source3/utils/ntlm_auth.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind status program.
   5
   6    Copyright (C) Tim Potter      2000-2002
   7    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003
   8    Copyright (C) Francesco Chemolli <kinkie@kame.usr.dsi.unimi.it> 2000
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 */
  24
  25 #include "includes.h"
  26
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_WINBIND
  29
  30 #define SQUID_BUFFER_SIZE 2010
  31
  32 enum squid_mode {
  33         SQUID_2_4_BASIC,
  34         SQUID_2_5_BASIC,
  35         SQUID_2_5_NTLMSSP
  36 };
  37
  38
  39 extern int winbindd_fd;
  40
  41 static const char *opt_username;
  42 static const char *opt_domain;
  43 static const char *opt_workstation;
  44 static const char *opt_password;
  45 static DATA_BLOB opt_challenge;
  46 static DATA_BLOB opt_lm_response;
  47 static DATA_BLOB opt_nt_response;
  48 static int request_lm_key;
  49 static int request_nt_key;
  50
  51
  52 static char winbind_separator(void)
  53 {
  54         struct winbindd_response response;
  55         static BOOL got_sep;
  56         static char sep;
  57
  58         if (got_sep)
  59                 return sep;
  60
  61         ZERO_STRUCT(response);
  62
  63         /* Send off request */
  64
  65         if (winbindd_request(WINBINDD_INFO, NULL, &response) !=
  66             NSS_STATUS_SUCCESS) {
  67                 d_printf("could not obtain winbind separator!\n");
  68                 return '\\';
  69         }
  70
  71         sep = response.data.info.winbind_separator;
  72         got_sep = True;
  73
  74         if (!sep) {
  75                 d_printf("winbind separator was NULL!\n");
  76                 return '\\';
  77         }
  78
  79         return sep;
  80 }
  81
  82 static const char *get_winbind_domain(void)
  83 {
  84         struct winbindd_response response;
  85
  86         static fstring winbind_domain;
  87         if (*winbind_domain) {
  88                 return winbind_domain;
  89         }
  90
  91         ZERO_STRUCT(response);
  92
  93         /* Send off request */
  94
  95         if (winbindd_request(WINBINDD_DOMAIN_NAME, NULL, &response) !=
  96             NSS_STATUS_SUCCESS) {
  97                 d_printf("could not obtain winbind domain name!\n");
  98                 return NULL;
  99         }
 100
 101         fstrcpy(winbind_domain, response.data.domain_name);
 102
 103         return winbind_domain;
 104
 105 }
 106
 107 static const char *get_winbind_netbios_name(void)
 108 {
 109         struct winbindd_response response;
 110
 111         static fstring winbind_netbios_name;
 112
 113         if (*winbind_netbios_name) {
 114                 return winbind_netbios_name;
 115         }
 116
 117         ZERO_STRUCT(response);
 118
 119         /* Send off request */
 120
 121         if (winbindd_request(WINBINDD_NETBIOS_NAME, NULL, &response) !=
 122             NSS_STATUS_SUCCESS) {
 123                 d_printf("could not obtain winbind netbios name!\n");
 124                 return NULL;
 125         }
 126
 127         fstrcpy(winbind_netbios_name, response.data.netbios_name);
 128
 129         return winbind_netbios_name;
 130
 131 }
 132
 133 /* Authenticate a user with a plaintext password */
 134
 135 static BOOL check_plaintext_auth(const char *user, const char *pass, BOOL stdout_diagnostics)
 136 {
 137         struct winbindd_request request;
 138         struct winbindd_response response;
 139         NSS_STATUS result;
 140
 141         /* Send off request */
 142
 143         ZERO_STRUCT(request);
 144         ZERO_STRUCT(response);
 145
 146         fstrcpy(request.data.auth.user, user);
 147         fstrcpy(request.data.auth.pass, pass);
 148
 149         result = winbindd_request(WINBINDD_PAM_AUTH, &request, &response);
 150
 151         /* Display response */
 152
 153         if (stdout_diagnostics) {
 154                 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 155                         d_printf("Reading winbind reply failed! (0x01)\n");
 156                 }
 157
 158                 d_printf("%s: %s (0x%x)\n",
 159                          response.data.auth.nt_status_string,
 160                          response.data.auth.error_string,
 161                          response.data.auth.nt_status);
 162         } else {
 163                 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 164                         DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
 165                 }
 166
 167                 DEBUG(3, ("%s: %s (0x%x)\n",
 168                           response.data.auth.nt_status_string,
 169                           response.data.auth.error_string,
 170                           response.data.auth.nt_status));
 171         }
 172
 173         return (result == NSS_STATUS_SUCCESS);
 174 }
 175
 176 /* authenticate a user with an encrypted username/password */
 177
 178 static NTSTATUS contact_winbind_auth_crap(const char *username,
 179                                           const char *domain,
 180                                           const char *workstation,
 181                                           const DATA_BLOB *challenge,
 182                                           const DATA_BLOB *lm_response,
 183                                           const DATA_BLOB *nt_response,
 184                                           uint32 flags,
 185                                           uint8 lm_key[8],
 186                                           uint8 nt_key[16],
 187                                           char **error_string)
 188 {
 189         NTSTATUS nt_status;
 190         NSS_STATUS result;
 191         struct winbindd_request request;
 192         struct winbindd_response response;
 193
 194         static uint8 zeros[16];
 195
 196         ZERO_STRUCT(request);
 197         ZERO_STRUCT(response);
 198
 199         request.data.auth_crap.flags = flags;
 200
 201         fstrcpy(request.data.auth_crap.user, username);
 202
 203         fstrcpy(request.data.auth_crap.domain, domain);
 204         fstrcpy(request.data.auth_crap.workstation, workstation);
