/*

   Unix SMB/CIFS implementation.

   SMB2 client oplock break handling

   Copyright (C) Stefan Metzmacher 2008

   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/smb2/smb2.h"

#include "libcli/smb2/smb2_calls.h"

/*

  send a break request

*/

struct smb2_request *smb2_break_send(struct smb2_tree *tree, struct smb2_break *io)

{

  struct smb2_request *req;

  req = smb2_request_init_tree(tree, SMB2_OP_BREAK, 0x18, false, 0);

  if (req == NULL) return NULL;

  SCVAL(req->out.body, 0x02, io->in.oplock_level);

  SCVAL(req->out.body, 0x03, io->in.reserved);

  SIVAL(req->out.body, 0x04, io->in.reserved2);

  smb2_push_handle(req->out.body+0x08, &io->in.file.handle);

  smb2_transport_send(req);

  return req;

}

/*

  recv a break reply

*/

NTSTATUS smb2_break_recv(struct smb2_request *req, struct smb2_break *io)

{

  if (!smb2_request_receive(req) ||

      !smb2_request_is_ok(req)) {

    return smb2_request_destroy(req);

  }

  SMB2_CHECK_PACKET_RECV(req, 0x18, false);

  io->out.oplock_level  = CVAL(req->in.body, 0x02);

  io->out.reserved  = CVAL(req->in.body, 0x03);

  io->out.reserved2 = IVAL(req->in.body, 0x04);

  smb2_pull_handle(req->in.body+0x08, &io->out.file.handle);

  return smb2_request_destroy(req);

}

/*

  sync flush request

*/

NTSTATUS smb2_break(struct smb2_tree *tree, struct smb2_break *io)

{

  struct smb2_request *req = smb2_break_send(tree, io);

  return smb2_break_recv(req, io);

}