source/utils/ntlm_auth.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 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 #include "../utils/ntlm_auth.h"
  27
  28 #undef DBGC_CLASS
  29 #define DBGC_CLASS DBGC_WINBIND
  30
  31 #define SQUID_BUFFER_SIZE 2010
  32
  33 enum stdio_helper_mode {
  34         SQUID_2_4_BASIC,
  35         SQUID_2_5_BASIC,
  36         SQUID_2_5_NTLMSSP,
  37         NTLMSSP_CLIENT_1,
  38         GSS_SPNEGO,
  39         GSS_SPNEGO_CLIENT,
  40         NTLM_SERVER_1,
  41         NUM_HELPER_MODES
  42 };
  43
  44 typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
  45                                      char *buf, int length);
  46
  47 static void manage_squid_basic_request (enum stdio_helper_mode stdio_helper_mode,
  48                                         char *buf, int length);
  49
  50 static void manage_squid_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
  51                                           char *buf, int length);
  52
  53 static void manage_client_ntlmssp_request (enum stdio_helper_mode stdio_helper_mode,
  54                                            char *buf, int length);
  55
  56 static void manage_gss_spnego_request (enum stdio_helper_mode stdio_helper_mode,
  57                                        char *buf, int length);
  58
  59 static void manage_gss_spnego_client_request (enum stdio_helper_mode stdio_helper_mode,
  60                                               char *buf, int length);
  61
  62 static void manage_ntlm_server_1_request (enum stdio_helper_mode stdio_helper_mode,
  63                                           char *buf, int length);
  64
  65 static const struct {
  66         enum stdio_helper_mode mode;
  67         const char *name;
  68         stdio_helper_function fn;
  69 } stdio_helper_protocols[] = {
  70         { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
  71         { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
  72         { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
  73         { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
  74         { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
  75         { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
  76         { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
  77         { NUM_HELPER_MODES, NULL, NULL}
  78 };
  79
  80 extern int winbindd_fd;
  81
  82 const char *opt_username;
  83 const char *opt_domain;
  84 const char *opt_workstation;
  85 const char *opt_password;
  86 static DATA_BLOB opt_challenge;
  87 static DATA_BLOB opt_lm_response;
  88 static DATA_BLOB opt_nt_response;
  89 static int request_lm_key;
  90 static int request_user_session_key;
  91
  92 static const char *require_membership_of;
  93 static const char *require_membership_sid;
  94
  95 static char winbind_separator(void)
  96 {
  97         struct winbindd_response response;
  98         static BOOL got_sep;
  99         static char sep;
 100
 101         if (got_sep)
 102                 return sep;
 103
 104         ZERO_STRUCT(response);
 105
 106         /* Send off request */
 107
 108         if (winbindd_request(WINBINDD_INFO, NULL, &response) !=
 109             NSS_STATUS_SUCCESS) {
 110                 d_printf("could not obtain winbind separator!\n");
 111                 return *lp_winbind_separator();
 112         }
 113
 114         sep = response.data.info.winbind_separator;
 115         got_sep = True;
 116
 117         if (!sep) {
 118                 d_printf("winbind separator was NULL!\n");
 119                 return *lp_winbind_separator();
 120         }
 121
 122         return sep;
 123 }
 124
 125 const char *get_winbind_domain(void)
 126 {
 127         struct winbindd_response response;
 128
 129         static fstring winbind_domain;
 130         if (*winbind_domain) {
 131                 return winbind_domain;
 132         }
 133
 134         ZERO_STRUCT(response);
 135
 136         /* Send off request */
 137
 138         if (winbindd_request(WINBINDD_DOMAIN_NAME, NULL, &response) !=
 139             NSS_STATUS_SUCCESS) {
 140                 DEBUG(0, ("could not obtain winbind domain name!\n"));
 141                 return lp_workgroup();
 142         }
 143
 144         fstrcpy(winbind_domain, response.data.domain_name);
 145
 146         return winbind_domain;
 147
 148 }
 149
 150 const char *get_winbind_netbios_name(void)
 151 {
 152         struct winbindd_response response;
 153
 154         static fstring winbind_netbios_name;
 155
 156         if (*winbind_netbios_name) {
 157                 return winbind_netbios_name;
 158         }
 159
 160         ZERO_STRUCT(response);
 161
 162         /* Send off request */
 163
 164         if (winbindd_request(WINBINDD_NETBIOS_NAME, NULL, &response) !=
 165             NSS_STATUS_SUCCESS) {
 166                 DEBUG(0, ("could not obtain winbind netbios name!\n"));
 167                 return global_myname();
 168         }
 169
 170         fstrcpy(winbind_netbios_name, response.data.netbios_name);
 171
 172         return winbind_netbios_name;
 173
 174 }
 175
 176 DATA_BLOB get_challenge(void)
 177 {
 178         static DATA_BLOB chal;
 179         if (opt_challenge.length)
 180                 return opt_challenge;
 181
 182         chal = data_blob(NULL, 8);
 183
 184         generate_random_buffer(chal.data, chal.length, False);
 185         return chal;
 186 }
 187
 188 /* Copy of parse_domain_user from winbindd_util.c.  Parse a string of the
 189    form DOMAIN/user into a domain and a user */
 190
 191 static BOOL parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
 192                                      fstring user)
 193 {
 194
 195         char *p = strchr(domuser,winbind_separator());
 196
 197         if (!p) {
 198                 return False;
 199         }
 200
 201         fstrcpy(user, p+1);
 202         fstrcpy(domain, domuser);
 203         domain[PTR_DIFF(p, domuser)] = 0;
 204         strupper_m(domain);
 205
 206         return True;
 207 }
 208
 209 static BOOL get_require_membership_sid(void) {
 210         struct winbindd_request request;
 211         struct winbindd_response response;
 212
 213         if (!require_membership_of) {
 214                 return True;
 215         }
 216
 217         if (require_membership_sid) {
 218                 return True;
 219         }
 220
 221         /* Otherwise, ask winbindd for the name->sid request */
 222
 223         ZERO_STRUCT(request);
 224         ZERO_STRUCT(response);
 225
 226         if (!parse_ntlm_auth_domain_user(require_membership_of,
 227                                          request.data.name.dom_name,
 228                                          request.data.name.name)) {
 229                 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
 230                           require_membership_of));
 231                 return False;
 232         }
 233
 234         if (winbindd_request(WINBINDD_LOOKUPNAME, &request, &response) !=
 235             NSS_STATUS_SUCCESS) {
 236                 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
 237                           require_membership_of));
 238                 return False;
 239         }
 240
 241         require_membership_sid = strdup(response.data.sid.sid);
 242
 243         if (require_membership_sid)
 244                 return True;
 245
 246         return False;
 247 }
 248 /* Authenticate a user with a plaintext password */
 249
 250 static BOOL check_plaintext_auth(const char *user, const char *pass,
 251                                  BOOL stdout_diagnostics)
 252 {
 253         struct winbindd_request request;
 254         struct winbindd_response response;
 255         NSS_STATUS result;
 256
 257         if (!get_require_membership_sid()) {
 258                 return False;
 259         }
 260
 261         /* Send off request */
 262
 263         ZERO_STRUCT(request);
 264         ZERO_STRUCT(response);
 265
 266         fstrcpy(request.data.auth.user, user);
 267         fstrcpy(request.data.auth.pass, pass);
 268         if (require_membership_sid)
 269                 fstrcpy(request.data.auth.required_membership_sid, require_membership_sid);
 270
 271         result = winbindd_request(WINBINDD_PAM_AUTH, &request, &response);
 272
 273         /* Display response */
 274
 275         if (stdout_diagnostics) {
 276                 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 277                         d_printf("Reading winbind reply failed! (0x01)\n");
 278                 }
 279
 280                 d_printf("%s: %s (0x%x)\n",
 281                          response.data.auth.nt_status_string,
 282                          response.data.auth.error_string,
 283                          response.data.auth.nt_status);
 284         } else {
 285                 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 286                         DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
 287                 }
 288
 289                 DEBUG(3, ("%s: %s (0x%x)\n",
 290                           response.data.auth.nt_status_string,
 291                           response.data.auth.error_string,
 292                           response.data.auth.nt_status));
 293         }
 294
 295         return (result == NSS_STATUS_SUCCESS);
 296 }
 297
 298 /* authenticate a user with an encrypted username/password */
 299
 300 NTSTATUS contact_winbind_auth_crap(const char *username,
