source3/libsmb/clifsinfo.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    FS info functions
   4    Copyright (C) Stefan (metze) Metzmacher      2003
   5    Copyright (C) Jeremy Allison 2007
   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
  23 /****************************************************************************
  24  Get UNIX extensions version info.
  25 ****************************************************************************/
  26
  27 bool cli_unix_extensions_version(struct cli_state *cli, uint16 *pmajor, uint16 *pminor,
  28                                         uint32 *pcaplow, uint32 *pcaphigh)
  29 {
  30         bool ret = False;
  31         uint16 setup;
  32         char param[2];
  33         char *rparam=NULL, *rdata=NULL;
  34         unsigned int rparam_count=0, rdata_count=0;
  35
  36         setup = TRANSACT2_QFSINFO;
  37
  38         SSVAL(param,0,SMB_QUERY_CIFS_UNIX_INFO);
  39
  40         if (!cli_send_trans(cli, SMBtrans2,
  41                     NULL,
  42                     0, 0,
  43                     &setup, 1, 0,
  44                     param, 2, 0,
  45                     NULL, 0, 560)) {
  46                 goto cleanup;
  47         }
  48
  49         if (!cli_receive_trans(cli, SMBtrans2,
  50                               &rparam, &rparam_count,
  51                               &rdata, &rdata_count)) {
  52                 goto cleanup;
  53         }
  54
  55         if (cli_is_error(cli)) {
  56                 ret = False;
  57                 goto cleanup;
  58         } else {
  59                 ret = True;
  60         }
  61
  62         if (rdata_count < 12) {
  63                 goto cleanup;
  64         }
  65
  66         *pmajor = SVAL(rdata,0);
  67         *pminor = SVAL(rdata,2);
  68         cli->posix_capabilities = *pcaplow = IVAL(rdata,4);
  69         *pcaphigh = IVAL(rdata,8);
  70
  71         /* todo: but not yet needed
  72          *       return the other stuff
  73          */
  74
  75 cleanup:
  76         SAFE_FREE(rparam);
  77         SAFE_FREE(rdata);
  78
  79         return ret;
  80 }
  81
  82 /****************************************************************************
  83  Set UNIX extensions capabilities.
  84 ****************************************************************************/
  85
  86 bool cli_set_unix_extensions_capabilities(struct cli_state *cli, uint16 major, uint16 minor,
  87                                         uint32 caplow, uint32 caphigh)
  88 {
  89         bool ret = False;
  90         uint16 setup;
  91         char param[4];
  92         char data[12];
  93         char *rparam=NULL, *rdata=NULL;
  94         unsigned int rparam_count=0, rdata_count=0;
  95
  96         setup = TRANSACT2_SETFSINFO;
  97
  98         SSVAL(param,0,0);
  99         SSVAL(param,2,SMB_SET_CIFS_UNIX_INFO);
 100
 101         SSVAL(data,0,major);
 102         SSVAL(data,2,minor);
 103         SIVAL(data,4,caplow);
 104         SIVAL(data,8,caphigh);
 105
 106         if (!cli_send_trans(cli, SMBtrans2,
 107                     NULL,
 108                     0, 0,
 109                     &setup, 1, 0,
 110                     param, 4, 0,
 111                     data, 12, 560)) {
 112                 goto cleanup;
 113         }
 114
 115         if (!cli_receive_trans(cli, SMBtrans2,
 116                               &rparam, &rparam_count,
 117                               &rdata, &rdata_count)) {
 118                 goto cleanup;
 119         }
 120
 121         if (cli_is_error(cli)) {
 122                 ret = False;
 123                 goto cleanup;
 124         } else {
 125                 ret = True;
 126         }
 127
 128 cleanup:
 129         SAFE_FREE(rparam);
 130         SAFE_FREE(rdata);
 131
 132         return ret;
 133 }
 134
 135 bool cli_get_fs_attr_info(struct cli_state *cli, uint32 *fs_attr)
 136 {
 137         bool ret = False;
 138         uint16 setup;
 139         char param[2];
