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
 263 #define SMB_VFS_INTERFACE_VERSION 40
 264
 265 /*
 266     All intercepted VFS operations must be declared as static functions inside module source
 267     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
 268     example VFS modules for more details.
 269 */
 270
 271 /* VFS operations structure */
 272
 273 struct vfs_handle_struct;
 274 struct connection_struct;
 275 struct files_struct;
 276 struct security_descriptor;
 277 struct vfs_statvfs_struct;
 278 struct smb_request;
 279 struct ea_list;
 280 struct smb_file_time;
 281 struct blocking_lock_record;
 282 struct smb_filename;
 283 struct dfs_GetDFSReferral;
 284
 285 typedef union unid_t {
 286         uid_t uid;
 287         gid_t gid;
 288 } unid_t;
 289
 290 struct fd_handle {
 291         size_t ref_count;
 292         int fd;
 293         uint64_t position_information;
 294         off_t pos;
 295         uint32_t private_options;       /* NT Create options, but we only look at
 296                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_DOS and
 297                                  * NTCREATEX_OPTIONS_PRIVATE_DENY_FCB and
 298                                  * NTCREATEX_OPTIONS_PRIVATE_DELETE_ON_CLOSE
 299                                  * for print files *only*, where
 300                                  * DELETE_ON_CLOSE is not stored in the share
 301                                  * mode database.
 302                                  */
 303         unsigned long gen_id;
 304 };
 305
 306 struct fsp_lease {
 307         size_t ref_count;
 308         struct smbd_server_connection *sconn;
 309         struct tevent_timer *timeout;
 310         struct smb2_lease lease;
 311 };
 312
 313 typedef struct files_struct {
 314         struct files_struct *next, *prev;
 315         uint64_t fnum;
 316         struct smbXsrv_open *op;
 317         struct connection_struct *conn;
 318         struct fd_handle *fh;
 319         unsigned int num_smb_operations;
 320         struct file_id file_id;
 321         uint64_t initial_allocation_size; /* Faked up initial allocation on disk. */
 322         uint16_t file_pid;
 323         uint64_t vuid; /* SMB2 compat */
 324         struct write_cache *wcp;
 325         struct timeval open_time;
 326         uint32_t access_mask;           /* NTCreateX access bits (FILE_READ_DATA etc.) */
 327         uint32_t share_access;          /* NTCreateX share constants (FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE). */
 328
 329         bool kernel_share_modes_taken;
 330
 331         bool update_write_time_triggered;
 332         struct tevent_timer *update_write_time_event;
 333         bool update_write_time_on_close;
 334         struct timespec close_write_time;
 335         bool write_time_forced;
 336
 337         int oplock_type;
 338         struct fsp_lease *lease;
 339         int sent_oplock_break;
 340         struct tevent_timer *oplock_timeout;
 341         struct lock_struct last_lock_failure;
 342         int current_lock_count; /* Count the number of outstanding locks and pending locks. */
 343
 344         bool can_lock;
 345         bool can_read;
 346         bool can_write;
 347         bool modified;
 348         bool is_directory;
 349         bool aio_write_behind;
 350         bool initial_delete_on_close; /* Only set at NTCreateX if file was created. */
 351         bool delete_on_close;
 352         uint64_t posix_flags;
 353         bool is_sparse;
 354         bool backup_intent; /* Handle was successfully opened with backup intent
 355                                 and opener has privilege to do so. */
 356         bool use_ofd_locks; /* Are we using open file description locks ? */
 357         struct smb_filename *fsp_name;
 358         uint32_t name_hash;             /* Jenkins hash of full pathname. */
 359         uint64_t mid;                   /* Mid of the operation that created us. */
 360
 361         struct vfs_fsp_data *vfs_extension;
 362         struct fake_file_handle *fake_file_handle;
 363
 364         struct notify_change_buf *notify;
 365
 366         struct files_struct *base_fsp; /* placeholder for delete on close */
 367
 368         /*
 369          * Read-only cached brlock record, thrown away when the
 370          * brlock.tdb seqnum changes. This avoids fetching data from
 371          * the brlock.tdb on every read/write call.
 372          */
 373         int brlock_seqnum;
 374         struct byte_range_lock *brlock_rec;
 375
 376         struct dptr_struct *dptr;
 377
 378         /* if not NULL, means this is a print file */
 379         struct print_file_data *print_file;
 380
 381         unsigned num_aio_requests;
 382         struct tevent_req **aio_requests;
 383
 384         /*
 385          * If a close request comes in while we still have aio_requests
 386          * around, we need to hold back the close. When all aio_requests are
 387          * done, the aio completion routines need tevent_wait_done() on
 388          * this. A bit ugly, but before we have close_file() fully async
 389          * possibly the simplest approach. Thanks, Jeremy for the idea.
 390          */
 391         struct tevent_req *deferred_close;
 392 } files_struct;
 393
 394 #define FSP_POSIX_FLAGS_OPEN            0x01
 395 #define FSP_POSIX_FLAGS_RENAME          0x02
 396 #define FSP_POSIX_FLAGS_PATHNAMES       0x04
 397
 398 #define FSP_POSIX_FLAGS_ALL                     \
 399         (FSP_POSIX_FLAGS_OPEN |                 \
 400          FSP_POSIX_FLAGS_PATHNAMES |            \
 401          FSP_POSIX_FLAGS_RENAME)
 402
 403 struct vuid_cache_entry {
 404         struct auth_session_info *session_info;
 405         struct tevent_context *user_ev_ctx;
 406         uint64_t vuid; /* SMB2 compat */
 407         bool read_only;
 408         uint32_t share_access;
 409 };
 410
 411 struct vuid_cache {
 412         unsigned int next_entry;
 413         struct vuid_cache_entry array[VUID_CACHE_SIZE];
 414 };
 415
 416 typedef struct {
 417         char *name;
 418         bool is_wild;
 419 } name_compare_entry;
 420
 421 struct share_params {
 422         int service;
 423 };
 424
 425 typedef struct connection_struct {
 426         struct connection_struct *next, *prev;
 427         struct smbd_server_connection *sconn; /* can be NULL */
 428         struct smbXsrv_tcon *tcon; /* can be NULL */
 429         uint32_t cnum; /* an index passed over the wire */
 430         struct share_params *params;
 431         bool force_user;
 432         struct vuid_cache *vuid_cache;
 433         bool printer;
 434         bool ipc;
 435         bool read_only; /* Attributes for the current user of the share. */
 436         uint32_t share_access;
 437         /* Does this filesystem honor
 438            sub second timestamps on files
 439            and directories when setting time ? */
 440         enum timestamp_set_resolution ts_res;
 441         char *connectpath;
 442         char *origpath;
 443         struct smb_filename *cwd_fname; /* Working directory. */
 444         bool tcon_done;
 445
 446         struct vfs_handle_struct *vfs_handles;          /* for the new plugins */
 447
 448         /*
 449          * This represents the user information on this connection. Depending
 450          * on the vuid using this tid, this might change per SMB request.
 451          */
 452         struct auth_session_info *session_info;
 453         struct tevent_context *user_ev_ctx;
 454
 455         /*
 456          * If the "force group" parameter is set, this is the primary gid that
 457          * may be used in the users token, depending on the vuid using this tid.
 458          */
 459         gid_t force_group_gid;
 460
 461         uint64_t vuid; /* vuid of user who *opened* this connection, or UID_FIELD_INVALID */
 462
 463         time_t lastused;
 464         time_t lastused_count;
 465         int num_files_open;
 466         unsigned int num_smb_operations; /* Count of smb operations on this tree. */
 467         int encrypt_level;
 468         bool encrypted_tid;
 469
 470         /* Semantics requested by the client or forced by the server config. */
 471         bool case_sensitive;
 472         bool case_preserve;
 473         bool short_case_preserve;
 474
 475         /* Semantics provided by the underlying filesystem. */
 476         int fs_capabilities;
 477         /* Device number of the directory of the share mount.
 478            Used to ensure unique FileIndex returns. */
 479         SMB_DEV_T base_share_dev;
 480
 481         name_compare_entry *hide_list; /* Per-share list of files to return as hidden. */
 482         name_compare_entry *veto_list; /* Per-share list of files to veto (never show). */
 483         name_compare_entry *veto_oplock_list; /* Per-share list of files to refuse oplocks on. */
 484         name_compare_entry *aio_write_behind_list; /* Per-share list of files to use aio write behind on. */
 485         struct trans_state *pending_trans;
 486
 487         struct rpc_pipe_client *spoolss_pipe;
 488
 489 } connection_struct;
 490
 491 struct smbd_smb2_request;
 492 struct privilege_paths;
 493
 494 struct smb_request {
 495         uint8_t cmd;
 496         uint16_t flags2;
 497         uint16_t smbpid;
 498         uint64_t mid; /* For compatibility with SMB2. */
 499         uint32_t seqnum;
 500         uint64_t vuid; /* For compatibility with SMB2. */
 501         uint32_t tid;
 502         uint8_t  wct;
 503         const uint16_t *vwv;
 504         uint16_t buflen;
 505         const uint8_t *buf;
 506         const uint8_t *inbuf;
 507
 508         /*
 509          * Async handling in the main smb processing loop is directed by
 510          * outbuf: reply_xxx routines indicate sync behaviour by putting their
 511          * reply into "outbuf". If they leave it as NULL, they take care of it
 512          * themselves, possibly later.
 513          *
 514          * If async handling is wanted, the reply_xxx routine must make sure
 515          * that it talloc_move()s the smb_req somewhere else.
