Line data    Source code

       1             : /* 
       2             :    Unix SMB/CIFS implementation.
       3             : 
       4             :    SMB2 client write call
       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 write request
      28             : */
      29         237 : struct smb2_request *smb2_write_send(struct smb2_tree *tree, struct smb2_write *io)
      30             : {
      31             :         NTSTATUS status;
      32             :         struct smb2_request *req;
      33             : 
      34         237 :         req = smb2_request_init_tree(tree, SMB2_OP_WRITE, 0x30, true, io->in.data.length);
      35         237 :         if (req == NULL) return NULL;
      36             : 
      37         237 :         status = smb2_push_o16s32_blob(&req->out, 0x02, io->in.data);
      38         237 :         if (!NT_STATUS_IS_OK(status)) {
      39           0 :                 talloc_free(req);
      40           0 :                 return NULL;
      41             :         }
      42             : 
      43         237 :         SBVAL(req->out.body, 0x08, io->in.offset);
      44         237 :         smb2_push_handle(req->out.body+0x10, &io->in.file.handle);
      45             : 
      46         237 :         SBVAL(req->out.body, 0x20, io->in.unknown1);
      47         237 :         SBVAL(req->out.body, 0x28, io->in.unknown2);
      48             : 
      49         237 :         smb2_transport_send(req);
      50             : 
      51         237 :         return req;
      52             : }
      53             : 
      54             : 
      55             : /*
      56             :   recv a write reply
      57             : */
      58         237 : NTSTATUS smb2_write_recv(struct smb2_request *req, struct smb2_write *io)
      59             : {
      60         472 :         if (!smb2_request_receive(req) || 
      61         237 :             !smb2_request_is_ok(req)) {
      62          48 :                 return smb2_request_destroy(req);
      63             :         }
      64             : 
      65         189 :         SMB2_CHECK_PACKET_RECV(req, 0x10, true);
      66             : 
      67         189 :         io->out._pad     = SVAL(req->in.body, 0x02);
      68         189 :         io->out.nwritten = IVAL(req->in.body, 0x04);
      69         189 :         io->out.unknown1 = BVAL(req->in.body, 0x08);
      70             : 
      71         189 :         return smb2_request_destroy(req);
      72             : }
      73             : 
      74             : /*
      75             :   sync write request
      76             : */
      77         237 : NTSTATUS smb2_write(struct smb2_tree *tree, struct smb2_write *io)
      78             : {
      79         237 :         struct smb2_request *req = smb2_write_send(tree, io);
      80         237 :         return smb2_write_recv(req, io);
      81             : }