 140         char *rparam=NULL, *rdata=NULL;
 141         unsigned int rparam_count=0, rdata_count=0;
 142
 143         if (!cli||!fs_attr)
 144                 smb_panic("cli_get_fs_attr_info() called with NULL Pionter!");
 145
 146         setup = TRANSACT2_QFSINFO;
 147
 148         SSVAL(param,0,SMB_QUERY_FS_ATTRIBUTE_INFO);
 149
 150         if (!cli_send_trans(cli, SMBtrans2,
 151                     NULL,
 152                     0, 0,
 153                     &setup, 1, 0,
 154                     param, 2, 0,
 155                     NULL, 0, 560)) {
 156                 goto cleanup;
 157         }
 158
 159         if (!cli_receive_trans(cli, SMBtrans2,
 160                               &rparam, &rparam_count,
 161                               &rdata, &rdata_count)) {
 162                 goto cleanup;
 163         }
 164
 165         if (cli_is_error(cli)) {
 166                 ret = False;
 167                 goto cleanup;
 168         } else {
 169                 ret = True;
 170         }
 171
 172         if (rdata_count < 12) {
 173                 goto cleanup;
 174         }
 175
 176         *fs_attr = IVAL(rdata,0);
 177
 178         /* todo: but not yet needed
 179          *       return the other stuff
 180          */
 181
 182 cleanup:
 183         SAFE_FREE(rparam);
 184         SAFE_FREE(rdata);
 185
 186         return ret;
 187 }
 188
 189 bool cli_get_fs_volume_info_old(struct cli_state *cli, fstring volume_name, uint32 *pserial_number)
 190 {
 191         bool ret = False;
 192         uint16 setup;
 193         char param[2];
 194         char *rparam=NULL, *rdata=NULL;
 195         unsigned int rparam_count=0, rdata_count=0;
 196         unsigned char nlen;
 197
 198         setup = TRANSACT2_QFSINFO;
 199
 200         SSVAL(param,0,SMB_INFO_VOLUME);
 201
 202         if (!cli_send_trans(cli, SMBtrans2,
 203                     NULL,
 204                     0, 0,
 205                     &setup, 1, 0,
 206                     param, 2, 0,
 207                     NULL, 0, 560)) {
 208                 goto cleanup;
 209         }
 210
 211         if (!cli_receive_trans(cli, SMBtrans2,
 212                               &rparam, &rparam_count,
 213                               &rdata, &rdata_count)) {
 214                 goto cleanup;
 215         }
 216
 217         if (cli_is_error(cli)) {
 218                 ret = False;
 219                 goto cleanup;
 220         } else {
 221                 ret = True;
 222         }
 223
 224         if (rdata_count < 5) {
 225                 goto cleanup;
 226         }
 227
 228         if (pserial_number) {
 229                 *pserial_number = IVAL(rdata,0);
 230         }
 231         nlen = CVAL(rdata,l2_vol_cch);
 232         clistr_pull(cli->inbuf, volume_name, rdata + l2_vol_szVolLabel,
 233                     sizeof(fstring), nlen, STR_NOALIGN);
 234
 235         /* todo: but not yet needed
 236          *       return the other stuff
 237          */
 238
 239 cleanup:
 240         SAFE_FREE(rparam);
 241         SAFE_FREE(rdata);
 242
 243         return ret;
 244 }
 245
 246 bool cli_get_fs_volume_info(struct cli_state *cli, fstring volume_name, uint32 *pserial_number, time_t *pdate)
 247 {
 248         bool ret = False;
 249         uint16 setup;
 250         char param[2];
 251         char *rparam=NULL, *rdata=NULL;
 252         unsigned int rparam_count=0, rdata_count=0;
 253         unsigned int nlen;
 254
 255         setup = TRANSACT2_QFSINFO;
 256
 257         SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
 258
 259         if (!cli_send_trans(cli, SMBtrans2,
 260                     NULL,
 261                     0, 0,
 262                     &setup, 1, 0,
 263                     param, 2, 0,
 264                     NULL, 0, 560)) {
 265                 goto cleanup;
 266         }
 267
 268         if (!cli_receive_trans(cli, SMBtrans2,
 269                               &rparam, &rparam_count,
 270                               &rdata, &rdata_count)) {
