source/passdb/pdb_ldap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau        1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9    Copyright (C) Simo Sorce                     2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 */
  25
  26 /* TODO:
  27 *  persistent connections: if using NSS LDAP, many connections are made
  28 *      however, using only one within Samba would be nice
  29 *
  30 *  Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
  31 *
  32 *  Other LDAP based login attributes: accountExpires, etc.
  33 *  (should be the domain of Samba proper, but the sam_password/struct samu
  34 *  structures don't have fields for some of these attributes)
  35 *
  36 *  SSL is done, but can't get the certificate based authentication to work
  37 *  against on my test platform (Linux 2.4, OpenLDAP 2.x)
  38 */
  39
  40 /* NOTE: this will NOT work against an Active Directory server
  41 *  due to the fact that the two password fields cannot be retrieved
  42 *  from a server; recommend using security = domain in this situation
  43 *  and/or winbind
  44 */
  45
  46 #include "includes.h"
  47
  48 #undef DBGC_CLASS
  49 #define DBGC_CLASS DBGC_PASSDB
  50
  51 #include <lber.h>
  52 #include <ldap.h>
  53
  54 /*
  55  * Work around versions of the LDAP client libs that don't have the OIDs
  56  * defined, or have them defined under the old name.
  57  * This functionality is really a factor of the server, not the client
  58  *
  59  */
  60
  61 #if defined(LDAP_EXOP_X_MODIFY_PASSWD) && !defined(LDAP_EXOP_MODIFY_PASSWD)
  62 #define LDAP_EXOP_MODIFY_PASSWD LDAP_EXOP_X_MODIFY_PASSWD
  63 #elif !defined(LDAP_EXOP_MODIFY_PASSWD)
  64 #define LDAP_EXOP_MODIFY_PASSWD "1.3.6.1.4.1.4203.1.11.1"
  65 #endif
  66
  67 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_ID) && !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  68 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID LDAP_EXOP_X_MODIFY_PASSWD_ID
  69 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  70 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID        ((ber_tag_t) 0x80U)
  71 #endif
  72
  73 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_NEW) && !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  74 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW LDAP_EXOP_X_MODIFY_PASSWD_NEW
  75 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  76 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW       ((ber_tag_t) 0x82U)
  77 #endif
  78
  79
  80 #include "smbldap.h"
  81
  82 /**********************************************************************
  83  Simple helper function to make stuff better readable
  84  **********************************************************************/
  85
  86 static LDAP *priv2ld(struct ldapsam_privates *priv)
  87 {
  88         return priv->smbldap_state->ldap_struct;
  89 }
  90
  91 /**********************************************************************
  92  Get the attribute name given a user schame version.
  93  **********************************************************************/
  94
  95 static const char* get_userattr_key2string( int schema_ver, int key )
  96 {
  97         switch ( schema_ver ) {
  98                 case SCHEMAVER_SAMBAACCOUNT:
  99                         return get_attr_key2string( attrib_map_v22, key );
 100
 101                 case SCHEMAVER_SAMBASAMACCOUNT:
 102                         return get_attr_key2string( attrib_map_v30, key );
 103
 104                 default:
 105                         DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
 106                         break;
 107         }
 108         return NULL;
 109 }
 110
 111 /**********************************************************************
 112  Return the list of attribute names given a user schema version.
 113 **********************************************************************/
 114
 115 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
 116 {
 117         switch ( schema_ver ) {
 118                 case SCHEMAVER_SAMBAACCOUNT:
 119                         return get_attr_list( mem_ctx, attrib_map_v22 );
 120
 121                 case SCHEMAVER_SAMBASAMACCOUNT:
 122                         return get_attr_list( mem_ctx, attrib_map_v30 );
 123                 default:
 124                         DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
 125                         break;
 126         }
 127
 128         return NULL;
 129 }
 130
 131 /**************************************************************************
 132  Return the list of attribute names to delete given a user schema version.
 133 **************************************************************************/
 134
 135 static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
 136                                               int schema_ver )
 137 {
 138         switch ( schema_ver ) {
 139                 case SCHEMAVER_SAMBAACCOUNT:
 140                         return get_attr_list( mem_ctx,
 141                                               attrib_map_to_delete_v22 );
 142
 143                 case SCHEMAVER_SAMBASAMACCOUNT:
 144                         return get_attr_list( mem_ctx,
 145                                               attrib_map_to_delete_v30 );
 146                 default:
 147                         DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
 148                         break;
 149         }
 150
 151         return NULL;
 152 }
 153
 154
 155 /*******************************************************************
 156  Generate the LDAP search filter for the objectclass based on the
 157  version of the schema we are using.
 158 ******************************************************************/
 159
 160 static const char* get_objclass_filter( int schema_ver )
 161 {
 162         fstring objclass_filter;
 163         char *result;
 164
 165         switch( schema_ver ) {
 166                 case SCHEMAVER_SAMBAACCOUNT:
 167                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 168                         break;
 169                 case SCHEMAVER_SAMBASAMACCOUNT:
 170                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 171                         break;
 172                 default:
 173                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 174                         objclass_filter[0] = '\0';
 175                         break;
 176         }
 177
 178         result = talloc_strdup(talloc_tos(), objclass_filter);
 179         SMB_ASSERT(result != NULL);
 180         return result;
 181 }
 182
 183 /*****************************************************************
 184  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 185 ******************************************************************/
 186
 187 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 188 {
 189         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 190         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 191         LDAPMessage *msg = NULL;
 192         LDAPMessage *entry = NULL;
 193         TALLOC_CTX *mem_ctx;
 194         char **values = NULL;
 195         int rc, num_result, num_values, rid;
 196         char *suffix = NULL;
 197         char *tok;
 198         const char *p;
 199         const char **attrs;
 200
 201         /* Unfortunatly there is no proper way to detect syncrepl-support in
 202          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 203          * but do not show up in the root-DSE yet. Neither we can query the
 204          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 205          * objectclass. Currently we require lp_ldap_suffix() to show up as
 206          * namingContext.  -  Guenther
 207          */
 208
 209         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 210                 return ntstatus;
 211         }
 212
 213         if (!seq_num) {
 214                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 215                 return ntstatus;
 216         }
 217
 218         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 219                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 220                          "as top-level namingContext\n", lp_ldap_suffix()));
 221                 return ntstatus;
 222         }
 223
 224         mem_ctx = talloc_init("ldapsam_get_seq_num");
 225
 226         if (mem_ctx == NULL)
 227                 return NT_STATUS_NO_MEMORY;
 228
 229         if ((attrs = TALLOC_ARRAY(mem_ctx, const char *, 2)) == NULL) {
 230                 ntstatus = NT_STATUS_NO_MEMORY;
 231                 goto done;
 232         }
 233
 234         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 235         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 236         if (rid > 0) {
 237
 238                 /* consumer syncreplCookie: */
 239                 /* csn=20050126161620Z#0000001#00#00000 */
 240                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 241                 attrs[1] = NULL;
 242                 suffix = talloc_asprintf(mem_ctx,
 243                                 "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 244                 if (!suffix) {
 245                         ntstatus = NT_STATUS_NO_MEMORY;
 246                         goto done;
 247                 }
 248         } else {
 249
 250                 /* provider contextCSN */
 251                 /* 20050126161620Z#000009#00#000000 */
 252                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 253                 attrs[1] = NULL;
 254                 suffix = talloc_asprintf(mem_ctx,
 255                                 "cn=ldapsync,%s", lp_ldap_suffix());
 256
 257                 if (!suffix) {
 258                         ntstatus = NT_STATUS_NO_MEMORY;
 259                         goto done;
 260                 }
 261         }
 262
 263         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 264                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 265
 266         if (rc != LDAP_SUCCESS) {
 267                 goto done;
 268         }
 269
 270         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 271         if (num_result != 1) {
 272                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 273                 goto done;
 274         }
 275
 276         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 277         if (entry == NULL) {
 278                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 279                 goto done;
 280         }
 281
 282         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 283         if (values == NULL) {
 284                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 285                 goto done;
 286         }
 287
 288         num_values = ldap_count_values(values);
 289         if (num_values == 0) {
 290                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 291                 goto done;
 292         }
 293
 294         p = values[0];
 295         if (!next_token_talloc(mem_ctx, &p, &tok, "#")) {
 296                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 297                 goto done;
 298         }
 299
 300         p = tok;
 301         if (!strncmp(p, "csn=", strlen("csn=")))
 302                 p += strlen("csn=");
 303
 304         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 305
 306         *seq_num = generalized_to_unix_time(p);
 307
 308         /* very basic sanity check */
 309         if (*seq_num <= 0) {
 310                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 311                         (int)*seq_num));
 312                 goto done;
 313         }
 314
 315         ntstatus = NT_STATUS_OK;
 316
 317  done:
 318         if (values != NULL)
 319                 ldap_value_free(values);
 320         if (msg != NULL)
 321                 ldap_msgfree(msg);
 322         if (mem_ctx)
 323                 talloc_destroy(mem_ctx);
 324
 325         return ntstatus;
 326 }
 327
 328 /*******************************************************************
 329  Run the search by name.
 330 ******************************************************************/
 331
 332 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 333                                           const char *user,
 334                                           LDAPMessage ** result,
 335                                           const char **attr)
 336 {
 337         char *filter = NULL;
 338         char *escape_user = escape_ldap_string_alloc(user);
 339         int ret = -1;
 340
 341         if (!escape_user) {
 342                 return LDAP_NO_MEMORY;
 343         }
 344
 345         /*
 346          * in the filter expression, replace %u with the real name
 347          * so in ldap filter, %u MUST exist :-)
 348          */
 349         filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
 350                 get_objclass_filter(ldap_state->schema_ver));
 351         if (!filter) {
 352                 return LDAP_NO_MEMORY;
 353         }
 354         /*
 355          * have to use this here because $ is filtered out
 356          * in string_sub
 357          */
 358
 359         filter = talloc_all_string_sub(talloc_tos(),
 360                                 filter, "%u", escape_user);
 361         if (!filter) {
 362                 return LDAP_NO_MEMORY;
 363         }
 364         SAFE_FREE(escape_user);
 365
 366         ret = smbldap_search_suffix(ldap_state->smbldap_state,
 367                         filter, attr, result);
 368         TALLOC_FREE(filter);
 369         return ret;
 370 }
 371
 372 /*******************************************************************
 373  Run the search by rid.
 374 ******************************************************************/
 375
 376 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 377                                          uint32 rid, LDAPMessage ** result,
 378                                          const char **attr)
 379 {
 380         char *filter = NULL;
 381         int rc;
 382
 383         filter = talloc_asprintf(talloc_tos(), "(&(rid=%i)%s)", rid,
 384                 get_objclass_filter(ldap_state->schema_ver));
 385         if (!filter) {
 386                 return LDAP_NO_MEMORY;
 387         }
 388
 389         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 390                         filter, attr, result);
 391         TALLOC_FREE(filter);
 392         return rc;
 393 }
 394
 395 /*******************************************************************
 396  Run the search by SID.
 397 ******************************************************************/
 398
 399 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 400                                  const DOM_SID *sid, LDAPMessage ** result,
 401                                  const char **attr)
 402 {
 403         char *filter = NULL;
 404         int rc;
 405         fstring sid_string;
 406
 407         filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
 408                 get_userattr_key2string(ldap_state->schema_ver,
 409                         LDAP_ATTR_USER_SID),
 410                 sid_to_string(sid_string, sid),
 411                 get_objclass_filter(ldap_state->schema_ver));
 412         if (!filter) {
 413                 return LDAP_NO_MEMORY;
 414         }
 415
 416         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 417                         filter, attr, result);
 418
 419         TALLOC_FREE(filter);
 420         return rc;
 421 }
 422
 423 /*******************************************************************
 424  Delete complete object or objectclass and attrs from
 425  object found in search_result depending on lp_ldap_delete_dn
 426 ******************************************************************/
 427
 428 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 429                                 TALLOC_CTX *mem_ctx,
 430                                 LDAPMessage *entry,
 431                                 const char *objectclass,
 432                                 const char **attrs)
 433 {
 434         LDAPMod **mods = NULL;
 435         char *name;
 436         const char *dn;
 437         BerElement *ptr = NULL;
 438
 439         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 440         if (dn == NULL) {
 441                 return LDAP_NO_MEMORY;
 442         }
 443
 444         if (lp_ldap_delete_dn()) {
 445                 return smbldap_delete(priv->smbldap_state, dn);
 446         }
 447
 448         /* Ok, delete only the SAM attributes */
 449
 450         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 451              name != NULL;
 452              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 453                 const char **attrib;
 454
 455                 /* We are only allowed to delete the attributes that
 456                    really exist. */
 457
 458                 for (attrib = attrs; *attrib != NULL; attrib++) {
 459                         if (strequal(*attrib, name)) {
 460                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 461                                            "attribute %s\n", name));
 462                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 463                                                 NULL);
 464                         }
 465                 }
 466                 ldap_memfree(name);
 467         }
 468
 469         if (ptr != NULL) {
 470                 ber_free(ptr, 0);
 471         }
 472
 473         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 474         talloc_autofree_ldapmod(mem_ctx, mods);
 475
 476         return smbldap_modify(priv->smbldap_state, dn, mods);
 477 }
 478
 479 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 480 {
 481         char *temp;
 482         struct tm tm;
 483
 484         temp = smbldap_talloc_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 485                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 486                         talloc_tos());
 487         if (!temp) {
 488                 return (time_t) 0;
 489         }
 490
 491         if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
 492                 DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
 493                         (char*)temp));
 494                 TALLOC_FREE(temp);
 495                 return (time_t) 0;
 496         }
 497         TALLOC_FREE(temp);
 498         tzset();
 499         return timegm(&tm);
 500 }
 501
 502 /**********************************************************************
 503  Initialize struct samu from an LDAP query.
 504  (Based on init_sam_from_buffer in pdb_tdb.c)
 505 *********************************************************************/
 506
 507 static bool init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 508                                 struct samu * sampass,
 509                                 LDAPMessage * entry)
 510 {
 511         time_t  logon_time,
 512                         logoff_time,
 513                         kickoff_time,
 514                         pass_last_set_time,
 515                         pass_can_change_time,
 516                         pass_must_change_time,
 517                         ldap_entry_time,
 518                         bad_password_time;
 519         char *username = NULL,
 520                         *domain = NULL,
 521                         *nt_username = NULL,
 522                         *fullname = NULL,
 523                         *homedir = NULL,
 524                         *dir_drive = NULL,
 525                         *logon_script = NULL,
 526                         *profile_path = NULL,
 527                         *acct_desc = NULL,
 528                         *workstations = NULL,
 529                         *munged_dial = NULL;
 530         uint32          user_rid;
 531         uint8           smblmpwd[LM_HASH_LEN],
 532                         smbntpwd[NT_HASH_LEN];
 533         bool            use_samba_attrs = True;
 534         uint32          acct_ctrl = 0;
 535         uint16          logon_divs;
 536         uint16          bad_password_count = 0,
 537                         logon_count = 0;
 538         uint32 hours_len;
 539         uint8           hours[MAX_HOURS_LEN];
 540         char *temp = NULL;
 541         LOGIN_CACHE     *cache_entry = NULL;
 542         uint32          pwHistLen;
 543         bool expand_explicit = lp_passdb_expand_explicit();
 544         bool ret = false;
 545         TALLOC_CTX *ctx = talloc_init("init_sam_from_ldap");
 546
 547         if (!ctx) {
 548                 return false;
 549         }
 550         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 551                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 552                 goto fn_exit;
 553         }
 554
 555         if (priv2ld(ldap_state) == NULL) {
 556                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 557                           "ldap_struct is NULL!\n"));
 558                 goto fn_exit;
 559         }
 560
 561         if (!(username = smbldap_talloc_single_attribute(priv2ld(ldap_state),
 562                                         entry,
 563                                         "uid",
 564                                         ctx))) {
 565                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 566                           "this user!\n"));
 567                 goto fn_exit;
 568         }
 569
 570         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 571
 572         nt_username = talloc_strdup(ctx, username);
 573         if (!nt_username) {
 574                 goto fn_exit;
 575         }
 576
 577         domain = talloc_strdup(ctx, ldap_state->domain_name);
 578         if (!domain) {
 579                 goto fn_exit;
 580         }
 581
 582         pdb_set_username(sampass, username, PDB_SET);
 583
 584         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 585         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 586
 587         /* deal with different attributes between the schema first */
 588
 589         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 590                 if ((temp = smbldap_talloc_single_attribute(
 591                                 ldap_state->smbldap_state->ldap_struct,
 592                                 entry,
 593                                 get_userattr_key2string(ldap_state->schema_ver,
 594                                         LDAP_ATTR_USER_SID),
 595                                 ctx))!=NULL) {
 596                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 597                 }
 598         } else {
 599                 if ((temp = smbldap_talloc_single_attribute(
 600                                 ldap_state->smbldap_state->ldap_struct,
 601                                 entry,
 602                                 get_userattr_key2string(ldap_state->schema_ver,
 603                                         LDAP_ATTR_USER_RID),
 604                                 ctx))!=NULL) {
 605                         user_rid = (uint32)atol(temp);
 606                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 607                 }
 608         }
 609
 610         if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
 611                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 612                         get_userattr_key2string(ldap_state->schema_ver,
 613                                 LDAP_ATTR_USER_SID),
 614                         get_userattr_key2string(ldap_state->schema_ver,
 615                                 LDAP_ATTR_USER_RID),
 616                         username));
 617                 return False;
 618         }
 619
 620         temp = smbldap_talloc_single_attribute(
 621                         ldap_state->smbldap_state->ldap_struct,
 622                         entry,
 623                         get_userattr_key2string(ldap_state->schema_ver,
 624                                 LDAP_ATTR_PWD_LAST_SET),
 625                         ctx);
 626         if (temp) {
 627                 pass_last_set_time = (time_t) atol(temp);
 628                 pdb_set_pass_last_set_time(sampass,
 629                                 pass_last_set_time, PDB_SET);
 630         }
 631
 632         temp = smbldap_talloc_single_attribute(
 633                         ldap_state->smbldap_state->ldap_struct,
 634                         entry,
 635                         get_userattr_key2string(ldap_state->schema_ver,
 636                                 LDAP_ATTR_LOGON_TIME),
 637                         ctx);
 638         if (temp) {
 639                 logon_time = (time_t) atol(temp);
 640                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 641         }
 642
 643         temp = smbldap_talloc_single_attribute(
 644                         ldap_state->smbldap_state->ldap_struct,
 645                         entry,
 646                         get_userattr_key2string(ldap_state->schema_ver,
 647                                 LDAP_ATTR_LOGOFF_TIME),
 648                         ctx);
 649         if (temp) {
 650                 logoff_time = (time_t) atol(temp);
 651                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 652         }
 653
 654         temp = smbldap_talloc_single_attribute(
 655                         ldap_state->smbldap_state->ldap_struct,
 656                         entry,
 657                         get_userattr_key2string(ldap_state->schema_ver,
 658                                 LDAP_ATTR_KICKOFF_TIME),
 659                         ctx);
 660         if (temp) {
 661                 kickoff_time = (time_t) atol(temp);
 662                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 663         }
 664
 665         temp = smbldap_talloc_single_attribute(
 666                         ldap_state->smbldap_state->ldap_struct,
 667                         entry,
 668                         get_userattr_key2string(ldap_state->schema_ver,
 669                                 LDAP_ATTR_PWD_CAN_CHANGE),
 670                         ctx);
 671         if (temp) {
 672                 pass_can_change_time = (time_t) atol(temp);
 673                 pdb_set_pass_can_change_time(sampass,
 674                                 pass_can_change_time, PDB_SET);
 675         }
 676
 677         temp = smbldap_talloc_single_attribute(
 678                         ldap_state->smbldap_state->ldap_struct,
 679                         entry,
 680                         get_userattr_key2string(ldap_state->schema_ver,
 681                                 LDAP_ATTR_PWD_MUST_CHANGE),
 682                         ctx);
 683         if (temp) {
 684                 pass_must_change_time = (time_t) atol(temp);
 685                 pdb_set_pass_must_change_time(sampass,
 686                                 pass_must_change_time, PDB_SET);
 687         }
 688
 689         /* recommend that 'gecos' and 'displayName' should refer to the same
 690          * attribute OID.  userFullName depreciated, only used by Samba
 691          * primary rules of LDAP: don't make a new attribute when one is already defined
 692          * that fits your needs; using cn then displayName rather than 'userFullName'
 693          */
 694
 695         fullname = smbldap_talloc_single_attribute(
 696                         ldap_state->smbldap_state->ldap_struct,
 697                         entry,
 698                         get_userattr_key2string(ldap_state->schema_ver,
 699                                 LDAP_ATTR_DISPLAY_NAME),
 700                         ctx);
 701         if (fullname) {
 702                 pdb_set_fullname(sampass, fullname, PDB_SET);
 703         } else {
 704                 fullname = smbldap_talloc_single_attribute(
 705                                 ldap_state->smbldap_state->ldap_struct,
 706                                 entry,
 707                                 get_userattr_key2string(ldap_state->schema_ver,
 708                                         LDAP_ATTR_CN),
 709                                 ctx);
 710                 if (fullname) {
 711                         pdb_set_fullname(sampass, fullname, PDB_SET);
 712                 }
 713         }
 714
 715         dir_drive = smbldap_talloc_single_attribute(
 716                         ldap_state->smbldap_state->ldap_struct,
 717                         entry,
 718                         get_userattr_key2string(ldap_state->schema_ver,
 719                                 LDAP_ATTR_HOME_DRIVE),
 720                         ctx);
 721         if (dir_drive) {
 722                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 723         } else {
 724                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 725         }
 726
 727         homedir = smbldap_talloc_single_attribute(
 728                         ldap_state->smbldap_state->ldap_struct,
 729                         entry,
 730                         get_userattr_key2string(ldap_state->schema_ver,
 731                                 LDAP_ATTR_HOME_PATH),
 732                         ctx);
 733         if (homedir) {
 734                 if (expand_explicit) {
 735                         homedir = talloc_sub_basic(ctx,
 736                                                 username,
 737                                                 domain,
 738                                                 homedir);
 739                         if (!homedir) {
 740                                 goto fn_exit;
 741                         }
 742                 }
 743                 pdb_set_homedir(sampass, homedir, PDB_SET);
 744         } else {
 745                 pdb_set_homedir(sampass,
 746                         talloc_sub_basic(ctx, username, domain,
 747                                          lp_logon_home()),
 748                         PDB_DEFAULT);
 749         }
 750
 751         logon_script = smbldap_talloc_single_attribute(
 752                         ldap_state->smbldap_state->ldap_struct,
 753                         entry,
 754                         get_userattr_key2string(ldap_state->schema_ver,
 755                                 LDAP_ATTR_LOGON_SCRIPT),
 756                         ctx);
 757         if (logon_script) {
 758                 if (expand_explicit) {
 759                         logon_script = talloc_sub_basic(ctx,
 760                                                 username,
 761                                                 domain,
 762                                                 logon_script);
 763                         if (!logon_script) {
 764                                 goto fn_exit;
 765                         }
 766                 }
 767                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
 768         } else {
 769                 pdb_set_logon_script(sampass,
 770                         talloc_sub_basic(ctx, username, domain,
 771                                          lp_logon_script()),
 772                         PDB_DEFAULT );
 773         }
 774
 775         profile_path = smbldap_talloc_single_attribute(
 776                         ldap_state->smbldap_state->ldap_struct,
 777                         entry,
 778                         get_userattr_key2string(ldap_state->schema_ver,
 779                                 LDAP_ATTR_PROFILE_PATH),
 780                         ctx);
 781         if (profile_path) {
 782                 if (expand_explicit) {
 783                         profile_path = talloc_sub_basic(ctx,
 784                                                 username,
 785                                                 domain,
 786                                                 profile_path);
 787                         if (!profile_path) {
 788                                 goto fn_exit;
 789                         }
 790                 }
 791                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
 792         } else {
 793                 pdb_set_profile_path(sampass,
 794                         talloc_sub_basic(ctx, username, domain,
 795                                           lp_logon_path()),
 796                         PDB_DEFAULT );
 797         }
 798
 799         acct_desc = smbldap_talloc_single_attribute(
 800                         ldap_state->smbldap_state->ldap_struct,
 801                         entry,
 802                         get_userattr_key2string(ldap_state->schema_ver,
 803                                 LDAP_ATTR_DESC),
 804                         ctx);
 805         if (acct_desc) {
 806                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 807         }
 808
 809         workstations = smbldap_talloc_single_attribute(
 810                         ldap_state->smbldap_state->ldap_struct,
 811                         entry,
 812                         get_userattr_key2string(ldap_state->schema_ver,
 813                                 LDAP_ATTR_USER_WKS),
 814                         ctx);
 815         if (workstations) {
 816                 pdb_set_workstations(sampass, workstations, PDB_SET);
 817         }
 818
 819         munged_dial = smbldap_talloc_single_attribute(
 820                         ldap_state->smbldap_state->ldap_struct,
 821                         entry,
 822                         get_userattr_key2string(ldap_state->schema_ver,
 823                                 LDAP_ATTR_MUNGED_DIAL),
 824                         ctx);
 825         if (munged_dial) {
 826                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 827         }
 828
