source3/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    Copyright (C) Robert O'Callahan 2006 (added cached credential code).
  10    Copyright (C) Kai Blin <kai@samba.org> 2008
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24 */
  25
  26 #include "includes.h"
  27 #include "utils/ntlm_auth.h"
  28
  29 #undef DBGC_CLASS
  30 #define DBGC_CLASS DBGC_WINBIND
  31
  32 #define INITIAL_BUFFER_SIZE 300
  33 #define MAX_BUFFER_SIZE 630000
  34
  35 enum stdio_helper_mode {
  36         SQUID_2_4_BASIC,
  37         SQUID_2_5_BASIC,
  38         SQUID_2_5_NTLMSSP,
  39         NTLMSSP_CLIENT_1,
  40         GSS_SPNEGO,
  41         GSS_SPNEGO_CLIENT,
  42         NTLM_SERVER_1,
  43         NTLM_CHANGE_PASSWORD_1,
  44         NUM_HELPER_MODES
  45 };
  46
  47 enum ntlm_auth_cli_state {
  48         CLIENT_INITIAL = 0,
  49         CLIENT_RESPONSE,
  50         CLIENT_FINISHED,
  51         CLIENT_ERROR
  52 };
  53
  54 enum ntlm_auth_svr_state {
  55         SERVER_INITIAL = 0,
  56         SERVER_CHALLENGE,
  57         SERVER_FINISHED,
  58         SERVER_ERROR
  59 };
  60
  61 struct ntlm_auth_state {
  62         TALLOC_CTX *mem_ctx;
  63         enum stdio_helper_mode helper_mode;
  64         enum ntlm_auth_cli_state cli_state;
  65         enum ntlm_auth_svr_state svr_state;
  66         struct ntlmssp_state *ntlmssp_state;
  67         uint32_t neg_flags;
  68         char *want_feature_list;
  69         bool have_session_key;
  70         DATA_BLOB session_key;
  71         DATA_BLOB initial_message;
  72 };
  73
  74 typedef void (*stdio_helper_function)(struct ntlm_auth_state *state, char *buf,
  75                                         int length);
  76
  77 static void manage_squid_basic_request (struct ntlm_auth_state *state,
  78                                         char *buf, int length);
  79
  80 static void manage_squid_ntlmssp_request (struct ntlm_auth_state *state,
  81                                         char *buf, int length);
  82
  83 static void manage_client_ntlmssp_request (struct ntlm_auth_state *state,
  84                                         char *buf, int length);
  85
  86 static void manage_gss_spnego_request (struct ntlm_auth_state *state,
  87                                         char *buf, int length);
  88
  89 static void manage_gss_spnego_client_request (struct ntlm_auth_state *state,
  90                                         char *buf, int length);
  91
  92 static void manage_ntlm_server_1_request (struct ntlm_auth_state *state,
  93                                         char *buf, int length);
  94
  95 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
  96                                         char *buf, int length);
  97
  98 static const struct {
  99         enum stdio_helper_mode mode;
 100         const char *name;
 101         stdio_helper_function fn;
 102 } stdio_helper_protocols[] = {
 103         { SQUID_2_4_BASIC, "squid-2.4-basic", manage_squid_basic_request},
 104         { SQUID_2_5_BASIC, "squid-2.5-basic", manage_squid_basic_request},
 105         { SQUID_2_5_NTLMSSP, "squid-2.5-ntlmssp", manage_squid_ntlmssp_request},
 106         { NTLMSSP_CLIENT_1, "ntlmssp-client-1", manage_client_ntlmssp_request},
 107         { GSS_SPNEGO, "gss-spnego", manage_gss_spnego_request},
 108         { GSS_SPNEGO_CLIENT, "gss-spnego-client", manage_gss_spnego_client_request},
 109         { NTLM_SERVER_1, "ntlm-server-1", manage_ntlm_server_1_request},
 110         { NTLM_CHANGE_PASSWORD_1, "ntlm-change-password-1", manage_ntlm_change_password_1_request},
 111         { NUM_HELPER_MODES, NULL, NULL}
 112 };
 113
 114 const char *opt_username;
 115 const char *opt_domain;
 116 const char *opt_workstation;
 117 const char *opt_password;
 118 static DATA_BLOB opt_challenge;
 119 static DATA_BLOB opt_lm_response;
 120 static DATA_BLOB opt_nt_response;
 121 static int request_lm_key;
 122 static int request_user_session_key;
 123 static int use_cached_creds;
 124
 125 static const char *require_membership_of;
 126 static const char *require_membership_of_sid;
 127
 128 static char winbind_separator(void)
 129 {
 130         struct winbindd_response response;
 131         static bool got_sep;
 132         static char sep;
 133
 134         if (got_sep)
 135                 return sep;
 136
 137         ZERO_STRUCT(response);
 138
 139         /* Send off request */
 140
 141         if (winbindd_request_response(WINBINDD_INFO, NULL, &response) !=
 142             NSS_STATUS_SUCCESS) {
 143                 d_printf("could not obtain winbind separator!\n");
 144                 return *lp_winbind_separator();
 145         }
 146
 147         sep = response.data.info.winbind_separator;
 148         got_sep = True;
 149
 150         if (!sep) {
 151                 d_printf("winbind separator was NULL!\n");
 152                 return *lp_winbind_separator();
 153         }
 154
 155         return sep;
 156 }
 157
 158 const char *get_winbind_domain(void)
 159 {
 160         struct winbindd_response response;
 161
 162         static fstring winbind_domain;
 163         if (*winbind_domain) {
 164                 return winbind_domain;
 165         }
 166
 167         ZERO_STRUCT(response);
 168
 169         /* Send off request */
 170
 171         if (winbindd_request_response(WINBINDD_DOMAIN_NAME, NULL, &response) !=
 172             NSS_STATUS_SUCCESS) {
 173                 DEBUG(0, ("could not obtain winbind domain name!\n"));
 174                 return lp_workgroup();
 175         }
 176
 177         fstrcpy(winbind_domain, response.data.domain_name);
 178
 179         return winbind_domain;
 180
 181 }
 182
 183 const char *get_winbind_netbios_name(void)
 184 {
 185         struct winbindd_response response;
 186
 187         static fstring winbind_netbios_name;
 188
 189         if (*winbind_netbios_name) {
 190                 return winbind_netbios_name;
 191         }
 192
 193         ZERO_STRUCT(response);
 194
 195         /* Send off request */
 196
 197         if (winbindd_request_response(WINBINDD_NETBIOS_NAME, NULL, &response) !=
 198             NSS_STATUS_SUCCESS) {
 199                 DEBUG(0, ("could not obtain winbind netbios name!\n"));
 200                 return global_myname();
 201         }
 202
 203         fstrcpy(winbind_netbios_name, response.data.netbios_name);
 204
 205         return winbind_netbios_name;
 206
 207 }
 208
 209 DATA_BLOB get_challenge(void)
 210 {
 211         static DATA_BLOB chal;
 212         if (opt_challenge.length)
 213                 return opt_challenge;
 214
 215         chal = data_blob(NULL, 8);
 216
 217         generate_random_buffer(chal.data, chal.length);
 218         return chal;
 219 }
 220
 221 /* Copy of parse_domain_user from winbindd_util.c.  Parse a string of the
 222    form DOMAIN/user into a domain and a user */
 223
 224 static bool parse_ntlm_auth_domain_user(const char *domuser, fstring domain,
 225                                      fstring user)
 226 {
 227
 228         char *p = strchr(domuser,winbind_separator());
 229
 230         if (!p) {
 231                 return False;
 232         }
 233
 234         fstrcpy(user, p+1);
 235         fstrcpy(domain, domuser);
 236         domain[PTR_DIFF(p, domuser)] = 0;
 237         strupper_m(domain);
 238
 239         return True;
 240 }
 241
 242 static bool get_require_membership_sid(void) {
 243         struct winbindd_request request;
 244         struct winbindd_response response;
 245
 246         if (!require_membership_of) {
 247                 return True;
 248         }
 249
 250         if (require_membership_of_sid) {
 251                 return True;
 252         }
 253
 254         /* Otherwise, ask winbindd for the name->sid request */
 255
 256         ZERO_STRUCT(request);
 257         ZERO_STRUCT(response);
 258
 259         if (!parse_ntlm_auth_domain_user(require_membership_of,
 260                                          request.data.name.dom_name,
 261                                          request.data.name.name)) {
 262                 DEBUG(0, ("Could not parse %s into seperate domain/name parts!\n",
 263                           require_membership_of));
 264                 return False;
 265         }
 266
 267         if (winbindd_request_response(WINBINDD_LOOKUPNAME, &request, &response) !=
 268             NSS_STATUS_SUCCESS) {
 269                 DEBUG(0, ("Winbindd lookupname failed to resolve %s into a SID!\n",
 270                           require_membership_of));
 271                 return False;
 272         }
 273
 274         require_membership_of_sid = SMB_STRDUP(response.data.sid.sid);
 275
 276         if (require_membership_of_sid)
 277                 return True;
 278
 279         return False;
 280 }
 281 /* Authenticate a user with a plaintext password */
 282
 283 static bool check_plaintext_auth(const char *user, const char *pass,
 284                                  bool stdout_diagnostics)
 285 {
 286         struct winbindd_request request;
 287         struct winbindd_response response;
 288         NSS_STATUS result;
 289
 290         if (!get_require_membership_sid()) {
 291                 return False;
 292         }
 293
 294         /* Send off request */
 295
 296         ZERO_STRUCT(request);
 297         ZERO_STRUCT(response);
 298
 299         fstrcpy(request.data.auth.user, user);
 300         fstrcpy(request.data.auth.pass, pass);
 301         if (require_membership_of_sid) {
 302                 strlcpy(request.data.auth.require_membership_of_sid,
 303                         require_membership_of_sid,
 304                         sizeof(request.data.auth.require_membership_of_sid));
 305         }
 306
 307         result = winbindd_request_response(WINBINDD_PAM_AUTH, &request, &response);
 308
 309         /* Display response */
 310
 311         if (stdout_diagnostics) {
 312                 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 313                         d_printf("Reading winbind reply failed! (0x01)\n");
 314                 }
 315
 316                 d_printf("%s: %s (0x%x)\n",
 317                          response.data.auth.nt_status_string,
 318                          response.data.auth.error_string,
 319                          response.data.auth.nt_status);
 320         } else {
 321                 if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 322                         DEBUG(1, ("Reading winbind reply failed! (0x01)\n"));
 323                 }
 324
 325                 DEBUG(3, ("%s: %s (0x%x)\n",
 326                           response.data.auth.nt_status_string,
 327                           response.data.auth.error_string,
 328                           response.data.auth.nt_status));
 329         }
 330
 331         return (result == NSS_STATUS_SUCCESS);
 332 }
 333
 334 /* authenticate a user with an encrypted username/password */
 335
 336 NTSTATUS contact_winbind_auth_crap(const char *username,
 337                                    const char *domain,
 338                                    const char *workstation,
 339                                    const DATA_BLOB *challenge,
 340                                    const DATA_BLOB *lm_response,
 341                                    const DATA_BLOB *nt_response,
 342                                    uint32 flags,
 343                                    uint8 lm_key[8],
 344                                    uint8 user_session_key[16],
 345                                    char **error_string,
 346                                    char **unix_name)
 347 {
 348         NTSTATUS nt_status;
 349         NSS_STATUS result;
 350         struct winbindd_request request;
 351         struct winbindd_response response;
 352
 353         if (!get_require_membership_sid()) {
 354                 return NT_STATUS_INVALID_PARAMETER;
 355         }
 356
 357         ZERO_STRUCT(request);
 358         ZERO_STRUCT(response);
 359
 360         request.flags = flags;
 361
 362         request.data.auth_crap.logon_parameters = MSV1_0_ALLOW_WORKSTATION_TRUST_ACCOUNT | MSV1_0_ALLOW_SERVER_TRUST_ACCOUNT;
 363
 364         if (require_membership_of_sid)
 365                 fstrcpy(request.data.auth_crap.require_membership_of_sid, require_membership_of_sid);
 366
 367         fstrcpy(request.data.auth_crap.user, username);
 368         fstrcpy(request.data.auth_crap.domain, domain);
 369
 370         fstrcpy(request.data.auth_crap.workstation,
 371                 workstation);
 372
 373         memcpy(request.data.auth_crap.chal, challenge->data, MIN(challenge->length, 8));
 374
 375         if (lm_response && lm_response->length) {
 376                 memcpy(request.data.auth_crap.lm_resp,
 377                        lm_response->data,
 378                        MIN(lm_response->length, sizeof(request.data.auth_crap.lm_resp)));
 379                 request.data.auth_crap.lm_resp_len = lm_response->length;
 380         }
 381
 382         if (nt_response && nt_response->length) {
 383                 if (nt_response->length > sizeof(request.data.auth_crap.nt_resp)) {
 384                         request.flags = request.flags | WBFLAG_BIG_NTLMV2_BLOB;
