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 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 #include "../libcli/smb/smbXcli_base.h"
  26
  27 /*
  28   initialise a smb2_session structure
  29  */
  30 struct smb2_tree *smb2_tree_init(struct smb2_session *session,
  31                                  TALLOC_CTX *parent_ctx, bool primary)
  32 {
  33         struct smb2_tree *tree;
  34
  35         tree = talloc_zero(parent_ctx, struct smb2_tree);
  36         if (!session) {
  37                 return NULL;
  38         }
  39         if (primary) {
  40                 tree->session = talloc_steal(tree, session);
  41         } else {
  42                 tree->session = talloc_reference(tree, session);
  43         }
  44
  45         tree->smbXcli = smbXcli_tcon_create(tree);
  46         if (tree->smbXcli == NULL) {
  47                 talloc_free(tree);
  48                 return NULL;
  49         }
  50
  51         return tree;
  52 }
  53
  54 /*
  55   send a tree connect
  56 */
  57 struct smb2_request *smb2_tree_connect_send(struct smb2_session *session,
  58                                             struct smb2_tree_connect *io)
  59 {
  60         struct smb2_request *req;
  61         NTSTATUS status;
  62
  63         req = smb2_request_init(session->transport, SMB2_OP_TCON,
  64                                 0x08, true, 0);
  65         if (req == NULL) return NULL;
  66
  67         req->session = session;
  68
  69         SSVAL(req->out.body, 0x02, io->in.reserved);
  70         status = smb2_push_o16s16_string(&req->out, 0x04, io->in.path);
  71         if (!NT_STATUS_IS_OK(status)) {
  72                 talloc_free(req);
  73                 return NULL;
  74         }
  75
  76         smb2_transport_send(req);
  77
  78         return req;
  79 }
  80
  81
  82 /*
  83   recv a tree connect reply
  84 */
  85 NTSTATUS smb2_tree_connect_recv(struct smb2_request *req, struct smb2_tree_connect *io)
  86 {
  87         if (!smb2_request_receive(req) ||
  88             smb2_request_is_error(req)) {
  89                 return smb2_request_destroy(req);
  90         }
  91
  92         SMB2_CHECK_PACKET_RECV(req, 0x10, false);
  93
  94         io->out.tid      = IVAL(req->in.hdr,  SMB2_HDR_TID);
  95
  96         io->out.share_type  = CVAL(req->in.body, 0x02);
  97         io->out.reserved    = CVAL(req->in.body, 0x03);
  98         io->out.flags       = IVAL(req->in.body, 0x04);
  99         io->out.capabilities= IVAL(req->in.body, 0x08);
 100         io->out.access_mask = IVAL(req->in.body, 0x0C);
 101
 102         if (io->out.capabilities & ~SMB2_CAP_ALL) {
 103                 DEBUG(0,("Unknown capabilities mask 0x%x\n", io->out.capabilities));
 104         }
 105         if (io->out.flags & ~SMB2_SHAREFLAG_ALL) {
 106                 DEBUG(0,("Unknown tcon shareflag 0x%x\n", io->out.flags));
 107         }
 108
 109         return smb2_request_destroy(req);
 110 }
 111
 112 /*
 113   sync tree connect request
 114 */
 115 NTSTATUS smb2_tree_connect(struct smb2_session *session, struct smb2_tree_connect *io)
 116 {
 117         struct smb2_request *req = smb2_tree_connect_send(session, io);
 118         return smb2_tree_connect_recv(req, io);
 119 }