source4/auth/auth_sam.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2004
   5    Copyright (C) Gerald Carter                             2003
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23 #include "librpc/gen_ndr/ndr_samr.h"
  24 #include "system/time.h"
  25 #include "auth/auth.h"
  26 #include "lib/ldb/include/ldb.h"
  27
  28 #undef DBGC_CLASS
  29 #define DBGC_CLASS DBGC_AUTH
  30
  31 /****************************************************************************
  32  Do a specific test for an smb password being correct, given a smb_password and
  33  the lanman and NT responses.
  34 ****************************************************************************/
  35
  36 static NTSTATUS sam_password_ok(const struct auth_context *auth_context,
  37                                 TALLOC_CTX *mem_ctx,
  38                                 const char *username,
  39                                 uint16_t acct_flags,
  40                                 const struct samr_Password *lm_pwd,
  41                                 const struct samr_Password *nt_pwd,
  42                                 const struct auth_usersupplied_info *user_info,
  43                                 DATA_BLOB *user_sess_key,
  44                                 DATA_BLOB *lm_sess_key)
  45 {
  46         NTSTATUS status;
  47
  48         if (acct_flags & ACB_PWNOTREQ) {
  49                 if (lp_null_passwords()) {
  50                         DEBUG(3,("Account for user '%s' has no password and null passwords are allowed.\n",
  51                                  username));
  52                         return NT_STATUS_OK;
  53                 } else {
  54                         DEBUG(3,("Account for user '%s' has no password and null passwords are NOT allowed.\n",
  55                                  username));
  56                         return NT_STATUS_LOGON_FAILURE;
  57                 }
  58         }
  59
  60         status = ntlm_password_check(mem_ctx, &auth_context->challenge,
  61                                    &user_info->lm_resp, &user_info->nt_resp,
  62                                    &user_info->lm_interactive_password,
  63                                    &user_info->nt_interactive_password,
  64                                    username,
  65                                    user_info->smb_name.str,
  66                                    user_info->client_domain.str,
  67                                    lm_pwd->hash, nt_pwd->hash, user_sess_key, lm_sess_key);
  68
  69         if (NT_STATUS_IS_OK(status)) {
  70                 if (user_sess_key && user_sess_key->data) {
  71                         talloc_steal(auth_context, user_sess_key->data);
  72                 }
  73                 if (lm_sess_key && lm_sess_key->data) {
  74                         talloc_steal(auth_context, lm_sess_key->data);
  75                 }
  76         }
  77
  78         return status;
  79 }
  80
  81
  82 /****************************************************************************
  83  Do a specific test for a SAM_ACCOUNT being vaild for this connection
  84  (ie not disabled, expired and the like).
  85 ****************************************************************************/
  86
  87 static NTSTATUS sam_account_ok(TALLOC_CTX *mem_ctx,
  88                                const char *username,
  89                                uint16_t acct_flags,
  90                                NTTIME *acct_expiry,
  91                                NTTIME *must_change_time,
  92                                NTTIME *last_set_time,
  93                                const char *workstation_list,
  94                                const struct auth_usersupplied_info *user_info)
  95 {
  96         DEBUG(4,("sam_account_ok: Checking SMB password for user %s\n", username));
  97
  98         /* Quit if the account was disabled. */
  99         if (acct_flags & ACB_DISABLED) {
 100                 DEBUG(1,("sam_account_ok: Account for user '%s' was disabled.\n", username));
 101                 return NT_STATUS_ACCOUNT_DISABLED;
 102         }
 103
 104         /* Quit if the account was locked out. */
 105         if (acct_flags & ACB_AUTOLOCK) {
 106                 DEBUG(1,("sam_account_ok: Account for user %s was locked out.\n", username));
 107                 return NT_STATUS_ACCOUNT_LOCKED_OUT;
 108         }
 109
 110         /* Test account expire time */
 111         if ((*acct_expiry) != -1 && time(NULL) > nt_time_to_unix(*acct_expiry)) {
 112                 DEBUG(1,("sam_account_ok: Account for user '%s' has expired.\n", username));
 113                 DEBUG(3,("sam_account_ok: Account expired at '%s'.\n",
 114                          nt_time_string(mem_ctx, *acct_expiry)));
 115                 return NT_STATUS_ACCOUNT_EXPIRED;
 116         }
 117
 118         if (!(acct_flags & ACB_PWNOEXP)) {
 119
 120                 /* check for immediate expiry "must change at next logon" */
 121                 if (*must_change_time == 0 && *last_set_time != 0) {