 385                         request.extra_len = nt_response->length;
 386                         request.extra_data.data = SMB_MALLOC_ARRAY(char, request.extra_len);
 387                         if (request.extra_data.data == NULL) {
 388                                 return NT_STATUS_NO_MEMORY;
 389                         }
 390                         memcpy(request.extra_data.data, nt_response->data,
 391                                nt_response->length);
 392
 393                 } else {
 394                         memcpy(request.data.auth_crap.nt_resp,
 395                                nt_response->data, nt_response->length);
 396                 }
 397                 request.data.auth_crap.nt_resp_len = nt_response->length;
 398         }
 399
 400         result = winbindd_request_response(WINBINDD_PAM_AUTH_CRAP, &request, &response);
 401         SAFE_FREE(request.extra_data.data);
 402
 403         /* Display response */
 404
 405         if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0)) {
 406                 nt_status = NT_STATUS_UNSUCCESSFUL;
 407                 if (error_string)
 408                         *error_string = smb_xstrdup("Reading winbind reply failed!");
 409                 winbindd_free_response(&response);
 410                 return nt_status;
 411         }
 412
 413         nt_status = (NT_STATUS(response.data.auth.nt_status));
 414         if (!NT_STATUS_IS_OK(nt_status)) {
 415                 if (error_string)
 416                         *error_string = smb_xstrdup(response.data.auth.error_string);
 417                 winbindd_free_response(&response);
 418                 return nt_status;
 419         }
 420
 421         if ((flags & WBFLAG_PAM_LMKEY) && lm_key) {
 422                 memcpy(lm_key, response.data.auth.first_8_lm_hash,
 423                        sizeof(response.data.auth.first_8_lm_hash));
 424         }
 425         if ((flags & WBFLAG_PAM_USER_SESSION_KEY) && user_session_key) {
 426                 memcpy(user_session_key, response.data.auth.user_session_key,
 427                         sizeof(response.data.auth.user_session_key));
 428         }
 429
 430         if (flags & WBFLAG_PAM_UNIX_NAME) {
 431                 *unix_name = SMB_STRDUP(response.data.auth.unix_username);
 432                 if (!*unix_name) {
 433                         winbindd_free_response(&response);
 434                         return NT_STATUS_NO_MEMORY;
 435                 }
 436         }
 437
 438         winbindd_free_response(&response);
 439         return nt_status;
 440 }
 441
 442 /* contact server to change user password using auth crap */
 443 static NTSTATUS contact_winbind_change_pswd_auth_crap(const char *username,
 444                                                       const char *domain,
 445                                                       const DATA_BLOB new_nt_pswd,
 446                                                       const DATA_BLOB old_nt_hash_enc,
 447                                                       const DATA_BLOB new_lm_pswd,
 448                                                       const DATA_BLOB old_lm_hash_enc,
 449                                                       char  **error_string)
 450 {
 451         NTSTATUS nt_status;
 452         NSS_STATUS result;
 453         struct winbindd_request request;
 454         struct winbindd_response response;
 455
 456         if (!get_require_membership_sid())
 457         {
 458                 if(error_string)
 459                         *error_string = smb_xstrdup("Can't get membership sid.");
 460                 return NT_STATUS_INVALID_PARAMETER;
 461         }
 462
 463         ZERO_STRUCT(request);
 464         ZERO_STRUCT(response);
 465
 466         if(username != NULL)
 467                 fstrcpy(request.data.chng_pswd_auth_crap.user, username);
 468         if(domain != NULL)
 469                 fstrcpy(request.data.chng_pswd_auth_crap.domain,domain);
 470
 471         if(new_nt_pswd.length)
 472         {
 473                 memcpy(request.data.chng_pswd_auth_crap.new_nt_pswd, new_nt_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_nt_pswd));
 474                 request.data.chng_pswd_auth_crap.new_nt_pswd_len = new_nt_pswd.length;
 475         }
 476
 477         if(old_nt_hash_enc.length)
 478         {
 479                 memcpy(request.data.chng_pswd_auth_crap.old_nt_hash_enc, old_nt_hash_enc.data, sizeof(request.data.chng_pswd_auth_crap.old_nt_hash_enc));
 480                 request.data.chng_pswd_auth_crap.old_nt_hash_enc_len = old_nt_hash_enc.length;
 481         }
 482
 483         if(new_lm_pswd.length)
 484         {
 485                 memcpy(request.data.chng_pswd_auth_crap.new_lm_pswd, new_lm_pswd.data, sizeof(request.data.chng_pswd_auth_crap.new_lm_pswd));
 486                 request.data.chng_pswd_auth_crap.new_lm_pswd_len = new_lm_pswd.length;
 487         }
 488
 489         if(old_lm_hash_enc.length)
 490         {
 491                 memcpy(request.data.chng_pswd_auth_crap.old_lm_hash_enc, old_lm_hash_enc.data, sizeof(request.data.chng_pswd_auth_crap.old_lm_hash_enc));
 492                 request.data.chng_pswd_auth_crap.old_lm_hash_enc_len = old_lm_hash_enc.length;
 493         }
 494
 495         result = winbindd_request_response(WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP, &request, &response);
 496
 497         /* Display response */
 498
 499         if ((result != NSS_STATUS_SUCCESS) && (response.data.auth.nt_status == 0))
 500         {
 501                 nt_status = NT_STATUS_UNSUCCESSFUL;
 502                 if (error_string)
 503                         *error_string = smb_xstrdup("Reading winbind reply failed!");
 504                 winbindd_free_response(&response);
 505                 return nt_status;
 506         }
 507
 508         nt_status = (NT_STATUS(response.data.auth.nt_status));
 509         if (!NT_STATUS_IS_OK(nt_status))
 510         {
 511                 if (error_string)
 512                         *error_string = smb_xstrdup(response.data.auth.error_string);
 513                 winbindd_free_response(&response);
 514                 return nt_status;
 515         }
 516
 517         winbindd_free_response(&response);
 518
 519     return nt_status;
 520 }
 521
 522 static NTSTATUS winbind_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
 523 {
 524         static const char zeros[16] = { 0, };
 525         NTSTATUS nt_status;
 526         char *error_string;
 527         uint8 lm_key[8];
 528         uint8 user_sess_key[16];
 529         char *unix_name = NULL;
 530
 531         nt_status = contact_winbind_auth_crap(ntlmssp_state->user, ntlmssp_state->domain,
 532                                               ntlmssp_state->workstation,
 533                                               &ntlmssp_state->chal,
 534                                               &ntlmssp_state->lm_resp,
 535                                               &ntlmssp_state->nt_resp,
 536                                               WBFLAG_PAM_LMKEY | WBFLAG_PAM_USER_SESSION_KEY | WBFLAG_PAM_UNIX_NAME,
 537                                               lm_key, user_sess_key,
 538                                               &error_string, &unix_name);
 539
 540         if (NT_STATUS_IS_OK(nt_status)) {
 541                 if (memcmp(lm_key, zeros, 8) != 0) {
 542                         *lm_session_key = data_blob(NULL, 16);
 543                         memcpy(lm_session_key->data, lm_key, 8);
 544                         memset(lm_session_key->data+8, '\0', 8);
 545                 }
 546
 547                 if (memcmp(user_sess_key, zeros, 16) != 0) {
 548                         *user_session_key = data_blob(user_sess_key, 16);
 549                 }
 550                 ntlmssp_state->auth_context = talloc_strdup(ntlmssp_state,
 551                                                             unix_name);
 552         } else {
 553                 DEBUG(NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED) ? 0 : 3,
 554                       ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
 555                        ntlmssp_state->domain, ntlmssp_state->user,
 556                        ntlmssp_state->workstation,
 557                        error_string ? error_string : "unknown error (NULL)"));
 558                 ntlmssp_state->auth_context = NULL;
 559         }
 560
 561         SAFE_FREE(unix_name);
 562         return nt_status;
 563 }
 564
 565 static NTSTATUS local_pw_check(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *user_session_key, DATA_BLOB *lm_session_key)
 566 {
 567         NTSTATUS nt_status;
 568         uint8 lm_pw[16], nt_pw[16];
 569
 570         nt_lm_owf_gen (opt_password, nt_pw, lm_pw);
 571
 572         nt_status = ntlm_password_check(ntlmssp_state,
 573                                         &ntlmssp_state->chal,
 574                                         &ntlmssp_state->lm_resp,
 575                                         &ntlmssp_state->nt_resp,
 576                                         NULL, NULL,
 577                                         ntlmssp_state->user,
 578                                         ntlmssp_state->user,
 579                                         ntlmssp_state->domain,
 580                                         lm_pw, nt_pw, user_session_key, lm_session_key);
 581
 582         if (NT_STATUS_IS_OK(nt_status)) {
 583                 ntlmssp_state->auth_context = talloc_asprintf(ntlmssp_state,
 584                                                               "%s%c%s", ntlmssp_state->domain,
 585                                                               *lp_winbind_separator(),
 586                                                               ntlmssp_state->user);
 587         } else {
 588                 DEBUG(3, ("Login for user [%s]\\[%s]@[%s] failed due to [%s]\n",
 589                           ntlmssp_state->domain, ntlmssp_state->user, ntlmssp_state->workstation,
 590                           nt_errstr(nt_status)));
 591                 ntlmssp_state->auth_context = NULL;
 592         }
 593         return nt_status;
 594 }
 595
 596 static NTSTATUS ntlm_auth_start_ntlmssp_client(NTLMSSP_STATE **client_ntlmssp_state)
 597 {
 598         NTSTATUS status;
 599         if ( (opt_username == NULL) || (opt_domain == NULL) ) {
 600                 status = NT_STATUS_UNSUCCESSFUL;
 601                 DEBUG(1, ("Need username and domain for NTLMSSP\n"));
 602                 return NT_STATUS_INVALID_PARAMETER;
 603         }
 604
 605         status = ntlmssp_client_start(client_ntlmssp_state);
 606
 607         if (!NT_STATUS_IS_OK(status)) {
 608                 DEBUG(1, ("Could not start NTLMSSP client: %s\n",
 609                           nt_errstr(status)));
 610                 ntlmssp_end(client_ntlmssp_state);
 611                 return status;
 612         }
 613
 614         status = ntlmssp_set_username(*client_ntlmssp_state, opt_username);
 615
 616         if (!NT_STATUS_IS_OK(status)) {
 617                 DEBUG(1, ("Could not set username: %s\n",
 618                           nt_errstr(status)));
 619                 ntlmssp_end(client_ntlmssp_state);
 620                 return status;
 621         }
 622
 623         status = ntlmssp_set_domain(*client_ntlmssp_state, opt_domain);
 624
 625         if (!NT_STATUS_IS_OK(status)) {
 626                 DEBUG(1, ("Could not set domain: %s\n",
 627                           nt_errstr(status)));
 628                 ntlmssp_end(client_ntlmssp_state);
 629                 return status;
 630         }
 631
 632         if (opt_password) {
 633                 status = ntlmssp_set_password(*client_ntlmssp_state, opt_password);
 634
 635                 if (!NT_STATUS_IS_OK(status)) {
 636                         DEBUG(1, ("Could not set password: %s\n",
 637                                   nt_errstr(status)));
 638                         ntlmssp_end(client_ntlmssp_state);
 639                         return status;
 640                 }
 641         }
 642
 643         return NT_STATUS_OK;
 644 }
 645
 646 static NTSTATUS ntlm_auth_start_ntlmssp_server(NTLMSSP_STATE **ntlmssp_state)
 647 {
 648         NTSTATUS status = ntlmssp_server_start(ntlmssp_state);
 649
 650         if (!NT_STATUS_IS_OK(status)) {
 651                 DEBUG(1, ("Could not start NTLMSSP server: %s\n",
 652                           nt_errstr(status)));
 653                 return status;
 654         }
 655
 656         /* Have we been given a local password, or should we ask winbind? */
 657         if (opt_password) {
 658                 (*ntlmssp_state)->check_password = local_pw_check;
 659                 (*ntlmssp_state)->get_domain = lp_workgroup;
 660                 (*ntlmssp_state)->get_global_myname = global_myname;
 661         } else {
 662                 (*ntlmssp_state)->check_password = winbind_pw_check;
 663                 (*ntlmssp_state)->get_domain = get_winbind_domain;
 664                 (*ntlmssp_state)->get_global_myname = get_winbind_netbios_name;
 665         }
 666         return NT_STATUS_OK;
