source3/include/vfs.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    VFS structures and parameters
   4    Copyright (C) Jeremy Allison                         1999-2005
   5    Copyright (C) Tim Potter                             1999
   6    Copyright (C) Alexander Bokovoy                      2002-2005
   7    Copyright (C) Stefan (metze) Metzmacher              2003
   8    Copyright (C) Volker Lendecke                        2009
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22
  23    This work was sponsored by Optifacio Software Services, Inc.
  24 */
  25
  26 #ifndef _VFS_H
  27 #define _VFS_H
  28
  29 /* Avoid conflict with an AIX include file */
  30
  31 #ifdef vfs_ops
  32 #undef vfs_ops
  33 #endif
  34
  35 /*
  36  * As we're now (thanks Andrew ! :-) using file_structs and connection
  37  * structs in the vfs - then anyone writing a vfs must include includes.h...
  38  */
  39
  40 /*
  41  * This next constant specifies the version number of the VFS interface
  42  * this smbd will load. Increment this if *ANY* changes are made to the
  43  * vfs_ops below. JRA.
  44  *
  45  * If you change anything here, please also update modules/vfs_full_audit.c.
  46  * VL.
  47  */
  48
  49 /*
  50  * Changed to version 2 for CIFS UNIX extensions (mknod and link added). JRA.
  51  * Changed to version 3 for POSIX acl extensions. JRA.
  52  * Changed to version 4 for cascaded VFS interface. Alexander Bokovoy.
  53  * Changed to version 5 for sendfile addition. JRA.
  54  * Changed to version 6 for the new module system, fixed cascading and quota functions. --metze
  55  * Changed to version 7 to include the get_nt_acl info parameter. JRA.
  56  * Changed to version 8 includes EA calls. JRA.
  57  * Changed to version 9 to include the get_shadow_data call. --metze
  58  * Changed to version 10 to include pread pwrite calls.
  59  * Changed to version 11 to include seekdir telldir rewinddir calls. JRA
  60  * Changed to version 12 to add mask and attributes to opendir(). JRA
  61  * Also include aio calls. JRA.
  62  * Changed to version 13 as the internal structure of files_struct has changed. JRA
  63  * Changed to version 14 as we had to change DIR to SMB_STRUCT_DIR. JRA
  64  * Changed to version 15 as we added the statvfs call. JRA
  65  * Changed to version 16 as we added the getlock call. JRA
  66  * Changed to version 17 as we removed redundant connection_struct parameters. --jpeach
  67  * Changed to version 18 to add fsp parameter to the open call -- jpeach
  68  * Also include kernel_flock call - jmcd
  69  * Changed to version 19, kernel change notify has been merged
  70  * Also included linux setlease call - jmcd
  71  * Changed to version 20, use ntimes call instead of utime (greater
  72  * timestamp resolition. JRA.
  73  * Changed to version21 to add chflags operation -- jpeach
  74  * Changed to version22 to add lchown operation -- jra
  75  * Leave at 22 - not yet released. But change set_nt_acl to return an NTSTATUS. jra.
  76  * Leave at 22 - not yet released. Add file_id_create operation. --metze
  77  * Leave at 22 - not yet released. Change all BOOL parameters (int) to bool. jra.
  78  * Leave at 22 - not yet released. Added recvfile.
  79  * Leave at 22 - not yet released. Change get_nt_acl to return NTSTATUS - vl
  80  * Leave at 22 - not yet released. Change get_nt_acl to *not* take a
  81  * files_struct. - obnox.
  82  * Leave at 22 - not yet released. Remove parameter fd from fget_nt_acl. - obnox
  83  * Leave at 22 - not yet released. Remove parameter fd from gset_nt_acl. - obnox
  84  * Leave at 22 - not yet released. Remove parameter fd from pread. - obnox
  85  * Leave at 22 - not yet released. Remove parameter fd from pwrite. - obnox
  86  * Leave at 22 - not yet released. Remove parameter fd from lseek. - obnox
  87  * Leave at 22 - not yet released. Remove parameter fd from fsync. - obnox
  88  * Leave at 22 - not yet released. Remove parameter fd from fstat. - obnox
  89  * Leave at 22 - not yet released. Remove parameter fd from fchmod. - obnox
  90  * Leave at 22 - not yet released. Remove parameter fd from fchown. - obnox
  91  * Leave at 22 - not yet released. Remove parameter fd from ftruncate. - obnox
  92  * Leave at 22 - not yet released. Remove parameter fd from lock. - obnox
  93  * Leave at 22 - not yet released. Remove parameter fd from kernel_flock. - obnox
  94  * Leave at 22 - not yet released. Remove parameter fd from linux_setlease. - obnox
  95  * Leave at 22 - not yet released. Remove parameter fd from getlock. - obnox
  96  * Leave at 22 - not yet released. Remove parameter fd from sys_acl_get_fd. - obnox
  97  * Leave at 22 - not yet released. Remove parameter fd from fchmod_acl. - obnox
  98  * Leave at 22 - not yet released. Remove parameter fd from sys_acl_set_fd. - obnox
  99  * Leave at 22 - not yet released. Remove parameter fd from fgetxattr. - obnox
 100  * Leave at 22 - not yet released. Remove parameter fd from flistxattr. - obnox
 101  * Leave at 22 - not yet released. Remove parameter fd from fremovexattr. - obnox
 102  * Leave at 22 - not yet released. Remove parameter fd from fsetxattr. - obnox
 103  * Leave at 22 - not yet released. Remove parameter fd from aio_cancel. - obnox
 104  * Leave at 22 - not yet released. Remove parameter fd from read. - obnox
 105  * Leave at 22 - not yet released. Remove parameter fd from write. - obnox
 106  * Leave at 22 - not yet released. Remove parameter fromfd from sendfile. - obnox
 107  * Leave at 22 - not yet released. Remove parameter fromfd from recvfile. - obnox
 108  * Leave at 22 - not yet released. Additional change: add operations for offline files -- ab
 109  * Leave at 22 - not yet released. Add the streaminfo call. -- jpeach, vl
 110  * Leave at 22 - not yet released. Remove parameter fd from close_fn. - obnox
 111  * Changed to version 23 - remove set_nt_acl call. This can only be done via an
 112  *                         open handle. JRA.
 113  * Changed to version 24 - make security descriptor const in fset_nt_acl. JRA.
 114  * Changed to version 25 - Jelmer's change from SMB_BIG_UINT to uint64_t.
 115  * Leave at 25 - not yet released. Add create_file call. -- tprouty.
 116  * Leave at 25 - not yet released. Add create time to ntimes. -- tstecher.
 117  * Leave at 25 - not yet released. Add get_alloc_size call. -- tprouty.
 118  * Leave at 25 - not yet released. Add SMB_STRUCT_STAT to readdir. - sdann
 119  * Leave at 25 - not yet released. Add init_search_op call. - sdann
 120  * Leave at 25 - not yet released. Add locking calls. -- zkirsch.
 121  * Leave at 25 - not yet released. Add strict locking calls. -- drichards.
 122  * Changed to version 26 - Plumb struct smb_filename to SMB_VFS_CREATE_FILE,
 123  *                         SMB_VFS_OPEN, SMB_VFS_STAT, SMB_VFS_LSTAT,
 124  *                         SMB_VFS_RENAME, SMB_VFS_UNLINK, SMB_VFS_NTIMES.
 125  * Changed to version 27 - not yet released. Added enum timestamp_set_resolution
 126  *                         return to fs_capabilities call. JRA.
 127  * Leave at 27 - not yet released. Add translate_name VFS call to convert
 128  *               UNIX names to Windows supported names -- asrinivasan.
 129  * Changed to version 28 - Add private_flags uint32_t to CREATE call.
 130  * Leave at 28 - not yet released. Change realpath to assume NULL and return a
 131  *               malloc'ed path. JRA.
 132  * Leave at 28 - not yet released. Move posix_fallocate into the VFS
 133  *              where it belongs. JRA.
 134  * Leave at 28 - not yet released. Rename posix_fallocate to fallocate
 135  *              to split out the two possible uses. JRA.
 136  * Leave at 28 - not yet released. Add fdopendir. JRA.
 137  * Leave at 28 - not yet released. Rename open function to open_fn. - gd
 138  * Leave at 28 - not yet released. Make getwd function always return malloced memory. JRA.
 139  * Bump to version 29 - Samba 3.6.0 will ship with interface version 28.
 140  * Leave at 29 - not yet releases. Add fsctl. Richard Sharpe
 141  * Leave at 29 - not yet released. add SMB_VFS_GET_DFS_REFERRAL() - metze
 142  * Leave at 29 - not yet released. Remove l{list,get,set,remove}xattr - abartlet
 143  * Leave at 29 - not yet released. move to plain off_t - abartlet
 144  * Leave at 29 - not yet released. Remove sys_acl functions other than set and get - abartlet
 145  * Leave at 29 - not yet released. Added backup_intent bool to files_struct - JRA
 146  * Leave at 29 - not yet released. Add durable handle functions - metze obnox
 147  * Leave at 29 - not yet released. Added sys_acl_blob_get_file and sys_acl_blob_get_fd
 148  * Bump to version 30 - Samba 4.0.0 will ship with interface version 30
 149  * Leave at 30 - not yet released. Added conn->cwd to save vfs_GetWd() calls.
 150  * Leave at 30 - not yet released. Changed sys_acl_blob_get_file interface to remove type
 151  * Bump to version 31 - Samba 4.1.0 will ship with interface version 31
 152  * Leave at 31 - not yet released. Make struct vuid_cache_entry in
 153  *               connection_struct a pointer.
 154  * Leave at 31 - not yet released. Add share_access to vuid_cache_entry.
 155  * Leave at 31 - not yet released. add SMB_VFS_COPY_CHUNK()
 156  * Leave at 31 - not yet released. Remove the unused
 157  *               fsp->pending_break_messages array
 158  * Leave at 31 - not yet released. add SMB_VFS_[GET SET]_COMPRESSION()
 159  *
 160  * Bump to version 32 - Samba 4.2 will ship with that.
 161  * Version 32 - Add "lease" to CREATE_FILE operation
 162  * Version 32 - Add "lease" to struct files_struct
 163  * Version 32 - Add SMB_VFS_READDIR_ATTR()
 164  * Version 32 - Add in and out create context blobs to create_file
 165  * Version 32 - Remove unnecessary SMB_VFS_DISK_FREE() small_query parameter
 166  * Bump to version 33 - Samba 4.3 will ship with that.
 167  * Version 33 - change fallocate mode flags param from enum->uint32_t
 168  * Version 33 - Add snapshot create delete calls
 169  * Version 33 - Add OS X SMB2 AAPL copyfile extension flag to fsp
 170  * Version 33 - Remove notify_watch_fn
 171  * Bump to version 34 - Samba 4.4 will ship with that
 172  * Version 34 - Remove bool posix_open, add uint64_t posix_flags
 173  * Version 34 - Added bool posix_pathnames to struct smb_request
 174  * Bump to version 35 - Samba 4.5 will ship with that
 175  * Version 35 - Change get_nt_acl_fn from const char *, to
 176  *              const struct smb_filename *
 177  * Version 35 - Change mkdir from const char *, to
 178  *              const struct smb_filename *
 179  * Version 35 - Change rmdir from const char *, to
 180  *              const struct smb_filename *
 181  * Version 35 - Change opendir from const char *, to
 182  *              const struct smb_filename *
 183  * Version 35 - Wrap aio async funtions args in a struct vfs_aio_state
 184  * Version 35 - Change chmod from const char *, to
 185  *              const struct smb_filename *
 186  * Version 35 - Change chmod_acl from const char *, to
 187  *              const struct smb_filename *
 188  * Version 35 - Change chown from const char *, to
 189  *              const struct smb_filename *
 190  * Version 35 - Change lchown from const char *, to
 191  *              const struct smb_filename *
 192  * Version 35 - Change streaminfo from const char *, to
 193  *              const struct smb_filename *
 194  * Version 35 - Add uint32_t flags to struct smb_filename
 195  * Version 35 - Add get set fget fset dos attribute functions.