 516          */
 517         uint8_t *outbuf;
 518
 519         size_t unread_bytes;
 520         bool encrypted;
 521         connection_struct *conn;
 522         struct smbd_server_connection *sconn;
 523         struct smbXsrv_connection *xconn;
 524         struct smb_perfcount_data pcd;
 525
 526         /*
 527          * Chained request handling
 528          */
 529         struct files_struct *chain_fsp;
 530
 531         /*
 532          * state information for async smb handling
 533          */
 534         void *async_priv;
 535
 536         /*
 537          * Back pointer to smb2 request.
 538          */
 539         struct smbd_smb2_request *smb2req;
 540
 541         /*
 542          * Pathnames used if request done
 543          * under privilege.
 544          */
 545         struct privilege_paths *priv_paths;
 546
 547         /*
 548          * Request list for chained requests, we're part of it.
 549          */
 550         struct smb_request **chain;
 551
 552         struct timeval request_time;
 553
 554         bool posix_pathnames;
 555 };
 556
 557 /*
 558  * Info about an alternate data stream
 559  */
 560
 561 struct stream_struct {
 562         off_t size;
 563         off_t alloc_size;
 564         char *name;
 565 };
 566
 567 /* time info */
 568 struct smb_file_time {
 569         struct timespec mtime;
 570         struct timespec atime;
 571         struct timespec ctime;
 572         struct timespec create_time;
 573 };
 574
 575 /*
 576  * smb_filename
 577  */
 578 struct smb_filename {
 579         char *base_name;
 580         char *stream_name;
 581         char *original_lcomp;
 582         uint32_t flags;
 583         SMB_STRUCT_STAT st;
 584 };
 585
 586 /*
 587  * smb_filename flags. Define in terms of the FSP_POSIX_FLAGS_XX
 588  * to keep the numeric values consistent.
 589  */
 590
 591 #define SMB_FILENAME_POSIX_PATH         FSP_POSIX_FLAGS_PATHNAMES
 592
 593 #define VFS_FIND(__fn__) while (handle->fns->__fn__##_fn==NULL) { \
 594                                 handle = handle->next; \
 595                          }
 596
 597 enum vfs_translate_direction {
 598         vfs_translate_to_unix = 0,
 599         vfs_translate_to_windows
 600 };
 601
 602 enum vfs_fallocate_flags {
 603         VFS_FALLOCATE_FL_KEEP_SIZE              = 0x0001,
 604         VFS_FALLOCATE_FL_PUNCH_HOLE             = 0x0002,
 605 };
 606
 607 struct vfs_aio_state {
 608         int error;
 609         uint64_t duration;
 610 };
 611
 612 /*
 613     Available VFS operations. These values must be in sync with vfs_ops struct
 614     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
 615     In particular, if new operations are added to vfs_ops, appropriate constants
 616     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
 617 */
 618 struct shadow_copy_data;
 619
 620 struct vfs_fn_pointers {
 621         /* Disk operations */
 622
 623         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
 624         void (*disconnect_fn)(struct vfs_handle_struct *handle);
 625         uint64_t (*disk_free_fn)(struct vfs_handle_struct *handle,
 626                                 const struct smb_filename *smb_fname,
 627                                 uint64_t *bsize,
 628                                 uint64_t *dfree,
 629                                 uint64_t *dsize);
 630         int (*get_quota_fn)(struct vfs_handle_struct *handle,
 631                                 const struct smb_filename *smb_fname,
 632                                 enum SMB_QUOTA_TYPE qtype,
 633                                 unid_t id,
 634                                 SMB_DISK_QUOTA *qt);
 635         int (*set_quota_fn)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 636         int (*get_shadow_copy_data_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, struct shadow_copy_data *shadow_copy_data, bool labels);
 637         int (*statvfs_fn)(struct vfs_handle_struct *handle,
 638                                 const struct smb_filename *smb_fname,
 639                                 struct vfs_statvfs_struct *statbuf);
 640         uint32_t (*fs_capabilities_fn)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
 641
 642         /*
 643          * Note: that "struct dfs_GetDFSReferral *r"
 644          * needs to be a valid TALLOC_CTX
 645          */
 646         NTSTATUS (*get_dfs_referrals_fn)(struct vfs_handle_struct *handle,
 647                                          struct dfs_GetDFSReferral *r);
 648
 649         /* Directory operations */
 650
 651         DIR *(*opendir_fn)(struct vfs_handle_struct *handle,
 652                                         const struct smb_filename *smb_fname,
 653                                         const char *mask,
 654                                         uint32_t attributes);
 655         DIR *(*fdopendir_fn)(struct vfs_handle_struct *handle, files_struct *fsp, const char *mask, uint32_t attributes);
 656         struct dirent *(*readdir_fn)(struct vfs_handle_struct *handle,
 657                                          DIR *dirp,
 658                                          SMB_STRUCT_STAT *sbuf);
 659         void (*seekdir_fn)(struct vfs_handle_struct *handle, DIR *dirp, long offset);
 660         long (*telldir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
 661         void (*rewind_dir_fn)(struct vfs_handle_struct *handle, DIR *dirp);
 662         int (*mkdir_fn)(struct vfs_handle_struct *handle,
 663                         const struct smb_filename *smb_fname,
 664                         mode_t mode);
 665         int (*rmdir_fn)(struct vfs_handle_struct *handle,
 666                         const struct smb_filename *smb_fname);
 667         int (*closedir_fn)(struct vfs_handle_struct *handle, DIR *dir);
 668
 669         /* File operations */
 670
 671         int (*open_fn)(struct vfs_handle_struct *handle,
 672                        struct smb_filename *smb_fname, files_struct *fsp,
 673                        int flags, mode_t mode);
 674         NTSTATUS (*create_file_fn)(struct vfs_handle_struct *handle,
 675                                    struct smb_request *req,
 676                                    uint16_t root_dir_fid,
 677                                    struct smb_filename *smb_fname,
 678                                    uint32_t access_mask,
 679                                    uint32_t share_access,
 680                                    uint32_t create_disposition,
 681                                    uint32_t create_options,
 682                                    uint32_t file_attributes,
 683                                    uint32_t oplock_request,
 684                                    struct smb2_lease *lease,
 685                                    uint64_t allocation_size,
 686                                    uint32_t private_flags,
 687                                    struct security_descriptor *sd,
 688                                    struct ea_list *ea_list,
 689                                    files_struct **result,
 690                                    int *pinfo,
 691                                    const struct smb2_create_blobs *in_context_blobs,
 692                                    struct smb2_create_blobs *out_context_blobs);
 693         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 694         ssize_t (*pread_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, off_t offset);
 695         struct tevent_req *(*pread_send_fn)(struct vfs_handle_struct *handle,
 696                                             TALLOC_CTX *mem_ctx,
 697                                             struct tevent_context *ev,
 698                                             struct files_struct *fsp,
 699                                             void *data,
 700                                             size_t n, off_t offset);
 701         ssize_t (*pread_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
 702         ssize_t (*pwrite_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, off_t offset);
 703         struct tevent_req *(*pwrite_send_fn)(struct vfs_handle_struct *handle,
 704                                              TALLOC_CTX *mem_ctx,
 705                                              struct tevent_context *ev,
 706                                              struct files_struct *fsp,
 707                                              const void *data,
 708                                              size_t n, off_t offset);
 709         ssize_t (*pwrite_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
 710         off_t (*lseek_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset, int whence);
 711         ssize_t (*sendfile_fn)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, off_t offset, size_t count);
 712         ssize_t (*recvfile_fn)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, off_t offset, size_t count);
 713         int (*rename_fn)(struct vfs_handle_struct *handle,
 714                          const struct smb_filename *smb_fname_src,
 715                          const struct smb_filename *smb_fname_dst);
 716         struct tevent_req *(*fsync_send_fn)(struct vfs_handle_struct *handle,
 717                                             TALLOC_CTX *mem_ctx,
 718                                             struct tevent_context *ev,
 719                                             struct files_struct *fsp);
 720         int (*fsync_recv_fn)(struct tevent_req *req, struct vfs_aio_state *state);
 721         int (*stat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
 722         int (*fstat_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 723         int (*lstat_fn)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
 724         uint64_t (*get_alloc_size_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
 725         int (*unlink_fn)(struct vfs_handle_struct *handle,
 726                          const struct smb_filename *smb_fname);
 727         int (*chmod_fn)(struct vfs_handle_struct *handle,
 728                         const struct smb_filename *smb_fname,
 729                         mode_t mode);
 730         int (*fchmod_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 731         int (*chown_fn)(struct vfs_handle_struct *handle,
 732                         const struct smb_filename *smb_fname,
 733                         uid_t uid,
 734                         gid_t gid);
 735         int (*fchown_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
 736         int (*lchown_fn)(struct vfs_handle_struct *handle,
 737                         const struct smb_filename *smb_fname,
 738                         uid_t uid,
 739                         gid_t gid);
 740         int (*chdir_fn)(struct vfs_handle_struct *handle,
 741                          const struct smb_filename *smb_fname);
 742         struct smb_filename *(*getwd_fn)(struct vfs_handle_struct *handle,
 743                                 TALLOC_CTX *mem_ctx);
 744         int (*ntimes_fn)(struct vfs_handle_struct *handle,
 745                          const struct smb_filename *smb_fname,
 746                          struct smb_file_time *ft);
 747         int (*ftruncate_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t offset);
 748         int (*fallocate_fn)(struct vfs_handle_struct *handle,
 749                             struct files_struct *fsp,
 750                             uint32_t mode,
 751                             off_t offset,
 752                             off_t len);
 753         bool (*lock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, off_t offset, off_t count, int type);
 754         int (*kernel_flock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
 755                                uint32_t share_mode, uint32_t access_mask);
 756         int (*linux_setlease_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
 757         bool (*getlock_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid);
 758         int (*symlink_fn)(struct vfs_handle_struct *handle,
 759                                 const char *link_contents,
 760                                 const struct smb_filename *new_smb_fname);
 761         int (*readlink_fn)(struct vfs_handle_struct *handle,
