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 #define SMB_VFS_INTERFACE_VERSION 27
 127
 128
 129 /* to bug old modules which are trying to compile with the old functions */
 130 #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 };
 131 #define lp_parm_string __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string { \
 132   __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string };
 133 #define lp_vfs_options __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead { \
 134   __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead };
 135
 136 /*
 137     All intercepted VFS operations must be declared as static functions inside module source
 138     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
 139     example VFS modules for more details.
 140 */
 141
 142 /* VFS operations structure */
 143
 144 struct vfs_handle_struct;
 145 struct connection_struct;
 146 struct files_struct;
 147 struct security_descriptor;
 148 struct vfs_statvfs_struct;
 149 struct smb_request;
 150 struct ea_list;
 151 struct smb_file_time;
 152 struct blocking_lock_record;
 153 struct smb_filename;
 154
 155 #define VFS_FIND(__fn__) while (handle->fns->__fn__==NULL) { \
 156                                 handle = handle->next; \
 157                          }
 158
 159 /*
 160     Available VFS operations. These values must be in sync with vfs_ops struct
 161     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
 162     In particular, if new operations are added to vfs_ops, appropriate constants
 163     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
 164 */
 165
 166 struct vfs_fn_pointers {
 167         /* Disk operations */
 168
 169         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
 170         void (*disconnect)(struct vfs_handle_struct *handle);
 171         uint64_t (*disk_free)(struct vfs_handle_struct *handle, const char *path, bool small_query, uint64_t *bsize,
 172                               uint64_t *dfree, uint64_t *dsize);
 173         int (*get_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 174         int (*set_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 175         int (*get_shadow_copy_data)(struct vfs_handle_struct *handle, struct files_struct *fsp, SHADOW_COPY_DATA *shadow_copy_data, bool labels);
 176         int (*statvfs)(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf);
 177         uint32_t (*fs_capabilities)(struct vfs_handle_struct *handle, enum timestamp_set_resolution *p_ts_res);
 178
 179         /* Directory operations */
 180
 181         SMB_STRUCT_DIR *(*opendir)(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attributes);
 182         SMB_STRUCT_DIRENT *(*readdir)(struct vfs_handle_struct *handle,
 183                                       SMB_STRUCT_DIR *dirp,
 184                                       SMB_STRUCT_STAT *sbuf);
 185         void (*seekdir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp, long offset);
 186         long (*telldir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 187         void (*rewind_dir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 188         int (*mkdir)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
 189         int (*rmdir)(struct vfs_handle_struct *handle, const char *path);
 190         int (*closedir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dir);
 191         void (*init_search_op)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 192
 193         /* File operations */
 194
 195         int (*open)(struct vfs_handle_struct *handle,
 196                     struct smb_filename *smb_fname, files_struct *fsp,
 197                     int flags, mode_t mode);
 198         NTSTATUS (*create_file)(struct vfs_handle_struct *handle,
 199                                 struct smb_request *req,
 200                                 uint16_t root_dir_fid,
 201                                 struct smb_filename *smb_fname,
 202                                 uint32_t access_mask,
 203                                 uint32_t share_access,
 204                                 uint32_t create_disposition,
 205                                 uint32_t create_options,
 206                                 uint32_t file_attributes,
 207                                 uint32_t oplock_request,
 208                                 uint64_t allocation_size,
 209                                 struct security_descriptor *sd,
 210                                 struct ea_list *ea_list,
 211                                 files_struct **result,
 212                                 int *pinfo);
 213         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 214         ssize_t (*vfs_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n);
 215         ssize_t (*pread)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, SMB_OFF_T offset);
 216         ssize_t (*write)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n);
 217         ssize_t (*pwrite)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset);
 218         SMB_OFF_T (*lseek)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset, int whence);
 219         ssize_t (*sendfile)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, SMB_OFF_T offset, size_t count);
 220         ssize_t (*recvfile)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, SMB_OFF_T offset, size_t count);
 221         int (*rename)(struct vfs_handle_struct *handle,
 222                       const struct smb_filename *smb_fname_src,
 223                       const struct smb_filename *smb_fname_dst);
 224         int (*fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 225         int (*stat)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