 196  * Version 35 - Add bool use_ofd_locks to struct files_struct
 197  * Bump to version 36 - Samba 4.6 will ship with that
 198  * Version 36 - Remove is_offline and set_offline
 199  * Version 37 - Module init functions now take a TALLOC_CTX * parameter.
 200  * Version 37 - Add vfs_copy_chunk_flags for DUP_EXTENTS_TO_FILE
 201  * Version 37 - Change sys_acl_delete_def_file from const char *
 202  *              to const struct smb_filename *
 203  * Version 37 - Change sys_acl_get_file from const char *
 204  *              to const struct smb_filename *
 205  * Version 37 - Change sys_acl_blob_get_file from const char *
 206  *              to const struct smb_filename *
 207  * Version 37 - Change sys_acl_set_file from const char *
 208  *              to const struct smb_filename *
 209  * Version 37 - Change listxattr from const char *
 210  *              to const struct smb_filename *
 211  * Version 37 - Change removexattr from const char *
 212  *              to const struct smb_filename *
 213  * Version 37 - Change setxattr from const char *
 214  *              to const struct smb_filename *
 215  * Version 37 - Change getxattr from const char *
 216  *              to const struct smb_filename *
 217  * Version 37 - Change mknod from const char * to const struct smb_filename *
 218  * Version 37 - Change chflags from const char *
 219  *              to const struct smb_filename *
 220  * Version 37 - Change disk_free from const char *
 221  *              to const struct smb_filename *
 222  * Version 37 - Change get_quota from const char *
 223  *              to const struct smb_filename *
 224  * Version 37 - Change link from const char *
 225  *              to const struct smb_filename *
 226  * Version 37 - Change statvfs from const char *
 227  *              to const struct smb_filename *
 228  * Version 37 - Change readlink from const char *
 229  *              to const struct smb_filename *
 230  * Version 37 - Change symlink from const char *
 231  *              to const struct smb_filename *
 232  * Version 37 - Change chdir from const char *
 233  *              to const struct smb_filename *
 234  * Version 37 - Change getwd from char *
 235  *              to const struct smb_filename *
 236  * Version 37 - Change conn->cwd from char *
 237  *              to struct smb_filename *
 238  * Version 37 - Change realpath from char *
 239  *              to struct smb_filename *
 240  * Version 37 - Change connectpath from char *
 241  *              to struct smb_filename *
 242  * Version 37 - Add SMB_VFS_OFFLOAD_READ_SEND RECV
 243  * Version 37 - Rename SMB_VFS_COPY_CHUNK_SEND RECV to
 244  *              SMB_VFS_OFFLOAD_READ_SEND RECV
 245  * Version 37 - Remove SMB_VFS_STRICT_UNLOCK
 246  * Version 37 - Rename SMB_VFS_STRICT_LOCK to
 247  *              SMB_VFS_STRICT_LOCK_CHECK
 248  * Version 38 - Remove SMB_VFS_INIT_SEARCH_OP
 249  * Bump to version 39, Samba 4.9 will ship with that
 250  * Version 39 - Remove SMB_VFS_FSYNC
 251  *              Only implement async versions.
 252  * Version 39 - Remove SMB_VFS_READ
 253  *              All users are now pread or async versions.
 254  * Version 39 - Remove SMB_VFS_WRITE
 255  *              All users are now pwrite or async versions.
 256  * Version 39 - Remove SMB_VFS_CHMOD_ACL - no longer used.
 257  * Version 39 - Remove SMB_VFS_FCHMOD_ACL - no longer used.
 258  * Version 39 - Remove struct dfree_cached_info pointer from
 259  *              connection struct
 260  * Bump to version 40, Samba 4.10 will ship with that
 261  * Version 40 - Add SMB_VFS_GETXATTRAT_SEND RECV
 262  * Version 40 - Add SMB_VFS_GET_DOS_ATTRIBUTES_SEND RECV
 263  * Bump to version 41, Samba 4.11 will ship with that
 264  * Version 41 - Remove SMB_VFS_BRL_CANCEL_WINDOWS
 265  * Version 41 - Remove unused st_ex_mask from struct stat_ex
 266  * Version 41 - convert struct stat_ex.st_ex_calculated_birthtime to flags
 267  * Version 41 - add st_ex_itime to struct stat_ex
 268  * Version 41 - add st_ex_file_id to struct stat_ex
 269  * Version 41 - add SMB_VFS_FS_FILE_ID
 270  * Version 41 - Remove "blocking_lock" parameter from
 271  *              SMB_VFS_BRL_LOCK_WINDOWS
 272  * Version 41 - Remove "msg_ctx" parameter from SMB_VFS_BRL_UNLOCK_WINDOWS
 273  * Bump to version 42, Samba 4.12 will ship with that
 274  * Version 42 - Remove share_access member from struct files_struct
 275  * Version 42 - Make "lease" a const* in create_file_fn
 276  * Version 42 - Move SMB_VFS_RENAME -> SMB_VFS_RENAMEAT
 277  * Version 42 - Move SMB_VFS_LINK -> SMB_VFS_LINKAT.
 278  * Version 42 - Move SMB_VFS_MKNOD -> SMB_VFS_MKDNODAT.
 279  * Version 42 - Move SMB_VFS_READLINK -> SMB_VFS_READLINKAT.
 280  * Version 42 - Move SMB_VFS_SYMLINK -> SMB_VFS_SYMLINKAT.
 281  * Version 42 - Move SMB_VFS_MKDIR -> SMB_VFS_MKDIRAT.
 282  * Version 42 - Move change_to_user() -> change_to_user_and_service()
 283  * Version 42 - Move change_to_user_by_fsp() -> change_to_user_and_service_by_fsp()
 284  * Version 42 - Move [un]become_user*() -> [un]become_user_without_service*()
 285  * Version 42 - Move SMB_VFS_UNLINK -> SMB_VFS_UNLINKAT.
 286  * Version 42 - Add SMB_VFS_FCNTL
 287  * Version 42 - Remove SMB_VFS_RMDIR.
 288  *              Use SMB_VFS_UNLINKAT(.., AT_REMOVEDIR) instead.
 289  * Version 42 - Remove SMB_VFS_CHOWN
 290  * Version 42 - Remove struct write_cache *wcp from files_struct
 291  * Version 42 - SMB_VFS_NTIMES() receives null times based on UTIMES_OMIT
 292  * Version 42 - Add SMB_VFS_CREATE_DFS_PATHAT()
 293  * Version 42 - Add SMB_VFS_READ_DFS_PATHAT()
 294  * Change to Version 43 - will ship with 4.13.
 295  * Version 43 - Remove deferred_close from struct files_struct
 296  * Version 43 - Remove SMB_VFS_OPENDIR()
 297  * Version 43 - Remove original_lcomp from struct smb_filename
 298  * Version 43 - files_struct flags:
 299  *              bool kernel_share_modes_taken
 300  *              bool update_write_time_triggered
 301  *              bool update_write_time_on_close
 302  *              bool write_time_forced
 303  *              bool can_lock
 304  *              bool can_read
 305  *              bool can_write
 306  *              bool modified
 307  *              bool is_directory
 308  *              bool aio_write_behind
 309  *              bool initial_delete_on_close
 310  *              bool delete_on_close
 311  *              bool is_sparse
 312  *              bool backup_intent
 313  *              bool use_ofd_locks
 314  *              bool closing
 315  *              bool lock_failure_seen
 316  *              changed to bitfields.
 317  * Version 43 - convert SMB_VFS_GET_REAL_FILENAME() arg path
 318  *              to be a struct smb_filename
 319  * Version 43 - convert link_contents arg of SMB_VFS_SYMLINKAT()
 320  *              to struct smb_filename
 321  * Version 43 - Add SMB_VFS_GET_NT_ACL_AT().
 322  */
 323
 324 #define SMB_VFS_INTERFACE_VERSION 43
 325
 326 /*
 327     All intercepted VFS operations must be declared as static functions inside module source
 328     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
 329     example VFS modules for more details.
 330 */
 331
 332 /* VFS operations structure */
 333
 334 struct vfs_handle_struct;
 335 struct connection_struct;
 336 struct files_struct;
 337 struct security_descriptor;
 338 struct vfs_statvfs_struct;
 339 struct smb_request;
 340 struct ea_list;
 341 struct smb_file_time;
 342 struct smb_filename;
 343 struct dfs_GetDFSReferral;
 344
 345 typedef union unid_t {
 346         uid_t uid;
 347         gid_t gid;
 348 } unid_t;
 349
 350 struct fd_handle {
 351         size_t ref_count;
 352         int fd;
 353         uint64_t position_information;
 354         off_t pos;
 355         uint32_t private_options;       /* NT Create options, but we only look at
 356                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
 357                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
 358                                  * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
 359                                  * for print files *only*, where
 360                                  * DELETE_ON_CLOSE is not stored in the share
 361                                  * mode database.
 362                                  */
 363         uint64_t gen_id;
 364 };
 365
 366 struct fsp_lease {
 367         size_t ref_count;
 368         struct smbd_server_connection *sconn;
 369         struct tevent_timer *timeout;
 370         struct smb2_lease lease;
 371 };
 372
 373 typedef struct files_struct {
 374         struct files_struct *next, *prev;
 375         uint64_t fnum;
 376         struct smbXsrv_open *op;
 377         struct connection_struct *conn;
 378         struct fd_handle *fh;
 379         unsigned int num_smb_operations;
 380         struct file_id file_id;
 381         uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
 382         uint16_t file_pid;
 383         uint64_t vuid; /* SMB2 compat */
 384         struct timeval open_time;
 385         uint32_t access_mask;           /* NTCreateX access bits (FILE_READ_DATA etc.) */
 386         struct {
 387                 bool kernel_share_modes_taken : 1;
 388                 bool update_write_time_triggered : 1;
 389                 bool update_write_time_on_close : 1;
 390                 bool write_time_forced : 1;
 391                 bool can_lock : 1;
 392                 bool can_read : 1;
 393                 bool can_write : 1;
 394                 bool modified : 1;
 395                 bool is_directory : 1;
 396                 bool aio_write_behind : 1;
 397                 bool initial_delete_on_close : 1;
 398                 bool delete_on_close : 1;
 399                 bool is_sparse : 1;
 400                 bool backup_intent : 1;
 401                 bool use_ofd_locks : 1;
 402                 bool closing : 1;
 403                 bool lock_failure_seen : 1;
 404         } fsp_flags;
 405
 406         struct tevent_timer *update_write_time_event;
 407         struct timespec close_write_time;
 408
 409         int oplock_type;
 410
 411         /*
 412          * Cache of our lease_type, stored as "current_state" in
 413          * leases.tdb
 414          */
 415         int leases_db_seqnum;
 416         uint32_t lease_type;
 417
 418         struct fsp_lease *lease;
 419         int sent_oplock_break;
 420         struct tevent_timer *oplock_timeout;
 421         struct lock_struct last_lock_failure;
 422         int current_lock_count; /* Count the number of outstanding locks and pending locks. */
 423
 424         uint64_t posix_flags;
 425         struct smb_filename *fsp_name;
 426         uint32_t name_hash;             /* Jenkins hash of full pathname. */
 427         uint64_t mid;                   /* Mid of the operation that created us. */
 428
 429         struct vfs_fsp_data *vfs_extension;
 430         struct fake_file_handle *fake_file_handle;
 431
 432         struct notify_change_buf *notify;
 433
 434         struct files_struct *base_fsp; /* placeholder for delete on close */
 435
 436         /*
 437          * Cache of share_mode_data->flags
 438          */
 439         int share_mode_flags_seqnum;
 440         uint16_t share_mode_flags;
 441
 442         /*
 443          * Read-only cached brlock record, thrown away when the
 444          * brlock.tdb seqnum changes. This avoids fetching data from
 445          * the brlock.tdb on every read/write call.