 762                                 const struct smb_filename *smb_fname,
 763                                 char *buf,
 764                                 size_t bufsiz);
 765         int (*link_fn)(struct vfs_handle_struct *handle,
 766                                 const struct smb_filename *old_smb_fname,
 767                                 const struct smb_filename *new_smb_fname);
 768         int (*mknod_fn)(struct vfs_handle_struct *handle,
 769                                 const struct smb_filename *smb_fname,
 770                                 mode_t mode,
 771                                 SMB_DEV_T dev);
 772         struct smb_filename *(*realpath_fn)(struct vfs_handle_struct *handle,
 773                                 TALLOC_CTX *ctx,
 774                                 const struct smb_filename *smb_fname);
 775         int (*chflags_fn)(struct vfs_handle_struct *handle,
 776                                 const struct smb_filename *smb_fname,
 777                                 unsigned int flags);
 778         struct file_id (*file_id_create_fn)(struct vfs_handle_struct *handle,
 779                                             const SMB_STRUCT_STAT *sbuf);
 780         struct tevent_req *(*offload_read_send_fn)(TALLOC_CTX *mem_ctx,
 781                                                    struct tevent_context *ev,
 782                                                    struct vfs_handle_struct *handle,
 783                                                    struct files_struct *fsp,
 784                                                    uint32_t fsctl,
 785                                                    uint32_t ttl,
 786                                                    off_t offset,
 787                                                    size_t to_copy);
 788         NTSTATUS (*offload_read_recv_fn)(struct tevent_req *req,
 789                                          struct vfs_handle_struct *handle,
 790                                          TALLOC_CTX *mem_ctx,
 791                                          DATA_BLOB *token_blob);
 792         struct tevent_req *(*offload_write_send_fn)(struct vfs_handle_struct *handle,
 793                                                     TALLOC_CTX *mem_ctx,
 794                                                     struct tevent_context *ev,
 795                                                     uint32_t fsctl,
 796                                                     DATA_BLOB *token,
 797                                                     off_t transfer_offset,
 798                                                     struct files_struct *dest_fsp,
 799                                                     off_t dest_off,
 800                                                     off_t to_copy);
 801         NTSTATUS (*offload_write_recv_fn)(struct vfs_handle_struct *handle,
 802                                           struct tevent_req *req,
 803                                           off_t *copied);
 804         NTSTATUS (*get_compression_fn)(struct vfs_handle_struct *handle,
 805                                        TALLOC_CTX *mem_ctx,
 806                                        struct files_struct *fsp,
 807                                        struct smb_filename *smb_fname,
 808                                        uint16_t *_compression_fmt);
 809         NTSTATUS (*set_compression_fn)(struct vfs_handle_struct *handle,
 810                                        TALLOC_CTX *mem_ctx,
 811                                        struct files_struct *fsp,
 812                                        uint16_t compression_fmt);
 813         NTSTATUS (*snap_check_path_fn)(struct vfs_handle_struct *handle,
 814                                        TALLOC_CTX *mem_ctx,
 815                                        const char *service_path,
 816                                        char **base_volume);
 817         NTSTATUS (*snap_create_fn)(struct vfs_handle_struct *handle,
 818                                    TALLOC_CTX *mem_ctx,
 819                                    const char *base_volume,
 820                                    time_t *tstamp,
 821                                    bool rw,
 822                                    char **base_path,
 823                                    char **snap_path);
 824         NTSTATUS (*snap_delete_fn)(struct vfs_handle_struct *handle,
 825                                    TALLOC_CTX *mem_ctx,
 826                                    char *base_path,
 827                                    char *snap_path);
 828
 829         NTSTATUS (*streaminfo_fn)(struct vfs_handle_struct *handle,
 830                                   struct files_struct *fsp,
 831                                   const struct smb_filename *smb_fname,
 832                                   TALLOC_CTX *mem_ctx,
 833                                   unsigned int *num_streams,
 834                                   struct stream_struct **streams);
 835
 836         int (*get_real_filename_fn)(struct vfs_handle_struct *handle,
 837                                     const char *path,
 838                                     const char *name,
 839                                     TALLOC_CTX *mem_ctx,
 840                                     char **found_name);
 841
 842         const char *(*connectpath_fn)(struct vfs_handle_struct *handle,
 843                                       const struct smb_filename *smb_fname);
 844
 845         NTSTATUS (*brl_lock_windows_fn)(struct vfs_handle_struct *handle,
 846                                         struct byte_range_lock *br_lck,
 847                                         struct lock_struct *plock,
 848                                         bool blocking_lock);
 849
 850         bool (*brl_unlock_windows_fn)(struct vfs_handle_struct *handle,
 851                                       struct messaging_context *msg_ctx,
 852                                       struct byte_range_lock *br_lck,
 853                                       const struct lock_struct *plock);
 854
 855         bool (*brl_cancel_windows_fn)(struct vfs_handle_struct *handle,
 856                                       struct byte_range_lock *br_lck,
 857                                       struct lock_struct *plock);
 858
 859         bool (*strict_lock_check_fn)(struct vfs_handle_struct *handle,
 860                                      struct files_struct *fsp,
 861                                      struct lock_struct *plock);
 862
 863         NTSTATUS (*translate_name_fn)(struct vfs_handle_struct *handle,
 864                                       const char *name,
 865                                       enum vfs_translate_direction direction,
 866                                       TALLOC_CTX *mem_ctx,
 867                                       char **mapped_name);
 868
 869         NTSTATUS (*fsctl_fn)(struct vfs_handle_struct *handle,
 870                              struct files_struct *fsp,
 871                              TALLOC_CTX *ctx,
 872                              uint32_t function,
 873                              uint16_t req_flags,
 874                              const uint8_t *_in_data,
 875                              uint32_t in_len,
 876                              uint8_t **_out_data,
 877                              uint32_t max_out_len,
 878                              uint32_t *out_len);
 879
 880         NTSTATUS (*get_dos_attributes_fn)(struct vfs_handle_struct *handle,
 881                                           struct smb_filename *smb_fname,
 882                                           uint32_t *dosmode);
 883
 884         NTSTATUS (*fget_dos_attributes_fn)(struct vfs_handle_struct *handle,
 885                                            struct files_struct *fsp,
 886                                            uint32_t *dosmode);
 887
 888         NTSTATUS (*set_dos_attributes_fn)(struct vfs_handle_struct *handle,
 889                                           const struct smb_filename *smb_fname,
 890                                           uint32_t dosmode);
 891
 892         NTSTATUS (*fset_dos_attributes_fn)(struct vfs_handle_struct *hande,
 893                                            struct files_struct *fsp,
 894                                            uint32_t dosmode);
 895
 896         struct tevent_req *(*get_dos_attributes_send_fn)(
 897                                 TALLOC_CTX *mem_ctx,
 898                                 struct tevent_context *ev,
 899                                 struct vfs_handle_struct *handle,
 900                                 files_struct *dir_fsp,
 901                                 struct smb_filename *smb_fname);
 902
 903         NTSTATUS (*get_dos_attributes_recv_fn)(
 904                                 struct tevent_req *req,
 905                                 struct vfs_aio_state *aio_state,
 906                                 uint32_t *dosmode);
 907
 908         /* NT ACL operations. */
 909
 910         NTSTATUS (*fget_nt_acl_fn)(struct vfs_handle_struct *handle,
 911                                    struct files_struct *fsp,
 912                                    uint32_t security_info,
 913                                    TALLOC_CTX *mem_ctx,
 914                                    struct security_descriptor **ppdesc);
 915         NTSTATUS (*get_nt_acl_fn)(struct vfs_handle_struct *handle,
 916                                   const struct smb_filename *smb_fname,
 917                                   uint32_t security_info,
 918                                    TALLOC_CTX *mem_ctx,
 919                                   struct security_descriptor **ppdesc);
 920         NTSTATUS (*fset_nt_acl_fn)(struct vfs_handle_struct *handle,
 921                                    struct files_struct *fsp,
 922                                    uint32_t security_info_sent,
 923                                    const struct security_descriptor *psd);
 924
 925         NTSTATUS (*audit_file_fn)(struct vfs_handle_struct *handle,
 926                                   struct smb_filename *file,
 927                                   struct security_acl *sacl,
 928                                   uint32_t access_requested,
 929                                   uint32_t access_denied);
 930
 931         /* POSIX ACL operations. */
 932
 933         SMB_ACL_T (*sys_acl_get_file_fn)(struct vfs_handle_struct *handle,
 934                                          const struct smb_filename *smb_fname,
 935                                          SMB_ACL_TYPE_T type,
 936                                          TALLOC_CTX *mem_ctx);
 937         SMB_ACL_T (*sys_acl_get_fd_fn)(struct vfs_handle_struct *handle,
 938                                        struct files_struct *fsp,
 939                                        TALLOC_CTX *mem_ctx);
 940         int (*sys_acl_blob_get_file_fn)(struct vfs_handle_struct *handle,
 941                                         const struct smb_filename *smb_fname,
 942                                         TALLOC_CTX *mem_ctx,
 943                                         char **blob_description,
 944                                         DATA_BLOB *blob);
 945         int (*sys_acl_blob_get_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp,
 946                                       TALLOC_CTX *mem_ctx, char **blob_description,
 947                                       DATA_BLOB *blob);
 948         int (*sys_acl_set_file_fn)(struct vfs_handle_struct *handle,
 949                                         const struct smb_filename *smb_fname,
 950                                         SMB_ACL_TYPE_T acltype,
 951                                         SMB_ACL_T theacl);
 952         int (*sys_acl_set_fd_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
 953         int (*sys_acl_delete_def_file_fn)(struct vfs_handle_struct *handle,
 954                                         const struct smb_filename *smb_fname);
 955
 956         /* EA operations. */
 957         ssize_t (*getxattr_fn)(struct vfs_handle_struct *handle,
 958                                         const struct smb_filename *smb_fname,
 959                                         const char *name,
