source4/libcli/smb_composite/sesssetup.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Andrew Tridgell 2005
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19 /*
  20   a composite API for making handling a generic async session setup
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/raw/libcliraw.h"
  25 #include "libcli/raw/raw_proto.h"
  26 #include "libcli/composite/composite.h"
  27 #include "libcli/smb_composite/smb_composite.h"
  28 #include "libcli/auth/libcli_auth.h"
  29 #include "auth/auth.h"
  30 #include "auth/gensec/gensec.h"
  31 #include "auth/credentials/credentials.h"
  32 #include "version.h"
  33 #include "param/param.h"
  34 #include "libcli/smb/smbXcli_base.h"
  35
  36 struct sesssetup_state {
  37         union smb_sesssetup setup;
  38         NTSTATUS remote_status;
  39         NTSTATUS gensec_status;
  40         struct smb_composite_sesssetup *io;
  41         struct smbcli_request *req;
  42 };
  43
  44 static int sesssetup_state_destructor(struct sesssetup_state *state)
  45 {
  46         if (state->req) {
  47                 talloc_free(state->req);
  48                 state->req = NULL;
  49         }
  50
  51         return 0;
  52 }
  53
  54 static NTSTATUS session_setup_old(struct composite_context *c,
  55                                   struct smbcli_session *session,
  56                                   struct smb_composite_sesssetup *io,
  57                                   struct smbcli_request **req);
  58 static NTSTATUS session_setup_nt1(struct composite_context *c,
  59                                   struct smbcli_session *session,
  60                                   struct smb_composite_sesssetup *io,
  61                                   struct smbcli_request **req);
  62 static NTSTATUS session_setup_spnego(struct composite_context *c,
  63                                      struct smbcli_session *session,
  64                                      struct smb_composite_sesssetup *io,
  65                                      struct smbcli_request **req);
  66
  67 /*
  68   store the user session key for a transport
  69 */
  70 static void set_user_session_key(struct smbcli_session *session,
  71                                  const DATA_BLOB *session_key)
  72 {
  73         session->user_session_key = data_blob_talloc(session,
  74                                                      session_key->data,
  75                                                      session_key->length);
  76 }
  77
  78 /*
  79   handler for completion of a smbcli_request sub-request
  80 */
  81 static void request_handler(struct smbcli_request *req)
  82 {
  83         struct composite_context *c = (struct composite_context *)req->async.private_data;
  84         struct sesssetup_state *state = talloc_get_type(c->private_data, struct sesssetup_state);
  85         struct smbcli_session *session = req->session;
  86         DATA_BLOB null_data_blob = data_blob(NULL, 0);
  87         NTSTATUS session_key_err, nt_status;
  88         struct smbcli_request *check_req = NULL;
  89         const char *os = NULL;
  90         const char *lanman = NULL;
  91
  92         if (req->sign_caller_checks) {
  93                 req->do_not_free = true;
  94                 check_req = req;
  95         }
  96
  97         state->remote_status = smb_raw_sesssetup_recv(req, state, &state->setup);
  98         c->status = state->remote_status;
  99         state->req = NULL;
 100
 101         /*
 102          * we only need to check the signature if the
 103          * NT_STATUS_OK is returned
 104          */
 105         if (!NT_STATUS_IS_OK(state->remote_status)) {
 106                 talloc_free(check_req);
 107                 check_req = NULL;
 108         }
 109
 110         switch (state->setup.old.level) {
 111         case RAW_SESSSETUP_OLD:
 112                 state->io->out.vuid = state->setup.old.out.vuid;
 113                 /* This doesn't work, as this only happens on old
 114                  * protocols, where this comparison won't match. */
 115                 if (NT_STATUS_EQUAL(c->status, NT_STATUS_LOGON_FAILURE)) {
 116                         /* we neet to reset the vuid for a new try */
 117                         session->vuid = 0;
 118                         if (cli_credentials_wrong_password(state->io->in.credentials)) {
 119                                 nt_status = session_setup_old(c, session,
 120                                                               state->io,
 121                                                               &state->req);
 122                                 if (NT_STATUS_IS_OK(nt_status)) {
 123                                         talloc_free(check_req);
