source3/utils/ntlm_auth_diagnostics.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind status program.
   5
   6    Copyright (C) Tim Potter      2000-2003
   7    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2004
   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 3 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, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 #include "includes.h"
  25 #include "utils/ntlm_auth.h"
  26 #include "../libcli/auth/libcli_auth.h"
  27 #include "nsswitch/winbind_client.h"
  28
  29 #undef DBGC_CLASS
  30 #define DBGC_CLASS DBGC_WINBIND
  31
  32 enum ntlm_break {
  33         BREAK_NONE,
  34         BREAK_LM,
  35         BREAK_NT,
  36         NO_LM,
  37         NO_NT
  38 };
  39
  40 /*
  41    Authenticate a user with a challenge/response, checking session key
  42    and valid authentication types
  43 */
  44
  45 /*
  46  * Test the normal 'LM and NTLM' combination
  47  */
  48
  49 static bool test_lm_ntlm_broken(enum ntlm_break break_which,
  50                                 bool lanman_support_expected)
  51 {
  52         bool pass = True;
  53         NTSTATUS nt_status;
  54         uint32_t flags = 0;
  55         DATA_BLOB lm_response = data_blob(NULL, 24);
  56         DATA_BLOB nt_response = data_blob(NULL, 24);
  57         DATA_BLOB session_key = data_blob(NULL, 16);
  58         uint8_t authoritative = 1;
  59         uchar lm_key[8];
  60         uchar user_session_key[16];
  61         uchar lm_hash[16];
  62         uchar nt_hash[16];
  63         DATA_BLOB chall = get_challenge();
  64         char *error_string;
  65
  66         ZERO_STRUCT(lm_key);
  67         ZERO_STRUCT(user_session_key);
  68
  69         flags |= WBFLAG_PAM_LMKEY;
  70         flags |= WBFLAG_PAM_USER_SESSION_KEY;
  71
  72         SMBencrypt(opt_password,chall.data,lm_response.data);
  73         E_deshash(opt_password, lm_hash);
  74
  75         SMBNTencrypt(opt_password,chall.data,nt_response.data);
  76
  77         E_md4hash(opt_password, nt_hash);
  78         SMBsesskeygen_ntv1(nt_hash, session_key.data);
  79
  80         switch (break_which) {
  81         case BREAK_NONE:
  82                 break;
  83         case BREAK_LM:
  84                 lm_response.data[0]++;
  85                 break;
  86         case BREAK_NT:
  87                 nt_response.data[0]++;
  88                 break;
  89         case NO_LM:
  90                 data_blob_free(&lm_response);
  91                 break;
  92         case NO_NT:
  93                 data_blob_free(&nt_response);
  94                 break;
  95         }
  96
  97         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
  98                                               opt_workstation,
  99                                               &chall,
 100                                               &lm_response,
 101                                               &nt_response,
 102                                               flags, 0,
 103                                               lm_key,
 104                                               user_session_key,
 105                                               &authoritative,
 106                                               &error_string, NULL);
 107
 108         data_blob_free(&lm_response);
 109         data_blob_free(&nt_response);
 110
 111         if (!NT_STATUS_IS_OK(nt_status)) {
 112                 d_printf("%s (0x%x)\n",
 113                          error_string,
 114                          NT_STATUS_V(nt_status));
 115                 SAFE_FREE(error_string);
 116                 data_blob_free(&session_key);
 117
 118                 return break_which == BREAK_NT;
 119         }
 120
 121         /* If we are told the DC is Samba4, expect an LM key of zeros */
 122         if (!lanman_support_expected) {
 123                 if (!all_zero(lm_key,
 124                               sizeof(lm_key))) {
 125                         DEBUG(1, ("LM Key does not match expectations!\n"));
 126                         DEBUG(1, ("lm_key:\n"));
 127                         dump_data(1, lm_key, 8);
 128                         DEBUG(1, ("expected: all zeros\n"));
 129                         pass = False;
 130                 }
 131         } else {
 132                 if (memcmp(lm_hash, lm_key,
 133                            sizeof(lm_key)) != 0) {
 134                         DEBUG(1, ("LM Key does not match expectations!\n"));
 135                         DEBUG(1, ("lm_key:\n"));
 136                         dump_data(1, lm_key, 8);
 137                         DEBUG(1, ("expected:\n"));
 138                         dump_data(1, lm_hash, 8);
 139                         pass = False;
 140                 }
 141         }
 142
 143         if (break_which == NO_NT) {
 144                 if (memcmp(lm_hash, user_session_key,
 145                            8) != 0) {
 146                         DEBUG(1, ("NT Session Key does not match expectations (should be LM hash)!\n"));
 147                         DEBUG(1, ("user_session_key:\n"));
 148                         dump_data(1, user_session_key, sizeof(user_session_key));
 149                         DEBUG(1, ("expected:\n"));