 960                                         void *value,
 961                                         size_t size);
 962         struct tevent_req *(*getxattrat_send_fn)(
 963                                 TALLOC_CTX *mem_ctx,
 964                                 struct tevent_context *ev,
 965                                 struct vfs_handle_struct *handle,
 966                                 files_struct *dir_fsp,
 967                                 const struct smb_filename *smb_fname,
 968                                 const char *xattr_name,
 969                                 size_t alloc_hint);
 970         ssize_t (*getxattrat_recv_fn)(struct tevent_req *req,
 971                                       struct vfs_aio_state *aio_state,
 972                                       TALLOC_CTX *mem_ctx,
 973                                       uint8_t **xattr_value);
 974         ssize_t (*fgetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
 975         ssize_t (*listxattr_fn)(struct vfs_handle_struct *handle,
 976                                         const struct smb_filename *smb_fname,
 977                                         char *list,
 978                                         size_t size);
 979         ssize_t (*flistxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
 980         int (*removexattr_fn)(struct vfs_handle_struct *handle,
 981                                         const struct smb_filename *smb_fname,
 982                                         const char *name);
 983         int (*fremovexattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
 984         int (*setxattr_fn)(struct vfs_handle_struct *handle,
 985                                         const struct smb_filename *smb_fname,
 986                                         const char *name,
 987                                         const void *value,
 988                                         size_t size,
 989                                         int flags);
 990         int (*fsetxattr_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
 991
 992         /* aio operations */
 993         bool (*aio_force_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 994
 995         /* durable handle operations */
 996         NTSTATUS (*durable_cookie_fn)(struct vfs_handle_struct *handle,
 997                                       struct files_struct *fsp,
 998                                       TALLOC_CTX *mem_ctx,
 999                                       DATA_BLOB *cookie);
1000         NTSTATUS (*durable_disconnect_fn)(struct vfs_handle_struct *handle,
1001                                           struct files_struct *fsp,
1002                                           const DATA_BLOB old_cookie,
1003                                           TALLOC_CTX *mem_ctx,
1004                                           DATA_BLOB *new_cookie);
1005         NTSTATUS (*durable_reconnect_fn)(struct vfs_handle_struct *handle,
1006                                          struct smb_request *smb1req,
1007                                          struct smbXsrv_open *op,
1008                                          const DATA_BLOB old_cookie,
1009                                          TALLOC_CTX *mem_ctx,
1010                                          struct files_struct **fsp,
1011                                          DATA_BLOB *new_cookie);
1012
1013         NTSTATUS (*readdir_attr_fn)(struct vfs_handle_struct *handle,
1014                                     const struct smb_filename *fname,
1015                                     TALLOC_CTX *mem_ctx,
1016                                     struct readdir_attr_data **attr_data);
1017 };
1018
1019 /*
1020     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
1021     which describes all operations this module is willing to intercept.
1022     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
1023     using this information.
1024 */
1025
1026 typedef struct vfs_handle_struct {
1027         struct vfs_handle_struct  *next, *prev;
1028         const char *param;
1029         struct connection_struct *conn;
1030         const struct vfs_fn_pointers *fns;
1031         void *data;
1032         void (*free_data)(void **data);
1033 } vfs_handle_struct;
1034
1035
1036 typedef struct vfs_statvfs_struct {
1037         /* For undefined recommended transfer size return -1 in that field */
1038         uint32_t OptimalTransferSize;  /* bsize on some os, iosize on other os */
1039         uint32_t BlockSize;
1040
1041         /*
1042          The next three fields are in terms of the block size.
1043          (above). If block size is unknown, 4096 would be a
1044          reasonable block size for a server to report.
1045          Note that returning the blocks/blocksavail removes need
1046          to make a second call (to QFSInfo level 0x103 to get this info.
1047          UserBlockAvail is typically less than or equal to BlocksAvail,
1048          if no distinction is made return the same value in each.
1049         */
1050
1051         uint64_t TotalBlocks;
1052         uint64_t BlocksAvail;       /* bfree */
1053         uint64_t UserBlocksAvail;   /* bavail */
1054
1055         /* For undefined Node fields or FSID return -1 */
1056         uint64_t TotalFileNodes;
1057         uint64_t FreeFileNodes;
1058         uint64_t FsIdentifier;   /* fsid */
1059         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
1060         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
1061
1062         int FsCapabilities;
1063 } vfs_statvfs_struct;
1064
1065 /* Add a new FSP extension of the given type. Returns a pointer to the
1066  * extenstion data.
1067  */
1068 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
1069     (type *)vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
1070
1071 /* Return a pointer to the existing FSP extension data. */
1072 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
1073     vfs_fetch_fsp_extension(handle, (fsp))
1074
1075 /* Return the talloc context associated with an FSP extension. */
1076 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
1077     vfs_memctx_fsp_extension(handle, (fsp))
1078
1079 /* Remove and destroy an FSP extension. */
1080 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
1081     vfs_remove_fsp_extension((handle), (fsp))
1082
1083 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
1084         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
1085                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",__FUNCTION__)); \
1086                 ret; \
1087         } \
1088 }
1089
1090 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
1091         if (!(handle)) { \
1092                 DEBUG(0,("%s() failed to set handle->data!\n",__FUNCTION__)); \
1093                 ret; \
1094         } else { \
1095                 if ((handle)->free_data) { \
1096                         (handle)->free_data(&(handle)->data); \
1097                 } \
1098                 (handle)->data = (void *)datap; \
1099                 (handle)->free_data = free_fn; \
1100         } \
1101 }
1102
1103 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
1104         if ((handle) && (handle)->free_data) { \
1105                 (handle)->free_data(&(handle)->data); \
1106         } \
1107 }
1108
1109 /* Check whether module-specific data handle was already allocated or not */
1110 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
1111
1112 #define SMB_VFS_OP(x) ((void *) x)
1113
1114 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
1115
1116 #include "vfs_macros.h"
1117
1118 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
1119                          const char *service, const char *user);
1120 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
1121 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
1122                                 const struct smb_filename *smb_filename,
1123                                 uint64_t *bsize,
1124                                 uint64_t *dfree,
1125                                 uint64_t *dsize);
1126 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
1127                                 const struct smb_filename *smb_filename,
1128                                 enum SMB_QUOTA_TYPE qtype,
1129                                 unid_t id,
1130                                 SMB_DISK_QUOTA *qt);
1131 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
1132                            enum SMB_QUOTA_TYPE qtype, unid_t id,
1133                            SMB_DISK_QUOTA *qt);
1134 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
1135                                       struct files_struct *fsp,
1136                                       struct shadow_copy_data *shadow_copy_data,
1137                                       bool labels);
1138 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle,
1139                         const struct smb_filename *smb_fname,
1140                         struct vfs_statvfs_struct *statbuf);
1141 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
1142                                       enum timestamp_set_resolution *p_ts_res);
1143 /*
1144  * Note: that "struct dfs_GetDFSReferral *r" needs to be a valid TALLOC_CTX
1145  */
1146 NTSTATUS smb_vfs_call_get_dfs_referrals(struct vfs_handle_struct *handle,
1147                                         struct dfs_GetDFSReferral *r);
1148 DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
1149                         const struct smb_filename *smb_fname,
1150                         const char *mask,
1151                         uint32_t attributes);
1152 DIR *smb_vfs_call_fdopendir(struct vfs_handle_struct *handle,
1153                                         struct files_struct *fsp,
1154                                         const char *mask,
1155                                         uint32_t attributes);
1156 struct dirent *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
1157                                         DIR *dirp,
1158                                         SMB_STRUCT_STAT *sbuf);
1159 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
1160                           DIR *dirp, long offset);
1161 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
1162                           DIR *dirp);
1163 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
1164                              DIR *dirp);
1165 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle,
1166                         const struct smb_filename *smb_fname,
1167                         mode_t mode);
1168 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle,
1169                         const struct smb_filename *smb_fname);
1170 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
1171                           DIR *dir);
1172 int smb_vfs_call_open(struct vfs_handle_struct *handle,
1173                       struct smb_filename *smb_fname, struct files_struct *fsp,
1174                       int flags, mode_t mode);
1175 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
1176                                   struct smb_request *req,
1177                                   uint16_t root_dir_fid,
1178                                   struct smb_filename *smb_fname,
1179                                   uint32_t access_mask,
1180                                   uint32_t share_access,
1181                                   uint32_t create_disposition,
1182                                   uint32_t create_options,
1183                                   uint32_t file_attributes,
1184                                   uint32_t oplock_request,
1185                                   struct smb2_lease *lease,
1186                                   uint64_t allocation_size,
1187                                   uint32_t private_flags,
1188                                   struct security_descriptor *sd,
1189                                   struct ea_list *ea_list,
1190                                   files_struct **result,
1191                                   int *pinfo,
1192                                   const struct smb2_create_blobs *in_context_blobs,
1193                                   struct smb2_create_blobs *out_context_blobs);
1194 int smb_vfs_call_close(struct vfs_handle_struct *handle,