 205
 206         memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
 207
 208         if (lm_response && lm_response->length) {
 209                 memcpy(request.data.auth_crap.lm_resp, lm_response->data, MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
 210                 request.data.auth_crap.lm_resp_len = lm_response->length;
 211         }
 212
 213         if (nt_response && nt_response->length) {
 214                 memcpy(request.data.auth_crap.nt_resp, nt_response->data, MIN(nt_response->length, sizeof(request.data.auth_crap.nt_resp)));
 215                 request.data.auth_crap.nt_resp_len = nt_response->length;
 216         }
 217
 218         result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response);
 219
 220         /* Display response */
 221
 222         if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 223                 nt_status = NT_STATUS_UNSUCCESSFUL;
 224                 if (error_string)
 225                         *error_string = smb_xstrdup("Reading winbind reply failed!");
 226                 return nt_status;
 227         }
 228
 229         nt_status = (NT_STATUS(response.data.auth.nt_status));
 230         if (!NT_STATUS_IS_OK(nt_status)) {
 231                 if (error_string)
 232                         *error_string = smb_xstrdup(response.data.auth.error_string);
 233                 return nt_status;
 234         }
 235
 236         if ((flags & WINBIND_PAM_LMKEY) && lm_key
 237             && (memcmp(zeros, response.data.auth.first_8_lm_hash,
 238                        sizeof(response.data.auth.first_8_lm_hash)) != 0)) {
 239                 memcpy(lm_key, response.data.auth.first_8_lm_hash,
 240                         sizeof(response.data.auth.first_8_lm_hash));
 241         }
 242         if ((flags & WINBIND_PAM_NTKEY) && nt_key
 243                     && (memcmp(zeros, response.data.auth.nt_session_key,
 244                                sizeof(response.data.auth.nt_session_key)) != 0)) {
 245                 memcpy(nt_key, response.data.auth.nt_session_key,
 246                         sizeof(response.data.auth.nt_session_key));
 247         }
 248         return nt_status;
 249 }
 250
 251 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state)
 252 {
 253         return contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
 254                                          ntlmssp_state->workstation,
 255                                          &ntlmssp_state->chal,
 256                                          &ntlmssp_state->lm_resp,
 257                                          &ntlmssp_state->nt_resp,
 258                                          0,
 259                                          NULL,
 260                                          NULL,
 261                                          NULL);
 262 }
 263
 264 static void manage_squid_ntlmssp_request(enum squid_mode squid_mode,
 265                                          char *buf, int length)
 266 {
 267         static NTLMSSP_STATE *ntlmssp_state = NULL;
 268         DATA_BLOB request, reply;
 269         NTSTATUS nt_status;
 270
 271         if (strlen(buf) < 2) {
 272                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 273                 x_fprintf(x_stdout, "BH\n");
 274                 return;
 275         }
 276
 277         if (strlen(buf) > 3) {
 278                 request = base64_decode_data_blob(buf + 3);
 279         } else if (strcmp(buf, "YR") == 0) {
 280                 request = data_blob(NULL, 0);
 281                 if (ntlmssp_state)
 282                         ntlmssp_server_end(&ntlmssp_state);
 283         } else {
 284                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 285                 x_fprintf(x_stdout, "BH\n");
 286                 return;
 287         }
 288
 289         if (!ntlmssp_state) {
 290                 ntlmssp_server_start(&ntlmssp_state);
 291                 ntlmssp_state->check_password = winbind_pw_check;
 292                 ntlmssp_state->get_domain = get_winbind_domain;
 293                 ntlmssp_state->get_global_myname = get_winbind_netbios_name;
 294         }
 295
 296         DEBUG(10, ("got NTLMSSP packet:\n"));
 297         dump_data(10, request.data, request.length);
 298
 299         nt_status = ntlmssp_server_update(ntlmssp_state, request, &reply);
 300
 301         if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 302                 char *reply_base64 = base64_encode_data_blob(reply);
 303                 x_fprintf(x_stdout, "TT %s\n", reply_base64);
 304                 SAFE_FREE(reply_base64);
 305                 data_blob_free(&reply);
 306                 DEBUG(10, ("NTLMSSP challenge\n"));
 307         } else if (!NT_STATUS_IS_OK(nt_status)) {
 308                 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
 309                 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
 310         } else {
 311                 x_fprintf(x_stdout, "AF %s\\%s\n", ntlmssp_state->domain, ntlmssp_state->user);
 312                 DEBUG(10, ("NTLMSSP OK!\n"));
 313         }
 314
 315         data_blob_free(&request);
 316 }
 317
 318 static void manage_squid_basic_request(enum squid_mode squid_mode,
 319                                        char *buf, int length)
 320 {
 321         char *user, *pass;
 322         user=buf;
 323
 324         pass=memchr(buf,' ',length);
 325         if (!pass) {
 326                 DEBUG(2, ("Password not found. Denying access\n"));
 327                 x_fprintf(x_stderr, "ERR\n");
 328                 return;
 329         }
 330         *pass='\0';
 331         pass++;
 332
 333         if (squid_mode == SQUID_2_5_BASIC) {
 334                 rfc1738_unescape(user);
 335                 rfc1738_unescape(pass);
 336         }
 337
 338         if (check_plaintext_auth(user, pass, False)) {
 339                 x_fprintf(x_stdout, "OK\n");
 340         } else {
 341                 x_fprintf(x_stdout, "ERR\n");
 342         }
 343 }
 344
 345 static void manage_squid_request(enum squid_mode squid_mode)
 346 {
 347         char buf[SQUID_BUFFER_SIZE+1];
