source4/libcli/smb2/lease_break.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    SMB2 client oplock break handling
   5
   6    Copyright (C) Zachary Loafman 2009
   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 Lease Break Acknowledgement
  28 */
  29 struct smb2_request *smb2_lease_break_ack_send(struct smb2_tree *tree,
  30                                                struct smb2_lease_break_ack *io)
  31 {
  32         struct smb2_request *req;
  33
  34         req = smb2_request_init_tree(tree, SMB2_OP_BREAK, 0x24, false, 0);
  35         if (req == NULL) return NULL;
  36
  37         SIVAL(req->out.body, 0x02, io->in.reserved);
  38         SIVAL(req->out.body, 0x04, io->in.lease.lease_flags);
  39         memcpy(req->out.body+0x8, &io->in.lease.lease_key,
  40             sizeof(struct smb2_lease_key));
  41         SIVAL(req->out.body, 0x18, io->in.lease.lease_state);
  42         SBVAL(req->out.body, 0x1C, io->in.lease.lease_duration);
  43
  44         smb2_transport_send(req);
  45
  46         return req;
  47 }
  48
  49
  50 /*
  51   Receive a Lease Break Response
  52 */
  53 NTSTATUS smb2_lease_break_ack_recv(struct smb2_request *req,
  54                                    struct smb2_lease_break_ack *io)
  55 {
  56         if (!smb2_request_receive(req) ||
  57             !smb2_request_is_ok(req)) {
  58                 return smb2_request_destroy(req);
  59         }
  60
  61         SMB2_CHECK_PACKET_RECV(req, 0x24, false);
  62
  63         io->out.reserved                = IVAL(req->in.body, 0x02);
  64         io->out.lease.lease_flags       = IVAL(req->in.body, 0x04);
  65         memcpy(&io->out.lease.lease_key, req->in.body+0x8,
  66             sizeof(struct smb2_lease_key));
  67         io->out.lease.lease_state       = IVAL(req->in.body, 0x18);
  68         io->out.lease.lease_duration    = IVAL(req->in.body, 0x1C);
  69
  70         return smb2_request_destroy(req);
  71 }
  72
  73 /*
  74   sync flush request
  75 */
  76 NTSTATUS smb2_lease_break_ack(struct smb2_tree *tree,
  77                               struct smb2_lease_break_ack *io)
  78 {
  79         struct smb2_request *req = smb2_lease_break_ack_send(tree, io);
  80         return smb2_lease_break_ack_recv(req, io);
  81 }