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
 125 #define SMB_VFS_INTERFACE_VERSION 26
 126
 127
 128 /* to bug old modules which are trying to compile with the old functions */
 129 #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 };
 130 #define lp_parm_string __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string { \
 131   __ERROR_please_port_lp_parm_string_to_lp_parm_const_string_or_lp_parm_talloc_string };
 132 #define lp_vfs_options __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead { \
 133   __ERROR_please_donot_use_lp_vfs_options_anymore_use_lp_parm_xxxx_functions_instead };
 134
 135 /*
 136     All intercepted VFS operations must be declared as static functions inside module source
 137     in order to keep smbd namespace unpolluted. See source of audit, extd_audit, fake_perms and recycle
 138     example VFS modules for more details.
 139 */
 140
 141 /* VFS operations structure */
 142
 143 struct vfs_handle_struct;
 144 struct connection_struct;
 145 struct files_struct;
 146 struct security_descriptor;
 147 struct vfs_statvfs_struct;
 148 struct smb_request;
 149 struct ea_list;
 150 struct smb_file_time;
 151 struct blocking_lock_record;
 152 struct smb_filename;
 153
 154 #define VFS_FIND(__fn__) while (handle->fns->__fn__==NULL) { \
 155                                 handle = handle->next; \
 156                          }
 157
 158 /*
 159     Available VFS operations. These values must be in sync with vfs_ops struct
 160     (struct vfs_fn_pointers and struct vfs_handle_pointers inside of struct vfs_ops).
 161     In particular, if new operations are added to vfs_ops, appropriate constants
 162     should be added to vfs_op_type so that order of them kept same as in vfs_ops.
 163 */
 164
 165 struct vfs_fn_pointers {
 166         /* Disk operations */
 167
 168         int (*connect_fn)(struct vfs_handle_struct *handle, const char *service, const char *user);
 169         void (*disconnect)(struct vfs_handle_struct *handle);
 170         uint64_t (*disk_free)(struct vfs_handle_struct *handle, const char *path, bool small_query, uint64_t *bsize,
 171                               uint64_t *dfree, uint64_t *dsize);
 172         int (*get_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 173         int (*set_quota)(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt);
 174         int (*get_shadow_copy_data)(struct vfs_handle_struct *handle, struct files_struct *fsp, SHADOW_COPY_DATA *shadow_copy_data, bool labels);
 175         int (*statvfs)(struct vfs_handle_struct *handle, const char *path, struct vfs_statvfs_struct *statbuf);
 176         uint32_t (*fs_capabilities)(struct vfs_handle_struct *handle);
 177
 178         /* Directory operations */
 179
 180         SMB_STRUCT_DIR *(*opendir)(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attributes);
 181         SMB_STRUCT_DIRENT *(*readdir)(struct vfs_handle_struct *handle,
 182                                       SMB_STRUCT_DIR *dirp,
 183                                       SMB_STRUCT_STAT *sbuf);
 184         void (*seekdir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp, long offset);
 185         long (*telldir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 186         void (*rewind_dir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 187         int (*mkdir)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
 188         int (*rmdir)(struct vfs_handle_struct *handle, const char *path);
 189         int (*closedir)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dir);
 190         void (*init_search_op)(struct vfs_handle_struct *handle, SMB_STRUCT_DIR *dirp);
 191
 192         /* File operations */
 193
 194         int (*open)(struct vfs_handle_struct *handle,
 195                     struct smb_filename *smb_fname, files_struct *fsp,
 196                     int flags, mode_t mode);
 197         NTSTATUS (*create_file)(struct vfs_handle_struct *handle,
 198                                 struct smb_request *req,
 199                                 uint16_t root_dir_fid,
 200                                 struct smb_filename *smb_fname,
 201                                 uint32_t access_mask,
 202                                 uint32_t share_access,
 203                                 uint32_t create_disposition,
 204                                 uint32_t create_options,
 205                                 uint32_t file_attributes,
 206                                 uint32_t oplock_request,
 207                                 uint64_t allocation_size,
 208                                 struct security_descriptor *sd,
 209                                 struct ea_list *ea_list,
 210                                 files_struct **result,
 211                                 int *pinfo);
 212         int (*close_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 213         ssize_t (*vfs_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n);
 214         ssize_t (*pread)(struct vfs_handle_struct *handle, struct files_struct *fsp, void *data, size_t n, SMB_OFF_T offset);
 215         ssize_t (*write)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n);
 216         ssize_t (*pwrite)(struct vfs_handle_struct *handle, struct files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset);
 217         SMB_OFF_T (*lseek)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset, int whence);
 218         ssize_t (*sendfile)(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *header, SMB_OFF_T offset, size_t count);
 219         ssize_t (*recvfile)(struct vfs_handle_struct *handle, int fromfd, files_struct *tofsp, SMB_OFF_T offset, size_t count);