1195                        struct files_struct *fsp);
1196 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
1197                            struct files_struct *fsp, void *data, size_t n,
1198                            off_t offset);
1199 struct tevent_req *smb_vfs_call_pread_send(struct vfs_handle_struct *handle,
1200                                            TALLOC_CTX *mem_ctx,
1201                                            struct tevent_context *ev,
1202                                            struct files_struct *fsp,
1203                                            void *data,
1204                                            size_t n, off_t offset);
1205 ssize_t SMB_VFS_PREAD_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1206
1207 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
1208                             struct files_struct *fsp, const void *data,
1209                             size_t n, off_t offset);
1210 struct tevent_req *smb_vfs_call_pwrite_send(struct vfs_handle_struct *handle,
1211                                             TALLOC_CTX *mem_ctx,
1212                                             struct tevent_context *ev,
1213                                             struct files_struct *fsp,
1214                                             const void *data,
1215                                             size_t n, off_t offset);
1216 ssize_t SMB_VFS_PWRITE_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1217
1218 off_t smb_vfs_call_lseek(struct vfs_handle_struct *handle,
1219                              struct files_struct *fsp, off_t offset,
1220                              int whence);
1221 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
1222                               files_struct *fromfsp, const DATA_BLOB *header,
1223                               off_t offset, size_t count);
1224 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
1225                               files_struct *tofsp, off_t offset,
1226                               size_t count);
1227 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
1228                         const struct smb_filename *smb_fname_src,
1229                         const struct smb_filename *smb_fname_dst);
1230
1231 struct tevent_req *smb_vfs_call_fsync_send(struct vfs_handle_struct *handle,
1232                                            TALLOC_CTX *mem_ctx,
1233                                            struct tevent_context *ev,
1234                                            struct files_struct *fsp);
1235 int SMB_VFS_FSYNC_RECV(struct tevent_req *req, struct vfs_aio_state *state);
1236
1237 int smb_vfs_fsync_sync(files_struct *fsp);
1238 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
1239                       struct smb_filename *smb_fname);
1240 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
1241                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
1242 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
1243                        struct smb_filename *smb_filename);
1244 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
1245                                      struct files_struct *fsp,
1246                                      const SMB_STRUCT_STAT *sbuf);
1247 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
1248                         const struct smb_filename *smb_fname);
1249 int smb_vfs_call_chmod(struct vfs_handle_struct *handle,
1250                         const struct smb_filename *smb_fname,
1251                         mode_t mode);
1252 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
1253                         struct files_struct *fsp, mode_t mode);
1254 int smb_vfs_call_chown(struct vfs_handle_struct *handle,
1255                         const struct smb_filename *smb_fname,
1256                         uid_t uid,
1257                         gid_t gid);
1258 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
1259                         struct files_struct *fsp, uid_t uid, gid_t gid);
1260 int smb_vfs_call_lchown(struct vfs_handle_struct *handle,
1261                         const struct smb_filename *smb_fname,
1262                         uid_t uid,
1263                         gid_t gid);
1264 int smb_vfs_call_chdir(struct vfs_handle_struct *handle,
1265                         const struct smb_filename *smb_fname);
1266 struct smb_filename *smb_vfs_call_getwd(struct vfs_handle_struct *handle,
1267                                 TALLOC_CTX *ctx);
1268 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
1269                         const struct smb_filename *smb_fname,
1270                         struct smb_file_time *ft);
1271 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
1272                            struct files_struct *fsp, off_t offset);
1273 int smb_vfs_call_fallocate(struct vfs_handle_struct *handle,
1274                            struct files_struct *fsp,
1275                            uint32_t mode,
1276                            off_t offset,
1277                            off_t len);
1278 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
1279                        struct files_struct *fsp, int op, off_t offset,
1280                        off_t count, int type);
1281 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
1282                               struct files_struct *fsp, uint32_t share_mode,
1283                               uint32_t access_mask);
1284 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
1285                                 struct files_struct *fsp, int leasetype);
1286 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
1287                           struct files_struct *fsp, off_t *poffset,
1288                           off_t *pcount, int *ptype, pid_t *ppid);
1289 int smb_vfs_call_symlink(struct vfs_handle_struct *handle,
1290                         const char *link_contents,
1291                         const struct smb_filename *new_smb_fname);
1292 int smb_vfs_call_readlink(struct vfs_handle_struct *handle,
1293                         const struct smb_filename *smb_fname,
1294                         char *buf,
1295                         size_t bufsiz);
1296 int smb_vfs_call_link(struct vfs_handle_struct *handle,
1297                         const struct smb_filename *old_smb_fname,
1298                         const struct smb_filename *new_smb_fname);
1299 int smb_vfs_call_mknod(struct vfs_handle_struct *handle,
1300                         const struct smb_filename *smb_fname,
1301                         mode_t mode,
1302                         SMB_DEV_T dev);
1303 struct smb_filename *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
1304                         TALLOC_CTX *ctx,
1305                         const struct smb_filename *smb_fname);
1306 int smb_vfs_call_chflags(struct vfs_handle_struct *handle,
1307                         const struct smb_filename *smb_fname,
1308                         unsigned int flags);
1309 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
1310                                            const SMB_STRUCT_STAT *sbuf);
1311 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
1312                                  struct files_struct *fsp,
1313                                  const struct smb_filename *smb_fname,
1314                                  TALLOC_CTX *mem_ctx,
1315                                  unsigned int *num_streams,
1316                                  struct stream_struct **streams);
1317 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
1318                                    const char *path, const char *name,
1319                                    TALLOC_CTX *mem_ctx, char **found_name);
1320 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
1321                                      const struct smb_filename *smb_fname);
1322 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
1323                                        struct byte_range_lock *br_lck,
1324                                        struct lock_struct *plock,
1325                                        bool blocking_lock);
1326 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
1327                                      struct messaging_context *msg_ctx,
1328                                      struct byte_range_lock *br_lck,
1329                                      const struct lock_struct *plock);
1330 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
1331                                      struct byte_range_lock *br_lck,
1332                                      struct lock_struct *plock);
1333 bool smb_vfs_call_strict_lock_check(struct vfs_handle_struct *handle,
1334                                     struct files_struct *fsp,
1335                                     struct lock_struct *plock);
1336 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
1337                                      const char *name,
1338                                      enum vfs_translate_direction direction,
1339                                      TALLOC_CTX *mem_ctx,
1340                                      char **mapped_name);
1341 NTSTATUS smb_vfs_call_fsctl(struct vfs_handle_struct *handle,
1342                             struct files_struct *fsp,
1343                             TALLOC_CTX *ctx,
1344                             uint32_t function,
1345                             uint16_t req_flags,
1346                             const uint8_t *_in_data,
1347                             uint32_t in_len,
1348                             uint8_t **_out_data,
1349                             uint32_t max_out_len,
1350                             uint32_t *out_len);
1351 NTSTATUS smb_vfs_call_get_dos_attributes(struct vfs_handle_struct *handle,
1352                                          struct smb_filename *smb_fname,
1353                                          uint32_t *dosmode);
1354 NTSTATUS smb_vfs_call_fget_dos_attributes(struct vfs_handle_struct *handle,
1355                                           struct files_struct *fsp,
1356                                           uint32_t *dosmode);
1357 NTSTATUS smb_vfs_call_set_dos_attributes(struct vfs_handle_struct *handle,
1358                                          const struct smb_filename *smb_fname,
1359                                          uint32_t dosmode);
1360 NTSTATUS smb_vfs_call_fset_dos_attributes(struct vfs_handle_struct *handle,
1361                                           struct files_struct *fsp,
1362                                           uint32_t dosmode);
1363 struct tevent_req *smb_vfs_call_get_dos_attributes_send(
1364                         TALLOC_CTX *mem_ctx,
1365                         struct tevent_context *ev,
1366                         struct vfs_handle_struct *handle,
1367                         files_struct *dir_fsp,
1368                         struct smb_filename *smb_fname);
1369 NTSTATUS smb_vfs_call_get_dos_attributes_recv(
1370                         struct tevent_req *req,
1371                         struct vfs_aio_state *aio_state,
1372                         uint32_t *dosmode);
1373 struct tevent_req *smb_vfs_call_offload_read_send(
1374         TALLOC_CTX *mem_ctx,
1375         struct tevent_context *ev,
1376         struct vfs_handle_struct *handle,
1377         struct files_struct *fsp,
1378         uint32_t fsctl,
1379         uint32_t ttl,
1380         off_t offset,
1381         size_t to_copy);
1382 NTSTATUS smb_vfs_call_offload_read_recv(struct tevent_req *req,
1383                                         struct vfs_handle_struct *handle,
1384                                         TALLOC_CTX *mem_ctx,
1385                                         DATA_BLOB *token_blob);
1386 struct tevent_req *smb_vfs_call_offload_write_send(struct vfs_handle_struct *handle,
1387                                                    TALLOC_CTX *mem_ctx,
1388                                                    struct tevent_context *ev,
1389                                                    uint32_t fsctl,
1390                                                    DATA_BLOB *token,
1391                                                    off_t transfer_offset,
1392                                                    struct files_struct *dest_fsp,
