source3/smbd/smb2_tcon.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Core SMB2 server
   4
   5    Copyright (C) Stefan Metzmacher 2009
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "smbd/smbd.h"
  23 #include "smbd/globals.h"
  24 #include "../libcli/smb/smb_common.h"
  25 #include "../libcli/security/security.h"
  26 #include "auth.h"
  27 #include "lib/param/loadparm.h"
  28 #include "../lib/util/tevent_ntstatus.h"
  29
  30 static struct tevent_req *smbd_smb2_tree_connect_send(TALLOC_CTX *mem_ctx,
  31                                         struct tevent_context *ev,
  32                                         struct smbd_smb2_request *smb2req,
  33                                         const char *in_path);
  34 static NTSTATUS smbd_smb2_tree_connect_recv(struct tevent_req *req,
  35                                             uint8_t *out_share_type,
  36                                             uint32_t *out_share_flags,
  37                                             uint32_t *out_capabilities,
  38                                             uint32_t *out_maximal_access,
  39                                             uint32_t *out_tree_id,
  40                                             bool *disconnect);
  41
  42 static void smbd_smb2_request_tcon_done(struct tevent_req *subreq);
  43
  44 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req)
  45 {
  46         const uint8_t *inbody;
  47         uint16_t in_path_offset;
  48         uint16_t in_path_length;
  49         DATA_BLOB in_path_buffer;
  50         char *in_path_string;
  51         size_t in_path_string_size;
  52         NTSTATUS status;
  53         bool ok;
  54         struct tevent_req *subreq;
  55
  56         status = smbd_smb2_request_verify_sizes(req, 0x09);
  57         if (!NT_STATUS_IS_OK(status)) {
  58                 return smbd_smb2_request_error(req, status);
  59         }
  60         inbody = SMBD_SMB2_IN_BODY_PTR(req);
  61
  62         in_path_offset = SVAL(inbody, 0x04);
  63         in_path_length = SVAL(inbody, 0x06);
  64
  65         if (in_path_offset != (SMB2_HDR_BODY + SMBD_SMB2_IN_BODY_LEN(req))) {
  66                 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
  67         }
  68
  69         if (in_path_length > SMBD_SMB2_IN_DYN_LEN(req)) {
  70                 return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
  71         }
  72
  73         in_path_buffer.data = SMBD_SMB2_IN_DYN_PTR(req);
  74         in_path_buffer.length = in_path_length;
  75
  76         ok = convert_string_talloc(req, CH_UTF16, CH_UNIX,
  77                                    in_path_buffer.data,
  78                                    in_path_buffer.length,
  79                                    &in_path_string,
  80                                    &in_path_string_size);
  81         if (!ok) {
  82                 return smbd_smb2_request_error(req, NT_STATUS_ILLEGAL_CHARACTER);
  83         }
  84
  85         if (in_path_buffer.length == 0) {
  86                 in_path_string_size = 0;
  87         }
  88
  89         if (strlen(in_path_string) != in_path_string_size) {
  90                 return smbd_smb2_request_error(req, NT_STATUS_BAD_NETWORK_NAME);
  91         }
  92
  93         subreq = smbd_smb2_tree_connect_send(req,
  94                                              req->sconn->ev_ctx,
  95                                              req,
  96                                              in_path_string);
  97         if (subreq == NULL) {
  98                 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
  99         }
 100         tevent_req_set_callback(subreq, smbd_smb2_request_tcon_done, req);
 101
 102         return smbd_smb2_request_pending_queue(req, subreq, 500);
 103 }
 104
 105 static void smbd_smb2_request_tcon_done(struct tevent_req *subreq)
 106 {
 107         struct smbd_smb2_request *req =
 108                 tevent_req_callback_data(subreq,
 109                 struct smbd_smb2_request);
 110         uint8_t *outhdr;
 111         DATA_BLOB outbody;
 112         uint8_t out_share_type = 0;
 113         uint32_t out_share_flags = 0;
 114         uint32_t out_capabilities = 0;
 115         uint32_t out_maximal_access = 0;
 116         uint32_t out_tree_id = 0;
 117         bool disconnect = false;
 118         NTSTATUS status;
 119         NTSTATUS error;
 120
 121         status = smbd_smb2_tree_connect_recv(subreq,
 122                                              &out_share_type,
 123                                              &out_share_flags,
