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 #define SMB_VFS_INTERFACE_VERSION 27
 129
 130
 131 /* to bug old modules which are trying to compile with the old functions */
 132 #define vfs_init __ERROR_please_port_this_module_to_SMB_VFS_INTERFACE_VERSION_8_donot_use_vfs_init_anymore(void) { __ERROR_please_port_this_module_to_SMB_VFS_INTERFACE_VERSION_8_donot_use_vfs_init_anymore };
 133 #define lp_parm_string __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string { \
 134   __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string };
 135 #define lp_vfs_options __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead { \
 136   __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead };
 137
 138 /*
 139     All intercepted VFS operations must be declared as static functions inside module source
 140     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
 141     example VFS modules for more details.
 142 */
 143
 144 /* VFS operations structure */
 145
 146 struct vfs_handle_struct;
 147 struct connection_struct;
 148 struct files_struct;
 149 struct security_descriptor;
 150 struct vfs_statvfs_struct;
 151 struct smb_request;
 152 struct ea_list;
 153 struct smb_file_time;
 154 struct blocking_lock_record;
 155 struct smb_filename;
 156
 157 #define VFS_FIND(__fn__) while (handle->fns->__fn__==NULL) { \
 158                                 handle = handle->next; \
 159                          }
 160
 161 enum vfs_translate_direction {
 162         vfs_translate_to_unix = 0,
 163         vfs_translate_to_windows
 164 };
 165
 166 /*
 167     Available VFS operations. These values must be in sync with vfs_ops struct
 168     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
 169     In particular, if new operations are added to vfs_ops, appropriate constants
 170     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
 171 */
 172
 173 struct vfs_fn_pointers {
 174         /* Disk operations */
 175
 176         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
 177         void (*disconnect)(struct vfs_handle_struct *handle);
 178         uint64_t (*disk_free)(struct vfs_handle_struct *handle, const char *path, bool small_query, uint64_t *bsize,
 179                               uint64_t *dfree, uint64_t *dsize);
 180         int (*get_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 181         int (*set_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 182         int (*get_shadow_copy_data)(struct vfs_handle_struct *handle, struct files_struct *fsp, SHADOW_COPY_DATA *shadow_copy_data, bool labels);
 183         int (*statvfs)(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf);
 184         uint32_t (*fs_capabilities)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
 185
 186         /* Directory operations */
 187
 188         SMB_STRUCT_DIR *(*opendir)(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attributes);
 189         SMB_STRUCT_DIRENT *(*readdir)(struct vfs_handle_struct *handle,
 190                                       SMB_STRUCT_DIR *dirp,
 191                                       SMB_STRUCT_STAT *sbuf);
 192         void (*seekdir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp, long offset);
 193         long (*telldir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 194         void (*rewind_dir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 195         int (*mkdir)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
 196         int (*rmdir)(struct vfs_handle_struct *handle, const char *path);
 197         int (*closedir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dir);
 198         void (*init_search_op)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 199
 200         /* File operations */
 201
 202         int (*open)(struct vfs_handle_struct *handle,
 203                     struct smb_filename *smb_fname, files_struct *fsp,
 204                     int flags, mode_t mode);
 205         NTSTATUS (*create_file)(struct vfs_handle_struct *handle,
 206                                 struct smb_request *req,
 207                                 uint16_t root_dir_fid,
 208                                 struct smb_filename *smb_fname,
 209                                 uint32_t access_mask,
 210                                 uint32_t share_access,
 211                                 uint32_t create_disposition,
 212                                 uint32_t create_options,
 213                                 uint32_t file_attributes,
 214                                 uint32_t oplock_request,
 215                                 uint64_t allocation_size,
 216                                 struct security_descriptor *sd,
 217                                 struct ea_list *ea_list,
 218                                 files_struct **result,
 219                                 int *pinfo);
 220         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 221         ssize_t (*vfs_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n);
 222         ssize_t (*pread)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, SMB_OFF_T offset);
 223         ssize_t (*write)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n);
 224         ssize_t (*pwrite)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset);
 225         SMB_OFF_T (*lseek)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset, int whence);
 226         ssize_t (*sendfile)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, SMB_OFF_T offset, size_t count);
 227         ssize_t (*recvfile)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, SMB_OFF_T offset, size_t count);
 228         int (*rename)(struct vfs_handle_struct *handle,
 229                       const struct smb_filename *smb_fname_src,
 230                       const struct smb_filename *smb_fname_dst);