 122                         DEBUG(1,("sam_account_ok: Account for user '%s' password must change!.\n",
 123                                  username));
 124                         return NT_STATUS_PASSWORD_MUST_CHANGE;
 125                 }
 126
 127                 /* check for expired password */
 128                 if ((*must_change_time) != 0 && nt_time_to_unix(*must_change_time) < time(NULL)) {
 129                         DEBUG(1,("sam_account_ok: Account for user '%s' password expired!.\n",
 130                                  username));
 131                         DEBUG(1,("sam_account_ok: Password expired at '%s' unix time.\n",
 132                                  nt_time_string(mem_ctx, *must_change_time)));
 133                         return NT_STATUS_PASSWORD_EXPIRED;
 134                 }
 135         }
 136
 137         /* Test workstation. Workstation list is comma separated. */
 138
 139         if (workstation_list && *workstation_list) {
 140                 BOOL invalid_ws = True;
 141                 const char *s = workstation_list;
 142
 143                 fstring tok;
 144
 145                 while (next_token(&s, tok, ",", sizeof(tok))) {
 146                         DEBUG(10,("sam_account_ok: checking for workstation match %s and %s (len=%d)\n",
 147                                   tok, user_info->wksta_name.str, user_info->wksta_name.len));
 148
 149                         if(strequal(tok, user_info->wksta_name.str)) {
 150                                 invalid_ws = False;
 151
 152                                 break;
 153                         }
 154                 }
 155
 156                 if (invalid_ws)
 157                         return NT_STATUS_INVALID_WORKSTATION;
 158         }
 159
 160         if (acct_flags & ACB_DOMTRUST) {
 161                 DEBUG(2,("sam_account_ok: Domain trust account %s denied by server\n", username));
 162                 return NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT;
 163         }
 164
 165         if (acct_flags & ACB_SVRTRUST) {
 166                 DEBUG(2,("sam_account_ok: Server trust account %s denied by server\n", username));
 167                 return NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT;
 168         }
 169
 170         if (acct_flags & ACB_WSTRUST) {
 171                 DEBUG(4,("sam_account_ok: Wksta trust account %s denied by server\n", username));
 172                 return NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT;
 173         }
 174
 175         return NT_STATUS_OK;
 176 }
 177
 178 /****************************************************************************
 179  Look for the specified user in the sam, return ldb result structures
 180 ****************************************************************************/
 181
 182 static NTSTATUS sam_search_user(const char *username, const char *domain,
 183                                 TALLOC_CTX *mem_ctx, void *sam_ctx,
 184                                 struct ldb_message ***ret_msgs,
 185                                 struct ldb_message ***ret_msgs_domain)
 186 {
 187         struct ldb_message **msgs;
 188         struct ldb_message **msgs_domain;
 189
 190         uint_t ret;
 191         uint_t ret_domain;
 192
 193         const char *domain_dn = NULL;
 194         const char *domain_sid;
 195
 196         const char *attrs[] = {"unicodePwd", "lmPwdHash", "ntPwdHash",
 197                                "userAccountControl",
 198                                "pwdLastSet",
 199                                "accountExpires",
 200                                "objectSid",
 201                                "userWorkstations",
 202
 203                                /* required for server_info, not access control: */
 204                                "sAMAccountName",
 205                                "displayName",
 206                                "scriptPath",
 207                                "profilePath",
 208                                "homeDirectory",
 209                                "homeDrive",
 210                                "lastLogon",
 211                                "lastLogoff",
 212                                "accountExpires",
 213                                "badPwdCount",
 214                                "logonCount",
 215                                "primaryGroupID",
 216                                NULL,
 217         };
 218
 219         const char *domain_attrs[] =  {"name", "objectSid"};
 220
 221         if (domain) {
 222                 /* find the domain's DN */
 223                 ret_domain = samdb_search(sam_ctx, mem_ctx, NULL, &msgs_domain, domain_attrs,
 224                                           "(&(|(realm=%s)(name=%s))(objectclass=domain))",
 225                                           domain, domain);
 226
 227                 if (ret_domain == 0) {
 228                         DEBUG(3,("check_sam_security: Couldn't find domain [%s] in passdb file.\n",