 301                                    const char *domain,
 302                                    const char *workstation,
 303                                    const DATA_BLOB *challenge,
 304                                    const DATA_BLOB *lm_response,
 305                                    const DATA_BLOB *nt_response,
 306                                    uint32 flags,
 307                                    uint8 lm_key[8],
 308                                    uint8 user_session_key[16],
 309                                    char **error_string,
 310                                    char **unix_name)
 311 {
 312         NTSTATUS nt_status;
 313         NSS_STATUS result;
 314         struct winbindd_request request;
 315         struct winbindd_response response;
 316
 317         if (!get_require_membership_sid()) {
 318                 return NT_STATUS_INVALID_PARAMETER;
 319         }
 320
 321         ZERO_STRUCT(request);
 322         ZERO_STRUCT(response);
 323
 324         request.flags = flags;
 325
 326         if (require_membership_sid)
 327                 fstrcpy(request.data.auth_crap.required_membership_sid, require_membership_sid);
 328
 329         if (push_utf8_fstring(request.data.auth_crap.user, username) == -1) {
 330                 *error_string = smb_xstrdup(
 331                         "unable to create utf8 string for username");
 332                 return NT_STATUS_UNSUCCESSFUL;
 333         }
 334
 335         if (push_utf8_fstring(request.data.auth_crap.domain, domain) == -1) {
 336                 *error_string = smb_xstrdup(
 337                         "unable to create utf8 string for domain");
 338                 return NT_STATUS_UNSUCCESSFUL;
 339         }
 340
 341         if (push_utf8_fstring(request.data.auth_crap.workstation,
 342                               workstation) == -1) {
 343                 *error_string = smb_xstrdup(
 344                         "unable to create utf8 string for workstation");
 345                 return NT_STATUS_UNSUCCESSFUL;
 346         }
 347
 348         memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
 349
 350         if (lm_response && lm_response->length) {
 351                 memcpy(request.data.auth_crap.lm_resp,
 352                        lm_response->data,
 353                        MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
 354                 request.data.auth_crap.lm_resp_len = lm_response->length;
 355         }
 356
 357         if (nt_response && nt_response->length) {
 358                 memcpy(request.data.auth_crap.nt_resp,
 359                        nt_response->data,
 360                        MIN(nt_response->length, sizeof(request.data.auth_crap.nt_resp)));
 361                 request.data.auth_crap.nt_resp_len = nt_response->length;
 362         }
 363
 364         result = winbindd_request(WINBINDD_PAM_AUTH_CRAP, &request, &response);
 365
 366         /* Display response */
 367
 368         if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 369                 nt_status = NT_STATUS_UNSUCCESSFUL;
 370                 if (error_string)
 371                         *error_string = smb_xstrdup("Reading winbind reply failed!");
 372                 free_response(&response);
 373                 return nt_status;
 374         }
 375
 376         nt_status = (NT_STATUS(response.data.auth.nt_status));
 377         if (!NT_STATUS_IS_OK(nt_status)) {
 378                 if (error_string)
 379                         *error_string = smb_xstrdup(response.data.auth.error_string);
 380                 free_response(&response);
 381                 return nt_status;
 382         }
 383
 384         if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
 385                 memcpy(lm_key, response.data.auth.first_8_lm_hash,
 386                        sizeof(response.data.auth.first_8_lm_hash));
 387         }
 388         if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
 389                 memcpy(user_session_key, response.data.auth.user_session_key,
 390                         sizeof(response.data.auth.user_session_key));
 391         }
 392
 393         if (flags & WBFLAG_PAM_UNIX_NAME) {
 394                 if (pull_utf8_allocate(unix_name, (char *)response.extra_data) == -1) {
 395                         free_response(&response);
 396                         return NT_STATUS_NO_MEMORY;
 397                 }
 398         }
 399
 400         free_response(&response);
 401         return nt_status;
 402 }
 403
 404 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
 405 {
 406         static const char zeros[16];
 407         NTSTATUS nt_status;
 408         char *error_string;
 409         uint8 lm_key[8];
 410         uint8 user_sess_key[16];
 411         char *unix_name;
 412
 413         nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
 414                                               ntlmssp_state->workstation,
 415                                               &ntlmssp_state->chal,
 416                                               &ntlmssp_state->lm_resp,
 417                                               &ntlmssp_state->nt_resp,
 418                                               WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
 419                                               lm_key, user_sess_key,
 420                                               &error_string, &unix_name);
 421
 422         if (NT_STATUS_IS_OK(nt_status)) {
 423                 if (memcmp(lm_key, zeros, 8) != 0) {
 424                         *lm_session_key = data_blob(NULL, 16);
 425                         memcpy(lm_session_key->data, lm_key, 8);
 426                         memset(lm_session_key->data+8, '\0', 8);
 427                 }
 428
 429                 if (memcmp(user_sess_key, zeros, 16) != 0) {
 430                         *user_session_key = data_blob(user_sess_key, 16);
 431                 }
 432                 ntlmssp_state->auth_context = talloc_strdup(ntlmssp_state->mem_ctx, unix_name);
 433                 SAFE_FREE(unix_name);
 434         } else {
 435                 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
 436                       ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
 437                        ntlmssp_state->domain, ntlmssp_state->user,
 438                        ntlmssp_state->workstation,
 439                        error_string ? error_string : "unknown error (NULL)"));
 440                 ntlmssp_state->auth_context = NULL;
 441         }
 442         return nt_status;
 443 }
 444
 445 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
 446 {
 447         NTSTATUS nt_status;
 448         uint8 lm_pw[16], nt_pw[16];
 449
 450         nt_lm_owf_gen (opt_password, nt_pw, lm_pw);
 451
 452         nt_status = ntlm_password_check(ntlmssp_state->mem_ctx,
 453                                         &ntlmssp_state->chal,
 454                                         &ntlmssp_state->lm_resp,
 455                                         &ntlmssp_state->nt_resp,
 456                                         NULL, NULL,
 457                                         ntlmssp_state->user,
 458                                         ntlmssp_state->user,
 459                                         ntlmssp_state->domain,
 460                                         lm_pw, nt_pw, user_session_key, lm_session_key);
 461
 462         if (NT_STATUS_IS_OK(nt_status)) {
 463                 ntlmssp_state->auth_context = talloc_asprintf(ntlmssp_state->mem_ctx,
 464                                                               "%s%c%s", ntlmssp_state->domain,
 465                                                               *lp_winbind_separator(),
 466                                                               ntlmssp_state->user);
 467         } else {
 468                 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
 469                           ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation,
 470                           nt_errstr(nt_status)));
 471                 ntlmssp_state->auth_context = NULL;
 472         }
 473         return nt_status;
 474 }
 475
 476 static NTSTATUS ntlm_auth_start_ntlmssp_client(NTLMSSP_STATE **client_ntlmssp_state)
 477 {
 478         NTSTATUS status;
 479         if ( (opt_username == NULL) || (opt_domain == NULL) ) {
 480                 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
 481                 return status;
 482         }
 483
 484         status = ntlmssp_client_start(client_ntlmssp_state);
 485
 486         if (!NT_STATUS_IS_OK(status)) {
 487                 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
 488                           nt_errstr(status)));
 489                 ntlmssp_end(client_ntlmssp_state);
 490                 return status;
 491         }
 492
 493         status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
 494
 495         if (!NT_STATUS_IS_OK(status)) {
 496                 DEBUG(1, ("Could not set username: %s\n",
 497                           nt_errstr(status)));
 498                 ntlmssp_end(client_ntlmssp_state);
 499                 return status;
 500         }
 501
 502         status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
 503
 504         if (!NT_STATUS_IS_OK(status)) {
 505                 DEBUG(1, ("Could not set domain: %s\n",
 506                           nt_errstr(status)));
 507                 ntlmssp_end(client_ntlmssp_state);