 829         /* FIXME: hours stuff should be cleaner */
 830
 831         logon_divs = 168;
 832         hours_len = 21;
 833         memset(hours, 0xff, hours_len);
 834
 835         if (ldap_state->is_nds_ldap) {
 836                 char *user_dn;
 837                 size_t pwd_len;
 838                 char clear_text_pw[512];
 839
 840                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 841                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 842                 user_dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
 843                 if (user_dn != NULL) {
 844                         DEBUG(3, ("init_sam_from_ldap: smbldap_get_dn(%s) returned '%s'\n", username, user_dn));
 845
 846                         pwd_len = sizeof(clear_text_pw);
 847                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 848                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 849                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 850                                         SAFE_FREE(user_dn);
 851                                         return False;
 852                                 }
 853                                 ZERO_STRUCT(smblmpwd);
 854                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 855                                         SAFE_FREE(user_dn);
 856                                         return False;
 857                                 }
 858                                 ZERO_STRUCT(smbntpwd);
 859                                 use_samba_attrs = False;
 860                         }
 861
 862                         SAFE_FREE(user_dn);
 863
 864                 } else {
 865                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 866                 }
 867         }
 868
 869         if (use_samba_attrs) {
 870                 temp = smbldap_talloc_single_attribute(
 871                                 ldap_state->smbldap_state->ldap_struct,
 872                                 entry,
 873                                 get_userattr_key2string(ldap_state->schema_ver,
 874                                         LDAP_ATTR_LMPW),
 875                                 ctx);
 876                 if (temp) {
 877                         pdb_gethexpwd(temp, smblmpwd);
 878                         memset((char *)temp, '\0', strlen(temp)+1);
 879                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 880                                 goto fn_exit;
 881                         }
 882                         ZERO_STRUCT(smblmpwd);
 883                 }
 884
 885                 temp = smbldap_talloc_single_attribute(
 886                                 ldap_state->smbldap_state->ldap_struct,
 887                                 entry,
 888                                 get_userattr_key2string(ldap_state->schema_ver,
 889                                         LDAP_ATTR_NTPW),
 890                                 ctx);
 891                 if (temp) {
 892                         pdb_gethexpwd(temp, smbntpwd);
 893                         memset((char *)temp, '\0', strlen(temp)+1);
 894                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 895                                 goto fn_exit;
 896                         }
 897                         ZERO_STRUCT(smbntpwd);
 898                 }
 899         }
 900
 901         pwHistLen = 0;
 902
 903         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
 904         if (pwHistLen > 0){
 905                 uint8 *pwhist = NULL;
 906                 int i;
 907                 char *history_string = TALLOC_ARRAY(ctx, char,
 908                                                 MAX_PW_HISTORY_LEN*64);
 909
 910                 if (!history_string) {
 911                         goto fn_exit;
 912                 }
 913
 914                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 915
 916                 if ((pwhist = TALLOC_ARRAY(ctx, uint8,
 917                                         pwHistLen * PW_HISTORY_ENTRY_LEN)) ==
 918                                 NULL){
 919                         DEBUG(0, ("init_sam_from_ldap: talloc failed!\n"));
 920                         goto fn_exit;
 921                 }
 922                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 923
 924                 if (smbldap_get_single_attribute(
 925                                 ldap_state->smbldap_state->ldap_struct,
 926                                 entry,
 927                                 get_userattr_key2string(ldap_state->schema_ver,
 928                                         LDAP_ATTR_PWD_HISTORY),
 929                                 history_string,
 930                                 MAX_PW_HISTORY_LEN*64)) {
 931                         bool hex_failed = false;
 932                         for (i = 0; i < pwHistLen; i++){
 933                                 /* Get the 16 byte salt. */
 934                                 if (!pdb_gethexpwd(&history_string[i*64],
 935                                         &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 936                                         hex_failed = true;
 937                                         break;
 938                                 }
 939                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 940                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 941                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+
 942                                                 PW_HISTORY_SALT_LEN])) {
 943                                         hex_failed = True;
 944                                         break;
 945                                 }
 946                         }
 947                         if (hex_failed) {
 948                                 DEBUG(0,("init_sam_from_ldap: Failed to get password history for user %s\n",
 949                                         username));
 950                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 951                         }
 952                 }
 953                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 954                         goto fn_exit;
 955                 }
 956         }
 957
 958         temp = smbldap_talloc_single_attribute(
 959                         ldap_state->smbldap_state->ldap_struct,
 960                         entry,
 961                         get_userattr_key2string(ldap_state->schema_ver,
 962                                 LDAP_ATTR_ACB_INFO),
 963                         ctx);
 964         if (temp) {
 965                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 966
 967                 if (acct_ctrl == 0) {
 968                         acct_ctrl |= ACB_NORMAL;
 969                 }
 970
 971                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 972         } else {
 973                 acct_ctrl |= ACB_NORMAL;
 974         }
 975
 976         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 977         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 978
 979         temp = smbldap_talloc_single_attribute(
 980                         ldap_state->smbldap_state->ldap_struct,
 981                         entry,
 982                         get_userattr_key2string(ldap_state->schema_ver,
 983                                 LDAP_ATTR_BAD_PASSWORD_COUNT),
 984                         ctx);
 985         if (temp) {
 986                 bad_password_count = (uint32) atol(temp);
 987                 pdb_set_bad_password_count(sampass,
 988                                 bad_password_count, PDB_SET);
 989         }
 990
 991         temp = smbldap_talloc_single_attribute(
 992                         ldap_state->smbldap_state->ldap_struct,
 993                         entry,
 994                         get_userattr_key2string(ldap_state->schema_ver,
 995                                 LDAP_ATTR_BAD_PASSWORD_TIME),
 996                         ctx);
 997         if (temp) {
 998                 bad_password_time = (time_t) atol(temp);
 999                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1000         }
1001
1002
1003         temp = smbldap_talloc_single_attribute(
1004                         ldap_state->smbldap_state->ldap_struct,
1005                         entry,
1006                         get_userattr_key2string(ldap_state->schema_ver,
1007                                 LDAP_ATTR_LOGON_COUNT),
1008                         ctx);
1009         if (temp) {
1010                 logon_count = (uint32) atol(temp);
1011                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1012         }
1013
1014         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
1015
1016         temp = smbldap_talloc_single_attribute(
1017                         ldap_state->smbldap_state->ldap_struct,
1018                         entry,
1019                         get_userattr_key2string(ldap_state->schema_ver,
1020                                 LDAP_ATTR_LOGON_HOURS),
1021                         ctx);
1022         if (temp) {
1023                 pdb_gethexhours(temp, hours);
1024                 memset((char *)temp, '\0', strlen(temp) +1);
1025                 pdb_set_hours(sampass, hours, PDB_SET);
1026                 ZERO_STRUCT(hours);
1027         }
1028
1029         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
1030                 temp = smbldap_talloc_single_attribute(
1031                                 priv2ld(ldap_state),
1032                                 entry,
1033                                 "uidNumber",
1034                                 ctx);
1035                 if (temp) {
1036                         /* We've got a uid, feed the cache */
1037                         uid_t uid = strtoul(temp, NULL, 10);
1038                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
1039                 }
1040         }
1041
1042         /* check the timestamp of the cache vs ldap entry */
1043         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
1044                                                             entry))) {
1045                 ret = true;
1046                 goto fn_exit;
1047         }
1048
1049         /* see if we have newer updates */
1050         if (!(cache_entry = login_cache_read(sampass))) {
1051                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
1052                            (unsigned int)pdb_get_bad_password_count(sampass),
1053                            (unsigned int)pdb_get_bad_password_time(sampass)));
1054                 ret = true;
1055                 goto fn_exit;
1056         }
1057
1058         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
1059                   (unsigned int)ldap_entry_time,
1060                   (unsigned int)cache_entry->entry_timestamp,
1061                   (unsigned int)cache_entry->bad_password_time));
1062
1063         if (ldap_entry_time > cache_entry->entry_timestamp) {
1064                 /* cache is older than directory , so
1065                    we need to delete the entry but allow the
1066                    fields to be written out */
1067                 login_cache_delentry(sampass);
1068         } else {
1069                 /* read cache in */
1070                 pdb_set_acct_ctrl(sampass,
1071                                   pdb_get_acct_ctrl(sampass) |
1072                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
1073                                   PDB_SET);
1074                 pdb_set_bad_password_count(sampass,
1075                                            cache_entry->bad_password_count,
1076                                            PDB_SET);
1077                 pdb_set_bad_password_time(sampass,
1078                                           cache_entry->bad_password_time,
1079                                           PDB_SET);
1080         }
1081
1082         ret = true;
1083
1084   fn_exit:
1085
1086         TALLOC_FREE(ctx);
1087         SAFE_FREE(cache_entry);
1088         return ret;
1089 }
1090
1091 /**********************************************************************
1092  Initialize the ldap db from a struct samu. Called on update.
1093  (Based on init_buffer_from_sam in pdb_tdb.c)
1094 *********************************************************************/
1095
1096 static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
1097                                 LDAPMessage *existing,
1098                                 LDAPMod *** mods, struct samu * sampass,
1099                                 bool (*need_update)(const struct samu *,
1100                                                     enum pdb_elements))
1101 {
1102         char *temp = NULL;
1103         uint32 rid;
1104
1105         if (mods == NULL || sampass == NULL) {
1106                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
1107                 return False;
1108         }
1109
1110         *mods = NULL;
1111
1112         /*
1113          * took out adding "objectclass: sambaAccount"
1114          * do this on a per-mod basis
1115          */
1116         if (need_update(sampass, PDB_USERNAME)) {
1117                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1118                               "uid", pdb_get_username(sampass));
1119                 if (ldap_state->is_nds_ldap) {
1120                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1121                                       "cn", pdb_get_username(sampass));
1122                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1123                                       "sn", pdb_get_username(sampass));
1124                 }
1125         }
1126
1127         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
1128
1129         /* only update the RID if we actually need to */
1130         if (need_update(sampass, PDB_USERSID)) {
1131                 fstring sid_string;
1132                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
1133
1134                 switch ( ldap_state->schema_ver ) {
1135                         case SCHEMAVER_SAMBAACCOUNT:
1136                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
1137                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1138                                                   sid_string_dbg(user_sid),
1139                                                   sid_string_dbg(
1140                                                           &ldap_state->domain_sid)));
1141                                         return False;
1142                                 }
1143                                 if (asprintf(&temp, "%i", rid) < 0) {
1144                                         return false;
1145                                 }
1146                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1147                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
1148                                         temp);
1149                                 SAFE_FREE(temp);
1150                                 break;
1151
1152                         case SCHEMAVER_SAMBASAMACCOUNT:
1153                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1154                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1155                                         sid_to_string(sid_string, user_sid));
1156                                 break;
1157
1158                         default:
1159                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1160                                 break;
1161                 }
1162         }
1163
1164         /* we don't need to store the primary group RID - so leaving it
1165            'free' to hang off the unix primary group makes life easier */
1166
1167         if (need_update(sampass, PDB_GROUPSID)) {
1168                 fstring sid_string;
1169                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1170
1171                 switch ( ldap_state->schema_ver ) {
1172                         case SCHEMAVER_SAMBAACCOUNT:
1173                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1174                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1175                                                   sid_string_dbg(group_sid),
1176                                                   sid_string_dbg(
1177                                                           &ldap_state->domain_sid)));
1178                                         return False;
1179                                 }
1180
1181                                 if (asprintf(&temp, "%i", rid) < 0) {
1182                                         return false;
1183                                 }
1184                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1185                                         get_userattr_key2string(ldap_state->schema_ver,
1186                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1187                                 SAFE_FREE(temp);
1188                                 break;
1189
1190                         case SCHEMAVER_SAMBASAMACCOUNT:
1191                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1192                                         get_userattr_key2string(ldap_state->schema_ver,
1193                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_string(sid_string, group_sid));
1194                                 break;
1195
1196                         default:
1197                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1198                                 break;
1199                 }
1200
1201         }
1202
1203         /* displayName, cn, and gecos should all be the same
1204          *  most easily accomplished by giving them the same OID
1205          *  gecos isn't set here b/c it should be handled by the
1206          *  add-user script
1207          *  We change displayName only and fall back to cn if
1208          *  it does not exist.
1209          */
1210
1211         if (need_update(sampass, PDB_FULLNAME))
1212                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1213                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1214                         pdb_get_fullname(sampass));
1215
1216         if (need_update(sampass, PDB_ACCTDESC))
1217                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1218                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1219                         pdb_get_acct_desc(sampass));
1220
1221         if (need_update(sampass, PDB_WORKSTATIONS))
1222                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1223                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1224                         pdb_get_workstations(sampass));
1225
1226         if (need_update(sampass, PDB_MUNGEDDIAL))
1227                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1228                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1229                         pdb_get_munged_dial(sampass));
1230
1231         if (need_update(sampass, PDB_SMBHOME))
1232                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1233                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1234                         pdb_get_homedir(sampass));
1235
1236         if (need_update(sampass, PDB_DRIVE))
1237                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1238                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1239                         pdb_get_dir_drive(sampass));
1240
1241         if (need_update(sampass, PDB_LOGONSCRIPT))
1242                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1243                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1244                         pdb_get_logon_script(sampass));
1245
1246         if (need_update(sampass, PDB_PROFILE))
1247                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1248                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1249                         pdb_get_profile_path(sampass));
1250
1251         if (asprintf(&temp, "%li", pdb_get_logon_time(sampass)) < 0) {
1252                 return false;
1253         }
1254         if (need_update(sampass, PDB_LOGONTIME))
1255                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1256                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1257         SAFE_FREE(temp);
1258
1259         if (asprintf(&temp, "%li", pdb_get_logoff_time(sampass)) < 0) {
1260                 return false;
1261         }
1262         if (need_update(sampass, PDB_LOGOFFTIME))
1263                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1264                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1265         SAFE_FREE(temp);
1266
1267         if (asprintf(&temp, "%li", pdb_get_kickoff_time(sampass)) < 0) {
1268                 return false;
1269         }
1270         if (need_update(sampass, PDB_KICKOFFTIME))
1271                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1272                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1273         SAFE_FREE(temp);
1274
1275         if (asprintf(&temp, "%li", pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
1276                 return false;
1277         }
1278         if (need_update(sampass, PDB_CANCHANGETIME))
1279                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1280                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1281         SAFE_FREE(temp);
1282
1283         if (asprintf(&temp, "%li", pdb_get_pass_must_change_time(sampass)) < 0) {
1284                 return false;
1285         }
1286         if (need_update(sampass, PDB_MUSTCHANGETIME))
1287                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1288                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1289         SAFE_FREE(temp);
1290
1291         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1292                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1293
1294                 if (need_update(sampass, PDB_LMPASSWD)) {
1295                         const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
1296                         if (lm_pw) {
1297                                 char pwstr[34];
1298                                 pdb_sethexpwd(pwstr, lm_pw,
1299                                               pdb_get_acct_ctrl(sampass));
1300                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1301                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1302                                                  pwstr);
1303                         } else {
1304                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1305                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1306                                                  NULL);
1307                         }
1308                 }
1309                 if (need_update(sampass, PDB_NTPASSWD)) {
1310                         const uchar *nt_pw = pdb_get_nt_passwd(sampass);
1311                         if (nt_pw) {
1312                                 char pwstr[34];
1313                                 pdb_sethexpwd(pwstr, nt_pw,
1314                                               pdb_get_acct_ctrl(sampass));
1315                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1316                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1317                                                  pwstr);
1318                         } else {
1319                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1320                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1321                                                  NULL);
1322                         }
1323                 }
1324
1325                 if (need_update(sampass, PDB_PWHISTORY)) {
1326                         char *pwstr = NULL;
1327                         uint32 pwHistLen = 0;
1328                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1329
1330                         pwstr = SMB_MALLOC_ARRAY(char, 1024);
1331                         if (!pwstr) {
1332                                 return false;
1333                         }
1334                         if (pwHistLen == 0) {
1335                                 /* Remove any password history from the LDAP store. */
1336                                 memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1337                                 pwstr[64] = '\0';
1338                         } else {
1339                                 int i;
1340                                 uint32 currHistLen = 0;
1341                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1342                                 if (pwhist != NULL) {
1343                                         /* We can only store (1024-1/64 password history entries. */
1344                                         pwHistLen = MIN(pwHistLen, ((1024-1)/64));
1345                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1346                                                 /* Store the salt. */
1347                                                 pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1348                                                 /* Followed by the md5 hash of salt + md4 hash */
1349                                                 pdb_sethexpwd(&pwstr[(i*64)+32],
1350                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1351                                                 DEBUG(100, ("pwstr=%s\n", pwstr));
1352                                         }
1353                                 }
1354                         }
1355                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1356                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1357                                          pwstr);
1358                         SAFE_FREE(pwstr);
1359                 }
1360
1361                 if (need_update(sampass, PDB_PASSLASTSET)) {
1362                         if (asprintf(&temp, "%li",
1363                                 pdb_get_pass_last_set_time(sampass)) < 0) {
1364                                 return false;
1365                         }
1366                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1367                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1368                                 temp);
1369                         SAFE_FREE(temp);
1370                 }
1371         }
1372
1373         if (need_update(sampass, PDB_HOURS)) {
1374                 const uint8 *hours = pdb_get_hours(sampass);
1375                 if (hours) {
1376                         char hourstr[44];
1377                         pdb_sethexhours(hourstr, hours);
1378                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1379                                 existing,
1380                                 mods,
1381                                 get_userattr_key2string(ldap_state->schema_ver,
1382                                                 LDAP_ATTR_LOGON_HOURS),
1383                                 hourstr);
1384                 }
1385         }
1386
1387         if (need_update(sampass, PDB_ACCTCTRL))
1388                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1389                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1390                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1391
1392         /* password lockout cache:
1393            - If we are now autolocking or clearing, we write to ldap
1394            - If we are clearing, we delete the cache entry
1395            - If the count is > 0, we update the cache
1396
1397            This even means when autolocking, we cache, just in case the
1398            update doesn't work, and we have to cache the autolock flag */
1399
1400         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1401             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1402                 uint16 badcount = pdb_get_bad_password_count(sampass);
1403                 time_t badtime = pdb_get_bad_password_time(sampass);
1404                 uint32 pol;
1405                 pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &pol);
1406
1407                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1408                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1409
1410                 if ((badcount >= pol) || (badcount == 0)) {
1411                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1412                                 (unsigned int)badcount, (unsigned int)badtime));
1413                         if (asprintf(&temp, "%li", (long)badcount) < 0) {
1414                                 return false;
1415                         }
1416                         smbldap_make_mod(
1417                                 ldap_state->smbldap_state->ldap_struct,
1418                                 existing, mods,
1419                                 get_userattr_key2string(
1420                                         ldap_state->schema_ver,
1421                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1422                                 temp);
1423                         SAFE_FREE(temp);
1424
1425                         if (asprintf(&temp, "%li", badtime) < 0) {
1426                                 return false;
1427                         }
1428                         smbldap_make_mod(
1429                                 ldap_state->smbldap_state->ldap_struct,
1430                                 existing, mods,
1431                                 get_userattr_key2string(
1432                                         ldap_state->schema_ver,
1433                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1434                                 temp);
1435                         SAFE_FREE(temp);
1436                 }
1437                 if (badcount == 0) {
1438                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1439                         login_cache_delentry(sampass);
1440                 } else {
1441                         LOGIN_CACHE cache_entry;
1442
1443                         cache_entry.entry_timestamp = time(NULL);
1444                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1445                         cache_entry.bad_password_count = badcount;
1446                         cache_entry.bad_password_time = badtime;
1447
1448                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1449                         login_cache_write(sampass, cache_entry);
1450                 }
1451         }
1452
1453         return True;
1454 }
1455
1456 /**********************************************************************
1457  Connect to LDAP server for password enumeration.
1458 *********************************************************************/
1459
1460 static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, bool update, uint32 acb_mask)
1461 {
1462         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1463         int rc;
1464         char *filter = NULL;
1465         const char *suffix;
1466         const char **attr_list;
1467         bool machine_mask = False, user_mask = False;
1468         NTSTATUS status = NT_STATUS_OK;
1469         TALLOC_CTX *ctx = talloc_init("ldapsam_setsampwent");
1470
1471         if (!ctx) {
1472                 return NT_STATUS_NO_MEMORY;
1473         }
1474         filter = talloc_asprintf(ctx, "(&%s%s)", "(uid=%u)",
1475                 get_objclass_filter(ldap_state->schema_ver));
1476         if (!filter) {
1477                 status = NT_STATUS_NO_MEMORY;
1478                 goto out;
1479         }
1480
1481         filter = talloc_all_string_sub(ctx, filter, "%u", "*");
1482         if (!filter) {
1483                 status = NT_STATUS_NO_MEMORY;
1484                 goto out;
1485         }
1486
1487         machine_mask    = ((acb_mask != 0) && (acb_mask & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)));
1488         user_mask       = ((acb_mask != 0) && (acb_mask & ACB_NORMAL));
1489
1490         if (machine_mask) {
1491                 suffix = lp_ldap_machine_suffix();
1492         } else if (user_mask) {
1493                 suffix = lp_ldap_user_suffix();
1494         } else {
1495                 suffix = lp_ldap_suffix();
1496         }
1497
1498         DEBUG(10,("ldapsam_setsampwent: LDAP Query for acb_mask 0x%x will use suffix %s\n",
1499                 acb_mask, suffix));
1500
1501         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1502         rc = smbldap_search(ldap_state->smbldap_state, suffix, LDAP_SCOPE_SUBTREE, filter,
1503                             attr_list, 0, &ldap_state->result);
1504         TALLOC_FREE( attr_list );
1505
1506         if (rc != LDAP_SUCCESS) {
1507                 DEBUG(0, ("ldapsam_setsampwent: LDAP search failed: %s\n", ldap_err2string(rc)));
1508                 DEBUG(3, ("ldapsam_setsampwent: Query was: %s, %s\n", suffix, filter));
1509                 ldap_msgfree(ldap_state->result);
1510                 ldap_state->result = NULL;
1511                 status = NT_STATUS_UNSUCCESSFUL;
1512                 goto out;
1513         }
1514
1515         DEBUG(2, ("ldapsam_setsampwent: %d entries in the base %s\n",
1516                 ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
1517                 ldap_state->result), suffix));
1518
1519         ldap_state->entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
1520                                  ldap_state->result);
1521         ldap_state->index = 0;
1522
1523   out:
1524
1525         TALLOC_FREE(ctx);
1526         return status;