 229                                  domain));
 230                         return NT_STATUS_NO_SUCH_USER;
 231                 }
 232
 233                 if (ret_domain > 1) {
 234                         DEBUG(0,("Found %d records matching domain [%s]\n",
 235                                  ret_domain, domain));
 236                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 237                 }
 238
 239                 domain_dn = msgs_domain[0]->dn;
 240
 241         }
 242         /* pull the user attributes */
 243         ret = samdb_search(sam_ctx, mem_ctx, domain_dn, &msgs, attrs,
 244                            "(&(sAMAccountName=%s)(objectclass=user))",
 245                            username);
 246
 247         if (ret == 0) {
 248                 DEBUG(3,("check_sam_security: Couldn't find user [%s] in passdb file.\n",
 249                          username));
 250                 return NT_STATUS_NO_SUCH_USER;
 251         }
 252
 253         if (ret > 1) {
 254                 DEBUG(0,("Found %d records matching user [%s]\n", ret, username));
 255                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 256         }
 257
 258         if (!domain) {
 259                 domain_sid = samdb_result_sid_prefix(mem_ctx, msgs[0], "objectSid");
 260                 if (!domain_sid) {
 261                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 262                 }
 263
 264                 /* find the domain's DN */
 265                 ret_domain = samdb_search(sam_ctx, mem_ctx, NULL, &msgs_domain, domain_attrs,
 266                                           "(&(objectSid=%s)(objectclass=domain))",
 267                                           domain_sid);
 268
 269                 if (ret_domain == 0) {
 270                         DEBUG(3,("check_sam_security: Couldn't find domain [%s] in passdb file.\n",
 271                                  domain_sid));
 272                         return NT_STATUS_NO_SUCH_USER;
 273                 }
 274
 275                 if (ret_domain > 1) {
 276                         DEBUG(0,("Found %d records matching domain [%s]\n",
 277                                  ret_domain, domain_sid));
 278                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
 279                 }
 280
 281                 domain_dn = msgs_domain[0]->dn;
 282         }
 283         *ret_msgs = msgs;
 284         *ret_msgs_domain = msgs_domain;
 285
 286         return NT_STATUS_OK;
 287 }
 288
 289 NTSTATUS sam_check_password(const struct auth_context *auth_context,
 290                             const char *username,
 291                             TALLOC_CTX *mem_ctx, void *sam_ctx,
 292                             struct ldb_message **msgs,
 293                             const char *domain_dn,
 294                             const struct auth_usersupplied_info *user_info,
 295                             DATA_BLOB *user_sess_key, DATA_BLOB *lm_sess_key)
 296 {
 297
 298         uint16_t acct_flags;
 299         const char *workstation_list;
 300         NTTIME acct_expiry;
 301         NTTIME must_change_time;
 302         NTTIME last_set_time;
 303         struct samr_Password *lm_pwd, *nt_pwd;
 304
 305         NTSTATUS nt_status;
 306
 307
 308         acct_flags = samdb_result_acct_flags(msgs[0], "sAMAcctFlags");
 309
 310         /* Quit if the account was locked out. */
 311         if (acct_flags & ACB_AUTOLOCK) {
 312                 DEBUG(3,("check_sam_security: Account for user %s was locked out.\n",
 313                          username));
 314                 return NT_STATUS_ACCOUNT_LOCKED_OUT;
 315         }
 316
 317         if (!NT_STATUS_IS_OK(nt_status = samdb_result_passwords(mem_ctx, msgs[0],
 318                                                                 &lm_pwd, &nt_pwd))) {
 319                 return nt_status;
 320         }
 321
 322         nt_status = sam_password_ok(auth_context, mem_ctx,
 323                                     username, acct_flags,
 324                                     lm_pwd, nt_pwd,
 325                                     user_info, user_sess_key, lm_sess_key);
 326
 327         if (!NT_STATUS_IS_OK(nt_status)) {
 328                 return nt_status;
 329         }
 330
 331         acct_expiry = samdb_result_nttime(msgs[0], "accountExpires", 0);
 332         must_change_time = samdb_result_force_password_change(sam_ctx, mem_ctx,
 333                                                               domain_dn, msgs[0],
 334                                                               "pwdLastSet");
 335         last_set_time = samdb_result_nttime(msgs[0], "pwdLastSet", 0);
 336
 337         workstation_list = samdb_result_string(msgs[0], "userWorkstations", NULL);
 338
 339         nt_status = sam_account_ok(mem_ctx, username, acct_flags,
 340                                    &acct_expiry,
 341                                    &must_change_time,
 342                                    &last_set_time,
