source3/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                 SAFE_FREE(escape_user);
 353                 return LDAP_NO_MEMORY;
 354         }
 355         /*
 356          * have to use this here because $ is filtered out
 357          * in string_sub
 358          */
 359
 360         filter = talloc_all_string_sub(talloc_tos(),
 361                                 filter, "%u", escape_user);
 362         SAFE_FREE(escape_user);
 363         if (!filter) {
 364                 return LDAP_NO_MEMORY;
 365         }
 366
 367         ret = smbldap_search_suffix(ldap_state->smbldap_state,
 368                         filter, attr, result);
 369         TALLOC_FREE(filter);
 370         return ret;
 371 }
 372
 373 /*******************************************************************
 374  Run the search by rid.
 375 ******************************************************************/
 376
 377 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 378                                          uint32 rid, LDAPMessage ** result,
 379                                          const char **attr)
 380 {
 381         char *filter = NULL;
 382         int rc;
 383
 384         filter = talloc_asprintf(talloc_tos(), "(&(rid=%i)%s)", rid,
 385                 get_objclass_filter(ldap_state->schema_ver));
 386         if (!filter) {
 387                 return LDAP_NO_MEMORY;
 388         }
 389
 390         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 391                         filter, attr, result);
 392         TALLOC_FREE(filter);
 393         return rc;
 394 }
 395
 396 /*******************************************************************
 397  Run the search by SID.
 398 ******************************************************************/
 399
 400 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 401                                  const DOM_SID *sid, LDAPMessage ** result,
 402                                  const char **attr)
 403 {
 404         char *filter = NULL;
 405         int rc;
 406         fstring sid_string;
 407
 408         filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
 409                 get_userattr_key2string(ldap_state->schema_ver,
 410                         LDAP_ATTR_USER_SID),
 411                 sid_to_fstring(sid_string, sid),
 412                 get_objclass_filter(ldap_state->schema_ver));
 413         if (!filter) {
 414                 return LDAP_NO_MEMORY;
 415         }
 416
 417         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 418                         filter, attr, result);
 419
 420         TALLOC_FREE(filter);
 421         return rc;
 422 }
 423
 424 /*******************************************************************
 425  Delete complete object or objectclass and attrs from
 426  object found in search_result depending on lp_ldap_delete_dn
 427 ******************************************************************/
 428
 429 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 430                                 TALLOC_CTX *mem_ctx,
 431                                 LDAPMessage *entry,
 432                                 const char *objectclass,
 433                                 const char **attrs)
 434 {
 435         LDAPMod **mods = NULL;
 436         char *name;
 437         const char *dn;
 438         BerElement *ptr = NULL;
 439
 440         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 441         if (dn == NULL) {
 442                 return LDAP_NO_MEMORY;
 443         }
 444
 445         if (lp_ldap_delete_dn()) {
 446                 return smbldap_delete(priv->smbldap_state, dn);
 447         }
 448
 449         /* Ok, delete only the SAM attributes */
 450
 451         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 452              name != NULL;
 453              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 454                 const char **attrib;
 455
 456                 /* We are only allowed to delete the attributes that
 457                    really exist. */
 458
 459                 for (attrib = attrs; *attrib != NULL; attrib++) {
 460                         if (strequal(*attrib, name)) {
 461                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 462                                            "attribute %s\n", name));
 463                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 464                                                 NULL);
 465                         }
 466                 }
 467                 ldap_memfree(name);
 468         }
 469
 470         if (ptr != NULL) {
 471                 ber_free(ptr, 0);
 472         }
 473
 474         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 475         talloc_autofree_ldapmod(mem_ctx, mods);
 476
 477         return smbldap_modify(priv->smbldap_state, dn, mods);
 478 }
 479
 480 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 481 {
 482         char *temp;
 483         struct tm tm;
 484
 485         temp = smbldap_talloc_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 486                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 487                         talloc_tos());
 488         if (!temp) {
 489                 return (time_t) 0;
 490         }
 491
 492         if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
 493                 DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
 494                         (char*)temp));
 495                 TALLOC_FREE(temp);
 496                 return (time_t) 0;
 497         }
 498         TALLOC_FREE(temp);
 499         tzset();
 500         return timegm(&tm);
 501 }
 502
 503 /**********************************************************************
 504  Initialize struct samu from an LDAP query.
 505  (Based on init_sam_from_buffer in pdb_tdb.c)
 506 *********************************************************************/
 507
 508 static bool init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 509                                 struct samu * sampass,
 510                                 LDAPMessage * entry)
 511 {
 512         time_t  logon_time,
 513                         logoff_time,
 514                         kickoff_time,
 515                         pass_last_set_time,
 516                         pass_can_change_time,
 517                         pass_must_change_time,
 518                         ldap_entry_time,
 519                         bad_password_time;
 520         char *username = NULL,
 521                         *domain = NULL,
 522                         *nt_username = NULL,
 523                         *fullname = NULL,
 524                         *homedir = NULL,
 525                         *dir_drive = NULL,
 526                         *logon_script = NULL,
 527                         *profile_path = NULL,
 528                         *acct_desc = NULL,
 529                         *workstations = NULL,
 530                         *munged_dial = NULL;
 531         uint32          user_rid;
 532         uint8           smblmpwd[LM_HASH_LEN],
 533                         smbntpwd[NT_HASH_LEN];
 534         bool            use_samba_attrs = True;
 535         uint32          acct_ctrl = 0;
 536         uint16          logon_divs;
 537         uint16          bad_password_count = 0,
 538                         logon_count = 0;
 539         uint32 hours_len;
 540         uint8           hours[MAX_HOURS_LEN];
 541         char *temp = NULL;
 542         LOGIN_CACHE     *cache_entry = NULL;
 543         uint32          pwHistLen;
 544         bool expand_explicit = lp_passdb_expand_explicit();
 545         bool ret = false;
 546         TALLOC_CTX *ctx = talloc_init("init_sam_from_ldap");
 547
 548         if (!ctx) {
 549                 return false;
 550         }
 551         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 552                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 553                 goto fn_exit;
 554         }
 555
 556         if (priv2ld(ldap_state) == NULL) {
 557                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 558                           "ldap_struct is NULL!\n"));
 559                 goto fn_exit;
 560         }
 561
 562         if (!(username = smbldap_talloc_single_attribute(priv2ld(ldap_state),
 563                                         entry,
 564                                         "uid",
 565                                         ctx))) {
 566                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 567                           "this user!\n"));
 568                 goto fn_exit;
 569         }
 570
 571         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 572
 573         nt_username = talloc_strdup(ctx, username);
 574         if (!nt_username) {
 575                 goto fn_exit;
 576         }
 577
 578         domain = talloc_strdup(ctx, ldap_state->domain_name);
 579         if (!domain) {
 580                 goto fn_exit;
 581         }
 582
 583         pdb_set_username(sampass, username, PDB_SET);
 584
 585         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 586         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 587
 588         /* deal with different attributes between the schema first */
 589
 590         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 591                 if ((temp = smbldap_talloc_single_attribute(
 592                                 ldap_state->smbldap_state->ldap_struct,
 593                                 entry,
 594                                 get_userattr_key2string(ldap_state->schema_ver,
 595                                         LDAP_ATTR_USER_SID),
 596                                 ctx))!=NULL) {
 597                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 598                 }
 599         } else {
 600                 if ((temp = smbldap_talloc_single_attribute(
 601                                 ldap_state->smbldap_state->ldap_struct,
 602                                 entry,
 603                                 get_userattr_key2string(ldap_state->schema_ver,
 604                                         LDAP_ATTR_USER_RID),
 605                                 ctx))!=NULL) {
 606                         user_rid = (uint32)atol(temp);
 607                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 608                 }
 609         }
 610
 611         if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
 612                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 613                         get_userattr_key2string(ldap_state->schema_ver,
 614                                 LDAP_ATTR_USER_SID),
 615                         get_userattr_key2string(ldap_state->schema_ver,
 616                                 LDAP_ATTR_USER_RID),
 617                         username));
 618                 return False;
 619         }
 620
 621         temp = smbldap_talloc_single_attribute(
 622                         ldap_state->smbldap_state->ldap_struct,
 623                         entry,
 624                         get_userattr_key2string(ldap_state->schema_ver,
 625                                 LDAP_ATTR_PWD_LAST_SET),
 626                         ctx);
 627         if (temp) {
 628                 pass_last_set_time = (time_t) atol(temp);
 629                 pdb_set_pass_last_set_time(sampass,
 630                                 pass_last_set_time, PDB_SET);
 631         }
 632
 633         temp = smbldap_talloc_single_attribute(
 634                         ldap_state->smbldap_state->ldap_struct,
 635                         entry,
 636                         get_userattr_key2string(ldap_state->schema_ver,
 637                                 LDAP_ATTR_LOGON_TIME),
 638                         ctx);
 639         if (temp) {
 640                 logon_time = (time_t) atol(temp);
 641                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 642         }
 643
 644         temp = smbldap_talloc_single_attribute(
 645                         ldap_state->smbldap_state->ldap_struct,
 646                         entry,
 647                         get_userattr_key2string(ldap_state->schema_ver,
 648                                 LDAP_ATTR_LOGOFF_TIME),
 649                         ctx);
 650         if (temp) {
 651                 logoff_time = (time_t) atol(temp);
 652                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 653         }
 654
 655         temp = smbldap_talloc_single_attribute(
 656                         ldap_state->smbldap_state->ldap_struct,
 657                         entry,
 658                         get_userattr_key2string(ldap_state->schema_ver,
 659                                 LDAP_ATTR_KICKOFF_TIME),
 660                         ctx);
 661         if (temp) {
 662                 kickoff_time = (time_t) atol(temp);
 663                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 664         }
 665
 666         temp = smbldap_talloc_single_attribute(
 667                         ldap_state->smbldap_state->ldap_struct,
 668                         entry,
 669                         get_userattr_key2string(ldap_state->schema_ver,
 670                                 LDAP_ATTR_PWD_CAN_CHANGE),
 671                         ctx);
 672         if (temp) {
 673                 pass_can_change_time = (time_t) atol(temp);
 674                 pdb_set_pass_can_change_time(sampass,
 675                                 pass_can_change_time, PDB_SET);
 676         }
 677
 678         temp = smbldap_talloc_single_attribute(
 679                         ldap_state->smbldap_state->ldap_struct,
 680                         entry,
 681                         get_userattr_key2string(ldap_state->schema_ver,
 682                                 LDAP_ATTR_PWD_MUST_CHANGE),
 683                         ctx);
 684         if (temp) {
 685                 pass_must_change_time = (time_t) atol(temp);
 686                 pdb_set_pass_must_change_time(sampass,
 687                                 pass_must_change_time, PDB_SET);
 688         }
 689
 690         /* recommend that 'gecos' and 'displayName' should refer to the same
 691          * attribute OID.  userFullName depreciated, only used by Samba
 692          * primary rules of LDAP: don't make a new attribute when one is already defined
 693          * that fits your needs; using cn then displayName rather than 'userFullName'
 694          */
 695
 696         fullname = smbldap_talloc_single_attribute(
 697                         ldap_state->smbldap_state->ldap_struct,
 698                         entry,
 699                         get_userattr_key2string(ldap_state->schema_ver,
 700                                 LDAP_ATTR_DISPLAY_NAME),
 701                         ctx);
 702         if (fullname) {
 703                 pdb_set_fullname(sampass, fullname, PDB_SET);
 704         } else {
 705                 fullname = smbldap_talloc_single_attribute(
 706                                 ldap_state->smbldap_state->ldap_struct,
 707                                 entry,
 708                                 get_userattr_key2string(ldap_state->schema_ver,
 709                                         LDAP_ATTR_CN),
 710                                 ctx);
 711                 if (fullname) {
 712                         pdb_set_fullname(sampass, fullname, PDB_SET);
 713                 }
 714         }
 715
 716         dir_drive = smbldap_talloc_single_attribute(
 717                         ldap_state->smbldap_state->ldap_struct,
 718                         entry,
 719                         get_userattr_key2string(ldap_state->schema_ver,
 720                                 LDAP_ATTR_HOME_DRIVE),
 721                         ctx);
 722         if (dir_drive) {
 723                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 724         } else {
 725                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 726         }
 727
 728         homedir = smbldap_talloc_single_attribute(
 729                         ldap_state->smbldap_state->ldap_struct,
 730                         entry,
 731                         get_userattr_key2string(ldap_state->schema_ver,
 732                                 LDAP_ATTR_HOME_PATH),
 733                         ctx);
 734         if (homedir) {
 735                 if (expand_explicit) {
 736                         homedir = talloc_sub_basic(ctx,
 737                                                 username,
 738                                                 domain,
 739                                                 homedir);
 740                         if (!homedir) {
 741                                 goto fn_exit;
 742                         }
 743                 }
 744                 pdb_set_homedir(sampass, homedir, PDB_SET);
 745         } else {
 746                 pdb_set_homedir(sampass,
 747                         talloc_sub_basic(ctx, username, domain,
 748                                          lp_logon_home()),
 749                         PDB_DEFAULT);
 750         }
 751
 752         logon_script = smbldap_talloc_single_attribute(
 753                         ldap_state->smbldap_state->ldap_struct,
 754                         entry,
 755                         get_userattr_key2string(ldap_state->schema_ver,
 756                                 LDAP_ATTR_LOGON_SCRIPT),
 757                         ctx);
 758         if (logon_script) {
 759                 if (expand_explicit) {
 760                         logon_script = talloc_sub_basic(ctx,
 761                                                 username,
 762                                                 domain,
 763                                                 logon_script);
 764                         if (!logon_script) {
 765                                 goto fn_exit;
 766                         }
 767                 }
 768                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
 769         } else {
 770                 pdb_set_logon_script(sampass,
 771                         talloc_sub_basic(ctx, username, domain,
 772                                          lp_logon_script()),
 773                         PDB_DEFAULT );
 774         }
 775
 776         profile_path = smbldap_talloc_single_attribute(
 777                         ldap_state->smbldap_state->ldap_struct,
 778                         entry,
 779                         get_userattr_key2string(ldap_state->schema_ver,
 780                                 LDAP_ATTR_PROFILE_PATH),
 781                         ctx);
 782         if (profile_path) {
 783                 if (expand_explicit) {
 784                         profile_path = talloc_sub_basic(ctx,
 785                                                 username,
 786                                                 domain,
 787                                                 profile_path);
 788                         if (!profile_path) {
 789                                 goto fn_exit;
 790                         }
 791                 }
 792                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
 793         } else {
 794                 pdb_set_profile_path(sampass,
 795                         talloc_sub_basic(ctx, username, domain,
 796                                           lp_logon_path()),
 797                         PDB_DEFAULT );
 798         }
 799
 800         acct_desc = smbldap_talloc_single_attribute(
 801                         ldap_state->smbldap_state->ldap_struct,
 802                         entry,
 803                         get_userattr_key2string(ldap_state->schema_ver,
 804                                 LDAP_ATTR_DESC),
 805                         ctx);
 806         if (acct_desc) {
 807                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 808         }
 809
 810         workstations = smbldap_talloc_single_attribute(
 811                         ldap_state->smbldap_state->ldap_struct,
 812                         entry,
 813                         get_userattr_key2string(ldap_state->schema_ver,
 814                                 LDAP_ATTR_USER_WKS),
 815                         ctx);
 816         if (workstations) {
 817                 pdb_set_workstations(sampass, workstations, PDB_SET);
 818         }
 819
 820         munged_dial = smbldap_talloc_single_attribute(
 821                         ldap_state->smbldap_state->ldap_struct,
 822                         entry,
 823                         get_userattr_key2string(ldap_state->schema_ver,
 824                                 LDAP_ATTR_MUNGED_DIAL),
 825                         ctx);
 826         if (munged_dial) {
 827                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 828         }
 829
 830         /* FIXME: hours stuff should be cleaner */
 831
 832         logon_divs = 168;
 833         hours_len = 21;
 834         memset(hours, 0xff, hours_len);
 835
 836         if (ldap_state->is_nds_ldap) {
 837                 char *user_dn;
 838                 size_t pwd_len;
 839                 char clear_text_pw[512];
 840
 841                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 842                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 843                 user_dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
 844                 if (user_dn != NULL) {
 845                         DEBUG(3, ("init_sam_from_ldap: smbldap_get_dn(%s) returned '%s'\n", username, user_dn));
 846
 847                         pwd_len = sizeof(clear_text_pw);
 848                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 849                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 850                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 851                                         SAFE_FREE(user_dn);
 852                                         return False;
 853                                 }
 854                                 ZERO_STRUCT(smblmpwd);
 855                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 856                                         SAFE_FREE(user_dn);
 857                                         return False;
 858                                 }
 859                                 ZERO_STRUCT(smbntpwd);
 860                                 use_samba_attrs = False;
 861                         }
 862
 863                         SAFE_FREE(user_dn);
 864
 865                 } else {
 866                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 867                 }
 868         }
 869
 870         if (use_samba_attrs) {
 871                 temp = smbldap_talloc_single_attribute(
 872                                 ldap_state->smbldap_state->ldap_struct,
 873                                 entry,
 874                                 get_userattr_key2string(ldap_state->schema_ver,
 875                                         LDAP_ATTR_LMPW),
 876                                 ctx);
 877                 if (temp) {
 878                         pdb_gethexpwd(temp, smblmpwd);
 879                         memset((char *)temp, '\0', strlen(temp)+1);
 880                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 881                                 goto fn_exit;
 882                         }
 883                         ZERO_STRUCT(smblmpwd);
 884                 }
 885
 886                 temp = smbldap_talloc_single_attribute(
 887                                 ldap_state->smbldap_state->ldap_struct,
 888                                 entry,
 889                                 get_userattr_key2string(ldap_state->schema_ver,
 890                                         LDAP_ATTR_NTPW),
 891                                 ctx);
 892                 if (temp) {
 893                         pdb_gethexpwd(temp, smbntpwd);
 894                         memset((char *)temp, '\0', strlen(temp)+1);
 895                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 896                                 goto fn_exit;
 897                         }
 898                         ZERO_STRUCT(smbntpwd);
 899                 }
 900         }
 901
 902         pwHistLen = 0;
 903
 904         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
 905         if (pwHistLen > 0){
 906                 uint8 *pwhist = NULL;
 907                 int i;
 908                 char *history_string = TALLOC_ARRAY(ctx, char,
 909                                                 MAX_PW_HISTORY_LEN*64);
 910
 911                 if (!history_string) {
 912                         goto fn_exit;
 913                 }
 914
 915                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 916
 917                 if ((pwhist = TALLOC_ARRAY(ctx, uint8,
 918                                         pwHistLen * PW_HISTORY_ENTRY_LEN)) ==
 919                                 NULL){
 920                         DEBUG(0, ("init_sam_from_ldap: talloc failed!\n"));
 921                         goto fn_exit;
 922                 }
 923                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 924
 925                 if (smbldap_get_single_attribute(
 926                                 ldap_state->smbldap_state->ldap_struct,
 927                                 entry,
 928                                 get_userattr_key2string(ldap_state->schema_ver,
 929                                         LDAP_ATTR_PWD_HISTORY),
 930                                 history_string,
 931                                 MAX_PW_HISTORY_LEN*64)) {
 932                         bool hex_failed = false;
 933                         for (i = 0; i < pwHistLen; i++){
 934                                 /* Get the 16 byte salt. */
 935                                 if (!pdb_gethexpwd(&history_string[i*64],
 936                                         &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 937                                         hex_failed = true;
 938                                         break;
 939                                 }
 940                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 941                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 942                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+
 943                                                 PW_HISTORY_SALT_LEN])) {
 944                                         hex_failed = True;
 945                                         break;
 946                                 }
 947                         }
 948                         if (hex_failed) {
 949                                 DEBUG(2,("init_sam_from_ldap: Failed to get password history for user %s\n",
 950                                         username));
 951                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 952                         }
 953                 }
 954                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 955                         goto fn_exit;
 956                 }
 957         }
 958
 959         temp = smbldap_talloc_single_attribute(
 960                         ldap_state->smbldap_state->ldap_struct,
 961                         entry,
 962                         get_userattr_key2string(ldap_state->schema_ver,
 963                                 LDAP_ATTR_ACB_INFO),
 964                         ctx);
 965         if (temp) {
 966                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 967
 968                 if (acct_ctrl == 0) {
 969                         acct_ctrl |= ACB_NORMAL;
 970                 }
 971
 972                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 973         } else {
 974                 acct_ctrl |= ACB_NORMAL;
 975         }
 976
 977         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 978         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 979
 980         temp = smbldap_talloc_single_attribute(
 981                         ldap_state->smbldap_state->ldap_struct,
 982                         entry,
 983                         get_userattr_key2string(ldap_state->schema_ver,
 984                                 LDAP_ATTR_BAD_PASSWORD_COUNT),
 985                         ctx);
 986         if (temp) {
 987                 bad_password_count = (uint32) atol(temp);
 988                 pdb_set_bad_password_count(sampass,
 989                                 bad_password_count, PDB_SET);
 990         }
 991
 992         temp = smbldap_talloc_single_attribute(
 993                         ldap_state->smbldap_state->ldap_struct,
 994                         entry,
 995                         get_userattr_key2string(ldap_state->schema_ver,
 996                                 LDAP_ATTR_BAD_PASSWORD_TIME),
 997                         ctx);
 998         if (temp) {
 999                 bad_password_time = (time_t) atol(temp);
1000                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1001         }
1002
1003
1004         temp = smbldap_talloc_single_attribute(
1005                         ldap_state->smbldap_state->ldap_struct,
1006                         entry,
1007                         get_userattr_key2string(ldap_state->schema_ver,
1008                                 LDAP_ATTR_LOGON_COUNT),
1009                         ctx);
1010         if (temp) {
1011                 logon_count = (uint32) atol(temp);
1012                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1013         }
1014
1015         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
1016
1017         temp = smbldap_talloc_single_attribute(
1018                         ldap_state->smbldap_state->ldap_struct,
1019                         entry,
1020                         get_userattr_key2string(ldap_state->schema_ver,
1021                                 LDAP_ATTR_LOGON_HOURS),
1022                         ctx);
1023         if (temp) {
1024                 pdb_gethexhours(temp, hours);
1025                 memset((char *)temp, '\0', strlen(temp) +1);
1026                 pdb_set_hours(sampass, hours, PDB_SET);
1027                 ZERO_STRUCT(hours);
1028         }
1029
1030         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
1031                 temp = smbldap_talloc_single_attribute(
1032                                 priv2ld(ldap_state),
1033                                 entry,
1034                                 "uidNumber",
1035                                 ctx);
1036                 if (temp) {
1037                         /* We've got a uid, feed the cache */
1038                         uid_t uid = strtoul(temp, NULL, 10);
1039                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
1040                 }
1041         }
1042
1043         /* check the timestamp of the cache vs ldap entry */
1044         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
1045                                                             entry))) {
1046                 ret = true;
1047                 goto fn_exit;
1048         }
1049
1050         /* see if we have newer updates */
1051         if (!(cache_entry = login_cache_read(sampass))) {
1052                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
1053                            (unsigned int)pdb_get_bad_password_count(sampass),
1054                            (unsigned int)pdb_get_bad_password_time(sampass)));
1055                 ret = true;
1056                 goto fn_exit;
1057         }
1058
1059         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
1060                   (unsigned int)ldap_entry_time,
1061                   (unsigned int)cache_entry->entry_timestamp,
1062                   (unsigned int)cache_entry->bad_password_time));
1063
1064         if (ldap_entry_time > cache_entry->entry_timestamp) {
1065                 /* cache is older than directory , so
1066                    we need to delete the entry but allow the
1067                    fields to be written out */
1068                 login_cache_delentry(sampass);
1069         } else {
1070                 /* read cache in */
1071                 pdb_set_acct_ctrl(sampass,
1072                                   pdb_get_acct_ctrl(sampass) |
1073                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
1074                                   PDB_SET);
1075                 pdb_set_bad_password_count(sampass,
1076                                            cache_entry->bad_password_count,
1077                                            PDB_SET);
1078                 pdb_set_bad_password_time(sampass,
1079                                           cache_entry->bad_password_time,
1080                                           PDB_SET);
1081         }
1082
1083         ret = true;
1084
1085   fn_exit:
1086
1087         TALLOC_FREE(ctx);
1088         SAFE_FREE(cache_entry);
1089         return ret;