1393                                                    off_t dest_off,
1394                                                    off_t num);
1395 NTSTATUS smb_vfs_call_offload_write_recv(struct vfs_handle_struct *handle,
1396                                          struct tevent_req *req,
1397                                          off_t *copied);
1398 NTSTATUS smb_vfs_call_get_compression(struct vfs_handle_struct *handle,
1399                                       TALLOC_CTX *mem_ctx,
1400                                       struct files_struct *fsp,
1401                                       struct smb_filename *smb_fname,
1402                                       uint16_t *_compression_fmt);
1403 NTSTATUS smb_vfs_call_set_compression(struct vfs_handle_struct *handle,
1404                                       TALLOC_CTX *mem_ctx,
1405                                       struct files_struct *fsp,
1406                                       uint16_t compression_fmt);
1407 NTSTATUS smb_vfs_call_snap_check_path(vfs_handle_struct *handle,
1408                                       TALLOC_CTX *mem_ctx,
1409                                       const char *service_path,
1410                                       char **base_volume);
1411 NTSTATUS smb_vfs_call_snap_create(struct vfs_handle_struct *handle,
1412                                   TALLOC_CTX *mem_ctx,
1413                                   const char *base_volume,
1414                                   time_t *tstamp,
1415                                   bool rw,
1416                                   char **base_path,
1417                                   char **snap_path);
1418 NTSTATUS smb_vfs_call_snap_delete(struct vfs_handle_struct *handle,
1419                                   TALLOC_CTX *mem_ctx,
1420                                   char *base_path,
1421                                   char *snap_path);
1422 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
1423                                   struct files_struct *fsp,
1424                                   uint32_t security_info,
1425                                   TALLOC_CTX *mem_ctx,
1426                                   struct security_descriptor **ppdesc);
1427 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
1428                                  const struct smb_filename *smb_fname,
1429                                  uint32_t security_info,
1430                                  TALLOC_CTX *mem_ctx,
1431                                  struct security_descriptor **ppdesc);
1432 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
1433                                   struct files_struct *fsp,
1434                                   uint32_t security_info_sent,
1435                                   const struct security_descriptor *psd);
1436 NTSTATUS smb_vfs_call_audit_file(struct vfs_handle_struct *handle,
1437                                  struct smb_filename *file,
1438                                  struct security_acl *sacl,
1439                                  uint32_t access_requested,
1440                                  uint32_t access_denied);
1441 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle,
1442                                 const struct smb_filename *file,
1443                                 mode_t mode);
1444 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
1445                                         const struct smb_filename *smb_fname,
1446                                         SMB_ACL_TYPE_T type,
1447                                         TALLOC_CTX *mem_ctx);
1448 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
1449                                       struct files_struct *fsp,
1450                                       TALLOC_CTX *mem_ctx);
1451 int smb_vfs_call_sys_acl_blob_get_file(struct vfs_handle_struct *handle,
1452                                        const struct smb_filename *smb_fname,
1453                                        TALLOC_CTX *mem_ctx,
1454                                        char **blob_description,
1455                                        DATA_BLOB *blob);
1456 int smb_vfs_call_sys_acl_blob_get_fd(struct vfs_handle_struct *handle,
1457                                      struct files_struct *fsp,
1458                                      TALLOC_CTX *mem_ctx,
1459                                      char **blob_description,
1460                                      DATA_BLOB *blob);
1461 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
1462                                 const struct smb_filename *smb_fname,
1463                                 SMB_ACL_TYPE_T acltype,
1464                                 SMB_ACL_T theacl);
1465 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
1466                                 struct files_struct *fsp, SMB_ACL_T theacl);
1467 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
1468                                 const struct smb_filename *smb_fname);
1469 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
1470                                 const struct smb_filename *smb_fname,
1471                                 const char *name,
1472                                 void *value,
1473                                 size_t size);
1474 struct tevent_req *smb_vfs_call_getxattrat_send(
1475                         TALLOC_CTX *mem_ctx,
1476                         struct tevent_context *ev,
1477                         struct vfs_handle_struct *handle,
1478                         files_struct *dir_fsp,
1479                         const struct smb_filename *smb_fname,
1480                         const char *xattr_name,
1481                         size_t alloc_hint);
1482 ssize_t smb_vfs_call_getxattrat_recv(struct tevent_req *req,
1483                                      struct vfs_aio_state *aio_state,
1484                                      TALLOC_CTX *mem_ctx,
1485                                      uint8_t **xattr_value);
1486 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
1487                                struct files_struct *fsp, const char *name,
1488                                void *value, size_t size);
1489 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
1490                                 const struct smb_filename *smb_fname,
1491                                 char *list,
1492                                 size_t size);
1493 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
1494                                 struct files_struct *fsp, char *list,
1495                                 size_t size);
1496 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
1497                                 const struct smb_filename *smb_fname,
1498                                 const char *name);
1499 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
1500                               struct files_struct *fsp, const char *name);
1501 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle,
1502                                 const struct smb_filename *smb_fname,
1503                                 const char *name,
1504                                 const void *value,
1505                                 size_t size,
1506                                 int flags);
1507 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
1508                            const char *name, const void *value, size_t size,
1509                            int flags);
1510 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
1511                            struct files_struct *fsp, const char *name,
1512                            const void *value, size_t size, int flags);
1513 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
1514                             struct files_struct *fsp);
1515 NTSTATUS smb_vfs_call_durable_cookie(struct vfs_handle_struct *handle,
1516                                      struct files_struct *fsp,
1517                                      TALLOC_CTX *mem_ctx,
1518                                      DATA_BLOB *cookie);
1519 NTSTATUS smb_vfs_call_durable_disconnect(struct vfs_handle_struct *handle,
1520                                          struct files_struct *fsp,
1521                                          const DATA_BLOB old_cookie,
1522                                          TALLOC_CTX *mem_ctx,
1523                                          DATA_BLOB *new_cookie);
1524 NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
1525                                         struct smb_request *smb1req,
1526                                         struct smbXsrv_open *op,
1527                                         const DATA_BLOB old_cookie,
1528                                         TALLOC_CTX *mem_ctx,
1529                                         struct files_struct **fsp,
1530                                         DATA_BLOB *new_cookie);
1531 NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
1532                                    const struct smb_filename *fname,
1533                                    TALLOC_CTX *mem_ctx,
1534                                    struct readdir_attr_data **attr_data);
1535
1536 NTSTATUS smb_register_vfs(int version, const char *name,
1537                           const struct vfs_fn_pointers *fns);
1538 void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
1539                                    files_struct *fsp, size_t ext_size,
1540                                    void (*destroy_fn)(void *p_data));
1541 void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1542 void vfs_remove_all_fsp_extensions(struct files_struct *fsp);
1543 void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1544 void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp);
1545
1546 void smb_vfs_assert_all_fns(const struct vfs_fn_pointers* fns,
1547                             const char *module);
1548
1549 /*
1550  * Helper functions from source3/modules/vfs_not_implemented.c
1551  */
1552 int vfs_not_implemented_connect(
1553                         vfs_handle_struct *handle,
1554                         const char *service,
1555                         const char *user);
1556 void vfs_not_implemented_disconnect(vfs_handle_struct *handle);
1557 uint64_t vfs_not_implemented_disk_free(vfs_handle_struct *handle,
1558                                 const struct smb_filename *smb_fname,
1559                                 uint64_t *bsize,
1560                                 uint64_t *dfree,
1561                                 uint64_t *dsize);
1562 int vfs_not_implemented_get_quota(vfs_handle_struct *handle,
1563                                 const struct smb_filename *smb_fname,
1564                                 enum SMB_QUOTA_TYPE qtype,
1565                                 unid_t id,
1566                                 SMB_DISK_QUOTA *dq);
1567 int vfs_not_implemented_set_quota(vfs_handle_struct *handle,
1568                                   enum SMB_QUOTA_TYPE qtype,
1569                                   unid_t id, SMB_DISK_QUOTA *dq);
1570 int vfs_not_implemented_get_shadow_copy_data(vfs_handle_struct *handle,
1571                                 files_struct *fsp,
1572                                 struct shadow_copy_data *shadow_copy_data,
1573                                 bool labels);
1574 int vfs_not_implemented_statvfs(struct vfs_handle_struct *handle,
1575                                 const struct smb_filename *smb_fname,
1576                                 struct vfs_statvfs_struct *statbuf);
1577 uint32_t vfs_not_implemented_fs_capabilities(struct vfs_handle_struct *handle,
1578                                 enum timestamp_set_resolution *p_ts_res);
1579 NTSTATUS vfs_not_implemented_get_dfs_referrals(struct vfs_handle_struct *handle,
1580                                                struct dfs_GetDFSReferral *r);
1581 DIR *vfs_not_implemented_opendir(vfs_handle_struct *handle,
1582                         const struct smb_filename *smb_fname,
1583                         const char *mask,
1584                         uint32_t attr);
1585 NTSTATUS vfs_not_implemented_snap_check_path(struct vfs_handle_struct *handle,
1586                                 TALLOC_CTX *mem_ctx,
1587                                 const char *service_path,