 271                 goto cleanup;
 272         }
 273
 274         if (cli_is_error(cli)) {
 275                 ret = False;
 276                 goto cleanup;
 277         } else {
 278                 ret = True;
 279         }
 280
 281         if (rdata_count < 19) {
 282                 goto cleanup;
 283         }
 284
 285         if (pdate) {
 286                 struct timespec ts;
 287                 ts = interpret_long_date(rdata);
 288                 *pdate = ts.tv_sec;
 289         }
 290         if (pserial_number) {
 291                 *pserial_number = IVAL(rdata,8);
 292         }
 293         nlen = IVAL(rdata,12);
 294         clistr_pull(cli->inbuf, volume_name, rdata + 18, sizeof(fstring),
 295                     nlen, STR_UNICODE);
 296
 297         /* todo: but not yet needed
 298          *       return the other stuff
 299          */
 300
 301 cleanup:
 302         SAFE_FREE(rparam);
 303         SAFE_FREE(rdata);
 304
 305         return ret;
 306 }
 307
 308 /******************************************************************************
 309  Send/receive the request encryption blob.
 310 ******************************************************************************/
 311
 312 static NTSTATUS enc_blob_send_receive(struct cli_state *cli, DATA_BLOB *in, DATA_BLOB *out, DATA_BLOB *param_out)
 313 {
 314         uint16 setup;
 315         char param[4];
 316         char *rparam=NULL, *rdata=NULL;
 317         unsigned int rparam_count=0, rdata_count=0;
 318         NTSTATUS status = NT_STATUS_OK;
 319
 320         setup = TRANSACT2_SETFSINFO;
 321
 322         SSVAL(param,0,0);
 323         SSVAL(param,2,SMB_REQUEST_TRANSPORT_ENCRYPTION);
 324
 325         if (!cli_send_trans(cli, SMBtrans2,
 326                                 NULL,
 327                                 0, 0,
 328                                 &setup, 1, 0,
 329                                 param, 4, 0,
 330                                 (char *)in->data, in->length, CLI_BUFFER_SIZE)) {
 331                 status = cli_nt_error(cli);
 332                 goto out;
 333         }
 334
 335         if (!cli_receive_trans(cli, SMBtrans2,
 336                                 &rparam, &rparam_count,
 337                                 &rdata, &rdata_count)) {
 338                 status = cli_nt_error(cli);
 339                 goto out;
 340         }
 341
 342         if (cli_is_error(cli)) {
 343                 status = cli_nt_error(cli);
 344                 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 345                         goto out;
 346                 }
 347         }
 348
 349         *out = data_blob(rdata, rdata_count);
 350         *param_out = data_blob(rparam, rparam_count);
 351
 352   out:
 353
 354         SAFE_FREE(rparam);
 355         SAFE_FREE(rdata);
 356         return status;
 357 }
 358
 359 /******************************************************************************
 360  Make a client state struct.
 361 ******************************************************************************/
 362
 363 static struct smb_trans_enc_state *make_cli_enc_state(enum smb_trans_enc_type smb_enc_type)
 364 {
 365         struct smb_trans_enc_state *es = NULL;
 366         es = SMB_MALLOC_P(struct smb_trans_enc_state);
 367         if (!es) {
 368                 return NULL;
 369         }
 370         ZERO_STRUCTP(es);
 371         es->smb_enc_type = smb_enc_type;
 372
 373 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
 374         if (smb_enc_type == SMB_TRANS_ENC_GSS) {
 375                 es->s.gss_state = SMB_MALLOC_P(struct smb_tran_enc_state_gss);
 376                 if (!es->s.gss_state) {
 377                         SAFE_FREE(es);
 378                         return NULL;
 379                 }
 380                 ZERO_STRUCTP(es->s.gss_state);
 381         }
 382 #endif
 383         return es;
 384 }
 385
 386 /******************************************************************************