 150                         dump_data(1, lm_hash, sizeof(lm_hash));
 151                         pass = False;
 152                 }
 153         } else {
 154                 if (memcmp(session_key.data, user_session_key,
 155                            sizeof(user_session_key)) != 0) {
 156                         DEBUG(1, ("NT Session Key does not match expectations!\n"));
 157                         DEBUG(1, ("user_session_key:\n"));
 158                         dump_data(1, user_session_key, 16);
 159                         DEBUG(1, ("expected:\n"));
 160                         dump_data(1, session_key.data, session_key.length);
 161                         pass = False;
 162                 }
 163         }
 164         data_blob_free(&session_key);
 165
 166         return pass;
 167 }
 168
 169 /*
 170  * Test LM authentication, no NT response supplied
 171  */
 172
 173 static bool test_lm(bool lanman_support_expected)
 174 {
 175
 176         return test_lm_ntlm_broken(NO_NT, lanman_support_expected);
 177 }
 178
 179 /*
 180  * Test the NTLM response only, no LM.
 181  */
 182
 183 static bool test_ntlm(bool lanman_support_expected)
 184 {
 185         return test_lm_ntlm_broken(NO_LM, lanman_support_expected);
 186 }
 187
 188 /*
 189  * Test the NTLM response only, but in the LM field.
 190  */
 191
 192 static bool test_ntlm_in_lm(bool lanman_support_expected)
 193 {
 194         bool pass = True;
 195         NTSTATUS nt_status;
 196         uint32_t flags = 0;
 197         DATA_BLOB nt_response = data_blob(NULL, 24);
 198         uint8_t authoritative = 1;
 199         uchar lm_key[8];
 200         uchar lm_hash[16];
 201         uchar user_session_key[16];
 202         DATA_BLOB chall = get_challenge();
 203         char *error_string = NULL;
 204
 205         ZERO_STRUCT(user_session_key);
 206
 207         flags |= WBFLAG_PAM_LMKEY;
 208         flags |= WBFLAG_PAM_USER_SESSION_KEY;
 209
 210         SMBNTencrypt(opt_password,chall.data,nt_response.data);
 211
 212         E_deshash(opt_password, lm_hash);
 213
 214         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 215                                               opt_workstation,
 216                                               &chall,
 217                                               &nt_response,
 218                                               NULL,
 219                                               flags, 0,
 220                                               lm_key,
 221                                               user_session_key,
 222                                               &authoritative,
 223                                               &error_string, NULL);
 224
 225         data_blob_free(&nt_response);
 226
 227         if (!NT_STATUS_IS_OK(nt_status)) {
 228                 d_printf("%s (0x%x)\n",
 229                          error_string,
 230                          NT_STATUS_V(nt_status));
 231                 SAFE_FREE(error_string);
 232                 return False;
 233         }
 234         SAFE_FREE(error_string);
 235
 236         /* If we are told the DC is Samba4, expect an LM key of zeros */
 237         if (!lanman_support_expected) {
 238                 if (!all_zero(lm_key,
 239                               sizeof(lm_key))) {
 240                         DEBUG(1, ("LM Key does not match expectations!\n"));
 241                         DEBUG(1, ("lm_key:\n"));
 242                         dump_data(1, lm_key, 8);
 243                         DEBUG(1, ("expected: all zeros\n"));
 244                         pass = False;
 245                 }
 246                 if (!all_zero(user_session_key,
 247                               sizeof(user_session_key))) {
 248                         DEBUG(1, ("Session Key (normally first 8 lm hash) does not match expectations!\n"));
 249                         DEBUG(1, ("user_session_key:\n"));
 250                         dump_data(1, user_session_key, 16);
 251                         DEBUG(1, ("expected all zeros:\n"));
 252                         pass = False;
 253                 }
 254         } else {
 255                 if (memcmp(lm_hash, lm_key,
 256                            sizeof(lm_key)) != 0) {
 257                         DEBUG(1, ("LM Key does not match expectations!\n"));
 258                         DEBUG(1, ("lm_key:\n"));
 259                         dump_data(1, lm_key, 8);
 260                         DEBUG(1, ("expected:\n"));
 261                         dump_data(1, lm_hash, 8);
 262                         pass = False;
 263                 }
 264                 if (memcmp(lm_hash, user_session_key, 8) != 0) {
 265                         DEBUG(1, ("Session Key (first 8 lm hash) does not match expectations!\n"));
 266                         DEBUG(1, ("user_session_key:\n"));
 267                         dump_data(1, user_session_key, 16);
 268                         DEBUG(1, ("expected:\n"));
 269                         dump_data(1, lm_hash, 8);
 270                         pass = False;
 271                 }
 272         }
 273         return pass;
 274 }
 275
 276 /*
 277  * Test the NTLM response only, but in the both the NT and LM fields.
