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