 508                 return status;
 509         }
 510
 511         status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
 512
 513         if (!NT_STATUS_IS_OK(status)) {
 514                 DEBUG(1, ("Could not set password: %s\n",
 515                           nt_errstr(status)));
 516                 ntlmssp_end(client_ntlmssp_state);
 517                 return status;
 518         }
 519         return NT_STATUS_OK;
 520 }
 521
 522 static NTSTATUS ntlm_auth_start_ntlmssp_server(NTLMSSP_STATE **ntlmssp_state)
 523 {
 524         NTSTATUS status = ntlmssp_server_start(ntlmssp_state);
 525
 526         if (!NT_STATUS_IS_OK(status)) {
 527                 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
 528                           nt_errstr(status)));
 529                 return status;
 530         }
 531
 532         /* Have we been given a local password, or should we ask winbind? */
 533         if (opt_password) {
 534                 (*ntlmssp_state)->check_password = local_pw_check;
 535                 (*ntlmssp_state)->get_domain = lp_workgroup;
 536                 (*ntlmssp_state)->get_global_myname = global_myname;
 537         } else {
 538                 (*ntlmssp_state)->check_password = winbind_pw_check;
 539                 (*ntlmssp_state)->get_domain = get_winbind_domain;
 540                 (*ntlmssp_state)->get_global_myname = get_winbind_netbios_name;
 541         }
 542         return NT_STATUS_OK;
 543 }
 544
 545 static void manage_squid_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
 546                                          char *buf, int length)
 547 {
 548         static NTLMSSP_STATE *ntlmssp_state = NULL;
 549         DATA_BLOB request, reply;
 550         NTSTATUS nt_status;
 551
 552         if (strlen(buf) < 2) {
 553                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 554                 x_fprintf(x_stdout, "BH\n");
 555                 return;
 556         }
 557
 558         if (strlen(buf) > 3) {
 559                 request = base64_decode_data_blob(buf + 3);
 560         } else {
 561                 request = data_blob(NULL, 0);
 562         }
 563
 564         if ((strncmp(buf, "PW ", 3) == 0)) {
 565                 /* The calling application wants us to use a local password (rather than winbindd) */
 566
 567                 opt_password = strndup((const char *)request.data, request.length);
 568
 569                 if (opt_password == NULL) {
 570                         DEBUG(1, ("Out of memory\n"));
 571                         x_fprintf(x_stdout, "BH\n");
 572                         data_blob_free(&request);
 573                         return;
 574                 }
 575
 576                 x_fprintf(x_stdout, "OK\n");
 577                 data_blob_free(&request);
 578                 return;
 579         }
 580
 581         if (strncmp(buf, "YR", 2) == 0) {
 582                 if (ntlmssp_state)
 583                         ntlmssp_end(&ntlmssp_state);
 584         } else if (strncmp(buf, "KK", 2) == 0) {
 585
 586         } else {
 587                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 588                 x_fprintf(x_stdout, "BH\n");
 589                 return;
 590         }
 591
 592         if (!ntlmssp_state) {
 593                 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
 594                         x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
 595                         return;
 596                 }
 597         }
 598
 599         DEBUG(10, ("got NTLMSSP packet:\n"));
 600         dump_data(10, (const char *)request.data, request.length);
 601
 602         nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
 603
 604         if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 605                 char *reply_base64 = base64_encode_data_blob(reply);
 606                 x_fprintf(x_stdout, "TT %s\n", reply_base64);
 607                 SAFE_FREE(reply_base64);
 608                 data_blob_free(&reply);
 609                 DEBUG(10, ("NTLMSSP challenge\n"));
 610         } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
 611                 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
 612                 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
 613
 614                 ntlmssp_end(&ntlmssp_state);
 615         } else if (!NT_STATUS_IS_OK(nt_status)) {
 616                 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
 617                 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
 618         } else {
 619                 x_fprintf(x_stdout, "AF %s\n", (char *)ntlmssp_state->auth_context);
 620                 DEBUG(10, ("NTLMSSP OK!\n"));
 621         }
 622
 623         data_blob_free(&request);
 624 }
 625
 626 static void manage_client_ntlmssp_request(enum stdio_helper_mode stdio_helper_mode,
 627                                          char *buf, int length)
 628 {
 629         static NTLMSSP_STATE *ntlmssp_state = NULL;
 630         DATA_BLOB request, reply;
 631         NTSTATUS nt_status;
 632         BOOL first = False;
 633
 634         if (strlen(buf) < 2) {
 635                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 636                 x_fprintf(x_stdout, "BH\n");
 637                 return;
 638         }
 639
 640         if (strlen(buf) > 3) {
 641                 request = base64_decode_data_blob(buf + 3);
 642         } else {
 643                 request = data_blob(NULL, 0);
 644         }
 645
 646         if (strncmp(buf, "PW ", 3) == 0) {
 647                 /* We asked for a password and obviously got it :-) */
 648
 649                 opt_password = strndup((const char *)request.data, request.length);
 650
 651                 if (opt_password == NULL) {
 652                         DEBUG(1, ("Out of memory\n"));
 653                         x_fprintf(x_stdout, "BH\n");
 654                         data_blob_free(&request);
 655                         return;
 656                 }
 657
 658                 x_fprintf(x_stdout, "OK\n");
 659                 data_blob_free(&request);
 660                 return;
 661         }
 662
 663         if (opt_password == NULL) {
 664
 665                 /* Request a password from the calling process.  After
 666                    sending it, the calling process should retry asking for the negotiate. */
 667
 668                 DEBUG(10, ("Requesting password\n"));
 669                 x_fprintf(x_stdout, "PW\n");
 670                 return;
 671         }
 672
 673         if (strncmp(buf, "YR", 2) == 0) {
 674                 if (ntlmssp_state)
 675                         ntlmssp_end(&ntlmssp_state);
 676         } else if (strncmp(buf, "TT", 2) == 0) {
 677
 678         } else {
 679                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 680                 x_fprintf(x_stdout, "BH\n");
 681                 return;
 682         }
 683
 684         if (!ntlmssp_state) {
 685                 if (!NT_STATUS_IS_OK(nt_status = ntlm_auth_start_ntlmssp_client(&ntlmssp_state))) {
 686                         x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
 687                         return;
 688                 }
 689                 first = True;
 690         }
 691
 692         DEBUG(10, ("got NTLMSSP packet:\n"));
 693         dump_data(10, (const char *)request.data, request.length);
 694
 695         nt_status = ntlmssp_update(ntlmssp_state, request, &reply);
 696
 697         if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 698                 char *reply_base64 = base64_encode_data_blob(reply);
 699                 if (first) {
 700                         x_fprintf(x_stdout, "YR %s\n", reply_base64);
 701                 } else {
 702                         x_fprintf(x_stdout, "KK %s\n", reply_base64);
 703                 }
 704                 SAFE_FREE(reply_base64);
 705                 data_blob_free(&reply);
 706                 DEBUG(10, ("NTLMSSP challenge\n"));
 707         } else if (NT_STATUS_IS_OK(nt_status)) {
 708                 x_fprintf(x_stdout, "AF\n");
 709                 DEBUG(10, ("NTLMSSP OK!\n"));
 710                 if (ntlmssp_state)
 711                         ntlmssp_end(&ntlmssp_state);
 712         } else {
 713                 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
 714                 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
 715                 if (ntlmssp_state)
 716                         ntlmssp_end(&ntlmssp_state);
 717         }
 718
 719         data_blob_free(&request);
 720 }
 721
 722 static void manage_squid_basic_request(enum stdio_helper_mode stdio_helper_mode,
 723                                        char *buf, int length)
 724 {
 725         char *user, *pass;
 726         user=buf;
 727
 728         pass=memchr(buf,' ',length);
 729         if (!pass) {
 730                 DEBUG(2, ("Password not found. Denying access\n"));
 731                 x_fprintf(x_stdout, "ERR\n");
 732                 return;
 733         }
 734         *pass='\0';
 735         pass++;
 736
 737         if (stdio_helper_mode == SQUID_2_5_BASIC) {
 738                 rfc1738_unescape(user);
 739                 rfc1738_unescape(pass);
 740         }
 741
 742         if (check_plaintext_auth(user, pass, False)) {
 743                 x_fprintf(x_stdout, "OK\n");
 744         } else {
 745                 x_fprintf(x_stdout, "ERR\n");
 746         }