 348         int length;
 349         char *c;
 350         static BOOL err;
 351
 352         /* this is not a typo - x_fgets doesn't work too well under squid */
 353         if (fgets(buf, sizeof(buf)-1, stdin) == NULL) {
 354                 DEBUG(1, ("fgets() failed! dying..... errno=%d (%s)\n", ferror(stdin),
 355                           strerror(ferror(stdin))));
 356                 exit(1);    /* BIIG buffer */
 357         }
 358
 359         c=memchr(buf,'\n',sizeof(buf)-1);
 360         if (c) {
 361                 *c = '\0';
 362                 length = c-buf;
 363         } else {
 364                 err = 1;
 365                 return;
 366         }
 367         if (err) {
 368                 DEBUG(2, ("Oversized message\n"));
 369                 x_fprintf(x_stderr, "ERR\n");
 370                 err = 0;
 371                 return;
 372         }
 373
 374         DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
 375
 376         if (buf[0] == '\0') {
 377                 DEBUG(2, ("Invalid Request\n"));
 378                 x_fprintf(x_stderr, "ERR\n");
 379                 return;
 380         }
 381
 382         if (squid_mode == SQUID_2_5_BASIC || squid_mode == SQUID_2_4_BASIC) {
 383                 manage_squid_basic_request(squid_mode, buf, length);
 384         } else if (squid_mode == SQUID_2_5_NTLMSSP) {
 385                 manage_squid_ntlmssp_request(squid_mode, buf, length);
 386         }
 387 }
 388
 389
 390 static void squid_stream(enum squid_mode squid_mode) {
 391         /* initialize FDescs */
 392         x_setbuf(x_stdout, NULL);
 393         x_setbuf(x_stderr, NULL);
 394         while(1) {
 395                 manage_squid_request(squid_mode);
 396         }
 397 }
 398
 399
 400 /* Authenticate a user with a challenge/response */
 401
 402 static BOOL check_auth_crap(void)
 403 {
 404         NTSTATUS nt_status;
 405         uint32 flags = 0;
 406         char lm_key[8];
 407         char nt_key[16];
 408         char *hex_lm_key;
 409         char *hex_nt_key;
 410         char *error_string;
 411
 412         static uint8 zeros[16];
 413
 414         if (request_lm_key)
 415                 flags |= WINBIND_PAM_LMKEY;
 416
 417         if (request_nt_key)
 418                 flags |= WINBIND_PAM_NTKEY;
 419
 420         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 421                                               opt_workstation,
 422                                               &opt_challenge,
 423                                               &opt_lm_response,
 424                                               &opt_nt_response,
 425                                               flags,
 426                                               lm_key,
 427                                               nt_key,
 428                                               &error_string);
 429
 430         if (!NT_STATUS_IS_OK(nt_status)) {
 431                 d_printf("%s (0x%x)\n",
 432                          error_string,
 433                          NT_STATUS_V(nt_status));
 434                 SAFE_FREE(error_string);
 435                 return False;
 436         }
 437
 438         if (request_lm_key
 439             && (memcmp(zeros, lm_key,
 440                        sizeof(lm_key)) != 0)) {
 441                 hex_encode(lm_key,
 442                            sizeof(lm_key),
 443                            &hex_lm_key);
 444                 d_printf("LM_KEY: %s\n", hex_lm_key);
 445                 SAFE_FREE(hex_lm_key);
 446         }
 447         if (request_nt_key
 448             && (memcmp(zeros, nt_key,
 449                        sizeof(nt_key)) != 0)) {
 450                 hex_encode(nt_key,
 451                            sizeof(nt_key),
 452                            &hex_nt_key);
 453                 d_printf("NT_KEY: %s\n", hex_nt_key);
 454                 SAFE_FREE(hex_nt_key);
 455         }
 456
 457         return True;
 458 }
 459
 460 /*
 461    Authenticate a user with a challenge/response, checking session key
 462    and valid authentication types
 463 */
 464
 465 static DATA_BLOB get_challenge(void)
 466 {
 467         static DATA_BLOB chal;
 468         if (opt_challenge.length)
 469                 return opt_challenge;
 470
 471         chal = data_blob(NULL, 8);
 472
 473         generate_random_buffer(chal.data, chal.length, False);
 474         return chal;
 475 }
 476
 477 /*
 478  * Test LM authentication, no NT response supplied
 479  */
 480
 481 static BOOL test_lm(void)
 482 {
 483         NTSTATUS nt_status;
 484         uint32 flags = 0;
 485         DATA_BLOB lm_response = data_blob(NULL, 24);
 486
 487         uchar lm_key[8];
 488         uchar nt_key[16];
 489         uchar lm_hash[16];
 490         DATA_BLOB chall = get_challenge();
 491         char *error_string;
 492
 493         ZERO_STRUCT(lm_key);
 494         ZERO_STRUCT(nt_key);
 495
 496         flags |= WINBIND_PAM_LMKEY;
 497         flags |= WINBIND_PAM_NTKEY;
 498
 499         SMBencrypt(opt_password, chall.data, lm_response.data);
 500         E_deshash(opt_password, lm_hash);
 501
 502         nt_status = contact_winbind_auth_crap(opt_username, opt_domain, opt_workstation,
 503                                               &chall,
 504                                               &lm_response,
 505                                               NULL,
 506                                               flags,
 507                                               lm_key,
 508                                               nt_key,
 509                                               &error_string);
 510
 511         data_blob_free(&lm_response);
 512
 513         if (!NT_STATUS_IS_OK(nt_status)) {
 514                 d_printf("%s (0x%x)\n",
 515                          error_string,
 516                          NT_STATUS_V(nt_status));
 517                 return False;
 518         }
 519
 520         if (memcmp(lm_hash, lm_key,
 521                    sizeof(lm_key)) != 0) {
 522                 DEBUG(1, ("LM Key does not match expectations!\n"));
 523                 DEBUG(1, ("lm_key:\n"));