 446          */
 447         int brlock_seqnum;
 448         struct byte_range_lock *brlock_rec;
 449
 450         struct dptr_struct *dptr;
 451
 452         /* if not NULL, means this is a print file */
 453         struct print_file_data *print_file;
 454
 455         /*
 456          * Optimize the aio_requests array for high performance: Never
 457          * shrink it, maintain num_aio_requests separately
 458          */
 459         unsigned num_aio_requests;
 460         struct tevent_req **aio_requests;
 461
 462         /*
 463          * Requests waiting for smb1 byte range locks. They are
 464          * generated by smbd_smb1_do_locks_send and are required here,
 465          * because lock cancel operations index through reply_lockingX
 466          * not based on mid but on the lock type and range.
 467          */
 468         struct tevent_req **blocked_smb1_lock_reqs;
 469
 470         /*
 471          * SMB1 remembers lock failures and delays repeated blocking
 472          * lock attempts on the same offset.
 473          */
 474         uint64_t lock_failure_offset;
 475 } files_struct;
 476
 477 #define FSP_POSIX_FLAGS_OPEN            0x01
 478 #define FSP_POSIX_FLAGS_RENAME          0x02
 479 #define FSP_POSIX_FLAGS_PATHNAMES       0x04
 480
 481 #define FSP_POSIX_FLAGS_ALL                     \
 482         (FSP_POSIX_FLAGS_OPEN |                 \
 483          FSP_POSIX_FLAGS_PATHNAMES |            \
 484          FSP_POSIX_FLAGS_RENAME)
 485
 486 struct vuid_cache_entry {
 487         struct auth_session_info *session_info;
 488         uint64_t vuid; /* SMB2 compat */
 489         bool read_only;
 490         uint32_t share_access;
 491 };
 492
 493 struct vuid_cache {
 494         unsigned int next_entry;
 495         struct vuid_cache_entry array[VUID_CACHE_SIZE];
 496 };
 497
 498 typedef struct {
 499         char *name;
 500         bool is_wild;
 501 } name_compare_entry;
 502
 503 struct share_params {
 504         int service;
 505 };
 506
 507 typedef struct connection_struct {
 508         struct connection_struct *next, *prev;
 509         struct smbd_server_connection *sconn; /* can be NULL */
 510         struct smbXsrv_tcon *tcon; /* can be NULL */
 511         uint32_t cnum; /* an index passed over the wire */
 512         struct share_params *params;
 513         bool force_user;
 514         struct vuid_cache *vuid_cache;
 515         bool printer;
 516         bool ipc;
 517         bool read_only; /* Attributes for the current user of the share. */
 518         uint32_t share_access;
 519         /* Does this filesystem honor
 520            sub second timestamps on files
 521            and directories when setting time ? */
 522         enum timestamp_set_resolution ts_res;
 523         char *connectpath;
 524         char *origpath;
 525         struct files_struct *cwd_fsp; /* Working directory. */
 526         bool tcon_done;
 527
 528         struct vfs_handle_struct *vfs_handles;          /* for the new plugins */
 529
 530         /*
 531          * This represents the user information on this connection. Depending
 532          * on the vuid using this tid, this might change per SMB request.
 533          */
 534         struct auth_session_info *session_info;
 535
 536         /*
 537          * If the "force group" parameter is set, this is the primary gid that
 538          * may be used in the users token, depending on the vuid using this tid.
 539          */
 540         gid_t force_group_gid;
 541
 542         uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
 543
 544         time_t lastused;
 545         time_t lastused_count;
 546         int num_files_open;
 547         unsigned int num_smb_operations; /* Count of smb operations on this tree. */
 548         int encrypt_level;
 549         bool encrypted_tid;
 550
 551         /* Semantics requested by the client or forced by the server config. */
 552         bool case_sensitive;
 553         bool case_preserve;
 554         bool short_case_preserve;
 555
 556         /* Semantics provided by the underlying filesystem. */
 557         int fs_capabilities;
 558         /* Device number of the directory of the share mount.
 559            Used to ensure unique FileIndex returns. */
 560         SMB_DEV_T base_share_dev;
 561
 562         name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
 563         name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
 564         name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */
 565         name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */
 566         struct trans_state *pending_trans;
 567
 568         struct rpc_pipe_client *spoolss_pipe;
 569
 570 } connection_struct;
 571
 572 struct smbd_smb2_request;
 573 struct referral;
 574
 575 struct smb_request {
 576         uint8_t cmd;
 577         uint16_t flags2;
 578         uint16_t smbpid;
 579         uint64_t mid; /* For compatibility with SMB2. */
 580         uint32_t seqnum;
 581         uint64_t vuid; /* For compatibility with SMB2. */
 582         uint32_t tid;
 583         uint8_t  wct;
 584         const uint16_t *vwv;
 585         uint16_t buflen;
 586         const uint8_t *buf;
 587         const uint8_t *inbuf;
 588
 589         /*
 590          * Async handling in the main smb processing loop is directed by
 591          * outbuf: reply_xxx routines indicate sync behaviour by putting their
 592          * reply into "outbuf". If they leave it as NULL, they take care of it
 593          * themselves, possibly later.
 594          *
 595          * If async handling is wanted, the reply_xxx routine must make sure
 596          * that it talloc_move()s the smb_req somewhere else.
 597          */
 598         uint8_t *outbuf;
 599
 600         size_t unread_bytes;
 601         bool encrypted;
 602         connection_struct *conn;
 603         struct smbd_server_connection *sconn;
 604         struct smbXsrv_connection *xconn;
 605
 606         /*
 607          * Pointer to session, can be NULL,
 608          * eg during negprot and session setup.
 609          */
 610         struct smbXsrv_session *session;
 611
 612         struct smb_perfcount_data pcd;
 613
 614         /*
 615          * Chained request handling
 616          */
 617         struct files_struct *chain_fsp;
 618
 619         /*
 620          * state information for async smb handling
 621          */
 622         void *async_priv;
 623
 624         /*
 625          * Back pointer to smb2 request.
 626          */
 627         struct smbd_smb2_request *smb2req;
 628
 629         /*
 630          * Request list for chained requests, we're part of it.
 631          */
 632         struct smb_request **chain;
 633
 634         struct timeval request_time;
 635
 636         bool posix_pathnames;
 637 };
 638
 639 /*
 640  * Info about an alternate data stream
 641  */
 642
 643 struct stream_struct {
 644         off_t size;
 645         off_t alloc_size;
 646         char *name;
 647 };
 648
 649 /* time info */
 650 struct smb_file_time {
 651         struct timespec mtime;
 652         struct timespec atime;
 653         struct timespec ctime;
 654         struct timespec create_time;
 655 };
 656
 657 /*
 658  * smb_filename
 659  */
 660 struct smb_filename {
 661         char *base_name;
 662         char *stream_name;
 663         uint32_t flags;
 664         SMB_STRUCT_STAT st;
 665         NTTIME twrp;
 666 };
 667
 668 /*
 669  * smb_filename flags. Define in terms of the FSP_POSIX_FLAGS_XX
 670  * to keep the numeric values consistent.
 671  */
 672
 673 #define SMB_FILENAME_POSIX_PATH         FSP_POSIX_FLAGS_PATHNAMES
 674
 675 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
 676                                 handle = handle->next; \
 677                          }
 678
 679 enum vfs_translate_direction {
 680         vfs_translate_to_unix = 0,
 681         vfs_translate_to_windows
 682 };
 683
 684 enum vfs_fallocate_flags {
 685         VFS_FALLOCATE_FL_KEEP_SIZE              = 0x0001,
 686         VFS_FALLOCATE_FL_PUNCH_HOLE             = 0x0002,
 687 };
 688
 689 struct vfs_aio_state {
 690         int error;
 691         uint64_t duration;
 692 };
 693
 694 /*
 695     Available VFS operations. These values must be in sync with vfs_ops struct
 696     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
 697     In particular, if new operations are added to vfs_ops, appropriate constants
 698     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
 699 */
 700 struct shadow_copy_data;
 701
 702 struct vfs_fn_pointers {
 703         /* Disk operations */
 704
 705         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
 706         void (*disconnect_fn)(struct vfs_handle_struct *handle);
 707         uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle,
 708                                 const struct smb_filename *smb_fname,
 709                                 uint64_t *bsize,
 710                                 uint64_t *dfree,
 711                                 uint64_t *dsize);
 712         int (*get_quota_fn)(struct vfs_handle_struct *handle,
 713                                 const struct smb_filename *smb_fname,
 714                                 enum SMB_QUOTA_TYPE qtype,
 715                                 unid_t id,
 716                                 SMB_DISK_QUOTA *qt);
 717         int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 718         int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
 719         int (*statvfs_fn)(struct vfs_handle_struct *handle,
 720                                 const struct smb_filename *smb_fname,
 721                                 struct vfs_statvfs_struct *statbuf);
 722         uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
 723
 724         /*
 725          * Note: that "struct dfs_GetDFSReferral *r"
 726          * needs to be a valid TALLOC_CTX
 727          */
 728         NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
 729                                          struct dfs_GetDFSReferral *r);
 730         NTSTATUS (*create_dfs_pathat_fn)(struct vfs_handle_struct *handle,
 731                                 struct files_struct *dirfsp,
 732                                 const struct smb_filename *smb_fname,
 733                                 const struct referral *reflist,
 734                                 size_t referral_count);
 735         NTSTATUS (*read_dfs_pathat_fn)(struct vfs_handle_struct *handle,
 736                                 TALLOC_CTX *mem_ctx,
 737                                 struct files_struct *dirfsp,
 738                                 const struct smb_filename *smb_fname,
 739                                 struct referral **ppreflist,
 740                                 size_t *preferral_count);
 741
 742         /* Directory operations */
 743
 744         DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32_t attributes);
 745         struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
 746                                          DIR *dirp,
 747                                          SMB_STRUCT_STAT *sbuf);
 748         void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
 749         long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
 750         void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
 751         int (*mkdirat_fn)(struct vfs_handle_struct *handle,
 752                         struct files_struct *dirfsp,
 753                         const struct smb_filename *smb_fname,
 754                         mode_t mode);
 755         int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
 756
 757         /* File operations */
 758
 759         int (*open_fn)(struct vfs_handle_struct *handle,
 760                        struct smb_filename *smb_fname, files_struct *fsp,
 761                        int flags, mode_t mode);
 762         NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
 763                                    struct smb_request *req,
 764                                    uint16_t root_dir_fid,
 765                                    struct smb_filename *smb_fname,
 766                                    uint32_t access_mask,
 767                                    uint32_t share_access,
 768                                    uint32_t create_disposition,
 769                                    uint32_t create_options,
 770                                    uint32_t file_attributes,
 771                                    uint32_t oplock_request,
 772                                    const struct smb2_lease *lease,
 773                                    uint64_t allocation_size,
 774                                    uint32_t private_flags,
 775                                    struct security_descriptor *sd,
 776                                    struct ea_list *ea_list,
 777                                    files_struct **result,
 778                                    int *pinfo,
 779                                    const struct smb2_create_blobs *in_context_blobs,
 780                                    struct smb2_create_blobs *out_context_blobs);
 781         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 782         ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
 783         struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
 784                                             TALLOC_CTX *mem_ctx,
 785                                             struct tevent_context *ev,
 786                                             struct files_struct *fsp,
 787                                             void *data,
 788                                             size_t n, off_t offset);
 789         ssize_t (*pread_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
 790         ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
 791         struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
 792                                              TALLOC_CTX *mem_ctx,
 793                                              struct tevent_context *ev,
 794                                              struct files_struct *fsp,
 795                                              const void *data,
 796                                              size_t n, off_t offset);
 797         ssize_t (*pwrite_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
 798         off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
 799         ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
 800         ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
 801         int (*renameat_fn)(struct vfs_handle_struct *handle,
 802                          struct files_struct *srcdir_fsp,
 803                          const struct smb_filename *smb_fname_src,
 804                          struct files_struct *dstdir_fsp,
 805                          const struct smb_filename *smb_fname_dst);
 806         struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
 807                                             TALLOC_CTX *mem_ctx,
 808                                             struct tevent_context *ev,
 809                                             struct files_struct *fsp);
 810         int (*fsync_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
 811         int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
 812         int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 813         int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
 814         uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
 815         int (*unlinkat_fn)(struct vfs_handle_struct *handle,
 816                         struct files_struct *srcdir_fsp,
 817                         const struct smb_filename *smb_fname,
 818                         int flags);
 819         int (*chmod_fn)(struct vfs_handle_struct *handle,
 820                         const struct smb_filename *smb_fname,
 821                         mode_t mode);
 822         int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 823         int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
 824         int (*lchown_fn)(struct vfs_handle_struct *handle,
 825                         const struct smb_filename *smb_fname,
 826                         uid_t uid,
 827                         gid_t gid);
 828         int (*chdir_fn)(struct vfs_handle_struct *handle,
 829                          const struct smb_filename *smb_fname);
 830         struct smb_filename *(*getwd_fn)(struct vfs_handle_struct *handle,
 831                                 TALLOC_CTX *mem_ctx);
 832         int (*ntimes_fn)(struct vfs_handle_struct *handle,
 833                          const struct smb_filename *smb_fname,
 834                          struct smb_file_time *ft);
 835         int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
 836         int (*fallocate_fn)(struct vfs_handle_struct *handle,
 837                             struct files_struct *fsp,
 838                             uint32_t mode,
 839                             off_t offset,
 840                             off_t len);
 841         bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