 231         int (*fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 232         int (*stat)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
 233         int (*fstat)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 234         int (*lstat)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
 235         uint64_t (*get_alloc_size)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
 236         int (*unlink)(struct vfs_handle_struct *handle,
 237                       const struct smb_filename *smb_fname);
 238         int (*chmod)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
 239         int (*fchmod)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 240         int (*chown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
 241         int (*fchown)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
 242         int (*lchown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
 243         int (*chdir)(struct vfs_handle_struct *handle, const char *path);
 244         char *(*getwd)(struct vfs_handle_struct *handle, char *buf);
 245         int (*ntimes)(struct vfs_handle_struct *handle,
 246                       const struct smb_filename *smb_fname,
 247                       struct smb_file_time *ft);
 248         int (*ftruncate)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset);
 249         bool (*lock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
 250         int (*kernel_flock)(struct vfs_handle_struct *handle, struct files_struct *fsp, uint32 share_mode);
 251         int (*linux_setlease)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
 252         bool (*getlock)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 253         int (*symlink)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
 254         int (*vfs_readlink)(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz);
 255         int (*link)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
 256         int (*mknod)(struct vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev);
 257         char *(*realpath)(struct vfs_handle_struct *handle, const char *path, char *resolved_path);
 258         NTSTATUS (*notify_watch)(struct vfs_handle_struct *handle,
 259                                  struct sys_notify_context *ctx,
 260                                  struct notify_entry *e,
 261                                  void (*callback)(struct sys_notify_context *ctx,
 262                                                   void *private_data,
 263                                                   struct notify_event *ev),
 264                                  void *private_data, void *handle_p);
 265         int (*chflags)(struct vfs_handle_struct *handle, const char *path, unsigned int flags);
 266         struct file_id (*file_id_create)(struct vfs_handle_struct *handle,
 267                                          const SMB_STRUCT_STAT *sbuf);
 268
 269         NTSTATUS (*streaminfo)(struct vfs_handle_struct *handle,
 270                                struct files_struct *fsp,
 271                                const char *fname,
 272                                TALLOC_CTX *mem_ctx,
 273                                unsigned int *num_streams,
 274                                struct stream_struct **streams);
 275
 276         int (*get_real_filename)(struct vfs_handle_struct *handle,
 277                                  const char *path,
 278                                  const char *name,
 279                                  TALLOC_CTX *mem_ctx,
 280                                  char **found_name);
 281
 282         const char *(*connectpath)(struct vfs_handle_struct *handle,
 283                                    const char *filename);
 284
 285         NTSTATUS (*brl_lock_windows)(struct vfs_handle_struct *handle,
 286                                      struct byte_range_lock *br_lck,
 287                                      struct lock_struct *plock,
 288                                      bool blocking_lock,
 289                                      struct blocking_lock_record *blr);
 290
 291         bool (*brl_unlock_windows)(struct vfs_handle_struct *handle,
 292                                    struct messaging_context *msg_ctx,
 293                                    struct byte_range_lock *br_lck,
 294                                    const struct lock_struct *plock);
 295
 296         bool (*brl_cancel_windows)(struct vfs_handle_struct *handle,
 297                                    struct byte_range_lock *br_lck,
 298                                    struct lock_struct *plock,
 299                                    struct blocking_lock_record *blr);
 300
 301         bool (*strict_lock)(struct vfs_handle_struct *handle,
 302                             struct files_struct *fsp,
 303                             struct lock_struct *plock);
 304
 305         void (*strict_unlock)(struct vfs_handle_struct *handle,
 306                               struct files_struct *fsp,
 307                               struct lock_struct *plock);
 308
 309         NTSTATUS (*translate_name)(struct vfs_handle_struct *handle,
 310                                    char **mapped_name,
 311                                    enum vfs_translate_direction direction);
 312
 313         /* NT ACL operations. */
 314
 315         NTSTATUS (*fget_nt_acl)(struct vfs_handle_struct *handle,
 316                                 struct files_struct *fsp,
 317                                 uint32 security_info,
 318                                 struct security_descriptor **ppdesc);
 319         NTSTATUS (*get_nt_acl)(struct vfs_handle_struct *handle,
 320                                const char *name,
 321                                uint32 security_info,
 322                                struct security_descriptor **ppdesc);
 323         NTSTATUS (*fset_nt_acl)(struct vfs_handle_struct *handle,