 667 }
 668
 669 /*******************************************************************
 670  Used by firefox to drive NTLM auth to IIS servers.
 671 *******************************************************************/
 672
 673 static NTSTATUS do_ccache_ntlm_auth(DATA_BLOB initial_msg, DATA_BLOB challenge_msg,
 674                                 DATA_BLOB *reply)
 675 {
 676         struct winbindd_request wb_request;
 677         struct winbindd_response wb_response;
 678         NSS_STATUS result;
 679
 680         /* get winbindd to do the ntlmssp step on our behalf */
 681         ZERO_STRUCT(wb_request);
 682         ZERO_STRUCT(wb_response);
 683
 684         fstr_sprintf(wb_request.data.ccache_ntlm_auth.user,
 685                 "%s%c%s", opt_domain, winbind_separator(), opt_username);
 686         wb_request.data.ccache_ntlm_auth.uid = geteuid();
 687         wb_request.data.ccache_ntlm_auth.initial_blob_len = initial_msg.length;
 688         wb_request.data.ccache_ntlm_auth.challenge_blob_len = challenge_msg.length;
 689         wb_request.extra_len = initial_msg.length + challenge_msg.length;
 690
 691         if (wb_request.extra_len > 0) {
 692                 wb_request.extra_data.data = SMB_MALLOC_ARRAY(char, wb_request.extra_len);
 693                 if (wb_request.extra_data.data == NULL) {
 694                         return NT_STATUS_NO_MEMORY;
 695                 }
 696
 697                 memcpy(wb_request.extra_data.data, initial_msg.data, initial_msg.length);
 698                 memcpy(wb_request.extra_data.data + initial_msg.length,
 699                         challenge_msg.data, challenge_msg.length);
 700         }
 701
 702         result = winbindd_request_response(WINBINDD_CCACHE_NTLMAUTH, &wb_request, &wb_response);
 703         SAFE_FREE(wb_request.extra_data.data);
 704
 705         if (result != NSS_STATUS_SUCCESS) {
 706                 winbindd_free_response(&wb_response);
 707                 return NT_STATUS_UNSUCCESSFUL;
 708         }
 709
 710         if (reply) {
 711                 *reply = data_blob(wb_response.extra_data.data,
 712                                 wb_response.data.ccache_ntlm_auth.auth_blob_len);
 713                 if (wb_response.data.ccache_ntlm_auth.auth_blob_len > 0 &&
 714                                 reply->data == NULL) {
 715                         winbindd_free_response(&wb_response);
 716                         return NT_STATUS_NO_MEMORY;
 717                 }
 718         }
 719
 720         winbindd_free_response(&wb_response);
 721         return NT_STATUS_MORE_PROCESSING_REQUIRED;
 722 }
 723
 724 static void manage_squid_ntlmssp_request(struct ntlm_auth_state *state,
 725                                                 char *buf, int length)
 726 {
 727         DATA_BLOB request, reply;
 728         NTSTATUS nt_status;
 729
 730         if (strlen(buf) < 2) {
 731                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 732                 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
 733                 return;
 734         }
 735
 736         if (strlen(buf) > 3) {
 737                 if(strncmp(buf, "SF ", 3) == 0){
 738                         DEBUG(10, ("Setting flags to negotioate\n"));
 739                         TALLOC_FREE(state->want_feature_list);
 740                         state->want_feature_list = talloc_strdup(state->mem_ctx,
 741                                         buf+3);
 742                         x_fprintf(x_stdout, "OK\n");
 743                         return;
 744                 }
 745                 request = base64_decode_data_blob(buf + 3);
 746         } else {
 747                 request = data_blob_null;
 748         }
 749
 750         if ((strncmp(buf, "PW ", 3) == 0)) {
 751                 /* The calling application wants us to use a local password
 752                  * (rather than winbindd) */
 753
 754                 opt_password = SMB_STRNDUP((const char *)request.data,
 755                                 request.length);
 756
 757                 if (opt_password == NULL) {
 758                         DEBUG(1, ("Out of memory\n"));
 759                         x_fprintf(x_stdout, "BH Out of memory\n");
 760                         data_blob_free(&request);
 761                         return;
 762                 }
 763
 764                 x_fprintf(x_stdout, "OK\n");
 765                 data_blob_free(&request);
 766                 return;
 767         }
 768
 769         if (strncmp(buf, "YR", 2) == 0) {
 770                 if (state->ntlmssp_state)
 771                         ntlmssp_end(&state->ntlmssp_state);
 772                 state->svr_state = SERVER_INITIAL;
 773         } else if (strncmp(buf, "KK", 2) == 0) {
 774                 /* No special preprocessing required */
 775         } else if (strncmp(buf, "GF", 2) == 0) {
 776                 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
 777
 778                 if (state->svr_state == SERVER_FINISHED) {
 779                         x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
 780                 }
 781                 else {
 782                         x_fprintf(x_stdout, "BH\n");
 783                 }
 784                 data_blob_free(&request);
 785                 return;
 786         } else if (strncmp(buf, "GK", 2) == 0) {
 787                 DEBUG(10, ("Requested NTLMSSP session key\n"));
 788                 if(state->have_session_key) {
 789                         char *key64 = base64_encode_data_blob(state->mem_ctx,
 790                                         state->session_key);
 791                         x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
 792                         TALLOC_FREE(key64);
 793                 } else {
 794                         x_fprintf(x_stdout, "BH\n");
 795                 }
 796
 797                 data_blob_free(&request);
 798                 return;
 799         } else {
 800                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 801                 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
 802                 return;
 803         }
 804
 805         if (!state->ntlmssp_state) {
 806                 nt_status = ntlm_auth_start_ntlmssp_server(
 807                                 &state->ntlmssp_state);
 808                 if (!NT_STATUS_IS_OK(nt_status)) {
 809                         x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
 810                         return;
 811                 }
 812                 ntlmssp_want_feature_list(state->ntlmssp_state,
 813                                 state->want_feature_list);
 814         }
 815
 816         DEBUG(10, ("got NTLMSSP packet:\n"));
 817         dump_data(10, request.data, request.length);
 818
 819         nt_status = ntlmssp_update(state->ntlmssp_state, request, &reply);
 820
 821         if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 822                 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
 823                                 reply);
 824                 x_fprintf(x_stdout, "TT %s\n", reply_base64);
 825                 TALLOC_FREE(reply_base64);
 826                 data_blob_free(&reply);
 827                 state->svr_state = SERVER_CHALLENGE;
 828                 DEBUG(10, ("NTLMSSP challenge\n"));
 829         } else if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCESS_DENIED)) {
 830                 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
 831                 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
 832
 833                 ntlmssp_end(&state->ntlmssp_state);
 834         } else if (!NT_STATUS_IS_OK(nt_status)) {
 835                 x_fprintf(x_stdout, "NA %s\n", nt_errstr(nt_status));
 836                 DEBUG(10, ("NTLMSSP %s\n", nt_errstr(nt_status)));
 837         } else {
 838                 x_fprintf(x_stdout, "AF %s\n",
 839                                 (char *)state->ntlmssp_state->auth_context);
 840                 DEBUG(10, ("NTLMSSP OK!\n"));
 841
 842                 if(state->have_session_key)
 843                         data_blob_free(&state->session_key);
 844                 state->session_key = data_blob(
 845                                 state->ntlmssp_state->session_key.data,
 846                                 state->ntlmssp_state->session_key.length);
 847                 state->neg_flags = state->ntlmssp_state->neg_flags;
 848                 state->have_session_key = true;
 849                 state->svr_state = SERVER_FINISHED;
 850         }
 851
 852         data_blob_free(&request);
 853 }
 854
 855 static void manage_client_ntlmssp_request(struct ntlm_auth_state *state,
 856                                                 char *buf, int length)
 857 {
 858         DATA_BLOB request, reply;
 859         NTSTATUS nt_status;
 860
 861         if (!opt_username || !*opt_username) {
 862                 x_fprintf(x_stderr, "username must be specified!\n\n");
 863                 exit(1);
 864         }
 865
 866         if (strlen(buf) < 2) {
 867                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 868                 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
 869                 return;
 870         }
 871
 872         if (strlen(buf) > 3) {
 873                 if(strncmp(buf, "SF ", 3) == 0) {
 874                         DEBUG(10, ("Looking for flags to negotiate\n"));
 875                         talloc_free(state->want_feature_list);
 876                         state->want_feature_list = talloc_strdup(state->mem_ctx,
 877                                         buf+3);
 878                         x_fprintf(x_stdout, "OK\n");
 879                         return;
 880                 }
 881                 request = base64_decode_data_blob(buf + 3);
 882         } else {
 883                 request = data_blob_null;
 884         }
 885
 886         if (strncmp(buf, "PW ", 3) == 0) {
 887                 /* We asked for a password and obviously got it :-) */
 888
 889                 opt_password = SMB_STRNDUP((const char *)request.data,
 890                                 request.length);
 891
 892                 if (opt_password == NULL) {
 893                         DEBUG(1, ("Out of memory\n"));
 894                         x_fprintf(x_stdout, "BH Out of memory\n");
 895                         data_blob_free(&request);
 896                         return;
 897                 }
 898
 899                 x_fprintf(x_stdout, "OK\n");
 900                 data_blob_free(&request);
 901                 return;
 902         }
 903
 904         if (!state->ntlmssp_state && use_cached_creds) {
 905                 /* check whether cached credentials are usable. */
 906                 DATA_BLOB empty_blob = data_blob_null;
 907
 908                 nt_status = do_ccache_ntlm_auth(empty_blob, empty_blob, NULL);
 909                 if (!NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 910                         /* failed to use cached creds */
 911                         use_cached_creds = False;
 912                 }
 913         }
 914
 915         if (opt_password == NULL && !use_cached_creds) {
 916                 /* Request a password from the calling process.  After
 917                    sending it, the calling process should retry asking for the
 918                    negotiate. */
 919
 920                 DEBUG(10, ("Requesting password\n"));
 921                 x_fprintf(x_stdout, "PW\n");
 922                 return;
 923         }
 924
 925         if (strncmp(buf, "YR", 2) == 0) {
 926                 if (state->ntlmssp_state)
 927                         ntlmssp_end(&state->ntlmssp_state);
 928                 state->cli_state = CLIENT_INITIAL;
 929         } else if (strncmp(buf, "TT", 2) == 0) {
 930                 /* No special preprocessing required */
 931         } else if (strncmp(buf, "GF", 2) == 0) {
 932                 DEBUG(10, ("Requested negotiated NTLMSSP flags\n"));
 933
 934                 if(state->cli_state == CLIENT_FINISHED) {
 935                         x_fprintf(x_stdout, "GF 0x%08x\n", state->neg_flags);
 936                 }
 937                 else {
 938                         x_fprintf(x_stdout, "BH\n");
 939                 }
 940
 941                 data_blob_free(&request);
 942                 return;
 943         } else if (strncmp(buf, "GK", 2) == 0 ) {
 944                 DEBUG(10, ("Requested session key\n"));
 945
 946                 if(state->cli_state == CLIENT_FINISHED) {
 947                         char *key64 = base64_encode_data_blob(state->mem_ctx,
 948                                         state->session_key);
 949                         x_fprintf(x_stdout, "GK %s\n", key64?key64:"<NULL>");
 950                         TALLOC_FREE(key64);
 951                 }
 952                 else {
 953                         x_fprintf(x_stdout, "BH\n");
 954                 }
 955
 956                 data_blob_free(&request);
 957                 return;
 958         } else {
 959                 DEBUG(1, ("NTLMSSP query [%s] invalid", buf));
 960                 x_fprintf(x_stdout, "BH NTLMSSP query invalid\n");
 961                 return;
 962         }
 963
 964         if (!state->ntlmssp_state) {
 965                 nt_status = ntlm_auth_start_ntlmssp_client(
 966                                 &state->ntlmssp_state);
 967                 if (!NT_STATUS_IS_OK(nt_status)) {
 968                         x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
 969                         return;
 970                 }
 971                 ntlmssp_want_feature_list(state->ntlmssp_state,
 972                                 state->want_feature_list);
 973                 state->initial_message = data_blob_null;
 974         }
 975
 976         DEBUG(10, ("got NTLMSSP packet:\n"));
 977         dump_data(10, request.data, request.length);
 978
 979         if (use_cached_creds && !opt_password &&
 980                         (state->cli_state == CLIENT_RESPONSE)) {
 981                 nt_status = do_ccache_ntlm_auth(state->initial_message, request,
 982                                 &reply);
 983         } else {
 984                 nt_status = ntlmssp_update(state->ntlmssp_state, request,
 985                                 &reply);
 986         }
 987
 988         if (NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