1527 }
1528
1529 /**********************************************************************
1530  End enumeration of the LDAP password list.
1531 *********************************************************************/
1532
1533 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1534 {
1535         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1536         if (ldap_state->result) {
1537                 ldap_msgfree(ldap_state->result);
1538                 ldap_state->result = NULL;
1539         }
1540 }
1541
1542 /**********************************************************************
1543 Get the next entry in the LDAP password database.
1544 *********************************************************************/
1545
1546 static NTSTATUS ldapsam_getsampwent(struct pdb_methods *my_methods,
1547                                     struct samu *user)
1548 {
1549         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1550         struct ldapsam_privates *ldap_state =
1551                 (struct ldapsam_privates *)my_methods->private_data;
1552         bool bret = False;
1553
1554         while (!bret) {
1555                 if (!ldap_state->entry)
1556                         return ret;
1557
1558                 ldap_state->index++;
1559                 bret = init_sam_from_ldap(ldap_state, user, ldap_state->entry);
1560
1561                 ldap_state->entry = ldap_next_entry(priv2ld(ldap_state),
1562                                                     ldap_state->entry);
1563         }
1564
1565         return NT_STATUS_OK;
1566 }
1567
1568 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1569                         const char *new_attr)
1570 {
1571         int i;
1572
1573         if (new_attr == NULL) {
1574                 return;
1575         }
1576
1577         for (i=0; (*attr_list)[i] != NULL; i++) {
1578                 ;
1579         }
1580
1581         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1582                                             const char *,  i+2);
1583         SMB_ASSERT((*attr_list) != NULL);
1584         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1585         (*attr_list)[i+1] = NULL;
1586 }
1587
1588 /**********************************************************************
1589 Get struct samu entry from LDAP by username.
1590 *********************************************************************/
1591
1592 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1593 {
1594         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1595         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1596         LDAPMessage *result = NULL;
1597         LDAPMessage *entry = NULL;
1598         int count;
1599         const char ** attr_list;
1600         int rc;
1601
1602         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1603         append_attr(user, &attr_list,
1604                     get_userattr_key2string(ldap_state->schema_ver,
1605                                             LDAP_ATTR_MOD_TIMESTAMP));
1606         append_attr(user, &attr_list, "uidNumber");
1607         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1608                                            attr_list);
1609         TALLOC_FREE( attr_list );
1610
1611         if ( rc != LDAP_SUCCESS )
1612                 return NT_STATUS_NO_SUCH_USER;
1613
1614         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1615
1616         if (count < 1) {
1617                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1618                 ldap_msgfree(result);
1619                 return NT_STATUS_NO_SUCH_USER;
1620         } else if (count > 1) {
1621                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1622                 ldap_msgfree(result);
1623                 return NT_STATUS_NO_SUCH_USER;
1624         }
1625
1626         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1627         if (entry) {
1628                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1629                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1630                         ldap_msgfree(result);
1631                         return NT_STATUS_NO_SUCH_USER;
1632                 }
1633                 pdb_set_backend_private_data(user, result, NULL,
1634                                              my_methods, PDB_CHANGED);
1635                 talloc_autofree_ldapmsg(user, result);
1636                 ret = NT_STATUS_OK;
1637         } else {
1638                 ldap_msgfree(result);
1639         }
1640         return ret;
1641 }
1642
1643 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1644                                    const DOM_SID *sid, LDAPMessage **result)
1645 {
1646         int rc = -1;
1647         const char ** attr_list;
1648         uint32 rid;
1649
1650         switch ( ldap_state->schema_ver ) {
1651                 case SCHEMAVER_SAMBASAMACCOUNT: {
1652                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1653                         if (tmp_ctx == NULL) {
1654                                 return LDAP_NO_MEMORY;
1655                         }
1656
1657                         attr_list = get_userattr_list(tmp_ctx,
1658                                                       ldap_state->schema_ver);
1659                         append_attr(tmp_ctx, &attr_list,
1660                                     get_userattr_key2string(
1661                                             ldap_state->schema_ver,
1662                                             LDAP_ATTR_MOD_TIMESTAMP));
1663                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1664                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1665                                                           result, attr_list);
1666                         TALLOC_FREE(tmp_ctx);
1667
1668                         if ( rc != LDAP_SUCCESS )
1669                                 return rc;
1670                         break;
1671                 }
1672
1673                 case SCHEMAVER_SAMBAACCOUNT:
1674                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1675                                 return rc;
1676                         }
1677
1678                         attr_list = get_userattr_list(NULL,
1679                                                       ldap_state->schema_ver);
1680                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1681                         TALLOC_FREE( attr_list );
1682
1683                         if ( rc != LDAP_SUCCESS )
1684                                 return rc;
1685                         break;
1686         }
1687         return rc;
1688 }
1689
1690 /**********************************************************************
1691  Get struct samu entry from LDAP by SID.
1692 *********************************************************************/
1693
1694 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1695 {
1696         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1697         LDAPMessage *result = NULL;
1698         LDAPMessage *entry = NULL;
1699         int count;
1700         int rc;
1701
1702         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1703                                           sid, &result);
1704         if (rc != LDAP_SUCCESS)
1705                 return NT_STATUS_NO_SUCH_USER;
1706
1707         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1708
1709         if (count < 1) {
1710                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
1711                           "count=%d\n", sid_string_dbg(sid), count));
1712                 ldap_msgfree(result);
1713                 return NT_STATUS_NO_SUCH_USER;
1714         }  else if (count > 1) {
1715                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
1716                           "[%s]. Failing. count=%d\n", sid_string_dbg(sid),
1717                           count));
1718                 ldap_msgfree(result);
1719                 return NT_STATUS_NO_SUCH_USER;
1720         }
1721
1722         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1723         if (!entry) {
1724                 ldap_msgfree(result);
1725                 return NT_STATUS_NO_SUCH_USER;
1726         }
1727
1728         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1729                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1730                 ldap_msgfree(result);
1731                 return NT_STATUS_NO_SUCH_USER;
1732         }
1733
1734         pdb_set_backend_private_data(user, result, NULL,
1735                                      my_methods, PDB_CHANGED);
1736         talloc_autofree_ldapmsg(user, result);
1737         return NT_STATUS_OK;
1738 }
1739
1740 /********************************************************************
1741  Do the actual modification - also change a plaintext passord if
1742  it it set.
1743 **********************************************************************/
1744
1745 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1746                                      struct samu *newpwd, char *dn,
1747                                      LDAPMod **mods, int ldap_op,
1748                                      bool (*need_update)(const struct samu *, enum pdb_elements))
1749 {
1750         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1751         int rc;
1752
1753         if (!newpwd || !dn) {
1754                 return NT_STATUS_INVALID_PARAMETER;
1755         }
1756
1757         if (!mods) {
1758                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1759                 /* may be password change below however */
1760         } else {
1761                 switch(ldap_op) {
1762                         case LDAP_MOD_ADD:
1763                                 if (ldap_state->is_nds_ldap) {
1764                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1765                                                         "objectclass",
1766                                                         "inetOrgPerson");
1767                                 } else {
1768                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1769                                                         "objectclass",
1770                                                         LDAP_OBJ_ACCOUNT);
1771                                 }
1772                                 rc = smbldap_add(ldap_state->smbldap_state,
1773                                                  dn, mods);
1774                                 break;
1775                         case LDAP_MOD_REPLACE:
1776                                 rc = smbldap_modify(ldap_state->smbldap_state,
1777                                                     dn ,mods);
1778                                 break;
1779                         default:
1780                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1781                                          ldap_op));
1782                                 return NT_STATUS_INVALID_PARAMETER;
1783                 }
1784
1785                 if (rc!=LDAP_SUCCESS) {
1786                         return NT_STATUS_UNSUCCESSFUL;
1787                 }
1788         }
1789
1790         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1791                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1792                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1793                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1794                 BerElement *ber;
1795                 struct berval *bv;
1796                 char *retoid = NULL;
1797                 struct berval *retdata = NULL;
1798                 char *utf8_password;
1799                 char *utf8_dn;
1800
1801                 if (!ldap_state->is_nds_ldap) {
1802
1803                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1804                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1805                                 DEBUG(2, ("ldap password change requested, but LDAP "
1806                                           "server does not support it -- ignoring\n"));
1807                                 return NT_STATUS_OK;
1808                         }
1809                 }
1810
1811                 if (push_utf8_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
1812                         return NT_STATUS_NO_MEMORY;
1813                 }
1814
1815                 if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
1816                         SAFE_FREE(utf8_password);
1817                         return NT_STATUS_NO_MEMORY;
1818                 }
1819
1820                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1821                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1822                         SAFE_FREE(utf8_password);
1823                         SAFE_FREE(utf8_dn);
1824                         return NT_STATUS_UNSUCCESSFUL;
1825                 }
1826
1827                 ber_printf (ber, "{");
1828                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn);
1829                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password);
1830                 ber_printf (ber, "n}");
1831
1832                 if ((rc = ber_flatten (ber, &bv))<0) {
1833                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1834                         ber_free(ber,1);
1835                         SAFE_FREE(utf8_dn);
1836                         SAFE_FREE(utf8_password);
1837                         return NT_STATUS_UNSUCCESSFUL;
1838                 }
1839
1840                 SAFE_FREE(utf8_dn);
1841                 SAFE_FREE(utf8_password);
1842                 ber_free(ber, 1);
1843
1844                 if (!ldap_state->is_nds_ldap) {
1845                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1846                                                         LDAP_EXOP_MODIFY_PASSWD,
1847                                                         bv, NULL, NULL, &retoid,
1848                                                         &retdata);
1849                 } else {
1850                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1851                                                         pdb_get_plaintext_passwd(newpwd));
1852                 }
1853                 if (rc != LDAP_SUCCESS) {
1854                         char *ld_error = NULL;
1855
1856                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1857                                 DEBUG(3, ("Could not set userPassword "
1858                                           "attribute due to an objectClass "
1859                                           "violation -- ignoring\n"));
1860                                 ber_bvfree(bv);
1861                                 return NT_STATUS_OK;
1862                         }
1863
1864                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1865                                         &ld_error);
1866                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1867                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1868                         SAFE_FREE(ld_error);
1869                         ber_bvfree(bv);
1870                         return NT_STATUS_UNSUCCESSFUL;
1871                 } else {
1872                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1873 #ifdef DEBUG_PASSWORD
1874                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1875 #endif
1876                         if (retdata)
1877                                 ber_bvfree(retdata);
1878                         if (retoid)
1879                                 ldap_memfree(retoid);
1880                 }
1881                 ber_bvfree(bv);
1882         }
1883         return NT_STATUS_OK;
1884 }
1885
1886 /**********************************************************************
1887  Delete entry from LDAP for username.
1888 *********************************************************************/
1889
1890 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1891                                            struct samu * sam_acct)
1892 {
1893         struct ldapsam_privates *priv =
1894                 (struct ldapsam_privates *)my_methods->private_data;
1895         const char *sname;
1896         int rc;
1897         LDAPMessage *msg, *entry;
1898         NTSTATUS result = NT_STATUS_NO_MEMORY;
1899         const char **attr_list;
1900         TALLOC_CTX *mem_ctx;
1901
1902         if (!sam_acct) {
1903                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1904                 return NT_STATUS_INVALID_PARAMETER;
1905         }
1906
1907         sname = pdb_get_username(sam_acct);
1908
1909         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1910                   "LDAP.\n", sname));
1911
1912         mem_ctx = talloc_new(NULL);
1913         if (mem_ctx == NULL) {
1914                 DEBUG(0, ("talloc_new failed\n"));
1915                 goto done;
1916         }
1917
1918         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1919         if (attr_list == NULL) {
1920                 goto done;
1921         }
1922
1923         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1924
1925         if ((rc != LDAP_SUCCESS) ||
1926             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1927             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1928                 DEBUG(5, ("Could not find user %s\n", sname));
1929                 result = NT_STATUS_NO_SUCH_USER;
1930                 goto done;
1931         }
1932
1933         rc = ldapsam_delete_entry(
1934                 priv, mem_ctx, entry,
1935                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1936                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1937                 attr_list);
1938
1939         result = (rc == LDAP_SUCCESS) ?
1940                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1941
1942  done:
1943         TALLOC_FREE(mem_ctx);
1944         return result;
1945 }
1946
1947 /**********************************************************************
1948  Helper function to determine for update_sam_account whether
1949  we need LDAP modification.
1950 *********************************************************************/
1951
1952 static bool element_is_changed(const struct samu *sampass,
1953                                enum pdb_elements element)
1954 {
1955         return IS_SAM_CHANGED(sampass, element);
1956 }
1957
1958 /**********************************************************************
1959  Update struct samu.
1960 *********************************************************************/
1961
1962 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1963 {
1964         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1965         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1966         int rc = 0;
1967         char *dn;
1968         LDAPMessage *result = NULL;
1969         LDAPMessage *entry = NULL;
1970         LDAPMod **mods = NULL;
1971         const char **attr_list;
1972
1973         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1974         if (!result) {
1975                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1976                 if (pdb_get_username(newpwd) == NULL) {
1977                         return NT_STATUS_INVALID_PARAMETER;
1978                 }
1979                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1980                 TALLOC_FREE( attr_list );
1981                 if (rc != LDAP_SUCCESS) {
1982                         return NT_STATUS_UNSUCCESSFUL;
1983                 }
1984                 pdb_set_backend_private_data(newpwd, result, NULL,
1985                                              my_methods, PDB_CHANGED);
1986                 talloc_autofree_ldapmsg(newpwd, result);
1987         }
1988
1989         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1990                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1991                 return NT_STATUS_UNSUCCESSFUL;
1992         }
1993
1994         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1995         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
1996         if (!dn) {
1997                 return NT_STATUS_UNSUCCESSFUL;
1998         }
1999
2000         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
2001
2002         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2003                                 element_is_changed)) {
2004                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
2005                 SAFE_FREE(dn);
2006                 if (mods != NULL)
2007                         ldap_mods_free(mods,True);
2008                 return NT_STATUS_UNSUCCESSFUL;
2009         }
2010
2011         if (mods == NULL) {
2012                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
2013                          pdb_get_username(newpwd)));
2014                 SAFE_FREE(dn);
2015                 return NT_STATUS_OK;
2016         }
2017
2018         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
2019         ldap_mods_free(mods,True);
2020         SAFE_FREE(dn);
2021
2022         /*
2023          * We need to set the backend private data to NULL here. For example
2024          * setuserinfo level 25 does a pdb_update_sam_account twice on the
2025          * same one, and with the explicit delete / add logic for attribute
2026          * values the second time we would use the wrong "old" value which
2027          * does not exist in LDAP anymore. Thus the LDAP server would refuse
2028          * the update.
2029          * The existing LDAPMessage is still being auto-freed by the
2030          * destructor.
2031          */
2032         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
2033                                      PDB_CHANGED);
2034
2035         if (!NT_STATUS_IS_OK(ret)) {
2036                 return ret;
2037         }
2038
2039         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
2040                   pdb_get_username(newpwd)));
2041         return NT_STATUS_OK;
2042 }
2043
2044 /***************************************************************************
2045  Renames a struct samu
2046  - The "rename user script" has full responsibility for changing everything
2047 ***************************************************************************/
2048
2049 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
2050                                            struct samu *old_acct,
2051                                            const char *newname)
2052 {
2053         const char *oldname;
2054         int rc;
2055         char *rename_script = NULL;
2056         fstring oldname_lower, newname_lower;
2057
2058         if (!old_acct) {
2059                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
2060                 return NT_STATUS_INVALID_PARAMETER;
2061         }
2062         if (!newname) {
2063                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
2064                 return NT_STATUS_INVALID_PARAMETER;
2065         }
2066
2067         oldname = pdb_get_username(old_acct);
2068
2069         /* rename the posix user */
2070         rename_script = SMB_STRDUP(lp_renameuser_script());
2071         if (rename_script) {
2072                 return NT_STATUS_NO_MEMORY;
2073         }
2074
2075         if (!(*rename_script)) {
2076                 SAFE_FREE(rename_script);
2077                 return NT_STATUS_ACCESS_DENIED;
2078         }
2079
2080         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
2081                    oldname, newname));
2082
2083         /* We have to allow the account name to end with a '$'.
2084            Also, follow the semantics in _samr_create_user() and lower case the
2085            posix name but preserve the case in passdb */
2086
2087         fstrcpy( oldname_lower, oldname );
2088         strlower_m( oldname_lower );
2089         fstrcpy( newname_lower, newname );
2090         strlower_m( newname_lower );
2091         rename_script = realloc_string_sub2(rename_script,
2092                                         "%unew",
2093                                         newname_lower,
2094                                         true,
2095                                         true);
2096         if (rename_script) {
2097                 return NT_STATUS_NO_MEMORY;
2098         }
2099         rename_script = realloc_string_sub2(rename_script,
2100                                         "%uold",
2101                                         oldname_lower,
2102                                         true,
2103                                         true);
2104         rc = smbrun(rename_script, NULL);
2105
2106         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2107                           rename_script, rc));
2108
2109         SAFE_FREE(rename_script);
2110
2111         if (rc == 0) {
2112                 smb_nscd_flush_user_cache();
2113         }
2114
2115         if (rc)
2116                 return NT_STATUS_UNSUCCESSFUL;
2117
2118         return NT_STATUS_OK;
2119 }
2120
2121 /**********************************************************************
2122  Helper function to determine for update_sam_account whether
2123  we need LDAP modification.
2124  *********************************************************************/
2125
2126 static bool element_is_set_or_changed(const struct samu *sampass,
2127                                       enum pdb_elements element)
2128 {
2129         return (IS_SAM_SET(sampass, element) ||
2130                 IS_SAM_CHANGED(sampass, element));
2131 }
2132
2133 /**********************************************************************
2134  Add struct samu to LDAP.
2135 *********************************************************************/
2136
2137 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2138 {
2139         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2140         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2141         int rc;
2142         LDAPMessage     *result = NULL;
2143         LDAPMessage     *entry  = NULL;
2144         LDAPMod         **mods = NULL;
2145         int             ldap_op = LDAP_MOD_REPLACE;
2146         uint32          num_result;
2147         const char      **attr_list;
2148         char *escape_user = NULL;
2149         const char      *username = pdb_get_username(newpwd);
2150         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
2151         char *filter = NULL;
2152         char *dn = NULL;
2153         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2154         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2155
2156         if (!ctx) {
2157                 return NT_STATUS_NO_MEMORY;
2158         }
2159
2160         if (!username || !*username) {
2161                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2162                 status = NT_STATUS_INVALID_PARAMETER;
2163                 goto fn_exit;
2164         }
2165
2166         /* free this list after the second search or in case we exit on failure */
2167         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2168
2169         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2170
2171         if (rc != LDAP_SUCCESS) {
2172                 goto fn_exit;
2173         }
2174
2175         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2176                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2177                          username));
2178                 goto fn_exit;
2179         }
2180         ldap_msgfree(result);
2181         result = NULL;
2182
2183         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2184                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2185                                                   sid, &result);
2186                 if (rc == LDAP_SUCCESS) {
2187                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2188                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2189                                          "already in the base, with samba "
2190                                          "attributes\n", sid_string_dbg(sid)));
2191                                 goto fn_exit;
2192                         }
2193                         ldap_msgfree(result);
2194                         result = NULL;
2195                 }
2196         }
2197
2198         /* does the entry already exist but without a samba attributes?