 226         int (*fstat)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 227         int (*lstat)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
 228         uint64_t (*get_alloc_size)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
 229         int (*unlink)(struct vfs_handle_struct *handle,
 230                       const struct smb_filename *smb_fname);
 231         int (*chmod)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
 232         int (*fchmod)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 233         int (*chown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
 234         int (*fchown)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
 235         int (*lchown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
 236         int (*chdir)(struct vfs_handle_struct *handle, const char *path);
 237         char *(*getwd)(struct vfs_handle_struct *handle, char *buf);
 238         int (*ntimes)(struct vfs_handle_struct *handle,
 239                       const struct smb_filename *smb_fname,
 240                       struct smb_file_time *ft);
 241         int (*ftruncate)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset);
 242         bool (*lock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
 243         int (*kernel_flock)(struct vfs_handle_struct *handle, struct files_struct *fsp, uint32 share_mode);
 244         int (*linux_setlease)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
 245         bool (*getlock)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 246         int (*symlink)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
 247         int (*vfs_readlink)(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz);
 248         int (*link)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
 249         int (*mknod)(struct vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev);
 250         char *(*realpath)(struct vfs_handle_struct *handle, const char *path, char *resolved_path);
 251         NTSTATUS (*notify_watch)(struct vfs_handle_struct *handle,
 252                                  struct sys_notify_context *ctx,
 253                                  struct notify_entry *e,
 254                                  void (*callback)(struct sys_notify_context *ctx,
 255                                                   void *private_data,
 256                                                   struct notify_event *ev),
 257                                  void *private_data, void *handle_p);
 258         int (*chflags)(struct vfs_handle_struct *handle, const char *path, unsigned int flags);
 259         struct file_id (*file_id_create)(struct vfs_handle_struct *handle,
 260                                          const SMB_STRUCT_STAT *sbuf);
 261
 262         NTSTATUS (*streaminfo)(struct vfs_handle_struct *handle,
 263                                struct files_struct *fsp,
 264                                const char *fname,
 265                                TALLOC_CTX *mem_ctx,
 266                                unsigned int *num_streams,
 267                                struct stream_struct **streams);
 268
 269         int (*get_real_filename)(struct vfs_handle_struct *handle,
 270                                  const char *path,
 271                                  const char *name,
 272                                  TALLOC_CTX *mem_ctx,
 273                                  char **found_name);
 274
 275         const char *(*connectpath)(struct vfs_handle_struct *handle,
 276                                    const char *filename);
 277
 278         NTSTATUS (*brl_lock_windows)(struct vfs_handle_struct *handle,
 279                                      struct byte_range_lock *br_lck,
 280                                      struct lock_struct *plock,
 281                                      bool blocking_lock,
 282                                      struct blocking_lock_record *blr);
 283
 284         bool (*brl_unlock_windows)(struct vfs_handle_struct *handle,
 285                                    struct messaging_context *msg_ctx,
 286                                    struct byte_range_lock *br_lck,
 287                                    const struct lock_struct *plock);
 288
 289         bool (*brl_cancel_windows)(struct vfs_handle_struct *handle,
 290                                    struct byte_range_lock *br_lck,
 291                                    struct lock_struct *plock,
 292                                    struct blocking_lock_record *blr);
 293
 294         bool (*strict_lock)(struct vfs_handle_struct *handle,
 295                             struct files_struct *fsp,
 296                             struct lock_struct *plock);
 297
 298         void (*strict_unlock)(struct vfs_handle_struct *handle,
 299                               struct files_struct *fsp,
 300                               struct lock_struct *plock);
 301
 302         /* NT ACL operations. */
 303
 304         NTSTATUS (*fget_nt_acl)(struct vfs_handle_struct *handle,
 305                                 struct files_struct *fsp,
 306                                 uint32 security_info,
 307                                 struct security_descriptor **ppdesc);
 308         NTSTATUS (*get_nt_acl)(struct vfs_handle_struct *handle,
 309                                const char *name,
 310                                uint32 security_info,
 311                                struct security_descriptor **ppdesc);
 312         NTSTATUS (*fset_nt_acl)(struct vfs_handle_struct *handle,
 313                                 struct files_struct *fsp,
 314                                 uint32 security_info_sent,