 989                 char *reply_base64 = base64_encode_data_blob(state->mem_ctx,
 990                                 reply);
 991                 if (state->cli_state == CLIENT_INITIAL) {
 992                         x_fprintf(x_stdout, "YR %s\n", reply_base64);
 993                         state->initial_message = reply;
 994                         state->cli_state = CLIENT_RESPONSE;
 995                 } else {
 996                         x_fprintf(x_stdout, "KK %s\n", reply_base64);
 997                         data_blob_free(&reply);
 998                 }
 999                 TALLOC_FREE(reply_base64);
1000                 DEBUG(10, ("NTLMSSP challenge\n"));
1001         } else if (NT_STATUS_IS_OK(nt_status)) {
1002                 char *reply_base64 = base64_encode_data_blob(talloc_tos(),
1003                                 reply);
1004                 x_fprintf(x_stdout, "AF %s\n", reply_base64);
1005                 TALLOC_FREE(reply_base64);
1006
1007                 if(state->have_session_key)
1008                         data_blob_free(&state->session_key);
1009
1010                 state->session_key = data_blob(
1011                                 state->ntlmssp_state->session_key.data,
1012                                 state->ntlmssp_state->session_key.length);
1013                 state->neg_flags = state->ntlmssp_state->neg_flags;
1014                 state->have_session_key = true;
1015
1016                 DEBUG(10, ("NTLMSSP OK!\n"));
1017                 state->cli_state = CLIENT_FINISHED;
1018                 if (state->ntlmssp_state)
1019                         ntlmssp_end(&state->ntlmssp_state);
1020         } else {
1021                 x_fprintf(x_stdout, "BH %s\n", nt_errstr(nt_status));
1022                 DEBUG(0, ("NTLMSSP BH: %s\n", nt_errstr(nt_status)));
1023                 state->cli_state = CLIENT_ERROR;
1024                 if (state->ntlmssp_state)
1025                         ntlmssp_end(&state->ntlmssp_state);
1026         }
1027
1028         data_blob_free(&request);
1029 }
1030
1031 static void manage_squid_basic_request(struct ntlm_auth_state *state,
1032                                         char *buf, int length)
1033 {
1034         char *user, *pass;
1035         user=buf;
1036
1037         pass=(char *)memchr(buf,' ',length);
1038         if (!pass) {
1039                 DEBUG(2, ("Password not found. Denying access\n"));
1040                 x_fprintf(x_stdout, "ERR\n");
1041                 return;
1042         }
1043         *pass='\0';
1044         pass++;
1045
1046         if (state->helper_mode == SQUID_2_5_BASIC) {
1047                 rfc1738_unescape(user);
1048                 rfc1738_unescape(pass);
1049         }
1050
1051         if (check_plaintext_auth(user, pass, False)) {
1052                 x_fprintf(x_stdout, "OK\n");
1053         } else {
1054                 x_fprintf(x_stdout, "ERR\n");
1055         }
1056 }
1057
1058 static void offer_gss_spnego_mechs(void) {
1059
1060         DATA_BLOB token;
1061         SPNEGO_DATA spnego;
1062         ssize_t len;
1063         char *reply_base64;
1064         TALLOC_CTX *ctx = talloc_tos();
1065         char *principal;
1066         char *myname_lower;
1067
1068         ZERO_STRUCT(spnego);
1069
1070         myname_lower = talloc_strdup(ctx, global_myname());
1071         if (!myname_lower) {
1072                 return;
1073         }
1074         strlower_m(myname_lower);
1075
1076         principal = talloc_asprintf(ctx, "%s$@%s", myname_lower, lp_realm());
1077         if (!principal) {
1078                 return;
1079         }
1080
1081         /* Server negTokenInit (mech offerings) */
1082         spnego.type = SPNEGO_NEG_TOKEN_INIT;
1083         spnego.negTokenInit.mechTypes = SMB_XMALLOC_ARRAY(const char *, 2);
1084 #ifdef HAVE_KRB5
1085         spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_KERBEROS5_OLD);
1086         spnego.negTokenInit.mechTypes[1] = smb_xstrdup(OID_NTLMSSP);
1087         spnego.negTokenInit.mechTypes[2] = NULL;
1088 #else
1089         spnego.negTokenInit.mechTypes[0] = smb_xstrdup(OID_NTLMSSP);
1090         spnego.negTokenInit.mechTypes[1] = NULL;
1091 #endif
1092
1093
1094         spnego.negTokenInit.mechListMIC = data_blob(principal,
1095                                                     strlen(principal));
1096
1097         len = write_spnego_data(&token, &spnego);
1098         free_spnego_data(&spnego);
1099
1100         if (len == -1) {
1101                 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1102                 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1103                 return;
1104         }
1105
1106         reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1107         x_fprintf(x_stdout, "TT %s *\n", reply_base64);
1108
1109         TALLOC_FREE(reply_base64);
1110         data_blob_free(&token);
1111         DEBUG(10, ("sent SPNEGO negTokenInit\n"));
1112         return;
1113 }
1114
1115 static void manage_gss_spnego_request(struct ntlm_auth_state *state,
1116                                         char *buf, int length)
1117 {
1118         static NTLMSSP_STATE *ntlmssp_state = NULL;
1119         SPNEGO_DATA request, response;
1120         DATA_BLOB token;
1121         NTSTATUS status;
1122         ssize_t len;
1123         TALLOC_CTX *ctx = talloc_tos();
1124
1125         char *user = NULL;
1126         char *domain = NULL;
1127
1128         const char *reply_code;
1129         char       *reply_base64;
1130         char *reply_argument = NULL;
1131
1132         if (strlen(buf) < 2) {
1133                 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1134                 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1135                 return;
1136         }
1137
1138         if (strncmp(buf, "YR", 2) == 0) {
1139                 if (ntlmssp_state)
1140                         ntlmssp_end(&ntlmssp_state);
1141         } else if (strncmp(buf, "KK", 2) == 0) {
1142                 ;
1143         } else {
1144                 DEBUG(1, ("SPENGO query [%s] invalid", buf));
1145                 x_fprintf(x_stdout, "BH SPENGO query invalid\n");
1146                 return;
1147         }
1148
1149         if ( (strlen(buf) == 2)) {
1150
1151                 /* no client data, get the negTokenInit offering
1152                    mechanisms */
1153
1154                 offer_gss_spnego_mechs();
1155                 return;
1156         }
1157
1158         /* All subsequent requests have a blob. This might be negTokenInit or negTokenTarg */
1159
1160         if (strlen(buf) <= 3) {
1161                 DEBUG(1, ("GSS-SPNEGO query [%s] invalid\n", buf));
1162                 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1163                 return;
1164         }
1165
1166         token = base64_decode_data_blob(buf + 3);
1167         len = read_spnego_data(token, &request);
1168         data_blob_free(&token);
1169
1170         if (len == -1) {
1171                 DEBUG(1, ("GSS-SPNEGO query [%s] invalid", buf));
1172                 x_fprintf(x_stdout, "BH GSS-SPNEGO query invalid\n");
1173                 return;
1174         }
1175
1176         if (request.type == SPNEGO_NEG_TOKEN_INIT) {
1177
1178                 /* Second request from Client. This is where the
1179                    client offers its mechanism to use. */
1180
1181                 if ( (request.negTokenInit.mechTypes == NULL) ||
1182                      (request.negTokenInit.mechTypes[0] == NULL) ) {
1183                         DEBUG(1, ("Client did not offer any mechanism"));
1184                         x_fprintf(x_stdout, "BH Client did not offer any "
1185                                             "mechanism\n");
1186                         return;
1187                 }
1188
1189                 status = NT_STATUS_UNSUCCESSFUL;
1190                 if (strcmp(request.negTokenInit.mechTypes[0], OID_NTLMSSP) == 0) {
1191
1192                         if ( request.negTokenInit.mechToken.data == NULL ) {
1193                                 DEBUG(1, ("Client did not provide NTLMSSP data\n"));
1194                                 x_fprintf(x_stdout, "BH Client did not provide "
1195                                                     "NTLMSSP data\n");
1196                                 return;
1197                         }
1198
1199                         if ( ntlmssp_state != NULL ) {
1200                                 DEBUG(1, ("Client wants a new NTLMSSP challenge, but "
1201                                           "already got one\n"));
1202                                 x_fprintf(x_stdout, "BH Client wants a new "
1203                                                     "NTLMSSP challenge, but "
1204                                                     "already got one\n");
1205                                 ntlmssp_end(&ntlmssp_state);
1206                                 return;
1207                         }
1208
1209                         if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_server(&ntlmssp_state))) {
1210                                 x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1211                                 return;
1212                         }
1213
1214                         DEBUG(10, ("got NTLMSSP packet:\n"));
1215                         dump_data(10, request.negTokenInit.mechToken.data,
1216                                   request.negTokenInit.mechToken.length);
1217
1218                         response.type = SPNEGO_NEG_TOKEN_TARG;
1219                         response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
1220                         response.negTokenTarg.mechListMIC = data_blob_null;
1221
1222                         status = ntlmssp_update(ntlmssp_state,
1223                                                        request.negTokenInit.mechToken,
1224                                                        &response.negTokenTarg.responseToken);
1225                 }
1226
1227 #ifdef HAVE_KRB5
1228                 if (strcmp(request.negTokenInit.mechTypes[0], OID_KERBEROS5_OLD) == 0) {
1229
1230                         TALLOC_CTX *mem_ctx = talloc_init("manage_gss_spnego_request");
1231                         char *principal;
1232                         DATA_BLOB ap_rep;
1233                         DATA_BLOB session_key;
1234                         struct PAC_DATA *pac_data = NULL;
1235
1236                         if ( request.negTokenInit.mechToken.data == NULL ) {
1237                                 DEBUG(1, ("Client did not provide Kerberos data\n"));
1238                                 x_fprintf(x_stdout, "BH Client did not provide "
1239                                                     "Kerberos data\n");
1240                                 return;
1241                         }
1242
1243                         response.type = SPNEGO_NEG_TOKEN_TARG;
1244                         response.negTokenTarg.supportedMech = SMB_STRDUP(OID_KERBEROS5_OLD);
1245                         response.negTokenTarg.mechListMIC = data_blob_null;
1246                         response.negTokenTarg.responseToken = data_blob_null;
1247
1248                         status = ads_verify_ticket(mem_ctx, lp_realm(), 0,
1249                                                    &request.negTokenInit.mechToken,
1250                                                    &principal, &pac_data, &ap_rep,
1251                                                    &session_key, True);
1252
1253                         talloc_destroy(mem_ctx);
1254
1255                         /* Now in "principal" we have the name we are
1256                            authenticated as. */
1257
1258                         if (NT_STATUS_IS_OK(status)) {
1259
1260                                 domain = strchr_m(principal, '@');
1261
1262                                 if (domain == NULL) {
1263                                         DEBUG(1, ("Did not get a valid principal "
1264                                                   "from ads_verify_ticket\n"));
1265                                         x_fprintf(x_stdout, "BH Did not get a "
1266                                                   "valid principal from "
1267                                                   "ads_verify_ticket\n");
1268                                         return;
1269                                 }
1270
1271                                 *domain++ = '\0';
1272                                 domain = SMB_STRDUP(domain);
1273                                 user = SMB_STRDUP(principal);
1274
1275                                 data_blob_free(&ap_rep);
1276
1277                                 SAFE_FREE(principal);
1278                         }
1279                 }
1280 #endif
1281
1282         } else {
1283
1284                 if ( (request.negTokenTarg.supportedMech == NULL) ||
1285                      ( strcmp(request.negTokenTarg.supportedMech, OID_NTLMSSP) != 0 ) ) {
1286                         /* Kerberos should never send a negTokenTarg, OID_NTLMSSP
1287                            is the only one we support that sends this stuff */
1288                         DEBUG(1, ("Got a negTokenTarg for something non-NTLMSSP: %s\n",
1289                                   request.negTokenTarg.supportedMech));
1290                         x_fprintf(x_stdout, "BH Got a negTokenTarg for "
1291                                             "something non-NTLMSSP\n");
1292                         return;
1293                 }
1294
1295                 if (request.negTokenTarg.responseToken.data == NULL) {
1296                         DEBUG(1, ("Got a negTokenTarg without a responseToken!\n"));
1297                         x_fprintf(x_stdout, "BH Got a negTokenTarg without a "
1298                                             "responseToken!\n");
1299                         return;
1300                 }
1301
1302                 status = ntlmssp_update(ntlmssp_state,
1303                                                request.negTokenTarg.responseToken,
1304                                                &response.negTokenTarg.responseToken);
1305
1306                 response.type = SPNEGO_NEG_TOKEN_TARG;
1307                 response.negTokenTarg.supportedMech = SMB_STRDUP(OID_NTLMSSP);
1308                 response.negTokenTarg.mechListMIC = data_blob_null;
1309
1310                 if (NT_STATUS_IS_OK(status)) {
