/* 

   Unix SMB/CIFS implementation.

   SMB2 client keepalive handling

   Copyright (C) Andrew Tridgell 2005

   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 keepalive request

*/

struct smb2_request *smb2_keepalive_send(struct smb2_transport *transport,

           struct smb2_session *session)

{

  struct smb2_request *req;

  req = smb2_request_init(transport, SMB2_OP_KEEPALIVE, 0x04, false, 0);

  if (req == NULL) return NULL;

  SSVAL(req->out.body, 0x02, 0);

  req->session = session;

  smb2_transport_send(req);

  return req;

}

/*

  recv a keepalive reply

*/

NTSTATUS smb2_keepalive_recv(struct smb2_request *req)

{

  if (!smb2_request_receive(req) || 

      !smb2_request_is_ok(req)) {

    return smb2_request_destroy(req);

  }

  SMB2_CHECK_PACKET_RECV(req, 0x04, false);

  return smb2_request_destroy(req);

}

/*

  sync keepalive request

*/

NTSTATUS smb2_keepalive(struct smb2_transport *transport)

{

  struct smb2_request *req = smb2_keepalive_send(transport, NULL);

  return smb2_keepalive_recv(req);

}