 324                                 struct files_struct *fsp,
 325                                 uint32 security_info_sent,
 326                                 const struct security_descriptor *psd);
 327
 328         /* POSIX ACL operations. */
 329
 330         int (*chmod_acl)(struct vfs_handle_struct *handle, const char *name, mode_t mode);
 331         int (*fchmod_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 332
 333         int (*sys_acl_get_entry)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p);
 334         int (*sys_acl_get_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p);
 335         int (*sys_acl_get_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p);
 336         void * (*sys_acl_get_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d);
 337         SMB_ACL_T (*sys_acl_get_file)(struct vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type);
 338         SMB_ACL_T (*sys_acl_get_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 339         int (*sys_acl_clear_perms)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset);
 340         int (*sys_acl_add_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
 341         char * (*sys_acl_to_text)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, ssize_t *plen);
 342         SMB_ACL_T (*sys_acl_init)(struct vfs_handle_struct *handle, int count);
 343         int (*sys_acl_create_entry)(struct vfs_handle_struct *handle, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
 344         int (*sys_acl_set_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype);
 345         int (*sys_acl_set_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, void *qual);
 346         int (*sys_acl_set_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset);
 347         int (*sys_acl_valid)(struct vfs_handle_struct *handle, SMB_ACL_T theacl );
 348         int (*sys_acl_set_file)(struct vfs_handle_struct *handle, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
 349         int (*sys_acl_set_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
 350         int (*sys_acl_delete_def_file)(struct vfs_handle_struct *handle, const char *path);
 351         int (*sys_acl_get_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
 352         int (*sys_acl_free_text)(struct vfs_handle_struct *handle, char *text);
 353         int (*sys_acl_free_acl)(struct vfs_handle_struct *handle, SMB_ACL_T posix_acl);
 354         int (*sys_acl_free_qualifier)(struct vfs_handle_struct *handle, void *qualifier, SMB_ACL_TAG_T tagtype);
 355
 356         /* EA operations. */
 357         ssize_t (*getxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
 358         ssize_t (*lgetxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
 359         ssize_t (*fgetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
 360         ssize_t (*listxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
 361         ssize_t (*llistxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
 362         ssize_t (*flistxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
 363         int (*removexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
 364         int (*lremovexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
 365         int (*fremovexattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
 366         int (*setxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
 367         int (*lsetxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
 368         int (*fsetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
 369
 370         /* aio operations */
 371         int (*aio_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 372         int (*aio_write)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 373         ssize_t (*aio_return_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 374         int (*aio_cancel)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 375         int (*aio_error_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 376         int (*aio_fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_STRUCT_AIOCB *aiocb);
 377         int (*aio_suspend)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_AIOCB * const aiocb[], int n, const struct timespec *timeout);
 378         bool (*aio_force)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 379
 380         /* offline operations */
 381         bool (*is_offline)(struct vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf);
 382         int (*set_offline)(struct vfs_handle_struct *handle, const char *path);
 383 };
 384
 385 /*
 386     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
 387     which describes all operations this module is willing to intercept.
 388     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
 389     using this information.
 390 */
 391
 392 typedef struct vfs_handle_struct {
 393         struct vfs_handle_struct  *next, *prev;
 394         const char *param;
 395         struct connection_struct *conn;
 396         const struct vfs_fn_pointers *fns;
 397         void *data;
 398         void (*free_data)(void **data);
 399 } vfs_handle_struct;
 400
 401
 402 typedef struct vfs_statvfs_struct {
 403         /* For undefined recommended transfer size return -1 in that field */
 404         uint32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
 405         uint32 BlockSize;
 406
 407         /*
 408          The next three fields are in terms of the block size.
 409          (above). If block size is unknown, 4096 would be a
 410          reasonable block size for a server to report.
 411          Note that returning the blocks/blocksavail removes need
 412          to make a second call (to QFSInfo level 0x103 to get this info.
 413          UserBlockAvail is typically less than or equal to BlocksAvail,
 414          if no distinction is made return the same value in each.