 343                                    workstation_list,
 344                                    user_info);
 345
 346         return nt_status;
 347 }
 348
 349 NTSTATUS sam_make_server_info(TALLOC_CTX *mem_ctx, void *sam_ctx,
 350                               struct ldb_message **msgs, struct ldb_message **msgs_domain,
 351                               struct auth_serversupplied_info **server_info)
 352 {
 353
 354         struct ldb_message **group_msgs;
 355         int group_ret;
 356         const char *group_attrs[3] = { "sAMAccountType", "objectSid", NULL };
 357         /* find list of sids */
 358         struct dom_sid **groupSIDs = NULL;
 359         struct dom_sid *user_sid;
 360         struct dom_sid *primary_group_sid;
 361         const char *sidstr;
 362         int i;
 363         uint_t rid;
 364
 365         NTSTATUS nt_status;
 366
 367         if (!NT_STATUS_IS_OK(nt_status = make_server_info(mem_ctx, server_info,
 368                                                           samdb_result_string(msgs[0], "sAMAccountName", "")))) {
 369                 DEBUG(0,("check_sam_security: make_server_info_sam() failed with '%s'\n", nt_errstr(nt_status)));
 370                 return nt_status;
 371         }
 372
 373         group_ret = samdb_search(sam_ctx,
 374                                  mem_ctx, NULL, &group_msgs, group_attrs,
 375                                  "(&(member=%s)(sAMAccountType=*))",
 376                                  msgs[0]->dn);
 377         if (group_ret == -1) {
 378                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 379         }
 380
 381         if (group_ret > 0 &&
 382             !(groupSIDs = talloc_array_p(*server_info, struct dom_sid *, group_ret))) {
 383                 talloc_free(*server_info);
 384                 return NT_STATUS_NO_MEMORY;
 385         }
 386
 387         /* Need to unroll some nested groups, but not aliases */
 388         for (i = 0; i < group_ret; i++) {
 389                 sidstr = ldb_msg_find_string(group_msgs[i], "objectSid", NULL);
 390                 groupSIDs[i] = dom_sid_parse_talloc(*server_info, sidstr);
 391         }
 392
 393         sidstr = ldb_msg_find_string(msgs[0], "objectSid", NULL);
 394         user_sid = dom_sid_parse_talloc(*server_info, sidstr);
 395         primary_group_sid = dom_sid_parse_talloc(*server_info, sidstr);
 396         rid = samdb_result_uint(msgs[0], "primaryGroupID", ~0);
 397         if (rid == ~0) {
 398                 if (group_ret > 0) {
 399                         primary_group_sid = groupSIDs[0];
 400                 } else {
 401                         primary_group_sid = NULL;
 402                 }
 403         } else {
 404                 primary_group_sid->sub_auths[primary_group_sid->num_auths-1] = rid;
 405         }
 406
 407         (*server_info)->user_sid = user_sid;
 408         (*server_info)->primary_group_sid = primary_group_sid;
 409
 410         (*server_info)->n_domain_groups = group_ret;
 411         (*server_info)->domain_groups = groupSIDs;
 412
 413         (*server_info)->account_name
 414                 = talloc_strdup(*server_info,
 415                                 samdb_result_string(msgs[0], "sAMAccountName", ""));
 416
 417         (*server_info)->domain
 418                 = talloc_strdup(*server_info,
 419                                 samdb_result_string(msgs_domain[0], "name", ""));
 420
 421         (*server_info)->full_name
 422                 = talloc_strdup(*server_info,
 423                                 samdb_result_string(msgs[0], "displayName", ""));
 424
 425         (*server_info)->logon_script
 426                 = talloc_strdup(*server_info,
 427                                 samdb_result_string(msgs[0], "scriptPath", ""));
 428         (*server_info)->profile_path
 429                 = talloc_strdup(*server_info,
 430                                 samdb_result_string(msgs[0], "profilePath", ""));
 431         (*server_info)->home_directory
 432                 = talloc_strdup(*server_info,
 433                                 samdb_result_string(msgs[0], "homeDirectory", ""));
 434
 435         (*server_info)->home_drive
 436                 = talloc_strdup(*server_info,
 437                                 samdb_result_string(msgs[0], "homeDrive", ""));
 438
 439         (*server_info)->last_logon = samdb_result_nttime(msgs[0], "lastLogon", 0);
 440         (*server_info)->last_logoff = samdb_result_nttime(msgs[0], "lastLogoff", 0);
 441         (*server_info)->acct_expiry = samdb_result_nttime(msgs[0], "accountExpires", 0);
 442         (*server_info)->last_password_change = samdb_result_nttime(msgs[0], "pwdLastSet", 0);
 443         (*server_info)->allow_password_change
 444                 = samdb_result_allow_password_change(sam_ctx, mem_ctx,
 445                                                      msgs_domain[0]->dn, msgs[0], "pwdLastSet");
 446         (*server_info)->force_password_change
 447                 = samdb_result_force_password_change(sam_ctx, mem_ctx,
