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/raw/raw_proto.h"
  26 #include "libcli/smb_composite/smb_composite.h"
  27 #include "param/param.h"
  28
  29 #define SETUP_REQUEST_TREE(cmd, wct, buflen) do { \
  30         req = smbcli_request_setup(tree, cmd, wct, buflen); \
  31         if (!req) return NULL; \
  32 } while (0)
  33
  34 /****************************************************************************
  35  Initialize the tree context
  36 ****************************************************************************/
  37 _PUBLIC_ struct smbcli_tree *smbcli_tree_init(struct smbcli_session *session,
  38                                      TALLOC_CTX *parent_ctx, bool primary)
  39 {
  40         struct smbcli_tree *tree;
  41
  42         tree = talloc_zero(parent_ctx, struct smbcli_tree);
  43         if (!tree) {
  44                 return NULL;
  45         }
  46
  47         if (primary) {
  48                 tree->session = talloc_steal(tree, session);
  49         } else {
  50                 tree->session = talloc_reference(tree, session);
  51         }
  52
  53
  54         return tree;
  55 }
  56
  57 /****************************************************************************
  58  Send a tconX (async send)
  59 ****************************************************************************/
  60 struct smbcli_request *smb_raw_tcon_send(struct smbcli_tree *tree,
  61                                          union smb_tcon *parms)
  62 {
  63         struct smbcli_request *req = NULL;
  64
  65         switch (parms->tcon.level) {
  66         case RAW_TCON_TCON:
  67                 SETUP_REQUEST_TREE(SMBtcon, 0, 0);
  68                 smbcli_req_append_ascii4(req, parms->tcon.in.service, STR_ASCII);
  69                 smbcli_req_append_ascii4(req, parms->tcon.in.password,STR_ASCII);
  70                 smbcli_req_append_ascii4(req, parms->tcon.in.dev,     STR_ASCII);
  71                 break;
  72
  73         case RAW_TCON_TCONX:
  74                 SETUP_REQUEST_TREE(SMBtconX, 4, 0);
  75                 SSVAL(req->out.vwv, VWV(0), 0xFF);
  76                 SSVAL(req->out.vwv, VWV(1), 0);
  77                 SSVAL(req->out.vwv, VWV(2), parms->tconx.in.flags);
  78                 SSVAL(req->out.vwv, VWV(3), parms->tconx.in.password.length);
  79                 smbcli_req_append_blob(req, &parms->tconx.in.password);
  80                 smbcli_req_append_string(req, parms->tconx.in.path,   STR_TERMINATE | STR_UPPER);
  81                 smbcli_req_append_string(req, parms->tconx.in.device, STR_TERMINATE | STR_ASCII);
  82                 break;
  83
  84         case RAW_TCON_SMB2:
  85                 return NULL;
  86         }
  87
  88         if (!smbcli_request_send(req)) {
  89                 smbcli_request_destroy(req);
  90                 return NULL;
  91         }
  92
  93         return req;
  94 }
  95
  96 /****************************************************************************
  97  Send a tconX (async recv)
  98 ****************************************************************************/
  99 NTSTATUS smb_raw_tcon_recv(struct smbcli_request *req, TALLOC_CTX *mem_ctx,
 100                            union smb_tcon *parms)
 101 {
 102         uint8_t *p;
 103
 104         if (!smbcli_request_receive(req) ||
 105             smbcli_request_is_error(req)) {
 106                 goto failed;
 107         }
 108
 109         switch (parms->tcon.level) {
 110         case RAW_TCON_TCON:
 111                 SMBCLI_CHECK_WCT(req, 2);
 112                 parms->tcon.out.max_xmit = SVAL(req->in.vwv, VWV(0));
 113                 parms->tcon.out.tid = SVAL(req->in.vwv, VWV(1));
 114                 break;
 115
 116         case RAW_TCON_TCONX:
 117                 ZERO_STRUCT(parms->tconx.out);
 118                 parms->tconx.out.tid = SVAL(req->in.hdr, HDR_TID);
 119                 if (req->in.wct >= 4) {