 124                                         c->status = nt_status;
 125                                         composite_continue_smb(c, state->req, request_handler, c);
 126                                         return;
 127                                 }
 128                         }
 129                 }
 130                 os = state->setup.old.out.os;
 131                 lanman = state->setup.old.out.lanman;
 132                 break;
 133
 134         case RAW_SESSSETUP_NT1:
 135                 state->io->out.vuid = state->setup.nt1.out.vuid;
 136                 if (NT_STATUS_EQUAL(c->status, NT_STATUS_LOGON_FAILURE)) {
 137                         /* we neet to reset the vuid for a new try */
 138                         session->vuid = 0;
 139                         if (cli_credentials_wrong_password(state->io->in.credentials)) {
 140                                 nt_status = session_setup_nt1(c, session,
 141                                                               state->io,
 142                                                               &state->req);
 143                                 if (NT_STATUS_IS_OK(nt_status)) {
 144                                         talloc_free(check_req);
 145                                         c->status = nt_status;
 146                                         composite_continue_smb(c, state->req, request_handler, c);
 147                                         return;
 148                                 }
 149                         }
 150                 }
 151                 os = state->setup.nt1.out.os;
 152                 lanman = state->setup.nt1.out.lanman;
 153                 break;
 154
 155         case RAW_SESSSETUP_SPNEGO:
 156                 state->io->out.vuid = state->setup.spnego.out.vuid;
 157                 if (NT_STATUS_EQUAL(c->status, NT_STATUS_LOGON_FAILURE)) {
 158                         /* we need to reset the vuid for a new try */
 159                         session->vuid = 0;
 160                         if (cli_credentials_wrong_password(state->io->in.credentials)) {
 161                                 nt_status = session_setup_spnego(c, session,
 162                                                                       state->io,
 163                                                                       &state->req);
 164                                 if (NT_STATUS_IS_OK(nt_status)) {
 165                                         talloc_free(check_req);
 166                                         c->status = nt_status;
 167                                         composite_continue_smb(c, state->req, request_handler, c);
 168                                         return;
 169                                 }
 170                         }
 171                 }
 172                 if (!NT_STATUS_EQUAL(c->status, NT_STATUS_MORE_PROCESSING_REQUIRED) &&
 173                     !NT_STATUS_IS_OK(c->status)) {
 174                         break;
 175                 }
 176                 if (NT_STATUS_EQUAL(state->gensec_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 177
 178                         /* The status value here, from the earlier pass at GENSEC is
 179                          * vital to the security of the system.  Even if the other end
 180                          * accepts, if GENSEC claims 'MORE_PROCESSING_REQUIRED' then
 181                          * you must keep feeding it blobs, or else the remote
 182                          * host/attacker might avoid mutal authentication
 183                          * requirements */
 184
 185                         state->gensec_status = gensec_update(session->gensec, state, c->event_ctx,
 186                                                          state->setup.spnego.out.secblob,
 187                                                          &state->setup.spnego.in.secblob);
 188                         c->status = state->gensec_status;
 189                         if (!NT_STATUS_EQUAL(c->status, NT_STATUS_MORE_PROCESSING_REQUIRED) &&
 190                             !NT_STATUS_IS_OK(c->status)) {
 191                                 break;
 192                         }
 193                 } else {
 194                         state->setup.spnego.in.secblob = data_blob(NULL, 0);
 195                 }
 196
 197                 if (NT_STATUS_IS_OK(state->remote_status)) {
 198                         if (state->setup.spnego.in.secblob.length) {
 199                                 c->status = NT_STATUS_INTERNAL_ERROR;
 200                                 break;
 201                         }
 202                         session_key_err = gensec_session_key(session->gensec, session, &session->user_session_key);