 315                                 const struct security_descriptor *psd);
 316
 317         /* POSIX ACL operations. */
 318
 319         int (*chmod_acl)(struct vfs_handle_struct *handle, const char *name, mode_t mode);
 320         int (*fchmod_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 321
 322         int (*sys_acl_get_entry)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p);
 323         int (*sys_acl_get_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p);
 324         int (*sys_acl_get_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p);
 325         void * (*sys_acl_get_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d);
 326         SMB_ACL_T (*sys_acl_get_file)(struct vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type);
 327         SMB_ACL_T (*sys_acl_get_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 328         int (*sys_acl_clear_perms)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset);
 329         int (*sys_acl_add_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
 330         char * (*sys_acl_to_text)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, ssize_t *plen);
 331         SMB_ACL_T (*sys_acl_init)(struct vfs_handle_struct *handle, int count);
 332         int (*sys_acl_create_entry)(struct vfs_handle_struct *handle, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
 333         int (*sys_acl_set_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype);
 334         int (*sys_acl_set_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, void *qual);
 335         int (*sys_acl_set_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset);
 336         int (*sys_acl_valid)(struct vfs_handle_struct *handle, SMB_ACL_T theacl );
 337         int (*sys_acl_set_file)(struct vfs_handle_struct *handle, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
 338         int (*sys_acl_set_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
 339         int (*sys_acl_delete_def_file)(struct vfs_handle_struct *handle, const char *path);
 340         int (*sys_acl_get_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
 341         int (*sys_acl_free_text)(struct vfs_handle_struct *handle, char *text);
 342         int (*sys_acl_free_acl)(struct vfs_handle_struct *handle, SMB_ACL_T posix_acl);
 343         int (*sys_acl_free_qualifier)(struct vfs_handle_struct *handle, void *qualifier, SMB_ACL_TAG_T tagtype);
 344
 345         /* EA operations. */
 346         ssize_t (*getxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
 347         ssize_t (*lgetxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
 348         ssize_t (*fgetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
 349         ssize_t (*listxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
 350         ssize_t (*llistxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
 351         ssize_t (*flistxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
 352         int (*removexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
 353         int (*lremovexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
 354         int (*fremovexattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
 355         int (*setxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
 356         int (*lsetxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
 357         int (*fsetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
 358
 359         /* aio operations */
 360         int (*aio_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 361         int (*aio_write)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 362         ssize_t (*aio_return_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 363         int (*aio_cancel)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 364         int (*aio_error_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 365         int (*aio_fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_STRUCT_AIOCB *aiocb);
 366         int (*aio_suspend)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_AIOCB * const aiocb[], int n, const struct timespec *timeout);
 367         bool (*aio_force)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 368
 369         /* offline operations */
 370         bool (*is_offline)(struct vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf);
 371         int (*set_offline)(struct vfs_handle_struct *handle, const char *path);
 372 };
 373
 374 /*
 375     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
 376     which describes all operations this module is willing to intercept.
 377     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
 378     using this information.
 379 */
 380
 381 typedef struct vfs_handle_struct {
 382         struct vfs_handle_struct  *next, *prev;
 383         const char *param;
 384         struct connection_struct *conn;
 385         const struct vfs_fn_pointers *fns;
 386         void *data;
 387         void (*free_data)(void **data);
 388 } vfs_handle_struct;
 389
 390
 391 typedef struct vfs_statvfs_struct {
 392         /* For undefined recommended transfer size return -1 in that field */
 393         uint32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
 394         uint32 BlockSize;
 395
 396         /*
 397          The next three fields are in terms of the block size.
 398          (above). If block size is unknown, 4096 would be a
 399          reasonable block size for a server to report.
 400          Note that returning the blocks/blocksavail removes need
 401          to make a second call (to QFSInfo level 0x103 to get this info.
 402          UserBlockAvail is typically less than or equal to BlocksAvail,
 403          if no distinction is made return the same value in each.