 124                                              &out_capabilities,
 125                                              &out_maximal_access,
 126                                              &out_tree_id,
 127                                              &disconnect);
 128         TALLOC_FREE(subreq);
 129         if (!NT_STATUS_IS_OK(status)) {
 130                 if (disconnect) {
 131                         smbd_server_connection_terminate(req->xconn,
 132                                                          nt_errstr(status));
 133                         return;
 134                 }
 135                 error = smbd_smb2_request_error(req, status);
 136                 if (!NT_STATUS_IS_OK(error)) {
 137                         smbd_server_connection_terminate(req->xconn,
 138                                                          nt_errstr(error));
 139                         return;
 140                 }
 141                 return;
 142         }
 143
 144         outhdr = SMBD_SMB2_OUT_HDR_PTR(req);
 145
 146         outbody = smbd_smb2_generate_outbody(req, 0x10);
 147         if (outbody.data == NULL) {
 148                 error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
 149                 if (!NT_STATUS_IS_OK(error)) {
 150                         smbd_server_connection_terminate(req->xconn,
 151                                                          nt_errstr(error));
 152                         return;
 153                 }
 154                 return;
 155         }
 156
 157         SIVAL(outhdr, SMB2_HDR_TID, out_tree_id);
 158
 159         SSVAL(outbody.data, 0x00, 0x10);        /* struct size */
 160         SCVAL(outbody.data, 0x02,
 161               out_share_type);                  /* share type */
 162         SCVAL(outbody.data, 0x03, 0);           /* reserved */
 163         SIVAL(outbody.data, 0x04,
 164               out_share_flags);                 /* share flags */
 165         SIVAL(outbody.data, 0x08,
 166               out_capabilities);                /* capabilities */
 167         SIVAL(outbody.data, 0x0C,
 168               out_maximal_access);              /* maximal access */
 169
 170         error = smbd_smb2_request_done(req, outbody, NULL);
 171         if (!NT_STATUS_IS_OK(error)) {
 172                 smbd_server_connection_terminate(req->xconn,
 173                                                  nt_errstr(error));
 174                 return;
 175         }
 176 }
 177
 178 static NTSTATUS smbd_smb2_tree_connect(struct smbd_smb2_request *req,
 179                                        const char *in_path,
 180                                        uint8_t *out_share_type,
 181                                        uint32_t *out_share_flags,
 182                                        uint32_t *out_capabilities,
 183                                        uint32_t *out_maximal_access,
 184                                        uint32_t *out_tree_id,
 185                                        bool *disconnect)
 186 {
 187         struct smbXsrv_connection *conn = req->xconn;
 188         const char *share = in_path;
 189         char *service = NULL;
 190         int snum = -1;
 191         struct smbXsrv_tcon *tcon;
 192         NTTIME now = timeval_to_nttime(&req->request_time);
 193         connection_struct *compat_conn = NULL;
 194         struct user_struct *compat_vuser = req->session->compat;
 195         NTSTATUS status;
 196         bool encryption_required = req->session->global->encryption_required;
 197         bool guest_session = false;
 198         bool require_signed_tcon = false;
 199
 200         *disconnect = false;
 201
 202         if (strncmp(share, "\\\\", 2) == 0) {
 203                 const char *p = strchr(share+2, '\\');
 204                 if (p) {
 205                         share = p + 1;
 206                 }
 207         }
 208
 209         DEBUG(10,("smbd_smb2_tree_connect: path[%s] share[%s]\n",
 210                   in_path, share));
 211
 212         if (security_session_user_level(compat_vuser->session_info, NULL) < SECURITY_USER) {
 213                 guest_session = true;
 214         }
 215
 216         if (conn->protocol >= PROTOCOL_SMB3_11 && !guest_session) {
 217                 require_signed_tcon = true;
 218         }
 219
 220         if (require_signed_tcon && !req->do_encryption && !req->do_signing) {
 221                 DEBUG(1, ("smbd_smb2_tree_connect: reject request to share "
 222                           "[%s] as '%s\\%s' without encryption or signing. "
