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