 404         */
 405
 406         uint64_t TotalBlocks;
 407         uint64_t BlocksAvail;       /* bfree */
 408         uint64_t UserBlocksAvail;   /* bavail */
 409
 410         /* For undefined Node fields or FSID return -1 */
 411         uint64_t TotalFileNodes;
 412         uint64_t FreeFileNodes;
 413         uint64_t FsIdentifier;   /* fsid */
 414         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
 415         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
 416
 417         int FsCapabilities;
 418 } vfs_statvfs_struct;
 419
 420 /* Add a new FSP extension of the given type. Returns a pointer to the
 421  * extenstion data.
 422  */
 423 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
 424     vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
 425
 426 /* Return a pointer to the existing FSP extension data. */
 427 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
 428     vfs_fetch_fsp_extension(handle, (fsp))
 429
 430 /* Return the talloc context associated with an FSP extension. */
 431 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
 432     vfs_memctx_fsp_extension(handle, (fsp))
 433
 434 /* Remove and destroy an FSP extension. */
 435 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
 436     vfs_remove_fsp_extension((handle), (fsp))
 437
 438 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
 439         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
 440                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",FUNCTION_MACRO)); \
 441                 ret; \
 442         } \
 443 }
 444
 445 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
 446         if (!(handle)) { \
 447                 DEBUG(0,("%s() failed to set handle->data!\n",FUNCTION_MACRO)); \
 448                 ret; \
 449         } else { \
 450                 if ((handle)->free_data) { \
 451                         (handle)->free_data(&(handle)->data); \
 452                 } \
 453                 (handle)->data = (void *)datap; \
 454                 (handle)->free_data = free_fn; \
 455         } \
 456 }
 457
 458 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
 459         if ((handle) && (handle)->free_data) { \
 460                 (handle)->free_data(&(handle)->data); \
 461         } \
 462 }
 463
 464 /* Check whether module-specific data handle was already allocated or not */
 465 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
 466
 467 #define SMB_VFS_OP(x) ((void *) x)
 468
 469 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
 470
 471 #include "vfs_macros.h"
 472
 473 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
 474                          const char *service, const char *user);
 475 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
 476 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
 477                                 const char *path, bool small_query,
 478                                 uint64_t *bsize, uint64_t *dfree,
 479                                 uint64_t *dsize);
 480 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
 481                            enum SMB_QUOTA_TYPE qtype, unid_t id,
 482                            SMB_DISK_QUOTA *qt);
 483 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
 484                            enum SMB_QUOTA_TYPE qtype, unid_t id,
 485                            SMB_DISK_QUOTA *qt);
 486 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
 487                                       struct files_struct *fsp,
 488                                       SHADOW_COPY_DATA *shadow_copy_data,
 489                                       bool labels);
 490 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
 491                          struct vfs_statvfs_struct *statbuf);
 492 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
 493                         enum timestamp_set_resolution *p_ts_res);
 494 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
 495                                      const char *fname, const char *mask,
 496                                      uint32 attributes);
 497 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
 498                                         SMB_STRUCT_DIR *dirp,
 499                                         SMB_STRUCT_STAT *sbuf);
 500 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
 501                           SMB_STRUCT_DIR *dirp, long offset);
 502 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
 503                           SMB_STRUCT_DIR *dirp);
 504 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
 505                              SMB_STRUCT_DIR *dirp);
 506 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
 507                        mode_t mode);
 508 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path);
 509 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
 510                           SMB_STRUCT_DIR *dir);
 511 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
 512                                  SMB_STRUCT_DIR *dirp);
 513 int smb_vfs_call_open(struct vfs_handle_struct *handle,
 514                       struct smb_filename *smb_fname, struct files_struct *fsp,
 515                       int flags, mode_t mode);
 516 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
 517                                   struct smb_request *req,
 518                                   uint16_t root_dir_fid,
 519                                   struct smb_filename *smb_fname,
 520                                   uint32_t access_mask,
 521                                   uint32_t share_access,
 522                                   uint32_t create_disposition,
 523                                   uint32_t create_options,
 524                                   uint32_t file_attributes,
 525                                   uint32_t oplock_request,
 526                                   uint64_t allocation_size,
 527                                   struct security_descriptor *sd,
 528                                   struct ea_list *ea_list,
 529                                   files_struct **result,
 530                                   int *pinfo);
 531 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
 532                           struct files_struct *fsp);
 533 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
 534                               struct files_struct *fsp, void *data, size_t n);
 535 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
 536                            struct files_struct *fsp, void *data, size_t n,
 537                            SMB_OFF_T offset);
 538 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
 539                            struct files_struct *fsp, const void *data,
 540                            size_t n);
 541 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
 542                             struct files_struct *fsp, const void *data,
 543                             size_t n, SMB_OFF_T offset);
 544 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
 545                              struct files_struct *fsp, SMB_OFF_T offset,
 546                              int whence);
 547 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