 220         int (*rename)(struct vfs_handle_struct *handle,
 221                       const struct smb_filename *smb_fname_src,
 222                       const struct smb_filename *smb_fname_dst);
 223         int (*fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 224         int (*stat)(struct vfs_handle_struct *handle, struct smb_filename *smb_fname);
 225         int (*fstat)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 226         int (*lstat)(struct vfs_handle_struct *handle, struct smb_filename *smb_filename);
 227         uint64_t (*get_alloc_size)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_STAT *sbuf);
 228         int (*unlink)(struct vfs_handle_struct *handle,
 229                       const struct smb_filename *smb_fname);
 230         int (*chmod)(struct vfs_handle_struct *handle, const char *path, mode_t mode);
 231         int (*fchmod)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 232         int (*chown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
 233         int (*fchown)(struct vfs_handle_struct *handle, struct files_struct *fsp, uid_t uid, gid_t gid);
 234         int (*lchown)(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid);
 235         int (*chdir)(struct vfs_handle_struct *handle, const char *path);
 236         char *(*getwd)(struct vfs_handle_struct *handle, char *buf);
 237         int (*ntimes)(struct vfs_handle_struct *handle,
 238                       const struct smb_filename *smb_fname,
 239                       struct smb_file_time *ft);
 240         int (*ftruncate)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T offset);
 241         bool (*lock)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_OFF_T offset, SMB_OFF_T count, int type);
 242         int (*kernel_flock)(struct vfs_handle_struct *handle, struct files_struct *fsp, uint32 share_mode);
 243         int (*linux_setlease)(struct vfs_handle_struct *handle, struct files_struct *fsp, int leasetype);
 244         bool (*getlock)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_OFF_T *poffset, SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 245         int (*symlink)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
 246         int (*vfs_readlink)(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz);
 247         int (*link)(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath);
 248         int (*mknod)(struct vfs_handle_struct *handle, const char *path, mode_t mode, SMB_DEV_T dev);
 249         char *(*realpath)(struct vfs_handle_struct *handle, const char *path, char *resolved_path);
 250         NTSTATUS (*notify_watch)(struct vfs_handle_struct *handle,
 251                                  struct sys_notify_context *ctx,
 252                                  struct notify_entry *e,
 253                                  void (*callback)(struct sys_notify_context *ctx,
 254                                                   void *private_data,
 255                                                   struct notify_event *ev),
 256                                  void *private_data, void *handle_p);
 257         int (*chflags)(struct vfs_handle_struct *handle, const char *path, unsigned int flags);
 258         struct file_id (*file_id_create)(struct vfs_handle_struct *handle,
 259                                          const SMB_STRUCT_STAT *sbuf);
 260
 261         NTSTATUS (*streaminfo)(struct vfs_handle_struct *handle,
 262                                struct files_struct *fsp,
 263                                const char *fname,
 264                                TALLOC_CTX *mem_ctx,
 265                                unsigned int *num_streams,
 266                                struct stream_struct **streams);
 267
 268         int (*get_real_filename)(struct vfs_handle_struct *handle,
 269                                  const char *path,
 270                                  const char *name,
 271                                  TALLOC_CTX *mem_ctx,
 272                                  char **found_name);
 273
 274         const char *(*connectpath)(struct vfs_handle_struct *handle,
 275                                    const char *filename);
 276
 277         NTSTATUS (*brl_lock_windows)(struct vfs_handle_struct *handle,
 278                                      struct byte_range_lock *br_lck,
 279                                      struct lock_struct *plock,
 280                                      bool blocking_lock,
 281                                      struct blocking_lock_record *blr);
 282
 283         bool (*brl_unlock_windows)(struct vfs_handle_struct *handle,
 284                                    struct messaging_context *msg_ctx,
 285                                    struct byte_range_lock *br_lck,
 286                                    const struct lock_struct *plock);
 287
 288         bool (*brl_cancel_windows)(struct vfs_handle_struct *handle,
 289                                    struct byte_range_lock *br_lck,
 290                                    struct lock_struct *plock,
 291                                    struct blocking_lock_record *blr);
 292
 293         bool (*strict_lock)(struct vfs_handle_struct *handle,
 294                             struct files_struct *fsp,
 295                             struct lock_struct *plock);
 296
 297         void (*strict_unlock)(struct vfs_handle_struct *handle,
 298                               struct files_struct *fsp,
 299                               struct lock_struct *plock);
 300
 301         /* NT ACL operations. */
 302
 303         NTSTATUS (*fget_nt_acl)(struct vfs_handle_struct *handle,