1090 }
1091
1092 /**********************************************************************
1093  Initialize the ldap db from a struct samu. Called on update.
1094  (Based on init_buffer_from_sam in pdb_tdb.c)
1095 *********************************************************************/
1096
1097 static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
1098                                 LDAPMessage *existing,
1099                                 LDAPMod *** mods, struct samu * sampass,
1100                                 bool (*need_update)(const struct samu *,
1101                                                     enum pdb_elements))
1102 {
1103         char *temp = NULL;
1104         uint32 rid;
1105
1106         if (mods == NULL || sampass == NULL) {
1107                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
1108                 return False;
1109         }
1110
1111         *mods = NULL;
1112
1113         /*
1114          * took out adding "objectclass: sambaAccount"
1115          * do this on a per-mod basis
1116          */
1117         if (need_update(sampass, PDB_USERNAME)) {
1118                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1119                               "uid", pdb_get_username(sampass));
1120                 if (ldap_state->is_nds_ldap) {
1121                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1122                                       "cn", pdb_get_username(sampass));
1123                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1124                                       "sn", pdb_get_username(sampass));
1125                 }
1126         }
1127
1128         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
1129
1130         /* only update the RID if we actually need to */
1131         if (need_update(sampass, PDB_USERSID)) {
1132                 fstring sid_string;
1133                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
1134
1135                 switch ( ldap_state->schema_ver ) {
1136                         case SCHEMAVER_SAMBAACCOUNT:
1137                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
1138                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1139                                                   sid_string_dbg(user_sid),
1140                                                   sid_string_dbg(
1141                                                           &ldap_state->domain_sid)));
1142                                         return False;
1143                                 }
1144                                 if (asprintf(&temp, "%i", rid) < 0) {
1145                                         return false;
1146                                 }
1147                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1148                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
1149                                         temp);
1150                                 SAFE_FREE(temp);
1151                                 break;
1152
1153                         case SCHEMAVER_SAMBASAMACCOUNT:
1154                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1155                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1156                                         sid_to_fstring(sid_string, user_sid));
1157                                 break;
1158
1159                         default:
1160                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1161                                 break;
1162                 }
1163         }
1164
1165         /* we don't need to store the primary group RID - so leaving it
1166            'free' to hang off the unix primary group makes life easier */
1167
1168         if (need_update(sampass, PDB_GROUPSID)) {
1169                 fstring sid_string;
1170                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1171
1172                 switch ( ldap_state->schema_ver ) {
1173                         case SCHEMAVER_SAMBAACCOUNT:
1174                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1175                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1176                                                   sid_string_dbg(group_sid),
1177                                                   sid_string_dbg(
1178                                                           &ldap_state->domain_sid)));
1179                                         return False;
1180                                 }
1181
1182                                 if (asprintf(&temp, "%i", rid) < 0) {
1183                                         return false;
1184                                 }
1185                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1186                                         get_userattr_key2string(ldap_state->schema_ver,
1187                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1188                                 SAFE_FREE(temp);
1189                                 break;
1190
1191                         case SCHEMAVER_SAMBASAMACCOUNT:
1192                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1193                                         get_userattr_key2string(ldap_state->schema_ver,
1194                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_fstring(sid_string, group_sid));
1195                                 break;
1196
1197                         default:
1198                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1199                                 break;
1200                 }
1201
1202         }
1203
1204         /* displayName, cn, and gecos should all be the same
1205          *  most easily accomplished by giving them the same OID
1206          *  gecos isn't set here b/c it should be handled by the
1207          *  add-user script
1208          *  We change displayName only and fall back to cn if
1209          *  it does not exist.
1210          */
1211
1212         if (need_update(sampass, PDB_FULLNAME))
1213                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1214                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1215                         pdb_get_fullname(sampass));
1216
1217         if (need_update(sampass, PDB_ACCTDESC))
1218                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1219                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1220                         pdb_get_acct_desc(sampass));
1221
1222         if (need_update(sampass, PDB_WORKSTATIONS))
1223                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1224                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1225                         pdb_get_workstations(sampass));
1226
1227         if (need_update(sampass, PDB_MUNGEDDIAL))
1228                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1229                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1230                         pdb_get_munged_dial(sampass));
1231
1232         if (need_update(sampass, PDB_SMBHOME))
1233                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1234                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1235                         pdb_get_homedir(sampass));
1236
1237         if (need_update(sampass, PDB_DRIVE))
1238                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1239                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1240                         pdb_get_dir_drive(sampass));
1241
1242         if (need_update(sampass, PDB_LOGONSCRIPT))
1243                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1244                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1245                         pdb_get_logon_script(sampass));
1246
1247         if (need_update(sampass, PDB_PROFILE))
1248                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1249                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1250                         pdb_get_profile_path(sampass));
1251
1252         if (asprintf(&temp, "%li", pdb_get_logon_time(sampass)) < 0) {
1253                 return false;
1254         }
1255         if (need_update(sampass, PDB_LOGONTIME))
1256                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1257                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1258         SAFE_FREE(temp);
1259
1260         if (asprintf(&temp, "%li", pdb_get_logoff_time(sampass)) < 0) {
1261                 return false;
1262         }
1263         if (need_update(sampass, PDB_LOGOFFTIME))
1264                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1265                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1266         SAFE_FREE(temp);
1267
1268         if (asprintf(&temp, "%li", pdb_get_kickoff_time(sampass)) < 0) {
1269                 return false;
1270         }
1271         if (need_update(sampass, PDB_KICKOFFTIME))
1272                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1273                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1274         SAFE_FREE(temp);
1275
1276         if (asprintf(&temp, "%li", pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
1277                 return false;
1278         }
1279         if (need_update(sampass, PDB_CANCHANGETIME))
1280                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1281                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1282         SAFE_FREE(temp);
1283
1284         if (asprintf(&temp, "%li", pdb_get_pass_must_change_time(sampass)) < 0) {
1285                 return false;
1286         }
1287         if (need_update(sampass, PDB_MUSTCHANGETIME))
1288                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1289                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1290         SAFE_FREE(temp);
1291
1292         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1293                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1294
1295                 if (need_update(sampass, PDB_LMPASSWD)) {
1296                         const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
1297                         if (lm_pw) {
1298                                 char pwstr[34];
1299                                 pdb_sethexpwd(pwstr, lm_pw,
1300                                               pdb_get_acct_ctrl(sampass));
1301                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1302                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1303                                                  pwstr);
1304                         } else {
1305                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1306                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1307                                                  NULL);
1308                         }
1309                 }
1310                 if (need_update(sampass, PDB_NTPASSWD)) {
1311                         const uchar *nt_pw = pdb_get_nt_passwd(sampass);
1312                         if (nt_pw) {
1313                                 char pwstr[34];
1314                                 pdb_sethexpwd(pwstr, nt_pw,
1315                                               pdb_get_acct_ctrl(sampass));
1316                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1317                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1318                                                  pwstr);
1319                         } else {
1320                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1321                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1322                                                  NULL);
1323                         }
1324                 }
1325
1326                 if (need_update(sampass, PDB_PWHISTORY)) {
1327                         char *pwstr = NULL;
1328                         uint32 pwHistLen = 0;
1329                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1330
1331                         pwstr = SMB_MALLOC_ARRAY(char, 1024);
1332                         if (!pwstr) {
1333                                 return false;
1334                         }
1335                         if (pwHistLen == 0) {
1336                                 /* Remove any password history from the LDAP store. */
1337                                 memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1338                                 pwstr[64] = '\0';
1339                         } else {
1340                                 int i;
1341                                 uint32 currHistLen = 0;
1342                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1343                                 if (pwhist != NULL) {
1344                                         /* We can only store (1024-1/64 password history entries. */
1345                                         pwHistLen = MIN(pwHistLen, ((1024-1)/64));
1346                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1347                                                 /* Store the salt. */
1348                                                 pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1349                                                 /* Followed by the md5 hash of salt + md4 hash */
1350                                                 pdb_sethexpwd(&pwstr[(i*64)+32],
1351                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1352                                                 DEBUG(100, ("pwstr=%s\n", pwstr));
1353                                         }
1354                                 }
1355                         }
1356                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1357                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1358                                          pwstr);
1359                         SAFE_FREE(pwstr);
1360                 }
1361
1362                 if (need_update(sampass, PDB_PASSLASTSET)) {
1363                         if (asprintf(&temp, "%li",
1364                                 pdb_get_pass_last_set_time(sampass)) < 0) {
1365                                 return false;
1366                         }
1367                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1368                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1369                                 temp);
1370                         SAFE_FREE(temp);
1371                 }
1372         }
1373
1374         if (need_update(sampass, PDB_HOURS)) {
1375                 const uint8 *hours = pdb_get_hours(sampass);
1376                 if (hours) {
1377                         char hourstr[44];
1378                         pdb_sethexhours(hourstr, hours);
1379                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1380                                 existing,
1381                                 mods,
1382                                 get_userattr_key2string(ldap_state->schema_ver,
1383                                                 LDAP_ATTR_LOGON_HOURS),
1384                                 hourstr);
1385                 }
1386         }
1387
1388         if (need_update(sampass, PDB_ACCTCTRL))
1389                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1390                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1391                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1392
1393         /* password lockout cache:
1394            - If we are now autolocking or clearing, we write to ldap
1395            - If we are clearing, we delete the cache entry
1396            - If the count is > 0, we update the cache
1397
1398            This even means when autolocking, we cache, just in case the
1399            update doesn't work, and we have to cache the autolock flag */
1400
1401         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1402             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1403                 uint16 badcount = pdb_get_bad_password_count(sampass);
1404                 time_t badtime = pdb_get_bad_password_time(sampass);
1405                 uint32 pol;
1406                 pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &pol);
1407
1408                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1409                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1410
1411                 if ((badcount >= pol) || (badcount == 0)) {
1412                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1413                                 (unsigned int)badcount, (unsigned int)badtime));
1414                         if (asprintf(&temp, "%li", (long)badcount) < 0) {
1415                                 return false;
1416                         }
1417                         smbldap_make_mod(
1418                                 ldap_state->smbldap_state->ldap_struct,
1419                                 existing, mods,
1420                                 get_userattr_key2string(
1421                                         ldap_state->schema_ver,
1422                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1423                                 temp);
1424                         SAFE_FREE(temp);
1425
1426                         if (asprintf(&temp, "%li", badtime) < 0) {
1427                                 return false;
1428                         }
1429                         smbldap_make_mod(
1430                                 ldap_state->smbldap_state->ldap_struct,
1431                                 existing, mods,
1432                                 get_userattr_key2string(
1433                                         ldap_state->schema_ver,
1434                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1435                                 temp);
1436                         SAFE_FREE(temp);
1437                 }
1438                 if (badcount == 0) {
1439                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1440                         login_cache_delentry(sampass);
1441                 } else {
1442                         LOGIN_CACHE cache_entry;
1443
1444                         cache_entry.entry_timestamp = time(NULL);
1445                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1446                         cache_entry.bad_password_count = badcount;
1447                         cache_entry.bad_password_time = badtime;
1448
1449                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1450                         login_cache_write(sampass, cache_entry);
1451                 }
1452         }
1453
1454         return True;
1455 }
1456
1457 /**********************************************************************
1458  End enumeration of the LDAP password list.
1459 *********************************************************************/
1460
1461 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1462 {
1463         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1464         if (ldap_state->result) {
1465                 ldap_msgfree(ldap_state->result);
1466                 ldap_state->result = NULL;
1467         }
1468 }
1469
1470 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1471                         const char *new_attr)
1472 {
1473         int i;
1474
1475         if (new_attr == NULL) {
1476                 return;
1477         }
1478
1479         for (i=0; (*attr_list)[i] != NULL; i++) {
1480                 ;
1481         }
1482
1483         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1484                                             const char *,  i+2);
1485         SMB_ASSERT((*attr_list) != NULL);
1486         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1487         (*attr_list)[i+1] = NULL;
1488 }
1489
1490 /**********************************************************************
1491 Get struct samu entry from LDAP by username.
1492 *********************************************************************/
1493
1494 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1495 {
1496         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1497         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1498         LDAPMessage *result = NULL;
1499         LDAPMessage *entry = NULL;
1500         int count;
1501         const char ** attr_list;
1502         int rc;
1503
1504         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1505         append_attr(user, &attr_list,
1506                     get_userattr_key2string(ldap_state->schema_ver,
1507                                             LDAP_ATTR_MOD_TIMESTAMP));
1508         append_attr(user, &attr_list, "uidNumber");
1509         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1510                                            attr_list);
1511         TALLOC_FREE( attr_list );
1512
1513         if ( rc != LDAP_SUCCESS )
1514                 return NT_STATUS_NO_SUCH_USER;
1515
1516         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1517
1518         if (count < 1) {
1519                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1520                 ldap_msgfree(result);
1521                 return NT_STATUS_NO_SUCH_USER;
1522         } else if (count > 1) {
1523                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1524                 ldap_msgfree(result);
1525                 return NT_STATUS_NO_SUCH_USER;
1526         }
1527
1528         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1529         if (entry) {
1530                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1531                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1532                         ldap_msgfree(result);
1533                         return NT_STATUS_NO_SUCH_USER;
1534                 }
1535                 pdb_set_backend_private_data(user, result, NULL,
1536                                              my_methods, PDB_CHANGED);
1537                 talloc_autofree_ldapmsg(user, result);
1538                 ret = NT_STATUS_OK;
1539         } else {
1540                 ldap_msgfree(result);
1541         }
1542         return ret;
1543 }
1544
1545 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1546                                    const DOM_SID *sid, LDAPMessage **result)
1547 {
1548         int rc = -1;
1549         const char ** attr_list;
1550         uint32 rid;
1551
1552         switch ( ldap_state->schema_ver ) {
1553                 case SCHEMAVER_SAMBASAMACCOUNT: {
1554                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1555                         if (tmp_ctx == NULL) {
1556                                 return LDAP_NO_MEMORY;
1557                         }
1558
1559                         attr_list = get_userattr_list(tmp_ctx,
1560                                                       ldap_state->schema_ver);
1561                         append_attr(tmp_ctx, &attr_list,
1562                                     get_userattr_key2string(
1563                                             ldap_state->schema_ver,
1564                                             LDAP_ATTR_MOD_TIMESTAMP));
1565                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1566                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1567                                                           result, attr_list);
1568                         TALLOC_FREE(tmp_ctx);
1569
1570                         if ( rc != LDAP_SUCCESS )
1571                                 return rc;
1572                         break;
1573                 }
1574
1575                 case SCHEMAVER_SAMBAACCOUNT:
1576                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1577                                 return rc;
1578                         }
1579
1580                         attr_list = get_userattr_list(NULL,
1581                                                       ldap_state->schema_ver);
1582                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1583                         TALLOC_FREE( attr_list );
1584
1585                         if ( rc != LDAP_SUCCESS )
1586                                 return rc;
1587                         break;
1588         }
1589         return rc;
1590 }
1591
1592 /**********************************************************************
1593  Get struct samu entry from LDAP by SID.
1594 *********************************************************************/
1595
1596 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1597 {
1598         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1599         LDAPMessage *result = NULL;
1600         LDAPMessage *entry = NULL;
1601         int count;
1602         int rc;
1603
1604         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1605                                           sid, &result);
1606         if (rc != LDAP_SUCCESS)
1607                 return NT_STATUS_NO_SUCH_USER;
1608
1609         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1610
1611         if (count < 1) {
1612                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
1613                           "count=%d\n", sid_string_dbg(sid), count));
1614                 ldap_msgfree(result);
1615                 return NT_STATUS_NO_SUCH_USER;
1616         }  else if (count > 1) {
1617                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
1618                           "[%s]. Failing. count=%d\n", sid_string_dbg(sid),
1619                           count));
1620                 ldap_msgfree(result);
1621                 return NT_STATUS_NO_SUCH_USER;
1622         }
1623
1624         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1625         if (!entry) {
1626                 ldap_msgfree(result);
1627                 return NT_STATUS_NO_SUCH_USER;
1628         }
1629
1630         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1631                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1632                 ldap_msgfree(result);
1633                 return NT_STATUS_NO_SUCH_USER;
1634         }
1635
1636         pdb_set_backend_private_data(user, result, NULL,
1637                                      my_methods, PDB_CHANGED);
1638         talloc_autofree_ldapmsg(user, result);
1639         return NT_STATUS_OK;
1640 }
1641
1642 /********************************************************************
1643  Do the actual modification - also change a plaintext passord if
1644  it it set.
