/*

   Unix SMB/CIFS implementation.

   shadow copy file operations

   Copyright (C) Andrew Tridgell 2007

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "includes.h"

#include "libcli/raw/libcliraw.h"

#include "libcli/raw/raw_proto.h"

#include "../libcli/smb/smb_constants.h"

/*

   get shadow volume data

*/

_PUBLIC_ NTSTATUS smb_raw_shadow_data(struct smbcli_tree *tree,

              TALLOC_CTX *mem_ctx, struct smb_shadow_copy *info)

{

  union smb_ioctl nt;

  NTSTATUS status;

  DATA_BLOB blob;

  uint32_t dlength;

  int i;

  uint32_t ofs;

  nt.ntioctl.level        = RAW_IOCTL_NTIOCTL;

  nt.ntioctl.in.function  = FSCTL_GET_SHADOW_COPY_DATA;

  nt.ntioctl.in.file.fnum = info->in.file.fnum;

  nt.ntioctl.in.fsctl     = true;

  nt.ntioctl.in.filter    = 0;

  nt.ntioctl.in.max_data  = info->in.max_data;

  nt.ntioctl.in.blob      = data_blob(NULL, 0);

  status = smb_raw_ioctl(tree, mem_ctx, &nt);

  if (!NT_STATUS_IS_OK(status)) {

    return status;

  }

  blob = nt.ntioctl.out.blob;

  if (blob.length < 12) {

    return NT_STATUS_INVALID_NETWORK_RESPONSE;

  }

  info->out.num_volumes = IVAL(blob.data, 0);

  info->out.num_names   = IVAL(blob.data, 4);

  dlength               = IVAL(blob.data, 8);

  if (dlength > blob.length - 12) {

    return NT_STATUS_INVALID_NETWORK_RESPONSE;

  }

  info->out.names = talloc_array(mem_ctx, const char *, info->out.num_names);

  NT_STATUS_HAVE_NO_MEMORY(info->out.names);

  ofs = 12;

  for (i=0;i<info->out.num_names;i++) {

    size_t len;

    len = smbcli_blob_pull_ucs2(info->out.names,

              &blob, &info->out.names[i],

              blob.data+ofs, -1, STR_TERMINATE);

    if (len == 0) {

      return NT_STATUS_INVALID_NETWORK_RESPONSE;

    }

    ofs += len;

  }

  return status;

}