 304                                 struct files_struct *fsp,
 305                                 uint32 security_info,
 306                                 struct security_descriptor **ppdesc);
 307         NTSTATUS (*get_nt_acl)(struct vfs_handle_struct *handle,
 308                                const char *name,
 309                                uint32 security_info,
 310                                struct security_descriptor **ppdesc);
 311         NTSTATUS (*fset_nt_acl)(struct vfs_handle_struct *handle,
 312                                 struct files_struct *fsp,
 313                                 uint32 security_info_sent,
 314                                 const struct security_descriptor *psd);
 315
 316         /* POSIX ACL operations. */
 317
 318         int (*chmod_acl)(struct vfs_handle_struct *handle, const char *name, mode_t mode);
 319         int (*fchmod_acl)(struct vfs_handle_struct *handle, struct files_struct *fsp, mode_t mode);
 320
 321         int (*sys_acl_get_entry)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p);
 322         int (*sys_acl_get_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p);
 323         int (*sys_acl_get_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p);
 324         void * (*sys_acl_get_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry_d);
 325         SMB_ACL_T (*sys_acl_get_file)(struct vfs_handle_struct *handle, const char *path_p, SMB_ACL_TYPE_T type);
 326         SMB_ACL_T (*sys_acl_get_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 327         int (*sys_acl_clear_perms)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset);
 328         int (*sys_acl_add_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
 329         char * (*sys_acl_to_text)(struct vfs_handle_struct *handle, SMB_ACL_T theacl, ssize_t *plen);
 330         SMB_ACL_T (*sys_acl_init)(struct vfs_handle_struct *handle, int count);
 331         int (*sys_acl_create_entry)(struct vfs_handle_struct *handle, SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
 332         int (*sys_acl_set_tag_type)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype);
 333         int (*sys_acl_set_qualifier)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, void *qual);
 334         int (*sys_acl_set_permset)(struct vfs_handle_struct *handle, SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset);
 335         int (*sys_acl_valid)(struct vfs_handle_struct *handle, SMB_ACL_T theacl );
 336         int (*sys_acl_set_file)(struct vfs_handle_struct *handle, const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl);
 337         int (*sys_acl_set_fd)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_ACL_T theacl);
 338         int (*sys_acl_delete_def_file)(struct vfs_handle_struct *handle, const char *path);
 339         int (*sys_acl_get_perm)(struct vfs_handle_struct *handle, SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm);
 340         int (*sys_acl_free_text)(struct vfs_handle_struct *handle, char *text);
 341         int (*sys_acl_free_acl)(struct vfs_handle_struct *handle, SMB_ACL_T posix_acl);
 342         int (*sys_acl_free_qualifier)(struct vfs_handle_struct *handle, void *qualifier, SMB_ACL_TAG_T tagtype);
 343
 344         /* EA operations. */
 345         ssize_t (*getxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
 346         ssize_t (*lgetxattr)(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size);
 347         ssize_t (*fgetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size);
 348         ssize_t (*listxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
 349         ssize_t (*llistxattr)(struct vfs_handle_struct *handle, const char *path, char *list, size_t size);
 350         ssize_t (*flistxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size);
 351         int (*removexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
 352         int (*lremovexattr)(struct vfs_handle_struct *handle, const char *path, const char *name);
 353         int (*fremovexattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name);
 354         int (*setxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
 355         int (*lsetxattr)(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags);
 356         int (*fsetxattr)(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags);
 357
 358         /* aio operations */
 359         int (*aio_read)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 360         int (*aio_write)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 361         ssize_t (*aio_return_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 362         int (*aio_cancel)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 363         int (*aio_error_fn)(struct vfs_handle_struct *handle, struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 364         int (*aio_fsync)(struct vfs_handle_struct *handle, struct files_struct *fsp, int op, SMB_STRUCT_AIOCB *aiocb);
 365         int (*aio_suspend)(struct vfs_handle_struct *handle, struct files_struct *fsp, const SMB_STRUCT_AIOCB * const aiocb[], int n, const struct timespec *timeout);
 366         bool (*aio_force)(struct vfs_handle_struct *handle, struct files_struct *fsp);
 367
 368         /* offline operations */
 369         bool (*is_offline)(struct vfs_handle_struct *handle, const char *path, SMB_STRUCT_STAT *sbuf);
 370         int (*set_offline)(struct vfs_handle_struct *handle, const char *path);
 371 };
 372
 373 /*
 374     VFS operation description. Each VFS module registers an array of vfs_op_tuple to VFS subsystem,
 375     which describes all operations this module is willing to intercept.