1645 **********************************************************************/
1646
1647 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1648                                      struct samu *newpwd, char *dn,
1649                                      LDAPMod **mods, int ldap_op,
1650                                      bool (*need_update)(const struct samu *, enum pdb_elements))
1651 {
1652         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1653         int rc;
1654
1655         if (!newpwd || !dn) {
1656                 return NT_STATUS_INVALID_PARAMETER;
1657         }
1658
1659         if (!mods) {
1660                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1661                 /* may be password change below however */
1662         } else {
1663                 switch(ldap_op) {
1664                         case LDAP_MOD_ADD:
1665                                 if (ldap_state->is_nds_ldap) {
1666                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1667                                                         "objectclass",
1668                                                         "inetOrgPerson");
1669                                 } else {
1670                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1671                                                         "objectclass",
1672                                                         LDAP_OBJ_ACCOUNT);
1673                                 }
1674                                 rc = smbldap_add(ldap_state->smbldap_state,
1675                                                  dn, mods);
1676                                 break;
1677                         case LDAP_MOD_REPLACE:
1678                                 rc = smbldap_modify(ldap_state->smbldap_state,
1679                                                     dn ,mods);
1680                                 break;
1681                         default:
1682                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1683                                          ldap_op));
1684                                 return NT_STATUS_INVALID_PARAMETER;
1685                 }
1686
1687                 if (rc!=LDAP_SUCCESS) {
1688                         return NT_STATUS_UNSUCCESSFUL;
1689                 }
1690         }
1691
1692         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1693                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1694                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1695                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1696                 BerElement *ber;
1697                 struct berval *bv;
1698                 char *retoid = NULL;
1699                 struct berval *retdata = NULL;
1700                 char *utf8_password;
1701                 char *utf8_dn;
1702                 size_t converted_size;
1703
1704                 if (!ldap_state->is_nds_ldap) {
1705
1706                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1707                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1708                                 DEBUG(2, ("ldap password change requested, but LDAP "
1709                                           "server does not support it -- ignoring\n"));
1710                                 return NT_STATUS_OK;
1711                         }
1712                 }
1713
1714                 if (!push_utf8_allocate(&utf8_password,
1715                                         pdb_get_plaintext_passwd(newpwd),
1716                                         &converted_size))
1717                 {
1718                         return NT_STATUS_NO_MEMORY;
1719                 }
1720
1721                 if (!push_utf8_allocate(&utf8_dn, dn, &converted_size)) {
1722                         SAFE_FREE(utf8_password);
1723                         return NT_STATUS_NO_MEMORY;
1724                 }
1725
1726                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1727                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1728                         SAFE_FREE(utf8_password);
1729                         SAFE_FREE(utf8_dn);
1730                         return NT_STATUS_UNSUCCESSFUL;
1731                 }
1732
1733                 if ((ber_printf (ber, "{") < 0) ||
1734                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn) < 0) ||
1735                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password) < 0) ||
1736                     (ber_printf (ber, "n}") < 0)) {
1737                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a value <0\n"));
1738                        ber_free(ber,1);
1739                        SAFE_FREE(utf8_dn);
1740                        SAFE_FREE(utf8_password);
1741                        return NT_STATUS_UNSUCCESSFUL;
1742                 }
1743
1744                 if ((rc = ber_flatten (ber, &bv))<0) {
1745                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1746                         ber_free(ber,1);
1747                         SAFE_FREE(utf8_dn);
1748                         SAFE_FREE(utf8_password);
1749                         return NT_STATUS_UNSUCCESSFUL;
1750                 }
1751
1752                 SAFE_FREE(utf8_dn);
1753                 SAFE_FREE(utf8_password);
1754                 ber_free(ber, 1);
1755
1756                 if (!ldap_state->is_nds_ldap) {
1757                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1758                                                         LDAP_EXOP_MODIFY_PASSWD,
1759                                                         bv, NULL, NULL, &retoid,
1760                                                         &retdata);
1761                 } else {
1762                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1763                                                         pdb_get_plaintext_passwd(newpwd));
1764                 }
1765                 if (rc != LDAP_SUCCESS) {
1766                         char *ld_error = NULL;
1767
1768                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1769                                 DEBUG(3, ("Could not set userPassword "
1770                                           "attribute due to an objectClass "
1771                                           "violation -- ignoring\n"));
1772                                 ber_bvfree(bv);
1773                                 return NT_STATUS_OK;
1774                         }
1775
1776                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1777                                         &ld_error);
1778                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1779                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1780                         SAFE_FREE(ld_error);
1781                         ber_bvfree(bv);
1782 #if defined(LDAP_CONSTRAINT_VIOLATION)
1783                         if (rc == LDAP_CONSTRAINT_VIOLATION)
1784                                 return NT_STATUS_PASSWORD_RESTRICTION;
1785 #endif
1786                         return NT_STATUS_UNSUCCESSFUL;
1787                 } else {
1788                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1789 #ifdef DEBUG_PASSWORD
1790                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1791 #endif
1792                         if (retdata)
1793                                 ber_bvfree(retdata);
1794                         if (retoid)
1795                                 ldap_memfree(retoid);
1796                 }
1797                 ber_bvfree(bv);
1798         }
1799         return NT_STATUS_OK;
1800 }
1801
1802 /**********************************************************************
1803  Delete entry from LDAP for username.
1804 *********************************************************************/
1805
1806 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1807                                            struct samu * sam_acct)
1808 {
1809         struct ldapsam_privates *priv =
1810                 (struct ldapsam_privates *)my_methods->private_data;
1811         const char *sname;
1812         int rc;
1813         LDAPMessage *msg, *entry;
1814         NTSTATUS result = NT_STATUS_NO_MEMORY;
1815         const char **attr_list;
1816         TALLOC_CTX *mem_ctx;
1817
1818         if (!sam_acct) {
1819                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1820                 return NT_STATUS_INVALID_PARAMETER;
1821         }
1822
1823         sname = pdb_get_username(sam_acct);
1824
1825         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1826                   "LDAP.\n", sname));
1827
1828         mem_ctx = talloc_new(NULL);
1829         if (mem_ctx == NULL) {
1830                 DEBUG(0, ("talloc_new failed\n"));
1831                 goto done;
1832         }
1833
1834         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1835         if (attr_list == NULL) {
1836                 goto done;
1837         }
1838
1839         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1840
1841         if ((rc != LDAP_SUCCESS) ||
1842             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1843             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1844                 DEBUG(5, ("Could not find user %s\n", sname));
1845                 result = NT_STATUS_NO_SUCH_USER;
1846                 goto done;
1847         }
1848
1849         rc = ldapsam_delete_entry(
1850                 priv, mem_ctx, entry,
1851                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1852                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1853                 attr_list);
1854
1855         result = (rc == LDAP_SUCCESS) ?
1856                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1857
1858  done:
1859         TALLOC_FREE(mem_ctx);
1860         return result;
1861 }
1862
1863 /**********************************************************************
1864  Helper function to determine for update_sam_account whether
1865  we need LDAP modification.
1866 *********************************************************************/
1867
1868 static bool element_is_changed(const struct samu *sampass,
1869                                enum pdb_elements element)
1870 {
1871         return IS_SAM_CHANGED(sampass, element);
1872 }
1873
1874 /**********************************************************************
1875  Update struct samu.
1876 *********************************************************************/
1877
1878 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1879 {
1880         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1881         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1882         int rc = 0;
1883         char *dn;
1884         LDAPMessage *result = NULL;
1885         LDAPMessage *entry = NULL;
1886         LDAPMod **mods = NULL;
1887         const char **attr_list;
1888
1889         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1890         if (!result) {
1891                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1892                 if (pdb_get_username(newpwd) == NULL) {
1893                         return NT_STATUS_INVALID_PARAMETER;
1894                 }
1895                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1896                 TALLOC_FREE( attr_list );
1897                 if (rc != LDAP_SUCCESS) {
1898                         return NT_STATUS_UNSUCCESSFUL;
1899                 }
1900                 pdb_set_backend_private_data(newpwd, result, NULL,
1901                                              my_methods, PDB_CHANGED);
1902                 talloc_autofree_ldapmsg(newpwd, result);
1903         }
1904
1905         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1906                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1907                 return NT_STATUS_UNSUCCESSFUL;
1908         }
1909
1910         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1911         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
1912         if (!dn) {
1913                 return NT_STATUS_UNSUCCESSFUL;
1914         }
1915
1916         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1917
1918         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
1919                                 element_is_changed)) {
1920                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
1921                 SAFE_FREE(dn);
1922                 if (mods != NULL)
1923                         ldap_mods_free(mods,True);
1924                 return NT_STATUS_UNSUCCESSFUL;
1925         }
1926
1927         if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
1928             && (mods == NULL)) {
1929                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
1930                          pdb_get_username(newpwd)));
1931                 SAFE_FREE(dn);
1932                 return NT_STATUS_OK;
1933         }
1934
1935         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
1936
1937         if (mods != NULL) {
1938                 ldap_mods_free(mods,True);
1939         }
1940
1941         SAFE_FREE(dn);
1942
1943         /*
1944          * We need to set the backend private data to NULL here. For example
1945          * setuserinfo level 25 does a pdb_update_sam_account twice on the
1946          * same one, and with the explicit delete / add logic for attribute
1947          * values the second time we would use the wrong "old" value which
1948          * does not exist in LDAP anymore. Thus the LDAP server would refuse
1949          * the update.
1950          * The existing LDAPMessage is still being auto-freed by the
1951          * destructor.
1952          */
1953         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
1954                                      PDB_CHANGED);
1955
1956         if (!NT_STATUS_IS_OK(ret)) {
1957                 return ret;
1958         }
1959
1960         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1961                   pdb_get_username(newpwd)));
1962         return NT_STATUS_OK;
1963 }
1964
1965 /***************************************************************************
1966  Renames a struct samu
1967  - The "rename user script" has full responsibility for changing everything
1968 ***************************************************************************/
1969
1970 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
1971                                            struct samu *old_acct,
1972                                            const char *newname)
1973 {
1974         const char *oldname;
1975         int rc;
1976         char *rename_script = NULL;
1977         fstring oldname_lower, newname_lower;
1978
1979         if (!old_acct) {
1980                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
1981                 return NT_STATUS_INVALID_PARAMETER;
1982         }
1983         if (!newname) {
1984                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
1985                 return NT_STATUS_INVALID_PARAMETER;
1986         }
1987
1988         oldname = pdb_get_username(old_acct);
1989
1990         /* rename the posix user */
1991         rename_script = SMB_STRDUP(lp_renameuser_script());
1992         if (rename_script == NULL) {
1993                 return NT_STATUS_NO_MEMORY;
1994         }
1995
1996         if (!(*rename_script)) {
1997                 SAFE_FREE(rename_script);
1998                 return NT_STATUS_ACCESS_DENIED;
1999         }
2000
2001         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
2002                    oldname, newname));
2003
2004         /* We have to allow the account name to end with a '$'.
2005            Also, follow the semantics in _samr_create_user() and lower case the
2006            posix name but preserve the case in passdb */
2007
2008         fstrcpy( oldname_lower, oldname );
2009         strlower_m( oldname_lower );
2010         fstrcpy( newname_lower, newname );
2011         strlower_m( newname_lower );
2012         rename_script = realloc_string_sub2(rename_script,
2013                                         "%unew",
2014                                         newname_lower,
2015                                         true,
2016                                         true);
2017         if (!rename_script) {
2018                 return NT_STATUS_NO_MEMORY;
2019         }
2020         rename_script = realloc_string_sub2(rename_script,
2021                                         "%uold",
2022                                         oldname_lower,
2023                                         true,
2024                                         true);
2025         rc = smbrun(rename_script, NULL);
2026
2027         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2028                           rename_script, rc));
2029
2030         SAFE_FREE(rename_script);
2031
2032         if (rc == 0) {
2033                 smb_nscd_flush_user_cache();
2034         }
2035
2036         if (rc)
2037                 return NT_STATUS_UNSUCCESSFUL;
2038
2039         return NT_STATUS_OK;
2040 }
2041
2042 /**********************************************************************
2043  Helper function to determine for update_sam_account whether
2044  we need LDAP modification.
2045  *********************************************************************/
2046
2047 static bool element_is_set_or_changed(const struct samu *sampass,
2048                                       enum pdb_elements element)
2049 {
2050         return (IS_SAM_SET(sampass, element) ||
2051                 IS_SAM_CHANGED(sampass, element));
2052 }
2053
2054 /**********************************************************************
2055  Add struct samu to LDAP.
2056 *********************************************************************/
2057
2058 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2059 {
2060         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2061         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2062         int rc;
2063         LDAPMessage     *result = NULL;
2064         LDAPMessage     *entry  = NULL;
2065         LDAPMod         **mods = NULL;
2066         int             ldap_op = LDAP_MOD_REPLACE;
2067         uint32          num_result;
2068         const char      **attr_list;
2069         char *escape_user = NULL;
2070         const char      *username = pdb_get_username(newpwd);
2071         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
2072         char *filter = NULL;
2073         char *dn = NULL;
2074         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2075         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2076
2077         if (!ctx) {
2078                 return NT_STATUS_NO_MEMORY;
2079         }
2080
2081         if (!username || !*username) {
2082                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2083                 status = NT_STATUS_INVALID_PARAMETER;
2084                 goto fn_exit;
2085         }
2086
2087         /* free this list after the second search or in case we exit on failure */
2088         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2089
2090         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2091
2092         if (rc != LDAP_SUCCESS) {
2093                 goto fn_exit;
2094         }
2095
2096         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2097                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2098                          username));
2099                 goto fn_exit;
2100         }
2101         ldap_msgfree(result);
2102         result = NULL;
2103
2104         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2105                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2106                                                   sid, &result);
2107                 if (rc == LDAP_SUCCESS) {
2108                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2109                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2110                                          "already in the base, with samba "
2111                                          "attributes\n", sid_string_dbg(sid)));
2112                                 goto fn_exit;
2113                         }
2114                         ldap_msgfree(result);
2115                         result = NULL;
2116                 }
2117         }
2118
2119         /* does the entry already exist but without a samba attributes?
2120            we need to return the samba attributes here */
2121
2122         escape_user = escape_ldap_string_alloc( username );
2123         filter = talloc_strdup(attr_list, "(uid=%u)");
2124         if (!filter) {
2125                 status = NT_STATUS_NO_MEMORY;
2126                 goto fn_exit;
2127         }
2128         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2129         if (!filter) {
2130                 status = NT_STATUS_NO_MEMORY;
2131                 goto fn_exit;
2132         }
2133         SAFE_FREE(escape_user);
2134
2135         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2136                                    filter, attr_list, &result);
2137         if ( rc != LDAP_SUCCESS ) {
2138                 goto fn_exit;
2139         }
2140
2141         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2142
2143         if (num_result > 1) {
2144                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2145                 goto fn_exit;
2146         }
2147
2148         /* Check if we need to update an existing entry */
2149         if (num_result == 1) {
2150                 char *tmp;
2151
2152                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2153                 ldap_op = LDAP_MOD_REPLACE;
2154                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2155                 tmp = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
2156                 if (!tmp) {
2157                         goto fn_exit;
2158                 }
2159                 dn = talloc_asprintf(ctx, "%s", tmp);
2160                 SAFE_FREE(tmp);
2161                 if (!dn) {
2162                         status = NT_STATUS_NO_MEMORY;
2163                         goto fn_exit;
2164                 }
2165
2166         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2167
2168                 /* There might be a SID for this account already - say an idmap entry */
2169
2170                 filter = talloc_asprintf(ctx,
2171                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2172                                  get_userattr_key2string(ldap_state->schema_ver,
2173                                          LDAP_ATTR_USER_SID),
2174                                  sid_string_talloc(ctx, sid),
2175                                  LDAP_OBJ_IDMAP_ENTRY,
2176                                  LDAP_OBJ_SID_ENTRY);
2177                 if (!filter) {
2178                         status = NT_STATUS_NO_MEMORY;
2179                         goto fn_exit;
2180                 }
2181
2182                 /* free old result before doing a new search */
2183                 if (result != NULL) {
2184                         ldap_msgfree(result);
2185                         result = NULL;
2186                 }
2187                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2188                                            filter, attr_list, &result);
2189
2190                 if ( rc != LDAP_SUCCESS ) {
2191                         goto fn_exit;
2192                 }
2193
2194                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2195
2196                 if (num_result > 1) {
2197                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2198                         goto fn_exit;
2199                 }
2200
2201                 /* Check if we need to update an existing entry */
2202                 if (num_result == 1) {
2203                         char *tmp;
2204
2205                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2206                         ldap_op = LDAP_MOD_REPLACE;
2207                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2208                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2209                         if (!tmp) {
2210                                 goto fn_exit;
2211                         }
2212                         dn = talloc_asprintf(ctx, "%s", tmp);
2213                         SAFE_FREE(tmp);
2214                         if (!dn) {
2215                                 status = NT_STATUS_NO_MEMORY;
2216                                 goto fn_exit;
2217                         }
2218                 }
2219         }
2220
2221         if (num_result == 0) {
2222                 char *escape_username;
2223                 /* Check if we need to add an entry */
2224                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2225                 ldap_op = LDAP_MOD_ADD;
2226
2227                 escape_username = escape_rdn_val_string_alloc(username);
2228                 if (!escape_username) {
2229                         status = NT_STATUS_NO_MEMORY;
2230                         goto fn_exit;
2231                 }
2232
2233                 if (username[strlen(username)-1] == '$') {
2234                         dn = talloc_asprintf(ctx,
2235                                         "uid=%s,%s",
2236                                         escape_username,
2237                                         lp_ldap_machine_suffix());
2238                 } else {
2239                         dn = talloc_asprintf(ctx,
2240                                         "uid=%s,%s",
2241                                         escape_username,
2242                                         lp_ldap_user_suffix());
2243                 }
2244
2245                 SAFE_FREE(escape_username);
2246                 if (!dn) {
2247                         status = NT_STATUS_NO_MEMORY;
2248                         goto fn_exit;
2249                 }
2250         }
2251
2252         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2253                                 element_is_set_or_changed)) {
2254                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2255                 if (mods != NULL) {
2256                         ldap_mods_free(mods, true);
2257                 }
2258                 goto fn_exit;
2259         }
2260
2261         if (mods == NULL) {
2262                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2263                 goto fn_exit;
2264         }
2265         switch ( ldap_state->schema_ver ) {
2266                 case SCHEMAVER_SAMBAACCOUNT:
2267                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2268                         break;
2269                 case SCHEMAVER_SAMBASAMACCOUNT:
2270                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2271                         break;
2272                 default:
2273                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2274                         break;
2275         }
2276
2277         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2278         if (!NT_STATUS_IS_OK(ret)) {
2279                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2280                          pdb_get_username(newpwd),dn));
2281                 ldap_mods_free(mods, true);
2282                 goto fn_exit;
2283         }
2284
2285         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2286         ldap_mods_free(mods, true);
2287
2288         status = NT_STATUS_OK;
2289
2290   fn_exit:
2291
2292         TALLOC_FREE(ctx);
2293         SAFE_FREE(escape_user);
2294         if (result) {
2295                 ldap_msgfree(result);
2296         }
2297         return status;
2298 }
2299
2300 /**********************************************************************
2301  *********************************************************************/
2302
2303 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2304                                      const char *filter,
2305                                      LDAPMessage ** result)
2306 {
2307         int scope = LDAP_SCOPE_SUBTREE;
2308         int rc;
2309         const char **attr_list;
2310
2311         attr_list = get_attr_list(NULL, groupmap_attr_list);
2312         rc = smbldap_search(ldap_state->smbldap_state,
2313                             lp_ldap_group_suffix (), scope,
2314                             filter, attr_list, 0, result);
2315         TALLOC_FREE(attr_list);
2316
2317         return rc;
2318 }
2319
2320 /**********************************************************************
2321  *********************************************************************/
2322
2323 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2324                                  GROUP_MAP *map, LDAPMessage *entry)
2325 {
2326         char *temp = NULL;
2327         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2328
2329         if (ldap_state == NULL || map == NULL || entry == NULL ||
2330                         ldap_state->smbldap_state->ldap_struct == NULL) {
2331                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2332                 TALLOC_FREE(ctx);
2333                 return false;
2334         }
2335
2336         temp = smbldap_talloc_single_attribute(
2337                         ldap_state->smbldap_state->ldap_struct,
2338                         entry,
2339                         get_attr_key2string(groupmap_attr_list,
2340                                 LDAP_ATTR_GIDNUMBER),
2341                         ctx);
2342         if (!temp) {
2343                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2344                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2345                 TALLOC_FREE(ctx);
2346                 return false;
2347         }
2348         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2349
2350         map->gid = (gid_t)atol(temp);
2351
2352         TALLOC_FREE(temp);
2353         temp = smbldap_talloc_single_attribute(
2354                         ldap_state->smbldap_state->ldap_struct,
2355                         entry,
2356                         get_attr_key2string(groupmap_attr_list,
2357                                 LDAP_ATTR_GROUP_SID),
2358                         ctx);
2359         if (!temp) {
2360                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2361                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2362                 TALLOC_FREE(ctx);
2363                 return false;
2364         }
2365
2366         if (!string_to_sid(&map->sid, temp)) {
2367                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2368                 TALLOC_FREE(ctx);
2369                 return false;
2370         }
2371
2372         TALLOC_FREE(temp);
2373         temp = smbldap_talloc_single_attribute(
