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
  35 struct sesssetup_state {
  36         union smb_sesssetup setup;
  37         NTSTATUS remote_status;
  38         NTSTATUS gensec_status;
  39         struct smb_composite_sesssetup *io;
  40         struct smbcli_request *req;
  41 };
  42
  43 static int sesssetup_state_destructor(struct sesssetup_state *state)
  44 {
  45         if (state->req) {
  46                 talloc_free(state->req);
  47                 state->req = NULL;
  48         }
  49
  50         return 0;
  51 }
  52
  53 static NTSTATUS session_setup_old(struct composite_context *c,
  54                                   struct smbcli_session *session,
  55                                   struct smb_composite_sesssetup *io,
  56                                   struct smbcli_request **req);
  57 static NTSTATUS session_setup_nt1(struct composite_context *c,
  58                                   struct smbcli_session *session,
  59                                   struct smb_composite_sesssetup *io,
  60                                   struct smbcli_request **req);
  61 static NTSTATUS session_setup_spnego(struct composite_context *c,
  62                                      struct smbcli_session *session,
  63                                      struct smb_composite_sesssetup *io,
  64                                      struct smbcli_request **req);
  65
  66 /*
  67   store the user session key for a transport
  68 */
  69 static void set_user_session_key(struct smbcli_session *session,
  70                                  const DATA_BLOB *session_key)
  71 {
  72         session->user_session_key = data_blob_talloc(session,
  73                                                      session_key->data,
  74                                                      session_key->length);
  75 }
  76
  77 /*
  78   handler for completion of a smbcli_request sub-request
  79 */
  80 static void request_handler(struct smbcli_request *req)
  81 {
  82         struct composite_context *c = (struct composite_context *)req->async.private_data;
  83         struct sesssetup_state *state = talloc_get_type(c->private_data, struct sesssetup_state);
  84         struct smbcli_session *session = req->session;
  85         DATA_BLOB null_data_blob = data_blob(NULL, 0);
  86         NTSTATUS session_key_err, nt_status;
  87         struct smbcli_request *check_req = NULL;
  88         const char *os = NULL;
  89         const char *lanman = NULL;
  90
  91         if (req->sign_caller_checks) {
  92                 req->do_not_free = true;
  93                 check_req = req;
  94         }
  95
  96         state->remote_status = smb_raw_sesssetup_recv(req, state, &state->setup);
  97         c->status = state->remote_status;
  98         state->req = NULL;
  99
 100         /*
 101          * we only need to check the signature if the
 102          * NT_STATUS_OK is returned
 103          */
 104         if (!NT_STATUS_IS_OK(state->remote_status)) {
 105                 talloc_free(check_req);
 106                 check_req = NULL;
 107         }
 108
 109         switch (state->setup.old.level) {
 110         case RAW_SESSSETUP_OLD:
 111                 state->io->out.vuid = state->setup.old.out.vuid;
 112                 /* This doesn't work, as this only happens on old
 113                  * protocols, where this comparison won't match. */
 114                 if (NT_STATUS_EQUAL(c->status, NT_STATUS_LOGON_FAILURE)) {
 115                         /* we neet to reset the vuid for a new try */
 116                         session->vuid = 0;
 117                         if (cli_credentials_wrong_password(state->io->in.credentials)) {
 118                                 nt_status = session_setup_old(c, session,
 119                                                               state->io,
 120                                                               &state->req);
 121                                 if (NT_STATUS_IS_OK(nt_status)) {
 122                                         talloc_free(check_req);
 123                                         c->status = nt_status;
 124                                         composite_continue_smb(c, state->req, request_handler, c);
 125                                         return;
 126                                 }
 127                         }
 128                 }
 129                 os = state->setup.old.out.os;
 130                 lanman = state->setup.old.out.lanman;
 131                 break;
 132
 133         case RAW_SESSSETUP_NT1:
 134                 state->io->out.vuid = state->setup.nt1.out.vuid;
 135                 if (NT_STATUS_EQUAL(c->status, NT_STATUS_LOGON_FAILURE)) {
 136                         /* we neet to reset the vuid for a new try */
 137                         session->vuid = 0;
 138                         if (cli_credentials_wrong_password(state->io->in.credentials)) {
 139                                 nt_status = session_setup_nt1(c, session,