 223                           "Disconnecting.\n",
 224                           share,
 225                           req->session->global->auth_session_info->info->domain_name,
 226                           req->session->global->auth_session_info->info->account_name));
 227                 *disconnect = true;
 228                 return NT_STATUS_ACCESS_DENIED;
 229         }
 230
 231         service = talloc_strdup(talloc_tos(), share);
 232         if(!service) {
 233                 return NT_STATUS_NO_MEMORY;
 234         }
 235
 236         if (!strlower_m(service)) {
 237                 DEBUG(2, ("strlower_m %s failed\n", service));
 238                 return NT_STATUS_INVALID_PARAMETER;
 239         }
 240
 241         /* TODO: do more things... */
 242         if (strequal(service,HOMES_NAME)) {
 243                 if (compat_vuser->homes_snum == -1) {
 244                         DEBUG(2, ("[homes] share not available for "
 245                                 "user %s because it was not found "
 246                                 "or created at session setup "
 247                                 "time\n",
 248                                 compat_vuser->session_info->unix_info->unix_name));
 249                         return NT_STATUS_BAD_NETWORK_NAME;
 250                 }
 251                 snum = compat_vuser->homes_snum;
 252         } else if ((compat_vuser->homes_snum != -1)
 253                    && strequal(service,
 254                         lp_servicename(talloc_tos(), compat_vuser->homes_snum))) {
 255                 snum = compat_vuser->homes_snum;
 256         } else {
 257                 snum = find_service(talloc_tos(), service, &service);
 258                 if (!service) {
 259                         return NT_STATUS_NO_MEMORY;
 260                 }
 261         }
 262
 263         if (snum < 0) {
 264                 DEBUG(3,("smbd_smb2_tree_connect: couldn't find service %s\n",
 265                          service));
 266                 return NT_STATUS_BAD_NETWORK_NAME;
 267         }
 268
 269         if ((lp_smb_encrypt(snum) > SMB_SIGNING_OFF) &&
 270             (conn->smb2.client.capabilities & SMB2_CAP_ENCRYPTION)) {
 271                 encryption_required = true;
 272         }
 273
 274         if (lp_smb_encrypt(snum) == SMB_SIGNING_REQUIRED) {
 275                 encryption_required = true;
 276         }
 277
 278         if (guest_session && encryption_required) {
 279                 DEBUG(1,("reject guest as encryption is required for service %s\n",
 280                          service));
 281                 return NT_STATUS_ACCESS_DENIED;
 282         }
 283
 284         if (conn->smb2.server.cipher == 0) {
 285                 if (encryption_required) {
 286                         DEBUG(1,("reject tcon with dialect[0x%04X] "
 287                                  "as encryption is required for service %s\n",
 288                                  conn->smb2.server.dialect, service));
 289                         return NT_STATUS_ACCESS_DENIED;
 290                 }
 291         }
 292
 293         /* create a new tcon as child of the session */
 294         status = smb2srv_tcon_create(req->session, now, &tcon);
 295         if (!NT_STATUS_IS_OK(status)) {
 296                 return status;
 297         }
 298
 299         tcon->global->encryption_required = encryption_required;
 300
 301         compat_conn = make_connection_smb2(req,
 302                                         tcon, snum,
 303                                         req->session->compat,
 304                                         "???",
 305                                         &status);
 306         if (compat_conn == NULL) {
 307                 TALLOC_FREE(tcon);
 308                 return status;
 309         }
 310
 311         tcon->global->share_name = lp_servicename(tcon->global,
 312                                                   SNUM(compat_conn));
 313         if (tcon->global->share_name == NULL) {
 314                 conn_free(compat_conn);
 315                 TALLOC_FREE(tcon);
 316                 return NT_STATUS_NO_MEMORY;
 317         }
 318         tcon->global->session_global_id =
 319                 req->session->global->session_global_id;
 320
 321         tcon->compat = talloc_move(tcon, &compat_conn);
 322
 323         tcon->status = NT_STATUS_OK;
 324
 325         status = smbXsrv_tcon_update(tcon);
 326         if (!NT_STATUS_IS_OK(status)) {
 327                 TALLOC_FREE(tcon);