2374                         ldap_state->smbldap_state->ldap_struct,
2375                         entry,
2376                         get_attr_key2string(groupmap_attr_list,
2377                                 LDAP_ATTR_GROUP_TYPE),
2378                         ctx);
2379         if (!temp) {
2380                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2381                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2382                 TALLOC_FREE(ctx);
2383                 return false;
2384         }
2385         map->sid_name_use = (enum lsa_SidType)atol(temp);
2386
2387         if ((map->sid_name_use < SID_NAME_USER) ||
2388                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2389                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2390                 TALLOC_FREE(ctx);
2391                 return false;
2392         }
2393
2394         TALLOC_FREE(temp);
2395         temp = smbldap_talloc_single_attribute(
2396                         ldap_state->smbldap_state->ldap_struct,
2397                         entry,
2398                         get_attr_key2string(groupmap_attr_list,
2399                                 LDAP_ATTR_DISPLAY_NAME),
2400                         ctx);
2401         if (!temp) {
2402                 temp = smbldap_talloc_single_attribute(
2403                                 ldap_state->smbldap_state->ldap_struct,
2404                                 entry,
2405                                 get_attr_key2string(groupmap_attr_list,
2406                                         LDAP_ATTR_CN),
2407                                 ctx);
2408                 if (!temp) {
2409                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2410 for gidNumber(%lu)\n",(unsigned long)map->gid));
2411                         TALLOC_FREE(ctx);
2412                         return false;
2413                 }
2414         }
2415         fstrcpy(map->nt_name, temp);
2416
2417         TALLOC_FREE(temp);
2418         temp = smbldap_talloc_single_attribute(
2419                         ldap_state->smbldap_state->ldap_struct,
2420                         entry,
2421                         get_attr_key2string(groupmap_attr_list,
2422                                 LDAP_ATTR_DESC),
2423                         ctx);
2424         if (!temp) {
2425                 temp = talloc_strdup(ctx, "");
2426                 if (!temp) {
2427                         TALLOC_FREE(ctx);
2428                         return false;
2429                 }
2430         }
2431         fstrcpy(map->comment, temp);
2432
2433         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2434                 store_gid_sid_cache(&map->sid, map->gid);
2435         }
2436
2437         TALLOC_FREE(ctx);
2438         return true;
2439 }
2440
2441 /**********************************************************************
2442  *********************************************************************/
2443
2444 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2445                                  const char *filter,
2446                                  GROUP_MAP *map)
2447 {
2448         struct ldapsam_privates *ldap_state =
2449                 (struct ldapsam_privates *)methods->private_data;
2450         LDAPMessage *result = NULL;
2451         LDAPMessage *entry = NULL;
2452         int count;
2453
2454         if (ldapsam_search_one_group(ldap_state, filter, &result)
2455             != LDAP_SUCCESS) {
2456                 return NT_STATUS_NO_SUCH_GROUP;
2457         }
2458
2459         count = ldap_count_entries(priv2ld(ldap_state), result);
2460
2461         if (count < 1) {
2462                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2463                           "%s\n", filter));
2464                 ldap_msgfree(result);
2465                 return NT_STATUS_NO_SUCH_GROUP;
2466         }
2467
2468         if (count > 1) {
2469                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2470                           "count=%d\n", filter, count));
2471                 ldap_msgfree(result);
2472                 return NT_STATUS_NO_SUCH_GROUP;
2473         }
2474
2475         entry = ldap_first_entry(priv2ld(ldap_state), result);
2476
2477         if (!entry) {
2478                 ldap_msgfree(result);
2479                 return NT_STATUS_UNSUCCESSFUL;
2480         }
2481
2482         if (!init_group_from_ldap(ldap_state, map, entry)) {
2483                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2484                           "group filter %s\n", filter));
2485                 ldap_msgfree(result);
2486                 return NT_STATUS_NO_SUCH_GROUP;
2487         }
2488
2489         ldap_msgfree(result);
2490         return NT_STATUS_OK;
2491 }
2492
2493 /**********************************************************************
2494  *********************************************************************/
2495
2496 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2497                                  DOM_SID sid)
2498 {
2499         char *filter = NULL;
2500         NTSTATUS status;
2501         fstring tmp;
2502
2503         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2504                 LDAP_OBJ_GROUPMAP,
2505                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2506                 sid_to_fstring(tmp, &sid)) < 0) {
2507                 return NT_STATUS_NO_MEMORY;
2508         }
2509
2510         status = ldapsam_getgroup(methods, filter, map);
2511         SAFE_FREE(filter);
2512         return status;
2513 }
2514
2515 /**********************************************************************
2516  *********************************************************************/
2517
2518 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2519                                  gid_t gid)
2520 {
2521         char *filter = NULL;
2522         NTSTATUS status;
2523
2524         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2525                 LDAP_OBJ_GROUPMAP,
2526                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2527                 (unsigned long)gid) < 0) {
2528                 return NT_STATUS_NO_MEMORY;
2529         }
2530
2531         status = ldapsam_getgroup(methods, filter, map);
2532         SAFE_FREE(filter);
2533         return status;
2534 }
2535
2536 /**********************************************************************
2537  *********************************************************************/
2538
2539 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2540                                  const char *name)
2541 {
2542         char *filter = NULL;
2543         char *escape_name = escape_ldap_string_alloc(name);
2544         NTSTATUS status;
2545
2546         if (!escape_name) {
2547                 return NT_STATUS_NO_MEMORY;
2548         }
2549
2550         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2551                 LDAP_OBJ_GROUPMAP,
2552                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2553                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2554                 escape_name) < 0) {
2555                 SAFE_FREE(escape_name);
2556                 return NT_STATUS_NO_MEMORY;
2557         }
2558
2559         SAFE_FREE(escape_name);
2560         status = ldapsam_getgroup(methods, filter, map);
2561         SAFE_FREE(filter);
2562         return status;
2563 }
2564
2565 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2566                                            LDAPMessage *entry,
2567                                            const DOM_SID *domain_sid,
2568                                            uint32 *rid)
2569 {
2570         fstring str;
2571         DOM_SID sid;
2572
2573         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2574                                           str, sizeof(str)-1)) {
2575                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2576                 return False;
2577         }
2578
2579         if (!string_to_sid(&sid, str)) {
2580                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2581                 return False;
2582         }
2583
2584         if (sid_compare_domain(&sid, domain_sid) != 0) {
2585                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2586                            str, sid_string_dbg(domain_sid)));
2587                 return False;
2588         }
2589
2590         if (!sid_peek_rid(&sid, rid)) {
2591                 DEBUG(10, ("Could not peek into RID\n"));
2592                 return False;
2593         }
2594
2595         return True;
2596 }
2597
2598 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2599                                            TALLOC_CTX *mem_ctx,
2600                                            const DOM_SID *group,
2601                                            uint32 **pp_member_rids,
2602                                            size_t *p_num_members)
2603 {
2604         struct ldapsam_privates *ldap_state =
2605                 (struct ldapsam_privates *)methods->private_data;
2606         struct smbldap_state *conn = ldap_state->smbldap_state;
2607         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2608         const char *sid_attrs[] = { "sambaSID", NULL };
2609         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2610         LDAPMessage *result = NULL;
2611         LDAPMessage *entry;
2612         char *filter;
2613         char **values = NULL;
2614         char **memberuid;
2615         char *gidstr;
2616         int rc, count;
2617
2618         *pp_member_rids = NULL;
2619         *p_num_members = 0;
2620
2621         filter = talloc_asprintf(mem_ctx,
2622                                  "(&(objectClass=%s)"
2623                                  "(objectClass=%s)"
2624                                  "(sambaSID=%s))",
2625                                  LDAP_OBJ_POSIXGROUP,
2626                                  LDAP_OBJ_GROUPMAP,
2627                                  sid_string_talloc(mem_ctx, group));
2628         if (filter == NULL) {
2629                 ret = NT_STATUS_NO_MEMORY;
2630                 goto done;
2631         }
2632
2633         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2634                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2635                             &result);
2636
2637         if (rc != LDAP_SUCCESS)
2638                 goto done;
2639
2640         talloc_autofree_ldapmsg(mem_ctx, result);
2641
2642         count = ldap_count_entries(conn->ldap_struct, result);
2643
2644         if (count > 1) {
2645                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2646                           sid_string_dbg(group)));
2647                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2648                 goto done;
2649         }
2650
2651         if (count == 0) {
2652                 ret = NT_STATUS_NO_SUCH_GROUP;
2653                 goto done;
2654         }
2655
2656         entry = ldap_first_entry(conn->ldap_struct, result);
2657         if (entry == NULL)
2658                 goto done;
2659
2660         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2661         if (!gidstr) {
2662                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2663                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2664                 goto done;
2665         }
2666
2667         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2668
2669         if (values) {
2670
2671                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2672                 if (filter == NULL) {
2673                         ret = NT_STATUS_NO_MEMORY;
2674                         goto done;
2675                 }
2676
2677                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2678                         char *escape_memberuid;
2679
2680                         escape_memberuid = escape_ldap_string_alloc(*memberuid);
2681                         if (escape_memberuid == NULL) {
2682                                 ret = NT_STATUS_NO_MEMORY;
2683                                 goto done;
2684                         }
2685
2686                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2687                         if (filter == NULL) {
2688                                 SAFE_FREE(escape_memberuid);
2689                                 ret = NT_STATUS_NO_MEMORY;
2690                                 goto done;
2691                         }
2692
2693                         SAFE_FREE(escape_memberuid);
2694                 }
2695
2696                 filter = talloc_asprintf_append_buffer(filter, "))");
2697                 if (filter == NULL) {
2698                         ret = NT_STATUS_NO_MEMORY;
2699                         goto done;
2700                 }
2701
2702                 rc = smbldap_search(conn, lp_ldap_suffix(),
2703                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2704                                     &result);
2705
2706                 if (rc != LDAP_SUCCESS)
2707                         goto done;
2708
2709                 count = ldap_count_entries(conn->ldap_struct, result);
2710                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2711
2712                 talloc_autofree_ldapmsg(mem_ctx, result);
2713
2714                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2715                      entry != NULL;
2716                      entry = ldap_next_entry(conn->ldap_struct, entry))
2717                 {
2718                         char *sidstr;
2719                         DOM_SID sid;
2720                         uint32 rid;
2721
2722                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2723                                                                  entry, "sambaSID",
2724                                                                  mem_ctx);
2725                         if (!sidstr) {
2726                                 DEBUG(0, ("Severe DB error, %s can't miss the sambaSID"
2727                                           "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2728                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2729                                 goto done;
2730                         }
2731
2732                         if (!string_to_sid(&sid, sidstr))
2733                                 goto done;
2734
2735                         if (!sid_check_is_in_our_domain(&sid)) {
2736                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2737                                           "in our domain\n"));
2738                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2739                                 goto done;
2740                         }
2741
2742                         sid_peek_rid(&sid, &rid);
2743
2744                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2745                                                 p_num_members)) {
2746                                 ret = NT_STATUS_NO_MEMORY;
2747                                 goto done;
2748                         }
2749                 }
2750         }
2751
2752         filter = talloc_asprintf(mem_ctx,
2753                                  "(&(objectClass=%s)"
2754                                  "(gidNumber=%s))",
2755                                  LDAP_OBJ_SAMBASAMACCOUNT,
2756                                  gidstr);
2757
2758         rc = smbldap_search(conn, lp_ldap_suffix(),
2759                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2760                             &result);
2761
2762         if (rc != LDAP_SUCCESS)
2763                 goto done;
2764
2765         talloc_autofree_ldapmsg(mem_ctx, result);
2766
2767         for (entry = ldap_first_entry(conn->ldap_struct, result);
2768              entry != NULL;
2769              entry = ldap_next_entry(conn->ldap_struct, entry))
2770         {
2771                 uint32 rid;
2772
2773                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2774                                                     entry,
2775                                                     get_global_sam_sid(),
2776                                                     &rid)) {
2777                         DEBUG(0, ("Severe DB error, %s can't miss the samba SID"                                                                "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2778                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2779                         goto done;
2780                 }
2781
2782                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2783                                         p_num_members)) {
2784                         ret = NT_STATUS_NO_MEMORY;
2785                         goto done;
2786                 }
2787         }
2788
2789         ret = NT_STATUS_OK;
2790
2791  done:
2792
2793         if (values)
2794                 ldap_value_free(values);
2795
2796         return ret;
2797 }
2798
2799 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2800                                                TALLOC_CTX *mem_ctx,
2801                                                struct samu *user,
2802                                                DOM_SID **pp_sids,
2803                                                gid_t **pp_gids,
2804                                                size_t *p_num_groups)
2805 {
2806         struct ldapsam_privates *ldap_state =
2807                 (struct ldapsam_privates *)methods->private_data;
2808         struct smbldap_state *conn = ldap_state->smbldap_state;
2809         char *filter;
2810         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2811         char *escape_name;
2812         int rc, count;
2813         LDAPMessage *result = NULL;
2814         LDAPMessage *entry;
2815         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2816         size_t num_sids, num_gids;
2817         char *gidstr;
2818         gid_t primary_gid = -1;
2819
2820         *pp_sids = NULL;
2821         num_sids = 0;
2822
2823         if (pdb_get_username(user) == NULL) {
2824                 return NT_STATUS_INVALID_PARAMETER;
2825         }
2826
2827         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2828         if (escape_name == NULL)
2829                 return NT_STATUS_NO_MEMORY;
2830
2831         /* retrieve the users primary gid */
2832         filter = talloc_asprintf(mem_ctx,
2833                                  "(&(objectClass=%s)(uid=%s))",
2834                                  LDAP_OBJ_SAMBASAMACCOUNT,
2835                                  escape_name);
2836         if (filter == NULL) {
2837                 ret = NT_STATUS_NO_MEMORY;
2838                 goto done;
2839         }
2840
2841         rc = smbldap_search(conn, lp_ldap_suffix(),
2842                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2843
2844         if (rc != LDAP_SUCCESS)
2845                 goto done;
2846
2847         talloc_autofree_ldapmsg(mem_ctx, result);
2848
2849         count = ldap_count_entries(priv2ld(ldap_state), result);
2850
2851         switch (count) {
2852         case 0:
2853                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2854                 ret = NT_STATUS_NO_SUCH_USER;
2855                 goto done;
2856         case 1:
2857                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2858
2859                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2860                 if (!gidstr) {
2861                         DEBUG (1, ("Unable to find the member's gid!\n"));
2862                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2863                         goto done;
2864                 }
2865                 primary_gid = strtoul(gidstr, NULL, 10);
2866                 break;
2867         default:
2868                 DEBUG(1, ("found more than one account with the same user name ?!\n"));
2869                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2870                 goto done;
2871         }
2872
2873         filter = talloc_asprintf(mem_ctx,
2874                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2875                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2876         if (filter == NULL) {
2877                 ret = NT_STATUS_NO_MEMORY;
2878                 goto done;
2879         }
2880
2881         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2882                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2883
2884         if (rc != LDAP_SUCCESS)
2885                 goto done;
2886
2887         talloc_autofree_ldapmsg(mem_ctx, result);
2888
2889         num_gids = 0;
2890         *pp_gids = NULL;
2891
2892         num_sids = 0;
2893         *pp_sids = NULL;
2894
2895         /* We need to add the primary group as the first gid/sid */
2896
2897         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2898                 ret = NT_STATUS_NO_MEMORY;
2899                 goto done;
2900         }
2901
2902         /* This sid will be replaced later */
2903
2904         ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
2905                                       &num_sids);
2906         if (!NT_STATUS_IS_OK(ret)) {
2907                 goto done;
2908         }
2909
2910         for (entry = ldap_first_entry(conn->ldap_struct, result);
2911              entry != NULL;
2912              entry = ldap_next_entry(conn->ldap_struct, entry))
2913         {
2914                 fstring str;
2915                 DOM_SID sid;
2916                 gid_t gid;
2917                 char *end;
2918
2919                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2920                                                   entry, "sambaSID",
2921                                                   str, sizeof(str)-1))
2922                         continue;
2923
2924                 if (!string_to_sid(&sid, str))
2925                         goto done;
2926
2927                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2928                                                   entry, "gidNumber",
2929                                                   str, sizeof(str)-1))
2930                         continue;
2931
2932                 gid = strtoul(str, &end, 10);
2933
2934                 if (PTR_DIFF(end, str) != strlen(str))
2935                         goto done;
2936
2937                 if (gid == primary_gid) {
2938                         sid_copy(&(*pp_sids)[0], &sid);
2939                 } else {
2940                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2941                                                 &num_gids)) {
2942                                 ret = NT_STATUS_NO_MEMORY;
2943                                 goto done;
2944                         }
2945                         ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2946                                                       &num_sids);
2947                         if (!NT_STATUS_IS_OK(ret)) {
2948                                 goto done;
2949                         }
2950                 }
2951         }
2952
2953         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2954                 DEBUG(3, ("primary group of [%s] not found\n",
2955                           pdb_get_username(user)));
2956                 goto done;
2957         }
2958
2959         *p_num_groups = num_sids;
2960
2961         ret = NT_STATUS_OK;
2962
2963  done:
2964
2965         SAFE_FREE(escape_name);
2966         return ret;
2967 }
2968
2969 /**********************************************************************
2970  * Augment a posixGroup object with a sambaGroupMapping domgroup
2971  *********************************************************************/
2972
2973 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2974                                        struct ldapsam_privates *ldap_state,
2975                                        GROUP_MAP *map)
2976 {
2977         const char *filter, *dn;
2978         LDAPMessage *msg, *entry;
2979         LDAPMod **mods;
2980         int rc;
2981
2982         filter = talloc_asprintf(mem_ctx,
2983                                  "(&(objectClass=%s)(gidNumber=%u))",
2984                                  LDAP_OBJ_POSIXGROUP, map->gid);
2985         if (filter == NULL) {
2986                 return NT_STATUS_NO_MEMORY;
2987         }
2988
2989         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2990                                    get_attr_list(mem_ctx, groupmap_attr_list),
2991                                    &msg);
2992         talloc_autofree_ldapmsg(mem_ctx, msg);
2993
2994         if ((rc != LDAP_SUCCESS) ||
2995             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2996             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2997                 return NT_STATUS_NO_SUCH_GROUP;
2998         }
2999
3000         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3001         if (dn == NULL) {
3002                 return NT_STATUS_NO_MEMORY;
3003         }
3004
3005         mods = NULL;
3006         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3007                         LDAP_OBJ_GROUPMAP);
3008         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3009                          sid_string_talloc(mem_ctx, &map->sid));
3010         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3011                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3012         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3013                          map->nt_name);
3014         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3015                          map->comment);
3016         talloc_autofree_ldapmod(mem_ctx, mods);
3017
3018         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3019         if (rc != LDAP_SUCCESS) {
3020                 return NT_STATUS_ACCESS_DENIED;
3021         }
3022
3023         return NT_STATUS_OK;
3024 }
3025
3026 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3027                                                 GROUP_MAP *map)
3028 {
3029         struct ldapsam_privates *ldap_state =
3030                 (struct ldapsam_privates *)methods->private_data;
3031         LDAPMessage *msg = NULL;
3032         LDAPMod **mods = NULL;
3033         const char *attrs[] = { NULL };
3034         char *filter;
3035
3036         char *dn;
3037         TALLOC_CTX *mem_ctx;
3038         NTSTATUS result;
3039
3040         DOM_SID sid;
3041
3042         int rc;
3043
3044         mem_ctx = talloc_new(NULL);
3045         if (mem_ctx == NULL) {
3046                 DEBUG(0, ("talloc_new failed\n"));
3047                 return NT_STATUS_NO_MEMORY;
3048         }
3049
3050         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3051                                  sid_string_talloc(mem_ctx, &map->sid));
3052         if (filter == NULL) {
3053                 result = NT_STATUS_NO_MEMORY;
3054                 goto done;
3055         }
3056
3057         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3058                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3059         talloc_autofree_ldapmsg(mem_ctx, msg);
3060
3061         if ((rc == LDAP_SUCCESS) &&
3062             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3063
3064                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3065                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3066                 result = NT_STATUS_GROUP_EXISTS;
3067                 goto done;
3068         }
3069
3070         switch (map->sid_name_use) {
3071
3072         case SID_NAME_DOM_GRP:
3073                 /* To map a domain group we need to have a posix group
3074                    to attach to. */
3075                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3076                 goto done;
3077                 break;
3078
3079         case SID_NAME_ALIAS:
3080                 if (!sid_check_is_in_our_domain(&map->sid)
3081                         && !sid_check_is_in_builtin(&map->sid) )
3082                 {
3083                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3084                                   sid_string_dbg(&map->sid)));
3085                         result = NT_STATUS_INVALID_PARAMETER;
3086                         goto done;
3087                 }
3088                 break;
3089
3090         default:
3091                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3092                           sid_type_lookup(map->sid_name_use)));
3093                 result = NT_STATUS_INVALID_PARAMETER;
3094                 goto done;
3095         }
3096
3097         /* Domain groups have been mapped in a separate routine, we have to
3098          * create an alias now */
3099
3100         if (map->gid == -1) {
3101                 DEBUG(10, ("Refusing to map gid==-1\n"));
3102                 result = NT_STATUS_INVALID_PARAMETER;
3103                 goto done;
3104         }
3105
3106         if (pdb_gid_to_sid(map->gid, &sid)) {
3107                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
3108                           "add\n", map->gid, sid_string_dbg(&sid)));
3109                 result = NT_STATUS_GROUP_EXISTS;
3110                 goto done;
3111         }
3112
3113         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3114          * the best we can get out of LDAP. */
3115
3116         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3117                              sid_string_talloc(mem_ctx, &map->sid),
3118                              lp_ldap_group_suffix());
3119         if (dn == NULL) {
3120                 result = NT_STATUS_NO_MEMORY;
3121                 goto done;
3122         }
3123
3124         mods = NULL;
3125
3126         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3127                          LDAP_OBJ_SID_ENTRY);
3128         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3129                          LDAP_OBJ_GROUPMAP);
3130         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3131                          sid_string_talloc(mem_ctx, &map->sid));
3132         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3133                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3134         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3135                          map->nt_name);
3136         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3137                          map->comment);
3138         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3139                          talloc_asprintf(mem_ctx, "%u", map->gid));
3140         talloc_autofree_ldapmod(mem_ctx, mods);
3141
3142         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3143
3144         result = (rc == LDAP_SUCCESS) ?