 415         */
 416
 417         uint64_t TotalBlocks;
 418         uint64_t BlocksAvail;       /* bfree */
 419         uint64_t UserBlocksAvail;   /* bavail */
 420
 421         /* For undefined Node fields or FSID return -1 */
 422         uint64_t TotalFileNodes;
 423         uint64_t FreeFileNodes;
 424         uint64_t FsIdentifier;   /* fsid */
 425         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
 426         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
 427
 428         int FsCapabilities;
 429 } vfs_statvfs_struct;
 430
 431 /* Add a new FSP extension of the given type. Returns a pointer to the
 432  * extenstion data.
 433  */
 434 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
 435     vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
 436
 437 /* Return a pointer to the existing FSP extension data. */
 438 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
 439     vfs_fetch_fsp_extension(handle, (fsp))
 440
 441 /* Return the talloc context associated with an FSP extension. */
 442 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
 443     vfs_memctx_fsp_extension(handle, (fsp))
 444
 445 /* Remove and destroy an FSP extension. */
 446 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
 447     vfs_remove_fsp_extension((handle), (fsp))
 448
 449 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
 450         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
 451                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",FUNCTION_MACRO)); \
 452                 ret; \
 453         } \
 454 }
 455
 456 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
 457         if (!(handle)) { \
 458                 DEBUG(0,("%s() failed to set handle->data!\n",FUNCTION_MACRO)); \
 459                 ret; \
 460         } else { \
 461                 if ((handle)->free_data) { \
 462                         (handle)->free_data(&(handle)->data); \
 463                 } \
 464                 (handle)->data = (void *)datap; \
 465                 (handle)->free_data = free_fn; \
 466         } \
 467 }
 468
 469 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
 470         if ((handle) && (handle)->free_data) { \
 471                 (handle)->free_data(&(handle)->data); \
 472         } \
 473 }
 474
 475 /* Check whether module-specific data handle was already allocated or not */
 476 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
 477
 478 #define SMB_VFS_OP(x) ((void *) x)
 479
 480 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
 481
 482 #include "vfs_macros.h"
 483
 484 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
 485                          const char *service, const char *user);
 486 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
 487 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
 488                                 const char *path, bool small_query,
 489                                 uint64_t *bsize, uint64_t *dfree,
 490                                 uint64_t *dsize);
 491 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
 492                            enum SMB_QUOTA_TYPE qtype, unid_t id,
 493                            SMB_DISK_QUOTA *qt);
 494 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
 495                            enum SMB_QUOTA_TYPE qtype, unid_t id,
 496                            SMB_DISK_QUOTA *qt);
 497 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
 498                                       struct files_struct *fsp,
 499                                       SHADOW_COPY_DATA *shadow_copy_data,
 500                                       bool labels);
 501 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
 502                          struct vfs_statvfs_struct *statbuf);
 503 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
 504                         enum timestamp_set_resolution *p_ts_res);
 505 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
 506                                      const char *fname, const char *mask,
 507                                      uint32 attributes);
 508 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
 509                                         SMB_STRUCT_DIR *dirp,
 510                                         SMB_STRUCT_STAT *sbuf);
 511 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
 512                           SMB_STRUCT_DIR *dirp, long offset);
 513 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
 514                           SMB_STRUCT_DIR *dirp);
 515 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
 516                              SMB_STRUCT_DIR *dirp);
 517 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
 518                        mode_t mode);
 519 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path);
 520 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
 521                           SMB_STRUCT_DIR *dir);
 522 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
 523                                  SMB_STRUCT_DIR *dirp);
 524 int smb_vfs_call_open(struct vfs_handle_struct *handle,
 525                       struct smb_filename *smb_fname, struct files_struct *fsp,
 526                       int flags, mode_t mode);
 527 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
 528                                   struct smb_request *req,
 529                                   uint16_t root_dir_fid,
 530                                   struct smb_filename *smb_fname,
 531                                   uint32_t access_mask,
 532                                   uint32_t share_access,
 533                                   uint32_t create_disposition,
 534                                   uint32_t create_options,
 535                                   uint32_t file_attributes,
 536                                   uint32_t oplock_request,
 537                                   uint64_t allocation_size,
 538                                   struct security_descriptor *sd,
 539                                   struct ea_list *ea_list,
 540                                   files_struct **result,
 541                                   int *pinfo);
 542 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
 543                           struct files_struct *fsp);
 544 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
 545                               struct files_struct *fsp, void *data, size_t n);
 546 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
 547                            struct files_struct *fsp, void *data, size_t n,
 548                            SMB_OFF_T offset);
 549 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
 550                            struct files_struct *fsp, const void *data,
 551                            size_t n);
 552 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
 553                             struct files_struct *fsp, const void *data,
 554                             size_t n, SMB_OFF_T offset);
 555 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
 556                              struct files_struct *fsp, SMB_OFF_T offset,
 557                              int whence);
 558 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
 559                               files_struct *fromfsp, const DATA_BLOB *header,