 328                 return status;
 329         }
 330
 331         if (IS_PRINT(tcon->compat)) {
 332                 *out_share_type = SMB2_SHARE_TYPE_PRINT;
 333         } else if (IS_IPC(tcon->compat)) {
 334                 *out_share_type = SMB2_SHARE_TYPE_PIPE;
 335         } else {
 336                 *out_share_type = SMB2_SHARE_TYPE_DISK;
 337         }
 338
 339         *out_share_flags = 0;
 340
 341         if (lp_msdfs_root(SNUM(tcon->compat)) && lp_host_msdfs()) {
 342                 *out_share_flags |= (SMB2_SHAREFLAG_DFS|SMB2_SHAREFLAG_DFS_ROOT);
 343                 *out_capabilities = SMB2_SHARE_CAP_DFS;
 344         } else {
 345                 *out_capabilities = 0;
 346         }
 347
 348         switch(lp_csc_policy(SNUM(tcon->compat))) {
 349         case CSC_POLICY_MANUAL:
 350                 break;
 351         case CSC_POLICY_DOCUMENTS:
 352                 *out_share_flags |= SMB2_SHAREFLAG_AUTO_CACHING;
 353                 break;
 354         case CSC_POLICY_PROGRAMS:
 355                 *out_share_flags |= SMB2_SHAREFLAG_VDO_CACHING;
 356                 break;
 357         case CSC_POLICY_DISABLE:
 358                 *out_share_flags |= SMB2_SHAREFLAG_NO_CACHING;
 359                 break;
 360         default:
 361                 break;
 362         }
 363
 364         if (lp_hide_unreadable(SNUM(tcon->compat)) ||
 365             lp_hide_unwriteable_files(SNUM(tcon->compat))) {
 366                 *out_share_flags |= SMB2_SHAREFLAG_ACCESS_BASED_DIRECTORY_ENUM;
 367         }
 368
 369         if (encryption_required) {
 370                 *out_share_flags |= SMB2_SHAREFLAG_ENCRYPT_DATA;
 371         }
 372
 373         *out_maximal_access = tcon->compat->share_access;
 374
 375         *out_tree_id = tcon->global->tcon_wire_id;
 376         return NT_STATUS_OK;
 377 }
 378
 379 struct smbd_smb2_tree_connect_state {
 380         const char *in_path;
 381         uint8_t out_share_type;
 382         uint32_t out_share_flags;
 383         uint32_t out_capabilities;
 384         uint32_t out_maximal_access;
 385         uint32_t out_tree_id;
 386         bool disconnect;
 387 };
 388
 389 static struct tevent_req *smbd_smb2_tree_connect_send(TALLOC_CTX *mem_ctx,
 390                                         struct tevent_context *ev,
 391                                         struct smbd_smb2_request *smb2req,
 392                                         const char *in_path)
 393 {
 394         struct tevent_req *req;
 395         struct smbd_smb2_tree_connect_state *state;
 396         NTSTATUS status;
 397
 398         req = tevent_req_create(mem_ctx, &state,
 399                                 struct smbd_smb2_tree_connect_state);
 400         if (req == NULL) {
 401                 return NULL;
 402         }
 403         state->in_path = in_path;
 404
 405         status = smbd_smb2_tree_connect(smb2req,
 406                                         state->in_path,
 407                                         &state->out_share_type,
 408                                         &state->out_share_flags,
 409                                         &state->out_capabilities,
 410                                         &state->out_maximal_access,
 411                                         &state->out_tree_id,
 412                                         &state->disconnect);
 413         if (tevent_req_nterror(req, status)) {
 414                 return tevent_req_post(req, ev);
 415         }
 416
 417         tevent_req_done(req);
 418         return tevent_req_post(req, ev);
 419 }
 420
 421 static NTSTATUS smbd_smb2_tree_connect_recv(struct tevent_req *req,
 422                                             uint8_t *out_share_type,
 423                                             uint32_t *out_share_flags,
 424                                             uint32_t *out_capabilities,
 425                                             uint32_t *out_maximal_access,
 426                                             uint32_t *out_tree_id,
 427                                             bool *disconnect)
 428 {
 429         struct smbd_smb2_tree_connect_state *state =
 430                 tevent_req_data(req,
 431                 struct smbd_smb2_tree_connect_state);
 432         NTSTATUS status;
 433
 434         if (tevent_req_is_nterror(req, &status)) {
 435                 tevent_req_received(req);
 436                 return status;
 437         }
 438
 439         *out_share_type = state->out_share_type;
 440         *out_share_flags = state->out_share_flags;