2199            we need to return the samba attributes here */
2200
2201         escape_user = escape_ldap_string_alloc( username );
2202         filter = talloc_strdup(attr_list, "(uid=%u)");
2203         if (!filter) {
2204                 status = NT_STATUS_NO_MEMORY;
2205                 goto fn_exit;
2206         }
2207         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2208         if (!filter) {
2209                 status = NT_STATUS_NO_MEMORY;
2210                 goto fn_exit;
2211         }
2212         SAFE_FREE(escape_user);
2213
2214         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2215                                    filter, attr_list, &result);
2216         if ( rc != LDAP_SUCCESS ) {
2217                 goto fn_exit;
2218         }
2219
2220         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2221
2222         if (num_result > 1) {
2223                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2224                 goto fn_exit;
2225         }
2226
2227         /* Check if we need to update an existing entry */
2228         if (num_result == 1) {
2229                 char *tmp;
2230
2231                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2232                 ldap_op = LDAP_MOD_REPLACE;
2233                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2234                 tmp = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
2235                 if (!tmp) {
2236                         goto fn_exit;
2237                 }
2238                 dn = talloc_asprintf(ctx, "%s", tmp);
2239                 SAFE_FREE(tmp);
2240                 if (!dn) {
2241                         status = NT_STATUS_NO_MEMORY;
2242                         goto fn_exit;
2243                 }
2244
2245         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2246
2247                 /* There might be a SID for this account already - say an idmap entry */
2248
2249                 filter = talloc_asprintf(ctx,
2250                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2251                                  get_userattr_key2string(ldap_state->schema_ver,
2252                                          LDAP_ATTR_USER_SID),
2253                                  sid_string_talloc(ctx, sid),
2254                                  LDAP_OBJ_IDMAP_ENTRY,
2255                                  LDAP_OBJ_SID_ENTRY);
2256                 if (!filter) {
2257                         status = NT_STATUS_NO_MEMORY;
2258                         goto fn_exit;
2259                 }
2260
2261                 /* free old result before doing a new search */
2262                 if (result != NULL) {
2263                         ldap_msgfree(result);
2264                         result = NULL;
2265                 }
2266                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2267                                            filter, attr_list, &result);
2268
2269                 if ( rc != LDAP_SUCCESS ) {
2270                         goto fn_exit;
2271                 }
2272
2273                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2274
2275                 if (num_result > 1) {
2276                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2277                         goto fn_exit;
2278                 }
2279
2280                 /* Check if we need to update an existing entry */
2281                 if (num_result == 1) {
2282                         char *tmp;
2283
2284                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2285                         ldap_op = LDAP_MOD_REPLACE;
2286                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2287                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2288                         if (!tmp) {
2289                                 goto fn_exit;
2290                         }
2291                         dn = talloc_asprintf(ctx, "%s", tmp);
2292                         SAFE_FREE(tmp);
2293                         if (!dn) {
2294                                 status = NT_STATUS_NO_MEMORY;
2295                                 goto fn_exit;
2296                         }
2297                 }
2298         }
2299
2300         if (num_result == 0) {
2301                 char *escape_username;
2302                 /* Check if we need to add an entry */
2303                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2304                 ldap_op = LDAP_MOD_ADD;
2305
2306                 escape_username = escape_rdn_val_string_alloc(username);
2307                 if (!escape_username) {
2308                         status = NT_STATUS_NO_MEMORY;
2309                         goto fn_exit;
2310                 }
2311
2312                 if (username[strlen(username)-1] == '$') {
2313                         dn = talloc_asprintf(ctx,
2314                                         "uid=%s,%s",
2315                                         escape_username,
2316                                         lp_ldap_machine_suffix());
2317                 } else {
2318                         dn = talloc_asprintf(ctx,
2319                                         "uid=%s,%s",
2320                                         escape_username,
2321                                         lp_ldap_user_suffix());
2322                 }
2323
2324                 SAFE_FREE(escape_username);
2325                 if (!dn) {
2326                         status = NT_STATUS_NO_MEMORY;
2327                         goto fn_exit;
2328                 }
2329         }
2330
2331         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2332                                 element_is_set_or_changed)) {
2333                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2334                 if (mods != NULL) {
2335                         ldap_mods_free(mods, true);
2336                 }
2337                 goto fn_exit;
2338         }
2339
2340         if (mods == NULL) {
2341                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2342                 goto fn_exit;
2343         }
2344         switch ( ldap_state->schema_ver ) {
2345                 case SCHEMAVER_SAMBAACCOUNT:
2346                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2347                         break;
2348                 case SCHEMAVER_SAMBASAMACCOUNT:
2349                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2350                         break;
2351                 default:
2352                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2353                         break;
2354         }
2355
2356         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2357         if (!NT_STATUS_IS_OK(ret)) {
2358                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2359                          pdb_get_username(newpwd),dn));
2360                 ldap_mods_free(mods, true);
2361                 goto fn_exit;
2362         }
2363
2364         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2365         ldap_mods_free(mods, true);
2366
2367         status = NT_STATUS_OK;
2368
2369   fn_exit:
2370
2371         TALLOC_FREE(ctx);
2372         SAFE_FREE(escape_user);
2373         if (result) {
2374                 ldap_msgfree(result);
2375         }
2376         return status;
2377 }
2378
2379 /**********************************************************************
2380  *********************************************************************/
2381
2382 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2383                                      const char *filter,
2384                                      LDAPMessage ** result)
2385 {
2386         int scope = LDAP_SCOPE_SUBTREE;
2387         int rc;
2388         const char **attr_list;
2389
2390         attr_list = get_attr_list(NULL, groupmap_attr_list);
2391         rc = smbldap_search(ldap_state->smbldap_state,
2392                             lp_ldap_group_suffix (), scope,
2393                             filter, attr_list, 0, result);
2394         TALLOC_FREE(attr_list);
2395
2396         return rc;
2397 }
2398
2399 /**********************************************************************
2400  *********************************************************************/
2401
2402 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2403                                  GROUP_MAP *map, LDAPMessage *entry)
2404 {
2405         char *temp = NULL;
2406         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2407
2408         if (ldap_state == NULL || map == NULL || entry == NULL ||
2409                         ldap_state->smbldap_state->ldap_struct == NULL) {
2410                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2411                 TALLOC_FREE(ctx);
2412                 return false;
2413         }
2414
2415         temp = smbldap_talloc_single_attribute(
2416                         ldap_state->smbldap_state->ldap_struct,
2417                         entry,
2418                         get_attr_key2string(groupmap_attr_list,
2419                                 LDAP_ATTR_GIDNUMBER),
2420                         ctx);
2421         if (!temp) {
2422                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2423                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2424                 TALLOC_FREE(ctx);
2425                 return false;
2426         }
2427         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2428
2429         map->gid = (gid_t)atol(temp);
2430
2431         TALLOC_FREE(temp);
2432         temp = smbldap_talloc_single_attribute(
2433                         ldap_state->smbldap_state->ldap_struct,
2434                         entry,
2435                         get_attr_key2string(groupmap_attr_list,
2436                                 LDAP_ATTR_GROUP_SID),
2437                         ctx);
2438         if (!temp) {
2439                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2440                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2441                 TALLOC_FREE(ctx);
2442                 return false;
2443         }
2444
2445         if (!string_to_sid(&map->sid, temp)) {
2446                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2447                 TALLOC_FREE(ctx);
2448                 return false;
2449         }
2450
2451         TALLOC_FREE(temp);
2452         temp = smbldap_talloc_single_attribute(
2453                         ldap_state->smbldap_state->ldap_struct,
2454                         entry,
2455                         get_attr_key2string(groupmap_attr_list,
2456                                 LDAP_ATTR_GROUP_TYPE),
2457                         ctx);
2458         if (!temp) {
2459                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2460                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2461                 TALLOC_FREE(ctx);
2462                 return false;
2463         }
2464         map->sid_name_use = (enum lsa_SidType)atol(temp);
2465
2466         if ((map->sid_name_use < SID_NAME_USER) ||
2467                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2468                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2469                 TALLOC_FREE(ctx);
2470                 return false;
2471         }
2472
2473         TALLOC_FREE(temp);
2474         temp = smbldap_talloc_single_attribute(
2475                         ldap_state->smbldap_state->ldap_struct,
2476                         entry,
2477                         get_attr_key2string(groupmap_attr_list,
2478                                 LDAP_ATTR_DISPLAY_NAME),
2479                         ctx);
2480         if (!temp) {
2481                 temp = smbldap_talloc_single_attribute(
2482                                 ldap_state->smbldap_state->ldap_struct,
2483                                 entry,
2484                                 get_attr_key2string(groupmap_attr_list,
2485                                         LDAP_ATTR_CN),
2486                                 ctx);
2487                 if (!temp) {
2488                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2489 for gidNumber(%lu)\n",(unsigned long)map->gid));
2490                         TALLOC_FREE(ctx);
2491                         return false;
2492                 }
2493         }
2494         fstrcpy(map->nt_name, temp);
2495
2496         TALLOC_FREE(temp);
2497         temp = smbldap_talloc_single_attribute(
2498                         ldap_state->smbldap_state->ldap_struct,
2499                         entry,
2500                         get_attr_key2string(groupmap_attr_list,
2501                                 LDAP_ATTR_DESC),
2502                         ctx);
2503         if (!temp) {
2504                 temp = talloc_strdup(ctx, "");
2505                 if (!temp) {
2506                         TALLOC_FREE(ctx);
2507                         return false;
2508                 }
2509         }
2510         fstrcpy(map->comment, temp);
2511
2512         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2513                 store_gid_sid_cache(&map->sid, map->gid);
2514         }
2515
2516         TALLOC_FREE(ctx);
2517         return true;
2518 }
2519
2520 /**********************************************************************
2521  *********************************************************************/
2522
2523 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2524                                  const char *filter,
2525                                  GROUP_MAP *map)
2526 {
2527         struct ldapsam_privates *ldap_state =
2528                 (struct ldapsam_privates *)methods->private_data;
2529         LDAPMessage *result = NULL;
2530         LDAPMessage *entry = NULL;
2531         int count;
2532
2533         if (ldapsam_search_one_group(ldap_state, filter, &result)
2534             != LDAP_SUCCESS) {
2535                 return NT_STATUS_NO_SUCH_GROUP;
2536         }
2537
2538         count = ldap_count_entries(priv2ld(ldap_state), result);
2539
2540         if (count < 1) {
2541                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2542                           "%s\n", filter));
2543                 ldap_msgfree(result);
2544                 return NT_STATUS_NO_SUCH_GROUP;
2545         }
2546
2547         if (count > 1) {
2548                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2549                           "count=%d\n", filter, count));
2550                 ldap_msgfree(result);
2551                 return NT_STATUS_NO_SUCH_GROUP;
2552         }
2553
2554         entry = ldap_first_entry(priv2ld(ldap_state), result);
2555
2556         if (!entry) {
2557                 ldap_msgfree(result);
2558                 return NT_STATUS_UNSUCCESSFUL;
2559         }
2560
2561         if (!init_group_from_ldap(ldap_state, map, entry)) {
2562                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2563                           "group filter %s\n", filter));
2564                 ldap_msgfree(result);
2565                 return NT_STATUS_NO_SUCH_GROUP;
2566         }
2567
2568         ldap_msgfree(result);
2569         return NT_STATUS_OK;
2570 }
2571
2572 /**********************************************************************
2573  *********************************************************************/
2574
2575 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2576                                  DOM_SID sid)
2577 {
2578         char *filter = NULL;
2579         NTSTATUS status;
2580
2581         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2582                 LDAP_OBJ_GROUPMAP,
2583                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2584                 sid_string_static(&sid)) < 0) {
2585                 return NT_STATUS_NO_MEMORY;
2586         }
2587
2588         status = ldapsam_getgroup(methods, filter, map);
2589         SAFE_FREE(filter);
2590         return status;
2591 }
2592
2593 /**********************************************************************
2594  *********************************************************************/
2595
2596 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2597                                  gid_t gid)
2598 {
2599         char *filter = NULL;
2600         NTSTATUS status;
2601
2602         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2603                 LDAP_OBJ_GROUPMAP,
2604                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2605                 (unsigned long)gid) < 0) {
2606                 return NT_STATUS_NO_MEMORY;
2607         }
2608
2609         status = ldapsam_getgroup(methods, filter, map);
2610         SAFE_FREE(filter);
2611         return status;
2612 }
2613
2614 /**********************************************************************
2615  *********************************************************************/
2616
2617 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2618                                  const char *name)
2619 {
2620         char *filter = NULL;
2621         char *escape_name = escape_ldap_string_alloc(name);
2622         NTSTATUS status;
2623
2624         if (!escape_name) {
2625                 return NT_STATUS_NO_MEMORY;
2626         }
2627
2628         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2629                 LDAP_OBJ_GROUPMAP,
2630                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2631                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2632                 escape_name) < 0) {
2633                 SAFE_FREE(escape_name);
2634                 return NT_STATUS_NO_MEMORY;
2635         }
2636
2637         SAFE_FREE(escape_name);
2638         status = ldapsam_getgroup(methods, filter, map);
2639         SAFE_FREE(filter);
2640         return status;
2641 }
2642
2643 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2644                                            LDAPMessage *entry,
2645                                            const DOM_SID *domain_sid,
2646                                            uint32 *rid)
2647 {
2648         fstring str;
2649         DOM_SID sid;
2650
2651         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2652                                           str, sizeof(str)-1)) {
2653                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2654                 return False;
2655         }
2656
2657         if (!string_to_sid(&sid, str)) {
2658                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2659                 return False;
2660         }
2661
2662         if (sid_compare_domain(&sid, domain_sid) != 0) {
2663                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2664                            str, sid_string_dbg(domain_sid)));
2665                 return False;
2666         }
2667
2668         if (!sid_peek_rid(&sid, rid)) {
2669                 DEBUG(10, ("Could not peek into RID\n"));
2670                 return False;
2671         }
2672
2673         return True;
2674 }
2675
2676 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2677                                            TALLOC_CTX *mem_ctx,
2678                                            const DOM_SID *group,
2679                                            uint32 **pp_member_rids,
2680                                            size_t *p_num_members)
2681 {
2682         struct ldapsam_privates *ldap_state =
2683                 (struct ldapsam_privates *)methods->private_data;
2684         struct smbldap_state *conn = ldap_state->smbldap_state;
2685         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2686         const char *sid_attrs[] = { "sambaSID", NULL };
2687         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2688         LDAPMessage *result = NULL;
2689         LDAPMessage *entry;
2690         char *filter;
2691         char **values = NULL;
2692         char **memberuid;
2693         char *gidstr;
2694         int rc, count;
2695
2696         *pp_member_rids = NULL;
2697         *p_num_members = 0;
2698
2699         filter = talloc_asprintf(mem_ctx,
2700                                  "(&(objectClass=%s)"
2701                                  "(objectClass=%s)"
2702                                  "(sambaSID=%s))",
2703                                  LDAP_OBJ_POSIXGROUP,
2704                                  LDAP_OBJ_GROUPMAP,
2705                                  sid_string_talloc(mem_ctx, group));
2706         if (filter == NULL) {
2707                 ret = NT_STATUS_NO_MEMORY;
2708                 goto done;
2709         }
2710
2711         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2712                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2713                             &result);
2714
2715         if (rc != LDAP_SUCCESS)
2716                 goto done;
2717
2718         talloc_autofree_ldapmsg(mem_ctx, result);
2719
2720         count = ldap_count_entries(conn->ldap_struct, result);
2721
2722         if (count > 1) {
2723                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2724                           sid_string_dbg(group)));
2725                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2726                 goto done;
2727         }
2728
2729         if (count == 0) {
2730                 ret = NT_STATUS_NO_SUCH_GROUP;
2731                 goto done;
2732         }
2733
2734         entry = ldap_first_entry(conn->ldap_struct, result);
2735         if (entry == NULL)
2736                 goto done;
2737
2738         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2739         if (!gidstr) {
2740                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2741                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2742                 goto done;
2743         }
2744
2745         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2746
2747         if (values) {
2748
2749                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2750                 if (filter == NULL) {
2751                         ret = NT_STATUS_NO_MEMORY;
2752                         goto done;
2753                 }
2754
2755                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2756                         char *escape_memberuid;
2757
2758                         escape_memberuid = escape_ldap_string_alloc(*memberuid);
2759                         if (escape_memberuid == NULL) {
2760                                 ret = NT_STATUS_NO_MEMORY;
2761                                 goto done;
2762                         }
2763
2764                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2765                         if (filter == NULL) {
2766                                 SAFE_FREE(escape_memberuid);
2767                                 ret = NT_STATUS_NO_MEMORY;
2768                                 goto done;
2769                         }
2770
2771                         SAFE_FREE(escape_memberuid);
2772                 }
2773
2774                 filter = talloc_asprintf_append_buffer(filter, "))");
2775                 if (filter == NULL) {
2776                         ret = NT_STATUS_NO_MEMORY;
2777                         goto done;
2778                 }
2779
2780                 rc = smbldap_search(conn, lp_ldap_user_suffix(),
2781                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2782                                     &result);
2783
2784                 if (rc != LDAP_SUCCESS)
2785                         goto done;
2786
2787                 count = ldap_count_entries(conn->ldap_struct, result);
2788                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2789
2790                 talloc_autofree_ldapmsg(mem_ctx, result);
2791
2792                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2793                      entry != NULL;
2794                      entry = ldap_next_entry(conn->ldap_struct, entry))
2795                 {
2796                         char *sidstr;
2797                         DOM_SID sid;
2798                         uint32 rid;
2799
2800                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2801                                                                  entry, "sambaSID",
2802                                                                  mem_ctx);
2803                         if (!sidstr) {
2804                                 DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2805                                           "the sambaSID attribute\n"));
2806                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2807                                 goto done;
2808                         }
2809
2810                         if (!string_to_sid(&sid, sidstr))
2811                                 goto done;
2812
2813                         if (!sid_check_is_in_our_domain(&sid)) {
2814                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2815                                           "in our domain\n"));
2816                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2817                                 goto done;
2818                         }
2819
2820                         sid_peek_rid(&sid, &rid);
2821
2822                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2823                                                 p_num_members)) {
2824                                 ret = NT_STATUS_NO_MEMORY;
2825                                 goto done;
2826                         }
2827                 }
2828         }
2829
2830         filter = talloc_asprintf(mem_ctx,
2831                                  "(&(objectClass=%s)"
2832                                  "(gidNumber=%s))",
2833                                  LDAP_OBJ_SAMBASAMACCOUNT,
2834                                  gidstr);
2835
2836         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2837                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2838                             &result);
2839
2840         if (rc != LDAP_SUCCESS)
2841                 goto done;
2842
2843         talloc_autofree_ldapmsg(mem_ctx, result);
2844
2845         for (entry = ldap_first_entry(conn->ldap_struct, result);
2846              entry != NULL;
2847              entry = ldap_next_entry(conn->ldap_struct, entry))
2848         {
2849                 uint32 rid;
2850
2851                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2852                                                     entry,
2853                                                     get_global_sam_sid(),
2854                                                     &rid)) {
2855                         DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2856                                   "the sambaSID attribute\n"));
2857                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2858                         goto done;
2859                 }
2860
2861                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2862                                         p_num_members)) {
2863                         ret = NT_STATUS_NO_MEMORY;
2864                         goto done;
2865                 }
2866         }
2867
2868         ret = NT_STATUS_OK;
2869
2870  done:
2871
2872         if (values)
2873                 ldap_value_free(values);
2874
2875         return ret;
2876 }
2877
2878 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2879                                                TALLOC_CTX *mem_ctx,
2880                                                struct samu *user,
2881                                                DOM_SID **pp_sids,
2882                                                gid_t **pp_gids,
2883                                                size_t *p_num_groups)
2884 {
2885         struct ldapsam_privates *ldap_state =
2886                 (struct ldapsam_privates *)methods->private_data;
2887         struct smbldap_state *conn = ldap_state->smbldap_state;
2888         char *filter;
2889         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2890         char *escape_name;
2891         int rc, count;
2892         LDAPMessage *result = NULL;
2893         LDAPMessage *entry;
2894         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2895         size_t num_sids, num_gids;
2896         char *gidstr;
2897         gid_t primary_gid = -1;
2898
2899         *pp_sids = NULL;
2900         num_sids = 0;
2901
2902         if (pdb_get_username(user) == NULL) {
2903                 return NT_STATUS_INVALID_PARAMETER;
2904         }
2905
2906         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2907         if (escape_name == NULL)
2908                 return NT_STATUS_NO_MEMORY;
2909
2910         /* retrieve the users primary gid */
2911         filter = talloc_asprintf(mem_ctx,
2912                                  "(&(objectClass=%s)(uid=%s))",
2913                                  LDAP_OBJ_SAMBASAMACCOUNT,
2914                                  escape_name);
2915         if (filter == NULL) {
2916                 ret = NT_STATUS_NO_MEMORY;
2917                 goto done;
2918         }
2919
2920         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2921                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2922
2923         if (rc != LDAP_SUCCESS)
2924                 goto done;
2925
2926         talloc_autofree_ldapmsg(mem_ctx, result);
2927
2928         count = ldap_count_entries(priv2ld(ldap_state), result);
2929
2930         switch (count) {
2931         case 0:
2932                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2933                 ret = NT_STATUS_NO_SUCH_USER;
2934                 goto done;
2935         case 1:
2936                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2937
2938                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2939                 if (!gidstr) {
2940                         DEBUG (1, ("Unable to find the member's gid!\n"));
2941                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2942                         goto done;
2943                 }
2944                 primary_gid = strtoul(gidstr, NULL, 10);
2945                 break;
2946         default:
2947                 DEBUG(1, ("found more than one account with the same user name ?!\n"));
2948                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2949                 goto done;
2950         }
2951
2952         filter = talloc_asprintf(mem_ctx,
2953                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2954                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2955         if (filter == NULL) {
2956                 ret = NT_STATUS_NO_MEMORY;
2957                 goto done;
2958         }
2959
2960         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2961                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2962
2963         if (rc != LDAP_SUCCESS)
2964                 goto done;
2965
2966         talloc_autofree_ldapmsg(mem_ctx, result);
2967
2968         num_gids = 0;
2969         *pp_gids = NULL;
2970
2971         num_sids = 0;
2972         *pp_sids = NULL;
2973
2974         /* We need to add the primary group as the first gid/sid */
2975
2976         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2977                 ret = NT_STATUS_NO_MEMORY;
2978                 goto done;
2979         }
2980
2981         /* This sid will be replaced later */
2982
2983         if (!add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids)) {
2984                 ret = NT_STATUS_NO_MEMORY;
2985                 goto done;
2986         }
2987
2988         for (entry = ldap_first_entry(conn->ldap_struct, result);
2989              entry != NULL;
2990              entry = ldap_next_entry(conn->ldap_struct, entry))
2991         {
2992                 fstring str;
2993                 DOM_SID sid;
2994                 gid_t gid;
2995                 char *end;
2996
2997                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2998                                                   entry, "sambaSID",
2999                                                   str, sizeof(str)-1))
3000                         continue;
3001
3002                 if (!string_to_sid(&sid, str))
3003                         goto done;
3004
3005                 if (!smbldap_get_single_attribute(conn->ldap_struct,
3006                                                   entry, "gidNumber",
3007                                                   str, sizeof(str)-1))
3008                         continue;
3009
3010                 gid = strtoul(str, &end, 10);
3011
3012                 if (PTR_DIFF(end, str) != strlen(str))
3013                         goto done;
3014
3015                 if (gid == primary_gid) {
3016                         sid_copy(&(*pp_sids)[0], &sid);
3017                 } else {
3018                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
3019                                                 &num_gids)) {
3020                                 ret = NT_STATUS_NO_MEMORY;
3021                                 goto done;
3022                         }
3023                         if (!add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
3024                                                 &num_sids)) {
3025                                 ret = NT_STATUS_NO_MEMORY;
3026                                 goto done;
3027                         }
3028                 }
3029         }
3030
3031         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
3032                 DEBUG(3, ("primary group of [%s] not found\n",
3033                           pdb_get_username(user)));
3034                 goto done;
3035         }
3036
3037         *p_num_groups = num_sids;
3038
3039         ret = NT_STATUS_OK;
3040
3041  done:
3042
3043         SAFE_FREE(escape_name);
3044         return ret;
3045 }
3046
3047 /**********************************************************************
3048  * Augment a posixGroup object with a sambaGroupMapping domgroup
3049  *********************************************************************/
3050
3051 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
3052                                        struct ldapsam_privates *ldap_state,
3053                                        GROUP_MAP *map)
3054 {
3055         const char *filter, *dn;
3056         LDAPMessage *msg, *entry;
3057         LDAPMod **mods;
3058         int rc;
3059
3060         filter = talloc_asprintf(mem_ctx,
3061                                  "(&(objectClass=posixGroup)(gidNumber=%u))",
3062                                  map->gid);
3063         if (filter == NULL) {
3064                 return NT_STATUS_NO_MEMORY;
3065         }
3066
3067         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3068                                    get_attr_list(mem_ctx, groupmap_attr_list),
3069                                    &msg);
3070         talloc_autofree_ldapmsg(mem_ctx, msg);
3071
3072         if ((rc != LDAP_SUCCESS) ||
3073             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3074             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3075                 return NT_STATUS_NO_SUCH_GROUP;
3076         }
3077
3078         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3079         if (dn == NULL) {
3080                 return NT_STATUS_NO_MEMORY;
3081         }
3082
3083         mods = NULL;
3084         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3085                         "sambaGroupMapping");
3086         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3087                          sid_string_static(&map->sid));
3088         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3089                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3090         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3091                          map->nt_name);
3092         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3093                          map->comment);
3094         talloc_autofree_ldapmod(mem_ctx, mods);
3095
3096         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3097         if (rc != LDAP_SUCCESS) {
3098                 return NT_STATUS_ACCESS_DENIED;
3099         }
3100
3101         return NT_STATUS_OK;
3102 }
3103
3104 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3105                                                 GROUP_MAP *map)
3106 {
3107         struct ldapsam_privates *ldap_state =
3108                 (struct ldapsam_privates *)methods->private_data;
3109         LDAPMessage *msg = NULL;
3110         LDAPMod **mods = NULL;
3111         const char *attrs[] = { NULL };
3112         char *filter;
3113
3114         char *dn;
3115         TALLOC_CTX *mem_ctx;
3116         NTSTATUS result;
3117
3118         DOM_SID sid;
3119
3120         int rc;
3121
3122         mem_ctx = talloc_new(NULL);
3123         if (mem_ctx == NULL) {
3124                 DEBUG(0, ("talloc_new failed\n"));
3125                 return NT_STATUS_NO_MEMORY;
3126         }
3127
3128         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3129                                  sid_string_talloc(mem_ctx, &map->sid));
3130         if (filter == NULL) {
3131                 result = NT_STATUS_NO_MEMORY;
3132                 goto done;
3133         }
3134
3135         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3136                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3137         talloc_autofree_ldapmsg(mem_ctx, msg);
3138
3139         if ((rc == LDAP_SUCCESS) &&
3140             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3141
3142                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3143                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3144                 result = NT_STATUS_GROUP_EXISTS;
3145                 goto done;
3146         }
3147
3148         switch (map->sid_name_use) {
3149
3150         case SID_NAME_DOM_GRP:
3151                 /* To map a domain group we need to have a posix group
3152                    to attach to. */
3153                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3154                 goto done;
3155                 break;
3156
3157         case SID_NAME_ALIAS:
3158                 if (!sid_check_is_in_our_domain(&map->sid)
3159                         && !sid_check_is_in_builtin(&map->sid) )
3160                 {
3161                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3162                                   sid_string_dbg(&map->sid)));
3163                         result = NT_STATUS_INVALID_PARAMETER;
3164                         goto done;
3165                 }
3166                 break;
3167
3168         default:
3169                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3170                           sid_type_lookup(map->sid_name_use)));
3171                 result = NT_STATUS_INVALID_PARAMETER;
3172                 goto done;
3173         }
3174
3175         /* Domain groups have been mapped in a separate routine, we have to
3176          * create an alias now */
3177
3178         if (map->gid == -1) {
3179                 DEBUG(10, ("Refusing to map gid==-1\n"));
3180                 result = NT_STATUS_INVALID_PARAMETER;
3181                 goto done;
3182         }
3183
3184         if (pdb_gid_to_sid(map->gid, &sid)) {
3185                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
3186                           "add\n", map->gid, sid_string_dbg(&sid)));
3187                 result = NT_STATUS_GROUP_EXISTS;
3188                 goto done;
3189         }
3190
3191         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3192          * the best we can get out of LDAP. */
3193
3194         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3195                              sid_string_talloc(mem_ctx, &map->sid),
3196                              lp_ldap_group_suffix());
3197         if (dn == NULL) {
3198                 result = NT_STATUS_NO_MEMORY;
3199                 goto done;
3200         }
3201
3202         mods = NULL;
3203
3204         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3205                          "sambaSidEntry");
3206         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3207                          "sambaGroupMapping");
3208
3209         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3210                          sid_string_talloc(mem_ctx, &map->sid));
3211         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3212                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3213         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3214                          map->nt_name);
3215         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3216                          map->comment);
3217         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3218                          talloc_asprintf(mem_ctx, "%u", map->gid));
3219         talloc_autofree_ldapmod(mem_ctx, mods);
3220
3221         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3222
3223         result = (rc == LDAP_SUCCESS) ?