 448                                                      msgs_domain[0]->dn, msgs[0], "pwdLastSet");
 449
 450         (*server_info)->logon_count = samdb_result_uint(msgs[0], "logonCount", 0);
 451         (*server_info)->bad_password_count = samdb_result_uint(msgs[0], "badPwdCount", 0);
 452
 453         (*server_info)->acct_flags = samdb_result_acct_flags(msgs[0], "userAccountControl");
 454
 455         (*server_info)->guest = False;
 456
 457         if (!(*server_info)->account_name
 458             || !(*server_info)->full_name
 459             || !(*server_info)->logon_script
 460             || !(*server_info)->profile_path
 461             || !(*server_info)->home_directory
 462             || !(*server_info)->home_drive) {
 463                 talloc_destroy(*server_info);
 464                 return NT_STATUS_NO_MEMORY;
 465         }
 466
 467         return nt_status;
 468 }
 469
 470 NTSTATUS sam_get_server_info(const char *username, const char *domain, TALLOC_CTX *mem_ctx,
 471                              struct auth_serversupplied_info **server_info)
 472 {
 473         NTSTATUS nt_status;
 474
 475         struct ldb_message **msgs;
 476         struct ldb_message **domain_msgs;
 477         void *sam_ctx;
 478
 479         sam_ctx = samdb_connect(mem_ctx);
 480         if (sam_ctx == NULL) {
 481                 return NT_STATUS_INVALID_SYSTEM_SERVICE;
 482         }
 483
 484         nt_status = sam_search_user(username, domain, mem_ctx, sam_ctx, &msgs, &domain_msgs);
 485         if (!NT_STATUS_IS_OK(nt_status)) {
 486                 return nt_status;
 487         }
 488
 489         nt_status = sam_make_server_info(mem_ctx, sam_ctx, msgs, domain_msgs, server_info);
 490         if (!NT_STATUS_IS_OK(nt_status)) {
 491                 return nt_status;
 492         }
 493
 494         return NT_STATUS_OK;
 495 }
 496
 497 static NTSTATUS check_sam_security_internals(const struct auth_context *auth_context,
 498                                              const char *domain,
 499                                              TALLOC_CTX *mem_ctx,
 500                                              const struct auth_usersupplied_info *user_info,
 501                                              struct auth_serversupplied_info **server_info)
 502 {
 503         /* mark this as 'not for me' */
 504         NTSTATUS nt_status = NT_STATUS_NOT_IMPLEMENTED;
 505         const char *username = user_info->internal_username.str;
 506         struct ldb_message **msgs;
 507         struct ldb_message **domain_msgs;
 508         void *sam_ctx;
 509         DATA_BLOB user_sess_key, lm_sess_key;
 510
 511         if (!username || !*username) {
 512                 return nt_status;
 513         }
 514
 515         sam_ctx = samdb_connect(mem_ctx);
 516         if (sam_ctx == NULL) {
 517                 return NT_STATUS_INVALID_SYSTEM_SERVICE;
 518         }
 519
 520         nt_status = sam_search_user(username, domain, mem_ctx, sam_ctx, &msgs, &domain_msgs);
 521         if (!NT_STATUS_IS_OK(nt_status)) {
 522                 return nt_status;
 523         }
 524
 525         nt_status = sam_check_password(auth_context, username, mem_ctx, sam_ctx, msgs, domain_msgs[0]->dn, user_info,
 526                                        &user_sess_key, &lm_sess_key);
 527         if (!NT_STATUS_IS_OK(nt_status)) {
 528                 return nt_status;
 529         }
 530
 531         nt_status = sam_make_server_info(mem_ctx, sam_ctx, msgs, domain_msgs, server_info);
 532         if (!NT_STATUS_IS_OK(nt_status)) {
 533                 return nt_status;
 534         }
 535
 536         talloc_reference(auth_context, *server_info);
 537
 538         (*server_info)->user_session_key = user_sess_key;
 539         (*server_info)->lm_session_key = lm_sess_key;
 540         return NT_STATUS_OK;
 541 }
 542
 543 static NTSTATUS check_sam_security(const struct auth_context *auth_context,
 544                                    void *my_private_data,
 545                                    TALLOC_CTX *mem_ctx,
 546                                    const struct auth_usersupplied_info *user_info,
 547                                    struct auth_serversupplied_info **server_info)
 548 {
 549         return check_sam_security_internals(auth_context, NULL,
 550                                             mem_ctx, user_info, server_info);
 551 }
 552
 553 /* module initialisation */
 554 static NTSTATUS auth_init_sam_ignoredomain(struct auth_context *auth_context,
 555                                            const char *param,
 556                                            struct auth_methods **auth_method)
 557 {
 558         if (!make_auth_methods(auth_context, auth_method)) {
 559                 return NT_STATUS_NO_MEMORY;
 560         }
 561
 562         (*auth_method)->auth = check_sam_security;
 563         (*auth_method)->name = "sam_ignoredomain";
 564         return NT_STATUS_OK;
 565 }
 566
 567
 568 /****************************************************************************