 560                               SMB_OFF_T offset, size_t count);
 561 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
 562                               files_struct *tofsp, SMB_OFF_T offset,
 563                               size_t count);
 564 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
 565                         const struct smb_filename *smb_fname_src,
 566                         const struct smb_filename *smb_fname_dst);
 567 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
 568                        struct files_struct *fsp);
 569 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
 570                       struct smb_filename *smb_fname);
 571 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
 572                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 573 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
 574                        struct smb_filename *smb_filename);
 575 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
 576                                      struct files_struct *fsp,
 577                                      const SMB_STRUCT_STAT *sbuf);
 578 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
 579                         const struct smb_filename *smb_fname);
 580 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
 581                        mode_t mode);
 582 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
 583                         struct files_struct *fsp, mode_t mode);
 584 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
 585                        uid_t uid, gid_t gid);
 586 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
 587                         struct files_struct *fsp, uid_t uid, gid_t gid);
 588 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
 589                         uid_t uid, gid_t gid);
 590 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path);
 591 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf);
 592 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
 593                         const struct smb_filename *smb_fname,
 594                         struct smb_file_time *ft);
 595 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
 596                            struct files_struct *fsp, SMB_OFF_T offset);
 597 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
 598                        struct files_struct *fsp, int op, SMB_OFF_T offset,
 599                        SMB_OFF_T count, int type);
 600 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
 601                               struct files_struct *fsp, uint32 share_mode);
 602 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
 603                                 struct files_struct *fsp, int leasetype);
 604 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
 605                           struct files_struct *fsp, SMB_OFF_T *poffset,
 606                           SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 607 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
 608                          const char *newpath);
 609 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
 610                               const char *path, char *buf, size_t bufsiz);
 611 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
 612                       const char *newpath);
 613 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
 614                        mode_t mode, SMB_DEV_T dev);
 615 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
 616                             const char *path, char *resolved_path);
 617 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
 618                                    struct sys_notify_context *ctx,
 619                                    struct notify_entry *e,
 620                                    void (*callback)(struct sys_notify_context *ctx,
 621                                                     void *private_data,
 622                                                     struct notify_event *ev),
 623                                    void *private_data, void *handle_p);
 624 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
 625                          unsigned int flags);
 626 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
 627                                            const SMB_STRUCT_STAT *sbuf);
 628 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
 629                                  struct files_struct *fsp,
 630                                  const char *fname,
 631                                  TALLOC_CTX *mem_ctx,
 632                                  unsigned int *num_streams,
 633                                  struct stream_struct **streams);
 634 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
 635                                    const char *path, const char *name,
 636                                    TALLOC_CTX *mem_ctx, char **found_name);
 637 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
 638                                      const char *filename);
 639 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
 640                                        struct byte_range_lock *br_lck,
 641                                        struct lock_struct *plock,
 642                                        bool blocking_lock,
 643                                        struct blocking_lock_record *blr);
 644 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
 645                                      struct messaging_context *msg_ctx,
 646                                      struct byte_range_lock *br_lck,
 647                                      const struct lock_struct *plock);
 648 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
 649                                      struct byte_range_lock *br_lck,
 650                                      struct lock_struct *plock,
 651                                      struct blocking_lock_record *blr);
 652 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
 653                               struct files_struct *fsp,
 654                               struct lock_struct *plock);
 655 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
 656                                 struct files_struct *fsp,
 657                                 struct lock_struct *plock);
 658 NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
 659                                      char **mapped_name,
 660                                      enum vfs_translate_direction direction);
 661 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
 662                                   struct files_struct *fsp,
 663                                   uint32 security_info,
 664                                   struct security_descriptor **ppdesc);
 665 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
 666                                  const char *name,
 667                                  uint32 security_info,
 668                                  struct security_descriptor **ppdesc);
 669 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
 670                                   struct files_struct *fsp,
 671                                   uint32 security_info_sent,
 672                                   const struct security_descriptor *psd);