 140                                                               state->io,
 141                                                               &state->req);
 142                                 if (NT_STATUS_IS_OK(nt_status)) {
 143                                         talloc_free(check_req);
 144                                         c->status = nt_status;
 145                                         composite_continue_smb(c, state->req, request_handler, c);
 146                                         return;
 147                                 }
 148                         }
 149                 }
 150                 os = state->setup.nt1.out.os;
 151                 lanman = state->setup.nt1.out.lanman;
 152                 break;
 153
 154         case RAW_SESSSETUP_SPNEGO:
 155                 state->io->out.vuid = state->setup.spnego.out.vuid;
 156                 if (NT_STATUS_EQUAL(c->status, NT_STATUS_LOGON_FAILURE)) {
 157                         /* we need to reset the vuid for a new try */
 158                         session->vuid = 0;
 159                         if (cli_credentials_wrong_password(state->io->in.credentials)) {
 160                                 nt_status = session_setup_spnego(c, session,
 161                                                                       state->io,
 162                                                                       &state->req);
 163                                 if (NT_STATUS_IS_OK(nt_status)) {
 164                                         talloc_free(check_req);
 165                                         c->status = nt_status;
 166                                         composite_continue_smb(c, state->req, request_handler, c);
 167                                         return;
 168                                 }
 169                         }
 170                 }
 171                 if (!NT_STATUS_EQUAL(c->status, NT_STATUS_MORE_PROCESSING_REQUIRED) &&
 172                     !NT_STATUS_IS_OK(c->status)) {
 173                         break;
 174                 }
 175                 if (NT_STATUS_EQUAL(state->gensec_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 176
 177                         /* The status value here, from the earlier pass at GENSEC is
 178                          * vital to the security of the system.  Even if the other end
 179                          * accepts, if GENSEC claims 'MORE_PROCESSING_REQUIRED' then
 180                          * you must keep feeding it blobs, or else the remote
 181                          * host/attacker might avoid mutal authentication
 182                          * requirements */
 183
 184                         state->gensec_status = gensec_update(session->gensec, state,
 185                                                          state->setup.spnego.out.secblob,
 186                                                          &state->setup.spnego.in.secblob);
 187                         c->status = state->gensec_status;
 188                         if (!NT_STATUS_EQUAL(c->status, NT_STATUS_MORE_PROCESSING_REQUIRED) &&
 189                             !NT_STATUS_IS_OK(c->status)) {
 190                                 break;
 191                         }
 192                 } else {
 193                         state->setup.spnego.in.secblob = data_blob(NULL, 0);
 194                 }
 195
 196                 if (NT_STATUS_IS_OK(state->remote_status)) {
 197                         if (state->setup.spnego.in.secblob.length) {
 198                                 c->status = NT_STATUS_INTERNAL_ERROR;
 199                                 break;
 200                         }
 201                         session_key_err = gensec_session_key(session->gensec, session, &session->user_session_key);
 202                         if (NT_STATUS_IS_OK(session_key_err)) {
 203                                 smbcli_transport_simple_set_signing(session->transport, session->user_session_key, null_data_blob);
 204                         }
 205                 }
 206
 207                 if (state->setup.spnego.in.secblob.length) {
 208                         /*
 209                          * set the session->vuid value only for calling
 210                          * smb_raw_sesssetup_send()
 211                          */
 212                         uint16_t vuid = session->vuid;
 213                         session->vuid = state->io->out.vuid;
 214                         state->req = smb_raw_sesssetup_send(session, &state->setup);
 215                         session->vuid = vuid;
 216                         if (state->req) {
 217                                 state->req->sign_caller_checks = true;
 218                         }
 219                         composite_continue_smb(c, state->req, request_handler, c);
 220                         return;
 221                 }
 222                 os = state->setup.spnego.out.os;
 223                 lanman = state->setup.spnego.out.lanman;
 224                 break;
 225
 226         case RAW_SESSSETUP_SMB2:
 227                 c->status = NT_STATUS_INTERNAL_ERROR;
 228                 break;
 229         }
 230
 231         if (check_req) {
 232                 check_req->sign_caller_checks = false;
 233                 if (!smbcli_request_check_sign_mac(check_req)) {
 234                         c->status = NT_STATUS_ACCESS_DENIED;
 235                 }
 236                 talloc_free(check_req);
 237                 check_req = NULL;
 238         }
 239
 240         /* enforce the local signing required flag */
 241         if (NT_STATUS_IS_OK(c->status) && !cli_credentials_is_anonymous(state->io->in.credentials)) {
 242                 if (!session->transport->negotiate.sign_info.doing_signing
 243                     && session->transport->negotiate.sign_info.mandatory_signing) {
 244                         DEBUG(0, ("SMB signing required, but server does not support it\n"));
 245                         c->status = NT_STATUS_ACCESS_DENIED;
 246                 }
 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         smbcli_temp_set_signing(session->transport);
 295
 296         if (session->options.lanman_auth) {
 297                 flags |= CLI_CRED_LANMAN_AUTH;
 298         }
 299
 300         if (session->options.ntlmv2_auth) {
 301                 flags |= CLI_CRED_NTLMv2_AUTH;
 302         }
 303
 304         state->setup.nt1.level           = RAW_SESSSETUP_NT1;
 305         state->setup.nt1.in.bufsize      = session->transport->options.max_xmit;
 306         state->setup.nt1.in.mpx_max      = session->transport->options.max_mux;
 307         state->setup.nt1.in.vc_num       = 1;
 308         state->setup.nt1.in.sesskey      = io->in.sesskey;
 309         state->setup.nt1.in.capabilities = io->in.capabilities;
 310         state->setup.nt1.in.os           = "Unix";
 311         state->setup.nt1.in.lanman       = talloc_asprintf(state, "Samba %s", SAMBA_VERSION_STRING);
 312
 313         cli_credentials_get_ntlm_username_domain(io->in.credentials, state,
 314                                                  &state->setup.nt1.in.user,
 315                                                  &state->setup.nt1.in.domain);
 316
 317
 318         if (session->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 319                 nt_status = cli_credentials_get_ntlm_response(io->in.credentials, state,
 320                                                               &flags,
 321                                                               session->transport->negotiate.secblob,
 322                                                               names_blob,
 323                                                               &state->setup.nt1.in.password1,
 324                                                               &state->setup.nt1.in.password2,
 325                                                               NULL, &session_key);
 326                 NT_STATUS_NOT_OK_RETURN(nt_status);
 327         } else if (session->options.plaintext_auth) {
 328                 const char *password = cli_credentials_get_password(io->in.credentials);
 329                 state->setup.nt1.in.password1 = data_blob_talloc(state, password, strlen(password));
 330                 state->setup.nt1.in.password2 = data_blob(NULL, 0);
 331         } else {
 332                 /* could match windows client and return 'cannot logon from this workstation', but it just confuses everybody */
 333                 return NT_STATUS_INVALID_PARAMETER;
 334         }
 335
 336         *req = smb_raw_sesssetup_send(session, &state->setup);
 337         if (!*req) {
 338                 return NT_STATUS_NO_MEMORY;
 339         }
 340
 341         if (NT_STATUS_IS_OK(nt_status)) {
 342                 smbcli_transport_simple_set_signing(session->transport, session_key,
 343                                                     state->setup.nt1.in.password2);
 344                 set_user_session_key(session, &session_key);
 345
 346                 data_blob_free(&session_key);
 347         }
 348
 349         return (*req)->status;
 350 }
 351
 352
 353 /*
 354   old style session setup (pre NT1 protocol level)
 355 */
 356 static NTSTATUS session_setup_old(struct composite_context *c,
 357                                   struct smbcli_session *session,
 358                                   struct smb_composite_sesssetup *io,
 359                                   struct smbcli_request **req)
 360 {
 361         NTSTATUS nt_status;
 362         struct sesssetup_state *state = talloc_get_type(c->private_data,
 363                                                         struct sesssetup_state);
 364         const char *password = cli_credentials_get_password(io->in.credentials);
 365         const char *domain = cli_credentials_get_domain(io->in.credentials);
 366
 367         /*
 368          * domain controllers tend to reject the NTLM v2 blob
 369          * if the netbiosname is not valid (e.g. IP address or FQDN)
 370          * so just leave it away (as Windows client do)
 371          */