1311                         user = SMB_STRDUP(ntlmssp_state->user);
1312                         domain = SMB_STRDUP(ntlmssp_state->domain);
1313                         ntlmssp_end(&ntlmssp_state);
1314                 }
1315         }
1316
1317         free_spnego_data(&request);
1318
1319         if (NT_STATUS_IS_OK(status)) {
1320                 response.negTokenTarg.negResult = SPNEGO_ACCEPT_COMPLETED;
1321                 reply_code = "AF";
1322                 reply_argument = talloc_asprintf(ctx, "%s\\%s", domain, user);
1323         } else if (NT_STATUS_EQUAL(status,
1324                                    NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1325                 response.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1326                 reply_code = "TT";
1327                 reply_argument = talloc_strdup(ctx, "*");
1328         } else {
1329                 response.negTokenTarg.negResult = SPNEGO_REJECT;
1330                 reply_code = "NA";
1331                 reply_argument = talloc_strdup(ctx, nt_errstr(status));
1332         }
1333
1334         if (!reply_argument) {
1335                 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1336                 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1337                 return;
1338         }
1339
1340         SAFE_FREE(user);
1341         SAFE_FREE(domain);
1342
1343         len = write_spnego_data(&token, &response);
1344         free_spnego_data(&response);
1345
1346         if (len == -1) {
1347                 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1348                 x_fprintf(x_stdout, "BH Could not write SPNEGO data blob\n");
1349                 return;
1350         }
1351
1352         reply_base64 = base64_encode_data_blob(talloc_tos(), token);
1353
1354         x_fprintf(x_stdout, "%s %s %s\n",
1355                   reply_code, reply_base64, reply_argument);
1356
1357         TALLOC_FREE(reply_base64);
1358         data_blob_free(&token);
1359
1360         return;
1361 }
1362
1363 static NTLMSSP_STATE *client_ntlmssp_state = NULL;
1364
1365 static bool manage_client_ntlmssp_init(SPNEGO_DATA spnego)
1366 {
1367         NTSTATUS status;
1368         DATA_BLOB null_blob = data_blob_null;
1369         DATA_BLOB to_server;
1370         char *to_server_base64;
1371         const char *my_mechs[] = {OID_NTLMSSP, NULL};
1372
1373         DEBUG(10, ("Got spnego negTokenInit with NTLMSSP\n"));
1374
1375         if (client_ntlmssp_state != NULL) {
1376                 DEBUG(1, ("Request for initial SPNEGO request where "
1377                           "we already have a state\n"));
1378                 return False;
1379         }
1380
1381         if (!client_ntlmssp_state) {
1382                 if (!NT_STATUS_IS_OK(status = ntlm_auth_start_ntlmssp_client(&client_ntlmssp_state))) {
1383                         x_fprintf(x_stdout, "BH %s\n", nt_errstr(status));
1384                         return False;
1385                 }
1386         }
1387
1388
1389         if (opt_password == NULL) {
1390
1391                 /* Request a password from the calling process.  After
1392                    sending it, the calling process should retry with
1393                    the negTokenInit. */
1394
1395                 DEBUG(10, ("Requesting password\n"));
1396                 x_fprintf(x_stdout, "PW\n");
1397                 return True;
1398         }
1399
1400         spnego.type = SPNEGO_NEG_TOKEN_INIT;
1401         spnego.negTokenInit.mechTypes = my_mechs;
1402         spnego.negTokenInit.reqFlags = 0;
1403         spnego.negTokenInit.mechListMIC = null_blob;
1404
1405         status = ntlmssp_update(client_ntlmssp_state, null_blob,
1406                                        &spnego.negTokenInit.mechToken);
1407
1408         if ( !(NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) ||
1409                         NT_STATUS_IS_OK(status)) ) {
1410                 DEBUG(1, ("Expected OK or MORE_PROCESSING_REQUIRED, got: %s\n",
1411                           nt_errstr(status)));
1412                 ntlmssp_end(&client_ntlmssp_state);
1413                 return False;
1414         }
1415
1416         write_spnego_data(&to_server, &spnego);
1417         data_blob_free(&spnego.negTokenInit.mechToken);
1418
1419         to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1420         data_blob_free(&to_server);
1421         x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1422         TALLOC_FREE(to_server_base64);
1423         return True;
1424 }
1425
1426 static void manage_client_ntlmssp_targ(SPNEGO_DATA spnego)
1427 {
1428         NTSTATUS status;
1429         DATA_BLOB null_blob = data_blob_null;
1430         DATA_BLOB request;
1431         DATA_BLOB to_server;
1432         char *to_server_base64;
1433
1434         DEBUG(10, ("Got spnego negTokenTarg with NTLMSSP\n"));
1435
1436         if (client_ntlmssp_state == NULL) {
1437                 DEBUG(1, ("Got NTLMSSP tArg without a client state\n"));
1438                 x_fprintf(x_stdout, "BH Got NTLMSSP tArg without a client state\n");
1439                 return;
1440         }
1441
1442         if (spnego.negTokenTarg.negResult == SPNEGO_REJECT) {
1443                 x_fprintf(x_stdout, "NA\n");
1444                 ntlmssp_end(&client_ntlmssp_state);
1445                 return;
1446         }
1447
1448         if (spnego.negTokenTarg.negResult == SPNEGO_ACCEPT_COMPLETED) {
1449                 x_fprintf(x_stdout, "AF\n");
1450                 ntlmssp_end(&client_ntlmssp_state);
1451                 return;
1452         }
1453
1454         status = ntlmssp_update(client_ntlmssp_state,
1455                                        spnego.negTokenTarg.responseToken,
1456                                        &request);
1457
1458         if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
1459                 DEBUG(1, ("Expected MORE_PROCESSING_REQUIRED from "
1460                           "ntlmssp_client_update, got: %s\n",
1461                           nt_errstr(status)));
1462                 x_fprintf(x_stdout, "BH Expected MORE_PROCESSING_REQUIRED from "
1463                                     "ntlmssp_client_update\n");
1464                 data_blob_free(&request);
1465                 ntlmssp_end(&client_ntlmssp_state);
1466                 return;
1467         }
1468
1469         spnego.type = SPNEGO_NEG_TOKEN_TARG;
1470         spnego.negTokenTarg.negResult = SPNEGO_ACCEPT_INCOMPLETE;
1471         spnego.negTokenTarg.supportedMech = (char *)OID_NTLMSSP;
1472         spnego.negTokenTarg.responseToken = request;
1473         spnego.negTokenTarg.mechListMIC = null_blob;
1474
1475         write_spnego_data(&to_server, &spnego);
1476         data_blob_free(&request);
1477
1478         to_server_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1479         data_blob_free(&to_server);
1480         x_fprintf(x_stdout, "KK %s\n", to_server_base64);
1481         TALLOC_FREE(to_server_base64);
1482         return;
1483 }
1484
1485 #ifdef HAVE_KRB5
1486
1487 static bool manage_client_krb5_init(SPNEGO_DATA spnego)
1488 {
1489         char *principal;
1490         DATA_BLOB tkt, to_server;
1491         DATA_BLOB session_key_krb5 = data_blob_null;
1492         SPNEGO_DATA reply;
1493         char *reply_base64;
1494         int retval;
1495
1496         const char *my_mechs[] = {OID_KERBEROS5_OLD, NULL};
1497         ssize_t len;
1498
1499         if ( (spnego.negTokenInit.mechListMIC.data == NULL) ||
1500              (spnego.negTokenInit.mechListMIC.length == 0) ) {
1501                 DEBUG(1, ("Did not get a principal for krb5\n"));
1502                 return False;
1503         }
1504
1505         principal = (char *)SMB_MALLOC(
1506                 spnego.negTokenInit.mechListMIC.length+1);
1507
1508         if (principal == NULL) {
1509                 DEBUG(1, ("Could not malloc principal\n"));
1510                 return False;
1511         }
1512
1513         memcpy(principal, spnego.negTokenInit.mechListMIC.data,
1514                spnego.negTokenInit.mechListMIC.length);
1515         principal[spnego.negTokenInit.mechListMIC.length] = '\0';
1516
1517         retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL);
1518
1519         if (retval) {
1520                 char *user = NULL;
1521
1522                 /* Let's try to first get the TGT, for that we need a
1523                    password. */
1524
1525                 if (opt_password == NULL) {
1526                         DEBUG(10, ("Requesting password\n"));
1527                         x_fprintf(x_stdout, "PW\n");
1528                         return True;
1529                 }
1530
1531                 user = talloc_asprintf(talloc_tos(), "%s@%s", opt_username, opt_domain);
1532                 if (!user) {
1533                         return false;
1534                 }
1535
1536                 if ((retval = kerberos_kinit_password(user, opt_password, 0, NULL))) {
1537                         DEBUG(10, ("Requesting TGT failed: %s\n", error_message(retval)));
1538                         return False;
1539                 }
1540
1541                 retval = cli_krb5_get_ticket(principal, 0, &tkt, &session_key_krb5, 0, NULL, NULL);
1542
1543                 if (retval) {
1544                         DEBUG(10, ("Kinit suceeded, but getting a ticket failed: %s\n", error_message(retval)));
1545                         return False;
1546                 }
1547         }
1548
1549         data_blob_free(&session_key_krb5);
1550
1551         ZERO_STRUCT(reply);
1552
1553         reply.type = SPNEGO_NEG_TOKEN_INIT;
1554         reply.negTokenInit.mechTypes = my_mechs;
1555         reply.negTokenInit.reqFlags = 0;
1556         reply.negTokenInit.mechToken = tkt;
1557         reply.negTokenInit.mechListMIC = data_blob_null;
1558
1559         len = write_spnego_data(&to_server, &reply);
1560         data_blob_free(&tkt);
1561
1562         if (len == -1) {
1563                 DEBUG(1, ("Could not write SPNEGO data blob\n"));
1564                 return False;
1565         }
1566
1567         reply_base64 = base64_encode_data_blob(talloc_tos(), to_server);
1568         x_fprintf(x_stdout, "KK %s *\n", reply_base64);
1569
1570         TALLOC_FREE(reply_base64);
1571         data_blob_free(&to_server);
1572         DEBUG(10, ("sent GSS-SPNEGO KERBEROS5 negTokenInit\n"));
1573         return True;
1574 }
1575
1576 static void manage_client_krb5_targ(SPNEGO_DATA spnego)
1577 {
1578         switch (spnego.negTokenTarg.negResult) {
1579         case SPNEGO_ACCEPT_INCOMPLETE:
1580                 DEBUG(1, ("Got a Kerberos negTokenTarg with ACCEPT_INCOMPLETE\n"));
1581                 x_fprintf(x_stdout, "BH Got a Kerberos negTokenTarg with "
1582                                     "ACCEPT_INCOMPLETE\n");
1583                 break;
1584         case SPNEGO_ACCEPT_COMPLETED:
1585                 DEBUG(10, ("Accept completed\n"));
1586                 x_fprintf(x_stdout, "AF\n");
1587                 break;
1588         case SPNEGO_REJECT:
1589                 DEBUG(10, ("Rejected\n"));
1590                 x_fprintf(x_stdout, "NA\n");
1591                 break;
1592         default:
1593                 DEBUG(1, ("Got an invalid negTokenTarg\n"));
1594                 x_fprintf(x_stdout, "AF\n");
1595         }
1596 }
1597
1598 #endif
1599
1600 static void manage_gss_spnego_client_request(struct ntlm_auth_state *state,
1601                                                 char *buf, int length)
1602 {
1603         DATA_BLOB request;
1604         SPNEGO_DATA spnego;
1605         ssize_t len;
1606
1607         if (!opt_username || !*opt_username) {
1608                 x_fprintf(x_stderr, "username must be specified!\n\n");
1609                 exit(1);
1610         }
1611
1612         if (strlen(buf) <= 3) {
1613                 DEBUG(1, ("SPNEGO query [%s] too short\n", buf));
1614                 x_fprintf(x_stdout, "BH SPNEGO query too short\n");
1615                 return;
1616         }
1617
1618         request = base64_decode_data_blob(buf+3);
1619
1620         if (strncmp(buf, "PW ", 3) == 0) {
1621
1622                 /* We asked for a password and obviously got it :-) */
1623
1624                 opt_password = SMB_STRNDUP((const char *)request.data, request.length);
1625
1626                 if (opt_password == NULL) {
1627                         DEBUG(1, ("Out of memory\n"));
1628                         x_fprintf(x_stdout, "BH Out of memory\n");
1629                         data_blob_free(&request);
1630                         return;
1631                 }
1632
1633                 x_fprintf(x_stdout, "OK\n");
1634                 data_blob_free(&request);
1635                 return;
1636         }
1637
1638         if ( (strncmp(buf, "TT ", 3) != 0) &&
1639              (strncmp(buf, "AF ", 3) != 0) &&
1640              (strncmp(buf, "NA ", 3) != 0) ) {
1641                 DEBUG(1, ("SPNEGO request [%s] invalid\n", buf));
1642                 x_fprintf(x_stdout, "BH SPNEGO request invalid\n");
1643                 data_blob_free(&request);
1644                 return;
1645         }
1646
1647         /* So we got a server challenge to generate a SPNEGO
1648            client-to-server request... */
1649
1650         len = read_spnego_data(request, &spnego);
1651         data_blob_free(&request);
1652
1653         if (len == -1) {
1654                 DEBUG(1, ("Could not read SPNEGO data for [%s]\n", buf));
1655                 x_fprintf(x_stdout, "BH Could not read SPNEGO data\n");
1656                 return;
1657         }
1658
1659         if (spnego.type == SPNEGO_NEG_TOKEN_INIT) {
1660
1661                 /* The server offers a list of mechanisms */
1662
1663                 const char **mechType = (const char **)spnego.negTokenInit.mechTypes;
1664
1665                 while (*mechType != NULL) {
1666
1667 #ifdef HAVE_KRB5
1668                         if ( (strcmp(*mechType, OID_KERBEROS5_OLD) == 0) ||
1669                              (strcmp(*mechType, OID_KERBEROS5) == 0) ) {
1670                                 if (manage_client_krb5_init(spnego))
1671                                         goto out;
1672                         }
1673 #endif
1674
1675                         if (strcmp(*mechType, OID_NTLMSSP) == 0) {
1676                                 if (manage_client_ntlmssp_init(spnego))
1677                                         goto out;
