source4/libcli/smb2/tcon.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    SMB2 client tree 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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/raw/libcliraw.h"
  25 #include "libcli/smb2/smb2.h"
  26 #include "libcli/smb2/smb2_calls.h"
  27
  28 /*
  29   initialise a smb2_session structure
  30  */
  31 struct smb2_tree *smb2_tree_init(struct smb2_session *session,
  32                                  TALLOC_CTX *parent_ctx, BOOL primary)
  33 {
  34         struct smb2_tree *tree;
  35
  36         tree = talloc_zero(parent_ctx, struct smb2_tree);
  37         if (!session) {
  38                 return NULL;
  39         }
  40         if (primary) {
  41                 tree->session = talloc_steal(tree, session);
  42         } else {
  43                 tree->session = talloc_reference(tree, session);
  44         }
  45         return tree;
  46 }
  47
  48 /*
  49   send a tree connect
  50 */
  51 struct smb2_request *smb2_tree_connect_send(struct smb2_tree *tree,
  52                                             struct smb2_tree_connect *io)
  53 {
  54         struct smb2_request *req;
  55         NTSTATUS status;
  56
  57         req = smb2_request_init(tree->session->transport, SMB2_OP_TCON,
  58                                 0x08, 1);
  59         if (req == NULL) return NULL;
  60
  61         SBVAL(req->out.hdr,  SMB2_HDR_UID, tree->session->uid);
  62
  63         SSVAL(req->out.body, 0x02, io->in.unknown1);
  64         status = smb2_push_o16s16_string(&req->out, 0x04, io->in.path);
  65         if (!NT_STATUS_IS_OK(status)) {
  66                 talloc_free(req);
  67                 return NULL;
  68         }
  69
  70         smb2_transport_send(req);
  71
  72         return req;
  73 }
  74
  75
  76 /*
  77   recv a tree connect reply
  78 */
  79 NTSTATUS smb2_tree_connect_recv(struct smb2_request *req, struct smb2_tree_connect *io)
  80 {
  81         if (!smb2_request_receive(req) ||
  82             smb2_request_is_error(req)) {
  83                 return smb2_request_destroy(req);
  84         }
  85
  86         SMB2_CHECK_PACKET_RECV(req, 0x10, False);
  87
  88         io->out.tid      = IVAL(req->in.hdr,  SMB2_HDR_TID);
  89
  90         io->out.unknown1    = SVAL(req->in.body, 0x02);
  91         io->out.unknown2    = IVAL(req->in.body, 0x04);
  92         io->out.unknown3    = IVAL(req->in.body, 0x08);
  93         io->out.access_mask = IVAL(req->in.body, 0x0C);
  94
  95         return smb2_request_destroy(req);
  96 }
  97
  98 /*
  99   sync tree connect request
 100 */
 101 NTSTATUS smb2_tree_connect(struct smb2_tree *tree, struct smb2_tree_connect *io)
 102 {
 103         struct smb2_request *req = smb2_tree_connect_send(tree, io);
 104         return smb2_tree_connect_recv(req, io);
 105 }