 842         int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
 843                                uint32_t share_access, uint32_t access_mask);
 844         int (*fcntl_fn)(struct vfs_handle_struct *handle,
 845                         struct files_struct *fsp, int cmd, va_list cmd_arg);
 846         int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
 847         bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
 848         int (*symlinkat_fn)(struct vfs_handle_struct *handle,
 849                                 const struct smb_filename *link_contents,
 850                                 struct files_struct *dirfsp,
 851                                 const struct smb_filename *new_smb_fname);
 852         int (*readlinkat_fn)(struct vfs_handle_struct *handle,
 853                                 struct files_struct *dirfsp,
 854                                 const struct smb_filename *smb_fname,
 855                                 char *buf,
 856                                 size_t bufsiz);
 857         int (*linkat_fn)(struct vfs_handle_struct *handle,
 858                                 struct files_struct *srcfsp,
 859                                 const struct smb_filename *old_smb_fname,
 860                                 struct files_struct *dstfsp,
 861                                 const struct smb_filename *new_smb_fname,
 862                                 int flags);
 863         int (*mknodat_fn)(struct vfs_handle_struct *handle,
 864                                 struct files_struct *dirfsp,
 865                                 const struct smb_filename *smb_fname,
 866                                 mode_t mode,
 867                                 SMB_DEV_T dev);
 868         struct smb_filename *(*realpath_fn)(struct vfs_handle_struct *handle,
 869                                 TALLOC_CTX *ctx,
 870                                 const struct smb_filename *smb_fname);
 871         int (*chflags_fn)(struct vfs_handle_struct *handle,
 872                                 const struct smb_filename *smb_fname,
 873                                 unsigned int flags);
 874         struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
 875                                             const SMB_STRUCT_STAT *sbuf);
 876         uint64_t (*fs_file_id_fn)(struct vfs_handle_struct *handle,
 877                                   const SMB_STRUCT_STAT *sbuf);
 878         struct tevent_req *(*offload_read_send_fn)(TALLOC_CTX *mem_ctx,
 879                                                    struct tevent_context *ev,
 880                                                    struct vfs_handle_struct *handle,
 881                                                    struct files_struct *fsp,
 882                                                    uint32_t fsctl,
 883                                                    uint32_t ttl,
 884                                                    off_t offset,
 885                                                    size_t to_copy);
 886         NTSTATUS (*offload_read_recv_fn)(struct tevent_req *req,
 887                                          struct vfs_handle_struct *handle,
 888                                          TALLOC_CTX *mem_ctx,
 889                                          DATA_BLOB *token_blob);
 890         struct tevent_req *(*offload_write_send_fn)(struct vfs_handle_struct *handle,
 891                                                     TALLOC_CTX *mem_ctx,
 892                                                     struct tevent_context *ev,
 893                                                     uint32_t fsctl,
 894                                                     DATA_BLOB *token,
 895                                                     off_t transfer_offset,
 896                                                     struct files_struct *dest_fsp,
 897                                                     off_t dest_off,
 898                                                     off_t to_copy);
 899         NTSTATUS (*offload_write_recv_fn)(struct vfs_handle_struct *handle,
 900                                           struct tevent_req *req,
 901                                           off_t *copied);
 902         NTSTATUS (*get_compression_fn)(struct vfs_handle_struct *handle,
 903                                        TALLOC_CTX *mem_ctx,
 904                                        struct files_struct *fsp,
 905                                        struct smb_filename *smb_fname,
 906                                        uint16_t *_compression_fmt);
 907         NTSTATUS (*set_compression_fn)(struct vfs_handle_struct *handle,
 908                                        TALLOC_CTX *mem_ctx,
 909                                        struct files_struct *fsp,
 910                                        uint16_t compression_fmt);
 911         NTSTATUS (*snap_check_path_fn)(struct vfs_handle_struct *handle,
 912                                        TALLOC_CTX *mem_ctx,
 913                                        const char *service_path,
 914                                        char **base_volume);
 915         NTSTATUS (*snap_create_fn)(struct vfs_handle_struct *handle,
 916                                    TALLOC_CTX *mem_ctx,
 917                                    const char *base_volume,
 918                                    time_t *tstamp,
 919                                    bool rw,
 920                                    char **base_path,
 921                                    char **snap_path);
 922         NTSTATUS (*snap_delete_fn)(struct vfs_handle_struct *handle,
 923                                    TALLOC_CTX *mem_ctx,
 924                                    char *base_path,
 925                                    char *snap_path);
 926
 927         NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
 928                                   struct files_struct *fsp,
 929                                   const struct smb_filename *smb_fname,
 930                                   TALLOC_CTX *mem_ctx,
 931                                   unsigned int *num_streams,
 932                                   struct stream_struct **streams);
 933
 934         int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
 935                                     const struct smb_filename *path,
 936                                     const char *name,
 937                                     TALLOC_CTX *mem_ctx,
 938                                     char **found_name);
 939
 940         const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
 941                                       const struct smb_filename *smb_fname);
 942
 943         NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
 944                                         struct byte_range_lock *br_lck,
 945                                         struct lock_struct *plock);
 946
 947         bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
 948                                       struct byte_range_lock *br_lck,
 949                                       const struct lock_struct *plock);
 950
 951         bool (*strict_lock_check_fn)(struct vfs_handle_struct *handle,
 952                                      struct files_struct *fsp,
 953                                      struct lock_struct *plock);
 954
 955         NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
 956                                       const char *name,
 957                                       enum vfs_translate_direction direction,
 958                                       TALLOC_CTX *mem_ctx,
 959                                       char **mapped_name);
 960
 961         NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
 962                              struct files_struct *fsp,
 963                              TALLOC_CTX *ctx,
 964                              uint32_t function,
 965                              uint16_t req_flags,
 966                              const uint8_t *_in_data,
 967                              uint32_t in_len,
 968                              uint8_t **_out_data,
 969                              uint32_t max_out_len,
 970                              uint32_t *out_len);
 971
 972         NTSTATUS (*get_dos_attributes_fn)(struct vfs_handle_struct *handle,
 973                                           struct smb_filename *smb_fname,
 974                                           uint32_t *dosmode);
 975
 976         NTSTATUS (*fget_dos_attributes_fn)(struct vfs_handle_struct *handle,
 977                                            struct files_struct *fsp,
 978                                            uint32_t *dosmode);
 979
 980         NTSTATUS (*set_dos_attributes_fn)(struct vfs_handle_struct *handle,
 981                                           const struct smb_filename *smb_fname,
 982                                           uint32_t dosmode);
 983
 984         NTSTATUS (*fset_dos_attributes_fn)(struct vfs_handle_struct *hande,
 985                                            struct files_struct *fsp,
 986                                            uint32_t dosmode);
 987
 988         struct tevent_req *(*get_dos_attributes_send_fn)(
 989                                 TALLOC_CTX *mem_ctx,
 990                                 struct tevent_context *ev,
 991                                 struct vfs_handle_struct *handle,
 992                                 files_struct *dir_fsp,
 993                                 struct smb_filename *smb_fname);
 994
 995         NTSTATUS (*get_dos_attributes_recv_fn)(
 996                                 struct tevent_req *req,
 997                                 struct vfs_aio_state *aio_state,
 998                                 uint32_t *dosmode);
 999
1000         /* NT ACL operations. */
1001
1002         NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
1003                                    struct files_struct *fsp,
1004                                    uint32_t security_info,
1005                                    TALLOC_CTX *mem_ctx,
1006                                    struct security_descriptor **ppdesc);
1007         NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
1008                                   const struct smb_filename *smb_fname,
1009                                   uint32_t security_info,
1010                                    TALLOC_CTX *mem_ctx,
1011                                   struct security_descriptor **ppdesc);
1012         NTSTATUS (*get_nt_acl_at_fn)(struct vfs_handle_struct *handle,
1013                                 struct files_struct *dirfsp,
1014                                 const struct smb_filename *smb_fname,
1015                                 uint32_t security_info,
1016                                 TALLOC_CTX *mem_ctx,
1017                                 struct security_descriptor **ppdesc);
1018         NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
1019                                    struct files_struct *fsp,
1020                                    uint32_t security_info_sent,
1021                                    const struct security_descriptor *psd);
1022
1023         NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
1024                                   struct smb_filename *file,
1025                                   struct security_acl *sacl,
1026                                   uint32_t access_requested,
1027                                   uint32_t access_denied);
1028
1029         /* POSIX ACL operations. */
1030
1031         SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle,
1032                                          const struct smb_filename *smb_fname,
1033                                          SMB_ACL_TYPE_T type,
1034                                          TALLOC_CTX *mem_ctx);
1035         SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle,
1036                                        struct files_struct *fsp,
1037                                        TALLOC_CTX *mem_ctx);
1038         int (*sys_acl_blob_get_file_fn)(struct vfs_handle_struct *handle,
1039                                         const struct smb_filename *smb_fname,
1040                                         TALLOC_CTX *mem_ctx,
1041                                         char **blob_description,
1042                                         DATA_BLOB *blob);
1043         int (*sys_acl_blob_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
1044                                       TALLOC_CTX *mem_ctx, char **blob_description,
1045                                       DATA_BLOB *blob);
1046         int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle,
1047                                         const struct smb_filename *smb_fname,
1048                                         SMB_ACL_TYPE_T acltype,
1049                                         SMB_ACL_T theacl);
1050         int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
1051         int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle,
1052                                         const struct smb_filename *smb_fname);
1053
1054         /* EA operations. */
1055         ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,
1056                                         const struct smb_filename *smb_fname,
1057                                         const char *name,
1058                                         void *value,
1059                                         size_t size);
1060         struct tevent_req *(*getxattrat_send_fn)(
1061                                 TALLOC_CTX *mem_ctx,
1062                                 struct tevent_context *ev,
1063                                 struct vfs_handle_struct *handle,
1064                                 files_struct *dir_fsp,
1065                                 const struct smb_filename *smb_fname,
1066                                 const char *xattr_name,
1067                                 size_t alloc_hint);
1068         ssize_t (*getxattrat_recv_fn)(struct tevent_req *req,
1069                                       struct vfs_aio_state *aio_state,
1070                                       TALLOC_CTX *mem_ctx,
1071                                       uint8_t **xattr_value);
1072         ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
1073         ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle,
1074                                         const struct smb_filename *smb_fname,
1075                                         char *list,
1076                                         size_t size);
1077         ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
1078         int (*removexattr_fn)(struct vfs_handle_struct *handle,
1079                                         const struct smb_filename *smb_fname,
1080                                         const char *name);
1081         int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
1082         int (*setxattr_fn)(struct vfs_handle_struct *handle,
1083                                         const struct smb_filename *smb_fname,
1084                                         const char *name,
1085                                         const void *value,
1086                                         size_t size,
1087                                         int flags);
1088         int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
1089
1090         /* aio operations */
1091         bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
1092
1093         /* durable handle operations */
1094         NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
1095                                       struct files_struct *fsp,
1096                                       TALLOC_CTX *mem_ctx,
1097                                       DATA_BLOB *cookie);
1098         NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
1099                                           struct files_struct *fsp,
1100                                           const DATA_BLOB old_cookie,
1101                                           TALLOC_CTX *mem_ctx,
1102                                           DATA_BLOB *new_cookie);
1103         NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
1104                                          struct smb_request *smb1req,
1105                                          struct smbXsrv_open *op,
1106                                          const DATA_BLOB old_cookie,
1107                                          TALLOC_CTX *mem_ctx,
1108                                          struct files_struct **fsp,
1109                                          DATA_BLOB *new_cookie);
1110
1111         NTSTATUS (*readdir_attr_fn)(struct vfs_handle_struct *handle,
1112                                     const struct smb_filename *fname,
1113                                     TALLOC_CTX *mem_ctx,
1114                                     struct readdir_attr_data **attr_data);
1115 };
1116
1117 /*
1118     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
1119     which describes all operations this module is willing to intercept.