 441         *out_capabilities = state->out_capabilities;
 442         *out_maximal_access = state->out_maximal_access;
 443         *out_tree_id = state->out_tree_id;
 444         *disconnect = state->disconnect;
 445
 446         tevent_req_received(req);
 447         return NT_STATUS_OK;
 448 }
 449
 450 static struct tevent_req *smbd_smb2_tdis_send(TALLOC_CTX *mem_ctx,
 451                                         struct tevent_context *ev,
 452                                         struct smbd_smb2_request *smb2req);
 453 static NTSTATUS smbd_smb2_tdis_recv(struct tevent_req *req);
 454 static void smbd_smb2_request_tdis_done(struct tevent_req *subreq);
 455
 456 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req)
 457 {
 458         NTSTATUS status;
 459         struct tevent_req *subreq = NULL;
 460
 461         status = smbd_smb2_request_verify_sizes(req, 0x04);
 462         if (!NT_STATUS_IS_OK(status)) {
 463                 return smbd_smb2_request_error(req, status);
 464         }
 465
 466         subreq = smbd_smb2_tdis_send(req, req->sconn->ev_ctx, req);
 467         if (subreq == NULL) {
 468                 return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
 469         }
 470         tevent_req_set_callback(subreq, smbd_smb2_request_tdis_done, req);
 471
 472         /*
 473          * Wait a long time before going async on this to allow
 474          * requests we're waiting on to finish. Set timeout to 10 secs.
 475          */
 476         return smbd_smb2_request_pending_queue(req, subreq, 10000000);
 477 }
 478
 479 static void smbd_smb2_request_tdis_done(struct tevent_req *subreq)
 480 {
 481         struct smbd_smb2_request *smb2req =
 482                 tevent_req_callback_data(subreq,
 483                 struct smbd_smb2_request);
 484         DATA_BLOB outbody;
 485         NTSTATUS status;
 486         NTSTATUS error;
 487
 488         status = smbd_smb2_tdis_recv(subreq);
 489         TALLOC_FREE(subreq);
 490         if (!NT_STATUS_IS_OK(status)) {
 491                 error = smbd_smb2_request_error(smb2req, status);
 492                 if (!NT_STATUS_IS_OK(error)) {
 493                         smbd_server_connection_terminate(smb2req->xconn,
 494                                                         nt_errstr(error));
 495                         return;
 496                 }
 497                 return;
 498         }
 499
 500         outbody = smbd_smb2_generate_outbody(smb2req, 0x04);
 501         if (outbody.data == NULL) {
 502                 error = smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
 503                 if (!NT_STATUS_IS_OK(error)) {
 504                         smbd_server_connection_terminate(smb2req->xconn,
 505                                                         nt_errstr(error));
 506                         return;
 507                 }
 508                 return;
 509         }
 510
 511         SSVAL(outbody.data, 0x00, 0x04);        /* struct size */
 512         SSVAL(outbody.data, 0x02, 0);           /* reserved */
 513
 514         error = smbd_smb2_request_done(smb2req, outbody, NULL);
 515         if (!NT_STATUS_IS_OK(error)) {
 516                 smbd_server_connection_terminate(smb2req->xconn,
 517                                                 nt_errstr(error));
 518                 return;
 519         }
 520 }
 521
 522 struct smbd_smb2_tdis_state {
 523         struct smbd_smb2_request *smb2req;
 524         struct tevent_queue *wait_queue;
 525 };
 526
 527 static void smbd_smb2_tdis_wait_done(struct tevent_req *subreq);
 528
 529 static struct tevent_req *smbd_smb2_tdis_send(TALLOC_CTX *mem_ctx,
 530                                         struct tevent_context *ev,
 531                                         struct smbd_smb2_request *smb2req)
 532 {
 533         struct tevent_req *req;
 534         struct smbd_smb2_tdis_state *state;
 535         struct tevent_req *subreq;
 536         struct smbXsrv_connection *xconn = NULL;
 537
 538         req = tevent_req_create(mem_ctx, &state,
 539                         struct smbd_smb2_tdis_state);
 540         if (req == NULL) {
 541                 return NULL;
 542         }
 543         state->smb2req = smb2req;
 544
 545         state->wait_queue = tevent_queue_create(state, "tdis_wait_queue");
 546         if (tevent_req_nomem(state->wait_queue, req)) {
 547                 return tevent_req_post(req, ev);
 548         }
 549
 550         /*
 551          * Make sure that no new request will be able to use this tcon.