 120                         parms->tconx.out.options = SVAL(req->in.vwv, VWV(3));
 121                 }
 122
 123                 /* output is actual service name */
 124                 p = req->in.data;
 125                 if (!p) break;
 126
 127                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->tconx.out.dev_type,
 128                                             p, -1, STR_ASCII | STR_TERMINATE);
 129                 p += smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->tconx.out.fs_type,
 130                                          p, -1, STR_TERMINATE);
 131                 break;
 132
 133         case RAW_TCON_SMB2:
 134                 req->status = NT_STATUS_INTERNAL_ERROR;
 135                 break;
 136         }
 137
 138 failed:
 139         return smbcli_request_destroy(req);
 140 }
 141
 142 /****************************************************************************
 143  Send a tconX (sync interface)
 144 ****************************************************************************/
 145 _PUBLIC_ NTSTATUS smb_raw_tcon(struct smbcli_tree *tree, TALLOC_CTX *mem_ctx,
 146                       union smb_tcon *parms)
 147 {
 148         struct smbcli_request *req = smb_raw_tcon_send(tree, parms);
 149         return smb_raw_tcon_recv(req, mem_ctx, parms);
 150 }
 151
 152
 153 /****************************************************************************
 154  Send a tree disconnect.
 155 ****************************************************************************/
 156 _PUBLIC_ NTSTATUS smb_tree_disconnect(struct smbcli_tree *tree)
 157 {
 158         struct smbcli_request *req;
 159
 160         if (!tree) return NT_STATUS_OK;
 161         req = smbcli_request_setup(tree, SMBtdis, 0, 0);
 162
 163         if (smbcli_request_send(req)) {
 164                 (void) smbcli_request_receive(req);
 165         }
 166         return smbcli_request_destroy(req);
 167 }
 168
 169
 170 /*
 171   a convenient function to establish a smbcli_tree from scratch
 172 */
 173 NTSTATUS smbcli_tree_full_connection(TALLOC_CTX *parent_ctx,
 174                                      struct smbcli_tree **ret_tree,
 175                                      const char *dest_host, const char **dest_ports,
 176                                      const char *service, const char *service_type,
 177                                      struct cli_credentials *credentials,
 178                                      struct resolve_context *resolve_ctx,
 179                                      struct event_context *ev,
 180                                      struct smbcli_options *options,
 181                                      struct smbcli_session_options *session_options)
 182 {
 183         struct smb_composite_connect io;
 184         NTSTATUS status;
 185         TALLOC_CTX *tmp_ctx = talloc_new(parent_ctx);
 186         if (!tmp_ctx) {
 187                 return NT_STATUS_NO_MEMORY;
 188         }
 189
 190         io.in.dest_host = dest_host;
 191         io.in.dest_ports = dest_ports;
 192         io.in.called_name = strupper_talloc(tmp_ctx, dest_host);
 193         io.in.service = service;
 194         io.in.service_type = service_type;
 195         io.in.credentials = credentials;
 196         io.in.fallback_to_anonymous = false;
 197
 198         /* This workgroup gets sent out by the SPNEGO session setup.
 199          * I don't know of any servers that look at it, so we might
 200          * hardcode it to "" some day, when the war on global_loadparm
 201          * is complete -- abartlet 2008-04-28 */
 202         io.in.workgroup = lp_workgroup(global_loadparm);
 203         io.in.options = *options;
 204         io.in.session_options = *session_options;
 205
 206         status = smb_composite_connect(&io, parent_ctx, resolve_ctx, ev);
 207         if (NT_STATUS_IS_OK(status)) {
 208                 *ret_tree = io.out.tree;
 209         }
 210         talloc_free(tmp_ctx);
 211         return status;
 212 }