 747 }
 748
 749 static void offer_gss_spnego_mechs(void) {
 750
 751         DATA_BLOB token;
 752         SPNEGO_DATA spnego;
 753         ssize_t len;
 754         char *reply_base64;
 755
 756         pstring principal;
 757         pstring myname_lower;
 758
 759         ZERO_STRUCT(spnego);
 760
 761         pstrcpy(myname_lower, global_myname());
 762         strlower_m(myname_lower);
 763
 764         pstr_sprintf(principal, "%s$@%s", myname_lower, lp_realm());
 765
 766         /* Server negTokenInit (mech offerings) */
 767         spnego.type = SPNEGO_NEG_TOKEN_INIT;
 768         spnego.negTokenInit.mechTypes = smb_xmalloc(sizeof(char *) * 3);
 769 #ifdef HAVE_KRB5
 770         spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_KERBEROS5_OLD);
 771         spnego.negTokenInit.mechTypes[1] = smb_xstrdup(OID_NTLMSSP);
 772         spnego.negTokenInit.mechTypes[2] = NULL;
 773 #else
 774         spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_NTLMSSP);
 775         spnego.negTokenInit.mechTypes[1] = NULL;
 776 #endif
 777
 778
 779         spnego.negTokenInit.mechListMIC = data_blob(principal,
 780                                                     strlen(principal));
 781
 782         len = write_spnego_data(&token, &spnego);
 783         free_spnego_data(&spnego);
 784
 785         if (len == -1) {
 786                 DEBUG(1, ("Could not write SPNEGO data blob\n"));
 787                 x_fprintf(x_stdout, "BH\n");
 788                 return;
 789         }
 790
 791         reply_base64 = base64_encode_data_blob(token);
 792         x_fprintf(x_stdout, "TT %s *\n", reply_base64);
 793
 794         SAFE_FREE(reply_base64);
 795         data_blob_free(&token);
 796         DEBUG(10, ("sent SPNEGO negTokenInit\n"));
 797         return;
 798 }
 799
 800 static void manage_gss_spnego_request(enum stdio_helper_mode stdio_helper_mode,
 801                                       char *buf, int length)
 802 {
 803         static NTLMSSP_STATE *ntlmssp_state = NULL;
 804         SPNEGO_DATA request, response;
 805         DATA_BLOB token;
 806         NTSTATUS status;
 807         ssize_t len;
 808
 809         char *user = NULL;
 810         char *domain = NULL;
 811
 812         const char *reply_code;
 813         char       *reply_base64;
 814         pstring     reply_argument;
 815
 816         if (strlen(buf) < 2) {
 817                 DEBUG(1, ("SPENGO query [%s] invalid", buf));
 818                 x_fprintf(x_stdout, "BH\n");
 819                 return;
 820         }
 821
 822         if (strncmp(buf, "YR", 2) == 0) {
 823                 if (ntlmssp_state)
 824                         ntlmssp_end(&ntlmssp_state);
 825         } else if (strncmp(buf, "KK", 2) == 0) {
 826
 827         } else {
 828                 DEBUG(1, ("SPENGO query [%s] invalid", buf));
 829                 x_fprintf(x_stdout, "BH\n");
 830                 return;
 831         }
 832
 833         if ( (strlen(buf) == 2)) {
 834
 835                 /* no client data, get the negTokenInit offering
 836                    mechanisms */
 837
 838                 offer_gss_spnego_mechs();
 839                 return;
 840         }
 841
 842         /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
 843
 844         if (strlen(buf) <= 3) {
 845                 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
 846                 x_fprintf(x_stdout, "BH\n");
 847                 return;
 848         }
 849
 850         token = base64_decode_data_blob(buf + 3);
 851         len = read_spnego_data(token, &request);
 852         data_blob_free(&token);
 853
 854         if (len == -1) {
 855                 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
 856                 x_fprintf(x_stdout, "BH\n");
 857                 return;
 858         }
 859
 860         if (request.type == SPNEGO_NEG_TOKEN_INIT) {
 861
 862                 /* Second request from Client. This is where the
 863                    client offers its mechanism to use. */
 864
 865                 if ( (request.negTokenInit.mechTypes == NULL) ||
 866                      (request.negTokenInit.mechTypes[0] == NULL) ) {
 867                         DEBUG(1, ("Client did not offer any mechanism"));
 868                         x_fprintf(x_stdout, "BH\n");
 869                         return;
 870                 }
 871
 872                 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
 873
 874                         if ( request.negTokenInit.mechToken.data == NULL ) {
 875                                 DEBUG(1, ("Client did not provide  NTLMSSP data\n"));
 876                                 x_fprintf(x_stdout, "BH\n");
 877                                 return;
 878                         }
 879
 880                         if ( ntlmssp_state != NULL ) {
 881                                 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
 882                                           "already got one\n"));
 883                                 x_fprintf(x_stdout, "BH\n");
 884                                 ntlmssp_end(&ntlmssp_state);
 885                                 return;
 886                         }
 887
 888                         if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
 889                                 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
 890                                 return;
 891                         }
 892
 893                         DEBUG(10, ("got NTLMSSP packet:\n"));
 894                         dump_data(10, (const char *)request.negTokenInit.mechToken.data,
 895                                   request.negTokenInit.mechToken.length);
 896
 897                         response.type = SPNEGO_NEG_TOKEN_TARG;
 898                         response.negTokenTarg.supportedMech = strdup(OID_NTLMSSP);
 899                         response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
 900
 901                         status = ntlmssp_update(ntlmssp_state,
 902                                                        request.negTokenInit.mechToken,
 903                                                        &response.negTokenTarg.responseToken);
 904                 }
 905
 906 #ifdef HAVE_KRB5
 907                 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
 908
 909                         char *principal;
 910                         DATA_BLOB auth_data;
 911                         DATA_BLOB ap_rep;
 912                         DATA_BLOB session_key;
 913
 914                         if ( request.negTokenInit.mechToken.data == NULL ) {
 915                                 DEBUG(1, ("Client did not provide Kerberos data\n"));
 916                                 x_fprintf(x_stdout, "BH\n");
 917                                 return;
 918                         }
 919
 920                         response.type = SPNEGO_NEG_TOKEN_TARG;
 921                         response.negTokenTarg.supportedMech = strdup(OID_KERBEROS5_OLD);
 922                         response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
 923                         response.negTokenTarg.responseToken = data_blob(NULL, 0);
 924
 925                         status = ads_verify_ticket(lp_realm(),
 926                                                    &request.negTokenInit.mechToken,
 927                                                    &principal, &auth_data, &ap_rep,
 928                                                    &session_key);
 929
 930                         /* Now in "principal" we have the name we are
 931                            authenticated as. */
 932
 933                         if (NT_STATUS_IS_OK(status)) {
 934
 935                                 domain = strchr(principal, '@');
 936
 937                                 if (domain == NULL) {
 938                                         DEBUG(1, ("Did not get a valid principal "
 939                                                   "from ads_verify_ticket\n"));
 940                                         x_fprintf(x_stdout, "BH\n");
 941                                         return;
 942                                 }
 943
 944                                 *domain++ = '\0';
 945                                 domain = strdup(domain);
 946                                 user = strdup(principal);
 947
 948                                 data_blob_free(&ap_rep);
 949                                 data_blob_free(&auth_data);
 950
 951                                 SAFE_FREE(principal);
 952                         }
 953                 }
 954 #endif
 955
 956         } else {
 957
 958                 if ( (request.negTokenTarg.supportedMech == NULL) ||
 959                      ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
 960                         /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
 961                            is the only one we support that sends this stuff */
 962                         DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
 963                                   request.negTokenTarg.supportedMech));
 964                         x_fprintf(x_stdout, "BH\n");
 965                         return;
 966                 }
 967
 968                 if (request.negTokenTarg.responseToken.data == NULL) {
 969                         DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
 970                         x_fprintf(x_stdout, "BH\n");