 548                               files_struct *fromfsp, const DATA_BLOB *header,
 549                               SMB_OFF_T offset, size_t count);
 550 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
 551                               files_struct *tofsp, SMB_OFF_T offset,
 552                               size_t count);
 553 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
 554                         const struct smb_filename *smb_fname_src,
 555                         const struct smb_filename *smb_fname_dst);
 556 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
 557                        struct files_struct *fsp);
 558 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
 559                       struct smb_filename *smb_fname);
 560 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
 561                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 562 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
 563                        struct smb_filename *smb_filename);
 564 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
 565                                      struct files_struct *fsp,
 566                                      const SMB_STRUCT_STAT *sbuf);
 567 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
 568                         const struct smb_filename *smb_fname);
 569 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
 570                        mode_t mode);
 571 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
 572                         struct files_struct *fsp, mode_t mode);
 573 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
 574                        uid_t uid, gid_t gid);
 575 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
 576                         struct files_struct *fsp, uid_t uid, gid_t gid);
 577 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
 578                         uid_t uid, gid_t gid);
 579 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path);
 580 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf);
 581 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
 582                         const struct smb_filename *smb_fname,
 583                         struct smb_file_time *ft);
 584 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
 585                            struct files_struct *fsp, SMB_OFF_T offset);
 586 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
 587                        struct files_struct *fsp, int op, SMB_OFF_T offset,
 588                        SMB_OFF_T count, int type);
 589 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
 590                               struct files_struct *fsp, uint32 share_mode);
 591 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
 592                                 struct files_struct *fsp, int leasetype);
 593 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
 594                           struct files_struct *fsp, SMB_OFF_T *poffset,
 595                           SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 596 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
 597                          const char *newpath);
 598 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
 599                               const char *path, char *buf, size_t bufsiz);
 600 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
 601                       const char *newpath);
 602 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
 603                        mode_t mode, SMB_DEV_T dev);
 604 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
 605                             const char *path, char *resolved_path);
 606 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
 607                                    struct sys_notify_context *ctx,
 608                                    struct notify_entry *e,
 609                                    void (*callback)(struct sys_notify_context *ctx,
 610                                                     void *private_data,
 611                                                     struct notify_event *ev),
 612                                    void *private_data, void *handle_p);
 613 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
 614                          unsigned int flags);
 615 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
 616                                            const SMB_STRUCT_STAT *sbuf);
 617 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
 618                                  struct files_struct *fsp,
 619                                  const char *fname,
 620                                  TALLOC_CTX *mem_ctx,
 621                                  unsigned int *num_streams,
 622                                  struct stream_struct **streams);
 623 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
 624                                    const char *path, const char *name,
 625                                    TALLOC_CTX *mem_ctx, char **found_name);
 626 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
 627                                      const char *filename);
 628 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
 629                                        struct byte_range_lock *br_lck,
 630                                        struct lock_struct *plock,
 631                                        bool blocking_lock,
 632                                        struct blocking_lock_record *blr);
 633 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
 634                                      struct messaging_context *msg_ctx,
 635                                      struct byte_range_lock *br_lck,
 636                                      const struct lock_struct *plock);
 637 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
 638                                      struct byte_range_lock *br_lck,
 639                                      struct lock_struct *plock,
 640                                      struct blocking_lock_record *blr);
 641 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
 642                               struct files_struct *fsp,
 643                               struct lock_struct *plock);
 644 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
 645                                 struct files_struct *fsp,
 646                                 struct lock_struct *plock);
 647 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
 648                                   struct files_struct *fsp,
 649                                   uint32 security_info,
 650                                   struct security_descriptor **ppdesc);
 651 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
 652                                  const char *name,
 653                                  uint32 security_info,
 654                                  struct security_descriptor **ppdesc);
 655 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
 656                                   struct files_struct *fsp,
 657                                   uint32 security_info_sent,
 658                                   const struct security_descriptor *psd);
 659 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