3145                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3146
3147  done:
3148         TALLOC_FREE(mem_ctx);
3149         return result;
3150 }
3151
3152 /**********************************************************************
3153  * Update a group mapping entry. We're quite strict about what can be changed:
3154  * Only the description and displayname may be changed. It simply does not
3155  * make any sense to change the SID, gid or the type in a mapping.
3156  *********************************************************************/
3157
3158 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3159                                                    GROUP_MAP *map)
3160 {
3161         struct ldapsam_privates *ldap_state =
3162                 (struct ldapsam_privates *)methods->private_data;
3163         int rc;
3164         const char *filter, *dn;
3165         LDAPMessage *msg = NULL;
3166         LDAPMessage *entry = NULL;
3167         LDAPMod **mods = NULL;
3168         TALLOC_CTX *mem_ctx;
3169         NTSTATUS result;
3170
3171         mem_ctx = talloc_new(NULL);
3172         if (mem_ctx == NULL) {
3173                 DEBUG(0, ("talloc_new failed\n"));
3174                 return NT_STATUS_NO_MEMORY;
3175         }
3176
3177         /* Make 100% sure that sid, gid and type are not changed by looking up
3178          * exactly the values we're given in LDAP. */
3179
3180         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3181                                  "(sambaSid=%s)(gidNumber=%u)"
3182                                  "(sambaGroupType=%d))",
3183                                  LDAP_OBJ_GROUPMAP,
3184                                  sid_string_talloc(mem_ctx, &map->sid),
3185                                  map->gid, map->sid_name_use);
3186         if (filter == NULL) {
3187                 result = NT_STATUS_NO_MEMORY;
3188                 goto done;
3189         }
3190
3191         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3192                                    get_attr_list(mem_ctx, groupmap_attr_list),
3193                                    &msg);
3194         talloc_autofree_ldapmsg(mem_ctx, msg);
3195
3196         if ((rc != LDAP_SUCCESS) ||
3197             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3198             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3199                 result = NT_STATUS_NO_SUCH_GROUP;
3200                 goto done;
3201         }
3202
3203         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3204
3205         if (dn == NULL) {
3206                 result = NT_STATUS_NO_MEMORY;
3207                 goto done;
3208         }
3209
3210         mods = NULL;
3211         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3212                          map->nt_name);
3213         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3214                          map->comment);
3215         talloc_autofree_ldapmod(mem_ctx, mods);
3216
3217         if (mods == NULL) {
3218                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3219                           "nothing to do\n"));
3220                 result = NT_STATUS_OK;
3221                 goto done;
3222         }
3223
3224         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3225
3226         if (rc != LDAP_SUCCESS) {
3227                 result = NT_STATUS_ACCESS_DENIED;
3228                 goto done;
3229         }
3230
3231         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3232                   "group %lu in LDAP\n", (unsigned long)map->gid));
3233
3234         result = NT_STATUS_OK;
3235
3236  done:
3237         TALLOC_FREE(mem_ctx);
3238         return result;
3239 }
3240
3241 /**********************************************************************
3242  *********************************************************************/
3243
3244 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3245                                                    DOM_SID sid)
3246 {
3247         struct ldapsam_privates *priv =
3248                 (struct ldapsam_privates *)methods->private_data;
3249         LDAPMessage *msg, *entry;
3250         int rc;
3251         NTSTATUS result;
3252         TALLOC_CTX *mem_ctx;
3253         char *filter;
3254
3255         mem_ctx = talloc_new(NULL);
3256         if (mem_ctx == NULL) {
3257                 DEBUG(0, ("talloc_new failed\n"));
3258                 return NT_STATUS_NO_MEMORY;
3259         }
3260
3261         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3262                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3263                                  sid_string_talloc(mem_ctx, &sid));
3264         if (filter == NULL) {
3265                 result = NT_STATUS_NO_MEMORY;
3266                 goto done;
3267         }
3268         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3269                                    get_attr_list(mem_ctx, groupmap_attr_list),
3270                                    &msg);
3271         talloc_autofree_ldapmsg(mem_ctx, msg);
3272
3273         if ((rc != LDAP_SUCCESS) ||
3274             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3275             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3276                 result = NT_STATUS_NO_SUCH_GROUP;
3277                 goto done;
3278         }
3279
3280         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3281                                   get_attr_list(mem_ctx,
3282                                                 groupmap_attr_list_to_delete));
3283
3284         if ((rc == LDAP_NAMING_VIOLATION) ||
3285             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3286                 const char *attrs[] = { "sambaGroupType", "description",
3287                                         "displayName", "sambaSIDList",
3288                                         NULL };
3289
3290                 /* Second try. Don't delete the sambaSID attribute, this is
3291                    for "old" entries that are tacked on a winbind
3292                    sambaIdmapEntry. */
3293
3294                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3295                                           LDAP_OBJ_GROUPMAP, attrs);
3296         }
3297
3298         if ((rc == LDAP_NAMING_VIOLATION) ||
3299             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3300                 const char *attrs[] = { "sambaGroupType", "description",
3301                                         "displayName", "sambaSIDList",
3302                                         "gidNumber", NULL };
3303
3304                 /* Third try. This is a post-3.0.21 alias (containing only
3305                  * sambaSidEntry and sambaGroupMapping classes), we also have
3306                  * to delete the gidNumber attribute, only the sambaSidEntry
3307                  * remains */
3308
3309                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3310                                           LDAP_OBJ_GROUPMAP, attrs);
3311         }
3312
3313         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3314
3315  done:
3316         TALLOC_FREE(mem_ctx);
3317         return result;
3318  }
3319
3320 /**********************************************************************
3321  *********************************************************************/
3322
3323 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3324                                     bool update)
3325 {
3326         struct ldapsam_privates *ldap_state =
3327                 (struct ldapsam_privates *)my_methods->private_data;
3328         char *filter = NULL;
3329         int rc;
3330         const char **attr_list;
3331
3332         filter = talloc_asprintf(NULL, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3333         if (!filter) {
3334                 return NT_STATUS_NO_MEMORY;
3335         }
3336         attr_list = get_attr_list( NULL, groupmap_attr_list );
3337         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3338                             LDAP_SCOPE_SUBTREE, filter,
3339                             attr_list, 0, &ldap_state->result);
3340         TALLOC_FREE(attr_list);
3341
3342         if (rc != LDAP_SUCCESS) {
3343                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3344                           ldap_err2string(rc)));
3345                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3346                           lp_ldap_group_suffix(), filter));
3347                 ldap_msgfree(ldap_state->result);
3348                 ldap_state->result = NULL;
3349                 TALLOC_FREE(filter);
3350                 return NT_STATUS_UNSUCCESSFUL;
3351         }
3352
3353         TALLOC_FREE(filter);
3354
3355         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3356                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3357                                      ldap_state->result)));
3358
3359         ldap_state->entry =
3360                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3361                                  ldap_state->result);
3362         ldap_state->index = 0;
3363
3364         return NT_STATUS_OK;
3365 }
3366
3367 /**********************************************************************
3368  *********************************************************************/
3369
3370 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3371 {
3372         ldapsam_endsampwent(my_methods);
3373 }
3374
3375 /**********************************************************************
3376  *********************************************************************/
3377
3378 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3379                                     GROUP_MAP *map)
3380 {
3381         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3382         struct ldapsam_privates *ldap_state =
3383                 (struct ldapsam_privates *)my_methods->private_data;
3384         bool bret = False;
3385
3386         while (!bret) {
3387                 if (!ldap_state->entry)
3388                         return ret;
3389
3390                 ldap_state->index++;
3391                 bret = init_group_from_ldap(ldap_state, map,
3392                                             ldap_state->entry);
3393
3394                 ldap_state->entry =
3395                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3396                                         ldap_state->entry);
3397         }
3398
3399         return NT_STATUS_OK;
3400 }
3401
3402 /**********************************************************************
3403  *********************************************************************/
3404
3405 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3406                                            const DOM_SID *domsid, enum lsa_SidType sid_name_use,
3407                                            GROUP_MAP **pp_rmap,
3408                                            size_t *p_num_entries,
3409                                            bool unix_only)
3410 {
3411         GROUP_MAP map;
3412         size_t entries = 0;
3413
3414         *p_num_entries = 0;
3415         *pp_rmap = NULL;
3416
3417         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3418                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3419                           "passdb\n"));
3420                 return NT_STATUS_ACCESS_DENIED;
3421         }
3422
3423         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3424                 if (sid_name_use != SID_NAME_UNKNOWN &&
3425                     sid_name_use != map.sid_name_use) {
3426                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3427                                   "not of the requested type\n", map.nt_name));
3428                         continue;
3429                 }
3430                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3431                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3432                                   "non mapped\n", map.nt_name));
3433                         continue;
3434                 }
3435
3436                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3437                 if (!(*pp_rmap)) {
3438                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3439                                  "enlarge group map!\n"));
3440                         return NT_STATUS_UNSUCCESSFUL;
3441                 }
3442
3443                 (*pp_rmap)[entries] = map;
3444
3445                 entries += 1;
3446
3447         }
3448         ldapsam_endsamgrent(methods);
3449
3450         *p_num_entries = entries;
3451
3452         return NT_STATUS_OK;
3453 }
3454
3455 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3456                                         const DOM_SID *alias,
3457                                         const DOM_SID *member,
3458                                         int modop)
3459 {
3460         struct ldapsam_privates *ldap_state =
3461                 (struct ldapsam_privates *)methods->private_data;
3462         char *dn = NULL;
3463         LDAPMessage *result = NULL;
3464         LDAPMessage *entry = NULL;
3465         int count;
3466         LDAPMod **mods = NULL;
3467         int rc;
3468         enum lsa_SidType type = SID_NAME_USE_NONE;
3469         fstring tmp;
3470
3471         char *filter = NULL;
3472
3473         if (sid_check_is_in_builtin(alias)) {
3474                 type = SID_NAME_ALIAS;
3475         }
3476
3477         if (sid_check_is_in_our_domain(alias)) {
3478                 type = SID_NAME_ALIAS;
3479         }
3480
3481         if (type == SID_NAME_USE_NONE) {
3482                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3483                           sid_string_dbg(alias)));
3484                 return NT_STATUS_NO_SUCH_ALIAS;
3485         }
3486
3487         if (asprintf(&filter,
3488                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3489                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3490                      type) < 0) {
3491                 return NT_STATUS_NO_MEMORY;
3492         }
3493
3494         if (ldapsam_search_one_group(ldap_state, filter,
3495                                      &result) != LDAP_SUCCESS) {
3496                 SAFE_FREE(filter);
3497                 return NT_STATUS_NO_SUCH_ALIAS;
3498         }
3499
3500         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3501                                    result);
3502
3503         if (count < 1) {
3504                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3505                 ldap_msgfree(result);
3506                 SAFE_FREE(filter);
3507                 return NT_STATUS_NO_SUCH_ALIAS;
3508         }
3509
3510         if (count > 1) {
3511                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3512                           "filter %s: count=%d\n", filter, count));
3513                 ldap_msgfree(result);
3514                 SAFE_FREE(filter);
3515                 return NT_STATUS_NO_SUCH_ALIAS;
3516         }
3517
3518         SAFE_FREE(filter);
3519
3520         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3521                                  result);
3522
3523         if (!entry) {
3524                 ldap_msgfree(result);
3525                 return NT_STATUS_UNSUCCESSFUL;
3526         }
3527
3528         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
3529         if (!dn) {
3530                 ldap_msgfree(result);
3531                 return NT_STATUS_UNSUCCESSFUL;
3532         }
3533
3534         smbldap_set_mod(&mods, modop,
3535                         get_attr_key2string(groupmap_attr_list,
3536                                             LDAP_ATTR_SID_LIST),
3537                         sid_to_fstring(tmp, member));
3538
3539         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3540
3541         ldap_mods_free(mods, True);
3542         ldap_msgfree(result);
3543         SAFE_FREE(dn);
3544
3545         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3546                 return NT_STATUS_MEMBER_IN_ALIAS;
3547         }
3548
3549         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3550                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3551         }
3552
3553         if (rc != LDAP_SUCCESS) {
3554                 return NT_STATUS_UNSUCCESSFUL;
3555         }
3556
3557         return NT_STATUS_OK;
3558 }
3559
3560 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3561                                      const DOM_SID *alias,
3562                                      const DOM_SID *member)
3563 {
3564         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3565 }
3566
3567 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3568                                      const DOM_SID *alias,
3569                                      const DOM_SID *member)
3570 {
3571         return ldapsam_modify_aliasmem(methods, alias, member,
3572                                        LDAP_MOD_DELETE);
3573 }
3574
3575 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3576                                       const DOM_SID *alias,
3577                                       DOM_SID **pp_members,
3578                                       size_t *p_num_members)
3579 {
3580         struct ldapsam_privates *ldap_state =
3581                 (struct ldapsam_privates *)methods->private_data;
3582         LDAPMessage *result = NULL;
3583         LDAPMessage *entry = NULL;
3584         int count;
3585         char **values = NULL;
3586         int i;
3587         char *filter = NULL;
3588         size_t num_members = 0;
3589         enum lsa_SidType type = SID_NAME_USE_NONE;
3590         fstring tmp;
3591
3592         *pp_members = NULL;
3593         *p_num_members = 0;
3594
3595         if (sid_check_is_in_builtin(alias)) {
3596                 type = SID_NAME_ALIAS;
3597         }
3598
3599         if (sid_check_is_in_our_domain(alias)) {
3600                 type = SID_NAME_ALIAS;
3601         }
3602
3603         if (type == SID_NAME_USE_NONE) {
3604                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3605                           sid_string_dbg(alias)));
3606                 return NT_STATUS_NO_SUCH_ALIAS;
3607         }
3608
3609         if (asprintf(&filter,
3610                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3611                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3612                      type) < 0) {
3613                 return NT_STATUS_NO_MEMORY;
3614         }
3615
3616         if (ldapsam_search_one_group(ldap_state, filter,
3617                                      &result) != LDAP_SUCCESS) {
3618                 SAFE_FREE(filter);
3619                 return NT_STATUS_NO_SUCH_ALIAS;
3620         }
3621
3622         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3623                                    result);
3624
3625         if (count < 1) {
3626                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3627                 ldap_msgfree(result);
3628                 SAFE_FREE(filter);
3629                 return NT_STATUS_NO_SUCH_ALIAS;
3630         }
3631
3632         if (count > 1) {
3633                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3634                           "filter %s: count=%d\n", filter, count));
3635                 ldap_msgfree(result);
3636                 SAFE_FREE(filter);
3637                 return NT_STATUS_NO_SUCH_ALIAS;
3638         }
3639
3640         SAFE_FREE(filter);
3641
3642         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3643                                  result);
3644
3645         if (!entry) {
3646                 ldap_msgfree(result);
3647                 return NT_STATUS_UNSUCCESSFUL;
3648         }
3649
3650         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3651                                  entry,
3652                                  get_attr_key2string(groupmap_attr_list,
3653                                                      LDAP_ATTR_SID_LIST));
3654
3655         if (values == NULL) {
3656                 ldap_msgfree(result);
3657                 return NT_STATUS_OK;
3658         }
3659
3660         count = ldap_count_values(values);
3661
3662         for (i=0; i<count; i++) {
3663                 DOM_SID member;
3664                 NTSTATUS status;
3665
3666                 if (!string_to_sid(&member, values[i]))
3667                         continue;
3668
3669                 status = add_sid_to_array(NULL, &member, pp_members,
3670                                           &num_members);
3671                 if (!NT_STATUS_IS_OK(status)) {
3672                         ldap_value_free(values);
3673                         ldap_msgfree(result);
3674                         return status;
3675                 }
3676         }
3677
3678         *p_num_members = num_members;
3679         ldap_value_free(values);
3680         ldap_msgfree(result);
3681
3682         return NT_STATUS_OK;
3683 }
3684
3685 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3686                                           TALLOC_CTX *mem_ctx,
3687                                           const DOM_SID *domain_sid,
3688                                           const DOM_SID *members,
3689                                           size_t num_members,
3690                                           uint32 **pp_alias_rids,
3691                                           size_t *p_num_alias_rids)
3692 {
3693         struct ldapsam_privates *ldap_state =
3694                 (struct ldapsam_privates *)methods->private_data;
3695         LDAP *ldap_struct;
3696
3697         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3698
3699         LDAPMessage *result = NULL;
3700         LDAPMessage *entry = NULL;
3701         int i;
3702         int rc;
3703         char *filter;
3704         enum lsa_SidType type = SID_NAME_USE_NONE;
3705
3706         if (sid_check_is_builtin(domain_sid)) {
3707                 type = SID_NAME_ALIAS;
3708         }
3709
3710         if (sid_check_is_domain(domain_sid)) {
3711                 type = SID_NAME_ALIAS;
3712         }
3713
3714         if (type == SID_NAME_USE_NONE) {
3715                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3716                           sid_string_dbg(domain_sid)));
3717                 return NT_STATUS_UNSUCCESSFUL;
3718         }
3719
3720         filter = talloc_asprintf(mem_ctx,
3721                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3722                                  LDAP_OBJ_GROUPMAP, type);
3723
3724         for (i=0; i<num_members; i++)
3725                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3726                                          filter,
3727                                          sid_string_talloc(mem_ctx,
3728                                                            &members[i]));
3729
3730         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3731
3732         if (filter == NULL) {
3733                 return NT_STATUS_NO_MEMORY;
3734         }
3735
3736         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3737                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3738
3739         if (rc != LDAP_SUCCESS)
3740                 return NT_STATUS_UNSUCCESSFUL;
3741
3742         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3743
3744         for (entry = ldap_first_entry(ldap_struct, result);
3745              entry != NULL;
3746              entry = ldap_next_entry(ldap_struct, entry))
3747         {
3748                 fstring sid_str;
3749                 DOM_SID sid;
3750                 uint32 rid;
3751
3752                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3753                                                   LDAP_ATTRIBUTE_SID,
3754                                                   sid_str,
3755                                                   sizeof(sid_str)-1))
3756                         continue;
3757
3758                 if (!string_to_sid(&sid, sid_str))
3759                         continue;
3760
3761                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3762                         continue;
3763
3764                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3765                                         p_num_alias_rids)) {
3766                         ldap_msgfree(result);
3767                         return NT_STATUS_NO_MEMORY;
3768                 }
3769         }
3770
3771         ldap_msgfree(result);
3772         return NT_STATUS_OK;
3773 }
3774
3775 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3776                                                    int policy_index,
3777                                                    uint32 value)
3778 {
3779         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3780         int rc;
3781         LDAPMod **mods = NULL;
3782         fstring value_string;
3783         const char *policy_attr = NULL;
3784
3785         struct ldapsam_privates *ldap_state =
3786                 (struct ldapsam_privates *)methods->private_data;
3787
3788         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3789
3790         if (!ldap_state->domain_dn) {
3791                 return NT_STATUS_INVALID_PARAMETER;
3792         }
3793
3794         policy_attr = get_account_policy_attr(policy_index);
3795         if (policy_attr == NULL) {
3796                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3797                          "policy\n"));
3798                 return ntstatus;
3799         }
3800
3801         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3802
3803         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3804
3805         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3806                             mods);
3807
3808         ldap_mods_free(mods, True);
3809
3810         if (rc != LDAP_SUCCESS) {
3811                 return ntstatus;
3812         }
3813
3814         if (!cache_account_policy_set(policy_index, value)) {
3815                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3816                          "update local tdb cache\n"));
3817                 return ntstatus;
3818         }
3819
3820         return NT_STATUS_OK;
3821 }
3822
3823 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3824                                            int policy_index, uint32 value)
3825 {
3826         return ldapsam_set_account_policy_in_ldap(methods, policy_index,
3827                                                   value);
3828 }
3829
3830 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3831                                                      int policy_index,
3832                                                      uint32 *value)
3833 {