 971                         return;
 972                 }
 973
 974                 status = ntlmssp_update(ntlmssp_state,
 975                                                request.negTokenTarg.responseToken,
 976                                                &response.negTokenTarg.responseToken);
 977
 978                 response.type = SPNEGO_NEG_TOKEN_TARG;
 979                 response.negTokenTarg.supportedMech = strdup(OID_NTLMSSP);
 980                 response.negTokenTarg.mechListMIC = data_blob(NULL, 0);
 981
 982                 if (NT_STATUS_IS_OK(status)) {
 983                         user = strdup(ntlmssp_state->user);
 984                         domain = strdup(ntlmssp_state->domain);
 985                         ntlmssp_end(&ntlmssp_state);
 986                 }
 987         }
 988
 989         free_spnego_data(&request);
 990
 991         if (NT_STATUS_IS_OK(status)) {
 992                 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
 993                 reply_code = "AF";
 994                 pstr_sprintf(reply_argument, "%s\\%s", domain, user);
 995         } else if (NT_STATUS_EQUAL(status,
 996                                    NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 997                 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
 998                 reply_code = "TT";
 999                 pstr_sprintf(reply_argument, "*");
1000         } else {
1001                 response.negTokenTarg.negResult = SPNEGO_REJECT;
1002                 reply_code = "NA";
1003                 pstrcpy(reply_argument, nt_errstr(status));
1004         }
1005
1006         SAFE_FREE(user);
1007         SAFE_FREE(domain);
1008
1009         len = write_spnego_data(&token, &response);
1010         free_spnego_data(&response);
1011
1012         if (len == -1) {
1013                 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1014                 x_fprintf(x_stdout, "BH\n");
1015                 return;
1016         }
1017
1018         reply_base64 = base64_encode_data_blob(token);
1019
1020         x_fprintf(x_stdout, "%s %s %s\n",
1021                   reply_code, reply_base64, reply_argument);
1022
1023         SAFE_FREE(reply_base64);
1024         data_blob_free(&token);
1025
1026         return;
1027 }
1028
1029 static NTLMSSP_STATE *client_ntlmssp_state = NULL;
1030
1031 static BOOL manage_client_ntlmssp_init(SPNEGO_DATA spnego)
1032 {
1033         NTSTATUS status;
1034         DATA_BLOB null_blob = data_blob(NULL, 0);
1035         DATA_BLOB to_server;
1036         char *to_server_base64;
1037         const char *my_mechs[] = {OID_NTLMSSP, NULL};
1038
1039         DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1040
1041         if (client_ntlmssp_state != NULL) {
1042                 DEBUG(1, ("Request for initial SPNEGO request where "
1043                           "we already have a state\n"));
1044                 return False;
1045         }
1046
1047         if (!client_ntlmssp_state) {
1048                 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1049                         x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1050                         return False;
1051                 }
1052         }
1053
1054
1055         if (opt_password == NULL) {
1056
1057                 /* Request a password from the calling process.  After
1058                    sending it, the calling process should retry with
1059                    the negTokenInit. */
1060
1061                 DEBUG(10, ("Requesting password\n"));
1062                 x_fprintf(x_stdout, "PW\n");
1063                 return True;
1064         }
1065
1066         spnego.type = SPNEGO_NEG_TOKEN_INIT;
1067         spnego.negTokenInit.mechTypes = my_mechs;
1068         spnego.negTokenInit.reqFlags = 0;
1069         spnego.negTokenInit.mechListMIC = null_blob;
1070
1071         status = ntlmssp_update(client_ntlmssp_state, null_blob,
1072                                        &spnego.negTokenInit.mechToken);
1073
1074         if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1075                 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED, got: %s\n",
1076                           nt_errstr(status)));
1077                 ntlmssp_end(&client_ntlmssp_state);
1078                 return False;
1079         }
1080
1081         write_spnego_data(&to_server, &spnego);
1082         data_blob_free(&spnego.negTokenInit.mechToken);
1083
1084         to_server_base64 = base64_encode_data_blob(to_server);
1085         data_blob_free(&to_server);
1086         x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1087         SAFE_FREE(to_server_base64);
1088         return True;
1089 }
1090
1091 static void manage_client_ntlmssp_targ(SPNEGO_DATA spnego)
1092 {
1093         NTSTATUS status;
1094         DATA_BLOB null_blob = data_blob(NULL, 0);
1095         DATA_BLOB request;
1096         DATA_BLOB to_server;
1097         char *to_server_base64;
1098
1099         DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1100
1101         if (client_ntlmssp_state == NULL) {
1102                 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1103                 x_fprintf(x_stdout, "BH\n");
1104                 ntlmssp_end(&client_ntlmssp_state);
1105                 return;
1106         }
1107
1108         if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1109                 x_fprintf(x_stdout, "NA\n");
1110                 ntlmssp_end(&client_ntlmssp_state);
1111                 return;
1112         }
1113
1114         if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1115                 x_fprintf(x_stdout, "AF\n");
1116                 ntlmssp_end(&client_ntlmssp_state);
1117                 return;
1118         }
1119
1120         status = ntlmssp_update(client_ntlmssp_state,
1121                                        spnego.negTokenTarg.responseToken,
1122                                        &request);
1123
1124         if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1125                 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1126                           "ntlmssp_client_update, got: %s\n",
1127                           nt_errstr(status)));
1128                 x_fprintf(x_stdout, "BH\n");
1129                 data_blob_free(&request);
1130                 ntlmssp_end(&client_ntlmssp_state);
1131                 return;
1132         }
1133
1134         spnego.type = SPNEGO_NEG_TOKEN_TARG;
1135         spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1136         spnego.negTokenTarg.supportedMech = OID_NTLMSSP;
1137         spnego.negTokenTarg.responseToken = request;
1138         spnego.negTokenTarg.mechListMIC = null_blob;
1139
1140         write_spnego_data(&to_server, &spnego);
1141         data_blob_free(&request);
1142
1143         to_server_base64 = base64_encode_data_blob(to_server);
1144         data_blob_free(&to_server);
1145         x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1146         SAFE_FREE(to_server_base64);
1147         return;
1148 }
1149
1150 #ifdef HAVE_KRB5
1151
1152 static BOOL manage_client_krb5_init(SPNEGO_DATA spnego)
1153 {
1154         char *principal;
1155         DATA_BLOB tkt, to_server;
1156         DATA_BLOB session_key_krb5 = data_blob(NULL, 0);
1157         SPNEGO_DATA reply;
1158         char *reply_base64;
1159         int retval;
1160
1161         const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1162         ssize_t len;
1163
1164         if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1165              (spnego.negTokenInit.mechListMIC.length == 0) ) {
1166                 DEBUG(1, ("Did not get a principal for krb5\n"));
1167                 return False;
1168         }
1169
1170         principal = malloc(spnego.negTokenInit.mechListMIC.length+1);
1171
1172         if (principal == NULL) {
1173                 DEBUG(1, ("Could not malloc principal\n"));
1174                 return False;
1175         }
1176
1177         memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1178                spnego.negTokenInit.mechListMIC.length);
1179         principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1180
1181         retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5);
1182
1183         if (retval) {
1184
1185                 pstring user;
1186
1187                 /* Let's try to first get the TGT, for that we need a
1188                    password. */
1189
1190                 if (opt_password == NULL) {
1191                         DEBUG(10, ("Requesting password\n"));
1192                         x_fprintf(x_stdout, "PW\n");
1193                         return True;
1194                 }
1195
1196                 pstr_sprintf(user, "%s@%s", opt_username, opt_domain);
1197
1198                 if ((retval = kerberos_kinit_password(user, opt_password,
1199                                                       0, NULL))) {
1200                         DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1201                         return False;
1202                 }
1203
1204                 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5);
1205
1206                 if (retval) {
1207                         DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1208                         return False;
1209                 }
1210         }
1211
1212         data_blob_free(&session_key_krb5);
1213
1214         ZERO_STRUCT(reply);
1215
1216         reply.type = SPNEGO_NEG_TOKEN_INIT;