 569 Check SAM security (above) but with a few extra checks.
 570 ****************************************************************************/
 571
 572 static NTSTATUS check_samstrict_security(const struct auth_context *auth_context,
 573                                          void *my_private_data,
 574                                          TALLOC_CTX *mem_ctx,
 575                                          const struct auth_usersupplied_info *user_info,
 576                                          struct auth_serversupplied_info **server_info)
 577 {
 578         const char *domain;
 579         BOOL is_local_name, is_my_domain;
 580
 581         if (!user_info || !auth_context) {
 582                 return NT_STATUS_LOGON_FAILURE;
 583         }
 584
 585         is_local_name = is_myname(user_info->domain.str);
 586         is_my_domain  = strequal(user_info->domain.str, lp_workgroup());
 587
 588         /* check whether or not we service this domain/workgroup name */
 589
 590         switch ( lp_server_role() ) {
 591                 case ROLE_STANDALONE:
 592                 case ROLE_DOMAIN_MEMBER:
 593                         if ( !is_local_name ) {
 594                                 DEBUG(6,("check_samstrict_security: %s is not one of my local names (%s)\n",
 595                                         user_info->domain.str, (lp_server_role() == ROLE_DOMAIN_MEMBER
 596                                         ? "ROLE_DOMAIN_MEMBER" : "ROLE_STANDALONE") ));
 597                                 return NT_STATUS_NOT_IMPLEMENTED;
 598                         }
 599                         domain = lp_netbios_name();
 600                         break;
 601                 case ROLE_DOMAIN_PDC:
 602                 case ROLE_DOMAIN_BDC:
 603                         if ( !is_local_name && !is_my_domain ) {
 604                                 DEBUG(6,("check_samstrict_security: %s is not one of my local names or domain name (DC)\n",
 605                                         user_info->domain.str));
 606                                 return NT_STATUS_NOT_IMPLEMENTED;
 607                         }
 608                         domain = lp_workgroup();
 609                         break;
 610                 default: /* name is ok */
 611                         domain = user_info->domain.str;
 612                         break;
 613         }
 614
 615         return check_sam_security_internals(auth_context, domain, mem_ctx, user_info, server_info);
 616 }
 617
 618 /* module initialisation */
 619 static NTSTATUS auth_init_sam(struct auth_context *auth_context,
 620                               const char *param,
 621                               struct auth_methods **auth_method)
 622 {
 623         if (!make_auth_methods(auth_context, auth_method)) {
 624                 return NT_STATUS_NO_MEMORY;
 625         }
 626
 627         (*auth_method)->auth = check_samstrict_security;
 628         (*auth_method)->name = "sam";
 629         return NT_STATUS_OK;
 630 }
 631
 632 NTSTATUS auth_sam_init(void)
 633 {
 634         NTSTATUS ret;
 635         struct auth_operations ops;
 636
 637         ops.name = "sam";
 638         ops.init = auth_init_sam;
 639         ret = auth_register(&ops);
 640         if (!NT_STATUS_IS_OK(ret)) {
 641                 DEBUG(0,("Failed to register '%s' auth backend!\n",
 642                         ops.name));
 643                 return ret;
 644         }
 645
 646         ops.name = "sam_ignoredomain";
 647         ops.init = auth_init_sam_ignoredomain;
 648         ret = auth_register(&ops);
 649         if (!NT_STATUS_IS_OK(ret)) {
 650                 DEBUG(0,("Failed to register '%s' auth backend!\n",
 651                         ops.name));
 652                 return ret;
 653         }
 654
 655         return ret;
 656 }