3224                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3225
3226  done:
3227         TALLOC_FREE(mem_ctx);
3228         return result;
3229 }
3230
3231 /**********************************************************************
3232  * Update a group mapping entry. We're quite strict about what can be changed:
3233  * Only the description and displayname may be changed. It simply does not
3234  * make any sense to change the SID, gid or the type in a mapping.
3235  *********************************************************************/
3236
3237 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3238                                                    GROUP_MAP *map)
3239 {
3240         struct ldapsam_privates *ldap_state =
3241                 (struct ldapsam_privates *)methods->private_data;
3242         int rc;
3243         const char *filter, *dn;
3244         LDAPMessage *msg = NULL;
3245         LDAPMessage *entry = NULL;
3246         LDAPMod **mods = NULL;
3247         TALLOC_CTX *mem_ctx;
3248         NTSTATUS result;
3249
3250         mem_ctx = talloc_new(NULL);
3251         if (mem_ctx == NULL) {
3252                 DEBUG(0, ("talloc_new failed\n"));
3253                 return NT_STATUS_NO_MEMORY;
3254         }
3255
3256         /* Make 100% sure that sid, gid and type are not changed by looking up
3257          * exactly the values we're given in LDAP. */
3258
3259         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3260                                  "(sambaSid=%s)(gidNumber=%u)"
3261                                  "(sambaGroupType=%d))",
3262                                  LDAP_OBJ_GROUPMAP,
3263                                  sid_string_talloc(mem_ctx, &map->sid),
3264                                  map->gid, map->sid_name_use);
3265         if (filter == NULL) {
3266                 result = NT_STATUS_NO_MEMORY;
3267                 goto done;
3268         }
3269
3270         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3271                                    get_attr_list(mem_ctx, groupmap_attr_list),
3272                                    &msg);
3273         talloc_autofree_ldapmsg(mem_ctx, msg);
3274
3275         if ((rc != LDAP_SUCCESS) ||
3276             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3277             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3278                 result = NT_STATUS_NO_SUCH_GROUP;
3279                 goto done;
3280         }
3281
3282         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3283
3284         if (dn == NULL) {
3285                 result = NT_STATUS_NO_MEMORY;
3286                 goto done;
3287         }
3288
3289         mods = NULL;
3290         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3291                          map->nt_name);
3292         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3293                          map->comment);
3294         talloc_autofree_ldapmod(mem_ctx, mods);
3295
3296         if (mods == NULL) {
3297                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3298                           "nothing to do\n"));
3299                 result = NT_STATUS_OK;
3300                 goto done;
3301         }
3302
3303         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3304
3305         if (rc != LDAP_SUCCESS) {
3306                 result = NT_STATUS_ACCESS_DENIED;
3307                 goto done;
3308         }
3309
3310         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3311                   "group %lu in LDAP\n", (unsigned long)map->gid));
3312
3313         result = NT_STATUS_OK;
3314
3315  done:
3316         TALLOC_FREE(mem_ctx);
3317         return result;
3318 }
3319
3320 /**********************************************************************
3321  *********************************************************************/
3322
3323 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3324                                                    DOM_SID sid)
3325 {
3326         struct ldapsam_privates *priv =
3327                 (struct ldapsam_privates *)methods->private_data;
3328         LDAPMessage *msg, *entry;
3329         int rc;
3330         NTSTATUS result;
3331         TALLOC_CTX *mem_ctx;
3332         char *filter;
3333
3334         mem_ctx = talloc_new(NULL);
3335         if (mem_ctx == NULL) {
3336                 DEBUG(0, ("talloc_new failed\n"));
3337                 return NT_STATUS_NO_MEMORY;
3338         }
3339
3340         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3341                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3342                                  sid_string_talloc(mem_ctx, &sid));
3343         if (filter == NULL) {
3344                 result = NT_STATUS_NO_MEMORY;
3345                 goto done;
3346         }
3347         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3348                                    get_attr_list(mem_ctx, groupmap_attr_list),
3349                                    &msg);
3350         talloc_autofree_ldapmsg(mem_ctx, msg);
3351
3352         if ((rc != LDAP_SUCCESS) ||
3353             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3354             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3355                 result = NT_STATUS_NO_SUCH_GROUP;
3356                 goto done;
3357         }
3358
3359         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3360                                   get_attr_list(mem_ctx,
3361                                                 groupmap_attr_list_to_delete));
3362
3363         if ((rc == LDAP_NAMING_VIOLATION) ||
3364             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3365                 const char *attrs[] = { "sambaGroupType", "description",
3366                                         "displayName", "sambaSIDList",
3367                                         NULL };
3368
3369                 /* Second try. Don't delete the sambaSID attribute, this is
3370                    for "old" entries that are tacked on a winbind
3371                    sambaIdmapEntry. */
3372
3373                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3374                                           LDAP_OBJ_GROUPMAP, attrs);
3375         }
3376
3377         if ((rc == LDAP_NAMING_VIOLATION) ||
3378             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3379                 const char *attrs[] = { "sambaGroupType", "description",
3380                                         "displayName", "sambaSIDList",
3381                                         "gidNumber", NULL };
3382
3383                 /* Third try. This is a post-3.0.21 alias (containing only
3384                  * sambaSidEntry and sambaGroupMapping classes), we also have
3385                  * to delete the gidNumber attribute, only the sambaSidEntry
3386                  * remains */
3387
3388                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3389                                           LDAP_OBJ_GROUPMAP, attrs);
3390         }
3391
3392         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3393
3394  done:
3395         TALLOC_FREE(mem_ctx);
3396         return result;
3397  }
3398
3399 /**********************************************************************
3400  *********************************************************************/
3401
3402 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3403                                     bool update)
3404 {
3405         struct ldapsam_privates *ldap_state =
3406                 (struct ldapsam_privates *)my_methods->private_data;
3407         char *filter = NULL;
3408         int rc;
3409         const char **attr_list;
3410
3411         filter = talloc_asprintf(NULL, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3412         if (!filter) {
3413                 return NT_STATUS_NO_MEMORY;
3414         }
3415         attr_list = get_attr_list( NULL, groupmap_attr_list );
3416         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3417                             LDAP_SCOPE_SUBTREE, filter,
3418                             attr_list, 0, &ldap_state->result);
3419         TALLOC_FREE(attr_list);
3420
3421         if (rc != LDAP_SUCCESS) {
3422                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3423                           ldap_err2string(rc)));
3424                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3425                           lp_ldap_group_suffix(), filter));
3426                 ldap_msgfree(ldap_state->result);
3427                 ldap_state->result = NULL;
3428                 TALLOC_FREE(filter);
3429                 return NT_STATUS_UNSUCCESSFUL;
3430         }
3431
3432         TALLOC_FREE(filter);
3433
3434         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3435                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3436                                      ldap_state->result)));
3437
3438         ldap_state->entry =
3439                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3440                                  ldap_state->result);
3441         ldap_state->index = 0;
3442
3443         return NT_STATUS_OK;
3444 }
3445
3446 /**********************************************************************
3447  *********************************************************************/
3448
3449 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3450 {
3451         ldapsam_endsampwent(my_methods);
3452 }
3453
3454 /**********************************************************************
3455  *********************************************************************/
3456
3457 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3458                                     GROUP_MAP *map)
3459 {
3460         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3461         struct ldapsam_privates *ldap_state =
3462                 (struct ldapsam_privates *)my_methods->private_data;
3463         bool bret = False;
3464
3465         while (!bret) {
3466                 if (!ldap_state->entry)
3467                         return ret;
3468
3469                 ldap_state->index++;
3470                 bret = init_group_from_ldap(ldap_state, map,
3471                                             ldap_state->entry);
3472
3473                 ldap_state->entry =
3474                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3475                                         ldap_state->entry);
3476         }
3477
3478         return NT_STATUS_OK;
3479 }
3480
3481 /**********************************************************************
3482  *********************************************************************/
3483
3484 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3485                                            const DOM_SID *domsid, enum lsa_SidType sid_name_use,
3486                                            GROUP_MAP **pp_rmap,
3487                                            size_t *p_num_entries,
3488                                            bool unix_only)
3489 {
3490         GROUP_MAP map;
3491         size_t entries = 0;
3492
3493         *p_num_entries = 0;
3494         *pp_rmap = NULL;
3495
3496         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3497                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3498                           "passdb\n"));
3499                 return NT_STATUS_ACCESS_DENIED;
3500         }
3501
3502         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3503                 if (sid_name_use != SID_NAME_UNKNOWN &&
3504                     sid_name_use != map.sid_name_use) {
3505                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3506                                   "not of the requested type\n", map.nt_name));
3507                         continue;
3508                 }
3509                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3510                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3511                                   "non mapped\n", map.nt_name));
3512                         continue;
3513                 }
3514
3515                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3516                 if (!(*pp_rmap)) {
3517                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3518                                  "enlarge group map!\n"));
3519                         return NT_STATUS_UNSUCCESSFUL;
3520                 }
3521
3522                 (*pp_rmap)[entries] = map;
3523
3524                 entries += 1;
3525
3526         }
3527         ldapsam_endsamgrent(methods);
3528
3529         *p_num_entries = entries;
3530
3531         return NT_STATUS_OK;
3532 }
3533
3534 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3535                                         const DOM_SID *alias,
3536                                         const DOM_SID *member,
3537                                         int modop)
3538 {
3539         struct ldapsam_privates *ldap_state =
3540                 (struct ldapsam_privates *)methods->private_data;
3541         char *dn = NULL;
3542         LDAPMessage *result = NULL;
3543         LDAPMessage *entry = NULL;
3544         int count;
3545         LDAPMod **mods = NULL;
3546         int rc;
3547         enum lsa_SidType type = SID_NAME_USE_NONE;
3548
3549         char *filter = NULL;
3550
3551         if (sid_check_is_in_builtin(alias)) {
3552                 type = SID_NAME_ALIAS;
3553         }
3554
3555         if (sid_check_is_in_our_domain(alias)) {
3556                 type = SID_NAME_ALIAS;
3557         }
3558
3559         if (type == SID_NAME_USE_NONE) {
3560                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3561                           sid_string_dbg(alias)));
3562                 return NT_STATUS_NO_SUCH_ALIAS;
3563         }
3564
3565         if (asprintf(&filter,
3566                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3567                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3568                      type) < 0) {
3569                 return NT_STATUS_NO_MEMORY;
3570         }
3571
3572         if (ldapsam_search_one_group(ldap_state, filter,
3573                                      &result) != LDAP_SUCCESS) {
3574                 SAFE_FREE(filter);
3575                 return NT_STATUS_NO_SUCH_ALIAS;
3576         }
3577
3578         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3579                                    result);
3580
3581         if (count < 1) {
3582                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3583                 ldap_msgfree(result);
3584                 SAFE_FREE(filter);
3585                 return NT_STATUS_NO_SUCH_ALIAS;
3586         }
3587
3588         if (count > 1) {
3589                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3590                           "filter %s: count=%d\n", filter, count));
3591                 ldap_msgfree(result);
3592                 SAFE_FREE(filter);
3593                 return NT_STATUS_NO_SUCH_ALIAS;
3594         }
3595
3596         SAFE_FREE(filter);
3597
3598         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3599                                  result);
3600
3601         if (!entry) {
3602                 ldap_msgfree(result);
3603                 return NT_STATUS_UNSUCCESSFUL;
3604         }
3605
3606         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
3607         if (!dn) {
3608                 ldap_msgfree(result);
3609                 return NT_STATUS_UNSUCCESSFUL;
3610         }
3611
3612         smbldap_set_mod(&mods, modop,
3613                         get_attr_key2string(groupmap_attr_list,
3614                                             LDAP_ATTR_SID_LIST),
3615                         sid_string_static(member));
3616
3617         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3618
3619         ldap_mods_free(mods, True);
3620         ldap_msgfree(result);
3621         SAFE_FREE(dn);
3622
3623         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3624                 return NT_STATUS_MEMBER_IN_ALIAS;
3625         }
3626
3627         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3628                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3629         }
3630
3631         if (rc != LDAP_SUCCESS) {
3632                 return NT_STATUS_UNSUCCESSFUL;
3633         }
3634
3635         return NT_STATUS_OK;
3636 }
3637
3638 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3639                                      const DOM_SID *alias,
3640                                      const DOM_SID *member)
3641 {
3642         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3643 }
3644
3645 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3646                                      const DOM_SID *alias,
3647                                      const DOM_SID *member)
3648 {
3649         return ldapsam_modify_aliasmem(methods, alias, member,
3650                                        LDAP_MOD_DELETE);
3651 }
3652
3653 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3654                                       const DOM_SID *alias,
3655                                       DOM_SID **pp_members,
3656                                       size_t *p_num_members)
3657 {
3658         struct ldapsam_privates *ldap_state =
3659                 (struct ldapsam_privates *)methods->private_data;
3660         LDAPMessage *result = NULL;
3661         LDAPMessage *entry = NULL;
3662         int count;
3663         char **values = NULL;
3664         int i;
3665         char *filter = NULL;
3666         size_t num_members = 0;
3667         enum lsa_SidType type = SID_NAME_USE_NONE;
3668
3669         *pp_members = NULL;
3670         *p_num_members = 0;
3671
3672         if (sid_check_is_in_builtin(alias)) {
3673                 type = SID_NAME_ALIAS;
3674         }
3675
3676         if (sid_check_is_in_our_domain(alias)) {
3677                 type = SID_NAME_ALIAS;
3678         }
3679
3680         if (type == SID_NAME_USE_NONE) {
3681                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3682                           sid_string_dbg(alias)));
3683                 return NT_STATUS_NO_SUCH_ALIAS;
3684         }
3685
3686         if (asprintf(&filter,
3687                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3688                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3689                      type) < 0) {
3690                 return NT_STATUS_NO_MEMORY;
3691         }
3692
3693         if (ldapsam_search_one_group(ldap_state, filter,
3694                                      &result) != LDAP_SUCCESS) {
3695                 SAFE_FREE(filter);
3696                 return NT_STATUS_NO_SUCH_ALIAS;
3697         }
3698
3699         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3700                                    result);
3701
3702         if (count < 1) {
3703                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3704                 ldap_msgfree(result);
3705                 SAFE_FREE(filter);
3706                 return NT_STATUS_NO_SUCH_ALIAS;
3707         }
3708
3709         if (count > 1) {
3710                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3711                           "filter %s: count=%d\n", filter, count));
3712                 ldap_msgfree(result);
3713                 SAFE_FREE(filter);
3714                 return NT_STATUS_NO_SUCH_ALIAS;
3715         }
3716
3717         SAFE_FREE(filter);
3718
3719         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3720                                  result);
3721
3722         if (!entry) {
3723                 ldap_msgfree(result);
3724                 return NT_STATUS_UNSUCCESSFUL;
3725         }
3726
3727         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3728                                  entry,
3729                                  get_attr_key2string(groupmap_attr_list,
3730                                                      LDAP_ATTR_SID_LIST));
3731
3732         if (values == NULL) {
3733                 ldap_msgfree(result);
3734                 return NT_STATUS_OK;
3735         }
3736
3737         count = ldap_count_values(values);
3738
3739         for (i=0; i<count; i++) {
3740                 DOM_SID member;
3741
3742                 if (!string_to_sid(&member, values[i]))
3743                         continue;
3744
3745                 if (!add_sid_to_array(NULL, &member, pp_members, &num_members)) {
3746                         ldap_value_free(values);
3747                         ldap_msgfree(result);
3748                         return NT_STATUS_NO_MEMORY;
3749                 }
3750         }
3751
3752         *p_num_members = num_members;
3753         ldap_value_free(values);
3754         ldap_msgfree(result);
3755
3756         return NT_STATUS_OK;
3757 }
3758
3759 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3760                                           TALLOC_CTX *mem_ctx,
3761                                           const DOM_SID *domain_sid,
3762                                           const DOM_SID *members,
3763                                           size_t num_members,
3764                                           uint32 **pp_alias_rids,
3765                                           size_t *p_num_alias_rids)
3766 {
3767         struct ldapsam_privates *ldap_state =
3768                 (struct ldapsam_privates *)methods->private_data;
3769         LDAP *ldap_struct;
3770
3771         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3772
3773         LDAPMessage *result = NULL;
3774         LDAPMessage *entry = NULL;
3775         int i;
3776         int rc;
3777         char *filter;
3778         enum lsa_SidType type = SID_NAME_USE_NONE;
3779
3780         if (sid_check_is_builtin(domain_sid)) {
3781                 type = SID_NAME_ALIAS;
3782         }
3783
3784         if (sid_check_is_domain(domain_sid)) {
3785                 type = SID_NAME_ALIAS;
3786         }
3787
3788         if (type == SID_NAME_USE_NONE) {
3789                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3790                           sid_string_dbg(domain_sid)));
3791                 return NT_STATUS_UNSUCCESSFUL;
3792         }
3793
3794         filter = talloc_asprintf(mem_ctx,
3795                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3796                                  LDAP_OBJ_GROUPMAP, type);
3797
3798         for (i=0; i<num_members; i++)
3799                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3800                                          filter,
3801                                          sid_string_talloc(mem_ctx,
3802                                                            &members[i]));
3803
3804         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3805
3806         if (filter == NULL) {
3807                 return NT_STATUS_NO_MEMORY;
3808         }
3809
3810         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3811                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3812
3813         if (rc != LDAP_SUCCESS)
3814                 return NT_STATUS_UNSUCCESSFUL;
3815
3816         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3817
3818         for (entry = ldap_first_entry(ldap_struct, result);
3819              entry != NULL;
3820              entry = ldap_next_entry(ldap_struct, entry))
3821         {
3822                 fstring sid_str;
3823                 DOM_SID sid;
3824                 uint32 rid;
3825
3826                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3827                                                   LDAP_ATTRIBUTE_SID,
3828                                                   sid_str,
3829                                                   sizeof(sid_str)-1))
3830                         continue;
3831
3832                 if (!string_to_sid(&sid, sid_str))
3833                         continue;
3834
3835                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3836                         continue;
3837
3838                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3839                                         p_num_alias_rids)) {
3840                         ldap_msgfree(result);
3841                         return NT_STATUS_NO_MEMORY;
3842                 }
3843         }
3844
3845         ldap_msgfree(result);
3846         return NT_STATUS_OK;
3847 }
3848
3849 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3850                                                    int policy_index,
3851                                                    uint32 value)
3852 {
3853         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3854         int rc;
3855         LDAPMod **mods = NULL;
3856         fstring value_string;
3857         const char *policy_attr = NULL;
3858
3859         struct ldapsam_privates *ldap_state =
3860                 (struct ldapsam_privates *)methods->private_data;
3861
3862         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3863
3864         if (!ldap_state->domain_dn) {
3865                 return NT_STATUS_INVALID_PARAMETER;
3866         }
3867
3868         policy_attr = get_account_policy_attr(policy_index);
3869         if (policy_attr == NULL) {
3870                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3871                          "policy\n"));
3872                 return ntstatus;
3873         }
3874
3875         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3876
3877         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3878
3879         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3880                             mods);
3881
3882         ldap_mods_free(mods, True);
3883
3884         if (rc != LDAP_SUCCESS) {
3885                 return ntstatus;
3886         }
3887
3888         if (!cache_account_policy_set(policy_index, value)) {
3889                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3890                          "update local tdb cache\n"));
3891                 return ntstatus;
3892         }
3893
3894         return NT_STATUS_OK;
3895 }
3896
3897 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3898                                            int policy_index, uint32 value)
3899 {
3900         return ldapsam_set_account_policy_in_ldap(methods, policy_index,
3901                                                   value);
3902 }
3903
3904 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3905                                                      int policy_index,
3906                                                      uint32 *value)
3907 {
3908         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3909         LDAPMessage *result = NULL;
3910         LDAPMessage *entry = NULL;
3911         int count;
3912         int rc;
3913         char **vals = NULL;
3914         const char *policy_attr = NULL;
3915