 376     VFS subsystem initializes then the conn->vfs_ops and conn->vfs_opaque_ops structs
 377     using this information.
 378 */
 379
 380 typedef struct vfs_handle_struct {
 381         struct vfs_handle_struct  *next, *prev;
 382         const char *param;
 383         struct connection_struct *conn;
 384         const struct vfs_fn_pointers *fns;
 385         void *data;
 386         void (*free_data)(void **data);
 387 } vfs_handle_struct;
 388
 389
 390 typedef struct vfs_statvfs_struct {
 391         /* For undefined recommended transfer size return -1 in that field */
 392         uint32 OptimalTransferSize;  /* bsize on some os, iosize on other os */
 393         uint32 BlockSize;
 394
 395         /*
 396          The next three fields are in terms of the block size.
 397          (above). If block size is unknown, 4096 would be a
 398          reasonable block size for a server to report.
 399          Note that returning the blocks/blocksavail removes need
 400          to make a second call (to QFSInfo level 0x103 to get this info.
 401          UserBlockAvail is typically less than or equal to BlocksAvail,
 402          if no distinction is made return the same value in each.
 403         */
 404
 405         uint64_t TotalBlocks;
 406         uint64_t BlocksAvail;       /* bfree */
 407         uint64_t UserBlocksAvail;   /* bavail */
 408
 409         /* For undefined Node fields or FSID return -1 */
 410         uint64_t TotalFileNodes;
 411         uint64_t FreeFileNodes;
 412         uint64_t FsIdentifier;   /* fsid */
 413         /* NB Namelen comes from FILE_SYSTEM_ATTRIBUTE_INFO call */
 414         /* NB flags can come from FILE_SYSTEM_DEVICE_INFO call   */
 415
 416         int FsCapabilities;
 417 } vfs_statvfs_struct;
 418
 419 /* Add a new FSP extension of the given type. Returns a pointer to the
 420  * extenstion data.