1217         reply.negTokenInit.mechTypes = my_mechs;
1218         reply.negTokenInit.reqFlags = 0;
1219         reply.negTokenInit.mechToken = tkt;
1220         reply.negTokenInit.mechListMIC = data_blob(NULL, 0);
1221
1222         len = write_spnego_data(&to_server, &reply);
1223         data_blob_free(&tkt);
1224
1225         if (len == -1) {
1226                 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1227                 return False;
1228         }
1229
1230         reply_base64 = base64_encode_data_blob(to_server);
1231         x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1232
1233         SAFE_FREE(reply_base64);
1234         data_blob_free(&to_server);
1235         DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1236         return True;
1237 }
1238
1239 static void manage_client_krb5_targ(SPNEGO_DATA spnego)
1240 {
1241         switch (spnego.negTokenTarg.negResult) {
1242         case SPNEGO_ACCEPT_INCOMPLETE:
1243                 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1244                 x_fprintf(x_stdout, "BH\n");
1245                 break;
1246         case SPNEGO_ACCEPT_COMPLETED:
1247                 DEBUG(10, ("Accept completed\n"));
1248                 x_fprintf(x_stdout, "AF\n");
1249                 break;
1250         case SPNEGO_REJECT:
1251                 DEBUG(10, ("Rejected\n"));
1252                 x_fprintf(x_stdout, "NA\n");
1253                 break;
1254         default:
1255                 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1256                 x_fprintf(x_stdout, "AF\n");
1257         }
1258 }
1259
1260 #endif
1261
1262 static void manage_gss_spnego_client_request(enum stdio_helper_mode stdio_helper_mode,
1263                                              char *buf, int length)
1264 {
1265         DATA_BLOB request;
1266         SPNEGO_DATA spnego;
1267         ssize_t len;
1268
1269         if (strlen(buf) <= 3) {
1270                 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1271                 x_fprintf(x_stdout, "BH\n");
1272                 return;
1273         }
1274
1275         request = base64_decode_data_blob(buf+3);
1276
1277         if (strncmp(buf, "PW ", 3) == 0) {
1278
1279                 /* We asked for a password and obviously got it :-) */
1280
1281                 opt_password = strndup((const char *)request.data, request.length);
1282
1283                 if (opt_password == NULL) {
1284                         DEBUG(1, ("Out of memory\n"));
1285                         x_fprintf(x_stdout, "BH\n");
1286                         data_blob_free(&request);
1287                         return;
1288                 }
1289
1290                 x_fprintf(x_stdout, "OK\n");
1291                 data_blob_free(&request);
1292                 return;
1293         }
1294
1295         if ( (strncmp(buf, "TT ", 3) != 0) &&
1296              (strncmp(buf, "AF ", 3) != 0) &&
1297              (strncmp(buf, "NA ", 3) != 0) ) {
1298                 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1299                 x_fprintf(x_stdout, "BH\n");
1300                 data_blob_free(&request);
1301                 return;
1302         }
1303
1304         /* So we got a server challenge to generate a SPNEGO
1305            client-to-server request... */
1306
1307         len = read_spnego_data(request, &spnego);
1308         data_blob_free(&request);
1309
1310         if (len == -1) {
1311                 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1312                 x_fprintf(x_stdout, "BH\n");
1313                 return;
1314         }
1315
1316         if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1317
1318                 /* The server offers a list of mechanisms */
1319
1320                 const char **mechType = spnego.negTokenInit.mechTypes;
1321
1322                 while (*mechType != NULL) {
1323
1324 #ifdef HAVE_KRB5
1325                         if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1326                              (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1327                                 if (manage_client_krb5_init(spnego))
1328                                         goto out;
1329                         }
1330 #endif
1331
1332                         if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1333                                 if (manage_client_ntlmssp_init(spnego))
1334                                         goto out;
1335                         }
1336
1337                         mechType++;
1338                 }
1339
1340                 DEBUG(1, ("Server offered no compatible mechanism\n"));
1341                 x_fprintf(x_stdout, "BH\n");
1342                 return;
1343         }
1344
1345         if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1346
1347                 if (spnego.negTokenTarg.supportedMech == NULL) {
1348                         /* On accept/reject Windows does not send the
1349                            mechanism anymore. Handle that here and
1350                            shut down the mechanisms. */
1351
1352                         switch (spnego.negTokenTarg.negResult) {
1353                         case SPNEGO_ACCEPT_COMPLETED:
1354                                 x_fprintf(x_stdout, "AF\n");
1355                                 break;
1356                         case SPNEGO_REJECT:
1357                                 x_fprintf(x_stdout, "NA\n");
1358                                 break;
1359                         default:
1360                                 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1361                                           "unknown negResult: %d\n",
1362                                           spnego.negTokenTarg.negResult));
1363                                 x_fprintf(x_stdout, "BH\n");
1364                         }
1365
1366                         ntlmssp_end(&client_ntlmssp_state);
1367                         goto out;
1368                 }
1369
1370                 if (strcmp(spnego.negTokenTarg.supportedMech,
1371                            OID_NTLMSSP) == 0) {
1372                         manage_client_ntlmssp_targ(spnego);
1373                         goto out;
1374                 }
1375
1376 #if HAVE_KRB5
1377                 if (strcmp(spnego.negTokenTarg.supportedMech,
1378                            OID_KERBEROS5_OLD) == 0) {
1379                         manage_client_krb5_targ(spnego);
1380                         goto out;
1381                 }
1382 #endif
1383
1384         }
1385
1386         DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1387         x_fprintf(x_stdout, "BH\n");
1388         return;
1389
1390  out:
1391         free_spnego_data(&spnego);
1392         return;
1393 }
1394
1395 static void manage_ntlm_server_1_request(enum stdio_helper_mode stdio_helper_mode,
1396                                          char *buf, int length)
1397 {
1398         char *request, *parameter;
1399         static DATA_BLOB challenge;
1400         static DATA_BLOB lm_response;
1401         static DATA_BLOB nt_response;
1402         static char *full_username;
1403         static char *username;
1404         static char *domain;
1405         static char *plaintext_password;
1406         static BOOL ntlm_server_1_user_session_key;
1407         static BOOL ntlm_server_1_lm_session_key;
1408
1409         if (strequal(buf, ".")) {
1410                 if (!full_username && !username) {
1411                         x_fprintf(x_stdout, "Error: No username supplied!\n");
1412                 } else if (plaintext_password) {
1413                         /* handle this request as plaintext */
1414                         if (!full_username) {
1415                                 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1416                                         x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1417                                         return;
1418                                 }
1419                         }
1420                         if (check_plaintext_auth(full_username, plaintext_password, False)) {
1421                                 x_fprintf(x_stdout, "Authenticated: Yes\n");
1422                         } else {
1423                                 x_fprintf(x_stdout, "Authenticated: No\n");
1424                         }
1425                 } else if (!lm_response.data && !nt_response.data) {
1426                         x_fprintf(x_stdout, "Error: No password supplied!\n");
1427                 } else if (!challenge.data) {
1428                         x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1429                 } else {
1430                         char *error_string = NULL;
1431                         uchar lm_key[8];
1432                         uchar user_session_key[16];
1433                         uint32 flags = 0;
1434
1435                         if (full_username && !username) {
1436                                 fstring fstr_user;
1437                                 fstring fstr_domain;
1438
1439                                 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1440                                         /* username might be 'tainted', don't print into our new-line deleimianted stream */
1441                                         x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1442                                 }
1443                                 SAFE_FREE(username);