1678                         }
1679
1680                         mechType++;
1681                 }
1682
1683                 DEBUG(1, ("Server offered no compatible mechanism\n"));
1684                 x_fprintf(x_stdout, "BH Server offered no compatible mechanism\n");
1685                 return;
1686         }
1687
1688         if (spnego.type == SPNEGO_NEG_TOKEN_TARG) {
1689
1690                 if (spnego.negTokenTarg.supportedMech == NULL) {
1691                         /* On accept/reject Windows does not send the
1692                            mechanism anymore. Handle that here and
1693                            shut down the mechanisms. */
1694
1695                         switch (spnego.negTokenTarg.negResult) {
1696                         case SPNEGO_ACCEPT_COMPLETED:
1697                                 x_fprintf(x_stdout, "AF\n");
1698                                 break;
1699                         case SPNEGO_REJECT:
1700                                 x_fprintf(x_stdout, "NA\n");
1701                                 break;
1702                         default:
1703                                 DEBUG(1, ("Got a negTokenTarg with no mech and an "
1704                                           "unknown negResult: %d\n",
1705                                           spnego.negTokenTarg.negResult));
1706                                 x_fprintf(x_stdout, "BH Got a negTokenTarg with"
1707                                                     " no mech and an unknown "
1708                                                     "negResult\n");
1709                         }
1710
1711                         ntlmssp_end(&client_ntlmssp_state);
1712                         goto out;
1713                 }
1714
1715                 if (strcmp(spnego.negTokenTarg.supportedMech,
1716                            OID_NTLMSSP) == 0) {
1717                         manage_client_ntlmssp_targ(spnego);
1718                         goto out;
1719                 }
1720
1721 #if HAVE_KRB5
1722                 if (strcmp(spnego.negTokenTarg.supportedMech,
1723                            OID_KERBEROS5_OLD) == 0) {
1724                         manage_client_krb5_targ(spnego);
1725                         goto out;
1726                 }
1727 #endif
1728
1729         }
1730
1731         DEBUG(1, ("Got an SPNEGO token I could not handle [%s]!\n", buf));
1732         x_fprintf(x_stdout, "BH Got an SPNEGO token I could not handle\n");
1733         return;
1734
1735  out:
1736         free_spnego_data(&spnego);
1737         return;
1738 }
1739
1740 static void manage_ntlm_server_1_request(struct ntlm_auth_state *state,
1741                                                 char *buf, int length)
1742 {
1743         char *request, *parameter;
1744         static DATA_BLOB challenge;
1745         static DATA_BLOB lm_response;
1746         static DATA_BLOB nt_response;
1747         static char *full_username;
1748         static char *username;
1749         static char *domain;
1750         static char *plaintext_password;
1751         static bool ntlm_server_1_user_session_key;
1752         static bool ntlm_server_1_lm_session_key;
1753
1754         if (strequal(buf, ".")) {
1755                 if (!full_username && !username) {
1756                         x_fprintf(x_stdout, "Error: No username supplied!\n");
1757                 } else if (plaintext_password) {
1758                         /* handle this request as plaintext */
1759                         if (!full_username) {
1760                                 if (asprintf(&full_username, "%s%c%s", domain, winbind_separator(), username) == -1) {
1761                                         x_fprintf(x_stdout, "Error: Out of memory in asprintf!\n.\n");
1762                                         return;
1763                                 }
1764                         }
1765                         if (check_plaintext_auth(full_username, plaintext_password, False)) {
1766                                 x_fprintf(x_stdout, "Authenticated: Yes\n");
1767                         } else {
1768                                 x_fprintf(x_stdout, "Authenticated: No\n");
1769                         }
1770                 } else if (!lm_response.data && !nt_response.data) {
1771                         x_fprintf(x_stdout, "Error: No password supplied!\n");
1772                 } else if (!challenge.data) {
1773                         x_fprintf(x_stdout, "Error: No lanman-challenge supplied!\n");
1774                 } else {
1775                         char *error_string = NULL;
1776                         uchar lm_key[8];
1777                         uchar user_session_key[16];
1778                         uint32 flags = 0;
1779
1780                         if (full_username && !username) {
1781                                 fstring fstr_user;
1782                                 fstring fstr_domain;
1783
1784                                 if (!parse_ntlm_auth_domain_user(full_username, fstr_user, fstr_domain)) {
1785                                         /* username might be 'tainted', don't print into our new-line deleimianted stream */
1786                                         x_fprintf(x_stdout, "Error: Could not parse into domain and username\n");
1787                                 }
1788                                 SAFE_FREE(username);
1789                                 SAFE_FREE(domain);
1790                                 username = smb_xstrdup(fstr_user);
1791                                 domain = smb_xstrdup(fstr_domain);
1792                         }
1793
1794                         if (!domain) {
1795                                 domain = smb_xstrdup(get_winbind_domain());
1796                         }
1797
1798                         if (ntlm_server_1_lm_session_key)
1799                                 flags |= WBFLAG_PAM_LMKEY;
1800
1801                         if (ntlm_server_1_user_session_key)
1802                                 flags |= WBFLAG_PAM_USER_SESSION_KEY;
1803
1804                         if (!NT_STATUS_IS_OK(
1805                                     contact_winbind_auth_crap(username,
1806                                                               domain,
1807                                                               global_myname(),
1808                                                               &challenge,
1809                                                               &lm_response,
1810                                                               &nt_response,
1811                                                               flags,
1812                                                               lm_key,
1813                                                               user_session_key,
1814                                                               &error_string,
1815                                                               NULL))) {
1816
1817                                 x_fprintf(x_stdout, "Authenticated: No\n");
1818                                 x_fprintf(x_stdout, "Authentication-Error: %s\n.\n", error_string);
1819                                 SAFE_FREE(error_string);
1820                         } else {
1821                                 static char zeros[16];
1822                                 char *hex_lm_key;
1823                                 char *hex_user_session_key;
1824
1825                                 x_fprintf(x_stdout, "Authenticated: Yes\n");
1826
1827                                 if (ntlm_server_1_lm_session_key
1828                                     && (memcmp(zeros, lm_key,
1829                                                sizeof(lm_key)) != 0)) {
1830                                         hex_lm_key = hex_encode_talloc(NULL,
1831                                                                 (const unsigned char *)lm_key,
1832                                                                 sizeof(lm_key));
1833                                         x_fprintf(x_stdout, "LANMAN-Session-Key: %s\n", hex_lm_key);
1834                                         TALLOC_FREE(hex_lm_key);
1835                                 }
1836
1837                                 if (ntlm_server_1_user_session_key
1838                                     && (memcmp(zeros, user_session_key,
1839                                                sizeof(user_session_key)) != 0)) {
1840                                         hex_user_session_key = hex_encode_talloc(NULL,
1841                                                                           (const unsigned char *)user_session_key,
1842                                                                           sizeof(user_session_key));
1843                                         x_fprintf(x_stdout, "User-Session-Key: %s\n", hex_user_session_key);
1844                                         TALLOC_FREE(hex_user_session_key);
1845                                 }
1846                         }
1847                 }
1848                 /* clear out the state */
1849                 challenge = data_blob_null;
1850                 nt_response = data_blob_null;
1851                 lm_response = data_blob_null;
1852                 SAFE_FREE(full_username);
1853                 SAFE_FREE(username);
1854                 SAFE_FREE(domain);
1855                 SAFE_FREE(plaintext_password);
1856                 ntlm_server_1_user_session_key = False;
1857                 ntlm_server_1_lm_session_key = False;
1858                 x_fprintf(x_stdout, ".\n");
1859
1860                 return;
1861         }
1862
1863         request = buf;
1864
1865         /* Indicates a base64 encoded structure */
1866         parameter = strstr_m(request, ":: ");
1867         if (!parameter) {
1868                 parameter = strstr_m(request, ": ");
1869
1870                 if (!parameter) {
1871                         DEBUG(0, ("Parameter not found!\n"));
1872                         x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
1873                         return;
1874                 }
1875
1876                 parameter[0] ='\0';
1877                 parameter++;
1878                 parameter[0] ='\0';
1879                 parameter++;
1880
1881         } else {
1882                 parameter[0] ='\0';
1883                 parameter++;
1884                 parameter[0] ='\0';
1885                 parameter++;
1886                 parameter[0] ='\0';
1887                 parameter++;
1888
1889                 base64_decode_inplace(parameter);
1890         }
1891
1892         if (strequal(request, "LANMAN-Challenge")) {
1893                 challenge = strhex_to_data_blob(NULL, parameter);
1894                 if (challenge.length != 8) {
1895                         x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 8)\n.\n",
1896                                   parameter,
1897                                   (int)challenge.length);
1898                         challenge = data_blob_null;
1899                 }
1900         } else if (strequal(request, "NT-Response")) {
1901                 nt_response = strhex_to_data_blob(NULL, parameter);
1902                 if (nt_response.length < 24) {
1903                         x_fprintf(x_stdout, "Error: hex decode of %s failed! (only got %d bytes, needed at least 24)\n.\n",
1904                                   parameter,
1905                                   (int)nt_response.length);
1906                         nt_response = data_blob_null;
1907                 }
1908         } else if (strequal(request, "LANMAN-Response")) {
1909                 lm_response = strhex_to_data_blob(NULL, parameter);
1910                 if (lm_response.length != 24) {
1911                         x_fprintf(x_stdout, "Error: hex decode of %s failed! (got %d bytes, expected 24)\n.\n",
1912                                   parameter,
1913                                   (int)lm_response.length);
1914                         lm_response = data_blob_null;
1915                 }
1916         } else if (strequal(request, "Password")) {
1917                 plaintext_password = smb_xstrdup(parameter);
1918         } else if (strequal(request, "NT-Domain")) {
1919                 domain = smb_xstrdup(parameter);
1920         } else if (strequal(request, "Username")) {
1921                 username = smb_xstrdup(parameter);
1922         } else if (strequal(request, "Full-Username")) {
1923                 full_username = smb_xstrdup(parameter);
1924         } else if (strequal(request, "Request-User-Session-Key")) {
1925                 ntlm_server_1_user_session_key = strequal(parameter, "Yes");
1926         } else if (strequal(request, "Request-LanMan-Session-Key")) {
1927                 ntlm_server_1_lm_session_key = strequal(parameter, "Yes");
1928         } else {
1929                 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
1930         }
1931 }
1932
1933 static void manage_ntlm_change_password_1_request(struct ntlm_auth_state *state,
1934                                                         char *buf, int length)
1935 {
1936         char *request, *parameter;
1937         static DATA_BLOB new_nt_pswd;
1938         static DATA_BLOB old_nt_hash_enc;
1939         static DATA_BLOB new_lm_pswd;
1940         static DATA_BLOB old_lm_hash_enc;
1941         static char *full_username = NULL;
1942         static char *username = NULL;
1943         static char *domain = NULL;
1944         static char *newpswd =  NULL;
1945         static char *oldpswd = NULL;
1946
1947         if (strequal(buf, ".")) {
1948                 if(newpswd && oldpswd) {
1949                         uchar old_nt_hash[16];
1950                         uchar old_lm_hash[16];
1951                         uchar new_nt_hash[16];
1952                         uchar new_lm_hash[16];
1953
1954                         new_nt_pswd = data_blob(NULL, 516);
1955                         old_nt_hash_enc = data_blob(NULL, 16);
1956
1957                         /* Calculate the MD4 hash (NT compatible) of the
1958                          * password */
1959                         E_md4hash(oldpswd, old_nt_hash);
1960                         E_md4hash(newpswd, new_nt_hash);
1961
1962                         /* E_deshash returns false for 'long'
1963                            passwords (> 14 DOS chars).