 278  */
 279
 280 static bool test_ntlm_in_both(bool lanman_support_expected)
 281 {
 282         bool pass = True;
 283         NTSTATUS nt_status;
 284         uint32_t flags = 0;
 285         DATA_BLOB nt_response = data_blob(NULL, 24);
 286         DATA_BLOB session_key = data_blob(NULL, 16);
 287         uint8_t authoritative = 1;
 288         uint8_t lm_key[8];
 289         uint8_t lm_hash[16];
 290         uint8_t user_session_key[16];
 291         uint8_t nt_hash[16];
 292         DATA_BLOB chall = get_challenge();
 293         char *error_string = NULL;
 294
 295         ZERO_STRUCT(lm_key);
 296         ZERO_STRUCT(user_session_key);
 297
 298         flags |= WBFLAG_PAM_LMKEY;
 299         flags |= WBFLAG_PAM_USER_SESSION_KEY;
 300
 301         SMBNTencrypt(opt_password,chall.data,nt_response.data);
 302         E_md4hash(opt_password, nt_hash);
 303         SMBsesskeygen_ntv1(nt_hash, session_key.data);
 304
 305         E_deshash(opt_password, lm_hash);
 306
 307         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 308                                               opt_workstation,
 309                                               &chall,
 310                                               &nt_response,
 311                                               &nt_response,
 312                                               flags, 0,
 313                                               lm_key,
 314                                               user_session_key,
 315                                               &authoritative,
 316                                               &error_string, NULL);
 317
 318         data_blob_free(&nt_response);
 319
 320         if (!NT_STATUS_IS_OK(nt_status)) {
 321                 d_printf("%s (0x%x)\n",
 322                          error_string,
 323                          NT_STATUS_V(nt_status));
 324                 SAFE_FREE(error_string);
 325                 return False;
 326         }
 327         SAFE_FREE(error_string);
 328
 329         /* If we are told the DC is Samba4, expect an LM key of zeros */
 330         if (!lanman_support_expected) {
 331                 if (!all_zero(lm_key,
 332                               sizeof(lm_key))) {
 333                         DEBUG(1, ("LM Key does not match expectations!\n"));
 334                         DEBUG(1, ("lm_key:\n"));
 335                         dump_data(1, lm_key, 8);
 336                         DEBUG(1, ("expected: all zeros\n"));
 337                         pass = False;
 338                 }
 339         } else {
 340                 if (memcmp(lm_hash, lm_key,
 341                            sizeof(lm_key)) != 0) {
 342                         DEBUG(1, ("LM Key does not match expectations!\n"));
 343                         DEBUG(1, ("lm_key:\n"));
 344                         dump_data(1, lm_key, 8);
 345                         DEBUG(1, ("expected:\n"));
 346                         dump_data(1, lm_hash, 8);
 347                         pass = False;
 348                 }
 349         }
 350         if (memcmp(session_key.data, user_session_key,
 351                    sizeof(user_session_key)) != 0) {
 352                 DEBUG(1, ("NT Session Key does not match expectations!\n"));
 353                 DEBUG(1, ("user_session_key:\n"));
 354                 dump_data(1, user_session_key, 16);
 355                 DEBUG(1, ("expected:\n"));
 356                 dump_data(1, session_key.data, session_key.length);
 357                 pass = False;
 358         }
 359
 360
 361         return pass;
 362 }
 363
 364 /*
 365  * Test the NTLMv2 and LMv2 responses
 366  */
 367
 368 static bool test_lmv2_ntlmv2_broken(enum ntlm_break break_which)
 369 {
 370         bool pass = True;
 371         NTSTATUS nt_status;
 372         uint32_t flags = 0;
 373         DATA_BLOB ntlmv2_response = data_blob_null;
 374         DATA_BLOB lmv2_response = data_blob_null;
 375         DATA_BLOB ntlmv2_session_key = data_blob_null;
 376         DATA_BLOB names_blob = NTLMv2_generate_names_blob(NULL, get_winbind_netbios_name(), get_winbind_domain());