 421  */
 422 #define VFS_ADD_FSP_EXTENSION(handle, fsp, type, destroy_fn)            \
 423     vfs_add_fsp_extension_notype(handle, (fsp), sizeof(type), (destroy_fn))
 424
 425 /* Return a pointer to the existing FSP extension data. */
 426 #define VFS_FETCH_FSP_EXTENSION(handle, fsp) \
 427     vfs_fetch_fsp_extension(handle, (fsp))
 428
 429 /* Return the talloc context associated with an FSP extension. */
 430 #define VFS_MEMCTX_FSP_EXTENSION(handle, fsp) \
 431     vfs_memctx_fsp_extension(handle, (fsp))
 432
 433 /* Remove and destroy an FSP extension. */
 434 #define VFS_REMOVE_FSP_EXTENSION(handle, fsp) \
 435     vfs_remove_fsp_extension((handle), (fsp))
 436
 437 #define SMB_VFS_HANDLE_GET_DATA(handle, datap, type, ret) { \
 438         if (!(handle)||((datap=(type *)(handle)->data)==NULL)) { \
 439                 DEBUG(0,("%s() failed to get vfs_handle->data!\n",FUNCTION_MACRO)); \
 440                 ret; \
 441         } \
 442 }
 443
 444 #define SMB_VFS_HANDLE_SET_DATA(handle, datap, free_fn, type, ret) { \
 445         if (!(handle)) { \
 446                 DEBUG(0,("%s() failed to set handle->data!\n",FUNCTION_MACRO)); \
 447                 ret; \
 448         } else { \
 449                 if ((handle)->free_data) { \
 450                         (handle)->free_data(&(handle)->data); \
 451                 } \
 452                 (handle)->data = (void *)datap; \
 453                 (handle)->free_data = free_fn; \
 454         } \
 455 }
 456
 457 #define SMB_VFS_HANDLE_FREE_DATA(handle) { \
 458         if ((handle) && (handle)->free_data) { \
 459                 (handle)->free_data(&(handle)->data); \
 460         } \
 461 }
 462
 463 /* Check whether module-specific data handle was already allocated or not */
 464 #define SMB_VFS_HANDLE_TEST_DATA(handle)  ( !(handle) || !(handle)->data ? False : True )
 465
 466 #define SMB_VFS_OP(x) ((void *) x)
 467
 468 #define DEFAULT_VFS_MODULE_NAME "/[Default VFS]/"
 469
 470 #include "vfs_macros.h"
 471
 472 int smb_vfs_call_connect(struct vfs_handle_struct *handle,
 473                          const char *service, const char *user);
 474 void smb_vfs_call_disconnect(struct vfs_handle_struct *handle);
 475 uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
 476                                 const char *path, bool small_query,
 477                                 uint64_t *bsize, uint64_t *dfree,
 478                                 uint64_t *dsize);
 479 int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
 480                            enum SMB_QUOTA_TYPE qtype, unid_t id,
 481                            SMB_DISK_QUOTA *qt);
 482 int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
 483                            enum SMB_QUOTA_TYPE qtype, unid_t id,
 484                            SMB_DISK_QUOTA *qt);
 485 int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
 486                                       struct files_struct *fsp,
 487                                       SHADOW_COPY_DATA *shadow_copy_data,
 488                                       bool labels);
 489 int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
 490                          struct vfs_statvfs_struct *statbuf);
 491 uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle);
 492 SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
 493                                      const char *fname, const char *mask,
 494                                      uint32 attributes);
 495 SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
 496                                         SMB_STRUCT_DIR *dirp,
 497                                         SMB_STRUCT_STAT *sbuf);
 498 void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
 499                           SMB_STRUCT_DIR *dirp, long offset);
 500 long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
 501                           SMB_STRUCT_DIR *dirp);
 502 void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
 503                              SMB_STRUCT_DIR *dirp);
 504 int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
 505                        mode_t mode);
 506 int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path);
 507 int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
 508                           SMB_STRUCT_DIR *dir);
 509 void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
 510                                  SMB_STRUCT_DIR *dirp);
 511 int smb_vfs_call_open(struct vfs_handle_struct *handle,
 512                       struct smb_filename *smb_fname, struct files_struct *fsp,
 513                       int flags, mode_t mode);
 514 NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
 515                                   struct smb_request *req,
 516                                   uint16_t root_dir_fid,
 517                                   struct smb_filename *smb_fname,
 518                                   uint32_t access_mask,
 519                                   uint32_t share_access,
 520                                   uint32_t create_disposition,
 521                                   uint32_t create_options,
 522                                   uint32_t file_attributes,
 523                                   uint32_t oplock_request,
 524                                   uint64_t allocation_size,
 525                                   struct security_descriptor *sd,
 526                                   struct ea_list *ea_list,
 527                                   files_struct **result,
 528                                   int *pinfo);
 529 int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
 530                           struct files_struct *fsp);
 531 ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
 532                               struct files_struct *fsp, void *data, size_t n);
 533 ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
 534                            struct files_struct *fsp, void *data, size_t n,
 535                            SMB_OFF_T offset);
 536 ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
 537                            struct files_struct *fsp, const void *data,
 538                            size_t n);
 539 ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
 540                             struct files_struct *fsp, const void *data,
 541                             size_t n, SMB_OFF_T offset);
 542 SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
 543                              struct files_struct *fsp, SMB_OFF_T offset,
 544                              int whence);
 545 ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
 546                               files_struct *fromfsp, const DATA_BLOB *header,
 547                               SMB_OFF_T offset, size_t count);
 548 ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
 549                               files_struct *tofsp, SMB_OFF_T offset,
 550                               size_t count);
 551 int smb_vfs_call_rename(struct vfs_handle_struct *handle,
 552                         const struct smb_filename *smb_fname_src,