1964
1965                            Therefore, don't send a buffer
1966                            encrypted with the truncated hash
1967                            (it could allow an even easier
1968                            attack on the password)
1969
1970                            Likewise, obey the admin's restriction
1971                         */
1972
1973                         if (lp_client_lanman_auth() &&
1974                             E_deshash(newpswd, new_lm_hash) &&
1975                             E_deshash(oldpswd, old_lm_hash)) {
1976                                 new_lm_pswd = data_blob(NULL, 516);
1977                                 old_lm_hash_enc = data_blob(NULL, 16);
1978                                 encode_pw_buffer(new_lm_pswd.data, newpswd,
1979                                                  STR_UNICODE);
1980
1981                                 SamOEMhash(new_lm_pswd.data, old_nt_hash, 516);
1982                                 E_old_pw_hash(new_nt_hash, old_lm_hash,
1983                                               old_lm_hash_enc.data);
1984                         } else {
1985                                 new_lm_pswd.data = NULL;
1986                                 new_lm_pswd.length = 0;
1987                                 old_lm_hash_enc.data = NULL;
1988                                 old_lm_hash_enc.length = 0;
1989                         }
1990
1991                         encode_pw_buffer(new_nt_pswd.data, newpswd,
1992                                          STR_UNICODE);
1993
1994                         SamOEMhash(new_nt_pswd.data, old_nt_hash, 516);
1995                         E_old_pw_hash(new_nt_hash, old_nt_hash,
1996                                       old_nt_hash_enc.data);
1997                 }
1998
1999                 if (!full_username && !username) {
2000                         x_fprintf(x_stdout, "Error: No username supplied!\n");
2001                 } else if ((!new_nt_pswd.data || !old_nt_hash_enc.data) &&
2002                            (!new_lm_pswd.data || old_lm_hash_enc.data) ) {
2003                         x_fprintf(x_stdout, "Error: No NT or LM password "
2004                                   "blobs supplied!\n");
2005                 } else {
2006                         char *error_string = NULL;
2007
2008                         if (full_username && !username) {
2009                                 fstring fstr_user;
2010                                 fstring fstr_domain;
2011
2012                                 if (!parse_ntlm_auth_domain_user(full_username,
2013                                                                  fstr_user,
2014                                                                  fstr_domain)) {
2015                                         /* username might be 'tainted', don't
2016                                          * print into our new-line
2017                                          * deleimianted stream */
2018                                         x_fprintf(x_stdout, "Error: Could not "
2019                                                   "parse into domain and "
2020                                                   "username\n");
2021                                         SAFE_FREE(username);
2022                                         username = smb_xstrdup(full_username);
2023                                 } else {
2024                                         SAFE_FREE(username);
2025                                         SAFE_FREE(domain);
2026                                         username = smb_xstrdup(fstr_user);
2027                                         domain = smb_xstrdup(fstr_domain);
2028                                 }
2029
2030                         }
2031
2032                         if(!NT_STATUS_IS_OK(contact_winbind_change_pswd_auth_crap(
2033                                                     username, domain,
2034                                                     new_nt_pswd,
2035                                                     old_nt_hash_enc,
2036                                                     new_lm_pswd,
2037                                                     old_lm_hash_enc,
2038                                                     &error_string))) {
2039                                 x_fprintf(x_stdout, "Password-Change: No\n");
2040                                 x_fprintf(x_stdout, "Password-Change-Error: "
2041                                           "%s\n.\n", error_string);
2042                         } else {
2043                                 x_fprintf(x_stdout, "Password-Change: Yes\n");
2044                         }
2045
2046                         SAFE_FREE(error_string);
2047                 }
2048                 /* clear out the state */
2049                 new_nt_pswd = data_blob_null;
2050                 old_nt_hash_enc = data_blob_null;
2051                 new_lm_pswd = data_blob_null;
2052                 old_nt_hash_enc = data_blob_null;
2053                 SAFE_FREE(full_username);
2054                 SAFE_FREE(username);
2055                 SAFE_FREE(domain);
2056                 SAFE_FREE(newpswd);
2057                 SAFE_FREE(oldpswd);
2058                 x_fprintf(x_stdout, ".\n");
2059
2060                 return;
2061         }
2062
2063         request = buf;
2064
2065         /* Indicates a base64 encoded structure */
2066         parameter = strstr_m(request, ":: ");
2067         if (!parameter) {
2068                 parameter = strstr_m(request, ": ");
2069
2070                 if (!parameter) {
2071                         DEBUG(0, ("Parameter not found!\n"));
2072                         x_fprintf(x_stdout, "Error: Parameter not found!\n.\n");
2073                         return;
2074                 }
2075
2076                 parameter[0] ='\0';
2077                 parameter++;
2078                 parameter[0] ='\0';
2079                 parameter++;
2080         } else {
2081                 parameter[0] ='\0';
2082                 parameter++;
2083                 parameter[0] ='\0';
2084                 parameter++;
2085                 parameter[0] ='\0';
2086                 parameter++;
2087
2088                 base64_decode_inplace(parameter);
2089         }
2090
2091         if (strequal(request, "new-nt-password-blob")) {
2092                 new_nt_pswd = strhex_to_data_blob(NULL, parameter);
2093                 if (new_nt_pswd.length != 516) {
2094                         x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2095                                   "(got %d bytes, expected 516)\n.\n",
2096                                   parameter,
2097                                   (int)new_nt_pswd.length);
2098                         new_nt_pswd = data_blob_null;
2099                 }
2100         } else if (strequal(request, "old-nt-hash-blob")) {
2101                 old_nt_hash_enc = strhex_to_data_blob(NULL, parameter);
2102                 if (old_nt_hash_enc.length != 16) {
2103                         x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2104                                   "(got %d bytes, expected 16)\n.\n",
2105                                   parameter,
2106                                   (int)old_nt_hash_enc.length);
2107                         old_nt_hash_enc = data_blob_null;
2108                 }
2109         } else if (strequal(request, "new-lm-password-blob")) {
2110                 new_lm_pswd = strhex_to_data_blob(NULL, parameter);
2111                 if (new_lm_pswd.length != 516) {
2112                         x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2113                                   "(got %d bytes, expected 516)\n.\n",
2114                                   parameter,
2115                                   (int)new_lm_pswd.length);
2116                         new_lm_pswd = data_blob_null;
2117                 }
2118         }
2119         else if (strequal(request, "old-lm-hash-blob")) {
2120                 old_lm_hash_enc = strhex_to_data_blob(NULL, parameter);
2121                 if (old_lm_hash_enc.length != 16)
2122                 {
2123                         x_fprintf(x_stdout, "Error: hex decode of %s failed! "
2124                                   "(got %d bytes, expected 16)\n.\n",
2125                                   parameter,
2126                                   (int)old_lm_hash_enc.length);
2127                         old_lm_hash_enc = data_blob_null;
2128                 }
2129         } else if (strequal(request, "nt-domain")) {
2130                 domain = smb_xstrdup(parameter);
2131         } else if(strequal(request, "username")) {
2132                 username = smb_xstrdup(parameter);
2133         } else if(strequal(request, "full-username")) {
2134                 username = smb_xstrdup(parameter);
2135         } else if(strequal(request, "new-password")) {
2136                 newpswd = smb_xstrdup(parameter);
2137         } else if (strequal(request, "old-password")) {
2138                 oldpswd = smb_xstrdup(parameter);
2139         } else {
2140                 x_fprintf(x_stdout, "Error: Unknown request %s\n.\n", request);
2141         }
2142 }
2143
2144 static void manage_squid_request(struct ntlm_auth_state *state,
2145                 stdio_helper_function fn)
2146 {
2147         char *buf;
2148         char tmp[INITIAL_BUFFER_SIZE+1];
2149         int length, buf_size = 0;
2150         char *c;
2151
2152         buf = talloc_strdup(state->mem_ctx, "");
2153         if (!buf) {
2154                 DEBUG(0, ("Failed to allocate input buffer.\n"));
2155                 x_fprintf(x_stderr, "ERR\n");
2156                 exit(1);
2157         }
2158
2159         do {
2160
2161                 /* this is not a typo - x_fgets doesn't work too well under
2162                  * squid */
2163                 if (fgets(tmp, sizeof(tmp)-1, stdin) == NULL) {
2164                         if (ferror(stdin)) {
2165                                 DEBUG(1, ("fgets() failed! dying..... errno=%d "
2166                                           "(%s)\n", ferror(stdin),
2167                                           strerror(ferror(stdin))));
2168
2169                                 exit(1);
2170                         }
2171                         exit(0);
2172                 }
2173
2174                 buf = talloc_strdup_append_buffer(buf, tmp);
2175                 buf_size += INITIAL_BUFFER_SIZE;
2176
2177                 if (buf_size > MAX_BUFFER_SIZE) {
2178                         DEBUG(2, ("Oversized message\n"));
2179                         x_fprintf(x_stderr, "ERR\n");
2180                         talloc_free(buf);
2181                         return;
2182                 }
2183
2184                 c = strchr(buf, '\n');
2185         } while (c == NULL);
2186
2187         *c = '\0';
2188         length = c-buf;
2189
2190         DEBUG(10, ("Got '%s' from squid (length: %d).\n",buf,length));
2191
2192         if (buf[0] == '\0') {
2193                 DEBUG(2, ("Invalid Request\n"));
2194                 x_fprintf(x_stderr, "ERR\n");
2195                 talloc_free(buf);
2196                 return;
2197         }
2198
2199         fn(state, buf, length);
2200         talloc_free(buf);
2201 }
2202
2203
2204 static void squid_stream(enum stdio_helper_mode stdio_mode, stdio_helper_function fn) {
2205         TALLOC_CTX *mem_ctx;
2206         struct ntlm_auth_state *state;
2207
2208         /* initialize FDescs */
2209         x_setbuf(x_stdout, NULL);
2210         x_setbuf(x_stderr, NULL);
2211
2212         mem_ctx = talloc_init("ntlm_auth");
2213         if (!mem_ctx) {
2214                 DEBUG(0, ("squid_stream: Failed to create talloc context\n"));
2215                 x_fprintf(x_stderr, "ERR\n");
2216                 exit(1);
2217         }
2218
2219         state = talloc_zero(mem_ctx, struct ntlm_auth_state);
2220         if (!state) {
2221                 DEBUG(0, ("squid_stream: Failed to talloc ntlm_auth_state\n"));