 203                         if (NT_STATUS_IS_OK(session_key_err)) {
 204                                 smb1cli_conn_activate_signing(session->transport->conn,
 205                                                               session->user_session_key,
 206                                                               null_data_blob);
 207                         }
 208                 }
 209
 210                 if (state->setup.spnego.in.secblob.length) {
 211                         /*
 212                          * set the session->vuid value only for calling
 213                          * smb_raw_sesssetup_send()
 214                          */
 215                         uint16_t vuid = session->vuid;
 216                         session->vuid = state->io->out.vuid;
 217                         state->req = smb_raw_sesssetup_send(session, &state->setup);
 218                         session->vuid = vuid;
 219                         if (state->req &&
 220                             !smb1cli_conn_signing_is_active(state->req->transport->conn)) {
 221                                 state->req->sign_caller_checks = true;
 222                         }
 223                         composite_continue_smb(c, state->req, request_handler, c);
 224                         return;
 225                 }
 226                 os = state->setup.spnego.out.os;
 227                 lanman = state->setup.spnego.out.lanman;
 228                 break;
 229
 230         case RAW_SESSSETUP_SMB2:
 231                 c->status = NT_STATUS_INTERNAL_ERROR;
 232                 break;
 233         }
 234
 235         if (check_req) {
 236                 bool ok;
 237
 238                 check_req->sign_caller_checks = false;
 239
 240                 ok = smb1cli_conn_check_signing(check_req->transport->conn,
 241                                                 check_req->in.buffer, 1);
 242                 if (!ok) {
 243                         c->status = NT_STATUS_ACCESS_DENIED;
 244                 }
 245                 talloc_free(check_req);
 246                 check_req = NULL;
 247         }
 248
 249         if (!NT_STATUS_IS_OK(c->status)) {
 250                 composite_error(c, c->status);
 251                 return;
 252         }
 253
 254         if (os) {
 255                 session->os = talloc_strdup(session, os);
 256                 if (composite_nomem(session->os, c)) return;
 257         } else {
 258                 session->os = NULL;
 259         }
 260         if (lanman) {
 261                 session->lanman = talloc_strdup(session, lanman);
 262                 if (composite_nomem(session->lanman, c)) return;
 263         } else {
 264                 session->lanman = NULL;
 265         }
 266
 267         composite_done(c);
 268 }
 269
 270
 271 /*
 272   send a nt1 style session setup
 273 */
 274 static NTSTATUS session_setup_nt1(struct composite_context *c,
 275                                   struct smbcli_session *session,
 276                                   struct smb_composite_sesssetup *io,
 277                                   struct smbcli_request **req)
 278 {
 279         NTSTATUS nt_status = NT_STATUS_INTERNAL_ERROR;
 280         struct sesssetup_state *state = talloc_get_type(c->private_data,
 281                                                         struct sesssetup_state);
 282         const char *domain = cli_credentials_get_domain(io->in.credentials);
 283
 284         /*
 285          * domain controllers tend to reject the NTLM v2 blob
 286          * if the netbiosname is not valid (e.g. IP address or FQDN)
 287          * so just leave it away (as Windows client do)
 288          */
 289         DATA_BLOB names_blob = NTLMv2_generate_names_blob(state, NULL, domain);
 290
 291         DATA_BLOB session_key = data_blob(NULL, 0);
 292         int flags = CLI_CRED_NTLM_AUTH;
 293
 294         if (session->options.lanman_auth) {
 295                 flags |= CLI_CRED_LANMAN_AUTH;
 296         }
 297
 298         if (session->options.ntlmv2_auth) {
 299                 flags |= CLI_CRED_NTLMv2_AUTH;
 300         }
 301
 302         state->setup.nt1.level           = RAW_SESSSETUP_NT1;
 303         state->setup.nt1.in.bufsize      = session->transport->options.max_xmit;
 304         state->setup.nt1.in.mpx_max      = session->transport->options.max_mux;
 305         state->setup.nt1.in.vc_num       = 1;
 306         state->setup.nt1.in.sesskey      = io->in.sesskey;
 307         state->setup.nt1.in.capabilities = io->in.capabilities;
 308         state->setup.nt1.in.os           = "Unix";
 309         state->setup.nt1.in.lanman       = talloc_asprintf(state, "Samba %s", SAMBA_VERSION_STRING);
 310
 311         cli_credentials_get_ntlm_username_domain(io->in.credentials, state,