1120     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
1121     using this information.
1122 */
1123
1124 typedef struct vfs_handle_struct {
1125         struct vfs_handle_struct  *next, *prev;
1126         const char *param;
1127         struct connection_struct *conn;
1128         const struct vfs_fn_pointers *fns;
1129         void *data;
1130         void (*free_data)(void **data);
1131 } vfs_handle_struct;
1132
1133
1134 typedef struct vfs_statvfs_struct {
1135         /* For undefined recommended transfer size return -1 in that field */
1136         uint32_t OptimalTransferSize;  /* bsize on some os, iosize on other os */
1137         uint32_t BlockSize;
1138
1139         /*
1140          The next three fields are in terms of the block size.
1141          (above). If block size is unknown, 4096 would be a
1142          reasonable block size for a server to report.
1143          Note that returning the blocks/blocksavail removes need
1144          to make a second call (to QFSInfo level 0x103 to get this info.
1145          UserBlockAvail is typically less than or equal to BlocksAvail,
1146          if no distinction is made return the same value in each.
1147         */
1148
1149         uint64_t TotalBlocks;
1150         uint64_t BlocksAvail;       /* bfree */
1151         uint64_t UserBlocksAvail;   /* bavail */
1152
1153         /* For undefined Node fields or FSID return -1 */
1154         uint64_t TotalFileNodes;
1155         uint64_t FreeFileNodes;
1156         uint64_t FsIdentifier;   /* fsid */
1157         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1158         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
1159
1160         int FsCapabilities;
1161 } vfs_statvfs_struct;
1162
1163 /* Add a new FSP extension of the given type. Returns a pointer to the
1164  * extenstion data.
1165  */
1166 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
1167     (type *)vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
1168
1169 /* Return a pointer to the existing FSP extension data. */
1170 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
1171     vfs_fetch_fsp_extension(handle, (fsp))
1172
1173 /* Return the talloc context associated with an FSP extension. */
1174 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
1175     vfs_memctx_fsp_extension(handle, (fsp))
1176
1177 /* Remove and destroy an FSP extension. */
1178 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
1179     vfs_remove_fsp_extension((handle), (fsp))
1180
1181 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
1182         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
1183                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
1184                 ret; \
1185         } \
1186 }
1187
1188 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
1189         if (!(handle)) { \
1190                 DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
1191                 ret; \
1192         } else { \
1193                 if ((handle)->free_data) { \
1194                         (handle)->free_data(&(handle)->data); \
1195                 } \
1196                 (handle)->data = (void *)datap; \
1197                 (handle)->free_data = free_fn; \
1198         } \
1199 }
1200
1201 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
1202         if ((handle) && (handle)->free_data) { \
1203                 (handle)->free_data(&(handle)->data); \
1204         } \
1205 }
1206
1207 /* Check whether module-specific data handle was already allocated or not */
1208 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
1209
1210 #define SMB_VFS_OP(x) ((void *) x)
1211
1212 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
1213
1214 #include "vfs_macros.h"
1215
1216 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1217                          const char *service, const char *user);
1218 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
1219 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1220                                 const struct smb_filename *smb_filename,
1221                                 uint64_t *bsize,
1222                                 uint64_t *dfree,
1223                                 uint64_t *dsize);
1224 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1225                                 const struct smb_filename *smb_filename,
1226                                 enum SMB_QUOTA_TYPE qtype,
1227                                 unid_t id,
1228                                 SMB_DISK_QUOTA *qt);
1229 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1230                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1231                            SMB_DISK_QUOTA *qt);
1232 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1233                                       struct files_struct *fsp,
1234                                       struct shadow_copy_data *shadow_copy_data,
1235                                       bool labels);
1236 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle,
1237                         const struct smb_filename *smb_fname,
1238                         struct vfs_statvfs_struct *statbuf);
1239 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1240                                       enum timestamp_set_resolution *p_ts_res);
1241 /*
1242  * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
1243  */
1244 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1245                                         struct dfs_GetDFSReferral *r);
1246 NTSTATUS smb_vfs_call_create_dfs_pathat(struct vfs_handle_struct *handle,
1247                                 struct files_struct *dirfsp,
1248                                 const struct smb_filename *smb_fname,
1249                                 const struct referral *reflist,
1250                                 size_t referral_count);
1251 NTSTATUS smb_vfs_call_read_dfs_pathat(struct vfs_handle_struct *handle,
1252                                 TALLOC_CTX *mem_ctx,
1253                                 struct files_struct *dirfsp,
1254                                 const struct smb_filename *smb_fname,
1255                                 struct referral **ppreflist,
1256                                 size_t *preferral_count);
1257 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1258                                         struct files_struct *fsp,
1259                                         const char *mask,
1260                                         uint32_t attributes);
1261 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1262                                         DIR *dirp,
1263                                         SMB_STRUCT_STAT *sbuf);
1264 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1265                           DIR *dirp, long offset);
1266 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1267                           DIR *dirp);
1268 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1269                              DIR *dirp);
1270 int smb_vfs_call_mkdirat(struct vfs_handle_struct *handle,
1271                         struct files_struct *dirfsp,
1272                         const struct smb_filename *smb_fname,
1273                         mode_t mode);
1274 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1275                           DIR *dir);
1276 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1277                       struct smb_filename *smb_fname, struct files_struct *fsp,
1278                       int flags, mode_t mode);
1279 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1280                                   struct smb_request *req,
1281                                   uint16_t root_dir_fid,
1282                                   struct smb_filename *smb_fname,
1283                                   uint32_t access_mask,
1284                                   uint32_t share_access,
1285                                   uint32_t create_disposition,
1286                                   uint32_t create_options,
1287                                   uint32_t file_attributes,
1288                                   uint32_t oplock_request,
1289                                   const struct smb2_lease *lease,
1290                                   uint64_t allocation_size,
1291                                   uint32_t private_flags,
1292                                   struct security_descriptor *sd,
1293                                   struct ea_list *ea_list,
1294                                   files_struct **result,
1295                                   int *pinfo,
1296                                   const struct smb2_create_blobs *in_context_blobs,
1297                                   struct smb2_create_blobs *out_context_blobs);
1298 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1299                        struct files_struct *fsp);
1300 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1301                            struct files_struct *fsp, void *data, size_t n,
1302                            off_t offset);
1303 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1304                                            TALLOC_CTX *mem_ctx,
1305                                            struct tevent_context *ev,
1306                                            struct files_struct *fsp,
1307                                            void *data,
1308                                            size_t n, off_t offset);
1309 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1310
1311 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1312                             struct files_struct *fsp, const void *data,
1313                             size_t n, off_t offset);
1314 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1315                                             TALLOC_CTX *mem_ctx,
1316                                             struct tevent_context *ev,
1317                                             struct files_struct *fsp,
1318                                             const void *data,
1319                                             size_t n, off_t offset);
1320 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1321
1322 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1323                              struct files_struct *fsp, off_t offset,
1324                              int whence);
1325 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1326                               files_struct *fromfsp, const DATA_BLOB *header,
1327                               off_t offset, size_t count);
1328 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1329                               files_struct *tofsp, off_t offset,
1330                               size_t count);
1331 int smb_vfs_call_renameat(struct vfs_handle_struct *handle,
1332                         struct files_struct *srcfsp,
1333                         const struct smb_filename *smb_fname_src,
1334                         struct files_struct *dstfsp,
1335                         const struct smb_filename *smb_fname_dst);
1336
1337 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1338                                            TALLOC_CTX *mem_ctx,
1339                                            struct tevent_context *ev,
1340                                            struct files_struct *fsp);
1341 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1342
1343 int smb_vfs_fsync_sync(files_struct *fsp);
1344 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1345                       struct smb_filename *smb_fname);
1346 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1347                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
1348 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1349                        struct smb_filename *smb_filename);
1350 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1351                                      struct files_struct *fsp,
1352                                      const SMB_STRUCT_STAT *sbuf);
1353 int smb_vfs_call_unlinkat(struct vfs_handle_struct *handle,
1354                         struct files_struct *dirfsp,
1355                         const struct smb_filename *smb_fname,
1356                         int flags);
1357 int smb_vfs_call_chmod(struct vfs_handle_struct *handle,
1358                         const struct smb_filename *smb_fname,
1359                         mode_t mode);
1360 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1361                         struct files_struct *fsp, mode_t mode);
1362 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1363                         struct files_struct *fsp, uid_t uid, gid_t gid);
1364 int smb_vfs_call_lchown(struct vfs_handle_struct *handle,
1365                         const struct smb_filename *smb_fname,
1366                         uid_t uid,
1367                         gid_t gid);
1368 int smb_vfs_call_chdir(struct vfs_handle_struct *handle,
1369                         const struct smb_filename *smb_fname);
1370 struct smb_filename *smb_vfs_call_getwd(struct vfs_handle_struct *handle,
1371                                 TALLOC_CTX *ctx);
1372 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1373                         const struct smb_filename *smb_fname,
1374                         struct smb_file_time *ft);
1375 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1376                            struct files_struct *fsp, off_t offset);
1377 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1378                            struct files_struct *fsp,
1379                            uint32_t mode,
1380                            off_t offset,
1381                            off_t len);
1382 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
1383                        struct files_struct *fsp, int op, off_t offset,
1384                        off_t count, int type);
1385 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1386                               struct files_struct *fsp, uint32_t share_access,
1387                               uint32_t access_mask);
1388 int smb_vfs_call_fcntl(struct vfs_handle_struct *handle,
1389                        struct files_struct *fsp, int cmd, ...);
1390 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1391                                 struct files_struct *fsp, int leasetype);
1392 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
1393                           struct files_struct *fsp, off_t *poffset,
1394                           off_t *pcount, int *ptype, pid_t *ppid);
1395 int smb_vfs_call_symlinkat(struct vfs_handle_struct *handle,
1396                         const struct smb_filename *link_contents,
1397                         struct files_struct *dirfsp,
1398                         const struct smb_filename *new_smb_fname);