 377         uint8_t authoritative = 1;
 378         uchar user_session_key[16];
 379         DATA_BLOB chall = get_challenge();
 380         char *error_string = NULL;
 381
 382         ZERO_STRUCT(user_session_key);
 383
 384         flags |= WBFLAG_PAM_USER_SESSION_KEY;
 385
 386         if (!SMBNTLMv2encrypt(NULL, opt_username, opt_domain, opt_password, &chall,
 387                               &names_blob,
 388                               &lmv2_response, &ntlmv2_response, NULL,
 389                               &ntlmv2_session_key)) {
 390                 data_blob_free(&names_blob);
 391                 return False;
 392         }
 393         data_blob_free(&names_blob);
 394
 395         switch (break_which) {
 396         case BREAK_NONE:
 397                 break;
 398         case BREAK_LM:
 399                 lmv2_response.data[0]++;
 400                 break;
 401         case BREAK_NT:
 402                 ntlmv2_response.data[0]++;
 403                 break;
 404         case NO_LM:
 405                 data_blob_free(&lmv2_response);
 406                 break;
 407         case NO_NT:
 408                 data_blob_free(&ntlmv2_response);
 409                 break;
 410         }
 411
 412         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 413                                               opt_workstation,
 414                                               &chall,
 415                                               &lmv2_response,
 416                                               &ntlmv2_response,
 417                                               flags, 0,
 418                                               NULL,
 419                                               user_session_key,
 420                                               &authoritative,
 421                                               &error_string, NULL);
 422
 423         data_blob_free(&lmv2_response);
 424         data_blob_free(&ntlmv2_response);
 425
 426         if (!NT_STATUS_IS_OK(nt_status)) {
 427                 d_printf("%s (0x%x)\n",
 428                          error_string,
 429                          NT_STATUS_V(nt_status));
 430                 SAFE_FREE(error_string);
 431                 return break_which == BREAK_NT;
 432         }
 433
 434         SAFE_FREE(error_string);
 435
 436         if (break_which != NO_NT && break_which != BREAK_NT && memcmp(ntlmv2_session_key.data, user_session_key,
 437                    sizeof(user_session_key)) != 0) {
 438                 DEBUG(1, ("USER (NTLMv2) Session Key does not match expectations!\n"));
 439                 DEBUG(1, ("user_session_key:\n"));
 440                 dump_data(1, user_session_key, 16);
 441                 DEBUG(1, ("expected:\n"));
 442                 dump_data(1, ntlmv2_session_key.data, ntlmv2_session_key.length);
 443                 pass = False;
 444         }
 445
 446         data_blob_free(&ntlmv2_session_key);
 447         return pass;
 448 }
 449
 450 /*
 451  * Test the NTLMv2 and LMv2 responses
 452  */
 453
 454 static bool test_lmv2_ntlmv2(bool lanman_support_expected)
 455 {
 456         return test_lmv2_ntlmv2_broken(BREAK_NONE);
 457 }
 458
 459 /*
 460  * Test the LMv2 response only
 461  */
 462
 463 static bool test_lmv2(bool lanman_support_expected)
 464 {
 465         return test_lmv2_ntlmv2_broken(NO_NT);
 466 }
 467
 468 /*
 469  * Test the NTLMv2 response only
 470  */
 471
 472 static bool test_ntlmv2(bool lanman_support_expected)
 473 {
 474         return test_lmv2_ntlmv2_broken(NO_LM);
 475 }
 476
 477 static bool test_lm_ntlm(bool lanman_support_expected)
 478 {
 479         return test_lm_ntlm_broken(BREAK_NONE, lanman_support_expected);
 480 }
 481
 482 static bool test_ntlm_lm_broken(bool lanman_support_expected)
 483 {
 484         return test_lm_ntlm_broken(BREAK_LM, lanman_support_expected);
 485 }
 486
 487 static bool test_ntlm_ntlm_broken(bool lanman_support_expected)
 488 {
 489         return test_lm_ntlm_broken(BREAK_NT, lanman_support_expected);
 490 }
 491
 492 static bool test_ntlmv2_lmv2_broken(bool lanman_support_expected)
 493 {
 494         return test_lmv2_ntlmv2_broken(BREAK_LM);