 524                 dump_data(1, lm_key, 8);
 525                 DEBUG(1, ("expected:\n"));
 526                 dump_data(1, lm_hash, 8);
 527         }
 528         if (memcmp(lm_hash, nt_key, 8) != 0) {
 529                 DEBUG(1, ("Session Key (first 8, lm hash) does not match expectations!\n"));
 530                 DEBUG(1, ("nt_key:\n"));
 531                 dump_data(1, nt_key, 8);
 532                 DEBUG(1, ("expected:\n"));
 533                 dump_data(1, lm_hash, 8);
 534         }
 535         return True;
 536 }
 537
 538 /*
 539  * Test the normal 'LM and NTLM' combination
 540  */
 541
 542 static BOOL test_lm_ntlm(void)
 543 {
 544         BOOL pass = True;
 545         NTSTATUS nt_status;
 546         uint32 flags = 0;
 547         DATA_BLOB lm_response = data_blob(NULL, 24);
 548         DATA_BLOB nt_response = data_blob(NULL, 24);
 549         DATA_BLOB session_key = data_blob(NULL, 16);
 550
 551         uchar lm_key[8];
 552         uchar nt_key[16];
 553         uchar lm_hash[16];
 554         uchar nt_hash[16];
 555         DATA_BLOB chall = get_challenge();
 556         char *error_string;
 557
 558         ZERO_STRUCT(lm_key);
 559         ZERO_STRUCT(nt_key);
 560
 561         flags |= WINBIND_PAM_LMKEY;
 562         flags |= WINBIND_PAM_NTKEY;
 563
 564         SMBencrypt(opt_password,chall.data,lm_response.data);
 565         E_deshash(opt_password, lm_hash);
 566
 567         SMBNTencrypt(opt_password,chall.data,nt_response.data);
 568
 569         E_md4hash(opt_password, nt_hash);
 570         SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
 571
 572         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 573                                               opt_workstation,
 574                                               &chall,
 575                                               &lm_response,
 576                                               &nt_response,
 577                                               flags,
 578                                               lm_key,
 579                                               nt_key,
 580                                               &error_string);
 581
 582         data_blob_free(&lm_response);
 583
 584         if (!NT_STATUS_IS_OK(nt_status)) {
 585                 d_printf("%s (0x%x)\n",
 586                          error_string,
 587                          NT_STATUS_V(nt_status));
 588                 SAFE_FREE(error_string);
 589                 return False;
 590         }
 591
 592         if (memcmp(lm_hash, lm_key,
 593                    sizeof(lm_key)) != 0) {
 594                 DEBUG(1, ("LM Key does not match expectations!\n"));
 595                 DEBUG(1, ("lm_key:\n"));
 596                 dump_data(1, lm_key, 8);
 597                 DEBUG(1, ("expected:\n"));
 598                 dump_data(1, lm_hash, 8);
 599                 pass = False;
 600         }
 601         if (memcmp(session_key.data, nt_key,
 602                    sizeof(nt_key)) != 0) {
 603                 DEBUG(1, ("NT Session Key does not match expectations!\n"));
 604                 DEBUG(1, ("nt_key:\n"));
 605                 dump_data(1, nt_key, 16);
 606                 DEBUG(1, ("expected:\n"));
 607                 dump_data(1, session_key.data, session_key.length);
 608                 pass = False;
 609         }
 610         return pass;
 611 }
 612
 613 /*
 614  * Test the NTLM response only, no LM.
 615  */
 616
 617 static BOOL test_ntlm(void)
 618 {
 619         BOOL pass = True;
 620         NTSTATUS nt_status;
 621         uint32 flags = 0;
 622         DATA_BLOB nt_response = data_blob(NULL, 24);
 623         DATA_BLOB session_key = data_blob(NULL, 16);
 624
 625         char lm_key[8];
 626         char nt_key[16];
 627         char lm_hash[16];
 628         char nt_hash[16];
 629         DATA_BLOB chall = get_challenge();
 630         char *error_string;
 631
 632         ZERO_STRUCT(lm_key);
 633         ZERO_STRUCT(nt_key);
 634
 635         flags |= WINBIND_PAM_LMKEY;
 636         flags |= WINBIND_PAM_NTKEY;
 637
 638         SMBNTencrypt(opt_password,chall.data,nt_response.data);
 639         E_md4hash(opt_password, nt_hash);
 640         SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
 641
 642         E_deshash(opt_password, lm_hash);
 643
 644         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 645                                               opt_workstation,
 646                                               &chall,
 647                                               NULL,
 648                                               &nt_response,
 649                                               flags,
 650                                               lm_key,
 651                                               nt_key,
 652                                               &error_string);
 653
 654         data_blob_free(&nt_response);
 655
 656         if (!NT_STATUS_IS_OK(nt_status)) {
 657                 d_printf("%s (0x%x)\n",
 658                          error_string,
 659                          NT_STATUS_V(nt_status));
 660                 SAFE_FREE(error_string);
 661                 return False;
 662         }
 663
 664         if (memcmp(lm_hash, lm_key,
 665                    sizeof(lm_key)) != 0) {
 666                 DEBUG(1, ("LM Key does not match expectations!\n"));
 667                 DEBUG(1, ("lm_key:\n"));
 668                 dump_data(1, lm_key, 8);
 669                 DEBUG(1, ("expected:\n"));
 670                 dump_data(1, lm_hash, 8);
 671                 pass = False;
 672         }
 673         if (memcmp(session_key.data, nt_key,
 674                    sizeof(nt_key)) != 0) {
 675                 DEBUG(1, ("NT Session Key does not match expectations!\n"));
 676                 DEBUG(1, ("nt_key:\n"));
 677                 dump_data(1, nt_key, 16);
 678                 DEBUG(1, ("expected:\n"));
 679                 dump_data(1, session_key.data, session_key.length);
 680                 pass = False;
 681         }
 682         return pass;
 683 }
 684
 685 /*
 686  * Test the NTLM response only, but in the LM field.