 553                         const struct smb_filename *smb_fname_dst);
 554 int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
 555                        struct files_struct *fsp);
 556 int smb_vfs_call_stat(struct vfs_handle_struct *handle,
 557                       struct smb_filename *smb_fname);
 558 int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
 559                        struct files_struct *fsp, SMB_STRUCT_STAT *sbuf);
 560 int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
 561                        struct smb_filename *smb_filename);
 562 uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
 563                                      struct files_struct *fsp,
 564                                      const SMB_STRUCT_STAT *sbuf);
 565 int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
 566                         const struct smb_filename *smb_fname);
 567 int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
 568                        mode_t mode);
 569 int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
 570                         struct files_struct *fsp, mode_t mode);
 571 int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
 572                        uid_t uid, gid_t gid);
 573 int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
 574                         struct files_struct *fsp, uid_t uid, gid_t gid);
 575 int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
 576                         uid_t uid, gid_t gid);
 577 int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path);
 578 char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf);
 579 int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
 580                         const struct smb_filename *smb_fname,
 581                         struct smb_file_time *ft);
 582 int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
 583                            struct files_struct *fsp, SMB_OFF_T offset);
 584 bool smb_vfs_call_lock(struct vfs_handle_struct *handle,
 585                        struct files_struct *fsp, int op, SMB_OFF_T offset,
 586                        SMB_OFF_T count, int type);
 587 int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
 588                               struct files_struct *fsp, uint32 share_mode);
 589 int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
 590                                 struct files_struct *fsp, int leasetype);
 591 bool smb_vfs_call_getlock(struct vfs_handle_struct *handle,
 592                           struct files_struct *fsp, SMB_OFF_T *poffset,
 593                           SMB_OFF_T *pcount, int *ptype, pid_t *ppid);
 594 int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
 595                          const char *newpath);
 596 int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
 597                               const char *path, char *buf, size_t bufsiz);
 598 int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
 599                       const char *newpath);
 600 int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
 601                        mode_t mode, SMB_DEV_T dev);
 602 char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
 603                             const char *path, char *resolved_path);
 604 NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
 605                                    struct sys_notify_context *ctx,
 606                                    struct notify_entry *e,
 607                                    void (*callback)(struct sys_notify_context *ctx,
 608                                                     void *private_data,
 609                                                     struct notify_event *ev),
 610                                    void *private_data, void *handle_p);
 611 int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
 612                          unsigned int flags);
 613 struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
 614                                            const SMB_STRUCT_STAT *sbuf);
 615 NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
 616                                  struct files_struct *fsp,
 617                                  const char *fname,
 618                                  TALLOC_CTX *mem_ctx,
 619                                  unsigned int *num_streams,
 620                                  struct stream_struct **streams);
 621 int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
 622                                    const char *path, const char *name,
 623                                    TALLOC_CTX *mem_ctx, char **found_name);
 624 const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
 625                                      const char *filename);
 626 NTSTATUS smb_vfs_call_brl_lock_windows(struct vfs_handle_struct *handle,
 627                                        struct byte_range_lock *br_lck,
 628                                        struct lock_struct *plock,
 629                                        bool blocking_lock,
 630                                        struct blocking_lock_record *blr);
 631 bool smb_vfs_call_brl_unlock_windows(struct vfs_handle_struct *handle,
 632                                      struct messaging_context *msg_ctx,
 633                                      struct byte_range_lock *br_lck,
 634                                      const struct lock_struct *plock);
 635 bool smb_vfs_call_brl_cancel_windows(struct vfs_handle_struct *handle,
 636                                      struct byte_range_lock *br_lck,
 637                                      struct lock_struct *plock,
 638                                      struct blocking_lock_record *blr);
 639 bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
 640                               struct files_struct *fsp,
 641                               struct lock_struct *plock);
 642 void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
 643                                 struct files_struct *fsp,
 644                                 struct lock_struct *plock);
 645 NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
 646                                   struct files_struct *fsp,
 647                                   uint32 security_info,
 648                                   struct security_descriptor **ppdesc);
 649 NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
 650                                  const char *name,
 651                                  uint32 security_info,
 652                                  struct security_descriptor **ppdesc);
 653 NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
 654                                   struct files_struct *fsp,
 655                                   uint32 security_info_sent,
 656                                   const struct security_descriptor *psd);
 657 int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
 658                            mode_t mode);
 659 int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
 660                             struct files_struct *fsp, mode_t mode);
 661 int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