 495 }
 496
 497 static bool test_ntlmv2_ntlmv2_broken(bool lanman_support_expected)
 498 {
 499         return test_lmv2_ntlmv2_broken(BREAK_NT);
 500 }
 501
 502 static bool test_plaintext(enum ntlm_break break_which)
 503 {
 504         NTSTATUS nt_status;
 505         uint32_t flags = 0;
 506         DATA_BLOB nt_response = data_blob_null;
 507         DATA_BLOB lm_response = data_blob_null;
 508         char *password;
 509         smb_ucs2_t *nt_response_ucs2;
 510         size_t converted_size;
 511         uint8_t authoritative = 1;
 512         uchar user_session_key[16];
 513         uchar lm_key[16];
 514         static const uchar zeros[8] = { 0, };
 515         DATA_BLOB chall = data_blob(zeros, sizeof(zeros));
 516         char *error_string = NULL;
 517
 518         ZERO_STRUCT(user_session_key);
 519
 520         flags |= WBFLAG_PAM_LMKEY;
 521         flags |= WBFLAG_PAM_USER_SESSION_KEY;
 522
 523         if (!push_ucs2_talloc(talloc_tos(), &nt_response_ucs2, opt_password,
 524                                 &converted_size))
 525         {
 526                 DEBUG(0, ("push_ucs2_talloc failed!\n"));
 527                 exit(1);
 528         }
 529
 530         nt_response.data = (unsigned char *)nt_response_ucs2;
 531         nt_response.length = strlen_w(nt_response_ucs2)*sizeof(smb_ucs2_t);
 532
 533         if ((password = strupper_talloc(talloc_tos(), opt_password)) == NULL) {
 534                 DEBUG(0, ("strupper_talloc() failed!\n"));
 535                 exit(1);
 536         }
 537
 538         if (!convert_string_talloc(talloc_tos(), CH_UNIX,
 539                                    CH_DOS, password,
 540                                    strlen(password)+1,
 541                                    &lm_response.data,
 542                                    &lm_response.length)) {
 543                 DEBUG(0, ("convert_string_talloc failed!\n"));
 544                 exit(1);
 545         }
 546
 547         TALLOC_FREE(password);
 548
 549         switch (break_which) {
 550         case BREAK_NONE:
 551                 break;
 552         case BREAK_LM:
 553                 lm_response.data[0]++;
 554                 break;
 555         case BREAK_NT:
 556                 nt_response.data[0]++;
 557                 break;
 558         case NO_LM:
 559                 TALLOC_FREE(lm_response.data);
 560                 lm_response.length = 0;
 561                 break;
 562         case NO_NT:
 563                 TALLOC_FREE(nt_response.data);
 564                 nt_response.length = 0;
 565                 break;
 566         }
 567
 568         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
 569                                               opt_workstation,
 570                                               &chall,
 571                                               &lm_response,
 572                                               &nt_response,
 573                                               flags, MSV1_0_CLEARTEXT_PASSWORD_ALLOWED,
 574                                               lm_key,
 575                                               user_session_key,
 576                                               &authoritative,
 577                                               &error_string, NULL);
 578
 579         TALLOC_FREE(nt_response.data);
 580         TALLOC_FREE(lm_response.data);
 581         data_blob_free(&chall);
 582
 583         if (!NT_STATUS_IS_OK(nt_status)) {
 584                 d_printf("%s (0x%x)\n",
 585                          error_string,
 586                          NT_STATUS_V(nt_status));
 587                 SAFE_FREE(error_string);
 588                 return break_which == BREAK_NT;
 589         }
 590         SAFE_FREE(error_string);
 591
 592         return break_which != BREAK_NT;
 593 }
 594
 595 static bool test_plaintext_none_broken(bool lanman_support_expected) {
 596         return test_plaintext(BREAK_NONE);
 597 }
 598
 599 static bool test_plaintext_lm_broken(bool lanman_support_expected) {
 600         return test_plaintext(BREAK_LM);
 601 }
 602