 687  */
 688
 689 static BOOL test_ntlm_in_lm(void)
 690 {
 691         BOOL pass = True;
 692         NTSTATUS nt_status;
 693         uint32 flags = 0;
 694         DATA_BLOB nt_response = data_blob(NULL, 24);
 695
 696         uchar lm_key[8];
 697         uchar lm_hash[16];
 698         uchar nt_key[16];
 699         DATA_BLOB chall = get_challenge();
 700         char *error_string;
 701
 702         ZERO_STRUCT(nt_key);
 703
 704         flags |= WINBIND_PAM_LMKEY;
 705         flags |= WINBIND_PAM_NTKEY;
 706
 707         SMBNTencrypt(opt_password,chall.data,nt_response.data);
 708
 709         E_deshash(opt_password, lm_hash);
 710
 711         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 712                                               opt_workstation,
 713                                               &chall,
 714                                               &nt_response,
 715                                               NULL,
 716                                               flags,
 717                                               lm_key,
 718                                               nt_key,
 719                                               &error_string);
 720
 721         data_blob_free(&nt_response);
 722
 723         if (!NT_STATUS_IS_OK(nt_status)) {
 724                 d_printf("%s (0x%x)\n",
 725                          error_string,
 726                          NT_STATUS_V(nt_status));
 727                 SAFE_FREE(error_string);
 728                 return False;
 729         }
 730
 731         if (memcmp(lm_hash, lm_key,
 732                    sizeof(lm_key)) != 0) {
 733                 DEBUG(1, ("LM Key does not match expectations!\n"));
 734                 DEBUG(1, ("lm_key:\n"));
 735                 dump_data(1, lm_key, 8);
 736                 DEBUG(1, ("expected:\n"));
 737                 dump_data(1, lm_hash, 8);
 738                 pass = False;
 739         }
 740         if (memcmp(lm_hash, nt_key, 8) != 0) {
 741                 DEBUG(1, ("Session Key (first 8 lm hash) does not match expectations!\n"));
 742                 DEBUG(1, ("nt_key:\n"));
 743                 dump_data(1, nt_key, 16);
 744                 DEBUG(1, ("expected:\n"));
 745                 dump_data(1, lm_hash, 8);
 746                 pass = False;
 747         }
 748         return pass;
 749 }
 750
 751 /*
 752  * Test the NTLM response only, but in the both the NT and LM fields.
 753  */
 754
 755 static BOOL test_ntlm_in_both(void)
 756 {
 757         BOOL pass = True;
 758         NTSTATUS nt_status;
 759         uint32 flags = 0;
 760         DATA_BLOB nt_response = data_blob(NULL, 24);
 761         DATA_BLOB session_key = data_blob(NULL, 16);
 762
 763         char lm_key[8];
 764         char lm_hash[16];
 765         char nt_key[16];
 766         char nt_hash[16];
 767         DATA_BLOB chall = get_challenge();
 768         char *error_string;
 769
 770         ZERO_STRUCT(lm_key);
 771         ZERO_STRUCT(nt_key);
 772
 773         flags |= WINBIND_PAM_LMKEY;
 774         flags |= WINBIND_PAM_NTKEY;
 775
 776         SMBNTencrypt(opt_password,chall.data,nt_response.data);
 777         E_md4hash(opt_password, nt_hash);
 778         SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
 779
 780         E_deshash(opt_password, lm_hash);
 781
 782         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 783                                               opt_workstation,
 784                                               &chall,
 785                                               &nt_response,
 786                                               &nt_response,
 787                                               flags,
 788                                               lm_key,
 789                                               nt_key,
 790                                               &error_string);
 791
 792         data_blob_free(&nt_response);
 793
 794         if (!NT_STATUS_IS_OK(nt_status)) {
 795                 d_printf("%s (0x%x)\n",
 796                          error_string,
 797                          NT_STATUS_V(nt_status));
 798                 SAFE_FREE(error_string);
 799                 return False;
 800         }
 801
 802         if (memcmp(lm_hash, lm_key,
 803                    sizeof(lm_key)) != 0) {
 804                 DEBUG(1, ("LM Key does not match expectations!\n"));
 805                 DEBUG(1, ("lm_key:\n"));
 806                 dump_data(1, lm_key, 8);
 807                 DEBUG(1, ("expected:\n"));
 808                 dump_data(1, lm_hash, 8);
 809                 pass = False;
 810         }
 811         if (memcmp(session_key.data, nt_key,
 812                    sizeof(nt_key)) != 0) {
 813                 DEBUG(1, ("NT Session Key does not match expectations!\n"));
 814                 DEBUG(1, ("nt_key:\n"));
 815                 dump_data(1, nt_key, 16);
 816                 DEBUG(1, ("expected:\n"));
 817                 dump_data(1, session_key.data, session_key.length);
 818                 pass = False;
 819         }
 820
 821
 822         return pass;
 823 }
 824
 825 /*
 826  * Test the NTLMv2 response only
 827  */
 828
 829 static BOOL test_ntlmv2(void)
 830 {
 831         BOOL pass = True;
 832         NTSTATUS nt_status;
 833         uint32 flags = 0;
 834         DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
 835         DATA_BLOB nt_session_key = data_blob(NULL, 0);
 836         DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
 837
 838         uchar nt_key[16];
 839         DATA_BLOB chall = get_challenge();
 840         char *error_string;
 841
 842         ZERO_STRUCT(nt_key);
 843
 844         flags |= WINBIND_PAM_NTKEY;
 845
 846         if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
 847                               &names_blob,
 848                               NULL, &ntlmv2_response,
 849                               &nt_session_key)) {
 850                 data_blob_free(&names_blob);
 851                 return False;
 852         }
 853         data_blob_free(&names_blob);
 854
 855         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 856                                               opt_workstation,
 857                                               &chall,
 858                                               NULL,
 859                                               &ntlmv2_response,
 860                                               flags,
 861                                               NULL,