1399 int smb_vfs_call_readlinkat(struct vfs_handle_struct *handle,
1400                         struct files_struct *dirfsp,
1401                         const struct smb_filename *smb_fname,
1402                         char *buf,
1403                         size_t bufsiz);
1404 int smb_vfs_call_linkat(struct vfs_handle_struct *handle,
1405                         struct files_struct *srcfsp,
1406                         const struct smb_filename *old_smb_fname,
1407                         struct files_struct *dstfsp,
1408                         const struct smb_filename *new_smb_fname,
1409                         int flags);
1410 int smb_vfs_call_mknodat(struct vfs_handle_struct *handle,
1411                         struct files_struct *dirfsp,
1412                         const struct smb_filename *smb_fname,
1413                         mode_t mode,
1414                         SMB_DEV_T dev);
1415 struct smb_filename *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1416                         TALLOC_CTX *ctx,
1417                         const struct smb_filename *smb_fname);
1418 int smb_vfs_call_chflags(struct vfs_handle_struct *handle,
1419                         const struct smb_filename *smb_fname,
1420                         unsigned int flags);
1421 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1422                                            const SMB_STRUCT_STAT *sbuf);
1423 uint64_t smb_vfs_call_fs_file_id(struct vfs_handle_struct *handle,
1424                                  const SMB_STRUCT_STAT *sbuf);
1425 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1426                                  struct files_struct *fsp,
1427                                  const struct smb_filename *smb_fname,
1428                                  TALLOC_CTX *mem_ctx,
1429                                  unsigned int *num_streams,
1430                                  struct stream_struct **streams);
1431 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1432                                    const struct smb_filename *path,
1433                                    const char *name,
1434                                    TALLOC_CTX *mem_ctx,
1435                                    char **found_name);
1436 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1437                                      const struct smb_filename *smb_fname);
1438 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1439                                        struct byte_range_lock *br_lck,
1440                                        struct lock_struct *plock);
1441 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1442                                      struct byte_range_lock *br_lck,
1443                                      const struct lock_struct *plock);
1444 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct *handle,
1445                                     struct files_struct *fsp,
1446                                     struct lock_struct *plock);
1447 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1448                                      const char *name,
1449                                      enum vfs_translate_direction direction,
1450                                      TALLOC_CTX *mem_ctx,
1451                                      char **mapped_name);
1452 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1453                             struct files_struct *fsp,
1454                             TALLOC_CTX *ctx,
1455                             uint32_t function,
1456                             uint16_t req_flags,
1457                             const uint8_t *_in_data,
1458                             uint32_t in_len,
1459                             uint8_t **_out_data,
1460                             uint32_t max_out_len,
1461                             uint32_t *out_len);
1462 NTSTATUS smb_vfs_call_get_dos_attributes(struct vfs_handle_struct *handle,
1463                                          struct smb_filename *smb_fname,
1464                                          uint32_t *dosmode);
1465 NTSTATUS smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct *handle,
1466                                           struct files_struct *fsp,
1467                                           uint32_t *dosmode);
1468 NTSTATUS smb_vfs_call_set_dos_attributes(struct vfs_handle_struct *handle,
1469                                          const struct smb_filename *smb_fname,
1470                                          uint32_t dosmode);
1471 NTSTATUS smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct *handle,
1472                                           struct files_struct *fsp,
1473                                           uint32_t dosmode);
1474 struct tevent_req *smb_vfs_call_get_dos_attributes_send(
1475                         TALLOC_CTX *mem_ctx,
1476                         struct tevent_context *ev,
1477                         struct vfs_handle_struct *handle,
1478                         files_struct *dir_fsp,
1479                         struct smb_filename *smb_fname);
1480 NTSTATUS smb_vfs_call_get_dos_attributes_recv(
1481                         struct tevent_req *req,
1482                         struct vfs_aio_state *aio_state,
1483                         uint32_t *dosmode);
1484 struct tevent_req *smb_vfs_call_offload_read_send(
1485         TALLOC_CTX *mem_ctx,
1486         struct tevent_context *ev,
1487         struct vfs_handle_struct *handle,
1488         struct files_struct *fsp,
1489         uint32_t fsctl,
1490         uint32_t ttl,
1491         off_t offset,
1492         size_t to_copy);
1493 NTSTATUS smb_vfs_call_offload_read_recv(struct tevent_req *req,
1494                                         struct vfs_handle_struct *handle,
1495                                         TALLOC_CTX *mem_ctx,
1496                                         DATA_BLOB *token_blob);
1497 struct tevent_req *smb_vfs_call_offload_write_send(struct vfs_handle_struct *handle,
1498                                                    TALLOC_CTX *mem_ctx,
1499                                                    struct tevent_context *ev,
1500                                                    uint32_t fsctl,
1501                                                    DATA_BLOB *token,
1502                                                    off_t transfer_offset,
1503                                                    struct files_struct *dest_fsp,
1504                                                    off_t dest_off,
1505                                                    off_t num);
1506 NTSTATUS smb_vfs_call_offload_write_recv(struct vfs_handle_struct *handle,
1507                                          struct tevent_req *req,
1508                                          off_t *copied);
1509 NTSTATUS smb_vfs_call_get_compression(struct vfs_handle_struct *handle,
1510                                       TALLOC_CTX *mem_ctx,
1511                                       struct files_struct *fsp,
1512                                       struct smb_filename *smb_fname,
1513                                       uint16_t *_compression_fmt);
1514 NTSTATUS smb_vfs_call_set_compression(struct vfs_handle_struct *handle,
1515                                       TALLOC_CTX *mem_ctx,
1516                                       struct files_struct *fsp,
1517                                       uint16_t compression_fmt);
1518 NTSTATUS smb_vfs_call_snap_check_path(vfs_handle_struct *handle,
1519                                       TALLOC_CTX *mem_ctx,
1520                                       const char *service_path,
1521                                       char **base_volume);
1522 NTSTATUS smb_vfs_call_snap_create(struct vfs_handle_struct *handle,
1523                                   TALLOC_CTX *mem_ctx,
1524                                   const char *base_volume,
1525                                   time_t *tstamp,
1526                                   bool rw,
1527                                   char **base_path,
1528                                   char **snap_path);
1529 NTSTATUS smb_vfs_call_snap_delete(struct vfs_handle_struct *handle,
1530                                   TALLOC_CTX *mem_ctx,
1531                                   char *base_path,
1532                                   char *snap_path);
1533 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1534                                   struct files_struct *fsp,
1535                                   uint32_t security_info,
1536                                   TALLOC_CTX *mem_ctx,
1537                                   struct security_descriptor **ppdesc);
1538 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1539                                  const struct smb_filename *smb_fname,
1540                                  uint32_t security_info,
1541                                  TALLOC_CTX *mem_ctx,
1542                                  struct security_descriptor **ppdesc);
1543 NTSTATUS smb_vfs_call_get_nt_acl_at(struct vfs_handle_struct *handle,
1544                                 struct files_struct *dirfsp,
1545                                 const struct smb_filename *smb_fname,
1546                                 uint32_t security_info,
1547                                 TALLOC_CTX *mem_ctx,
1548                                 struct security_descriptor **ppdesc);
1549 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1550                                   struct files_struct *fsp,
1551                                   uint32_t security_info_sent,
1552                                   const struct security_descriptor *psd);
1553 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1554                                  struct smb_filename *file,
1555                                  struct security_acl *sacl,
1556                                  uint32_t access_requested,
1557                                  uint32_t access_denied);
1558 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle,
1559                                 const struct smb_filename *file,
1560                                 mode_t mode);
1561 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1562                                         const struct smb_filename *smb_fname,
1563                                         SMB_ACL_TYPE_T type,
1564                                         TALLOC_CTX *mem_ctx);
1565 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1566                                       struct files_struct *fsp,
1567                                       TALLOC_CTX *mem_ctx);
1568 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
1569                                        const struct smb_filename *smb_fname,
1570                                        TALLOC_CTX *mem_ctx,
1571                                        char **blob_description,
1572                                        DATA_BLOB *blob);
1573 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
1574                                      struct files_struct *fsp,
1575                                      TALLOC_CTX *mem_ctx,
1576                                      char **blob_description,
1577                                      DATA_BLOB *blob);
1578 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1579                                 const struct smb_filename *smb_fname,
1580                                 SMB_ACL_TYPE_T acltype,
1581                                 SMB_ACL_T theacl);
1582 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1583                                 struct files_struct *fsp, SMB_ACL_T theacl);
1584 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1585                                 const struct smb_filename *smb_fname);
1586 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1587                                 const struct smb_filename *smb_fname,
1588                                 const char *name,
1589                                 void *value,
1590                                 size_t size);
1591 struct tevent_req *smb_vfs_call_getxattrat_send(
1592                         TALLOC_CTX *mem_ctx,
1593                         struct tevent_context *ev,
1594                         struct vfs_handle_struct *handle,
1595                         files_struct *dir_fsp,
1596                         const struct smb_filename *smb_fname,
1597                         const char *xattr_name,
1598                         size_t alloc_hint);
1599 ssize_t smb_vfs_call_getxattrat_recv(struct tevent_req *req,
1600                                      struct vfs_aio_state *aio_state,
1601                                      TALLOC_CTX *mem_ctx,
1602                                      uint8_t **xattr_value);
1603 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1604                                struct files_struct *fsp, const char *name,
1605                                void *value, size_t size);
1606 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1607                                 const struct smb_filename *smb_fname,
1608                                 char *list,
1609                                 size_t size);
1610 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1611                                 struct files_struct *fsp, char *list,
1612                                 size_t size);
1613 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1614                                 const struct smb_filename *smb_fname,
1615                                 const char *name);
1616 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1617                               struct files_struct *fsp, const char *name);
1618 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle,
1619                                 const struct smb_filename *smb_fname,
1620                                 const char *name,
1621                                 const void *value,
1622                                 size_t size,
1623                                 int flags);
1624 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1625                            const char *name, const void *value, size_t size,
1626                            int flags);
1627 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1628                            struct files_struct *fsp, const char *name,
1629                            const void *value, size_t size, int flags);
1630 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1631                             struct files_struct *fsp);
1632 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1633                                      struct files_struct *fsp,
1634                                      TALLOC_CTX *mem_ctx,
1635                                      DATA_BLOB *cookie);