 312                                                  &state->setup.nt1.in.user,
 313                                                  &state->setup.nt1.in.domain);
 314
 315
 316         if (session->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 317                 nt_status = cli_credentials_get_ntlm_response(io->in.credentials, state,
 318                                                               &flags,
 319                                                               session->transport->negotiate.secblob,
 320                                                               names_blob,
 321                                                               &state->setup.nt1.in.password1,
 322                                                               &state->setup.nt1.in.password2,
 323                                                               NULL, &session_key);
 324                 NT_STATUS_NOT_OK_RETURN(nt_status);
 325         } else if (session->options.plaintext_auth) {
 326                 const char *password = cli_credentials_get_password(io->in.credentials);
 327                 state->setup.nt1.in.password1 = data_blob_talloc(state, password, strlen(password));
 328                 state->setup.nt1.in.password2 = data_blob(NULL, 0);
 329         } else {
 330                 /* could match windows client and return 'cannot logon from this workstation', but it just confuses everybody */
 331                 return NT_STATUS_INVALID_PARAMETER;
 332         }
 333
 334         *req = smb_raw_sesssetup_send(session, &state->setup);
 335         if (!*req) {
 336                 return NT_STATUS_NO_MEMORY;
 337         }
 338
 339         if (NT_STATUS_IS_OK(nt_status)) {
 340                 smb1cli_conn_activate_signing(session->transport->conn,
 341                                               session_key,
 342                                               state->setup.nt1.in.password2);
 343                 set_user_session_key(session, &session_key);
 344
 345                 data_blob_free(&session_key);
 346         }
 347
 348         return (*req)->status;
 349 }
 350
 351
 352 /*
 353   old style session setup (pre NT1 protocol level)
 354 */
 355 static NTSTATUS session_setup_old(struct composite_context *c,
 356                                   struct smbcli_session *session,
 357                                   struct smb_composite_sesssetup *io,
 358                                   struct smbcli_request **req)
 359 {
 360         NTSTATUS nt_status;
 361         struct sesssetup_state *state = talloc_get_type(c->private_data,
 362                                                         struct sesssetup_state);
 363         const char *password = cli_credentials_get_password(io->in.credentials);
 364         const char *domain = cli_credentials_get_domain(io->in.credentials);
 365
 366         /*
 367          * domain controllers tend to reject the NTLM v2 blob
 368          * if the netbiosname is not valid (e.g. IP address or FQDN)
 369          * so just leave it away (as Windows client do)
 370          */
 371         DATA_BLOB names_blob = NTLMv2_generate_names_blob(state, NULL, domain);
 372
 373         DATA_BLOB session_key;
 374         int flags = 0;
 375         if (session->options.lanman_auth) {
 376                 flags |= CLI_CRED_LANMAN_AUTH;
 377         }
 378
 379         if (session->options.ntlmv2_auth) {
 380                 flags |= CLI_CRED_NTLMv2_AUTH;
 381         }
 382
 383         state->setup.old.level      = RAW_SESSSETUP_OLD;
 384         state->setup.old.in.bufsize = session->transport->options.max_xmit;
 385         state->setup.old.in.mpx_max = session->transport->options.max_mux;
 386         state->setup.old.in.vc_num  = 1;
 387         state->setup.old.in.sesskey = io->in.sesskey;
 388         state->setup.old.in.os      = "Unix";
 389         state->setup.old.in.lanman  = talloc_asprintf(state, "Samba %s", SAMBA_VERSION_STRING);
 390         cli_credentials_get_ntlm_username_domain(io->in.credentials, state,
 391                                                  &state->setup.old.in.user,
 392                                                  &state->setup.old.in.domain);
 393
 394         if (session->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 395                 nt_status = cli_credentials_get_ntlm_response(io->in.credentials, state,
 396                                                               &flags,
 397                                                               session->transport->negotiate.secblob,
 398                                                               names_blob,
 399                                                               &state->setup.old.in.password,