 862                                               nt_key,
 863                                               &error_string);
 864
 865         data_blob_free(&ntlmv2_response);
 866
 867         if (!NT_STATUS_IS_OK(nt_status)) {
 868                 d_printf("%s (0x%x)\n",
 869                          error_string,
 870                          NT_STATUS_V(nt_status));
 871                 SAFE_FREE(error_string);
 872                 return False;
 873         }
 874
 875         if (memcmp(nt_session_key.data, nt_key,
 876                    sizeof(nt_key)) != 0) {
 877                 DEBUG(1, ("NT Session Key does not match expectations!\n"));
 878                 DEBUG(1, ("nt_key:\n"));
 879                 dump_data(1, nt_key, 16);
 880                 DEBUG(1, ("expected:\n"));
 881                 dump_data(1, nt_session_key.data, nt_session_key.length);
 882                 pass = False;
 883         }
 884         return pass;
 885 }
 886
 887 /*
 888  * Test the NTLMv2 and LMv2 responses
 889  */
 890
 891 static BOOL test_lmv2_ntlmv2(void)
 892 {
 893         BOOL pass = True;
 894         NTSTATUS nt_status;
 895         uint32 flags = 0;
 896         DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
 897         DATA_BLOB lmv2_response = data_blob(NULL, 0);
 898         DATA_BLOB nt_session_key = data_blob(NULL, 0);
 899         DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
 900
 901         uchar nt_key[16];
 902         DATA_BLOB chall = get_challenge();
 903         char *error_string;
 904
 905         ZERO_STRUCT(nt_key);
 906
 907         flags |= WINBIND_PAM_NTKEY;
 908
 909         if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
 910                               &names_blob,
 911                               &lmv2_response, &ntlmv2_response,
 912                               &nt_session_key)) {
 913                 data_blob_free(&names_blob);
 914                 return False;
 915         }
 916         data_blob_free(&names_blob);
 917
 918         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 919                                               opt_workstation,
 920                                               &chall,
 921                                               &lmv2_response,
 922                                               &ntlmv2_response,
 923                                               flags,
 924                                               NULL,
 925                                               nt_key,
 926                                               &error_string);
 927
 928         data_blob_free(&lmv2_response);
 929         data_blob_free(&ntlmv2_response);
 930
 931         if (!NT_STATUS_IS_OK(nt_status)) {
 932                 d_printf("%s (0x%x)\n",
 933                          error_string,
 934                          NT_STATUS_V(nt_status));
 935                 SAFE_FREE(error_string);
 936                 return False;
 937         }
 938
 939         if (memcmp(nt_session_key.data, nt_key,
 940                    sizeof(nt_key)) != 0) {
 941                 DEBUG(1, ("NT Session Key does not match expectations!\n"));
 942                 DEBUG(1, ("nt_key:\n"));
 943                 dump_data(1, nt_key, 16);
 944                 DEBUG(1, ("expected:\n"));
 945                 dump_data(1, nt_session_key.data, nt_session_key.length);
 946                 pass = False;
 947         }
 948         return pass;
 949 }
 950
 951 /*
 952  * Test the LMv2 response only
 953  */
 954
 955 static BOOL test_lmv2(void)
 956 {
 957         BOOL pass = True;
 958         NTSTATUS nt_status;
 959         uint32 flags = 0;
 960         DATA_BLOB lmv2_response = data_blob(NULL, 0);
 961
 962         DATA_BLOB chall = get_challenge();
 963         char *error_string;
 964
 965         if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
 966                               NULL,
 967                               &lmv2_response, NULL,
 968                               NULL)) {
 969                 return False;
 970         }
 971
 972         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 973                                               opt_workstation,
 974                                               &chall,
 975                                               &lmv2_response,
 976                                               NULL,
 977                                               flags,
 978                                               NULL,
 979                                               NULL,
 980                                               &error_string);
 981
 982         data_blob_free(&lmv2_response);
 983
 984         if (!NT_STATUS_IS_OK(nt_status)) {
 985                 d_printf("%s (0x%x)\n",
 986                          error_string,
 987                          NT_STATUS_V(nt_status));
 988                 SAFE_FREE(error_string);
 989                 return False;
 990         }
 991
 992         return pass;
 993 }
 994
 995 /*
 996  * Test the normal 'LM and NTLM' combination but deliberately break one
 997  */
 998
 999 static BOOL test_ntlm_broken(BOOL break_lm)
1000 {
1001         BOOL pass = True;
1002         NTSTATUS nt_status;
1003         uint32 flags = 0;
1004         DATA_BLOB lm_response = data_blob(NULL, 24);
1005         DATA_BLOB nt_response = data_blob(NULL, 24);
1006         DATA_BLOB session_key = data_blob(NULL, 16);
1007
1008         uchar lm_key[8];
1009         uchar nt_key[16];
1010         uchar lm_hash[16];
1011         uchar nt_hash[16];
1012         DATA_BLOB chall = get_challenge();
1013         char *error_string;
1014
1015         ZERO_STRUCT(lm_key);
1016         ZERO_STRUCT(nt_key);
1017
1018         flags |= WINBIND_PAM_LMKEY;
1019         flags |= WINBIND_PAM_NTKEY;
1020
1021         SMBencrypt(opt_password,chall.data,lm_response.data);
1022         E_deshash(opt_password, lm_hash);
1023
1024         SMBNTencrypt(opt_password,chall.data,nt_response.data);
1025
1026         E_md4hash(opt_password, nt_hash);
1027         SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
1028
1029         if (break_lm)
1030                 lm_response.data[0]++;
1031         else
1032                 nt_response.data[0]++;
1033
1034         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1035                                               opt_workstation,
1036                                               &chall,
1037                                               &lm_response,
1038                                               &nt_response,