 387  Start a raw ntlmssp encryption.
 388 ******************************************************************************/
 389
 390 NTSTATUS cli_raw_ntlm_smb_encryption_start(struct cli_state *cli,
 391                                 const char *user,
 392                                 const char *pass,
 393                                 const char *domain)
 394 {
 395         DATA_BLOB blob_in = data_blob_null;
 396         DATA_BLOB blob_out = data_blob_null;
 397         DATA_BLOB param_out = data_blob_null;
 398         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 399         struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_NTLM);
 400
 401         if (!es) {
 402                 return NT_STATUS_NO_MEMORY;
 403         }
 404         status = ntlmssp_client_start(&es->s.ntlmssp_state);
 405         if (!NT_STATUS_IS_OK(status)) {
 406                 goto fail;
 407         }
 408
 409         ntlmssp_want_feature(es->s.ntlmssp_state, NTLMSSP_FEATURE_SESSION_KEY);
 410         es->s.ntlmssp_state->neg_flags |= (NTLMSSP_NEGOTIATE_SIGN|NTLMSSP_NEGOTIATE_SEAL);
 411
 412         if (!NT_STATUS_IS_OK(status = ntlmssp_set_username(es->s.ntlmssp_state, user))) {
 413                 goto fail;
 414         }
 415         if (!NT_STATUS_IS_OK(status = ntlmssp_set_domain(es->s.ntlmssp_state, domain))) {
 416                 goto fail;
 417         }
 418         if (!NT_STATUS_IS_OK(status = ntlmssp_set_password(es->s.ntlmssp_state, pass))) {
 419                 goto fail;
 420         }
 421
 422         do {
 423                 status = ntlmssp_update(es->s.ntlmssp_state, blob_in, &blob_out);
 424                 data_blob_free(&blob_in);
 425                 data_blob_free(&param_out);
 426                 if (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) || NT_STATUS_IS_OK(status)) {
 427                         NTSTATUS trans_status = enc_blob_send_receive(cli,
 428                                                                         &blob_out,
 429                                                                         &blob_in,
 430                                                                         &param_out);
 431                         if (!NT_STATUS_EQUAL(trans_status,
 432                                         NT_STATUS_MORE_PROCESSING_REQUIRED) &&
 433                                         !NT_STATUS_IS_OK(trans_status)) {
 434                                 status = trans_status;
 435                         } else {
 436                                 if (param_out.length == 2) {
 437                                         es->enc_ctx_num = SVAL(param_out.data, 0);
 438                                 }
 439                         }
 440                 }
 441                 data_blob_free(&blob_out);
 442         } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
 443
 444         data_blob_free(&blob_in);
 445
 446         if (NT_STATUS_IS_OK(status)) {
 447                 /* Replace the old state, if any. */
 448                 if (cli->trans_enc_state) {
 449                         common_free_encryption_state(&cli->trans_enc_state);
 450                 }
 451                 cli->trans_enc_state = es;
 452                 cli->trans_enc_state->enc_on = True;
 453                 es = NULL;
 454         }
 455
 456   fail:
 457
 458         common_free_encryption_state(&es);
 459         return status;
 460 }
 461
 462 #if defined(HAVE_GSSAPI) && defined(HAVE_KRB5)
 463
 464 #ifndef SMB_GSS_REQUIRED_FLAGS
 465 #define SMB_GSS_REQUIRED_FLAGS (GSS_C_CONF_FLAG|GSS_C_INTEG_FLAG|GSS_C_MUTUAL_FLAG|GSS_C_REPLAY_FLAG|GSS_C_SEQUENCE_FLAG)
 466 #endif
 467
 468 /******************************************************************************