 552          */
 553         smb2req->tcon->status = NT_STATUS_NETWORK_NAME_DELETED;
 554
 555         xconn = smb2req->xconn->client->connections;
 556         for (; xconn != NULL; xconn = xconn->next) {
 557                 struct smbd_smb2_request *preq;
 558
 559                 for (preq = xconn->smb2.requests; preq != NULL; preq = preq->next) {
 560                         if (preq == smb2req) {
 561                                 /* Can't cancel current request. */
 562                                 continue;
 563                         }
 564                         if (preq->tcon != smb2req->tcon) {
 565                                 /* Request on different tcon. */
 566                                 continue;
 567                         }
 568
 569                         /*
 570                          * Never cancel anything in a compound
 571                          * request. Way too hard to deal with
 572                          * the result.
 573                          */
 574                         if (!preq->compound_related && preq->subreq != NULL) {
 575                                 tevent_req_cancel(preq->subreq);
 576                         }
 577
 578                         /*
 579                          * Now wait until the request is finished.
 580                          *
 581                          * We don't set a callback, as we just want to block the
 582                          * wait queue and the talloc_free() of the request will
 583                          * remove the item from the wait queue.
 584                          */
 585                         subreq = tevent_queue_wait_send(preq, ev, state->wait_queue);
 586                         if (tevent_req_nomem(subreq, req)) {
 587                                 return tevent_req_post(req, ev);
 588                         }
 589                 }
 590         }
 591
 592         /*
 593          * Now we add our own waiter to the end of the queue,
 594          * this way we get notified when all pending requests are finished
 595          * and send to the socket.
 596          */
 597         subreq = tevent_queue_wait_send(state, ev, state->wait_queue);
 598         if (tevent_req_nomem(subreq, req)) {
 599                 return tevent_req_post(req, ev);
 600         }
 601         tevent_req_set_callback(subreq, smbd_smb2_tdis_wait_done, req);
 602
 603         return req;
 604 }
 605
 606 static void smbd_smb2_tdis_wait_done(struct tevent_req *subreq)
 607 {
 608         struct tevent_req *req = tevent_req_callback_data(
 609                 subreq, struct tevent_req);
 610         struct smbd_smb2_tdis_state *state = tevent_req_data(
 611                 req, struct smbd_smb2_tdis_state);
 612         NTSTATUS status;
 613
 614         tevent_queue_wait_recv(subreq);
 615         TALLOC_FREE(subreq);
 616
 617         /*
 618          * As we've been awoken, we may have changed
 619          * uid in the meantime. Ensure we're still
 620          * root (SMB2_OP_TDIS has .as_root = true).
 621          */
 622         change_to_root_user();
 623
 624         status = smbXsrv_tcon_disconnect(state->smb2req->tcon,
 625                                          state->smb2req->tcon->compat->vuid);
 626         if (tevent_req_nterror(req, status)) {
 627                 return;
 628         }
 629
 630         /* We did tear down the tcon. */
 631         TALLOC_FREE(state->smb2req->tcon);
 632         tevent_req_done(req);
 633 }
 634
 635 static NTSTATUS smbd_smb2_tdis_recv(struct tevent_req *req)
 636 {
 637         return tevent_req_simple_recv_ntstatus(req);
 638 }