source4/libcli/smb2/ioctl.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    SMB2 client ioctl 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 ioctl request
  28 */
  29 struct smb2_request *smb2_ioctl_send(struct smb2_tree *tree, struct smb2_ioctl *io)
  30 {
  31         NTSTATUS status;
  32         struct smb2_request *req;
  33
  34         req = smb2_request_init_tree(tree, SMB2_OP_IOCTL, 0x38, true,
  35                                      io->in.in.length+io->in.out.length);
  36         if (req == NULL) return NULL;
  37
  38         SSVAL(req->out.body, 0x02, 0); /* pad */
  39         SIVAL(req->out.body, 0x04, io->in.function);
  40         smb2_push_handle(req->out.body+0x08, &io->in.file.handle);
  41
  42         status = smb2_push_o32s32_blob(&req->out, 0x18, io->in.out);
  43         if (!NT_STATUS_IS_OK(status)) {
  44                 talloc_free(req);
  45                 return NULL;
  46         }
  47
  48         SIVAL(req->out.body, 0x20, io->in.unknown2);
  49
  50         status = smb2_push_o32s32_blob(&req->out, 0x24, io->in.in);
  51         if (!NT_STATUS_IS_OK(status)) {
  52                 talloc_free(req);
  53                 return NULL;
  54         }
  55
  56         SIVAL(req->out.body, 0x2C, io->in.max_response_size);
  57         SBVAL(req->out.body, 0x30, io->in.flags);
  58
  59         smb2_transport_send(req);
  60
  61         return req;
  62 }
  63
  64
  65 /*
  66   recv a ioctl reply
  67 */
  68 NTSTATUS smb2_ioctl_recv(struct smb2_request *req,
  69                          TALLOC_CTX *mem_ctx, struct smb2_ioctl *io)
  70 {
  71         NTSTATUS status;
  72
  73         if (!smb2_request_receive(req) ||
  74             smb2_request_is_error(req)) {
  75                 return smb2_request_destroy(req);
  76         }
  77
  78         SMB2_CHECK_PACKET_RECV(req, 0x30, true);
  79
  80         io->out._pad       = SVAL(req->in.body, 0x02);
  81         io->out.function   = IVAL(req->in.body, 0x04);
  82         smb2_pull_handle(req->in.body+0x08, &io->out.file.handle);
  83
  84         status = smb2_pull_o32s32_blob(&req->in, mem_ctx, req->in.body+0x18, &io->out.in);
  85         if (!NT_STATUS_IS_OK(status)) {
  86                 smb2_request_destroy(req);
  87                 return status;
  88         }
  89
  90         status = smb2_pull_o32s32_blob(&req->in, mem_ctx, req->in.body+0x20, &io->out.out);
  91         if (!NT_STATUS_IS_OK(status)) {
  92                 smb2_request_destroy(req);
  93                 return status;
  94         }
  95
  96         io->out.unknown2 = IVAL(req->in.body, 0x28);
  97         io->out.unknown3 = IVAL(req->in.body, 0x2C);
  98
  99         return smb2_request_destroy(req);
 100 }
 101
 102 /*
 103   sync ioctl request
 104 */
 105 NTSTATUS smb2_ioctl(struct smb2_tree *tree, TALLOC_CTX *mem_ctx, struct smb2_ioctl *io)
 106 {
 107         struct smb2_request *req = smb2_ioctl_send(tree, io);
 108         return smb2_ioctl_recv(req, mem_ctx, io);
 109 }