2222                 x_fprintf(x_stderr, "ERR\n");
2223                 exit(1);
2224         }
2225
2226         state->mem_ctx = mem_ctx;
2227         state->helper_mode = stdio_mode;
2228
2229         while(1) {
2230                 manage_squid_request(state, fn);
2231         }
2232 }
2233
2234
2235 /* Authenticate a user with a challenge/response */
2236
2237 static bool check_auth_crap(void)
2238 {
2239         NTSTATUS nt_status;
2240         uint32 flags = 0;
2241         char lm_key[8];
2242         char user_session_key[16];
2243         char *hex_lm_key;
2244         char *hex_user_session_key;
2245         char *error_string;
2246         static uint8 zeros[16];
2247
2248         x_setbuf(x_stdout, NULL);
2249
2250         if (request_lm_key)
2251                 flags |= WBFLAG_PAM_LMKEY;
2252
2253         if (request_user_session_key)
2254                 flags |= WBFLAG_PAM_USER_SESSION_KEY;
2255
2256         flags |= WBFLAG_PAM_NT_STATUS_SQUASH;
2257
2258         nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
2259                                               opt_workstation,
2260                                               &opt_challenge,
2261                                               &opt_lm_response,
2262                                               &opt_nt_response,
2263                                               flags,
2264                                               (unsigned char *)lm_key,
2265                                               (unsigned char *)user_session_key,
2266                                               &error_string, NULL);
2267
2268         if (!NT_STATUS_IS_OK(nt_status)) {
2269                 x_fprintf(x_stdout, "%s (0x%x)\n",
2270                           error_string,
2271                           NT_STATUS_V(nt_status));
2272                 SAFE_FREE(error_string);
2273                 return False;
2274         }
2275
2276         if (request_lm_key
2277             && (memcmp(zeros, lm_key,
2278                        sizeof(lm_key)) != 0)) {
2279                 hex_lm_key = hex_encode_talloc(NULL, (const unsigned char *)lm_key,
2280                                         sizeof(lm_key));
2281                 x_fprintf(x_stdout, "LM_KEY: %s\n", hex_lm_key);
2282                 TALLOC_FREE(hex_lm_key);
2283         }
2284         if (request_user_session_key
2285             && (memcmp(zeros, user_session_key,
2286                        sizeof(user_session_key)) != 0)) {
2287                 hex_user_session_key = hex_encode_talloc(NULL, (const unsigned char *)user_session_key,
2288                                                   sizeof(user_session_key));
2289                 x_fprintf(x_stdout, "NT_KEY: %s\n", hex_user_session_key);
2290                 TALLOC_FREE(hex_user_session_key);
2291         }
2292
2293         return True;
2294 }
2295
2296 /* Main program */
2297
2298 enum {
2299         OPT_USERNAME = 1000,
2300         OPT_DOMAIN,
2301         OPT_WORKSTATION,
2302         OPT_CHALLENGE,
2303         OPT_RESPONSE,
2304         OPT_LM,
2305         OPT_NT,
2306         OPT_PASSWORD,
2307         OPT_LM_KEY,
2308         OPT_USER_SESSION_KEY,
2309         OPT_DIAGNOSTICS,
2310         OPT_REQUIRE_MEMBERSHIP,
2311         OPT_USE_CACHED_CREDS
2312 };
2313
2314  int main(int argc, const char **argv)
2315 {
2316         TALLOC_CTX *frame = talloc_stackframe();
2317         int opt;
2318         static const char *helper_protocol;
2319         static int diagnostics;
2320
2321         static const char *hex_challenge;
2322         static const char *hex_lm_response;
2323         static const char *hex_nt_response;
2324
2325         poptContext pc;
2326
2327         /* NOTE: DO NOT change this interface without considering the implications!
2328            This is an external interface, which other programs will use to interact
2329            with this helper.
2330         */
2331
2332         /* We do not use single-letter command abbreviations, because they harm future
2333            interface stability. */
2334
2335         struct poptOption long_options[] = {
2336                 POPT_AUTOHELP
2337                 { "helper-protocol", 0, POPT_ARG_STRING, &helper_protocol, OPT_DOMAIN, "operate as a stdio-based helper", "helper protocol to use"},
2338                 { "username", 0, POPT_ARG_STRING, &opt_username, OPT_USERNAME, "username"},
2339                 { "domain", 0, POPT_ARG_STRING, &opt_domain, OPT_DOMAIN, "domain name"},
2340                 { "workstation", 0, POPT_ARG_STRING, &opt_workstation, OPT_WORKSTATION, "workstation"},
2341                 { "challenge", 0, POPT_ARG_STRING, &hex_challenge, OPT_CHALLENGE, "challenge (HEX encoded)"},
2342                 { "lm-response", 0, POPT_ARG_STRING, &hex_lm_response, OPT_LM, "LM Response to the challenge (HEX encoded)"},
2343                 { "nt-response", 0, POPT_ARG_STRING, &hex_nt_response, OPT_NT, "NT or NTLMv2 Response to the challenge (HEX encoded)"},
2344                 { "password", 0, POPT_ARG_STRING, &opt_password, OPT_PASSWORD, "User's plaintext password"},
2345                 { "request-lm-key", 0, POPT_ARG_NONE, &request_lm_key, OPT_LM_KEY, "Retrieve LM session key"},
2346                 { "request-nt-key", 0, POPT_ARG_NONE, &request_user_session_key, OPT_USER_SESSION_KEY, "Retrieve User (NT) session key"},
2347                 { "use-cached-creds", 0, POPT_ARG_NONE, &use_cached_creds, OPT_USE_CACHED_CREDS, "Use cached credentials if no password is given"},
2348                 { "diagnostics", 0, POPT_ARG_NONE, &diagnostics, OPT_DIAGNOSTICS, "Perform diagnostics on the authentictaion chain"},
2349                 { "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" },
2350                 POPT_COMMON_CONFIGFILE
2351                 POPT_COMMON_VERSION
2352                 POPT_TABLEEND
2353         };
2354
2355         /* Samba client initialisation */
2356         load_case_tables();
2357
2358         dbf = x_stderr;
2359
2360         /* Parse options */
2361
2362         pc = poptGetContext("ntlm_auth", argc, argv, long_options, 0);
2363
2364         /* Parse command line options */
2365
2366         if (argc == 1) {
2367                 poptPrintHelp(pc, stderr, 0);
2368                 return 1;
2369         }
2370
2371         while((opt = poptGetNextOpt(pc)) != -1) {
2372                 /* Get generic config options like --configfile */
2373         }
2374
2375         poptFreeContext(pc);
2376
2377         if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, True)) {
2378                 d_fprintf(stderr, "ntlm_auth: error opening config file %s. Error was %s\n",
2379                         get_dyn_CONFIGFILE(), strerror(errno));
2380                 exit(1);
2381         }
2382
2383         pc = poptGetContext(NULL, argc, (const char **)argv, long_options,
2384                             POPT_CONTEXT_KEEP_FIRST);
2385
2386         while((opt = poptGetNextOpt(pc)) != -1) {
2387                 switch (opt) {
2388                 case OPT_CHALLENGE:
2389                         opt_challenge = strhex_to_data_blob(NULL, hex_challenge);
2390                         if (opt_challenge.length != 8) {
2391                                 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2392                                           hex_challenge,
2393                                           (int)opt_challenge.length);
2394                                 exit(1);
2395                         }
2396                         break;
2397                 case OPT_LM:
2398                         opt_lm_response = strhex_to_data_blob(NULL, hex_lm_response);
2399                         if (opt_lm_response.length != 24) {
2400                                 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2401                                           hex_lm_response,
2402                                           (int)opt_lm_response.length);
2403                                 exit(1);
2404                         }
2405                         break;
2406
2407                 case OPT_NT:
2408                         opt_nt_response = strhex_to_data_blob(NULL, hex_nt_response);
2409                         if (opt_nt_response.length < 24) {
2410                                 x_fprintf(x_stderr, "hex decode of %s failed! (only got %d bytes)\n",
2411                                           hex_nt_response,
2412                                           (int)opt_nt_response.length);
2413                                 exit(1);
2414                         }
2415                         break;
2416
2417                 case OPT_REQUIRE_MEMBERSHIP:
2418                         if (StrnCaseCmp("S-", require_membership_of, 2) == 0) {
2419                                 require_membership_of_sid = require_membership_of;
2420                         }
2421                         break;
2422                 }
2423         }
2424
2425         if (opt_username) {
2426                 char *domain = SMB_STRDUP(opt_username);
2427                 char *p = strchr_m(domain, *lp_winbind_separator());
2428                 if (p) {
2429                         opt_username = p+1;
2430                         *p = '\0';
2431                         if (opt_domain && !strequal(opt_domain, domain)) {
2432                                 x_fprintf(x_stderr, "Domain specified in username (%s) "
2433                                         "doesn't match specified domain (%s)!\n\n",
2434                                         domain, opt_domain);
2435                                 poptPrintHelp(pc, stderr, 0);
2436                                 exit(1);
2437                         }
2438                         opt_domain = domain;
2439                 } else {
2440                         SAFE_FREE(domain);
2441                 }
2442         }
2443
2444         /* Note: if opt_domain is "" then send no domain */
2445         if (opt_domain == NULL) {
2446                 opt_domain = get_winbind_domain();
2447         }
2448
2449         if (opt_workstation == NULL) {
2450                 opt_workstation = "";
2451         }
2452
2453         if (helper_protocol) {
2454                 int i;
2455                 for (i=0; i<NUM_HELPER_MODES; i++) {
2456                         if (strcmp(helper_protocol, stdio_helper_protocols[i].name) == 0) {
2457                                 squid_stream(stdio_helper_protocols[i].mode, stdio_helper_protocols[i].fn);
2458                                 exit(0);
2459                         }
2460                 }
2461                 x_fprintf(x_stderr, "unknown helper protocol [%s]\n\nValid helper protools:\n\n", helper_protocol);
2462
2463                 for (i=0; i<NUM_HELPER_MODES; i++) {
2464                         x_fprintf(x_stderr, "%s\n", stdio_helper_protocols[i].name);
2465                 }
2466
2467                 exit(1);
2468         }
2469
2470         if (!opt_username || !*opt_username) {
2471                 x_fprintf(x_stderr, "username must be specified!\n\n");
2472                 poptPrintHelp(pc, stderr, 0);
2473                 exit(1);
2474         }
2475
2476         if (opt_challenge.length) {
2477                 if (!check_auth_crap()) {
2478                         exit(1);
2479                 }
2480                 exit(0);
2481         }
2482
2483         if (!opt_password) {
2484                 opt_password = getpass("password: ");
2485         }
2486
2487         if (diagnostics) {
2488                 if (!diagnose_ntlm_auth()) {
2489                         return 1;
2490                 }
2491         } else {
2492                 fstring user;
2493
2494                 fstr_sprintf(user, "%s%c%s", opt_domain, winbind_separator(), opt_username);
2495                 if (!check_plaintext_auth(user, opt_password, True)) {
2496                         return 1;
2497                 }
2498         }
2499
2500         /* Exit code */
2501
2502         poptFreeContext(pc);
2503         TALLOC_FREE(frame);
2504         return 0;
2505 }