1636 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1637                                          struct files_struct *fsp,
1638                                          const DATA_BLOB old_cookie,
1639                                          TALLOC_CTX *mem_ctx,
1640                                          DATA_BLOB *new_cookie);
1641 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1642                                         struct smb_request *smb1req,
1643                                         struct smbXsrv_open *op,
1644                                         const DATA_BLOB old_cookie,
1645                                         TALLOC_CTX *mem_ctx,
1646                                         struct files_struct **fsp,
1647                                         DATA_BLOB *new_cookie);
1648 NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
1649                                    const struct smb_filename *fname,
1650                                    TALLOC_CTX *mem_ctx,
1651                                    struct readdir_attr_data **attr_data);
1652
1653 NTSTATUS smb_register_vfs(int version, const char *name,
1654                           const struct vfs_fn_pointers *fns);
1655 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1656                                    files_struct *fsp, size_t ext_size,
1657                                    void (*destroy_fn)(void *p_data));
1658 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1659 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1660 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1661 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1662
1663 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers* fns,
1664                             const char *module);
1665
1666 /*
1667  * Helper functions from source3/modules/vfs_not_implemented.c
1668  */
1669 int vfs_not_implemented_connect(
1670                         vfs_handle_struct *handle,
1671                         const char *service,
1672                         const char *user);
1673 void vfs_not_implemented_disconnect(vfs_handle_struct *handle);
1674 uint64_t vfs_not_implemented_disk_free(vfs_handle_struct *handle,
1675                                 const struct smb_filename *smb_fname,
1676                                 uint64_t *bsize,
1677                                 uint64_t *dfree,
1678                                 uint64_t *dsize);
1679 int vfs_not_implemented_get_quota(vfs_handle_struct *handle,
1680                                 const struct smb_filename *smb_fname,
1681                                 enum SMB_QUOTA_TYPE qtype,
1682                                 unid_t id,
1683                                 SMB_DISK_QUOTA *dq);
1684 int vfs_not_implemented_set_quota(vfs_handle_struct *handle,
1685                                   enum SMB_QUOTA_TYPE qtype,
1686                                   unid_t id, SMB_DISK_QUOTA *dq);
1687 int vfs_not_implemented_get_shadow_copy_data(vfs_handle_struct *handle,
1688                                 files_struct *fsp,
1689                                 struct shadow_copy_data *shadow_copy_data,
1690                                 bool labels);
1691 int vfs_not_implemented_statvfs(struct vfs_handle_struct *handle,
1692                                 const struct smb_filename *smb_fname,
1693                                 struct vfs_statvfs_struct *statbuf);
1694 uint32_t vfs_not_implemented_fs_capabilities(struct vfs_handle_struct *handle,
1695                                 enum timestamp_set_resolution *p_ts_res);
1696 NTSTATUS vfs_not_implemented_get_dfs_referrals(struct vfs_handle_struct *handle,
1697                                                struct dfs_GetDFSReferral *r);
1698 NTSTATUS vfs_not_implemented_create_dfs_pathat(struct vfs_handle_struct *handle,
1699                                 struct files_struct *dirfsp,
1700                                 const struct smb_filename *smb_fname,
1701                                 const struct referral *reflist,
1702                                 size_t referral_count);
1703 NTSTATUS vfs_not_implemented_read_dfs_pathat(struct vfs_handle_struct *handle,
1704                                 TALLOC_CTX *mem_ctx,
1705                                 struct files_struct *dirfsp,
1706                                 const struct smb_filename *smb_fname,
1707                                 struct referral **ppreflist,
1708                                 size_t *preferral_count);
1709 NTSTATUS vfs_not_implemented_snap_check_path(struct vfs_handle_struct *handle,
1710                                 TALLOC_CTX *mem_ctx,
1711                                 const char *service_path,
1712                                 char **base_volume);
1713 NTSTATUS vfs_not_implemented_snap_create(struct vfs_handle_struct *handle,
1714                                          TALLOC_CTX *mem_ctx,
1715                                          const char *base_volume,
1716                                          time_t *tstamp,
1717                                          bool rw,
1718                                          char **base_path,
1719                                          char **snap_path);
1720 NTSTATUS vfs_not_implemented_snap_delete(struct vfs_handle_struct *handle,
1721                                          TALLOC_CTX *mem_ctx,
1722                                          char *base_path,
1723                                          char *snap_path);
1724 DIR *vfs_not_implemented_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
1725                                    const char *mask, uint32_t attr);
1726 struct dirent *vfs_not_implemented_readdir(vfs_handle_struct *handle,
1727                                            DIR *dirp, SMB_STRUCT_STAT *sbuf);
1728 void vfs_not_implemented_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset);
1729 long vfs_not_implemented_telldir(vfs_handle_struct *handle, DIR *dirp);
1730 void vfs_not_implemented_rewind_dir(vfs_handle_struct *handle, DIR *dirp);
1731 int vfs_not_implemented_mkdirat(vfs_handle_struct *handle,
1732                 struct files_struct *dirfsp,
1733                 const struct smb_filename *smb_fname,
1734                 mode_t mode);
1735 int vfs_not_implemented_closedir(vfs_handle_struct *handle, DIR *dir);
1736 int vfs_not_implemented_open(vfs_handle_struct *handle,
1737                              struct smb_filename *smb_fname,
1738                              files_struct *fsp, int flags, mode_t mode);
1739 NTSTATUS vfs_not_implemented_create_file(struct vfs_handle_struct *handle,
1740                                 struct smb_request *req,
1741                                 uint16_t root_dir_fid,
1742                                 struct smb_filename *smb_fname,
1743                                 uint32_t access_mask,
1744                                 uint32_t share_access,
1745                                 uint32_t create_disposition,
1746                                 uint32_t create_options,
1747                                 uint32_t file_attributes,
1748                                 uint32_t oplock_request,
1749                                 const struct smb2_lease *lease,
1750                                 uint64_t allocation_size,
1751                                 uint32_t private_flags,
1752                                 struct security_descriptor *sd,
1753                                 struct ea_list *ea_list,
1754                                 files_struct **result, int *pinfo,
1755                                 const struct smb2_create_blobs *in_context_blobs,
1756                                 struct smb2_create_blobs *out_context_blobs);
1757 int vfs_not_implemented_close_fn(vfs_handle_struct *handle, files_struct *fsp);
1758 ssize_t vfs_not_implemented_pread(vfs_handle_struct *handle, files_struct *fsp,
1759                                   void *data, size_t n, off_t offset);
1760 struct tevent_req *vfs_not_implemented_pread_send(struct vfs_handle_struct *handle,
1761                                                   TALLOC_CTX *mem_ctx,
1762                                                   struct tevent_context *ev,
1763                                                   struct files_struct *fsp,
1764                                                   void *data, size_t n, off_t offset);
1765 ssize_t vfs_not_implemented_pread_recv(struct tevent_req *req,
1766                                        struct vfs_aio_state *vfs_aio_state);
1767 ssize_t vfs_not_implemented_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1768                                    const void *data, size_t n, off_t offset);
1769 struct tevent_req *vfs_not_implemented_pwrite_send(struct vfs_handle_struct *handle,
1770                                                    TALLOC_CTX *mem_ctx,
1771                                                    struct tevent_context *ev,
1772                                                    struct files_struct *fsp,
1773                                                    const void *data,
1774                                                    size_t n, off_t offset);
1775 ssize_t vfs_not_implemented_pwrite_recv(struct tevent_req *req,
1776                                 struct vfs_aio_state *vfs_aio_state);
1777 off_t vfs_not_implemented_lseek(vfs_handle_struct *handle, files_struct *fsp,
1778                         off_t offset, int whence);
1779 ssize_t vfs_not_implemented_sendfile(vfs_handle_struct *handle, int tofd,
1780                                      files_struct *fromfsp, const DATA_BLOB *hdr,
1781                                      off_t offset, size_t n);
1782 ssize_t vfs_not_implemented_recvfile(vfs_handle_struct *handle, int fromfd,
1783                                      files_struct *tofsp, off_t offset, size_t n);
1784 int vfs_not_implemented_renameat(vfs_handle_struct *handle,
1785                                files_struct *srcfsp,
1786                                const struct smb_filename *smb_fname_src,
1787                                files_struct *dstfsp,
1788                                const struct smb_filename *smb_fname_dst);
1789 struct tevent_req *vfs_not_implemented_fsync_send(struct vfs_handle_struct *handle,
1790                                                   TALLOC_CTX *mem_ctx,
1791                                                   struct tevent_context *ev,
1792                                                   struct files_struct *fsp);
1793 int vfs_not_implemented_fsync_recv(struct tevent_req *req,
1794                                    struct vfs_aio_state *vfs_aio_state);
1795 int vfs_not_implemented_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname);
1796 int vfs_not_implemented_fstat(vfs_handle_struct *handle, files_struct *fsp,
1797                         SMB_STRUCT_STAT *sbuf);
1798 int vfs_not_implemented_lstat(vfs_handle_struct *handle,
1799                               struct smb_filename *smb_fname);
1800 uint64_t vfs_not_implemented_get_alloc_size(struct vfs_handle_struct *handle,
1801                                             struct files_struct *fsp,
1802                                             const SMB_STRUCT_STAT *sbuf);
1803 int vfs_not_implemented_unlinkat(vfs_handle_struct *handle,
1804                                 struct files_struct *dirfsp,
1805                                 const struct smb_filename *smb_fname,
1806                                 int flags);
1807 int vfs_not_implemented_chmod(vfs_handle_struct *handle,
1808                               const struct smb_filename *smb_fname,
1809                               mode_t mode);
1810 int vfs_not_implemented_fchmod(vfs_handle_struct *handle, files_struct *fsp,
1811                                mode_t mode);
1812 int vfs_not_implemented_fchown(vfs_handle_struct *handle, files_struct *fsp,
1813                                uid_t uid, gid_t gid);
1814 int vfs_not_implemented_lchown(vfs_handle_struct *handle,
1815                                const struct smb_filename *smb_fname,
1816                                uid_t uid,
1817                                gid_t gid);
1818 int vfs_not_implemented_chdir(vfs_handle_struct *handle,
1819                               const struct smb_filename *smb_fname);
1820 struct smb_filename *vfs_not_implemented_getwd(vfs_handle_struct *handle,
1821                                                TALLOC_CTX *ctx);
1822 int vfs_not_implemented_ntimes(vfs_handle_struct *handle,
1823                                const struct smb_filename *smb_fname,
1824                                struct smb_file_time *ft);
1825 int vfs_not_implemented_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1826                                   off_t offset);
1827 int vfs_not_implemented_fallocate(vfs_handle_struct *handle, files_struct *fsp,
1828                                   uint32_t mode, off_t offset, off_t len);
1829 bool vfs_not_implemented_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
1830                               off_t offset, off_t count, int type);
1831 int vfs_not_implemented_kernel_flock(struct vfs_handle_struct *handle,
1832                                      struct files_struct *fsp,
1833                                      uint32_t share_access, uint32_t access_mask);
1834 int vfs_not_implemented_fcntl(struct vfs_handle_struct *handle,
1835                               struct files_struct *fsp, int cmd, va_list cmd_arg);
1836 int vfs_not_implemented_linux_setlease(struct vfs_handle_struct *handle,
1837                                        struct files_struct *fsp, int leasetype);
1838 bool vfs_not_implemented_getlock(vfs_handle_struct *handle, files_struct *fsp,
1839                                  off_t *poffset, off_t *pcount, int *ptype,
1840                                  pid_t *ppid);
1841 int vfs_not_implemented_symlinkat(vfs_handle_struct *handle,
1842                                 const struct smb_filename *link_contents,
1843                                 struct files_struct *dirfsp,
1844                                 const struct smb_filename *new_smb_fname);
1845 int vfs_not_implemented_vfs_readlinkat(vfs_handle_struct *handle,
1846                         struct files_struct *dirfsp,
1847                         const struct smb_filename *smb_fname,
1848                         char *buf,
1849                         size_t bufsiz);
1850 int vfs_not_implemented_linkat(vfs_handle_struct *handle,
1851                         struct files_struct *srcfsp,
1852                         const struct smb_filename *old_smb_fname,
1853                         struct files_struct *dstfsp,
1854                         const struct smb_filename *new_smb_fname,
1855                         int flags);
1856 int vfs_not_implemented_mknodat(vfs_handle_struct *handle,
1857                         struct files_struct *dirfsp,