1588                                 char **base_volume);
1589 NTSTATUS vfs_not_implemented_snap_create(struct vfs_handle_struct *handle,
1590                                          TALLOC_CTX *mem_ctx,
1591                                          const char *base_volume,
1592                                          time_t *tstamp,
1593                                          bool rw,
1594                                          char **base_path,
1595                                          char **snap_path);
1596 NTSTATUS vfs_not_implemented_snap_delete(struct vfs_handle_struct *handle,
1597                                          TALLOC_CTX *mem_ctx,
1598                                          char *base_path,
1599                                          char *snap_path);
1600 DIR *vfs_not_implemented_fdopendir(vfs_handle_struct *handle, files_struct *fsp,
1601                                    const char *mask, uint32_t attr);
1602 struct dirent *vfs_not_implemented_readdir(vfs_handle_struct *handle,
1603                                            DIR *dirp, SMB_STRUCT_STAT *sbuf);
1604 void vfs_not_implemented_seekdir(vfs_handle_struct *handle, DIR *dirp, long offset);
1605 long vfs_not_implemented_telldir(vfs_handle_struct *handle, DIR *dirp);
1606 void vfs_not_implemented_rewind_dir(vfs_handle_struct *handle, DIR *dirp);
1607 int vfs_not_implemented_mkdir(vfs_handle_struct *handle,
1608                 const struct smb_filename *smb_fname,
1609                 mode_t mode);
1610 int vfs_not_implemented_rmdir(vfs_handle_struct *handle,
1611                 const struct smb_filename *smb_fname);
1612 int vfs_not_implemented_closedir(vfs_handle_struct *handle, DIR *dir);
1613 int vfs_not_implemented_open(vfs_handle_struct *handle,
1614                              struct smb_filename *smb_fname,
1615                              files_struct *fsp, int flags, mode_t mode);
1616 NTSTATUS vfs_not_implemented_create_file(struct vfs_handle_struct *handle,
1617                                 struct smb_request *req,
1618                                 uint16_t root_dir_fid,
1619                                 struct smb_filename *smb_fname,
1620                                 uint32_t access_mask,
1621                                 uint32_t share_access,
1622                                 uint32_t create_disposition,
1623                                 uint32_t create_options,
1624                                 uint32_t file_attributes,
1625                                 uint32_t oplock_request,
1626                                 struct smb2_lease *lease,
1627                                 uint64_t allocation_size,
1628                                 uint32_t private_flags,
1629                                 struct security_descriptor *sd,
1630                                 struct ea_list *ea_list,
1631                                 files_struct **result, int *pinfo,
1632                                 const struct smb2_create_blobs *in_context_blobs,
1633                                 struct smb2_create_blobs *out_context_blobs);
1634 int vfs_not_implemented_close_fn(vfs_handle_struct *handle, files_struct *fsp);
1635 ssize_t vfs_not_implemented_pread(vfs_handle_struct *handle, files_struct *fsp,
1636                                   void *data, size_t n, off_t offset);
1637 struct tevent_req *vfs_not_implemented_pread_send(struct vfs_handle_struct *handle,
1638                                                   TALLOC_CTX *mem_ctx,
1639                                                   struct tevent_context *ev,
1640                                                   struct files_struct *fsp,
1641                                                   void *data, size_t n, off_t offset);
1642 ssize_t vfs_not_implemented_pread_recv(struct tevent_req *req,
1643                                        struct vfs_aio_state *vfs_aio_state);
1644 ssize_t vfs_not_implemented_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1645                                    const void *data, size_t n, off_t offset);
1646 struct tevent_req *vfs_not_implemented_pwrite_send(struct vfs_handle_struct *handle,
1647                                                    TALLOC_CTX *mem_ctx,
1648                                                    struct tevent_context *ev,
1649                                                    struct files_struct *fsp,
1650                                                    const void *data,
1651                                                    size_t n, off_t offset);
1652 ssize_t vfs_not_implemented_pwrite_recv(struct tevent_req *req,
1653                                 struct vfs_aio_state *vfs_aio_state);
1654 off_t vfs_not_implemented_lseek(vfs_handle_struct *handle, files_struct *fsp,
1655                         off_t offset, int whence);
1656 ssize_t vfs_not_implemented_sendfile(vfs_handle_struct *handle, int tofd,
1657                                      files_struct *fromfsp, const DATA_BLOB *hdr,
1658                                      off_t offset, size_t n);
1659 ssize_t vfs_not_implemented_recvfile(vfs_handle_struct *handle, int fromfd,
1660                                      files_struct *tofsp, off_t offset, size_t n);
1661 int vfs_not_implemented_rename(vfs_handle_struct *handle,
1662                                const struct smb_filename *smb_fname_src,
1663                                const struct smb_filename *smb_fname_dst);
1664 struct tevent_req *vfs_not_implemented_fsync_send(struct vfs_handle_struct *handle,
1665                                                   TALLOC_CTX *mem_ctx,
1666                                                   struct tevent_context *ev,
1667                                                   struct files_struct *fsp);
1668 int vfs_not_implemented_fsync_recv(struct tevent_req *req,
1669                                    struct vfs_aio_state *vfs_aio_state);
1670 int vfs_not_implemented_stat(vfs_handle_struct *handle, struct smb_filename *smb_fname);
1671 int vfs_not_implemented_fstat(vfs_handle_struct *handle, files_struct *fsp,
1672                         SMB_STRUCT_STAT *sbuf);
1673 int vfs_not_implemented_lstat(vfs_handle_struct *handle,
1674                               struct smb_filename *smb_fname);
1675 uint64_t vfs_not_implemented_get_alloc_size(struct vfs_handle_struct *handle,
1676                                             struct files_struct *fsp,
1677                                             const SMB_STRUCT_STAT *sbuf);
1678 int vfs_not_implemented_unlink(vfs_handle_struct *handle,
1679                                const struct smb_filename *smb_fname);
1680 int vfs_not_implemented_chmod(vfs_handle_struct *handle,
1681                               const struct smb_filename *smb_fname,
1682                               mode_t mode);
1683 int vfs_not_implemented_fchmod(vfs_handle_struct *handle, files_struct *fsp,
1684                                mode_t mode);
1685 int vfs_not_implemented_chown(vfs_handle_struct *handle,
1686                               const struct smb_filename *smb_fname,
1687                               uid_t uid,
1688                               gid_t gid);
1689 int vfs_not_implemented_fchown(vfs_handle_struct *handle, files_struct *fsp,
1690                                uid_t uid, gid_t gid);
1691 int vfs_not_implemented_lchown(vfs_handle_struct *handle,
1692                                const struct smb_filename *smb_fname,
1693                                uid_t uid,
1694                                gid_t gid);
1695 int vfs_not_implemented_chdir(vfs_handle_struct *handle,
1696                               const struct smb_filename *smb_fname);
1697 struct smb_filename *vfs_not_implemented_getwd(vfs_handle_struct *handle,
1698                                                TALLOC_CTX *ctx);
1699 int vfs_not_implemented_ntimes(vfs_handle_struct *handle,
1700                                const struct smb_filename *smb_fname,
1701                                struct smb_file_time *ft);
1702 int vfs_not_implemented_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1703                                   off_t offset);
1704 int vfs_not_implemented_fallocate(vfs_handle_struct *handle, files_struct *fsp,
1705                                   uint32_t mode, off_t offset, off_t len);
1706 bool vfs_not_implemented_lock(vfs_handle_struct *handle, files_struct *fsp, int op,
1707                               off_t offset, off_t count, int type);
1708 int vfs_not_implemented_kernel_flock(struct vfs_handle_struct *handle,
1709                                      struct files_struct *fsp,
1710                                      uint32_t share_mode, uint32_t access_mask);
1711 int vfs_not_implemented_linux_setlease(struct vfs_handle_struct *handle,
1712                                        struct files_struct *fsp, int leasetype);
1713 bool vfs_not_implemented_getlock(vfs_handle_struct *handle, files_struct *fsp,
1714                                  off_t *poffset, off_t *pcount, int *ptype,
1715                                  pid_t *ppid);
1716 int vfs_not_implemented_symlink(vfs_handle_struct *handle,
1717                                 const char *link_contents,
1718                                 const struct smb_filename *new_smb_fname);
1719 int vfs_not_implemented_vfs_readlink(vfs_handle_struct *handle,
1720                                      const struct smb_filename *smb_fname,
1721                                      char *buf,
1722                                      size_t bufsiz);
1723 int vfs_not_implemented_link(vfs_handle_struct *handle,
1724                              const struct smb_filename *old_smb_fname,
1725                              const struct smb_filename *new_smb_fname);
1726 int vfs_not_implemented_mknod(vfs_handle_struct *handle,
1727                               const struct smb_filename *smb_fname,
1728                               mode_t mode,
1729                               SMB_DEV_T dev);
1730 struct smb_filename *vfs_not_implemented_realpath(vfs_handle_struct *handle,
1731                                                   TALLOC_CTX *ctx,
1732                                                   const struct smb_filename *smb_fname);
1733 int vfs_not_implemented_chflags(vfs_handle_struct *handle,
1734                                 const struct smb_filename *smb_fname,
1735                                 uint flags);
1736 struct file_id vfs_not_implemented_file_id_create(vfs_handle_struct *handle,
1737                                                   const SMB_STRUCT_STAT *sbuf);
1738 struct tevent_req *vfs_not_implemented_offload_read_send(
1739                         TALLOC_CTX *mem_ctx,
1740                         struct tevent_context *ev,
1741                         struct vfs_handle_struct *handle,
1742                         struct files_struct *fsp,
1743                         uint32_t fsctl,
1744                         uint32_t ttl,
1745                         off_t offset,
1746                         size_t to_copy);
1747 NTSTATUS vfs_not_implemented_offload_read_recv(struct tevent_req *req,
1748                                        struct vfs_handle_struct *handle,
1749                                        TALLOC_CTX *mem_ctx,
1750                                        DATA_BLOB *_token_blob);
1751 struct tevent_req *vfs_not_implemented_offload_write_send(
1752                         struct vfs_handle_struct *handle,
1753                         TALLOC_CTX *mem_ctx,
1754                         struct tevent_context *ev,
1755                         uint32_t fsctl,
1756                         DATA_BLOB *token,
1757                         off_t transfer_offset,
1758                         struct files_struct *dest_fsp,
1759                         off_t dest_off,
1760                         off_t num);
1761 NTSTATUS vfs_not_implemented_offload_write_recv(struct vfs_handle_struct *handle,
1762                                                 struct tevent_req *req,
1763                                                 off_t *copied);
1764 NTSTATUS vfs_not_implemented_get_compression(struct vfs_handle_struct *handle,
1765                                              TALLOC_CTX *mem_ctx,
1766                                              struct files_struct *fsp,