 660                            mode_t mode);
 661 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
 662                             struct files_struct *fsp, mode_t mode);
 663 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
 664                                    SMB_ACL_T theacl, int entry_id,
 665                                    SMB_ACL_ENTRY_T *entry_p);
 666 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
 667                                       SMB_ACL_ENTRY_T entry_d,
 668                                       SMB_ACL_TAG_T *tag_type_p);
 669 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
 670                                      SMB_ACL_ENTRY_T entry_d,
 671                                      SMB_ACL_PERMSET_T *permset_p);
 672 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
 673                                           SMB_ACL_ENTRY_T entry_d);
 674 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
 675                                         const char *path_p,
 676                                         SMB_ACL_TYPE_T type);
 677 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
 678                                       struct files_struct *fsp);
 679 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
 680                                      SMB_ACL_PERMSET_T permset);
 681 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
 682                                   SMB_ACL_PERMSET_T permset,
 683                                   SMB_ACL_PERM_T perm);
 684 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
 685                                     SMB_ACL_T theacl, ssize_t *plen);
 686 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
 687                                     int count);
 688 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
 689                                       SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
 690 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
 691                                       SMB_ACL_ENTRY_T entry,
 692                                       SMB_ACL_TAG_T tagtype);
 693 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
 694                                        SMB_ACL_ENTRY_T entry, void *qual);
 695 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
 696                                      SMB_ACL_ENTRY_T entry,
 697                                      SMB_ACL_PERMSET_T permset);
 698 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
 699                                SMB_ACL_T theacl);
 700 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
 701                                   const char *name, SMB_ACL_TYPE_T acltype,
 702                                   SMB_ACL_T theacl);
 703 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
 704                                 struct files_struct *fsp, SMB_ACL_T theacl);
 705 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
 706                                          const char *path);
 707 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
 708                                   SMB_ACL_PERMSET_T permset,
 709                                   SMB_ACL_PERM_T perm);
 710 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
 711                                    char *text);
 712 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
 713                                   SMB_ACL_T posix_acl);
 714 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
 715                                         void *qualifier, SMB_ACL_TAG_T tagtype);
 716 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
 717                               const char *path, const char *name, void *value,
 718                               size_t size);
 719 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
 720                                const char *path, const char *name, void *value,
 721                                size_t size);
 722 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
 723                                struct files_struct *fsp, const char *name,
 724                                void *value, size_t size);
 725 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
 726                                const char *path, char *list, size_t size);
 727 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
 728                                 const char *path, char *list, size_t size);
 729 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
 730                                 struct files_struct *fsp, char *list,
 731                                 size_t size);
 732 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
 733                              const char *path, const char *name);
 734 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
 735                               const char *path, const char *name);
 736 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
 737                               struct files_struct *fsp, const char *name);
 738 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
 739                           const char *name, const void *value, size_t size,
 740                           int flags);
 741 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
 742                            const char *name, const void *value, size_t size,
 743                            int flags);
 744 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
 745                            struct files_struct *fsp, const char *name,
 746                            const void *value, size_t size, int flags);
 747 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
 748                           struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 749 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
 750                            struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 751 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
 752                                    struct files_struct *fsp,
 753                                    SMB_STRUCT_AIOCB *aiocb);
 754 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
 755                             struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 756 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
 757                               struct files_struct *fsp,
 758                               SMB_STRUCT_AIOCB *aiocb);
 759 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
 760                            struct files_struct *fsp, int op,
 761                            SMB_STRUCT_AIOCB *aiocb);
 762 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
 763                              struct files_struct *fsp,
 764                              const SMB_STRUCT_AIOCB * const aiocb[], int n,
 765                              const struct timespec *timeout);
 766 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
 767                             struct files_struct *fsp);
 768 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
 769                              const char *path, SMB_STRUCT_STAT *sbuf);
 770 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
 771                              const char *path);
 772
 773 #endif /* _VFS_H */