 400                                                               NULL,
 401                                                               NULL, &session_key);
 402                 NT_STATUS_NOT_OK_RETURN(nt_status);
 403                 set_user_session_key(session, &session_key);
 404
 405                 data_blob_free(&session_key);
 406         } else if (session->options.plaintext_auth) {
 407                 state->setup.old.in.password = data_blob_talloc(state, password, strlen(password));
 408         } else {
 409                 /* could match windows client and return 'cannot logon from this workstation', but it just confuses everybody */
 410                 return NT_STATUS_INVALID_PARAMETER;
 411         }
 412
 413         *req = smb_raw_sesssetup_send(session, &state->setup);
 414         if (!*req) {
 415                 return NT_STATUS_NO_MEMORY;
 416         }
 417         return (*req)->status;
 418 }
 419
 420
 421 /*
 422   Modern, all singing, all dancing extended security (and possibly SPNEGO) request
 423 */
 424 static NTSTATUS session_setup_spnego(struct composite_context *c,
 425                                      struct smbcli_session *session,
 426                                      struct smb_composite_sesssetup *io,
 427                                      struct smbcli_request **req)
 428 {
 429         struct sesssetup_state *state = talloc_get_type(c->private_data, struct sesssetup_state);
 430         NTSTATUS status;
 431         const char *chosen_oid = NULL;
 432
 433         state->setup.spnego.level           = RAW_SESSSETUP_SPNEGO;
 434         state->setup.spnego.in.bufsize      = session->transport->options.max_xmit;
 435         state->setup.spnego.in.mpx_max      = session->transport->options.max_mux;
 436         state->setup.spnego.in.vc_num       = 1;
 437         state->setup.spnego.in.sesskey      = io->in.sesskey;
 438         state->setup.spnego.in.capabilities = io->in.capabilities;
 439         state->setup.spnego.in.os           = "Unix";
 440         state->setup.spnego.in.lanman       = talloc_asprintf(state, "Samba %s", SAMBA_VERSION_STRING);
 441         state->setup.spnego.in.workgroup    = io->in.workgroup;
 442
 443         status = gensec_client_start(session, &session->gensec,
 444                                      io->in.gensec_settings);
 445         if (!NT_STATUS_IS_OK(status)) {
 446                 DEBUG(1, ("Failed to start GENSEC client mode: %s\n", nt_errstr(status)));
 447                 return status;
 448         }
 449
 450         gensec_want_feature(session->gensec, GENSEC_FEATURE_SESSION_KEY);
 451
 452         status = gensec_set_credentials(session->gensec, io->in.credentials);
 453         if (!NT_STATUS_IS_OK(status)) {
 454                 DEBUG(1, ("Failed to start set GENSEC client credentials: %s\n",
 455                           nt_errstr(status)));
 456                 return status;
 457         }
 458
 459         status = gensec_set_target_hostname(session->gensec,
 460                         smbXcli_conn_remote_name(session->transport->conn));
 461         if (!NT_STATUS_IS_OK(status)) {
 462                 DEBUG(1, ("Failed to start set GENSEC target hostname: %s\n",
 463                           nt_errstr(status)));
 464                 return status;
 465         }
 466
 467         status = gensec_set_target_service(session->gensec, "cifs");
 468         if (!NT_STATUS_IS_OK(status)) {
 469                 DEBUG(1, ("Failed to start set GENSEC target service: %s\n",
 470                           nt_errstr(status)));
 471                 return status;
 472         }
 473
 474         if (session->transport->negotiate.secblob.length) {
 475                 chosen_oid = GENSEC_OID_SPNEGO;
 476                 status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
 477                 if (!NT_STATUS_IS_OK(status)) {
 478                         DEBUG(1, ("Failed to start set GENSEC client mechanism %s: %s\n",
 479                                   gensec_get_name_by_oid(session->gensec, chosen_oid), nt_errstr(status)));
 480                         chosen_oid = GENSEC_OID_NTLMSSP;
 481                         status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
 482                         if (!NT_STATUS_IS_OK(status)) {
 483                                 DEBUG(1, ("Failed to start set (fallback) GENSEC client mechanism %s: %s\n",
 484                                           gensec_get_name_by_oid(session->gensec, chosen_oid),
 485                                           nt_errstr(status)));
 486                         return status;
 487                         }
 488                 }
 489         } else {
 490                 /* without a sec blob, means raw NTLMSSP */