1858                         const struct smb_filename *smb_fname,
1859                         mode_t mode,
1860                         SMB_DEV_T dev);
1861 struct smb_filename *vfs_not_implemented_realpath(vfs_handle_struct *handle,
1862                                                   TALLOC_CTX *ctx,
1863                                                   const struct smb_filename *smb_fname);
1864 int vfs_not_implemented_chflags(vfs_handle_struct *handle,
1865                                 const struct smb_filename *smb_fname,
1866                                 uint flags);
1867 struct file_id vfs_not_implemented_file_id_create(vfs_handle_struct *handle,
1868                                                   const SMB_STRUCT_STAT *sbuf);
1869 uint64_t vfs_not_implemented_fs_file_id(vfs_handle_struct *handle,
1870                                         const SMB_STRUCT_STAT *sbuf);
1871 struct tevent_req *vfs_not_implemented_offload_read_send(
1872                         TALLOC_CTX *mem_ctx,
1873                         struct tevent_context *ev,
1874                         struct vfs_handle_struct *handle,
1875                         struct files_struct *fsp,
1876                         uint32_t fsctl,
1877                         uint32_t ttl,
1878                         off_t offset,
1879                         size_t to_copy);
1880 NTSTATUS vfs_not_implemented_offload_read_recv(struct tevent_req *req,
1881                                        struct vfs_handle_struct *handle,
1882                                        TALLOC_CTX *mem_ctx,
1883                                        DATA_BLOB *_token_blob);
1884 struct tevent_req *vfs_not_implemented_offload_write_send(
1885                         struct vfs_handle_struct *handle,
1886                         TALLOC_CTX *mem_ctx,
1887                         struct tevent_context *ev,
1888                         uint32_t fsctl,
1889                         DATA_BLOB *token,
1890                         off_t transfer_offset,
1891                         struct files_struct *dest_fsp,
1892                         off_t dest_off,
1893                         off_t num);
1894 NTSTATUS vfs_not_implemented_offload_write_recv(struct vfs_handle_struct *handle,
1895                                                 struct tevent_req *req,
1896                                                 off_t *copied);
1897 NTSTATUS vfs_not_implemented_get_compression(struct vfs_handle_struct *handle,
1898                                              TALLOC_CTX *mem_ctx,
1899                                              struct files_struct *fsp,
1900                                              struct smb_filename *smb_fname,
1901                                              uint16_t *_compression_fmt);
1902 NTSTATUS vfs_not_implemented_set_compression(struct vfs_handle_struct *handle,
1903                                              TALLOC_CTX *mem_ctx,
1904                                              struct files_struct *fsp,
1905                                              uint16_t compression_fmt);
1906 NTSTATUS vfs_not_implemented_streaminfo(struct vfs_handle_struct *handle,
1907                                         struct files_struct *fsp,
1908                                         const struct smb_filename *smb_fname,
1909                                         TALLOC_CTX *mem_ctx,
1910                                         unsigned int *num_streams,
1911                                         struct stream_struct **streams);
1912 int vfs_not_implemented_get_real_filename(struct vfs_handle_struct *handle,
1913                                           const struct smb_filename *path,
1914                                           const char *name,
1915                                           TALLOC_CTX *mem_ctx,
1916                                           char **found_name);
1917 const char *vfs_not_implemented_connectpath(struct vfs_handle_struct *handle,
1918                                             const struct smb_filename *smb_fname);
1919 NTSTATUS vfs_not_implemented_brl_lock_windows(struct vfs_handle_struct *handle,
1920                                               struct byte_range_lock *br_lck,
1921                                               struct lock_struct *plock);
1922 bool vfs_not_implemented_brl_unlock_windows(struct vfs_handle_struct *handle,
1923                                             struct byte_range_lock *br_lck,
1924                                             const struct lock_struct *plock);
1925 bool vfs_not_implemented_strict_lock_check(struct vfs_handle_struct *handle,
1926                                            struct files_struct *fsp,
1927                                            struct lock_struct *plock);
1928 NTSTATUS vfs_not_implemented_translate_name(struct vfs_handle_struct *handle,
1929                                             const char *mapped_name,
1930                                             enum vfs_translate_direction direction,
1931                                             TALLOC_CTX *mem_ctx, char **pmapped_name);
1932 NTSTATUS vfs_not_implemented_fsctl(struct vfs_handle_struct *handle,
1933                                    struct files_struct *fsp,
1934                                    TALLOC_CTX *ctx,
1935                                    uint32_t function,
1936                                    uint16_t req_flags,  /* Needed for UNICODE ... */
1937                                    const uint8_t *_in_data,
1938                                    uint32_t in_len,
1939                                    uint8_t **_out_data,
1940                                    uint32_t max_out_len, uint32_t *out_len);
1941 NTSTATUS vfs_not_implemented_readdir_attr(struct vfs_handle_struct *handle,
1942                                           const struct smb_filename *fname,
1943                                           TALLOC_CTX *mem_ctx,
1944                                           struct readdir_attr_data **pattr_data);
1945 NTSTATUS vfs_not_implemented_get_dos_attributes(struct vfs_handle_struct *handle,
1946                                                 struct smb_filename *smb_fname,
1947                                                 uint32_t *dosmode);
1948 struct tevent_req *vfs_not_implemented_get_dos_attributes_send(
1949                         TALLOC_CTX *mem_ctx,
1950                         struct tevent_context *ev,
1951                         struct vfs_handle_struct *handle,
1952                         files_struct *dir_fsp,
1953                         struct smb_filename *smb_fname);
1954 NTSTATUS vfs_not_implemented_get_dos_attributes_recv(
1955                         struct tevent_req *req,
1956                         struct vfs_aio_state *aio_state,
1957                         uint32_t *dosmode);
1958 NTSTATUS vfs_not_implemented_fget_dos_attributes(struct vfs_handle_struct *handle,
1959                                                  struct files_struct *fsp,
1960                                                  uint32_t *dosmode);
1961 NTSTATUS vfs_not_implemented_set_dos_attributes(struct vfs_handle_struct *handle,
1962                                                 const struct smb_filename *smb_fname,
1963                                                 uint32_t dosmode);
1964 NTSTATUS vfs_not_implemented_fset_dos_attributes(struct vfs_handle_struct *handle,
1965                                                  struct files_struct *fsp,
1966                                                  uint32_t dosmode);
1967 NTSTATUS vfs_not_implemented_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1968                                          uint32_t security_info,
1969                                          TALLOC_CTX *mem_ctx,
1970                                          struct security_descriptor **ppdesc);
1971 NTSTATUS vfs_not_implemented_get_nt_acl(vfs_handle_struct *handle,
1972                                         const struct smb_filename *smb_fname,
1973                                         uint32_t security_info,
1974                                         TALLOC_CTX *mem_ctx,
1975                                         struct security_descriptor **ppdesc);
1976 NTSTATUS vfs_not_implemented_get_nt_acl_at(vfs_handle_struct *handle,
1977                         struct files_struct *dirfsp,
1978                         const struct smb_filename *smb_fname,
1979                         uint32_t security_info,
1980                         TALLOC_CTX *mem_ctx,
1981                         struct security_descriptor **ppdesc);
1982 NTSTATUS vfs_not_implemented_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1983                                          uint32_t security_info_sent,
1984                                          const struct security_descriptor *psd);
1985 SMB_ACL_T vfs_not_implemented_sys_acl_get_file(vfs_handle_struct *handle,
1986                                                const struct smb_filename *smb_fname,
1987                                                SMB_ACL_TYPE_T type,
1988                                                TALLOC_CTX *mem_ctx);
1989 SMB_ACL_T vfs_not_implemented_sys_acl_get_fd(vfs_handle_struct *handle,
1990                                              files_struct *fsp, TALLOC_CTX *mem_ctx);
1991 int vfs_not_implemented_sys_acl_blob_get_file(vfs_handle_struct *handle,
1992                                 const struct smb_filename *smb_fname,
1993                                 TALLOC_CTX *mem_ctx,
1994                                 char **blob_description,
1995                                 DATA_BLOB *blob);
1996 int vfs_not_implemented_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1997                                 files_struct *fsp, TALLOC_CTX *mem_ctx,
1998                                 char **blob_description, DATA_BLOB *blob);
1999 int vfs_not_implemented_sys_acl_set_file(vfs_handle_struct *handle,
2000                                 const struct smb_filename *smb_fname,
2001                                 SMB_ACL_TYPE_T acltype,
2002                                 SMB_ACL_T theacl);
2003 int vfs_not_implemented_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
2004                                        SMB_ACL_T theacl);
2005 int vfs_not_implemented_sys_acl_delete_def_file(vfs_handle_struct *handle,
2006                                         const struct smb_filename *smb_fname);
2007 ssize_t vfs_not_implemented_getxattr(vfs_handle_struct *handle,
2008                                 const struct smb_filename *smb_fname,
2009                                 const char *name,
2010                                 void *value,
2011                                 size_t size);
2012 struct tevent_req *vfs_not_implemented_getxattrat_send(
2013                         TALLOC_CTX *mem_ctx,
2014                         struct tevent_context *ev,
2015                         struct vfs_handle_struct *handle,
2016                         files_struct *dir_fsp,
2017                         const struct smb_filename *smb_fname,
2018                         const char *xattr_name,
2019                         size_t alloc_hint);
2020 ssize_t vfs_not_implemented_getxattrat_recv(struct tevent_req *req,
2021                                     struct vfs_aio_state *aio_state,
2022                                     TALLOC_CTX *mem_ctx,
2023                                     uint8_t **xattr_value);
2024 ssize_t vfs_not_implemented_fgetxattr(vfs_handle_struct *handle,
2025                               struct files_struct *fsp, const char *name,
2026                               void *value, size_t size);
2027 ssize_t vfs_not_implemented_listxattr(vfs_handle_struct *handle,
2028                                       const struct smb_filename *smb_fname,
2029                                       char *list,
2030                                       size_t size);
2031 ssize_t vfs_not_implemented_flistxattr(vfs_handle_struct *handle,
2032                                        struct files_struct *fsp, char *list,
2033                                        size_t size);
2034 int vfs_not_implemented_removexattr(vfs_handle_struct *handle,
2035                                     const struct smb_filename *smb_fname,
2036                                     const char *name);
2037 int vfs_not_implemented_fremovexattr(vfs_handle_struct *handle,
2038                                      struct files_struct *fsp, const char *name);
2039 int vfs_not_implemented_setxattr(vfs_handle_struct *handle,
2040                                  const struct smb_filename *smb_fname,
2041                                  const char *name,
2042                                  const void *value,
2043                                  size_t size,
2044                                  int flags);
2045 int vfs_not_implemented_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
2046                                   const char *name, const void *value, size_t size,
2047                                   int flags);
2048 bool vfs_not_implemented_aio_force(struct vfs_handle_struct *handle,
2049                                    struct files_struct *fsp);
2050 NTSTATUS vfs_not_implemented_audit_file(struct vfs_handle_struct *handle,
2051                                         struct smb_filename *file,
2052                                         struct security_acl *sacl,
2053                                         uint32_t access_requested,
2054                                         uint32_t access_denied);
2055 NTSTATUS vfs_not_implemented_durable_cookie(struct vfs_handle_struct *handle,
2056                                             struct files_struct *fsp,
2057                                             TALLOC_CTX *mem_ctx,
2058                                             DATA_BLOB *cookie);
2059 NTSTATUS vfs_not_implemented_durable_disconnect(struct vfs_handle_struct *handle,
2060                                                 struct files_struct *fsp,
2061                                                 const DATA_BLOB old_cookie,
2062                                                 TALLOC_CTX *mem_ctx,
2063                                                 DATA_BLOB *new_cookie);
2064 NTSTATUS vfs_not_implemented_durable_reconnect(struct vfs_handle_struct *handle,
2065                                                struct smb_request *smb1req,
2066                                                struct smbXsrv_open *op,
2067                                                const DATA_BLOB old_cookie,
2068                                                TALLOC_CTX *mem_ctx,
2069                                                struct files_struct **fsp,
2070                                                DATA_BLOB *new_cookie);
2071 #endif /* _VFS_H */