 469  Get client gss blob to send to a server.
 470 ******************************************************************************/
 471
 472 static NTSTATUS make_cli_gss_blob(struct smb_trans_enc_state *es,
 473                                 const char *service,
 474                                 const char *host,
 475                                 NTSTATUS status_in,
 476                                 DATA_BLOB spnego_blob_in,
 477                                 DATA_BLOB *p_blob_out)
 478 {
 479         const char *krb_mechs[] = {OID_KERBEROS5, NULL};
 480         OM_uint32 ret;
 481         OM_uint32 min;
 482         gss_name_t srv_name;
 483         gss_buffer_desc input_name;
 484         gss_buffer_desc *p_tok_in;
 485         gss_buffer_desc tok_out, tok_in;
 486         DATA_BLOB blob_out = data_blob_null;
 487         DATA_BLOB blob_in = data_blob_null;
 488         char *host_princ_s = NULL;
 489         OM_uint32 ret_flags = 0;
 490         NTSTATUS status = NT_STATUS_OK;
 491
 492         gss_OID_desc nt_hostbased_service =
 493         {10, CONST_DISCARD(char *,"\x2a\x86\x48\x86\xf7\x12\x01\x02\x01\x04")};
 494
 495         memset(&tok_out, '\0', sizeof(tok_out));
 496
 497         /* Get a ticket for the service@host */
 498         if (asprintf(&host_princ_s, "%s@%s", service, host) == -1) {
 499                 return NT_STATUS_NO_MEMORY;
 500         }
 501
 502         input_name.value = host_princ_s;
 503         input_name.length = strlen(host_princ_s) + 1;
 504
 505         ret = gss_import_name(&min,
 506                                 &input_name,
 507                                 &nt_hostbased_service,
 508                                 &srv_name);
 509
 510         if (ret != GSS_S_COMPLETE) {
 511                 SAFE_FREE(host_princ_s);
 512                 return map_nt_error_from_gss(ret, min);
 513         }
 514
 515         if (spnego_blob_in.length == 0) {
 516                 p_tok_in = GSS_C_NO_BUFFER;
 517         } else {
 518                 /* Remove the SPNEGO wrapper */
 519                 if (!spnego_parse_auth_response(spnego_blob_in, status_in, OID_KERBEROS5, &blob_in)) {
 520                         status = NT_STATUS_UNSUCCESSFUL;
 521                         goto fail;
 522                 }
 523                 tok_in.value = blob_in.data;
 524                 tok_in.length = blob_in.length;
 525                 p_tok_in = &tok_in;
 526         }
 527
 528         ret = gss_init_sec_context(&min,
 529                                 GSS_C_NO_CREDENTIAL, /* Use our default cred. */
 530                                 &es->s.gss_state->gss_ctx,
 531                                 srv_name,
 532                                 GSS_C_NO_OID, /* default OID. */
 533                                 GSS_C_MUTUAL_FLAG | GSS_C_REPLAY_FLAG | GSS_C_SEQUENCE_FLAG | GSS_C_DELEG_FLAG,
 534                                 GSS_C_INDEFINITE,       /* requested ticket lifetime. */
 535                                 NULL,   /* no channel bindings */
 536                                 p_tok_in,
 537                                 NULL,   /* ignore mech type */
 538                                 &tok_out,
 539                                 &ret_flags,
 540                                 NULL);  /* ignore time_rec */
 541
 542         status = map_nt_error_from_gss(ret, min);
 543         if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 544                 ADS_STATUS adss = ADS_ERROR_GSS(ret, min);
 545                 DEBUG(10,("make_cli_gss_blob: gss_init_sec_context failed with %s\n",
 546                         ads_errstr(adss)));
 547                 goto fail;
 548         }
 549
 550         if ((ret_flags & SMB_GSS_REQUIRED_FLAGS) != SMB_GSS_REQUIRED_FLAGS) {
 551                 status = NT_STATUS_ACCESS_DENIED;
 552         }
 553
 554         blob_out = data_blob(tok_out.value, tok_out.length);
 555
 556         /* Wrap in an SPNEGO wrapper */
 557         *p_blob_out = gen_negTokenTarg(krb_mechs, blob_out);
 558
 559   fail:
 560
 561         data_blob_free(&blob_out);
 562         data_blob_free(&blob_in);
 563         SAFE_FREE(host_princ_s);
 564         gss_release_name(&min, &srv_name);
 565         if (tok_out.value) {
 566                 gss_release_buffer(&min, &tok_out);
 567         }
 568         return status;
 569 }
 570
 571 /******************************************************************************