3916         struct ldapsam_privates *ldap_state =
3917                 (struct ldapsam_privates *)methods->private_data;
3918
3919         const char *attrs[2];
3920
3921         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3922
3923         if (!ldap_state->domain_dn) {
3924                 return NT_STATUS_INVALID_PARAMETER;
3925         }
3926
3927         policy_attr = get_account_policy_attr(policy_index);
3928         if (!policy_attr) {
3929                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3930                          "policy index: %d\n", policy_index));
3931                 return ntstatus;
3932         }
3933
3934         attrs[0] = policy_attr;
3935         attrs[1] = NULL;
3936
3937         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3938                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3939                             &result);
3940
3941         if (rc != LDAP_SUCCESS) {
3942                 return ntstatus;
3943         }
3944
3945         count = ldap_count_entries(priv2ld(ldap_state), result);
3946         if (count < 1) {
3947                 goto out;
3948         }
3949
3950         entry = ldap_first_entry(priv2ld(ldap_state), result);
3951         if (entry == NULL) {
3952                 goto out;
3953         }
3954
3955         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3956         if (vals == NULL) {
3957                 goto out;
3958         }
3959
3960         *value = (uint32)atol(vals[0]);
3961
3962         ntstatus = NT_STATUS_OK;
3963
3964 out:
3965         if (vals)
3966                 ldap_value_free(vals);
3967         ldap_msgfree(result);
3968
3969         return ntstatus;
3970 }
3971
3972 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3973
3974    - if user hasn't decided to use account policies inside LDAP just reuse the
3975      old tdb values
3976
3977    - if there is a valid cache entry, return that
3978    - if there is an LDAP entry, update cache and return
3979    - otherwise set to default, update cache and return
3980
3981    Guenther
3982 */
3983 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3984                                            int policy_index, uint32 *value)
3985 {
3986         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3987
3988         if (cache_account_policy_get(policy_index, value)) {
3989                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3990                           "cache\n"));
3991                 return NT_STATUS_OK;
3992         }
3993
3994         ntstatus = ldapsam_get_account_policy_from_ldap(methods, policy_index,
3995                                                         value);
3996         if (NT_STATUS_IS_OK(ntstatus)) {
3997                 goto update_cache;
3998         }
3999
4000         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
4001                   "ldap\n"));
4002
4003 #if 0
4004         /* should we automagically migrate old tdb value here ? */
4005         if (account_policy_get(policy_index, value))
4006                 goto update_ldap;
4007
4008         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
4009                   "default\n", policy_index));
4010 #endif
4011
4012         if (!account_policy_get_default(policy_index, value)) {
4013                 return ntstatus;
4014         }
4015
4016 /* update_ldap: */
4017
4018         ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
4019         if (!NT_STATUS_IS_OK(ntstatus)) {
4020                 return ntstatus;
4021         }
4022
4023  update_cache:
4024
4025         if (!cache_account_policy_set(policy_index, *value)) {
4026                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
4027                          "tdb as a cache\n"));
4028                 return NT_STATUS_UNSUCCESSFUL;
4029         }
4030
4031         return NT_STATUS_OK;
4032 }
4033
4034 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
4035                                     const DOM_SID *domain_sid,
4036                                     int num_rids,
4037                                     uint32 *rids,
4038                                     const char **names,
4039                                     enum lsa_SidType *attrs)
4040 {
4041         struct ldapsam_privates *ldap_state =
4042                 (struct ldapsam_privates *)methods->private_data;
4043         LDAPMessage *msg = NULL;
4044         LDAPMessage *entry;
4045         char *allsids = NULL;
4046         int i, rc, num_mapped;
4047         NTSTATUS result = NT_STATUS_NO_MEMORY;
4048         TALLOC_CTX *mem_ctx;
4049         LDAP *ld;
4050         bool is_builtin;
4051
4052         mem_ctx = talloc_new(NULL);
4053         if (mem_ctx == NULL) {
4054                 DEBUG(0, ("talloc_new failed\n"));
4055                 goto done;
4056         }
4057
4058         if (!sid_check_is_builtin(domain_sid) &&
4059             !sid_check_is_domain(domain_sid)) {
4060                 result = NT_STATUS_INVALID_PARAMETER;
4061                 goto done;
4062         }
4063
4064         for (i=0; i<num_rids; i++)
4065                 attrs[i] = SID_NAME_UNKNOWN;
4066
4067         allsids = talloc_strdup(mem_ctx, "");
4068         if (allsids == NULL) {
4069                 goto done;
4070         }
4071
4072         for (i=0; i<num_rids; i++) {
4073                 DOM_SID sid;
4074                 sid_compose(&sid, domain_sid, rids[i]);
4075                 allsids = talloc_asprintf_append_buffer(allsids, "(sambaSid=%s)",
4076                                                  sid_string_static(&sid));
4077                 if (allsids == NULL) {
4078                         goto done;
4079                 }
4080         }
4081
4082         /* First look for users */
4083
4084         {
4085                 char *filter;
4086                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
4087
4088                 filter = talloc_asprintf(
4089                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
4090                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
4091
4092                 if (filter == NULL) {
4093                         goto done;
4094                 }
4095
4096                 rc = smbldap_search(ldap_state->smbldap_state,
4097                                     lp_ldap_user_suffix(),
4098                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4099                                     &msg);
4100                 talloc_autofree_ldapmsg(mem_ctx, msg);
4101         }
4102
4103         if (rc != LDAP_SUCCESS)
4104                 goto done;
4105
4106         ld = ldap_state->smbldap_state->ldap_struct;
4107         num_mapped = 0;
4108
4109         for (entry = ldap_first_entry(ld, msg);
4110              entry != NULL;
4111              entry = ldap_next_entry(ld, entry)) {
4112                 uint32 rid;
4113                 int rid_index;
4114                 const char *name;
4115
4116                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4117                                                     &rid)) {
4118                         DEBUG(2, ("Could not find sid from ldap entry\n"));
4119                         continue;
4120                 }
4121
4122                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
4123                                                        names);
4124                 if (name == NULL) {
4125                         DEBUG(2, ("Could not retrieve uid attribute\n"));
4126                         continue;
4127                 }
4128
4129                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4130                         if (rid == rids[rid_index])
4131                                 break;
4132                 }
4133
4134                 if (rid_index == num_rids) {
4135                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4136                         continue;
4137                 }
4138
4139                 attrs[rid_index] = SID_NAME_USER;
4140                 names[rid_index] = name;
4141                 num_mapped += 1;
4142         }
4143
4144         if (num_mapped == num_rids) {
4145                 /* No need to look for groups anymore -- we're done */
4146                 result = NT_STATUS_OK;
4147                 goto done;
4148         }
4149
4150         /* Same game for groups */
4151
4152         {
4153                 char *filter;
4154                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
4155                                              "sambaGroupType", NULL };
4156
4157                 filter = talloc_asprintf(
4158                         mem_ctx, "(&(objectClass=%s)(|%s))",
4159                         LDAP_OBJ_GROUPMAP, allsids);
4160                 if (filter == NULL) {
4161                         goto done;
4162                 }
4163
4164                 rc = smbldap_search(ldap_state->smbldap_state,
4165                                     lp_ldap_group_suffix(),
4166                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4167                                     &msg);
4168                 talloc_autofree_ldapmsg(mem_ctx, msg);
4169         }
4170
4171         if (rc != LDAP_SUCCESS)
4172                 goto done;
4173
4174         /* ldap_struct might have changed due to a reconnect */
4175
4176         ld = ldap_state->smbldap_state->ldap_struct;
4177
4178         /* For consistency checks, we already checked we're only domain or builtin */
4179
4180         is_builtin = sid_check_is_builtin(domain_sid);
4181
4182         for (entry = ldap_first_entry(ld, msg);
4183              entry != NULL;
4184              entry = ldap_next_entry(ld, entry))
4185         {
4186                 uint32 rid;
4187                 int rid_index;
4188                 const char *attr;
4189                 enum lsa_SidType type;
4190                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
4191
4192                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
4193                                                        mem_ctx);
4194                 if (attr == NULL) {
4195                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
4196                                   dn));
4197                         continue;
4198                 }
4199
4200                 type = (enum lsa_SidType)atol(attr);
4201
4202                 /* Consistency checks */
4203                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
4204                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
4205                                      (type != SID_NAME_DOM_GRP)))) {
4206                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
4207                 }
4208
4209                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4210                                                     &rid)) {
4211                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
4212                         continue;
4213                 }
4214
4215                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
4216
4217                 if (attr == NULL) {
4218                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
4219                                    dn));
4220                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
4221                 }
4222
4223                 if (attr == NULL) {
4224                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
4225                                   dn));
4226                         continue;
4227                 }
4228
4229                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4230                         if (rid == rids[rid_index])
4231                                 break;
4232                 }
4233
4234                 if (rid_index == num_rids) {
4235                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4236                         continue;
4237                 }
4238
4239                 attrs[rid_index] = type;
4240                 names[rid_index] = attr;
4241                 num_mapped += 1;
4242         }
4243
4244         result = NT_STATUS_NONE_MAPPED;
4245
4246         if (num_mapped > 0)
4247                 result = (num_mapped == num_rids) ?
4248                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
4249  done:
4250         TALLOC_FREE(mem_ctx);
4251         return result;
4252 }
4253
4254 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
4255 {
4256         char *filter = NULL;
4257         char *escaped = NULL;
4258         char *result = NULL;
4259
4260         asprintf(&filter, "(&%s(objectclass=sambaSamAccount))",
4261                  "(uid=%u)");
4262         if (filter == NULL) goto done;
4263
4264         escaped = escape_ldap_string_alloc(username);
4265         if (escaped == NULL) goto done;
4266
4267         result = talloc_string_sub(mem_ctx, filter, "%u", username);
4268
4269  done:
4270         SAFE_FREE(filter);
4271         SAFE_FREE(escaped);
4272
4273         return result;
4274 }
4275
4276 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
4277 {
4278         int i, num = 0;
4279         va_list ap;
4280         const char **result;
4281
4282         va_start(ap, mem_ctx);
4283         while (va_arg(ap, const char *) != NULL)
4284                 num += 1;
4285         va_end(ap);
4286
4287         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
4288                 return NULL;
4289         }
4290
4291         va_start(ap, mem_ctx);
4292         for (i=0; i<num; i++) {
4293                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
4294                 if (result[i] == NULL) {
4295                         talloc_free(result);
4296                         return NULL;
4297                 }
4298         }
4299         va_end(ap);
4300
4301         result[num] = NULL;
4302         return result;
4303 }
4304
4305 struct ldap_search_state {
4306         struct smbldap_state *connection;
4307
4308         uint32 acct_flags;
4309         uint16 group_type;
4310
4311         const char *base;
4312         int scope;
4313         const char *filter;
4314         const char **attrs;
4315         int attrsonly;
4316         void *pagedresults_cookie;
4317
4318         LDAPMessage *entries, *current_entry;
4319         bool (*ldap2displayentry)(struct ldap_search_state *state,
4320                                   TALLOC_CTX *mem_ctx,
4321                                   LDAP *ld, LDAPMessage *entry,
4322                                   struct samr_displayentry *result);
4323 };
4324
4325 static bool ldapsam_search_firstpage(struct pdb_search *search)
4326 {
4327         struct ldap_search_state *state =
4328                 (struct ldap_search_state *)search->private_data;
4329         LDAP *ld;
4330         int rc = LDAP_OPERATIONS_ERROR;
4331
4332         state->entries = NULL;
4333
4334         if (state->connection->paged_results) {
4335                 rc = smbldap_search_paged(state->connection, state->base,
4336                                           state->scope, state->filter,
4337                                           state->attrs, state->attrsonly,
4338                                           lp_ldap_page_size(), &state->entries,
4339                                           &state->pagedresults_cookie);
4340         }
4341
4342         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
4343
4344                 if (state->entries != NULL) {
4345                         /* Left over from unsuccessful paged attempt */
4346                         ldap_msgfree(state->entries);
4347                         state->entries = NULL;
4348                 }
4349
4350                 rc = smbldap_search(state->connection, state->base,
4351                                     state->scope, state->filter, state->attrs,
4352                                     state->attrsonly, &state->entries);
4353
4354                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4355                         return False;
4356
4357                 /* Ok, the server was lying. It told us it could do paged
4358                  * searches when it could not. */
4359                 state->connection->paged_results = False;
4360         }
4361
4362         ld = state->connection->ldap_struct;
4363         if ( ld == NULL) {
4364                 DEBUG(5, ("Don't have an LDAP connection right after a "
4365                           "search\n"));
4366                 return False;
4367         }
4368         state->current_entry = ldap_first_entry(ld, state->entries);
4369
4370         if (state->current_entry == NULL) {
4371                 ldap_msgfree(state->entries);
4372                 state->entries = NULL;
4373         }
4374
4375         return True;
4376 }
4377
4378 static bool ldapsam_search_nextpage(struct pdb_search *search)
4379 {
4380         struct ldap_search_state *state =
4381                 (struct ldap_search_state *)search->private_data;
4382         int rc;
4383
4384         if (!state->connection->paged_results) {
4385                 /* There is no next page when there are no paged results */
4386                 return False;
4387         }
4388
4389         rc = smbldap_search_paged(state->connection, state->base,
4390                                   state->scope, state->filter, state->attrs,
4391                                   state->attrsonly, lp_ldap_page_size(),
4392                                   &state->entries,
4393                                   &state->pagedresults_cookie);
4394
4395         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4396                 return False;
4397
4398         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4399
4400         if (state->current_entry == NULL) {
4401                 ldap_msgfree(state->entries);
4402                 state->entries = NULL;
4403         }
4404
4405         return True;
4406 }
4407
4408 static bool ldapsam_search_next_entry(struct pdb_search *search,
4409                                       struct samr_displayentry *entry)
4410 {
4411         struct ldap_search_state *state =
4412                 (struct ldap_search_state *)search->private_data;
4413         bool result;
4414
4415  retry:
4416         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4417                 return False;
4418
4419         if ((state->entries == NULL) &&
4420             !ldapsam_search_nextpage(search))
4421                     return False;
4422
4423         result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
4424                                           state->current_entry, entry);
4425
4426         if (!result) {
4427                 char *dn;
4428                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4429                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4430                 if (dn != NULL) ldap_memfree(dn);
4431         }
4432
4433         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4434
4435         if (state->current_entry == NULL) {
4436                 ldap_msgfree(state->entries);
4437                 state->entries = NULL;
4438         }
4439
4440         if (!result) goto retry;
4441
4442         return True;
4443 }
4444
4445 static void ldapsam_search_end(struct pdb_search *search)
4446 {
4447         struct ldap_search_state *state =
4448                 (struct ldap_search_state *)search->private_data;
4449         int rc;
4450
4451         if (state->pagedresults_cookie == NULL)
4452                 return;
4453
4454         if (state->entries != NULL)
4455                 ldap_msgfree(state->entries);
4456
4457         state->entries = NULL;
4458         state->current_entry = NULL;
4459
4460         if (!state->connection->paged_results)
4461                 return;
4462
4463         /* Tell the LDAP server we're not interested in the rest anymore. */
4464
4465         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4466                                   state->filter, state->attrs,
4467                                   state->attrsonly, 0, &state->entries,
4468                                   &state->pagedresults_cookie);
4469
4470         if (rc != LDAP_SUCCESS)
4471                 DEBUG(5, ("Could not end search properly\n"));
4472
4473         return;
4474 }
4475
4476 static bool ldapuser2displayentry(struct ldap_search_state *state,
4477                                   TALLOC_CTX *mem_ctx,
4478                                   LDAP *ld, LDAPMessage *entry,
4479                                   struct samr_displayentry *result)
4480 {
4481         char **vals;
4482         DOM_SID sid;
4483         uint32 acct_flags;
4484
4485         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4486         if ((vals == NULL) || (vals[0] == NULL)) {
4487                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4488                 return False;
4489         }
4490         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4491         ldap_value_free(vals);
4492
4493         if ((state->acct_flags != 0) &&
4494             ((state->acct_flags & acct_flags) == 0))
4495                 return False;
4496
4497         result->acct_flags = acct_flags;
4498         result->account_name = "";
4499         result->fullname = "";
4500         result->description = "";
4501
4502         vals = ldap_get_values(ld, entry, "uid");
4503         if ((vals == NULL) || (vals[0] == NULL)) {
4504                 DEBUG(5, ("\"uid\" not found\n"));
4505                 return False;
4506         }
4507         pull_utf8_talloc(mem_ctx,
4508                          CONST_DISCARD(char **, &result->account_name),
4509                          vals[0]);
4510         ldap_value_free(vals);
4511
4512         vals = ldap_get_values(ld, entry, "displayName");
4513         if ((vals == NULL) || (vals[0] == NULL))
4514                 DEBUG(8, ("\"displayName\" not found\n"));
4515         else
4516                 pull_utf8_talloc(mem_ctx,
4517                                  CONST_DISCARD(char **, &result->fullname),
4518                                  vals[0]);
4519         ldap_value_free(vals);
4520
4521         vals = ldap_get_values(ld, entry, "description");
4522         if ((vals == NULL) || (vals[0] == NULL))
4523                 DEBUG(8, ("\"description\" not found\n"));
4524         else
4525                 pull_utf8_talloc(mem_ctx,
4526                                  CONST_DISCARD(char **, &result->description),
4527                                  vals[0]);
4528         ldap_value_free(vals);
4529
4530         if ((result->account_name == NULL) ||
4531             (result->fullname == NULL) ||
4532             (result->description == NULL)) {
4533                 DEBUG(0, ("talloc failed\n"));
4534                 return False;
4535         }
4536
4537         vals = ldap_get_values(ld, entry, "sambaSid");
4538         if ((vals == NULL) || (vals[0] == NULL)) {
4539                 DEBUG(0, ("\"objectSid\" not found\n"));
4540                 return False;
4541         }
4542
4543         if (!string_to_sid(&sid, vals[0])) {
4544                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4545                 ldap_value_free(vals);
4546                 return False;
4547         }
4548         ldap_value_free(vals);
4549
4550         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4551                 DEBUG(0, ("sid %s does not belong to our domain\n",
4552                           sid_string_dbg(&sid)));
4553                 return False;
4554         }
4555
4556         return True;
4557 }
4558
4559
4560 static bool ldapsam_search_users(struct pdb_methods *methods,
4561                                  struct pdb_search *search,
4562                                  uint32 acct_flags)
4563 {
4564         struct ldapsam_privates *ldap_state =
4565                 (struct ldapsam_privates *)methods->private_data;
4566         struct ldap_search_state *state;
4567
4568         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4569         if (state == NULL) {
4570                 DEBUG(0, ("talloc failed\n"));
4571                 return False;
4572         }
4573
4574         state->connection = ldap_state->smbldap_state;
4575
4576         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4577                 state->base = lp_ldap_user_suffix();
4578         else if ((acct_flags != 0) &&
4579                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4580                 state->base = lp_ldap_machine_suffix();
4581         else
4582                 state->base = lp_ldap_suffix();
4583
4584         state->acct_flags = acct_flags;
4585         state->base = talloc_strdup(search->mem_ctx, state->base);
4586         state->scope = LDAP_SCOPE_SUBTREE;
4587         state->filter = get_ldap_filter(search->mem_ctx, "*");
4588         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4589                                     "displayName", "description",
4590                                     "sambaAcctFlags", NULL);
4591         state->attrsonly = 0;
4592         state->pagedresults_cookie = NULL;
4593         state->entries = NULL;
4594         state->ldap2displayentry = ldapuser2displayentry;
4595
4596         if ((state->filter == NULL) || (state->attrs == NULL)) {
4597                 DEBUG(0, ("talloc failed\n"));
4598                 return False;
4599         }
4600
4601         search->private_data = state;
4602         search->next_entry = ldapsam_search_next_entry;
4603         search->search_end = ldapsam_search_end;
4604
4605         return ldapsam_search_firstpage(search);
4606 }
4607
4608 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4609                                    TALLOC_CTX *mem_ctx,
4610                                    LDAP *ld, LDAPMessage *entry,
4611                                    struct samr_displayentry *result)
4612 {
4613         char **vals;
4614         DOM_SID sid;
4615         uint16 group_type;
4616
4617         result->account_name = "";
4618         result->fullname = "";
4619         result->description = "";
4620
4621
4622         vals = ldap_get_values(ld, entry, "sambaGroupType");
4623         if ((vals == NULL) || (vals[0] == NULL)) {
4624                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4625                 if (vals != NULL) {
4626                         ldap_value_free(vals);
4627                 }
4628                 return False;
4629         }
4630
4631         group_type = atoi(vals[0]);
4632
4633         if ((state->group_type != 0) &&
4634             ((state->group_type != group_type))) {
4635                 ldap_value_free(vals);
4636                 return False;
4637         }
4638
4639         ldap_value_free(vals);
4640
4641         /* display name is the NT group name */
4642
4643         vals = ldap_get_values(ld, entry, "displayName");
4644         if ((vals == NULL) || (vals[0] == NULL)) {
4645                 DEBUG(8, ("\"displayName\" not found\n"));
4646