 372         DATA_BLOB names_blob = NTLMv2_generate_names_blob(state, NULL, domain);
 373
 374         DATA_BLOB session_key;
 375         int flags = 0;
 376         if (session->options.lanman_auth) {
 377                 flags |= CLI_CRED_LANMAN_AUTH;
 378         }
 379
 380         if (session->options.ntlmv2_auth) {
 381                 flags |= CLI_CRED_NTLMv2_AUTH;
 382         }
 383
 384         state->setup.old.level      = RAW_SESSSETUP_OLD;
 385         state->setup.old.in.bufsize = session->transport->options.max_xmit;
 386         state->setup.old.in.mpx_max = session->transport->options.max_mux;
 387         state->setup.old.in.vc_num  = 1;
 388         state->setup.old.in.sesskey = io->in.sesskey;
 389         state->setup.old.in.os      = "Unix";
 390         state->setup.old.in.lanman  = talloc_asprintf(state, "Samba %s", SAMBA_VERSION_STRING);
 391         cli_credentials_get_ntlm_username_domain(io->in.credentials, state,
 392                                                  &state->setup.old.in.user,
 393                                                  &state->setup.old.in.domain);
 394
 395         if (session->transport->negotiate.sec_mode & NEGOTIATE_SECURITY_CHALLENGE_RESPONSE) {
 396                 nt_status = cli_credentials_get_ntlm_response(io->in.credentials, state,
 397                                                               &flags,
 398                                                               session->transport->negotiate.secblob,
 399                                                               names_blob,
 400                                                               &state->setup.old.in.password,
 401                                                               NULL,
 402                                                               NULL, &session_key);
 403                 NT_STATUS_NOT_OK_RETURN(nt_status);
 404                 set_user_session_key(session, &session_key);
 405
 406                 data_blob_free(&session_key);
 407         } else if (session->options.plaintext_auth) {
 408                 state->setup.old.in.password = data_blob_talloc(state, password, strlen(password));
 409         } else {
 410                 /* could match windows client and return 'cannot logon from this workstation', but it just confuses everybody */
 411                 return NT_STATUS_INVALID_PARAMETER;
 412         }
 413
 414         *req = smb_raw_sesssetup_send(session, &state->setup);
 415         if (!*req) {
 416                 return NT_STATUS_NO_MEMORY;
 417         }
 418         return (*req)->status;
 419 }
 420
 421
 422 /*
 423   Modern, all singing, all dancing extended security (and possibly SPNEGO) request
 424 */
 425 static NTSTATUS session_setup_spnego(struct composite_context *c,
 426                                      struct smbcli_session *session,
 427                                      struct smb_composite_sesssetup *io,
 428                                      struct smbcli_request **req)
 429 {
 430         struct sesssetup_state *state = talloc_get_type(c->private_data, struct sesssetup_state);
 431         NTSTATUS status;
 432         const char *chosen_oid = NULL;
 433
 434         state->setup.spnego.level           = RAW_SESSSETUP_SPNEGO;
 435         state->setup.spnego.in.bufsize      = session->transport->options.max_xmit;
 436         state->setup.spnego.in.mpx_max      = session->transport->options.max_mux;
 437         state->setup.spnego.in.vc_num       = 1;
 438         state->setup.spnego.in.sesskey      = io->in.sesskey;
 439         state->setup.spnego.in.capabilities = io->in.capabilities;
 440         state->setup.spnego.in.os           = "Unix";
 441         state->setup.spnego.in.lanman       = talloc_asprintf(state, "Samba %s", SAMBA_VERSION_STRING);
 442         state->setup.spnego.in.workgroup    = io->in.workgroup;
 443
 444         smbcli_temp_set_signing(session->transport);
 445
 446         status = gensec_client_start(session, &session->gensec, c->event_ctx,
 447                                      io->in.gensec_settings);
 448         if (!NT_STATUS_IS_OK(status)) {
 449                 DEBUG(1, ("Failed to start GENSEC client mode: %s\n", nt_errstr(status)));
 450                 return status;
 451         }
 452
 453         gensec_want_feature(session->gensec, GENSEC_FEATURE_SESSION_KEY);
 454
 455         status = gensec_set_credentials(session->gensec, io->in.credentials);
 456         if (!NT_STATUS_IS_OK(status)) {
 457                 DEBUG(1, ("Failed to start set GENSEC client credentials: %s\n",
 458                           nt_errstr(status)));
 459                 return status;
 460         }
 461
 462         status = gensec_set_target_hostname(session->gensec, session->transport->socket->hostname);
 463         if (!NT_STATUS_IS_OK(status)) {
 464                 DEBUG(1, ("Failed to start set GENSEC target hostname: %s\n",
 465                           nt_errstr(status)));
 466                 return status;
 467         }
 468
 469         status = gensec_set_target_service(session->gensec, "cifs");