 572  Start a SPNEGO gssapi encryption context.
 573 ******************************************************************************/
 574
 575 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
 576 {
 577         DATA_BLOB blob_recv = data_blob_null;
 578         DATA_BLOB blob_send = data_blob_null;
 579         DATA_BLOB param_out = data_blob_null;
 580         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
 581         fstring fqdn;
 582         const char *servicename;
 583         struct smb_trans_enc_state *es = make_cli_enc_state(SMB_TRANS_ENC_GSS);
 584
 585         if (!es) {
 586                 return NT_STATUS_NO_MEMORY;
 587         }
 588
 589         name_to_fqdn(fqdn, cli->desthost);
 590         strlower_m(fqdn);
 591
 592         servicename = "cifs";
 593         status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
 594         if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 595                 servicename = "host";
 596                 status = make_cli_gss_blob(es, servicename, fqdn, NT_STATUS_OK, blob_recv, &blob_send);
 597                 if (!NT_STATUS_EQUAL(status,NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 598                         goto fail;
 599                 }
 600         }
 601
 602         do {
 603                 data_blob_free(&blob_recv);
 604                 status = enc_blob_send_receive(cli, &blob_send, &blob_recv, &param_out);
 605                 if (param_out.length == 2) {
 606                         es->enc_ctx_num = SVAL(param_out.data, 0);
 607                 }
 608                 data_blob_free(&blob_send);
 609                 status = make_cli_gss_blob(es, servicename, fqdn, status, blob_recv, &blob_send);
 610         } while (NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED));
 611         data_blob_free(&blob_recv);
 612
 613         if (NT_STATUS_IS_OK(status)) {
 614                 /* Replace the old state, if any. */
 615                 if (cli->trans_enc_state) {
 616                         common_free_encryption_state(&cli->trans_enc_state);
 617                 }
 618                 cli->trans_enc_state = es;
 619                 cli->trans_enc_state->enc_on = True;
 620                 es = NULL;
 621         }
 622
 623   fail:
 624
 625         common_free_encryption_state(&es);
 626         return status;
 627 }
 628 #else
 629 NTSTATUS cli_gss_smb_encryption_start(struct cli_state *cli)
 630 {
 631         return NT_STATUS_NOT_SUPPORTED;
 632 }
 633 #endif
 634
 635 /********************************************************************
 636  Ensure a connection is encrypted.
 637 ********************************************************************/
 638
 639 NTSTATUS cli_force_encryption(struct cli_state *c,
 640                         const char *username,
 641                         const char *password,
 642                         const char *domain)
 643 {
 644         uint16 major, minor;
 645         uint32 caplow, caphigh;
 646
 647         if (!SERVER_HAS_UNIX_CIFS(c)) {
 648                 return NT_STATUS_NOT_SUPPORTED;
 649         }
 650
 651         if (!cli_unix_extensions_version(c, &major, &minor, &caplow, &caphigh)) {
 652                 return NT_STATUS_UNKNOWN_REVISION;
 653         }
 654
 655         if (!(caplow & CIFS_UNIX_TRANSPORT_ENCRYPTION_CAP)) {
 656                 return NT_STATUS_UNSUPPORTED_COMPRESSION;
 657         }
 658
 659         if (c->use_kerberos) {
 660                 return cli_gss_smb_encryption_start(c);
 661         }
 662         return cli_raw_ntlm_smb_encryption_start(c,
 663                                         username,
 664                                         password,
 665                                         domain);
 666 }