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