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