Line data    Source code

       1             : /* 
       2             :    Unix SMB/CIFS implementation.
       3             : 
       4             :    SMB2 client keepalive handling
       5             : 
       6             :    Copyright (C) Andrew Tridgell 2005
       7             :    
       8             :    This program is free software; you can redistribute it and/or modify
       9             :    it under the terms of the GNU General Public License as published by
      10             :    the Free Software Foundation; either version 3 of the License, or
      11             :    (at your option) any later version.
      12             :    
      13             :    This program is distributed in the hope that it will be useful,
      14             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16             :    GNU General Public License for more details.
      17             :    
      18             :    You should have received a copy of the GNU General Public License
      19             :    along with this program.  If not, see <http://www.gnu.org/licenses/>.
      20             : */
      21             : 
      22             : #include "includes.h"
      23             : #include "libcli/smb2/smb2.h"
      24             : #include "libcli/smb2/smb2_calls.h"
      25             : 
      26             : /*
      27             :   send a keepalive request
      28             : */
      29          13 : struct smb2_request *smb2_keepalive_send(struct smb2_transport *transport,
      30             :                                          struct smb2_session *session)
      31             : {
      32             :         struct smb2_request *req;
      33             : 
      34          13 :         req = smb2_request_init(transport, SMB2_OP_KEEPALIVE, 0x04, false, 0);
      35          13 :         if (req == NULL) return NULL;
      36             : 
      37          13 :         SSVAL(req->out.body, 0x02, 0);
      38             : 
      39          13 :         req->session = session;
      40             : 
      41          13 :         smb2_transport_send(req);
      42             : 
      43          13 :         return req;
      44             : }
      45             : 
      46             : 
      47             : /*
      48             :   recv a keepalive reply
      49             : */
      50          13 : NTSTATUS smb2_keepalive_recv(struct smb2_request *req)
      51             : {
      52          20 :         if (!smb2_request_receive(req) || 
      53          13 :             !smb2_request_is_ok(req)) {
      54           0 :                 return smb2_request_destroy(req);
      55             :         }
      56             : 
      57          13 :         SMB2_CHECK_PACKET_RECV(req, 0x04, false);
      58          13 :         return smb2_request_destroy(req);
      59             : }
      60             : 
      61             : /*
      62             :   sync keepalive request
      63             : */
      64           9 : NTSTATUS smb2_keepalive(struct smb2_transport *transport)
      65             : {
      66           9 :         struct smb2_request *req = smb2_keepalive_send(transport, NULL);
      67           9 :         return smb2_keepalive_recv(req);
      68             : }