1767                                              struct smb_filename *smb_fname,
1768                                              uint16_t *_compression_fmt);
1769 NTSTATUS vfs_not_implemented_set_compression(struct vfs_handle_struct *handle,
1770                                              TALLOC_CTX *mem_ctx,
1771                                              struct files_struct *fsp,
1772                                              uint16_t compression_fmt);
1773 NTSTATUS vfs_not_implemented_streaminfo(struct vfs_handle_struct *handle,
1774                                         struct files_struct *fsp,
1775                                         const struct smb_filename *smb_fname,
1776                                         TALLOC_CTX *mem_ctx,
1777                                         unsigned int *num_streams,
1778                                         struct stream_struct **streams);
1779 int vfs_not_implemented_get_real_filename(struct vfs_handle_struct *handle,
1780                                           const char *path,
1781                                           const char *name,
1782                                           TALLOC_CTX *mem_ctx,
1783                                           char **found_name);
1784 const char *vfs_not_implemented_connectpath(struct vfs_handle_struct *handle,
1785                                             const struct smb_filename *smb_fname);
1786 NTSTATUS vfs_not_implemented_brl_lock_windows(struct vfs_handle_struct *handle,
1787                                               struct byte_range_lock *br_lck,
1788                                               struct lock_struct *plock,
1789                                               bool blocking_lock);
1790 bool vfs_not_implemented_brl_unlock_windows(struct vfs_handle_struct *handle,
1791                                             struct messaging_context *msg_ctx,
1792                                             struct byte_range_lock *br_lck,
1793                                             const struct lock_struct *plock);
1794 bool vfs_not_implemented_brl_cancel_windows(struct vfs_handle_struct *handle,
1795                                             struct byte_range_lock *br_lck,
1796                                             struct lock_struct *plock);
1797 bool vfs_not_implemented_strict_lock_check(struct vfs_handle_struct *handle,
1798                                            struct files_struct *fsp,
1799                                            struct lock_struct *plock);
1800 NTSTATUS vfs_not_implemented_translate_name(struct vfs_handle_struct *handle,
1801                                             const char *mapped_name,
1802                                             enum vfs_translate_direction direction,
1803                                             TALLOC_CTX *mem_ctx, char **pmapped_name);
1804 NTSTATUS vfs_not_implemented_fsctl(struct vfs_handle_struct *handle,
1805                                    struct files_struct *fsp,
1806                                    TALLOC_CTX *ctx,
1807                                    uint32_t function,
1808                                    uint16_t req_flags,  /* Needed for UNICODE ... */
1809                                    const uint8_t *_in_data,
1810                                    uint32_t in_len,
1811                                    uint8_t **_out_data,
1812                                    uint32_t max_out_len, uint32_t *out_len);
1813 NTSTATUS vfs_not_implemented_readdir_attr(struct vfs_handle_struct *handle,
1814                                           const struct smb_filename *fname,
1815                                           TALLOC_CTX *mem_ctx,
1816                                           struct readdir_attr_data **pattr_data);
1817 NTSTATUS vfs_not_implemented_get_dos_attributes(struct vfs_handle_struct *handle,
1818                                                 struct smb_filename *smb_fname,
1819                                                 uint32_t *dosmode);
1820 struct tevent_req *vfs_not_implemented_get_dos_attributes_send(
1821                         TALLOC_CTX *mem_ctx,
1822                         struct tevent_context *ev,
1823                         struct vfs_handle_struct *handle,
1824                         files_struct *dir_fsp,
1825                         struct smb_filename *smb_fname);
1826 NTSTATUS vfs_not_implemented_get_dos_attributes_recv(
1827                         struct tevent_req *req,
1828                         struct vfs_aio_state *aio_state,
1829                         uint32_t *dosmode);
1830 NTSTATUS vfs_not_implemented_fget_dos_attributes(struct vfs_handle_struct *handle,
1831                                                  struct files_struct *fsp,
1832                                                  uint32_t *dosmode);
1833 NTSTATUS vfs_not_implemented_set_dos_attributes(struct vfs_handle_struct *handle,
1834                                                 const struct smb_filename *smb_fname,
1835                                                 uint32_t dosmode);
1836 NTSTATUS vfs_not_implemented_fset_dos_attributes(struct vfs_handle_struct *handle,
1837                                                  struct files_struct *fsp,
1838                                                  uint32_t dosmode);
1839 NTSTATUS vfs_not_implemented_fget_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1840                                          uint32_t security_info,
1841                                          TALLOC_CTX *mem_ctx,
1842                                          struct security_descriptor **ppdesc);
1843 NTSTATUS vfs_not_implemented_get_nt_acl(vfs_handle_struct *handle,
1844                                         const struct smb_filename *smb_fname,
1845                                         uint32_t security_info,
1846                                         TALLOC_CTX *mem_ctx,
1847                                         struct security_descriptor **ppdesc);
1848 NTSTATUS vfs_not_implemented_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp,
1849                                          uint32_t security_info_sent,
1850                                          const struct security_descriptor *psd);
1851 SMB_ACL_T vfs_not_implemented_sys_acl_get_file(vfs_handle_struct *handle,
1852                                                const struct smb_filename *smb_fname,
1853                                                SMB_ACL_TYPE_T type,
1854                                                TALLOC_CTX *mem_ctx);
1855 SMB_ACL_T vfs_not_implemented_sys_acl_get_fd(vfs_handle_struct *handle,
1856                                              files_struct *fsp, TALLOC_CTX *mem_ctx);
1857 int vfs_not_implemented_sys_acl_blob_get_file(vfs_handle_struct *handle,
1858                                 const struct smb_filename *smb_fname,
1859                                 TALLOC_CTX *mem_ctx,
1860                                 char **blob_description,
1861                                 DATA_BLOB *blob);
1862 int vfs_not_implemented_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1863                                 files_struct *fsp, TALLOC_CTX *mem_ctx,
1864                                 char **blob_description, DATA_BLOB *blob);
1865 int vfs_not_implemented_sys_acl_set_file(vfs_handle_struct *handle,
1866                                 const struct smb_filename *smb_fname,
1867                                 SMB_ACL_TYPE_T acltype,
1868                                 SMB_ACL_T theacl);
1869 int vfs_not_implemented_sys_acl_set_fd(vfs_handle_struct *handle, files_struct *fsp,
1870                                        SMB_ACL_T theacl);
1871 int vfs_not_implemented_sys_acl_delete_def_file(vfs_handle_struct *handle,
1872                                         const struct smb_filename *smb_fname);
1873 ssize_t vfs_not_implemented_getxattr(vfs_handle_struct *handle,
1874                                 const struct smb_filename *smb_fname,
1875                                 const char *name,
1876                                 void *value,
1877                                 size_t size);
1878 struct tevent_req *vfs_not_implemented_getxattrat_send(
1879                         TALLOC_CTX *mem_ctx,
1880                         struct tevent_context *ev,
1881                         struct vfs_handle_struct *handle,
1882                         files_struct *dir_fsp,
1883                         const struct smb_filename *smb_fname,
1884                         const char *xattr_name,
1885                         size_t alloc_hint);
1886 ssize_t vfs_not_implemented_getxattrat_recv(struct tevent_req *req,
1887                                     struct vfs_aio_state *aio_state,
1888                                     TALLOC_CTX *mem_ctx,
1889                                     uint8_t **xattr_value);
1890 ssize_t vfs_not_implemented_fgetxattr(vfs_handle_struct *handle,
1891                               struct files_struct *fsp, const char *name,
1892                               void *value, size_t size);
1893 ssize_t vfs_not_implemented_listxattr(vfs_handle_struct *handle,
1894                                       const struct smb_filename *smb_fname,
1895                                       char *list,
1896                                       size_t size);
1897 ssize_t vfs_not_implemented_flistxattr(vfs_handle_struct *handle,
1898                                        struct files_struct *fsp, char *list,
1899                                        size_t size);
1900 int vfs_not_implemented_removexattr(vfs_handle_struct *handle,
1901                                     const struct smb_filename *smb_fname,
1902                                     const char *name);
1903 int vfs_not_implemented_fremovexattr(vfs_handle_struct *handle,
1904                                      struct files_struct *fsp, const char *name);
1905 int vfs_not_implemented_setxattr(vfs_handle_struct *handle,
1906                                  const struct smb_filename *smb_fname,
1907                                  const char *name,
1908                                  const void *value,
1909                                  size_t size,
1910                                  int flags);
1911 int vfs_not_implemented_fsetxattr(vfs_handle_struct *handle, struct files_struct *fsp,
1912                                   const char *name, const void *value, size_t size,
1913                                   int flags);
1914 bool vfs_not_implemented_aio_force(struct vfs_handle_struct *handle,
1915                                    struct files_struct *fsp);
1916 NTSTATUS vfs_not_implemented_audit_file(struct vfs_handle_struct *handle,
1917                                         struct smb_filename *file,
1918                                         struct security_acl *sacl,
1919                                         uint32_t access_requested,
1920                                         uint32_t access_denied);
1921 NTSTATUS vfs_not_implemented_durable_cookie(struct vfs_handle_struct *handle,
1922                                             struct files_struct *fsp,
1923                                             TALLOC_CTX *mem_ctx,
1924                                             DATA_BLOB *cookie);
1925 NTSTATUS vfs_not_implemented_durable_disconnect(struct vfs_handle_struct *handle,
1926                                                 struct files_struct *fsp,
1927                                                 const DATA_BLOB old_cookie,
1928                                                 TALLOC_CTX *mem_ctx,
1929                                                 DATA_BLOB *new_cookie);
1930 NTSTATUS vfs_not_implemented_durable_reconnect(struct vfs_handle_struct *handle,
1931                                                struct smb_request *smb1req,
1932                                                struct smbXsrv_open *op,
1933                                                const DATA_BLOB old_cookie,
1934                                                TALLOC_CTX *mem_ctx,
1935                                                struct files_struct **fsp,
1936                                                DATA_BLOB *new_cookie);
1937 #endif /* _VFS_H */