 673 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
 674                            mode_t mode);
 675 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
 676                             struct files_struct *fsp, mode_t mode);
 677 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
 678                                    SMB_ACL_T theacl, int entry_id,
 679                                    SMB_ACL_ENTRY_T *entry_p);
 680 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
 681                                       SMB_ACL_ENTRY_T entry_d,
 682                                       SMB_ACL_TAG_T *tag_type_p);
 683 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
 684                                      SMB_ACL_ENTRY_T entry_d,
 685                                      SMB_ACL_PERMSET_T *permset_p);
 686 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
 687                                           SMB_ACL_ENTRY_T entry_d);
 688 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
 689                                         const char *path_p,
 690                                         SMB_ACL_TYPE_T type);
 691 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
 692                                       struct files_struct *fsp);
 693 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
 694                                      SMB_ACL_PERMSET_T permset);
 695 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
 696                                   SMB_ACL_PERMSET_T permset,
 697                                   SMB_ACL_PERM_T perm);
 698 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
 699                                     SMB_ACL_T theacl, ssize_t *plen);
 700 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
 701                                     int count);
 702 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
 703                                       SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
 704 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
 705                                       SMB_ACL_ENTRY_T entry,
 706                                       SMB_ACL_TAG_T tagtype);
 707 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
 708                                        SMB_ACL_ENTRY_T entry, void *qual);
 709 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
 710                                      SMB_ACL_ENTRY_T entry,
 711                                      SMB_ACL_PERMSET_T permset);
 712 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
 713                                SMB_ACL_T theacl);
 714 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
 715                                   const char *name, SMB_ACL_TYPE_T acltype,
 716                                   SMB_ACL_T theacl);
 717 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
 718                                 struct files_struct *fsp, SMB_ACL_T theacl);
 719 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
 720                                          const char *path);
 721 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
 722                                   SMB_ACL_PERMSET_T permset,
 723                                   SMB_ACL_PERM_T perm);
 724 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
 725                                    char *text);
 726 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
 727                                   SMB_ACL_T posix_acl);
 728 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
 729                                         void *qualifier, SMB_ACL_TAG_T tagtype);
 730 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
 731                               const char *path, const char *name, void *value,
 732                               size_t size);
 733 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
 734                                const char *path, const char *name, void *value,
 735                                size_t size);
 736 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
 737                                struct files_struct *fsp, const char *name,
 738                                void *value, size_t size);
 739 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
 740                                const char *path, char *list, size_t size);
 741 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
 742                                 const char *path, char *list, size_t size);
 743 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
 744                                 struct files_struct *fsp, char *list,
 745                                 size_t size);
 746 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
 747                              const char *path, const char *name);
 748 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
 749                               const char *path, const char *name);
 750 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
 751                               struct files_struct *fsp, const char *name);
 752 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
 753                           const char *name, const void *value, size_t size,
 754                           int flags);
 755 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
 756                            const char *name, const void *value, size_t size,
 757                            int flags);
 758 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
 759                            struct files_struct *fsp, const char *name,
 760                            const void *value, size_t size, int flags);
 761 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
 762                           struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 763 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
 764                            struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 765 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
 766                                    struct files_struct *fsp,
 767                                    SMB_STRUCT_AIOCB *aiocb);
 768 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
 769                             struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 770 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
 771                               struct files_struct *fsp,
 772                               SMB_STRUCT_AIOCB *aiocb);
 773 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
 774                            struct files_struct *fsp, int op,
 775                            SMB_STRUCT_AIOCB *aiocb);
 776 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
 777                              struct files_struct *fsp,
 778                              const SMB_STRUCT_AIOCB * const aiocb[], int n,
 779                              const struct timespec *timeout);
 780 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
 781                             struct files_struct *fsp);
 782 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
 783                              const char *path, SMB_STRUCT_STAT *sbuf);
 784 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
 785                              const char *path);
 786
 787 #endif /* _VFS_H */