source3/modules/vfs_offline.c

   1 /*
   2   Unix SMB/CIFS implementation.
   3   Samba VFS module for marking all files as offline.
   4
   5   (c) Uri Simchoni, 2015
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22
  23 static uint32_t offline_fs_capabilities(struct vfs_handle_struct *handle,
  24                                         enum timestamp_set_resolution *p_ts_res)
  25 {
  26         return SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res) |
  27                FILE_SUPPORTS_REMOTE_STORAGE;
  28 }
  29
  30 static NTSTATUS offline_get_dos_attributes(struct vfs_handle_struct *handle,
  31                                            struct smb_filename *smb_fname,
  32                                            uint32_t *dosmode)
  33 {
  34         *dosmode |= FILE_ATTRIBUTE_OFFLINE;
  35         return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle, smb_fname, dosmode);
  36 }
  37
  38 static NTSTATUS offline_fget_dos_attributes(struct vfs_handle_struct *handle,
  39                                             struct files_struct *fsp,
  40                                             uint32_t *dosmode)
  41 {
  42         *dosmode |= FILE_ATTRIBUTE_OFFLINE;
  43         return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle, fsp, dosmode);
  44 }
  45
  46 static struct vfs_fn_pointers offline_fns = {
  47     .fs_capabilities_fn = offline_fs_capabilities,
  48         .get_dos_attributes_fn = offline_get_dos_attributes,
  49         .get_dos_attributes_send_fn = vfs_not_implemented_get_dos_attributes_send,
  50         .get_dos_attributes_recv_fn = vfs_not_implemented_get_dos_attributes_recv,
  51         .fget_dos_attributes_fn = offline_fget_dos_attributes,
  52 };
  53
  54 static_decl_vfs;
  55 NTSTATUS vfs_offline_init(TALLOC_CTX *ctx)
  56 {
  57         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "offline",
  58                                 &offline_fns);
  59 }