 491                 chosen_oid = GENSEC_OID_NTLMSSP;
 492                 status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
 493                 if (!NT_STATUS_IS_OK(status)) {
 494                         DEBUG(1, ("Failed to start set GENSEC client mechanism %s: %s\n",
 495                                   gensec_get_name_by_oid(session->gensec, chosen_oid), nt_errstr(status)));
 496                 }
 497         }
 498
 499         if ((const void *)chosen_oid == (const void *)GENSEC_OID_SPNEGO) {
 500                 status = gensec_update(session->gensec, state,
 501                                        c->event_ctx,
 502                                        session->transport->negotiate.secblob,
 503                                        &state->setup.spnego.in.secblob);
 504         } else {
 505                 status = gensec_update(session->gensec, state,
 506                                        c->event_ctx,
 507                                        data_blob(NULL, 0),
 508                                        &state->setup.spnego.in.secblob);
 509
 510         }
 511
 512         if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) &&
 513             !NT_STATUS_IS_OK(status)) {
 514                 DEBUG(1, ("Failed initial gensec_update with mechanism %s: %s\n",
 515                           gensec_get_name_by_oid(session->gensec, chosen_oid),
 516                           nt_errstr(status)));
 517                 return status;
 518         }
 519         state->gensec_status = status;
 520
 521         *req = smb_raw_sesssetup_send(session, &state->setup);
 522         if (!*req) {
 523                 return NT_STATUS_NO_MEMORY;
 524         }
 525
 526         /*
 527          * we need to check the signature ourself
 528          * as the session key might be the acceptor subkey
 529          * which comes within the response itself
 530          */
 531         if (!smb1cli_conn_signing_is_active((*req)->transport->conn)) {
 532                 (*req)->sign_caller_checks = true;
 533         }
 534
 535         return (*req)->status;
 536 }
 537
 538
 539 /*
 540   composite session setup function that hides the details of all the
 541   different session setup varients, including the multi-pass nature of
 542   the spnego varient
 543 */
 544 struct composite_context *smb_composite_sesssetup_send(struct smbcli_session *session,
 545                                                        struct smb_composite_sesssetup *io)
 546 {
 547         struct composite_context *c;
 548         struct sesssetup_state *state;
 549         NTSTATUS status;
 550
 551         c = composite_create(session, session->transport->ev);
 552         if (c == NULL) return NULL;
 553
 554         state = talloc_zero(c, struct sesssetup_state);
 555         if (composite_nomem(state, c)) return c;
 556         c->private_data = state;
 557
 558         state->io = io;
 559
 560         talloc_set_destructor(state, sesssetup_state_destructor);
 561
 562         /* no session setup at all in earliest protocol varients */
 563         if (session->transport->negotiate.protocol < PROTOCOL_LANMAN1) {
 564                 ZERO_STRUCT(io->out);
 565                 composite_done(c);
 566                 return c;
 567         }
 568
 569         /* see what session setup interface we will use */
 570         if (session->transport->negotiate.protocol < PROTOCOL_NT1) {
 571                 status = session_setup_old(c, session, io, &state->req);
 572         } else if (!session->transport->options.use_spnego ||
 573                    !(io->in.capabilities & CAP_EXTENDED_SECURITY)) {
 574                 status = session_setup_nt1(c, session, io, &state->req);
 575         } else {
 576                 status = session_setup_spnego(c, session, io, &state->req);
 577         }
 578
 579         if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
 580             NT_STATUS_IS_OK(status)) {
 581                 composite_continue_smb(c, state->req, request_handler, c);
 582                 return c;
 583         }
 584
 585         composite_error(c, status);
 586         return c;
 587 }
 588
 589
 590 /*
 591   receive a composite session setup reply
 592 */
 593 NTSTATUS smb_composite_sesssetup_recv(struct composite_context *c)
 594 {
 595         NTSTATUS status;
 596         status = composite_wait(c);
 597         talloc_free(c);
 598         return status;
 599 }
 600
 601 /*
 602   sync version of smb_composite_sesssetup
 603 */
 604 NTSTATUS smb_composite_sesssetup(struct smbcli_session *session, struct smb_composite_sesssetup *io)
 605 {
 606         struct composite_context *c = smb_composite_sesssetup_send(session, io);
 607         return smb_composite_sesssetup_recv(c);
 608 }