source4/libcli/raw/clitree.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    SMB client tree context management functions
   5
   6    Copyright (C) Andrew Tridgell 1994-2005
   7    Copyright (C) James Myers 2003 <myersjj@samba.org>
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/raw/libcliraw.h"
  25 #include "libcli/smb_composite/smb_composite.h"
  26
  27 #define SETUP_REQUEST_TREE(cmd, wct, buflen) do { \
  28         req = smbcli_request_setup(tree, cmd, wct, buflen); \
  29         if (!req) return NULL; \
  30 } while (0)
  31
  32 /****************************************************************************
  33  Initialize the tree context
  34 ****************************************************************************/
  35 struct smbcli_tree *smbcli_tree_init(struct smbcli_session *session,
  36                                      TALLOC_CTX *parent_ctx, BOOL primary)
  37 {
  38         struct smbcli_tree *tree;
  39
  40         tree = talloc_zero(parent_ctx, struct smbcli_tree);
  41         if (!tree) {
  42                 return NULL;
  43         }
  44
  45         if (primary) {
  46                 tree->session = talloc_steal(tree, session);
  47         } else {
  48                 tree->session = talloc_reference(tree, session);
  49         }
  50
  51
  52         return tree;
  53 }
  54
  55 /****************************************************************************
  56  Send a tconX (async send)
  57 ****************************************************************************/
  58 struct smbcli_request *smb_raw_tcon_send(struct smbcli_tree *tree,
  59                                          union smb_tcon *parms)
  60 {
  61         struct smbcli_request *req = NULL;
  62
  63         switch (parms->tcon.level) {
  64         case RAW_TCON_TCON:
  65                 SETUP_REQUEST_TREE(SMBtcon, 0, 0);
  66                 smbcli_req_append_ascii4(req, parms->tcon.in.service, STR_ASCII);
  67                 smbcli_req_append_ascii4(req, parms->tcon.in.password,STR_ASCII);
  68                 smbcli_req_append_ascii4(req, parms->tcon.in.dev,     STR_ASCII);
  69                 break;
  70
  71         case RAW_TCON_TCONX:
  72                 SETUP_REQUEST_TREE(SMBtconX, 4, 0);
  73                 SSVAL(req->out.vwv, VWV(0), 0xFF);
  74                 SSVAL(req->out.vwv, VWV(1), 0);
  75                 SSVAL(req->out.vwv, VWV(2), parms->tconx.in.flags);
  76                 SSVAL(req->out.vwv, VWV(3), parms->tconx.in.password.length);
  77                 smbcli_req_append_blob(req, &parms->tconx.in.password);
  78                 smbcli_req_append_string(req, parms->tconx.in.path,   STR_TERMINATE | STR_UPPER);
  79                 smbcli_req_append_string(req, parms->tconx.in.device, STR_TERMINATE | STR_ASCII);
  80                 break;
  81
  82         case RAW_TCON_SMB2:
  83                 return NULL;
  84         }
  85
  86         if (!smbcli_request_send(req)) {
  87                 smbcli_request_destroy(req);
  88                 return NULL;
  89         }
  90
  91         return req;
  92 }
  93
  94 /****************************************************************************
  95  Send a tconX (async recv)
  96 ****************************************************************************/
  97 NTSTATUS smb_raw_tcon_recv(struct smbcli_request *req, TALLOC_CTX *mem_ctx,
  98                            union smb_tcon *parms)
  99 {
 100         uint8_t *p;
 101
 102         if (!smbcli_request_receive(req) ||
 103             smbcli_request_is_error(req)) {
 104                 goto failed;
 105         }
 106
 107         switch (parms->tcon.level) {
 108         case RAW_TCON_TCON:
 109                 SMBCLI_CHECK_WCT(req, 2);
 110                 parms->tcon.out.max_xmit = SVAL(req->in.vwv, VWV(0));
 111                 parms->tcon.out.tid = SVAL(req->in.vwv, VWV(1));
 112                 break;
 113
 114         case RAW_TCON_TCONX:
 115                 ZERO_STRUCT(parms->tconx.out);
 116                 parms->tconx.out.tid = SVAL(req->in.hdr, HDR_TID);
 117                 if (req->in.wct >= 4) {
 118                         parms->tconx.out.options = SVAL(req->in.vwv, VWV(3));
 119                 }
 120
 121                 /* output is actual service name */
 122                 p = req->in.data;
 123                 if (!p) break;
 124
 125                 p += smbcli_req_pull_string(req, mem_ctx, &parms->tconx.out.dev_type,
 126                                          p, -1, STR_ASCII | STR_TERMINATE);
 127                 p += smbcli_req_pull_string(req, mem_ctx, &parms->tconx.out.fs_type,
 128                                          p, -1, STR_TERMINATE);
 129                 break;
 130
 131         case RAW_TCON_SMB2:
 132                 req->status = NT_STATUS_INTERNAL_ERROR;
 133                 break;
 134         }
 135
 136 failed:
 137         return smbcli_request_destroy(req);
 138 }
 139
 140 /****************************************************************************
 141  Send a tconX (sync interface)
 142 ****************************************************************************/
 143 NTSTATUS smb_raw_tcon(struct smbcli_tree *tree, TALLOC_CTX *mem_ctx,
 144                       union smb_tcon *parms)
 145 {
 146         struct smbcli_request *req = smb_raw_tcon_send(tree, parms);
 147         return smb_raw_tcon_recv(req, mem_ctx, parms);
 148 }
 149
 150
 151 /****************************************************************************
 152  Send a tree disconnect.
 153 ****************************************************************************/
 154 NTSTATUS smb_tree_disconnect(struct smbcli_tree *tree)
 155 {
 156         struct smbcli_request *req;
 157
 158         if (!tree) return NT_STATUS_OK;
 159         req = smbcli_request_setup(tree, SMBtdis, 0, 0);
 160
 161         if (smbcli_request_send(req)) {
 162                 (void) smbcli_request_receive(req);
 163         }
 164         return smbcli_request_destroy(req);
 165 }
 166
 167
 168 /*
 169   a convenient function to establish a smbcli_tree from scratch
 170 */
 171 NTSTATUS smbcli_tree_full_connection(TALLOC_CTX *parent_ctx,
 172                                      struct smbcli_tree **ret_tree,
 173                                      const char *dest_host, int port,
 174                                      const char *service, const char *service_type,
 175                                      struct cli_credentials *credentials,
 176                                      struct event_context *ev)
 177 {
 178         struct smb_composite_connect io;
 179         NTSTATUS status;
 180         TALLOC_CTX *tmp_ctx = talloc_new(parent_ctx);
 181         if (!tmp_ctx) {
 182                 return NT_STATUS_NO_MEMORY;
 183         }
 184
 185         io.in.dest_host = dest_host;
 186         io.in.port = port;
 187         io.in.called_name = strupper_talloc(tmp_ctx, dest_host);
 188         io.in.service = service;
 189         io.in.service_type = service_type;
 190         io.in.credentials = credentials;
 191         io.in.fallback_to_anonymous = False;
 192         io.in.workgroup = lp_workgroup();
 193
 194         status = smb_composite_connect(&io, parent_ctx, ev);
 195         if (NT_STATUS_IS_OK(status)) {
 196                 *ret_tree = io.out.tree;
 197         }
 198         talloc_free(tmp_ctx);
 199         return status;
 200 }