 470         if (!NT_STATUS_IS_OK(status)) {
 471                 DEBUG(1, ("Failed to start set GENSEC target service: %s\n",
 472                           nt_errstr(status)));
 473                 return status;
 474         }
 475
 476         if (session->transport->negotiate.secblob.length) {
 477                 chosen_oid = GENSEC_OID_SPNEGO;
 478                 status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
 479                 if (!NT_STATUS_IS_OK(status)) {
 480                         DEBUG(1, ("Failed to start set GENSEC client mechanism %s: %s\n",
 481                                   gensec_get_name_by_oid(session->gensec, chosen_oid), nt_errstr(status)));
 482                         chosen_oid = GENSEC_OID_NTLMSSP;
 483                         status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
 484                         if (!NT_STATUS_IS_OK(status)) {
 485                                 DEBUG(1, ("Failed to start set (fallback) GENSEC client mechanism %s: %s\n",
 486                                           gensec_get_name_by_oid(session->gensec, chosen_oid),
 487                                           nt_errstr(status)));
 488                         return status;
 489                         }
 490                 }
 491         } else {
 492                 /* without a sec blob, means raw NTLMSSP */
 493                 chosen_oid = GENSEC_OID_NTLMSSP;
 494                 status = gensec_start_mech_by_oid(session->gensec, chosen_oid);
 495                 if (!NT_STATUS_IS_OK(status)) {
 496                         DEBUG(1, ("Failed to start set GENSEC client mechanism %s: %s\n",
 497                                   gensec_get_name_by_oid(session->gensec, chosen_oid), nt_errstr(status)));
 498                 }
 499         }
 500
 501         if ((const void *)chosen_oid == (const void *)GENSEC_OID_SPNEGO) {
 502                 status = gensec_update(session->gensec, state,
 503                                        session->transport->negotiate.secblob,
 504                                        &state->setup.spnego.in.secblob);
 505         } else {
 506                 status = gensec_update(session->gensec, state,
 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         (*req)->sign_caller_checks = true;
 532
 533         return (*req)->status;
 534 }
 535
 536
 537 /*
 538   composite session setup function that hides the details of all the
 539   different session setup varients, including the multi-pass nature of
 540   the spnego varient
 541 */
 542 struct composite_context *smb_composite_sesssetup_send(struct smbcli_session *session,
 543                                                        struct smb_composite_sesssetup *io)
 544 {
 545         struct composite_context *c;
 546         struct sesssetup_state *state;
 547         NTSTATUS status;
 548
 549         c = composite_create(session, session->transport->socket->event.ctx);
 550         if (c == NULL) return NULL;
 551
 552         state = talloc_zero(c, struct sesssetup_state);
 553         if (composite_nomem(state, c)) return c;
 554         c->private_data = state;
 555
 556         state->io = io;
 557
 558         talloc_set_destructor(state, sesssetup_state_destructor);
 559
 560         /* no session setup at all in earliest protocol varients */
 561         if (session->transport->negotiate.protocol < PROTOCOL_LANMAN1) {
 562                 ZERO_STRUCT(io->out);
 563                 composite_done(c);
 564                 return c;
 565         }
 566
 567         /* see what session setup interface we will use */
 568         if (session->transport->negotiate.protocol < PROTOCOL_NT1) {
 569                 status = session_setup_old(c, session, io, &state->req);
 570         } else if (!session->transport->options.use_spnego ||
 571                    !(io->in.capabilities & CAP_EXTENDED_SECURITY)) {
 572                 status = session_setup_nt1(c, session, io, &state->req);
 573         } else {
 574                 status = session_setup_spnego(c, session, io, &state->req);
 575         }
 576
 577         if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
 578             NT_STATUS_IS_OK(status)) {
 579                 composite_continue_smb(c, state->req, request_handler, c);
 580                 return c;
 581         }
 582
 583         composite_error(c, status);
 584         return c;
 585 }
 586
 587
 588 /*
 589   receive a composite session setup reply
 590 */
 591 NTSTATUS smb_composite_sesssetup_recv(struct composite_context *c)
 592 {
 593         NTSTATUS status;
 594         status = composite_wait(c);
 595         talloc_free(c);
 596         return status;
 597 }
 598
 599 /*
 600   sync version of smb_composite_sesssetup
 601 */
 602 NTSTATUS smb_composite_sesssetup(struct smbcli_session *session, struct smb_composite_sesssetup *io)
 603 {
 604         struct composite_context *c = smb_composite_sesssetup_send(session, io);
 605         return smb_composite_sesssetup_recv(c);
 606 }