3834         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3835         LDAPMessage *result = NULL;
3836         LDAPMessage *entry = NULL;
3837         int count;
3838         int rc;
3839         char **vals = NULL;
3840         const char *policy_attr = NULL;
3841
3842         struct ldapsam_privates *ldap_state =
3843                 (struct ldapsam_privates *)methods->private_data;
3844
3845         const char *attrs[2];
3846
3847         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3848
3849         if (!ldap_state->domain_dn) {
3850                 return NT_STATUS_INVALID_PARAMETER;
3851         }
3852
3853         policy_attr = get_account_policy_attr(policy_index);
3854         if (!policy_attr) {
3855                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3856                          "policy index: %d\n", policy_index));
3857                 return ntstatus;
3858         }
3859
3860         attrs[0] = policy_attr;
3861         attrs[1] = NULL;
3862
3863         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3864                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3865                             &result);
3866
3867         if (rc != LDAP_SUCCESS) {
3868                 return ntstatus;
3869         }
3870
3871         count = ldap_count_entries(priv2ld(ldap_state), result);
3872         if (count < 1) {
3873                 goto out;
3874         }
3875
3876         entry = ldap_first_entry(priv2ld(ldap_state), result);
3877         if (entry == NULL) {
3878                 goto out;
3879         }
3880
3881         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3882         if (vals == NULL) {
3883                 goto out;
3884         }
3885
3886         *value = (uint32)atol(vals[0]);
3887
3888         ntstatus = NT_STATUS_OK;
3889
3890 out:
3891         if (vals)
3892                 ldap_value_free(vals);
3893         ldap_msgfree(result);
3894
3895         return ntstatus;
3896 }
3897
3898 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3899
3900    - if user hasn't decided to use account policies inside LDAP just reuse the
3901      old tdb values
3902
3903    - if there is a valid cache entry, return that
3904    - if there is an LDAP entry, update cache and return
3905    - otherwise set to default, update cache and return
3906
3907    Guenther
3908 */
3909 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3910                                            int policy_index, uint32 *value)
3911 {
3912         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3913
3914         if (cache_account_policy_get(policy_index, value)) {
3915                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3916                           "cache\n"));
3917                 return NT_STATUS_OK;
3918         }
3919
3920         ntstatus = ldapsam_get_account_policy_from_ldap(methods, policy_index,
3921                                                         value);
3922         if (NT_STATUS_IS_OK(ntstatus)) {
3923                 goto update_cache;
3924         }
3925
3926         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
3927                   "ldap\n"));
3928
3929 #if 0
3930         /* should we automagically migrate old tdb value here ? */
3931         if (account_policy_get(policy_index, value))
3932                 goto update_ldap;
3933
3934         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
3935                   "default\n", policy_index));
3936 #endif
3937
3938         if (!account_policy_get_default(policy_index, value)) {
3939                 return ntstatus;
3940         }
3941
3942 /* update_ldap: */
3943
3944         ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
3945         if (!NT_STATUS_IS_OK(ntstatus)) {
3946                 return ntstatus;
3947         }
3948
3949  update_cache:
3950
3951         if (!cache_account_policy_set(policy_index, *value)) {
3952                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
3953                          "tdb as a cache\n"));
3954                 return NT_STATUS_UNSUCCESSFUL;
3955         }
3956
3957         return NT_STATUS_OK;
3958 }
3959
3960 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
3961                                     const DOM_SID *domain_sid,
3962                                     int num_rids,
3963                                     uint32 *rids,
3964                                     const char **names,
3965                                     enum lsa_SidType *attrs)
3966 {
3967         struct ldapsam_privates *ldap_state =
3968                 (struct ldapsam_privates *)methods->private_data;
3969         LDAPMessage *msg = NULL;
3970         LDAPMessage *entry;
3971         char *allsids = NULL;
3972         int i, rc, num_mapped;
3973         NTSTATUS result = NT_STATUS_NO_MEMORY;
3974         TALLOC_CTX *mem_ctx;
3975         LDAP *ld;
3976         bool is_builtin;
3977
3978         mem_ctx = talloc_new(NULL);
3979         if (mem_ctx == NULL) {
3980                 DEBUG(0, ("talloc_new failed\n"));
3981                 goto done;
3982         }
3983
3984         if (!sid_check_is_builtin(domain_sid) &&
3985             !sid_check_is_domain(domain_sid)) {
3986                 result = NT_STATUS_INVALID_PARAMETER;
3987                 goto done;
3988         }
3989
3990         for (i=0; i<num_rids; i++)
3991                 attrs[i] = SID_NAME_UNKNOWN;
3992
3993         allsids = talloc_strdup(mem_ctx, "");
3994         if (allsids == NULL) {
3995                 goto done;
3996         }
3997
3998         for (i=0; i<num_rids; i++) {
3999                 DOM_SID sid;
4000                 sid_compose(&sid, domain_sid, rids[i]);
4001                 allsids = talloc_asprintf_append_buffer(
4002                         allsids, "(sambaSid=%s)",
4003                         sid_string_talloc(mem_ctx, &sid));
4004                 if (allsids == NULL) {
4005                         goto done;
4006                 }
4007         }
4008
4009         /* First look for users */
4010
4011         {
4012                 char *filter;
4013                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
4014
4015                 filter = talloc_asprintf(
4016                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
4017                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
4018
4019                 if (filter == NULL) {
4020                         goto done;
4021                 }
4022
4023                 rc = smbldap_search(ldap_state->smbldap_state,
4024                                     lp_ldap_user_suffix(),
4025                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4026                                     &msg);
4027                 talloc_autofree_ldapmsg(mem_ctx, msg);
4028         }
4029
4030         if (rc != LDAP_SUCCESS)
4031                 goto done;
4032
4033         ld = ldap_state->smbldap_state->ldap_struct;
4034         num_mapped = 0;
4035
4036         for (entry = ldap_first_entry(ld, msg);
4037              entry != NULL;
4038              entry = ldap_next_entry(ld, entry)) {
4039                 uint32 rid;
4040                 int rid_index;
4041                 const char *name;
4042
4043                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4044                                                     &rid)) {
4045                         DEBUG(2, ("Could not find sid from ldap entry\n"));
4046                         continue;
4047                 }
4048
4049                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
4050                                                        names);
4051                 if (name == NULL) {
4052                         DEBUG(2, ("Could not retrieve uid attribute\n"));
4053                         continue;
4054                 }
4055
4056                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4057                         if (rid == rids[rid_index])
4058                                 break;
4059                 }
4060
4061                 if (rid_index == num_rids) {
4062                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4063                         continue;
4064                 }
4065
4066                 attrs[rid_index] = SID_NAME_USER;
4067                 names[rid_index] = name;
4068                 num_mapped += 1;
4069         }
4070
4071         if (num_mapped == num_rids) {
4072                 /* No need to look for groups anymore -- we're done */
4073                 result = NT_STATUS_OK;
4074                 goto done;
4075         }
4076
4077         /* Same game for groups */
4078
4079         {
4080                 char *filter;
4081                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
4082                                              "sambaGroupType", NULL };
4083
4084                 filter = talloc_asprintf(
4085                         mem_ctx, "(&(objectClass=%s)(|%s))",
4086                         LDAP_OBJ_GROUPMAP, allsids);
4087                 if (filter == NULL) {
4088                         goto done;
4089                 }
4090
4091                 rc = smbldap_search(ldap_state->smbldap_state,
4092                                     lp_ldap_group_suffix(),
4093                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4094                                     &msg);
4095                 talloc_autofree_ldapmsg(mem_ctx, msg);
4096         }
4097
4098         if (rc != LDAP_SUCCESS)
4099                 goto done;
4100
4101         /* ldap_struct might have changed due to a reconnect */
4102
4103         ld = ldap_state->smbldap_state->ldap_struct;
4104
4105         /* For consistency checks, we already checked we're only domain or builtin */
4106
4107         is_builtin = sid_check_is_builtin(domain_sid);
4108
4109         for (entry = ldap_first_entry(ld, msg);
4110              entry != NULL;
4111              entry = ldap_next_entry(ld, entry))
4112         {
4113                 uint32 rid;
4114                 int rid_index;
4115                 const char *attr;
4116                 enum lsa_SidType type;
4117                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
4118
4119                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
4120                                                        mem_ctx);
4121                 if (attr == NULL) {
4122                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
4123                                   dn));
4124                         continue;
4125                 }
4126
4127                 type = (enum lsa_SidType)atol(attr);
4128
4129                 /* Consistency checks */
4130                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
4131                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
4132                                      (type != SID_NAME_DOM_GRP)))) {
4133                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
4134                 }
4135
4136                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4137                                                     &rid)) {
4138                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
4139                         continue;
4140                 }
4141
4142                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
4143
4144                 if (attr == NULL) {
4145                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
4146                                    dn));
4147                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
4148                 }
4149
4150                 if (attr == NULL) {
4151                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
4152                                   dn));
4153                         continue;
4154                 }
4155
4156                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4157                         if (rid == rids[rid_index])
4158                                 break;
4159                 }
4160
4161                 if (rid_index == num_rids) {
4162                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4163                         continue;
4164                 }
4165
4166                 attrs[rid_index] = type;
4167                 names[rid_index] = attr;
4168                 num_mapped += 1;
4169         }
4170
4171         result = NT_STATUS_NONE_MAPPED;
4172
4173         if (num_mapped > 0)
4174                 result = (num_mapped == num_rids) ?
4175                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
4176  done:
4177         TALLOC_FREE(mem_ctx);
4178         return result;
4179 }
4180
4181 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
4182 {
4183         char *filter = NULL;
4184         char *escaped = NULL;
4185         char *result = NULL;
4186
4187         asprintf(&filter, "(&%s(objectclass=%s))",
4188                           "(uid=%u)", LDAP_OBJ_SAMBASAMACCOUNT);
4189         if (filter == NULL) goto done;
4190
4191         escaped = escape_ldap_string_alloc(username);
4192         if (escaped == NULL) goto done;
4193
4194         result = talloc_string_sub(mem_ctx, filter, "%u", username);
4195
4196  done:
4197         SAFE_FREE(filter);
4198         SAFE_FREE(escaped);
4199
4200         return result;
4201 }
4202
4203 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
4204 {
4205         int i, num = 0;
4206         va_list ap;
4207         const char **result;
4208
4209         va_start(ap, mem_ctx);
4210         while (va_arg(ap, const char *) != NULL)
4211                 num += 1;
4212         va_end(ap);
4213
4214         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
4215                 return NULL;
4216         }
4217
4218         va_start(ap, mem_ctx);
4219         for (i=0; i<num; i++) {
4220                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
4221                 if (result[i] == NULL) {
4222                         talloc_free(result);
4223                         return NULL;
4224                 }
4225         }
4226         va_end(ap);
4227
4228         result[num] = NULL;
4229         return result;
4230 }
4231
4232 struct ldap_search_state {
4233         struct smbldap_state *connection;
4234
4235         uint32 acct_flags;
4236         uint16 group_type;
4237
4238         const char *base;
4239         int scope;
4240         const char *filter;
4241         const char **attrs;
4242         int attrsonly;
4243         void *pagedresults_cookie;
4244
4245         LDAPMessage *entries, *current_entry;
4246         bool (*ldap2displayentry)(struct ldap_search_state *state,
4247                                   TALLOC_CTX *mem_ctx,
4248                                   LDAP *ld, LDAPMessage *entry,
4249                                   struct samr_displayentry *result);
4250 };
4251
4252 static bool ldapsam_search_firstpage(struct pdb_search *search)
4253 {
4254         struct ldap_search_state *state =
4255                 (struct ldap_search_state *)search->private_data;
4256         LDAP *ld;
4257         int rc = LDAP_OPERATIONS_ERROR;
4258
4259         state->entries = NULL;
4260
4261         if (state->connection->paged_results) {
4262                 rc = smbldap_search_paged(state->connection, state->base,
4263                                           state->scope, state->filter,
4264                                           state->attrs, state->attrsonly,
4265                                           lp_ldap_page_size(), &state->entries,
4266                                           &state->pagedresults_cookie);
4267         }
4268
4269         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
4270
4271                 if (state->entries != NULL) {
4272                         /* Left over from unsuccessful paged attempt */
4273                         ldap_msgfree(state->entries);
4274                         state->entries = NULL;
4275                 }
4276
4277                 rc = smbldap_search(state->connection, state->base,
4278                                     state->scope, state->filter, state->attrs,
4279                                     state->attrsonly, &state->entries);
4280
4281                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4282                         return False;
4283
4284                 /* Ok, the server was lying. It told us it could do paged
4285                  * searches when it could not. */
4286                 state->connection->paged_results = False;
4287         }
4288
4289         ld = state->connection->ldap_struct;
4290         if ( ld == NULL) {
4291                 DEBUG(5, ("Don't have an LDAP connection right after a "
4292                           "search\n"));
4293                 return False;
4294         }
4295         state->current_entry = ldap_first_entry(ld, state->entries);
4296
4297         if (state->current_entry == NULL) {
4298                 ldap_msgfree(state->entries);
4299                 state->entries = NULL;
4300         }
4301
4302         return True;
4303 }
4304
4305 static bool ldapsam_search_nextpage(struct pdb_search *search)
4306 {
4307         struct ldap_search_state *state =
4308                 (struct ldap_search_state *)search->private_data;
4309         int rc;
4310
4311         if (!state->connection->paged_results) {
4312                 /* There is no next page when there are no paged results */
4313                 return False;
4314         }
4315
4316         rc = smbldap_search_paged(state->connection, state->base,
4317                                   state->scope, state->filter, state->attrs,
4318                                   state->attrsonly, lp_ldap_page_size(),
4319                                   &state->entries,
4320                                   &state->pagedresults_cookie);
4321
4322         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4323                 return False;
4324
4325         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4326
4327         if (state->current_entry == NULL) {
4328                 ldap_msgfree(state->entries);
4329                 state->entries = NULL;
4330         }
4331
4332         return True;
4333 }
4334
4335 static bool ldapsam_search_next_entry(struct pdb_search *search,
4336                                       struct samr_displayentry *entry)
4337 {
4338         struct ldap_search_state *state =
4339                 (struct ldap_search_state *)search->private_data;
4340         bool result;
4341
4342  retry:
4343         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4344                 return False;
4345
4346         if ((state->entries == NULL) &&
4347             !ldapsam_search_nextpage(search))
4348                     return False;
4349
4350         result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
4351                                           state->current_entry, entry);
4352
4353         if (!result) {
4354                 char *dn;
4355                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4356                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4357                 if (dn != NULL) ldap_memfree(dn);
4358         }
4359
4360         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4361
4362         if (state->current_entry == NULL) {
4363                 ldap_msgfree(state->entries);
4364                 state->entries = NULL;
4365         }
4366
4367         if (!result) goto retry;
4368
4369         return True;
4370 }
4371
4372 static void ldapsam_search_end(struct pdb_search *search)
4373 {
4374         struct ldap_search_state *state =
4375                 (struct ldap_search_state *)search->private_data;
4376         int rc;
4377
4378         if (state->pagedresults_cookie == NULL)
4379                 return;
4380
4381         if (state->entries != NULL)
4382                 ldap_msgfree(state->entries);
4383
4384         state->entries = NULL;
4385         state->current_entry = NULL;
4386
4387         if (!state->connection->paged_results)
4388                 return;
4389
4390         /* Tell the LDAP server we're not interested in the rest anymore. */
4391
4392         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4393                                   state->filter, state->attrs,
4394                                   state->attrsonly, 0, &state->entries,
4395                                   &state->pagedresults_cookie);
4396
4397         if (rc != LDAP_SUCCESS)
4398                 DEBUG(5, ("Could not end search properly\n"));
4399
4400         return;
4401 }
4402
4403 static bool ldapuser2displayentry(struct ldap_search_state *state,
4404                                   TALLOC_CTX *mem_ctx,
4405                                   LDAP *ld, LDAPMessage *entry,
4406                                   struct samr_displayentry *result)
4407 {
4408         char **vals;
4409         size_t converted_size;
4410         DOM_SID sid;
4411         uint32 acct_flags;
4412
4413         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4414         if ((vals == NULL) || (vals[0] == NULL)) {
4415                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4416                 return False;
4417         }
4418         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4419         ldap_value_free(vals);
4420
4421         if ((state->acct_flags != 0) &&
4422             ((state->acct_flags & acct_flags) == 0))
4423                 return False;
4424
4425         result->acct_flags = acct_flags;
4426         result->account_name = "";
4427         result->fullname = "";
4428         result->description = "";
4429
4430         vals = ldap_get_values(ld, entry, "uid");
4431         if ((vals == NULL) || (vals[0] == NULL)) {
4432                 DEBUG(5, ("\"uid\" not found\n"));
4433                 return False;
4434         }
4435         if (!pull_utf8_talloc(mem_ctx,
4436                               CONST_DISCARD(char **, &result->account_name),
4437                               vals[0], &converted_size))
4438         {
4439                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4440                          strerror(errno)));
4441         }
4442
4443         ldap_value_free(vals);
4444
4445         vals = ldap_get_values(ld, entry, "displayName");
4446         if ((vals == NULL) || (vals[0] == NULL))
4447                 DEBUG(8, ("\"displayName\" not found\n"));
4448         else if (!pull_utf8_talloc(mem_ctx,
4449                                    CONST_DISCARD(char **, &result->fullname),
4450                                    vals[0], &converted_size))
4451         {
4452                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4453                          strerror(errno)));
4454         }
4455
4456         ldap_value_free(vals);
4457
4458         vals = ldap_get_values(ld, entry, "description");
4459         if ((vals == NULL) || (vals[0] == NULL))
4460                 DEBUG(8, ("\"description\" not found\n"));
4461         else if (!pull_utf8_talloc(mem_ctx,
4462                                    CONST_DISCARD(char **, &result->description),
4463                                    vals[0], &converted_size))
4464         {
4465                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4466                          strerror(errno)));
4467         }
4468
4469         ldap_value_free(vals);
4470
4471         if ((result->account_name == NULL) ||
4472             (result->fullname == NULL) ||
4473             (result->description == NULL)) {
4474                 DEBUG(0, ("talloc failed\n"));
4475                 return False;
4476         }
4477
4478         vals = ldap_get_values(ld, entry, "sambaSid");
4479         if ((vals == NULL) || (vals[0] == NULL)) {
4480                 DEBUG(0, ("\"objectSid\" not found\n"));
4481                 return False;
4482         }
4483
4484         if (!string_to_sid(&sid, vals[0])) {
4485                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4486                 ldap_value_free(vals);
4487                 return False;
4488         }
4489         ldap_value_free(vals);
4490
4491         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4492                 DEBUG(0, ("sid %s does not belong to our domain\n",
4493                           sid_string_dbg(&sid)));
4494                 return False;
4495         }
4496
4497         return True;
4498 }
4499
4500
4501 static bool ldapsam_search_users(struct pdb_methods *methods,
4502                                  struct pdb_search *search,
4503                                  uint32 acct_flags)
4504 {
4505         struct ldapsam_privates *ldap_state =
4506                 (struct ldapsam_privates *)methods->private_data;
4507         struct ldap_search_state *state;
4508
4509         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4510         if (state == NULL) {
4511                 DEBUG(0, ("talloc failed\n"));
4512                 return False;
4513         }
4514
4515         state->connection = ldap_state->smbldap_state;
4516
4517         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4518                 state->base = lp_ldap_user_suffix();
4519         else if ((acct_flags != 0) &&
4520                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4521                 state->base = lp_ldap_machine_suffix();
4522         else
4523                 state->base = lp_ldap_suffix();
4524
4525         state->acct_flags = acct_flags;
4526         state->base = talloc_strdup(search->mem_ctx, state->base);
4527         state->scope = LDAP_SCOPE_SUBTREE;
4528         state->filter = get_ldap_filter(search->mem_ctx, "*");
4529         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4530                                     "displayName", "description",
4531                                     "sambaAcctFlags", NULL);
4532         state->attrsonly = 0;
4533         state->pagedresults_cookie = NULL;
4534         state->entries = NULL;
4535         state->ldap2displayentry = ldapuser2displayentry;
4536
4537         if ((state->filter == NULL) || (state->attrs == NULL)) {
4538                 DEBUG(0, ("talloc failed\n"));
4539                 return False;
4540         }
4541
4542         search->private_data = state;
4543         search->next_entry = ldapsam_search_next_entry;
4544         search->search_end = ldapsam_search_end;
4545
4546         return ldapsam_search_firstpage(search);
4547 }
4548
4549 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4550                                    TALLOC_CTX *mem_ctx,
4551                                    LDAP *ld, LDAPMessage *entry,
4552                                    struct samr_displayentry *result)
4553 {
4554         char **vals;
4555         size_t converted_size;
4556         DOM_SID sid;
4557         uint16 group_type;
4558
4559         result->account_name = "";
4560         result->fullname = "";
4561         result->description = "";
