source3/modules/vfs_onefs.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * Support for OneFS
   4  *
   5  * Copyright (C) Tim Prouty, 2008
   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 #include "onefs.h"
  23
  24 #undef DBGC_CLASS
  25 #define DBGC_CLASS DBGC_VFS
  26
  27 static int onefs_mkdir(vfs_handle_struct *handle, const char *path,
  28                        mode_t mode)
  29 {
  30         /* SMB_VFS_MKDIR should never be called in vfs_onefs */
  31         SMB_ASSERT(false);
  32         return SMB_VFS_NEXT_MKDIR(handle, path, mode);
  33 }
  34
  35 static int onefs_open(vfs_handle_struct *handle, const char *fname,
  36                       files_struct *fsp, int flags, mode_t mode)
  37 {
  38         /* SMB_VFS_OPEN should never be called in vfs_onefs */
  39         SMB_ASSERT(false);
  40         return SMB_VFS_NEXT_OPEN(handle, fname, fsp, flags, mode);
  41 }
  42
  43 static int onefs_statvfs(vfs_handle_struct *handle, const char *path,
  44                          vfs_statvfs_struct *statbuf)
  45 {
  46         struct statvfs statvfs_buf;
  47         int result;
  48
  49         DEBUG(5, ("Calling SMB_STAT_VFS \n"));
  50         result = statvfs(path, &statvfs_buf);
  51         ZERO_STRUCTP(statbuf);
  52
  53         if (!result) {
  54                 statbuf->OptimalTransferSize = statvfs_buf.f_iosize;
  55                 statbuf->BlockSize = statvfs_buf.f_bsize;
  56                 statbuf->TotalBlocks = statvfs_buf.f_blocks;
  57                 statbuf->BlocksAvail = statvfs_buf.f_bfree;
  58                 statbuf->UserBlocksAvail = statvfs_buf.f_bavail;
  59                 statbuf->TotalFileNodes = statvfs_buf.f_files;
  60                 statbuf->FreeFileNodes = statvfs_buf.f_ffree;
  61                 statbuf->FsIdentifier =
  62                     (((uint64_t)statvfs_buf.f_fsid.val[0]<<32) &
  63                         0xffffffff00000000LL) |
  64                     (uint64_t)statvfs_buf.f_fsid.val[1];
  65         }
  66         return result;
  67 }
  68
  69 static uint32_t onefs_fs_capabilities(struct vfs_handle_struct *handle)
  70 {
  71         return SMB_VFS_NEXT_FS_CAPABILITIES(handle) | FILE_NAMED_STREAMS;
  72 }
  73
  74 static vfs_op_tuple onefs_ops[] = {
  75         {SMB_VFS_OP(onefs_fs_capabilities), SMB_VFS_OP_FS_CAPABILITIES,
  76          SMB_VFS_LAYER_TRANSPARENT},
  77         {SMB_VFS_OP(onefs_mkdir), SMB_VFS_OP_MKDIR,
  78          SMB_VFS_LAYER_OPAQUE},
  79         {SMB_VFS_OP(onefs_open), SMB_VFS_OP_OPEN,
  80          SMB_VFS_LAYER_OPAQUE},
  81         {SMB_VFS_OP(onefs_create_file), SMB_VFS_OP_CREATE_FILE,
  82          SMB_VFS_LAYER_OPAQUE},
  83         {SMB_VFS_OP(onefs_close), SMB_VFS_OP_CLOSE,
  84          SMB_VFS_LAYER_TRANSPARENT},
  85         {SMB_VFS_OP(onefs_rename), SMB_VFS_OP_RENAME,
  86          SMB_VFS_LAYER_TRANSPARENT},
  87         {SMB_VFS_OP(onefs_stat), SMB_VFS_OP_STAT,
  88          SMB_VFS_LAYER_TRANSPARENT},
  89         {SMB_VFS_OP(onefs_fstat), SMB_VFS_OP_FSTAT,
  90          SMB_VFS_LAYER_TRANSPARENT},
  91         {SMB_VFS_OP(onefs_lstat), SMB_VFS_OP_LSTAT,
  92          SMB_VFS_LAYER_TRANSPARENT},
  93         {SMB_VFS_OP(onefs_unlink), SMB_VFS_OP_UNLINK,
  94          SMB_VFS_LAYER_TRANSPARENT},
  95         {SMB_VFS_OP(onefs_chflags), SMB_VFS_OP_CHFLAGS,
  96          SMB_VFS_LAYER_TRANSPARENT},
  97         {SMB_VFS_OP(onefs_streaminfo), SMB_VFS_OP_STREAMINFO,
  98          SMB_VFS_LAYER_OPAQUE},
  99         {SMB_VFS_OP(onefs_fget_nt_acl), SMB_VFS_OP_FGET_NT_ACL,
 100          SMB_VFS_LAYER_OPAQUE},
 101         {SMB_VFS_OP(onefs_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
 102          SMB_VFS_LAYER_OPAQUE},
 103         {SMB_VFS_OP(onefs_fset_nt_acl), SMB_VFS_OP_FSET_NT_ACL,
 104          SMB_VFS_LAYER_OPAQUE},
 105         {SMB_VFS_OP(onefs_statvfs), SMB_VFS_OP_STATVFS,
 106          SMB_VFS_LAYER_OPAQUE},
 107         {SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}
 108 };
 109
 110 NTSTATUS vfs_onefs_init(void)
 111 {
 112         return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "onefs",
 113                                 onefs_ops);
 114 }