1444                                 SAFE_FREE(domain);
1445                                 username = smb_xstrdup(fstr_user);
1446                                 domain = smb_xstrdup(fstr_domain);
1447                         }
1448
1449                         if (!domain) {
1450                                 domain = smb_xstrdup(get_winbind_domain());
1451                         }
1452
1453                         if (ntlm_server_1_lm_session_key)
1454                                 flags |= WBFLAG_PAM_LMKEY;
1455
1456                         if (ntlm_server_1_user_session_key)
1457                                 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1458
1459                         if (!NT_STATUS_IS_OK(
1460                                     contact_winbind_auth_crap(username,
1461                                                               domain,
1462                                                               global_myname(),
1463                                                               &challenge,
1464                                                               &lm_response,
1465                                                               &nt_response,
1466                                                               flags,
1467                                                               lm_key,
1468                                                               user_session_key,
1469                                                               &error_string,
1470                                                               NULL))) {
1471
1472                                 x_fprintf(x_stdout, "Authenticated: No\n");
1473                                 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1474                                 SAFE_FREE(error_string);
1475                         } else {
1476                                 static char zeros[16];
1477                                 char *hex_lm_key;
1478                                 char *hex_user_session_key;
1479
1480                                 x_fprintf(x_stdout, "Authenticated: Yes\n");
1481
1482                                 if (ntlm_server_1_lm_session_key
1483                                     && (memcmp(zeros, lm_key,
1484                                                sizeof(lm_key)) != 0)) {
1485                                         hex_encode((const unsigned char *)lm_key,
1486                                                    sizeof(lm_key),
1487                                                    &hex_lm_key);
1488                                         x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1489                                         SAFE_FREE(hex_lm_key);
1490                                 }
1491
1492                                 if (ntlm_server_1_user_session_key
1493                                     && (memcmp(zeros, user_session_key,
1494                                                sizeof(user_session_key)) != 0)) {
1495                                         hex_encode((const unsigned char *)user_session_key,
1496                                                    sizeof(user_session_key),
1497                                                    &hex_user_session_key);
1498                                         x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1499                                         SAFE_FREE(hex_user_session_key);
1500                                 }
1501                         }
1502                 }
1503                 /* clear out the state */
1504                 challenge = data_blob(NULL, 0);
1505                 nt_response = data_blob(NULL, 0);
1506                 lm_response = data_blob(NULL, 0);
1507                 SAFE_FREE(full_username);
1508                 SAFE_FREE(username);
1509                 SAFE_FREE(domain);
1510                 SAFE_FREE(plaintext_password);
1511                 ntlm_server_1_user_session_key = False;
1512                 ntlm_server_1_lm_session_key = False;
1513                 x_fprintf(x_stdout, ".\n");
1514
1515                 return;
1516         }
1517
1518         request = buf;
1519
1520         /* Indicates a base64 encoded structure */
1521         parameter = strstr_m(request, ":: ");
1522         if (!parameter) {
1523                 parameter = strstr_m(request, ": ");
1524
1525                 if (!parameter) {
1526                         DEBUG(0, ("Parameter not found!\n"));
1527                         x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1528                         return;
1529                 }
1530
1531                 parameter[0] ='\0';
1532                 parameter++;
1533                 parameter[0] ='\0';
1534                 parameter++;
1535
1536         } else {
1537                 parameter[0] ='\0';
1538                 parameter++;
1539                 parameter[0] ='\0';
1540                 parameter++;
1541                 parameter[0] ='\0';
1542                 parameter++;
1543
1544                 base64_decode_inplace(parameter);
1545         }
1546
1547         if (strequal(request, "LANMAN-Challenge")) {
1548                 challenge = strhex_to_data_blob(parameter);
1549                 if (challenge.length != 8) {
1550                         x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1551                                   parameter,
1552                                   (int)challenge.length);
1553                         challenge = data_blob(NULL, 0);
1554                 }
1555         } else if (strequal(request, "NT-Response")) {
1556                 nt_response = strhex_to_data_blob(parameter);
1557                 if (nt_response.length < 24) {
1558                         x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1559                                   parameter,
1560                                   (int)opt_nt_response.length);
1561                         nt_response = data_blob(NULL, 0);
1562                 }
1563         } else if (strequal(request, "LANMAN-Response")) {
1564                 lm_response = strhex_to_data_blob(parameter);
1565                 if (lm_response.length != 24) {
1566                         x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
1567                                   parameter,
1568                                   (int)lm_response.length);
1569                         lm_response = data_blob(NULL, 0);
1570                 }
1571         } else if (strequal(request, "Password")) {
1572                 plaintext_password = smb_xstrdup(parameter);
1573         } else if (strequal(request, "NT-Domain")) {
1574                 domain = smb_xstrdup(parameter);
1575         } else if (strequal(request, "Username")) {
1576                 username = smb_xstrdup(parameter);
1577         } else if (strequal(request, "Full-Username")) {
1578                 full_username = smb_xstrdup(parameter);
1579         } else if (strequal(request, "Request-User-Session-Key")) {
1580                 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
1581         } else if (strequal(request, "Request-LanMan-Session-Key")) {
1582                 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
1583         } else {
1584                 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
1585         }
1586 }
1587
1588 static void manage_squid_request(enum stdio_helper_mode helper_mode, stdio_helper_function fn)
1589 {
1590         char buf[SQUID_BUFFER_SIZE+1];
1591         int length;
1592         char *c;
1593         static BOOL err;
1594
1595         /* this is not a typo - x_fgets doesn't work too well under squid */
1596         if (fgets(buf, sizeof(buf)-1, stdin) == NULL) {
1597                 if (ferror(stdin)) {
1598                         DEBUG(1, ("fgets() failed! dying..... errno=%d (%s)\n", ferror(stdin),
1599                                   strerror(ferror(stdin))));
1600
1601                         exit(1);    /* BIIG buffer */
1602                 }
1603                 exit(0);
1604         }
1605
1606         c=memchr(buf,'\n',sizeof(buf)-1);
1607         if (c) {
1608                 *c = '\0';
1609                 length = c-buf;
1610         } else {
1611                 err = 1;
1612                 return;
1613         }
1614         if (err) {
1615                 DEBUG(2, ("Oversized message\n"));
1616                 x_fprintf(x_stderr, "ERR\n");
1617                 err = 0;
1618                 return;
1619         }
1620
1621         DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
1622
1623         if (buf[0] == '\0') {
1624                 DEBUG(2, ("Invalid Request\n"));
1625                 x_fprintf(x_stderr, "ERR\n");
1626                 return;
1627         }
1628
1629         fn(helper_mode, buf, length);
1630 }
1631
1632
1633 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
1634         /* initialize FDescs */
1635         x_setbuf(x_stdout, NULL);
1636         x_setbuf(x_stderr, NULL);
1637         while(1) {
1638                 manage_squid_request(stdio_mode, fn);
1639         }
1640 }
1641
1642
1643 /* Authenticate a user with a challenge/response */
1644
1645 static BOOL check_auth_crap(void)
1646 {
1647         NTSTATUS nt_status;
1648         uint32 flags = 0;
1649         char lm_key[8];
1650         char user_session_key[16];
1651         char *hex_lm_key;
1652         char *hex_user_session_key;