1039                                               flags,
1040                                               lm_key,
1041                                               nt_key,
1042                                               &error_string);
1043
1044         data_blob_free(&lm_response);
1045
1046         if (!NT_STATUS_IS_OK(nt_status)) {
1047                 d_printf("%s (0x%x)\n",
1048                          error_string,
1049                          NT_STATUS_V(nt_status));
1050                 SAFE_FREE(error_string);
1051                 return False;
1052         }
1053
1054         if (memcmp(lm_hash, lm_key,
1055                    sizeof(lm_key)) != 0) {
1056                 DEBUG(1, ("LM Key does not match expectations!\n"));
1057                 DEBUG(1, ("lm_key:\n"));
1058                 dump_data(1, lm_key, 8);
1059                 DEBUG(1, ("expected:\n"));
1060                 dump_data(1, lm_hash, 8);
1061                 pass = False;
1062         }
1063         if (memcmp(session_key.data, nt_key,
1064                    sizeof(nt_key)) != 0) {
1065                 DEBUG(1, ("NT Session Key does not match expectations!\n"));
1066                 DEBUG(1, ("nt_key:\n"));
1067                 dump_data(1, nt_key, 16);
1068                 DEBUG(1, ("expected:\n"));
1069                 dump_data(1, session_key.data, session_key.length);
1070                 pass = False;
1071         }
1072         return pass;
1073 }
1074
1075 static BOOL test_ntlm_lm_broken(void)
1076 {
1077         return test_ntlm_broken(True);
1078 }
1079
1080 static BOOL test_ntlm_ntlm_broken(void)
1081 {
1082         return test_ntlm_broken(False);
1083 }
1084
1085 static BOOL test_ntlmv2_broken(BOOL break_lmv2)
1086 {
1087         BOOL pass = True;
1088         NTSTATUS nt_status;
1089         uint32 flags = 0;
1090         DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
1091         DATA_BLOB lmv2_response = data_blob(NULL, 0);
1092         DATA_BLOB nt_session_key = data_blob(NULL, 0);
1093         DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
1094
1095         uchar nt_key[16];
1096         DATA_BLOB chall = get_challenge();
1097         char *error_string;
1098
1099         ZERO_STRUCT(nt_key);
1100
1101         flags |= WINBIND_PAM_NTKEY;
1102
1103         if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
1104                               &names_blob,
1105                               &lmv2_response, &ntlmv2_response,
1106                               &nt_session_key)) {
1107                 data_blob_free(&names_blob);
1108                 return False;
1109         }
1110         data_blob_free(&names_blob);
1111
1112         /* Heh - this should break the appropriate password hash nicely! */
1113
1114         if (break_lmv2)
1115                 lmv2_response.data[0]++;
1116         else
1117                 ntlmv2_response.data[0]++;
1118
1119         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1120                                               opt_workstation,
1121                                               &chall,
1122                                               &lmv2_response,
1123                                               &ntlmv2_response,
1124                                               flags,
1125                                               NULL,
1126                                               nt_key,
1127                                               &error_string);
1128
1129         data_blob_free(&lmv2_response);
1130         data_blob_free(&ntlmv2_response);
1131
1132         if (!NT_STATUS_IS_OK(nt_status)) {
1133                 d_printf("%s (0x%x)\n",
1134                          error_string,
1135                          NT_STATUS_V(nt_status));
1136                 SAFE_FREE(error_string);
1137                 return False;
1138         }
1139
1140         return pass;
1141 }
1142
1143 static BOOL test_ntlmv2_lmv2_broken(void)
1144 {
1145         return test_ntlmv2_broken(True);
1146 }
1147
1148 static BOOL test_ntlmv2_ntlmv2_broken(void)
1149 {
1150         return test_ntlmv2_broken(False);
1151 }
1152
1153 /*
1154    Tests:
1155
1156    - LM only
1157    - NT and LM
1158    - NT
1159    - NT in LM field
1160    - NT in both fields
1161    - NTLMv2
1162    - NTLMv2 and LMv2
1163    - LMv2
1164
1165    check we get the correct session key in each case
1166    check what values we get for the LM session key
1167
1168 */
1169
1170 struct ntlm_tests {
1171         BOOL (*fn)(void);
1172         const char *name;
1173 } test_table[] = {
1174         {test_lm, "LM"},
1175         {test_lm_ntlm, "LM and NTLM"},
1176         {test_ntlm, "NTLM"},
1177         {test_ntlm_in_lm, "NTLM in LM"},
1178         {test_ntlm_in_both, "NTLM in both"},
1179         {test_ntlmv2, "NTLMv2"},
1180         {test_lmv2_ntlmv2, "NTLMv2 and LMv2"},
1181         {test_lmv2, "LMv2"},
1182         {test_ntlmv2_lmv2_broken, "NTLMv2 and LMv2, LMv2 broken"},
1183         {test_ntlmv2_ntlmv2_broken, "NTLMv2 and LMv2, NTLMv2 broken"},
1184         {test_ntlm_lm_broken, "NTLM and LM, LM broken"},
1185         {test_ntlm_ntlm_broken, "NTLM and LM, NTLM broken"}
1186 };
1187
1188 static BOOL diagnose_ntlm_auth(void)
1189 {
1190         unsigned int i;
1191         BOOL pass = True;
1192
1193         for (i=0; test_table[i].fn; i++) {
1194                 if (!test_table[i].fn()) {
1195                         DEBUG(1, ("Test %s failed!\n", test_table[i].name));
1196                         pass = False;
1197                 }
1198         }
1199
1200         return pass;
1201 }
1202
1203 /* Main program */
1204
1205 enum {
1206         OPT_USERNAME = 1000,
1207         OPT_DOMAIN,
1208         OPT_WORKSTATION,
1209         OPT_CHALLENGE,
1210         OPT_RESPONSE,
1211         OPT_LM,
1212         OPT_NT,
1213         OPT_PASSWORD,
1214         OPT_LM_KEY,
1215         OPT_NT_KEY,
1216         OPT_DIAGNOSTICS
1217 };
1218
1219  int main(int argc, const char **argv)
1220 {
1221         int opt;
1222         static const char *helper_protocol;
1223         static int diagnostics;
1224
1225         static const char *hex_challenge;
1226         static const char *hex_lm_response;
1227         static const char *hex_nt_response;
1228         char *challenge;
1229         char *lm_response;
1230         char *nt_response;
1231         size_t challenge_len;
1232         size_t lm_response_len;
1233         size_t nt_response_len;
1234
1235         poptContext pc;
1236
1237         /* NOTE: DO NOT change this interface without considering the implications!