4562
4563
4564         vals = ldap_get_values(ld, entry, "sambaGroupType");
4565         if ((vals == NULL) || (vals[0] == NULL)) {
4566                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4567                 if (vals != NULL) {
4568                         ldap_value_free(vals);
4569                 }
4570                 return False;
4571         }
4572
4573         group_type = atoi(vals[0]);
4574
4575         if ((state->group_type != 0) &&
4576             ((state->group_type != group_type))) {
4577                 ldap_value_free(vals);
4578                 return False;
4579         }
4580
4581         ldap_value_free(vals);
4582
4583         /* display name is the NT group name */
4584
4585         vals = ldap_get_values(ld, entry, "displayName");
4586         if ((vals == NULL) || (vals[0] == NULL)) {
4587                 DEBUG(8, ("\"displayName\" not found\n"));
4588
4589                 /* fallback to the 'cn' attribute */
4590                 vals = ldap_get_values(ld, entry, "cn");
4591                 if ((vals == NULL) || (vals[0] == NULL)) {
4592                         DEBUG(5, ("\"cn\" not found\n"));
4593                         return False;
4594                 }
4595                 if (!pull_utf8_talloc(mem_ctx,
4596                                       CONST_DISCARD(char **,
4597                                                     &result->account_name),
4598                                       vals[0], &converted_size))
4599                 {
4600                         DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc "
4601                                   "failed: %s", strerror(errno)));
4602                 }
4603         }
4604         else if (!pull_utf8_talloc(mem_ctx,
4605                                    CONST_DISCARD(char **,
4606                                                  &result->account_name),
4607                                    vals[0], &converted_size))
4608         {
4609                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4610                           strerror(errno)));
4611         }
4612
4613         ldap_value_free(vals);
4614
4615         vals = ldap_get_values(ld, entry, "description");
4616         if ((vals == NULL) || (vals[0] == NULL))
4617                 DEBUG(8, ("\"description\" not found\n"));
4618         else if (!pull_utf8_talloc(mem_ctx,
4619                                    CONST_DISCARD(char **, &result->description),
4620                                    vals[0], &converted_size))
4621         {
4622                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4623                           strerror(errno)));
4624         }
4625         ldap_value_free(vals);
4626
4627         if ((result->account_name == NULL) ||
4628             (result->fullname == NULL) ||
4629             (result->description == NULL)) {
4630                 DEBUG(0, ("talloc failed\n"));
4631                 return False;
4632         }
4633
4634         vals = ldap_get_values(ld, entry, "sambaSid");
4635         if ((vals == NULL) || (vals[0] == NULL)) {
4636                 DEBUG(0, ("\"objectSid\" not found\n"));
4637                 if (vals != NULL) {
4638                         ldap_value_free(vals);
4639                 }
4640                 return False;
4641         }
4642
4643         if (!string_to_sid(&sid, vals[0])) {
4644                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4645                 return False;
4646         }
4647
4648         ldap_value_free(vals);
4649
4650         switch (group_type) {
4651                 case SID_NAME_DOM_GRP:
4652                 case SID_NAME_ALIAS:
4653
4654                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4655                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4656                         {
4657                                 DEBUG(0, ("%s is not in our domain\n",
4658                                           sid_string_dbg(&sid)));
4659                                 return False;
4660                         }
4661                         break;
4662
4663                 default:
4664                         DEBUG(0,("unkown group type: %d\n", group_type));
4665                         return False;
4666         }
4667
4668         result->acct_flags = 0;
4669
4670         return True;
4671 }
4672
4673 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4674                                      struct pdb_search *search,
4675                                      const DOM_SID *sid,
4676                                      enum lsa_SidType type)
4677 {
4678         struct ldapsam_privates *ldap_state =
4679                 (struct ldapsam_privates *)methods->private_data;
4680         struct ldap_search_state *state;
4681         fstring tmp;
4682
4683         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4684         if (state == NULL) {
4685                 DEBUG(0, ("talloc failed\n"));
4686                 return False;
4687         }
4688
4689         state->connection = ldap_state->smbldap_state;
4690
4691         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4692         state->connection = ldap_state->smbldap_state;
4693         state->scope = LDAP_SCOPE_SUBTREE;
4694         state->filter = talloc_asprintf(search->mem_ctx,
4695                                         "(&(objectclass=%s)"
4696                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4697                                          LDAP_OBJ_GROUPMAP,
4698                                          type, sid_to_fstring(tmp, sid));
4699         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4700                                     "displayName", "description",
4701                                     "sambaGroupType", NULL);
4702         state->attrsonly = 0;
4703         state->pagedresults_cookie = NULL;
4704         state->entries = NULL;
4705         state->group_type = type;
4706         state->ldap2displayentry = ldapgroup2displayentry;
4707
4708         if ((state->filter == NULL) || (state->attrs == NULL)) {
4709                 DEBUG(0, ("talloc failed\n"));
4710                 return False;
4711         }
4712
4713         search->private_data = state;
4714         search->next_entry = ldapsam_search_next_entry;
4715         search->search_end = ldapsam_search_end;
4716
4717         return ldapsam_search_firstpage(search);
4718 }
4719
4720 static bool ldapsam_search_groups(struct pdb_methods *methods,
4721                                   struct pdb_search *search)
4722 {
4723         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4724 }
4725
4726 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4727                                    struct pdb_search *search,
4728                                    const DOM_SID *sid)
4729 {
4730         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4731 }
4732
4733 static bool ldapsam_rid_algorithm(struct pdb_methods *methods)
4734 {
4735         return False;
4736 }
4737
4738 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4739                                     uint32 *rid)
4740 {
4741         struct smbldap_state *smbldap_state = priv->smbldap_state;
4742
4743         LDAPMessage *result = NULL;
4744         LDAPMessage *entry = NULL;
4745         LDAPMod **mods = NULL;
4746         NTSTATUS status;
4747         char *value;
4748         int rc;
4749         uint32 nextRid = 0;
4750         const char *dn;
4751
4752         TALLOC_CTX *mem_ctx;
4753
4754         mem_ctx = talloc_new(NULL);
4755         if (mem_ctx == NULL) {
4756                 DEBUG(0, ("talloc_new failed\n"));
4757                 return NT_STATUS_NO_MEMORY;
4758         }
4759
4760         status = smbldap_search_domain_info(smbldap_state, &result,
4761                                             get_global_sam_name(), False);
4762         if (!NT_STATUS_IS_OK(status)) {
4763                 DEBUG(3, ("Could not get domain info: %s\n",
4764                           nt_errstr(status)));
4765                 goto done;
4766         }
4767
4768         talloc_autofree_ldapmsg(mem_ctx, result);
4769
4770         entry = ldap_first_entry(priv2ld(priv), result);
4771         if (entry == NULL) {
4772                 DEBUG(0, ("Could not get domain info entry\n"));
4773                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4774                 goto done;
4775         }
4776
4777         /* Find the largest of the three attributes "sambaNextRid",
4778            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4779            concept of differentiating between user and group rids, and will
4780            use only "sambaNextRid" in the future. But for compatibility
4781            reasons I look if others have chosen different strategies -- VL */
4782
4783         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4784                                                 "sambaNextRid", mem_ctx);
4785         if (value != NULL) {
4786                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4787                 nextRid = MAX(nextRid, tmp);
4788         }
4789
4790         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4791                                                 "sambaNextUserRid", mem_ctx);
4792         if (value != NULL) {
4793                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4794                 nextRid = MAX(nextRid, tmp);
4795         }
4796
4797         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4798                                                 "sambaNextGroupRid", mem_ctx);
4799         if (value != NULL) {
4800                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4801                 nextRid = MAX(nextRid, tmp);
4802         }
4803
4804         if (nextRid == 0) {
4805                 nextRid = BASE_RID-1;
4806         }
4807
4808         nextRid += 1;
4809
4810         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4811                          talloc_asprintf(mem_ctx, "%d", nextRid));
4812         talloc_autofree_ldapmod(mem_ctx, mods);
4813
4814         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4815                 status = NT_STATUS_NO_MEMORY;
4816                 goto done;
4817         }
4818
4819         rc = smbldap_modify(smbldap_state, dn, mods);
4820
4821         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4822          * please retry" */
4823
4824         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4825
4826  done:
4827         if (NT_STATUS_IS_OK(status)) {
4828                 *rid = nextRid;
4829         }
4830
4831         TALLOC_FREE(mem_ctx);
4832         return status;
4833 }
4834
4835 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4836 {
4837         int i;
4838
4839         for (i=0; i<10; i++) {
4840                 NTSTATUS result = ldapsam_get_new_rid(
4841                         (struct ldapsam_privates *)methods->private_data, rid);
4842                 if (NT_STATUS_IS_OK(result)) {
4843                         return result;
4844                 }
4845
4846                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4847                         return result;
4848                 }
4849
4850                 /* The ldap update failed (maybe a race condition), retry */
4851         }
4852
4853         /* Tried 10 times, fail. */
4854         return NT_STATUS_ACCESS_DENIED;
4855 }
4856
4857 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4858 {
4859         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4860         return NT_STATUS_IS_OK(result) ? True : False;
4861 }
4862
4863 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
4864                               const DOM_SID *sid,
4865                               union unid_t *id, enum lsa_SidType *type)
4866 {
4867         struct ldapsam_privates *priv =
4868                 (struct ldapsam_privates *)methods->private_data;
4869         char *filter;
4870         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4871                                 NULL };
4872         LDAPMessage *result = NULL;
4873         LDAPMessage *entry = NULL;
4874         bool ret = False;
4875         char *value;
4876         int rc;
4877
4878         TALLOC_CTX *mem_ctx;
4879
4880         mem_ctx = talloc_new(NULL);
4881         if (mem_ctx == NULL) {
4882                 DEBUG(0, ("talloc_new failed\n"));
4883                 return False;
4884         }
4885
4886         filter = talloc_asprintf(mem_ctx,
4887                                  "(&(sambaSid=%s)"
4888                                  "(|(objectClass=%s)(objectClass=%s)))",
4889                                  sid_string_talloc(mem_ctx, sid),
4890                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4891         if (filter == NULL) {
4892                 DEBUG(5, ("talloc_asprintf failed\n"));
4893                 goto done;
4894         }
4895
4896         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4897                                    attrs, &result);
4898         if (rc != LDAP_SUCCESS) {
4899                 goto done;
4900         }
4901         talloc_autofree_ldapmsg(mem_ctx, result);
4902
4903         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4904                 DEBUG(10, ("Got %d entries, expected one\n",
4905                            ldap_count_entries(priv2ld(priv), result)));
4906                 goto done;
4907         }
4908
4909         entry = ldap_first_entry(priv2ld(priv), result);
4910
4911         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4912                                                 "sambaGroupType", mem_ctx);
4913
4914         if (value != NULL) {
4915                 const char *gid_str;
4916                 /* It's a group */
4917
4918                 gid_str = smbldap_talloc_single_attribute(
4919                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4920                 if (gid_str == NULL) {
4921                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4922                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4923                                                     entry)));
4924                         goto done;
4925                 }
4926
4927                 id->gid = strtoul(gid_str, NULL, 10);
4928                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4929                 ret = True;
4930                 goto done;
4931         }
4932
4933         /* It must be a user */
4934
4935         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4936                                                 "uidNumber", mem_ctx);
4937         if (value == NULL) {
4938                 DEBUG(1, ("Could not find uidNumber in %s\n",
4939                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4940                 goto done;
4941         }
4942
4943         id->uid = strtoul(value, NULL, 10);
4944         *type = SID_NAME_USER;
4945
4946         ret = True;
4947  done:
4948         TALLOC_FREE(mem_ctx);
4949         return ret;
4950 }
4951
4952 /*
4953  * The following functions is called only if
4954  * ldapsam:trusted and ldapsam:editposix are
4955  * set to true
4956  */
4957
4958 /*
4959  * ldapsam_create_user creates a new
4960  * posixAccount and sambaSamAccount object
4961  * in the ldap users subtree
4962  *
4963  * The uid is allocated by winbindd.
4964  */
4965
4966 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
4967                                     TALLOC_CTX *tmp_ctx, const char *name,
4968                                     uint32 acb_info, uint32 *rid)
4969 {
4970         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4971         LDAPMessage *entry = NULL;
4972         LDAPMessage *result = NULL;
4973         uint32 num_result;
4974         bool is_machine = False;
4975         bool add_posix = False;
4976         LDAPMod **mods = NULL;
4977         struct samu *user;
4978         char *filter;
4979         char *username;
4980         char *homedir;
4981         char *gidstr;
4982         char *uidstr;
4983         char *shell;
4984         const char *dn = NULL;
4985         DOM_SID group_sid;
4986         DOM_SID user_sid;
4987         gid_t gid = -1;
4988         uid_t uid = -1;
4989         NTSTATUS ret;
4990         int rc;
4991
4992         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
4993               acb_info & ACB_WSTRUST ||
4994               acb_info & ACB_SVRTRUST ||
4995               acb_info & ACB_DOMTRUST) {
4996                 is_machine = True;
4997         }
4998
4999         username = escape_ldap_string_alloc(name);
5000         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
5001                                  username, LDAP_OBJ_POSIXACCOUNT);
5002         SAFE_FREE(username);
5003
5004         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5005         if (rc != LDAP_SUCCESS) {
5006                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
5007                 return NT_STATUS_ACCESS_DENIED;
5008         }
5009         talloc_autofree_ldapmsg(tmp_ctx, result);
5010
5011         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5012
5013         if (num_result > 1) {
5014                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
5015                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5016         }
5017
5018         if (num_result == 1) {
5019                 char *tmp;
5020                 /* check if it is just a posix account.
5021                  * or if there is a sid attached to this entry
5022                  */
5023
5024                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5025                 if (!entry) {
5026                         return NT_STATUS_UNSUCCESSFUL;
5027                 }
5028
5029                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5030                 if (tmp) {
5031                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5032                         return NT_STATUS_USER_EXISTS;
5033                 }
5034
5035                 /* it is just a posix account, retrieve the dn for later use */
5036                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5037                 if (!dn) {
5038                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5039                         return NT_STATUS_NO_MEMORY;
5040                 }
5041         }
5042
5043         if (num_result == 0) {
5044                 add_posix = True;
5045         }
5046
5047         /* Create the basic samu structure and generate the mods for the ldap commit */
5048         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5049                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5050                 return ret;
5051         }
5052
5053         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5054
5055         user = samu_new(tmp_ctx);
5056         if (!user) {
5057                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5058                 return NT_STATUS_NO_MEMORY;
5059         }
5060
5061         if (!pdb_set_username(user, name, PDB_SET)) {
5062                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5063                 return NT_STATUS_UNSUCCESSFUL;
5064         }
5065         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5066                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5067                 return NT_STATUS_UNSUCCESSFUL;
5068         }
5069         if (is_machine) {
5070                 if (acb_info & ACB_NORMAL) {
5071                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5072                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5073                                 return NT_STATUS_UNSUCCESSFUL;
5074                         }
5075                 } else {
5076                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5077                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5078                                 return NT_STATUS_UNSUCCESSFUL;
5079                         }
5080                 }
5081         } else {
5082                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5083                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5084                         return NT_STATUS_UNSUCCESSFUL;
5085                 }
5086         }
5087
5088         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5089                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5090                 return NT_STATUS_UNSUCCESSFUL;
5091         }
5092
5093         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
5094                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5095                 return NT_STATUS_UNSUCCESSFUL;
5096         }
5097
5098         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5099                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5100         }
5101         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5102
5103         if (add_posix) {
5104                 char *escape_name;
5105
5106                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5107
5108                 /* retrieve the Domain Users group gid */
5109                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
5110                     !sid_to_gid(&group_sid, &gid)) {
5111                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5112                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5113                 }
5114
5115                 /* lets allocate a new userid for this user */
5116                 if (!winbind_allocate_uid(&uid)) {
5117                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5118                         return NT_STATUS_UNSUCCESSFUL;
5119                 }
5120
5121
5122                 if (is_machine) {
5123                         /* TODO: choose a more appropriate default for machines */
5124                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5125                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5126                 } else {
5127                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5128                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5129                 }
5130                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
5131                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5132
5133                 escape_name = escape_rdn_val_string_alloc(name);
5134                 if (!escape_name) {
5135                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5136                         return NT_STATUS_NO_MEMORY;
5137                 }
5138
5139                 if (is_machine) {
5140                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5141                 } else {
5142                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5143                 }
5144
5145                 SAFE_FREE(escape_name);
5146
5147                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5148                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5149                         return NT_STATUS_NO_MEMORY;
5150                 }
5151
5152                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5153                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5154                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5155                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5156                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5157                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5158                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5159         }
5160
5161         talloc_autofree_ldapmod(tmp_ctx, mods);
5162
5163         if (add_posix) {
5164                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5165         } else {
5166                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5167         }
5168
5169         if (rc != LDAP_SUCCESS) {
5170                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5171                 return NT_STATUS_UNSUCCESSFUL;
5172         }
5173
5174         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5175
5176         flush_pwnam_cache();
5177
5178         return NT_STATUS_OK;
5179 }
5180
5181 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5182 {
5183         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5184         LDAPMessage *result = NULL;
5185         LDAPMessage *entry = NULL;
5186         int num_result;
5187         const char *dn;
5188         char *filter;
5189         int rc;
5190
5191         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5192
5193         filter = talloc_asprintf(tmp_ctx,
5194                                  "(&(uid=%s)"
5195                                  "(objectClass=%s)"
5196                                  "(objectClass=%s))",
5197                                  pdb_get_username(sam_acct),
5198                                  LDAP_OBJ_POSIXACCOUNT,
5199                                  LDAP_OBJ_SAMBASAMACCOUNT);
5200         if (filter == NULL) {
5201                 return NT_STATUS_NO_MEMORY;
5202         }
5203
5204         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5205         if (rc != LDAP_SUCCESS) {
5206                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5207                 return NT_STATUS_UNSUCCESSFUL;
5208         }
5209         talloc_autofree_ldapmsg(tmp_ctx, result);
5210
5211         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5212
5213         if (num_result == 0) {
5214                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5215                 return NT_STATUS_NO_SUCH_USER;
5216         }
5217
5218         if (num_result > 1) {
5219                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5220                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5221         }
5222
5223         entry = ldap_first_entry(priv2ld(ldap_state), result);
5224         if (!entry) {
5225                 return NT_STATUS_UNSUCCESSFUL;
5226         }
5227
5228         /* it is just a posix account, retrieve the dn for later use */
5229         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5230         if (!dn) {
5231                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5232                 return NT_STATUS_NO_MEMORY;
5233         }
5234
5235         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5236         if (rc != LDAP_SUCCESS) {
5237                 return NT_STATUS_UNSUCCESSFUL;
5238         }
5239
5240         flush_pwnam_cache();
5241
5242         return NT_STATUS_OK;
5243 }
5244
5245 /*
5246  * ldapsam_create_group creates a new
5247  * posixGroup and sambaGroupMapping object
5248  * in the ldap groups subtree
5249  *
5250  * The gid is allocated by winbindd.