 603 static bool test_plaintext_nt_broken(bool lanman_support_expected) {
 604         return test_plaintext(BREAK_NT);
 605 }
 606
 607 static bool test_plaintext_nt_only(bool lanman_support_expected) {
 608         return test_plaintext(NO_LM);
 609 }
 610
 611 static bool test_plaintext_lm_only(bool lanman_support_expected) {
 612         return test_plaintext(NO_NT);
 613 }
 614
 615 /*
 616    Tests:
 617
 618    - LM only
 619    - NT and LM
 620    - NT
 621    - NT in LM field
 622    - NT in both fields
 623    - NTLMv2
 624    - NTLMv2 and LMv2
 625    - LMv2
 626    - plaintext tests (in challenge-response fields)
 627
 628    check we get the correct session key in each case
 629    check what values we get for the LM session key
 630
 631 */
 632
 633 static const struct ntlm_tests {
 634         bool (*fn)(bool lanman_support_expected);
 635         const char *name;
 636         bool lanman;
 637 } test_table[] = {
 638         {
 639                 .fn = test_lm,
 640                 .name = "LM",
 641                 .lanman = true
 642         },
 643         {
 644                 .fn = test_lm_ntlm,
 645                 .name = "LM and NTLM"
 646         },
 647         {
 648                 .fn = test_ntlm,
 649                 .name = "NTLM"
 650         },
 651         {
 652                 .fn = test_ntlm_in_lm,
 653                 .name = "NTLM in LM"
 654         },
 655         {
 656                 .fn = test_ntlm_in_both,
 657                 .name = "NTLM in both"
 658         },
 659         {
 660                 .fn = test_ntlmv2,
 661                 .name = "NTLMv2"
 662         },
 663         {
 664                 .fn = test_lmv2_ntlmv2,
 665                 .name = "NTLMv2 and LMv2"
 666         },
 667         {
 668                 .fn = test_lmv2,
 669                 .name = "LMv2"
 670         },
 671         {
 672                 .fn = test_ntlmv2_lmv2_broken,
 673                 .name = "NTLMv2 and LMv2, LMv2 broken"
 674         },
 675         {
 676                 .fn = test_ntlmv2_ntlmv2_broken,
 677                 .name = "NTLMv2 and LMv2, NTLMv2 broken"
 678         },
 679         {
 680                 .fn = test_ntlm_lm_broken,
 681                 .name = "NTLM and LM, LM broken"
 682         },
 683         {
 684                 .fn = test_ntlm_ntlm_broken,
 685                 .name = "NTLM and LM, NTLM broken"
 686         },
 687         {
 688                 .fn = test_plaintext_none_broken,
 689                 .name = "Plaintext"
 690         },
 691         {
 692                 .fn = test_plaintext_lm_broken,
 693                 .name = "Plaintext LM broken"
 694         },
 695         {
 696                 .fn = test_plaintext_nt_broken,
 697                 .name = "Plaintext NT broken"
 698         },
 699         {
 700                 .fn = test_plaintext_nt_only,
 701                 .name = "Plaintext NT only"
 702         },
 703         {
 704                 .fn = test_plaintext_lm_only,
 705                 .name = "Plaintext LM only",
 706                 .lanman = true
 707         },
 708         {
 709                 .fn = NULL
 710         }
 711 };
 712
 713 bool diagnose_ntlm_auth(bool lanman_support_expected)
 714 {
 715         unsigned int i;
 716         bool pass = True;
 717
 718         for (i=0; test_table[i].fn; i++) {
 719                 bool test_pass = test_table[i].fn(lanman_support_expected);
 720                 if (!lanman_support_expected
 721                     && test_table[i].lanman) {
 722                         if (test_pass) {
 723                                 DBG_ERR("Test %s unexpectedly passed "
 724                                         "(server should have rejected LM)!\n",
 725                                         test_table[i].name);
 726                                 pass = false;
 727                         }
 728                 } else if (!test_pass) {
 729                         DBG_ERR("Test %s failed!\n", test_table[i].name);
 730                         pass = False;
 731                 }
 732         }
 733
 734         return pass;
 735 }
 736