1238            This is an external interface, which other programs will use to interact
1239            with this helper.
1240         */
1241
1242         /* We do not use single-letter command abbreviations, because they harm future
1243            interface stability. */
1244
1245         struct poptOption long_options[] = {
1246                 POPT_AUTOHELP
1247                 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
1248                 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
1249                 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
1250                 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
1251                 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
1252                 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
1253                 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
1254                 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
1255                 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retreive LM session key"},
1256                 { "request-nt-key", 0, POPT_ARG_NONE, &request_nt_key, OPT_NT_KEY, "Retreive NT session key"},
1257                 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
1258                 POPT_COMMON_SAMBA
1259                 POPT_TABLEEND
1260         };
1261
1262         /* Samba client initialisation */
1263
1264         dbf = x_stderr;
1265
1266         /* Parse options */
1267
1268         pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
1269
1270         /* Parse command line options */
1271
1272         if (argc == 1) {
1273                 poptPrintHelp(pc, stderr, 0);
1274                 return 1;
1275         }
1276
1277         pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
1278                             POPT_CONTEXT_KEEP_FIRST);
1279
1280         while((opt = poptGetNextOpt(pc)) != -1) {
1281                 switch (opt) {
1282                 case OPT_CHALLENGE:
1283                         challenge = smb_xmalloc((strlen(hex_challenge)+1)/2);
1284                         if ((challenge_len = strhex_to_str(challenge,
1285                                                            strlen(hex_challenge),
1286                                                            hex_challenge)) != 8) {
1287                                 x_fprintf(x_stderr, "hex decode of %s failed (only got %u bytes)!\n",
1288                                         hex_challenge, challenge_len);
1289                                 exit(1);
1290                         }
1291                         opt_challenge = data_blob(challenge, challenge_len);
1292                         SAFE_FREE(challenge);
1293                         break;
1294                 case OPT_LM:
1295                         lm_response = smb_xmalloc((strlen(hex_lm_response)+1)/2);
1296                         lm_response_len = strhex_to_str(lm_response,
1297                                                         strlen(hex_lm_response),
1298                                                         hex_lm_response);
1299                         if (lm_response_len != 24) {
1300                                 x_fprintf(x_stderr, "hex decode of %s failed!\n", hex_lm_response);
1301                                 exit(1);
1302                         }
1303                         opt_lm_response = data_blob(lm_response, lm_response_len);
1304                         SAFE_FREE(lm_response);
1305                         break;
1306                 case OPT_NT:
1307                         nt_response = smb_xmalloc((strlen(hex_nt_response)+1)/2);
1308                         nt_response_len = strhex_to_str(nt_response,
1309                                                         strlen(hex_nt_response),
1310                                                         hex_nt_response);
1311                         if (nt_response_len < 24) {
1312                                 x_fprintf(x_stderr, "hex decode of %s failed!\n", hex_nt_response);
1313                                 exit(1);
1314                         }
1315                         opt_nt_response = data_blob(nt_response, nt_response_len);
1316                         SAFE_FREE(nt_response);
1317                         break;
1318                 }
1319         }
1320
1321         if (helper_protocol) {
1322                 if (strcmp(helper_protocol, "squid-2.5-ntlmssp")== 0) {
1323                         squid_stream(SQUID_2_5_NTLMSSP);
1324                 } else if (strcmp(helper_protocol, "squid-2.5-basic")== 0) {
1325                         squid_stream(SQUID_2_5_BASIC);
1326                 } else if (strcmp(helper_protocol, "squid-2.4-basic")== 0) {
1327                         squid_stream(SQUID_2_4_BASIC);
1328                 } else {
1329                         x_fprintf(x_stderr, "unknown helper protocol [%s]\n", helper_protocol);
1330                         exit(1);
1331                 }
1332         }
1333
1334         if (!opt_username) {
1335                 x_fprintf(x_stderr, "username must be specified!\n\n");
1336                 poptPrintHelp(pc, stderr, 0);
1337                 exit(1);
1338         }
1339
1340         if (opt_domain == NULL) {
1341                 opt_domain = get_winbind_domain();
1342         }
1343
1344         if (opt_workstation == NULL) {
1345                 opt_workstation = "";
1346         }
1347
1348         if (opt_challenge.length) {
1349                 if (!check_auth_crap()) {
1350                         exit(1);
1351                 }
1352                 exit(0);
1353         }
1354
1355         if (!opt_password) {
1356                 opt_password = getpass("password: ");
1357         }
1358
1359         if (diagnostics) {
1360                 if (!diagnose_ntlm_auth()) {
1361                         exit(1);
1362                 }
1363         } else {
1364                 fstring user;
1365
1366                 snprintf(user, sizeof(user)-1, "%s%c%s", opt_domain, winbind_separator(), opt_username);
1367                 if (!check_plaintext_auth(user, opt_password, True)) {
1368                         exit(1);
1369                 }
1370         }
1371
1372         /* Exit code */
1373
1374         poptFreeContext(pc);
1375         return 0;
1376 }