1653         char *error_string;
1654         static uint8 zeros[16];
1655
1656         x_setbuf(x_stdout, NULL);
1657
1658         if (request_lm_key)
1659                 flags |= WBFLAG_PAM_LMKEY;
1660
1661         if (request_user_session_key)
1662                 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1663
1664         flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
1665
1666         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
1667                                               opt_workstation,
1668                                               &opt_challenge,
1669                                               &opt_lm_response,
1670                                               &opt_nt_response,
1671                                               flags,
1672                                               (unsigned char *)lm_key,
1673                                               (unsigned char *)user_session_key,
1674                                               &error_string, NULL);
1675
1676         if (!NT_STATUS_IS_OK(nt_status)) {
1677                 x_fprintf(x_stdout, "%s (0x%x)\n",
1678                           error_string,
1679                           NT_STATUS_V(nt_status));
1680                 SAFE_FREE(error_string);
1681                 return False;
1682         }
1683
1684         if (request_lm_key
1685             && (memcmp(zeros, lm_key,
1686                        sizeof(lm_key)) != 0)) {
1687                 hex_encode((const unsigned char *)lm_key,
1688                            sizeof(lm_key),
1689                            &hex_lm_key);
1690                 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
1691                 SAFE_FREE(hex_lm_key);
1692         }
1693         if (request_user_session_key
1694             && (memcmp(zeros, user_session_key,
1695                        sizeof(user_session_key)) != 0)) {
1696                 hex_encode((const unsigned char *)user_session_key,
1697                            sizeof(user_session_key),
1698                            &hex_user_session_key);
1699                 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
1700                 SAFE_FREE(hex_user_session_key);
1701         }
1702
1703         return True;
1704 }
1705
1706 /* Main program */
1707
1708 enum {
1709         OPT_USERNAME = 1000,
1710         OPT_DOMAIN,
1711         OPT_WORKSTATION,
1712         OPT_CHALLENGE,
1713         OPT_RESPONSE,
1714         OPT_LM,
1715         OPT_NT,
1716         OPT_PASSWORD,
1717         OPT_LM_KEY,
1718         OPT_USER_SESSION_KEY,
1719         OPT_DIAGNOSTICS,
1720         OPT_REQUIRE_MEMBERSHIP
1721 };
1722
1723  int main(int argc, const char **argv)
1724 {
1725         int opt;
1726         static const char *helper_protocol;
1727         static int diagnostics;
1728
1729         static const char *hex_challenge;
1730         static const char *hex_lm_response;
1731         static const char *hex_nt_response;
1732
1733         poptContext pc;
1734
1735         /* NOTE: DO NOT change this interface without considering the implications!
1736            This is an external interface, which other programs will use to interact
1737            with this helper.
1738         */
1739
1740         /* We do not use single-letter command abbreviations, because they harm future
1741            interface stability. */
1742
1743         struct poptOption long_options[] = {
1744                 POPT_AUTOHELP
1745                 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
1746                 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
1747                 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
1748                 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
1749                 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
1750                 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
1751                 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
1752                 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
1753                 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retreive LM session key"},
1754                 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retreive User (NT) session key"},
1755                 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
1756                 { "require-membership-of", 0, POPT_ARG_STRING, &require_membership_of, OPT_REQUIRE_MEMBERSHIP, "Require that a user be a member of this group (either name or SID) for authentication to succeed" },
1757                 POPT_COMMON_SAMBA
1758                 POPT_TABLEEND
1759         };
1760
1761         /* Samba client initialisation */
1762
1763         dbf = x_stderr;
1764
1765         /* Samba client initialisation */
1766
1767         if (!lp_load(dyn_CONFIGFILE, True, False, False)) {
1768                 d_fprintf(stderr, "wbinfo: error opening config file %s. Error was %s\n",
1769                         dyn_CONFIGFILE, strerror(errno));
1770                 exit(1);
1771         }
1772
1773         /* Parse options */
1774
1775         pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
1776
1777         /* Parse command line options */
1778
1779         if (argc == 1) {
1780                 poptPrintHelp(pc, stderr, 0);
1781                 return 1;
1782         }
1783
1784         pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
1785                             POPT_CONTEXT_KEEP_FIRST);
1786
1787         while((opt = poptGetNextOpt(pc)) != -1) {
1788                 switch (opt) {
1789                 case OPT_CHALLENGE:
1790                         opt_challenge = strhex_to_data_blob(hex_challenge);
1791                         if (opt_challenge.length != 8) {
1792                                 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
1793                                           hex_challenge,
1794                                           (int)opt_challenge.length);
1795                                 exit(1);
1796                         }
1797                         break;
1798                 case OPT_LM:
1799                         opt_lm_response = strhex_to_data_blob(hex_lm_response);
1800                         if (opt_lm_response.length != 24) {
1801                                 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
1802                                           hex_lm_response,
1803                                           (int)opt_lm_response.length);
1804                                 exit(1);
1805                         }
1806                         break;
1807
1808                 case OPT_NT:
1809                         opt_nt_response = strhex_to_data_blob(hex_nt_response);
1810                         if (opt_nt_response.length < 24) {
1811                                 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
1812                                           hex_nt_response,
1813                                           (int)opt_nt_response.length);
1814                                 exit(1);
1815                         }
1816                         break;
1817
1818                 case OPT_REQUIRE_MEMBERSHIP:
1819                         if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
1820                                 require_membership_sid = require_membership_of;
1821                         }
1822                         break;
1823                 }
1824         }
1825
1826         if (helper_protocol) {
1827                 int i;
1828                 for (i=0; i<NUM_HELPER_MODES; i++) {
1829                         if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
1830                                 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
1831                                 exit(0);
1832                         }
1833                 }
1834                 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
1835
1836                 for (i=0; i<NUM_HELPER_MODES; i++) {
1837                         x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
1838                 }
1839
1840                 exit(1);
1841         }
1842
1843         if (!opt_username) {
1844                 x_fprintf(x_stderr, "username must be specified!\n\n");
1845                 poptPrintHelp(pc, stderr, 0);
1846                 exit(1);
1847         }
1848
1849         if (opt_domain == NULL) {
1850                 opt_domain = get_winbind_domain();
1851         }
1852
1853         if (opt_workstation == NULL) {
1854                 opt_workstation = "";
1855         }
1856
1857         if (opt_challenge.length) {
1858                 if (!check_auth_crap()) {
1859                         exit(1);
1860                 }
1861                 exit(0);
1862         }
1863
1864         if (!opt_password) {
1865                 opt_password = getpass("password: ");
1866         }
1867
1868         if (diagnostics) {
1869                 if (!diagnose_ntlm_auth()) {
1870                         return 1;
1871                 }
1872         } else {
1873                 fstring user;
1874
1875                 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
1876                 if (!check_plaintext_auth(user, opt_password, True)) {
1877                         return 1;
1878                 }
1879         }
1880
1881         /* Exit code */
1882
1883         poptFreeContext(pc);
1884         return 0;
1885 }