4647                 /* fallback to the 'cn' attribute */
4648                 vals = ldap_get_values(ld, entry, "cn");
4649                 if ((vals == NULL) || (vals[0] == NULL)) {
4650                         DEBUG(5, ("\"cn\" not found\n"));
4651                         return False;
4652                 }
4653                 pull_utf8_talloc(mem_ctx,
4654                                  CONST_DISCARD(char **, &result->account_name),
4655                                  vals[0]);
4656         }
4657         else {
4658                 pull_utf8_talloc(mem_ctx,
4659                                  CONST_DISCARD(char **, &result->account_name),
4660                                  vals[0]);
4661         }
4662
4663         ldap_value_free(vals);
4664
4665         vals = ldap_get_values(ld, entry, "description");
4666         if ((vals == NULL) || (vals[0] == NULL))
4667                 DEBUG(8, ("\"description\" not found\n"));
4668         else
4669                 pull_utf8_talloc(mem_ctx,
4670                                  CONST_DISCARD(char **, &result->description),
4671                                  vals[0]);
4672         ldap_value_free(vals);
4673
4674         if ((result->account_name == NULL) ||
4675             (result->fullname == NULL) ||
4676             (result->description == NULL)) {
4677                 DEBUG(0, ("talloc failed\n"));
4678                 return False;
4679         }
4680
4681         vals = ldap_get_values(ld, entry, "sambaSid");
4682         if ((vals == NULL) || (vals[0] == NULL)) {
4683                 DEBUG(0, ("\"objectSid\" not found\n"));
4684                 if (vals != NULL) {
4685                         ldap_value_free(vals);
4686                 }
4687                 return False;
4688         }
4689
4690         if (!string_to_sid(&sid, vals[0])) {
4691                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4692                 return False;
4693         }
4694
4695         ldap_value_free(vals);
4696
4697         switch (group_type) {
4698                 case SID_NAME_DOM_GRP:
4699                 case SID_NAME_ALIAS:
4700
4701                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4702                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4703                         {
4704                                 DEBUG(0, ("%s is not in our domain\n",
4705                                           sid_string_dbg(&sid)));
4706                                 return False;
4707                         }
4708                         break;
4709
4710                 default:
4711                         DEBUG(0,("unkown group type: %d\n", group_type));
4712                         return False;
4713         }
4714
4715         return True;
4716 }
4717
4718 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4719                                      struct pdb_search *search,
4720                                      const DOM_SID *sid,
4721                                      enum lsa_SidType type)
4722 {
4723         struct ldapsam_privates *ldap_state =
4724                 (struct ldapsam_privates *)methods->private_data;
4725         struct ldap_search_state *state;
4726
4727         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4728         if (state == NULL) {
4729                 DEBUG(0, ("talloc failed\n"));
4730                 return False;
4731         }
4732
4733         state->connection = ldap_state->smbldap_state;
4734
4735         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4736         state->connection = ldap_state->smbldap_state;
4737         state->scope = LDAP_SCOPE_SUBTREE;
4738         state->filter = talloc_asprintf(search->mem_ctx,
4739                                         "(&(objectclass=sambaGroupMapping)"
4740                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4741                                         type, sid_string_static(sid));
4742         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4743                                     "displayName", "description",
4744                                     "sambaGroupType", NULL);
4745         state->attrsonly = 0;
4746         state->pagedresults_cookie = NULL;
4747         state->entries = NULL;
4748         state->group_type = type;
4749         state->ldap2displayentry = ldapgroup2displayentry;
4750
4751         if ((state->filter == NULL) || (state->attrs == NULL)) {
4752                 DEBUG(0, ("talloc failed\n"));
4753                 return False;
4754         }
4755
4756         search->private_data = state;
4757         search->next_entry = ldapsam_search_next_entry;
4758         search->search_end = ldapsam_search_end;
4759
4760         return ldapsam_search_firstpage(search);
4761 }
4762
4763 static bool ldapsam_search_groups(struct pdb_methods *methods,
4764                                   struct pdb_search *search)
4765 {
4766         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4767 }
4768
4769 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4770                                    struct pdb_search *search,
4771                                    const DOM_SID *sid)
4772 {
4773         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4774 }
4775
4776 static bool ldapsam_rid_algorithm(struct pdb_methods *methods)
4777 {
4778         return False;
4779 }
4780
4781 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4782                                     uint32 *rid)
4783 {
4784         struct smbldap_state *smbldap_state = priv->smbldap_state;
4785
4786         LDAPMessage *result = NULL;
4787         LDAPMessage *entry = NULL;
4788         LDAPMod **mods = NULL;
4789         NTSTATUS status;
4790         char *value;
4791         int rc;
4792         uint32 nextRid = 0;
4793         const char *dn;
4794
4795         TALLOC_CTX *mem_ctx;
4796
4797         mem_ctx = talloc_new(NULL);
4798         if (mem_ctx == NULL) {
4799                 DEBUG(0, ("talloc_new failed\n"));
4800                 return NT_STATUS_NO_MEMORY;
4801         }
4802
4803         status = smbldap_search_domain_info(smbldap_state, &result,
4804                                             get_global_sam_name(), False);
4805         if (!NT_STATUS_IS_OK(status)) {
4806                 DEBUG(3, ("Could not get domain info: %s\n",
4807                           nt_errstr(status)));
4808                 goto done;
4809         }
4810
4811         talloc_autofree_ldapmsg(mem_ctx, result);
4812
4813         entry = ldap_first_entry(priv2ld(priv), result);
4814         if (entry == NULL) {
4815                 DEBUG(0, ("Could not get domain info entry\n"));
4816                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4817                 goto done;
4818         }
4819
4820         /* Find the largest of the three attributes "sambaNextRid",
4821            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4822            concept of differentiating between user and group rids, and will
4823            use only "sambaNextRid" in the future. But for compatibility
4824            reasons I look if others have chosen different strategies -- VL */
4825
4826         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4827                                                 "sambaNextRid", mem_ctx);
4828         if (value != NULL) {
4829                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4830                 nextRid = MAX(nextRid, tmp);
4831         }
4832
4833         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4834                                                 "sambaNextUserRid", mem_ctx);
4835         if (value != NULL) {
4836                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4837                 nextRid = MAX(nextRid, tmp);
4838         }
4839
4840         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4841                                                 "sambaNextGroupRid", mem_ctx);
4842         if (value != NULL) {
4843                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4844                 nextRid = MAX(nextRid, tmp);
4845         }
4846
4847         if (nextRid == 0) {
4848                 nextRid = BASE_RID-1;
4849         }
4850
4851         nextRid += 1;
4852
4853         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4854                          talloc_asprintf(mem_ctx, "%d", nextRid));
4855         talloc_autofree_ldapmod(mem_ctx, mods);
4856
4857         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4858                 status = NT_STATUS_NO_MEMORY;
4859                 goto done;
4860         }
4861
4862         rc = smbldap_modify(smbldap_state, dn, mods);
4863
4864         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4865          * please retry" */
4866
4867         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4868
4869  done:
4870         if (NT_STATUS_IS_OK(status)) {
4871                 *rid = nextRid;
4872         }
4873
4874         TALLOC_FREE(mem_ctx);
4875         return status;
4876 }
4877
4878 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4879 {
4880         int i;
4881
4882         for (i=0; i<10; i++) {
4883                 NTSTATUS result = ldapsam_get_new_rid(
4884                         (struct ldapsam_privates *)methods->private_data, rid);
4885                 if (NT_STATUS_IS_OK(result)) {
4886                         return result;
4887                 }
4888
4889                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4890                         return result;
4891                 }
4892
4893                 /* The ldap update failed (maybe a race condition), retry */
4894         }
4895
4896         /* Tried 10 times, fail. */
4897         return NT_STATUS_ACCESS_DENIED;
4898 }
4899
4900 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4901 {
4902         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4903         return NT_STATUS_IS_OK(result) ? True : False;
4904 }
4905
4906 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
4907                               const DOM_SID *sid,
4908                               union unid_t *id, enum lsa_SidType *type)
4909 {
4910         struct ldapsam_privates *priv =
4911                 (struct ldapsam_privates *)methods->private_data;
4912         char *filter;
4913         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4914                                 NULL };
4915         LDAPMessage *result = NULL;
4916         LDAPMessage *entry = NULL;
4917         bool ret = False;
4918         char *value;
4919         int rc;
4920
4921         TALLOC_CTX *mem_ctx;
4922
4923         mem_ctx = talloc_new(NULL);
4924         if (mem_ctx == NULL) {
4925                 DEBUG(0, ("talloc_new failed\n"));
4926                 return False;
4927         }
4928
4929         filter = talloc_asprintf(mem_ctx,
4930                                  "(&(sambaSid=%s)"
4931                                  "(|(objectClass=%s)(objectClass=%s)))",
4932                                  sid_string_talloc(mem_ctx, sid),
4933                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4934         if (filter == NULL) {
4935                 DEBUG(5, ("talloc_asprintf failed\n"));
4936                 goto done;
4937         }
4938
4939         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4940                                    attrs, &result);
4941         if (rc != LDAP_SUCCESS) {
4942                 goto done;
4943         }
4944         talloc_autofree_ldapmsg(mem_ctx, result);
4945
4946         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4947                 DEBUG(10, ("Got %d entries, expected one\n",
4948                            ldap_count_entries(priv2ld(priv), result)));
4949                 goto done;
4950         }
4951
4952         entry = ldap_first_entry(priv2ld(priv), result);
4953
4954         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4955                                                 "sambaGroupType", mem_ctx);
4956
4957         if (value != NULL) {
4958                 const char *gid_str;
4959                 /* It's a group */
4960
4961                 gid_str = smbldap_talloc_single_attribute(
4962                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4963                 if (gid_str == NULL) {
4964                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4965                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4966                                                     entry)));
4967                         goto done;
4968                 }
4969
4970                 id->gid = strtoul(gid_str, NULL, 10);
4971                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4972                 ret = True;
4973                 goto done;
4974         }
4975
4976         /* It must be a user */
4977
4978         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4979                                                 "uidNumber", mem_ctx);
4980         if (value == NULL) {
4981                 DEBUG(1, ("Could not find uidNumber in %s\n",
4982                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4983                 goto done;
4984         }
4985
4986         id->uid = strtoul(value, NULL, 10);
4987         *type = SID_NAME_USER;
4988
4989         ret = True;
4990  done:
4991         TALLOC_FREE(mem_ctx);
4992         return ret;
4993 }
4994
4995 /*
4996  * The following functions is called only if
4997  * ldapsam:trusted and ldapsam:editposix are
4998  * set to true
4999  */
5000
5001 /*
5002  * ldapsam_create_user creates a new
5003  * posixAccount and sambaSamAccount object
5004  * in the ldap users subtree
5005  *
5006  * The uid is allocated by winbindd.
5007  */
5008
5009 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
5010                                     TALLOC_CTX *tmp_ctx, const char *name,
5011                                     uint32 acb_info, uint32 *rid)
5012 {
5013         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5014         LDAPMessage *entry = NULL;
5015         LDAPMessage *result = NULL;
5016         uint32 num_result;
5017         bool is_machine = False;
5018         bool add_posix = False;
5019         LDAPMod **mods = NULL;
5020         struct samu *user;
5021         char *filter;
5022         char *username;
5023         char *homedir;
5024         char *gidstr;
5025         char *uidstr;
5026         char *shell;
5027         const char *dn = NULL;
5028         DOM_SID group_sid;
5029         DOM_SID user_sid;
5030         gid_t gid = -1;
5031         uid_t uid = -1;
5032         NTSTATUS ret;
5033         int rc;
5034
5035         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
5036               acb_info & ACB_WSTRUST ||
5037               acb_info & ACB_SVRTRUST ||
5038               acb_info & ACB_DOMTRUST) {
5039                 is_machine = True;
5040         }
5041
5042         username = escape_ldap_string_alloc(name);
5043         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
5044                                  username, LDAP_OBJ_POSIXACCOUNT);
5045         SAFE_FREE(username);
5046
5047         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5048         if (rc != LDAP_SUCCESS) {
5049                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
5050                 return NT_STATUS_UNSUCCESSFUL;
5051         }
5052         talloc_autofree_ldapmsg(tmp_ctx, result);
5053
5054         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5055
5056         if (num_result > 1) {
5057                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
5058                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5059         }
5060
5061         if (num_result == 1) {
5062                 char *tmp;
5063                 /* check if it is just a posix account.
5064                  * or if there is a sid attached to this entry
5065                  */
5066
5067                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5068                 if (!entry) {
5069                         return NT_STATUS_UNSUCCESSFUL;
5070                 }
5071
5072                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5073                 if (tmp) {
5074                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5075                         return NT_STATUS_USER_EXISTS;
5076                 }
5077
5078                 /* it is just a posix account, retrieve the dn for later use */
5079                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5080                 if (!dn) {
5081                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5082                         return NT_STATUS_NO_MEMORY;
5083                 }
5084         }
5085
5086         if (num_result == 0) {
5087                 add_posix = True;
5088         }
5089
5090         /* Create the basic samu structure and generate the mods for the ldap commit */
5091         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5092                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5093                 return ret;
5094         }
5095
5096         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5097
5098         user = samu_new(tmp_ctx);
5099         if (!user) {
5100                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5101                 return NT_STATUS_NO_MEMORY;
5102         }
5103
5104         if (!pdb_set_username(user, name, PDB_SET)) {
5105                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5106                 return NT_STATUS_UNSUCCESSFUL;
5107         }
5108         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5109                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5110                 return NT_STATUS_UNSUCCESSFUL;
5111         }
5112         if (is_machine) {
5113                 if (acb_info & ACB_NORMAL) {
5114                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5115                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5116                                 return NT_STATUS_UNSUCCESSFUL;
5117                         }
5118                 } else {
5119                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5120                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5121                                 return NT_STATUS_UNSUCCESSFUL;
5122                         }
5123                 }
5124         } else {
5125                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5126                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5127                         return NT_STATUS_UNSUCCESSFUL;
5128                 }
5129         }
5130
5131         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5132                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5133                 return NT_STATUS_UNSUCCESSFUL;
5134         }
5135
5136         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
5137                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5138                 return NT_STATUS_UNSUCCESSFUL;
5139         }
5140
5141         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5142                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5143         }
5144         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5145
5146         if (add_posix) {
5147                 char *escape_name;
5148
5149                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5150
5151                 /* retrieve the Domain Users group gid */
5152                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
5153                     !sid_to_gid(&group_sid, &gid)) {
5154                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5155                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5156                 }
5157
5158                 /* lets allocate a new userid for this user */
5159                 if (!winbind_allocate_uid(&uid)) {
5160                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5161                         return NT_STATUS_UNSUCCESSFUL;
5162                 }
5163
5164
5165                 if (is_machine) {
5166                         /* TODO: choose a more appropriate default for machines */
5167                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5168                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5169                 } else {
5170                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5171                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5172                 }
5173                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
5174                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5175
5176                 escape_name = escape_rdn_val_string_alloc(name);
5177                 if (!escape_name) {
5178                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5179                         return NT_STATUS_NO_MEMORY;
5180                 }
5181
5182                 if (is_machine) {
5183                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5184                 } else {
5185                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5186                 }
5187
5188                 SAFE_FREE(escape_name);
5189
5190                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5191                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5192                         return NT_STATUS_NO_MEMORY;
5193                 }
5194
5195                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5196                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5197                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5198                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5199                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5200                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5201                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5202         }
5203
5204         talloc_autofree_ldapmod(tmp_ctx, mods);
5205
5206         if (add_posix) {
5207                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5208         } else {
5209                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5210         }
5211
5212         if (rc != LDAP_SUCCESS) {
5213                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5214                 return NT_STATUS_UNSUCCESSFUL;
5215         }
5216
5217         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5218
5219         flush_pwnam_cache();
5220
5221         return NT_STATUS_OK;
5222 }
5223
5224 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5225 {
5226         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5227         LDAPMessage *result = NULL;
5228         LDAPMessage *entry = NULL;
5229         int num_result;
5230         const char *dn;
5231         char *filter;
5232         int rc;
5233
5234         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5235
5236         filter = talloc_asprintf(tmp_ctx,
5237                                  "(&(uid=%s)"
5238                                  "(objectClass=%s)"
5239                                  "(objectClass=%s))",
5240                                  pdb_get_username(sam_acct),
5241                                  LDAP_OBJ_POSIXACCOUNT,
5242                                  LDAP_OBJ_SAMBASAMACCOUNT);
5243         if (filter == NULL) {
5244                 return NT_STATUS_NO_MEMORY;
5245         }
5246
5247         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5248         if (rc != LDAP_SUCCESS) {
5249                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5250                 return NT_STATUS_UNSUCCESSFUL;
5251         }
5252         talloc_autofree_ldapmsg(tmp_ctx, result);
5253
5254         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5255
5256         if (num_result == 0) {
5257                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5258                 return NT_STATUS_NO_SUCH_USER;
5259         }
5260
5261         if (num_result > 1) {
5262                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5263                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5264         }
5265
5266         entry = ldap_first_entry(priv2ld(ldap_state), result);
5267         if (!entry) {
5268                 return NT_STATUS_UNSUCCESSFUL;
5269         }
5270
5271         /* it is just a posix account, retrieve the dn for later use */
5272         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5273         if (!dn) {
5274                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5275                 return NT_STATUS_NO_MEMORY;
5276         }
5277
5278         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5279         if (rc != LDAP_SUCCESS) {
5280                 return NT_STATUS_UNSUCCESSFUL;
5281         }
5282
5283         flush_pwnam_cache();
5284
5285         return NT_STATUS_OK;
5286 }
5287
5288 /*
5289  * ldapsam_create_group creates a new
5290  * posixGroup and sambaGroupMapping object
5291  * in the ldap groups subtree
5292  *
5293  * The gid is allocated by winbindd.
5294  */
5295
5296 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5297                                          TALLOC_CTX *tmp_ctx,
5298                                          const char *name,
5299                                          uint32 *rid)
5300 {
5301         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5302         NTSTATUS ret;
5303         LDAPMessage *entry = NULL;
5304         LDAPMessage *result = NULL;
5305         uint32 num_result;
5306         bool is_new_entry = False;
5307         LDAPMod **mods = NULL;
5308         char *filter;
5309         char *groupsidstr;
5310         char *groupname;
5311         char *grouptype;
5312         char *gidstr;
5313         const char *dn = NULL;
5314         DOM_SID group_sid;
5315         gid_t gid = -1;
5316         int rc;
5317
5318         groupname = escape_ldap_string_alloc(name);
5319         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5320                                  groupname, LDAP_OBJ_POSIXGROUP);
5321         SAFE_FREE(groupname);
5322
5323         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5324         if (rc != LDAP_SUCCESS) {
5325                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5326                 return NT_STATUS_UNSUCCESSFUL;
5327         }
5328         talloc_autofree_ldapmsg(tmp_ctx, result);
5329
5330         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5331
5332         if (num_result > 1) {
5333                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5334                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5335         }
5336
5337         if (num_result == 1) {
5338                 char *tmp;
5339                 /* check if it is just a posix group.