 662                                    SMB_ACL_T theacl, int entry_id,
 663                                    SMB_ACL_ENTRY_T *entry_p);
 664 int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
 665                                       SMB_ACL_ENTRY_T entry_d,
 666                                       SMB_ACL_TAG_T *tag_type_p);
 667 int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
 668                                      SMB_ACL_ENTRY_T entry_d,
 669                                      SMB_ACL_PERMSET_T *permset_p);
 670 void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
 671                                           SMB_ACL_ENTRY_T entry_d);
 672 SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
 673                                         const char *path_p,
 674                                         SMB_ACL_TYPE_T type);
 675 SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
 676                                       struct files_struct *fsp);
 677 int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
 678                                      SMB_ACL_PERMSET_T permset);
 679 int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
 680                                   SMB_ACL_PERMSET_T permset,
 681                                   SMB_ACL_PERM_T perm);
 682 char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
 683                                     SMB_ACL_T theacl, ssize_t *plen);
 684 SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
 685                                     int count);
 686 int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
 687                                       SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry);
 688 int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
 689                                       SMB_ACL_ENTRY_T entry,
 690                                       SMB_ACL_TAG_T tagtype);
 691 int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
 692                                        SMB_ACL_ENTRY_T entry, void *qual);
 693 int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
 694                                      SMB_ACL_ENTRY_T entry,
 695                                      SMB_ACL_PERMSET_T permset);
 696 int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
 697                                SMB_ACL_T theacl);
 698 int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
 699                                   const char *name, SMB_ACL_TYPE_T acltype,
 700                                   SMB_ACL_T theacl);
 701 int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
 702                                 struct files_struct *fsp, SMB_ACL_T theacl);
 703 int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
 704                                          const char *path);
 705 int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
 706                                   SMB_ACL_PERMSET_T permset,
 707                                   SMB_ACL_PERM_T perm);
 708 int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
 709                                    char *text);
 710 int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
 711                                   SMB_ACL_T posix_acl);
 712 int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
 713                                         void *qualifier, SMB_ACL_TAG_T tagtype);
 714 ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
 715                               const char *path, const char *name, void *value,
 716                               size_t size);
 717 ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
 718                                const char *path, const char *name, void *value,
 719                                size_t size);
 720 ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
 721                                struct files_struct *fsp, const char *name,
 722                                void *value, size_t size);
 723 ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
 724                                const char *path, char *list, size_t size);
 725 ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
 726                                 const char *path, char *list, size_t size);
 727 ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
 728                                 struct files_struct *fsp, char *list,
 729                                 size_t size);
 730 int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
 731                              const char *path, const char *name);
 732 int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
 733                               const char *path, const char *name);
 734 int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
 735                               struct files_struct *fsp, const char *name);
 736 int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
 737                           const char *name, const void *value, size_t size,
 738                           int flags);
 739 int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
 740                            const char *name, const void *value, size_t size,
 741                            int flags);
 742 int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
 743                            struct files_struct *fsp, const char *name,
 744                            const void *value, size_t size, int flags);
 745 int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
 746                           struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 747 int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
 748                            struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 749 ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
 750                                    struct files_struct *fsp,
 751                                    SMB_STRUCT_AIOCB *aiocb);
 752 int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
 753                             struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb);
 754 int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
 755                               struct files_struct *fsp,
 756                               SMB_STRUCT_AIOCB *aiocb);
 757 int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
 758                            struct files_struct *fsp, int op,
 759                            SMB_STRUCT_AIOCB *aiocb);
 760 int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
 761                              struct files_struct *fsp,
 762                              const SMB_STRUCT_AIOCB * const aiocb[], int n,
 763                              const struct timespec *timeout);
 764 bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
 765                             struct files_struct *fsp);
 766 bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
 767                              const char *path, SMB_STRUCT_STAT *sbuf);
 768 int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
 769                              const char *path);
 770
 771 #endif /* _VFS_H */