5340                  * or if there is a sid attached to this entry
5341                  */
5342
5343                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5344                 if (!entry) {
5345                         return NT_STATUS_UNSUCCESSFUL;
5346                 }
5347
5348                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5349                 if (tmp) {
5350                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5351                         return NT_STATUS_GROUP_EXISTS;
5352                 }
5353
5354                 /* it is just a posix group, retrieve the gid and the dn for later use */
5355                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5356                 if (!tmp) {
5357                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5358                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5359                 }
5360
5361                 gid = strtoul(tmp, NULL, 10);
5362
5363                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5364                 if (!dn) {
5365                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5366                         return NT_STATUS_NO_MEMORY;
5367                 }
5368         }
5369
5370         if (num_result == 0) {
5371                 char *escape_name;
5372
5373                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5374
5375                 is_new_entry = True;
5376
5377                 /* lets allocate a new groupid for this group */
5378                 if (!winbind_allocate_gid(&gid)) {
5379                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5380                         return NT_STATUS_UNSUCCESSFUL;
5381                 }
5382
5383                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5384
5385                 escape_name = escape_rdn_val_string_alloc(name);
5386                 if (!escape_name) {
5387                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5388                         return NT_STATUS_NO_MEMORY;
5389                 }
5390
5391                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5392
5393                 SAFE_FREE(escape_name);
5394
5395                 if (!gidstr || !dn) {
5396                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5397                         return NT_STATUS_NO_MEMORY;
5398                 }
5399
5400                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5401                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5402                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5403         }
5404
5405         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5406                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5407                 return ret;
5408         }
5409
5410         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5411
5412         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5413                                                                &group_sid));
5414         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5415
5416         if (!groupsidstr || !grouptype) {
5417                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5418                 return NT_STATUS_NO_MEMORY;
5419         }
5420
5421         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5422         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5423         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5424         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5425         talloc_autofree_ldapmod(tmp_ctx, mods);
5426
5427         if (is_new_entry) {
5428                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5429 #if 0
5430                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5431                         /* This call may fail with rfc2307bis schema */
5432                         /* Retry adding a structural class */
5433                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5434                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5435                 }
5436 #endif
5437         } else {
5438                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5439         }
5440
5441         if (rc != LDAP_SUCCESS) {
5442                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5443                 return NT_STATUS_UNSUCCESSFUL;
5444         }
5445
5446         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5447
5448         return NT_STATUS_OK;
5449 }
5450
5451 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5452 {
5453         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5454         LDAPMessage *result = NULL;
5455         LDAPMessage *entry = NULL;
5456         int num_result;
5457         const char *dn;
5458         char *gidstr;
5459         char *filter;
5460         DOM_SID group_sid;
5461         int rc;
5462
5463         /* get the group sid */
5464         sid_compose(&group_sid, get_global_sam_sid(), rid);
5465
5466         filter = talloc_asprintf(tmp_ctx,
5467                                  "(&(sambaSID=%s)"
5468                                  "(objectClass=%s)"
5469                                  "(objectClass=%s))",
5470                                  sid_string_talloc(tmp_ctx, &group_sid),
5471                                  LDAP_OBJ_POSIXGROUP,
5472                                  LDAP_OBJ_GROUPMAP);
5473         if (filter == NULL) {
5474                 return NT_STATUS_NO_MEMORY;
5475         }
5476
5477         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5478         if (rc != LDAP_SUCCESS) {
5479                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5480                 return NT_STATUS_UNSUCCESSFUL;
5481         }
5482         talloc_autofree_ldapmsg(tmp_ctx, result);
5483
5484         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5485
5486         if (num_result == 0) {
5487                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5488                 return NT_STATUS_NO_SUCH_GROUP;
5489         }
5490
5491         if (num_result > 1) {
5492                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5493                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5494         }
5495
5496         entry = ldap_first_entry(priv2ld(ldap_state), result);
5497         if (!entry) {
5498                 return NT_STATUS_UNSUCCESSFUL;
5499         }
5500
5501         /* here it is, retrieve the dn for later use */
5502         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5503         if (!dn) {
5504                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5505                 return NT_STATUS_NO_MEMORY;
5506         }
5507
5508         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5509         if (!gidstr) {
5510                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5511                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5512         }
5513
5514         /* check no user have this group marked as primary group */
5515         filter = talloc_asprintf(tmp_ctx,
5516                                  "(&(gidNumber=%s)"
5517                                  "(objectClass=%s)"
5518                                  "(objectClass=%s))",
5519                                  gidstr,
5520                                  LDAP_OBJ_POSIXACCOUNT,
5521                                  LDAP_OBJ_SAMBASAMACCOUNT);
5522
5523         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5524         if (rc != LDAP_SUCCESS) {
5525                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5526                 return NT_STATUS_UNSUCCESSFUL;
5527         }
5528         talloc_autofree_ldapmsg(tmp_ctx, result);
5529
5530         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5531
5532         if (num_result != 0) {
5533                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5534                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5535         }
5536
5537         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5538         if (rc != LDAP_SUCCESS) {
5539                 return NT_STATUS_UNSUCCESSFUL;
5540         }
5541
5542         return NT_STATUS_OK;
5543 }
5544
5545 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5546                                         TALLOC_CTX *tmp_ctx,
5547                                         uint32 group_rid,
5548                                         uint32 member_rid,
5549                                         int modop)
5550 {
5551         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5552         LDAPMessage *entry = NULL;
5553         LDAPMessage *result = NULL;
5554         uint32 num_result;
5555         LDAPMod **mods = NULL;
5556         char *filter;
5557         char *uidstr;
5558         const char *dn = NULL;
5559         DOM_SID group_sid;
5560         DOM_SID member_sid;
5561         int rc;
5562
5563         switch (modop) {
5564         case LDAP_MOD_ADD:
5565                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5566                 break;
5567         case LDAP_MOD_DELETE:
5568                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5569                 break;
5570         default:
5571                 return NT_STATUS_UNSUCCESSFUL;
5572         }
5573
5574         /* get member sid  */
5575         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5576
5577         /* get the group sid */
5578         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5579
5580         filter = talloc_asprintf(tmp_ctx,
5581                                  "(&(sambaSID=%s)"
5582                                  "(objectClass=%s)"
5583                                  "(objectClass=%s))",
5584                                  sid_string_talloc(tmp_ctx, &member_sid),
5585                                  LDAP_OBJ_POSIXACCOUNT,
5586                                  LDAP_OBJ_SAMBASAMACCOUNT);
5587         if (filter == NULL) {
5588                 return NT_STATUS_NO_MEMORY;
5589         }
5590
5591         /* get the member uid */
5592         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5593         if (rc != LDAP_SUCCESS) {
5594                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5595                 return NT_STATUS_UNSUCCESSFUL;
5596         }
5597         talloc_autofree_ldapmsg(tmp_ctx, result);
5598
5599         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5600
5601         if (num_result == 0) {
5602                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5603                 return NT_STATUS_NO_SUCH_MEMBER;
5604         }
5605
5606         if (num_result > 1) {
5607                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5608                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5609         }
5610
5611         entry = ldap_first_entry(priv2ld(ldap_state), result);
5612         if (!entry) {
5613                 return NT_STATUS_UNSUCCESSFUL;
5614         }
5615
5616         if (modop == LDAP_MOD_DELETE) {
5617                 /* check if we are trying to remove the member from his primary group */
5618                 char *gidstr;
5619                 gid_t user_gid, group_gid;
5620
5621                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5622                 if (!gidstr) {
5623                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5624                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5625                 }
5626
5627                 user_gid = strtoul(gidstr, NULL, 10);
5628
5629                 if (!sid_to_gid(&group_sid, &group_gid)) {
5630                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5631                         return NT_STATUS_UNSUCCESSFUL;
5632                 }
5633
5634                 if (user_gid == group_gid) {
5635                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5636                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5637                 }
5638         }
5639
5640         /* here it is, retrieve the uid for later use */
5641         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5642         if (!uidstr) {
5643                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5644                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5645         }
5646
5647         filter = talloc_asprintf(tmp_ctx,
5648                                  "(&(sambaSID=%s)"
5649                                  "(objectClass=%s)"
5650                                  "(objectClass=%s))",
5651                                  sid_string_talloc(tmp_ctx, &group_sid),
5652                                  LDAP_OBJ_POSIXGROUP,
5653                                  LDAP_OBJ_GROUPMAP);
5654
5655         /* get the group */
5656         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5657         if (rc != LDAP_SUCCESS) {
5658                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5659                 return NT_STATUS_UNSUCCESSFUL;
5660         }
5661         talloc_autofree_ldapmsg(tmp_ctx, result);
5662
5663         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5664
5665         if (num_result == 0) {
5666                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5667                 return NT_STATUS_NO_SUCH_GROUP;
5668         }
5669
5670         if (num_result > 1) {
5671                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5672                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5673         }
5674
5675         entry = ldap_first_entry(priv2ld(ldap_state), result);
5676         if (!entry) {
5677                 return NT_STATUS_UNSUCCESSFUL;
5678         }
5679
5680         /* here it is, retrieve the dn for later use */
5681         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5682         if (!dn) {
5683                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5684                 return NT_STATUS_NO_MEMORY;
5685         }
5686
5687         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5688
5689         talloc_autofree_ldapmod(tmp_ctx, mods);
5690
5691         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5692         if (rc != LDAP_SUCCESS) {
5693                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5694                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5695                         return NT_STATUS_MEMBER_IN_GROUP;
5696                 }
5697                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5698                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5699                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5700                 }
5701                 return NT_STATUS_UNSUCCESSFUL;
5702         }
5703
5704         return NT_STATUS_OK;
5705 }
5706
5707 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5708                                      TALLOC_CTX *tmp_ctx,
5709                                      uint32 group_rid,
5710                                      uint32 member_rid)
5711 {
5712         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5713 }
5714 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5715                                      TALLOC_CTX *tmp_ctx,
5716                                      uint32 group_rid,
5717                                      uint32 member_rid)
5718 {
5719         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5720 }
5721
5722 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5723                                           TALLOC_CTX *mem_ctx,
5724                                           struct samu *sampass)
5725 {
5726         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5727         LDAPMessage *entry = NULL;
5728         LDAPMessage *result = NULL;
5729         uint32 num_result;
5730         LDAPMod **mods = NULL;
5731         char *filter;
5732         char *escape_username;
5733         char *gidstr;
5734         const char *dn = NULL;
5735         gid_t gid;
5736         int rc;
5737
5738         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5739
5740         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5741                 DEBUG(0,("ldapsam_set_primary_group: failed to retieve gid from user's group SID!\n"));
5742                 return NT_STATUS_UNSUCCESSFUL;
5743         }
5744         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5745         if (!gidstr) {
5746                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5747                 return NT_STATUS_NO_MEMORY;
5748         }
5749
5750         escape_username = escape_ldap_string_alloc(pdb_get_username(sampass));
5751         if (escape_username== NULL) {
5752                 return NT_STATUS_NO_MEMORY;
5753         }
5754
5755         filter = talloc_asprintf(mem_ctx,
5756                                  "(&(uid=%s)"
5757                                  "(objectClass=%s)"
5758                                  "(objectClass=%s))",
5759                                  escape_username,
5760                                  LDAP_OBJ_POSIXACCOUNT,
5761                                  LDAP_OBJ_SAMBASAMACCOUNT);
5762
5763         SAFE_FREE(escape_username);
5764
5765         if (filter == NULL) {
5766                 return NT_STATUS_NO_MEMORY;
5767         }
5768
5769         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5770         if (rc != LDAP_SUCCESS) {
5771                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5772                 return NT_STATUS_UNSUCCESSFUL;
5773         }
5774         talloc_autofree_ldapmsg(mem_ctx, result);
5775
5776         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5777
5778         if (num_result == 0) {
5779                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5780                 return NT_STATUS_NO_SUCH_USER;
5781         }
5782
5783         if (num_result > 1) {
5784                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5785                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5786         }
5787
5788         entry = ldap_first_entry(priv2ld(ldap_state), result);
5789         if (!entry) {
5790                 return NT_STATUS_UNSUCCESSFUL;
5791         }
5792
5793         /* retrieve the dn for later use */
5794         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5795         if (!dn) {
5796                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5797                 return NT_STATUS_NO_MEMORY;
5798         }
5799
5800         /* remove the old one, and add the new one, this way we do not risk races */
5801         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5802
5803         if (mods == NULL) {
5804                 return NT_STATUS_OK;
5805         }
5806
5807         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5808
5809         if (rc != LDAP_SUCCESS) {
5810                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5811                          pdb_get_username(sampass), gidstr));
5812                 return NT_STATUS_UNSUCCESSFUL;
5813         }
5814
5815         flush_pwnam_cache();
5816
5817         return NT_STATUS_OK;
5818 }
5819
5820
5821 /**********************************************************************
5822  trusted domains functions
5823  *********************************************************************/
5824
5825 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
5826                            const char *domain)
5827 {
5828         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
5829                                ldap_state->domain_dn);
5830 }
5831
5832 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
5833                                   const char *domain, LDAPMessage **entry)
5834 {
5835         int rc;
5836         char *filter;
5837         int scope = LDAP_SCOPE_SUBTREE;
5838         const char **attrs = NULL; /* NULL: get all attrs */
5839         int attrsonly = 0; /* 0: return values too */
5840         LDAPMessage *result = NULL;
5841         char *trusted_dn;
5842         uint32 num_result;
5843
5844         filter = talloc_asprintf(talloc_tos(),
5845                                  "(&(objectClass=%s)(sambaDomainName=%s))",
5846                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
5847
5848         trusted_dn = trusteddom_dn(ldap_state, domain);
5849         if (trusted_dn == NULL) {
5850                 return False;
5851         }
5852         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
5853                             filter, attrs, attrsonly, &result);
5854
5855         if (rc == LDAP_NO_SUCH_OBJECT) {
5856                 *entry = NULL;
5857                 return True;
5858         }
5859
5860         if (rc != LDAP_SUCCESS) {
5861                 return False;
5862         }
5863
5864         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5865
5866         if (num_result > 1) {
5867                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
5868                           "sambaTrustedDomainPassword object for domain '%s'"
5869                           "?!\n", domain));
5870                 return False;
5871         }
5872
5873         if (num_result == 0) {
5874                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
5875                           "sambaTrustedDomainPassword object for domain %s.\n",
5876                           domain));
5877                 *entry = NULL;
5878         } else {
5879                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
5880         }
5881
5882         return True;
5883 }
5884
5885 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
5886                                       const char *domain,
5887                                       char** pwd,
5888                                       DOM_SID *sid,
5889                                       time_t *pass_last_set_time)
5890 {
5891         struct ldapsam_privates *ldap_state =
5892                 (struct ldapsam_privates *)methods->private_data;
5893         LDAPMessage *entry = NULL;
5894
5895         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
5896
5897         if (!get_trusteddom_pw_int(ldap_state, domain, &entry) ||
5898             (entry == NULL))
5899         {
5900                 return False;
5901         }
5902
5903         /* password */
5904         if (pwd != NULL) {
5905                 char *pwd_str;
5906                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5907                                 entry, "sambaClearTextPassword", talloc_tos());
5908                 if (pwd_str == NULL) {
5909                         return False;
5910                 }
5911                 /* trusteddom_pw routines do not use talloc yet... */
5912                 *pwd = SMB_STRDUP(pwd_str);
5913                 if (*pwd == NULL) {
5914                         return False;
5915                 }
5916         }
5917
5918         /* last change time */
5919         if (pass_last_set_time != NULL) {
5920                 char *time_str;
5921                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5922                                 entry, "sambaPwdLastSet", talloc_tos());
5923                 if (time_str == NULL) {
5924                         return False;
5925                 }
5926                 *pass_last_set_time = (time_t)atol(time_str);
5927         }
5928
5929         /* domain sid */
5930         if (sid != NULL) {
5931                 char *sid_str;
5932                 DOM_SID *dom_sid;
5933                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5934                                                           entry, "sambaSID",
5935                                                           talloc_tos());
5936                 if (sid_str == NULL) {
5937                         return False;
5938                 }
5939                 dom_sid = string_sid_talloc(talloc_tos(), sid_str);
5940                 if (dom_sid == NULL) {
5941                         return False;
5942                 }
5943                 sid_copy(sid, dom_sid);
5944         }
5945
5946         return True;
5947 }
5948
5949 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
5950                                       const char* domain,
5951                                       const char* pwd,
5952                                       const DOM_SID *sid)
5953 {
5954         struct ldapsam_privates *ldap_state =
5955                 (struct ldapsam_privates *)methods->private_data;
5956         LDAPMessage *entry = NULL;
5957         LDAPMod **mods = NULL;
5958         char *prev_pwd = NULL;
5959         char *trusted_dn = NULL;
5960         int rc;
5961
5962         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
5963
5964         /*
5965          * get the current entry (if there is one) in order to put the
5966          * current password into the previous password attribute
5967          */
5968         if (!get_trusteddom_pw_int(ldap_state, domain, &entry)) {
5969                 return False;
5970         }
5971
5972         mods = NULL;
5973         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
5974                          "sambaTrustedDomainPassword");
5975         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
5976                          domain);
5977         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
5978                          sid_string_tos(sid));
5979         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
5980                          talloc_asprintf(talloc_tos(), "%li", time(NULL)));
5981         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5982                          "sambaClearTextPassword", pwd);
5983         if (entry != NULL) {
5984                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5985                                 entry, "sambaClearTextPassword", talloc_tos());
5986                 if (prev_pwd != NULL) {
5987                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5988                                          "sambaPreviousClearTextPassword",
5989                                          prev_pwd);
5990                 }
5991         }
5992
5993         trusted_dn = trusteddom_dn(ldap_state, domain);
5994         if (trusted_dn == NULL) {
5995                 return False;
5996         }
5997         if (entry == NULL) {
5998                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
5999         } else {
6000                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
6001         }
6002
6003         if (rc != LDAP_SUCCESS) {
6004                 DEBUG(1, ("error writing trusted domain password!\n"));
6005                 return False;
6006         }
6007
6008         return True;
6009 }
6010
6011 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
6012                                       const char *domain)
6013 {
6014         int rc;
6015         struct ldapsam_privates *ldap_state =
6016                 (struct ldapsam_privates *)methods->private_data;
6017         LDAPMessage *entry = NULL;
6018         const char *trusted_dn;
6019
6020         if (!get_trusteddom_pw_int(ldap_state, domain, &entry)) {
6021                 return False;
6022         }
6023
6024         if (entry == NULL) {
6025                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
6026                           "%s\n", domain));
6027                 return True;
6028         }
6029
6030         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
6031                                        entry);
6032         if (trusted_dn == NULL) {
6033                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
6034                 return False;
6035         }
6036
6037         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
6038         if (rc != LDAP_SUCCESS) {
6039                 return False;
6040         }
6041
6042         return True;
6043 }
6044
6045 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
6046                                          TALLOC_CTX *mem_ctx,
6047                                          uint32 *num_domains,
6048                                          struct trustdom_info ***domains)
6049 {
6050         int rc;
6051         struct ldapsam_privates *ldap_state =
6052                 (struct ldapsam_privates *)methods->private_data;
6053         char *filter;
6054         int scope = LDAP_SCOPE_SUBTREE;
6055         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
6056         int attrsonly = 0; /* 0: return values too */
6057         LDAPMessage *result = NULL;
6058         LDAPMessage *entry = NULL;
6059
6060         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
6061                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
6062
6063         rc = smbldap_search(ldap_state->smbldap_state,
6064                             ldap_state->domain_dn,
6065                             scope,
6066                             filter,
6067                             attrs,
6068                             attrsonly,
6069                             &result);
6070
6071         if (rc != LDAP_SUCCESS) {
6072                 return NT_STATUS_UNSUCCESSFUL;
6073         }
6074
6075         *num_domains = 0;
6076         if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) {
6077                 DEBUG(1, ("talloc failed\n"));
6078                 return NT_STATUS_NO_MEMORY;
6079         }
6080
6081         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6082              entry != NULL;
6083              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6084         {
6085                 char *dom_name, *dom_sid_str;
6086                 struct trustdom_info *dom_info;
6087
6088                 dom_info = TALLOC_P(*domains, struct trustdom_info);
6089                 if (dom_info == NULL) {
6090                         DEBUG(1, ("talloc failed\n"));
6091                         return NT_STATUS_NO_MEMORY;
6092                 }
6093
6094                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6095                                                            entry,
6096                                                            "sambaDomainName",
6097                                                            talloc_tos());
6098                 if (dom_name == NULL) {
6099                         DEBUG(1, ("talloc failed\n"));
6100                         return NT_STATUS_NO_MEMORY;
6101                 }
6102                 dom_info->name = dom_name;
6103
6104                 dom_sid_str = smbldap_talloc_single_attribute(
6105                                         priv2ld(ldap_state), entry, "sambaSID",
6106                                         talloc_tos());
6107                 if (dom_sid_str == NULL) {
6108                         DEBUG(1, ("talloc failed\n"));
6109                         return NT_STATUS_NO_MEMORY;
6110                 }
6111                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6112                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6113                                   dom_sid_str));
6114                         return NT_STATUS_UNSUCCESSFUL;
6115                 }
6116
6117                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6118                              domains, num_domains);
6119
6120                 if (*domains == NULL) {
6121                         DEBUG(1, ("talloc failed\n"));
6122                         return NT_STATUS_NO_MEMORY;
6123                 }
6124         }
6125
6126         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6127         return NT_STATUS_OK;
6128 }
6129
6130
6131 /**********************************************************************
6132  Housekeeping
6133  *********************************************************************/
6134
6135 static void free_private_data(void **vp)
6136 {
6137         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6138
6139         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6140
6141         if ((*ldap_state)->result != NULL) {
6142                 ldap_msgfree((*ldap_state)->result);
6143                 (*ldap_state)->result = NULL;
6144         }
6145         if ((*ldap_state)->domain_dn != NULL) {
6146                 SAFE_FREE((*ldap_state)->domain_dn);
6147         }
6148
6149         *ldap_state = NULL;
6150
6151         /* No need to free any further, as it is talloc()ed */
6152 }
6153
6154 /*********************************************************************
6155  Intitalise the parts of the pdb_methods structure that are common to
6156  all pdb_ldap modes
6157 *********************************************************************/
6158
6159 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6160 {
6161         NTSTATUS nt_status;
6162         struct ldapsam_privates *ldap_state;
6163
6164         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6165                 return nt_status;
6166         }
6167
6168         (*pdb_method)->name = "ldapsam";
6169
6170         (*pdb_method)->setsampwent = ldapsam_setsampwent;
6171         (*pdb_method)->endsampwent = ldapsam_endsampwent;
6172         (*pdb_method)->getsampwent = ldapsam_getsampwent;
6173         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6174         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6175         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6176         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6177         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6178         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6179
6180         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6181         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6182         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6183         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6184         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6185         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6186         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6187
6188         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6189         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6190
6191         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6192
6193         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
6194         (*pdb_method)->new_rid = ldapsam_new_rid;
6195
6196         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6197         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6198         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6199         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6200
6201         /* TODO: Setup private data and free */
6202
6203         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
6204                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6205                 return NT_STATUS_NO_MEMORY;
6206         }
6207
6208         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6209                                  location, &ldap_state->smbldap_state);
6210
6211         if ( !NT_STATUS_IS_OK(nt_status) ) {
6212                 return nt_status;
6213         }
6214
6215         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6216                 return NT_STATUS_NO_MEMORY;
6217         }
6218
6219         (*pdb_method)->private_data = ldap_state;
6220
6221         (*pdb_method)->free_private_data = free_private_data;
6222
6223         return NT_STATUS_OK;
6224 }
6225
6226 /**********************************************************************
6227  Initialise the 'compat' mode for pdb_ldap
6228  *********************************************************************/
6229
6230 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6231 {
6232         NTSTATUS nt_status;
6233         struct ldapsam_privates *ldap_state;
6234         char *uri = talloc_strdup( NULL, location );
6235
6236         trim_char( uri, '\"', '\"' );
6237         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6238         if ( uri )
6239                 TALLOC_FREE( uri );
6240
6241         if ( !NT_STATUS_IS_OK(nt_status) ) {
6242                 return nt_status;
6243         }
6244
6245         (*pdb_method)->name = "ldapsam_compat";
6246
6247         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6248         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6249
6250         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6251
6252         return NT_STATUS_OK;
6253 }
6254
6255 /**********************************************************************
6256  Initialise the normal mode for pdb_ldap
6257  *********************************************************************/
6258
6259 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6260 {
6261         NTSTATUS nt_status;
6262         struct ldapsam_privates *ldap_state = NULL;
6263         uint32 alg_rid_base;
6264         char *alg_rid_base_string = NULL;
6265         LDAPMessage *result = NULL;
6266         LDAPMessage *entry = NULL;
6267         DOM_SID ldap_domain_sid;
6268         DOM_SID secrets_domain_sid;
6269         char *domain_sid_string = NULL;
6270         char *dn = NULL;
6271         char *uri = talloc_strdup( NULL, location );
6272
6273         trim_char( uri, '\"', '\"' );
6274         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6275         if (uri) {
6276                 TALLOC_FREE(uri);
6277         }
6278
6279         if (!NT_STATUS_IS_OK(nt_status)) {
6280                 return nt_status;
6281         }
6282
6283         (*pdb_method)->name = "ldapsam";
6284
6285         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6286         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6287         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6288         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6289         (*pdb_method)->search_users = ldapsam_search_users;
6290         (*pdb_method)->search_groups = ldapsam_search_groups;
6291         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6292
6293         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6294                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6295                 (*pdb_method)->enum_group_memberships =
6296                         ldapsam_enum_group_memberships;
6297                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6298                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6299
6300                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6301                         (*pdb_method)->create_user = ldapsam_create_user;
6302                         (*pdb_method)->delete_user = ldapsam_delete_user;
6303                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6304                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6305                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6306                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6307                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6308                 }
6309         }
6310
6311         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6312         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6313
6314         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6315
6316         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6317                                                &result,
6318                                                ldap_state->domain_name, True);
6319
6320         if ( !NT_STATUS_IS_OK(nt_status) ) {
6321                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6322                           "info, nor add one to the domain\n"));
6323                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6324                              "will be unable to allocate new users/groups, "
6325                              "and will risk BDCs having inconsistant SIDs\n"));
6326                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6327                 return NT_STATUS_OK;
6328         }
6329
6330         /* Given that the above might fail, everything below this must be
6331          * optional */
6332
6333         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6334                                  result);
6335         if (!entry) {
6336                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6337                           "entry\n"));
6338                 ldap_msgfree(result);
6339                 return NT_STATUS_UNSUCCESSFUL;
6340         }
6341
6342         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
6343         if (!dn) {
6344                 ldap_msgfree(result);
6345                 return NT_STATUS_UNSUCCESSFUL;
6346         }
6347
6348         ldap_state->domain_dn = smb_xstrdup(dn);
6349         ldap_memfree(dn);
6350
6351         domain_sid_string = smbldap_talloc_single_attribute(
6352                     ldap_state->smbldap_state->ldap_struct,
6353                     entry,
6354                     get_userattr_key2string(ldap_state->schema_ver,
6355                                             LDAP_ATTR_USER_SID),
6356                     NULL);
6357
6358         if (domain_sid_string) {
6359                 bool found_sid;
6360                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6361                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6362                                   "read as a valid SID\n", domain_sid_string));
6363                         ldap_msgfree(result);
6364                         TALLOC_FREE(domain_sid_string);
6365                         return NT_STATUS_INVALID_PARAMETER;
6366                 }
6367                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6368                                                      &secrets_domain_sid);
6369                 if (!found_sid || !sid_equal(&secrets_domain_sid,
6370                                              &ldap_domain_sid)) {
6371                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6372                                   "%s based on pdb_ldap results %s -> %s\n",
6373                                   ldap_state->domain_name,
6374                                   sid_string_dbg(&secrets_domain_sid),
6375                                   sid_string_dbg(&ldap_domain_sid)));
6376
6377                         /* reset secrets.tdb sid */
6378                         secrets_store_domain_sid(ldap_state->domain_name,
6379                                                  &ldap_domain_sid);
6380                         DEBUG(1, ("New global sam SID: %s\n",
6381                                   sid_string_dbg(get_global_sam_sid())));
6382                 }
6383                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6384                 TALLOC_FREE(domain_sid_string);
6385         }
6386
6387         alg_rid_base_string = smbldap_talloc_single_attribute(
6388                     ldap_state->smbldap_state->ldap_struct,
6389                     entry,
6390                     get_attr_key2string( dominfo_attr_list,
6391                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6392                     NULL);
6393         if (alg_rid_base_string) {
6394                 alg_rid_base = (uint32)atol(alg_rid_base_string);
6395                 if (alg_rid_base != algorithmic_rid_base()) {
6396                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6397                                   "changed since the LDAP\n"
6398                                   "database was initialised.  Aborting. \n"));
6399                         ldap_msgfree(result);
6400                         TALLOC_FREE(alg_rid_base_string);
6401                         return NT_STATUS_UNSUCCESSFUL;
6402                 }
6403                 TALLOC_FREE(alg_rid_base_string);
6404         }
6405         ldap_msgfree(result);
6406
6407         return NT_STATUS_OK;
6408 }
6409
6410 NTSTATUS pdb_ldap_init(void)
6411 {
6412         NTSTATUS nt_status;
6413         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6414                 return nt_status;
6415
6416         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6417                 return nt_status;
6418
6419         /* Let pdb_nds register backends */
6420         pdb_nds_init();
6421
6422         return NT_STATUS_OK;
6423 }