5251  */
5252
5253 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5254                                          TALLOC_CTX *tmp_ctx,
5255                                          const char *name,
5256                                          uint32 *rid)
5257 {
5258         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5259         NTSTATUS ret;
5260         LDAPMessage *entry = NULL;
5261         LDAPMessage *result = NULL;
5262         uint32 num_result;
5263         bool is_new_entry = False;
5264         LDAPMod **mods = NULL;
5265         char *filter;
5266         char *groupsidstr;
5267         char *groupname;
5268         char *grouptype;
5269         char *gidstr;
5270         const char *dn = NULL;
5271         DOM_SID group_sid;
5272         gid_t gid = -1;
5273         int rc;
5274
5275         groupname = escape_ldap_string_alloc(name);
5276         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5277                                  groupname, LDAP_OBJ_POSIXGROUP);
5278         SAFE_FREE(groupname);
5279
5280         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5281         if (rc != LDAP_SUCCESS) {
5282                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5283                 return NT_STATUS_UNSUCCESSFUL;
5284         }
5285         talloc_autofree_ldapmsg(tmp_ctx, result);
5286
5287         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5288
5289         if (num_result > 1) {
5290                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5291                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5292         }
5293
5294         if (num_result == 1) {
5295                 char *tmp;
5296                 /* check if it is just a posix group.
5297                  * or if there is a sid attached to this entry
5298                  */
5299
5300                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5301                 if (!entry) {
5302                         return NT_STATUS_UNSUCCESSFUL;
5303                 }
5304
5305                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5306                 if (tmp) {
5307                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5308                         return NT_STATUS_GROUP_EXISTS;
5309                 }
5310
5311                 /* it is just a posix group, retrieve the gid and the dn for later use */
5312                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5313                 if (!tmp) {
5314                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5315                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5316                 }
5317
5318                 gid = strtoul(tmp, NULL, 10);
5319
5320                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5321                 if (!dn) {
5322                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5323                         return NT_STATUS_NO_MEMORY;
5324                 }
5325         }
5326
5327         if (num_result == 0) {
5328                 char *escape_name;
5329
5330                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5331
5332                 is_new_entry = True;
5333
5334                 /* lets allocate a new groupid for this group */
5335                 if (!winbind_allocate_gid(&gid)) {
5336                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5337                         return NT_STATUS_UNSUCCESSFUL;
5338                 }
5339
5340                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5341
5342                 escape_name = escape_rdn_val_string_alloc(name);
5343                 if (!escape_name) {
5344                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5345                         return NT_STATUS_NO_MEMORY;
5346                 }
5347
5348                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5349
5350                 SAFE_FREE(escape_name);
5351
5352                 if (!gidstr || !dn) {
5353                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5354                         return NT_STATUS_NO_MEMORY;
5355                 }
5356
5357                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5358                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5359                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5360         }
5361
5362         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5363                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5364                 return ret;
5365         }
5366
5367         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5368
5369         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5370                                                                &group_sid));
5371         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5372
5373         if (!groupsidstr || !grouptype) {
5374                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5375                 return NT_STATUS_NO_MEMORY;
5376         }
5377
5378         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5379         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5380         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5381         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5382         talloc_autofree_ldapmod(tmp_ctx, mods);
5383
5384         if (is_new_entry) {
5385                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5386 #if 0
5387                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5388                         /* This call may fail with rfc2307bis schema */
5389                         /* Retry adding a structural class */
5390                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5391                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5392                 }
5393 #endif
5394         } else {
5395                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5396         }
5397
5398         if (rc != LDAP_SUCCESS) {
5399                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5400                 return NT_STATUS_UNSUCCESSFUL;
5401         }
5402
5403         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5404
5405         return NT_STATUS_OK;
5406 }
5407
5408 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5409 {
5410         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5411         LDAPMessage *result = NULL;
5412         LDAPMessage *entry = NULL;
5413         int num_result;
5414         const char *dn;
5415         char *gidstr;
5416         char *filter;
5417         DOM_SID group_sid;
5418         int rc;
5419
5420         /* get the group sid */
5421         sid_compose(&group_sid, get_global_sam_sid(), rid);
5422
5423         filter = talloc_asprintf(tmp_ctx,
5424                                  "(&(sambaSID=%s)"
5425                                  "(objectClass=%s)"
5426                                  "(objectClass=%s))",
5427                                  sid_string_talloc(tmp_ctx, &group_sid),
5428                                  LDAP_OBJ_POSIXGROUP,
5429                                  LDAP_OBJ_GROUPMAP);
5430         if (filter == NULL) {
5431                 return NT_STATUS_NO_MEMORY;
5432         }
5433
5434         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5435         if (rc != LDAP_SUCCESS) {
5436                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5437                 return NT_STATUS_UNSUCCESSFUL;
5438         }
5439         talloc_autofree_ldapmsg(tmp_ctx, result);
5440
5441         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5442
5443         if (num_result == 0) {
5444                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5445                 return NT_STATUS_NO_SUCH_GROUP;
5446         }
5447
5448         if (num_result > 1) {
5449                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5450                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5451         }
5452
5453         entry = ldap_first_entry(priv2ld(ldap_state), result);
5454         if (!entry) {
5455                 return NT_STATUS_UNSUCCESSFUL;
5456         }
5457
5458         /* here it is, retrieve the dn for later use */
5459         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5460         if (!dn) {
5461                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5462                 return NT_STATUS_NO_MEMORY;
5463         }
5464
5465         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5466         if (!gidstr) {
5467                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5468                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5469         }
5470
5471         /* check no user have this group marked as primary group */
5472         filter = talloc_asprintf(tmp_ctx,
5473                                  "(&(gidNumber=%s)"
5474                                  "(objectClass=%s)"
5475                                  "(objectClass=%s))",
5476                                  gidstr,
5477                                  LDAP_OBJ_POSIXACCOUNT,
5478                                  LDAP_OBJ_SAMBASAMACCOUNT);
5479
5480         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5481         if (rc != LDAP_SUCCESS) {
5482                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5483                 return NT_STATUS_UNSUCCESSFUL;
5484         }
5485         talloc_autofree_ldapmsg(tmp_ctx, result);
5486
5487         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5488
5489         if (num_result != 0) {
5490                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5491                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5492         }
5493
5494         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5495         if (rc != LDAP_SUCCESS) {
5496                 return NT_STATUS_UNSUCCESSFUL;
5497         }
5498
5499         return NT_STATUS_OK;
5500 }
5501
5502 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5503                                         TALLOC_CTX *tmp_ctx,
5504                                         uint32 group_rid,
5505                                         uint32 member_rid,
5506                                         int modop)
5507 {
5508         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5509         LDAPMessage *entry = NULL;
5510         LDAPMessage *result = NULL;
5511         uint32 num_result;
5512         LDAPMod **mods = NULL;
5513         char *filter;
5514         char *uidstr;
5515         const char *dn = NULL;
5516         DOM_SID group_sid;
5517         DOM_SID member_sid;
5518         int rc;
5519
5520         switch (modop) {
5521         case LDAP_MOD_ADD:
5522                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5523                 break;
5524         case LDAP_MOD_DELETE:
5525                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5526                 break;
5527         default:
5528                 return NT_STATUS_UNSUCCESSFUL;
5529         }
5530
5531         /* get member sid  */
5532         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5533
5534         /* get the group sid */
5535         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5536
5537         filter = talloc_asprintf(tmp_ctx,
5538                                  "(&(sambaSID=%s)"
5539                                  "(objectClass=%s)"
5540                                  "(objectClass=%s))",
5541                                  sid_string_talloc(tmp_ctx, &member_sid),
5542                                  LDAP_OBJ_POSIXACCOUNT,
5543                                  LDAP_OBJ_SAMBASAMACCOUNT);
5544         if (filter == NULL) {
5545                 return NT_STATUS_NO_MEMORY;
5546         }
5547
5548         /* get the member uid */
5549         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5550         if (rc != LDAP_SUCCESS) {
5551                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5552                 return NT_STATUS_UNSUCCESSFUL;
5553         }
5554         talloc_autofree_ldapmsg(tmp_ctx, result);
5555
5556         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5557
5558         if (num_result == 0) {
5559                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5560                 return NT_STATUS_NO_SUCH_MEMBER;
5561         }
5562
5563         if (num_result > 1) {
5564                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5565                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5566         }
5567
5568         entry = ldap_first_entry(priv2ld(ldap_state), result);
5569         if (!entry) {
5570                 return NT_STATUS_UNSUCCESSFUL;
5571         }
5572
5573         if (modop == LDAP_MOD_DELETE) {
5574                 /* check if we are trying to remove the member from his primary group */
5575                 char *gidstr;
5576                 gid_t user_gid, group_gid;
5577
5578                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5579                 if (!gidstr) {
5580                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5581                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5582                 }
5583
5584                 user_gid = strtoul(gidstr, NULL, 10);
5585
5586                 if (!sid_to_gid(&group_sid, &group_gid)) {
5587                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5588                         return NT_STATUS_UNSUCCESSFUL;
5589                 }
5590
5591                 if (user_gid == group_gid) {
5592                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5593                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5594                 }
5595         }
5596
5597         /* here it is, retrieve the uid for later use */
5598         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5599         if (!uidstr) {
5600                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5601                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5602         }
5603
5604         filter = talloc_asprintf(tmp_ctx,
5605                                  "(&(sambaSID=%s)"
5606                                  "(objectClass=%s)"
5607                                  "(objectClass=%s))",
5608                                  sid_string_talloc(tmp_ctx, &group_sid),
5609                                  LDAP_OBJ_POSIXGROUP,
5610                                  LDAP_OBJ_GROUPMAP);
5611
5612         /* get the group */
5613         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5614         if (rc != LDAP_SUCCESS) {
5615                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5616                 return NT_STATUS_UNSUCCESSFUL;
5617         }
5618         talloc_autofree_ldapmsg(tmp_ctx, result);
5619
5620         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5621
5622         if (num_result == 0) {
5623                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5624                 return NT_STATUS_NO_SUCH_GROUP;
5625         }
5626
5627         if (num_result > 1) {
5628                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5629                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5630         }
5631
5632         entry = ldap_first_entry(priv2ld(ldap_state), result);
5633         if (!entry) {
5634                 return NT_STATUS_UNSUCCESSFUL;
5635         }
5636
5637         /* here it is, retrieve the dn for later use */
5638         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5639         if (!dn) {
5640                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5641                 return NT_STATUS_NO_MEMORY;
5642         }
5643
5644         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5645
5646         talloc_autofree_ldapmod(tmp_ctx, mods);
5647
5648         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5649         if (rc != LDAP_SUCCESS) {
5650                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5651                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5652                         return NT_STATUS_MEMBER_IN_GROUP;
5653                 }
5654                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5655                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5656                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5657                 }
5658                 return NT_STATUS_UNSUCCESSFUL;
5659         }
5660
5661         return NT_STATUS_OK;
5662 }
5663
5664 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5665                                      TALLOC_CTX *tmp_ctx,
5666                                      uint32 group_rid,
5667                                      uint32 member_rid)
5668 {
5669         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5670 }
5671 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5672                                      TALLOC_CTX *tmp_ctx,
5673                                      uint32 group_rid,
5674                                      uint32 member_rid)
5675 {
5676         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5677 }
5678
5679 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5680                                           TALLOC_CTX *mem_ctx,
5681                                           struct samu *sampass)
5682 {
5683         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5684         LDAPMessage *entry = NULL;
5685         LDAPMessage *result = NULL;
5686         uint32 num_result;
5687         LDAPMod **mods = NULL;
5688         char *filter;
5689         char *escape_username;
5690         char *gidstr;
5691         const char *dn = NULL;
5692         gid_t gid;
5693         int rc;
5694
5695         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5696
5697         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5698                 DEBUG(0,("ldapsam_set_primary_group: failed to retrieve gid from user's group SID!\n"));
5699                 return NT_STATUS_UNSUCCESSFUL;
5700         }
5701         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5702         if (!gidstr) {
5703                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5704                 return NT_STATUS_NO_MEMORY;
5705         }
5706
5707         escape_username = escape_ldap_string_alloc(pdb_get_username(sampass));
5708         if (escape_username== NULL) {
5709                 return NT_STATUS_NO_MEMORY;
5710         }
5711
5712         filter = talloc_asprintf(mem_ctx,
5713                                  "(&(uid=%s)"
5714                                  "(objectClass=%s)"
5715                                  "(objectClass=%s))",
5716                                  escape_username,
5717                                  LDAP_OBJ_POSIXACCOUNT,
5718                                  LDAP_OBJ_SAMBASAMACCOUNT);
5719
5720         SAFE_FREE(escape_username);
5721
5722         if (filter == NULL) {
5723                 return NT_STATUS_NO_MEMORY;
5724         }
5725
5726         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5727         if (rc != LDAP_SUCCESS) {
5728                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5729                 return NT_STATUS_UNSUCCESSFUL;
5730         }
5731         talloc_autofree_ldapmsg(mem_ctx, result);
5732
5733         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5734
5735         if (num_result == 0) {
5736                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5737                 return NT_STATUS_NO_SUCH_USER;
5738         }
5739
5740         if (num_result > 1) {
5741                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5742                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5743         }
5744
5745         entry = ldap_first_entry(priv2ld(ldap_state), result);
5746         if (!entry) {
5747                 return NT_STATUS_UNSUCCESSFUL;
5748         }
5749
5750         /* retrieve the dn for later use */
5751         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5752         if (!dn) {
5753                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5754                 return NT_STATUS_NO_MEMORY;
5755         }
5756
5757         /* remove the old one, and add the new one, this way we do not risk races */
5758         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5759
5760         if (mods == NULL) {
5761                 return NT_STATUS_OK;
5762         }
5763
5764         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5765
5766         if (rc != LDAP_SUCCESS) {
5767                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5768                          pdb_get_username(sampass), gidstr));
5769                 return NT_STATUS_UNSUCCESSFUL;
5770         }
5771
5772         flush_pwnam_cache();
5773
5774         return NT_STATUS_OK;
5775 }
5776
5777
5778 /**********************************************************************
5779  trusted domains functions
5780  *********************************************************************/
5781
5782 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
5783                            const char *domain)
5784 {
5785         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
5786                                ldap_state->domain_dn);
5787 }
5788
5789 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
5790                                   TALLOC_CTX *mem_ctx,
5791                                   const char *domain, LDAPMessage **entry)
5792 {
5793         int rc;
5794         char *filter;
5795         int scope = LDAP_SCOPE_SUBTREE;
5796         const char **attrs = NULL; /* NULL: get all attrs */
5797         int attrsonly = 0; /* 0: return values too */
5798         LDAPMessage *result = NULL;
5799         char *trusted_dn;
5800         uint32 num_result;
5801
5802         filter = talloc_asprintf(talloc_tos(),
5803                                  "(&(objectClass=%s)(sambaDomainName=%s))",
5804                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
5805
5806         trusted_dn = trusteddom_dn(ldap_state, domain);
5807         if (trusted_dn == NULL) {
5808                 return False;
5809         }
5810         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
5811                             filter, attrs, attrsonly, &result);
5812
5813         if (result != NULL) {
5814                 talloc_autofree_ldapmsg(mem_ctx, result);
5815         }
5816
5817         if (rc == LDAP_NO_SUCH_OBJECT) {
5818                 *entry = NULL;
5819                 return True;
5820         }
5821
5822         if (rc != LDAP_SUCCESS) {
5823                 return False;
5824         }
5825
5826         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5827
5828         if (num_result > 1) {
5829                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
5830                           "%s object for domain '%s'?!\n",
5831                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
5832                 return False;
5833         }
5834
5835         if (num_result == 0) {
5836                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
5837                           "%s object for domain %s.\n",
5838                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
5839                 *entry = NULL;
5840         } else {
5841                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
5842         }
5843
5844         return True;
5845 }
5846
5847 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
5848                                       const char *domain,
5849                                       char** pwd,
5850                                       DOM_SID *sid,
5851                                       time_t *pass_last_set_time)
5852 {
5853         struct ldapsam_privates *ldap_state =
5854                 (struct ldapsam_privates *)methods->private_data;
5855         LDAPMessage *entry = NULL;
5856
5857         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
5858
5859         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry) ||
5860             (entry == NULL))
5861         {
5862                 return False;
5863         }
5864
5865         /* password */
5866         if (pwd != NULL) {
5867                 char *pwd_str;
5868                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5869                                 entry, "sambaClearTextPassword", talloc_tos());
5870                 if (pwd_str == NULL) {
5871                         return False;
5872                 }
5873                 /* trusteddom_pw routines do not use talloc yet... */
5874                 *pwd = SMB_STRDUP(pwd_str);
5875                 if (*pwd == NULL) {
5876                         return False;
5877                 }
5878         }
5879
5880         /* last change time */
5881         if (pass_last_set_time != NULL) {
5882                 char *time_str;
5883                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5884                                 entry, "sambaPwdLastSet", talloc_tos());
5885                 if (time_str == NULL) {
5886                         return False;
5887                 }
5888                 *pass_last_set_time = (time_t)atol(time_str);
5889         }
5890
5891         /* domain sid */
5892         if (sid != NULL) {
5893                 char *sid_str;
5894                 DOM_SID *dom_sid;
5895                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5896                                                           entry, "sambaSID",
5897                                                           talloc_tos());
5898                 if (sid_str == NULL) {
5899                         return False;
5900                 }
5901                 dom_sid = string_sid_talloc(talloc_tos(), sid_str);
5902                 if (dom_sid == NULL) {
5903                         return False;
5904                 }
5905                 sid_copy(sid, dom_sid);
5906         }
5907
5908         return True;
5909 }
5910
5911 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
5912                                       const char* domain,
5913                                       const char* pwd,
5914                                       const DOM_SID *sid)
5915 {
5916         struct ldapsam_privates *ldap_state =
5917                 (struct ldapsam_privates *)methods->private_data;
5918         LDAPMessage *entry = NULL;
5919         LDAPMod **mods = NULL;
5920         char *prev_pwd = NULL;
5921         char *trusted_dn = NULL;
5922         int rc;
5923
5924         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
5925
5926         /*
5927          * get the current entry (if there is one) in order to put the
5928          * current password into the previous password attribute
5929          */
5930         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
5931                 return False;
5932         }
5933
5934         mods = NULL;
5935         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
5936                          LDAP_OBJ_TRUSTDOM_PASSWORD);
5937         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
5938                          domain);
5939         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
5940                          sid_string_tos(sid));
5941         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
5942                          talloc_asprintf(talloc_tos(), "%li", time(NULL)));
5943         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5944                          "sambaClearTextPassword", pwd);
5945
5946         talloc_autofree_ldapmod(talloc_tos(), mods);
5947
5948         if (entry != NULL) {
5949                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5950                                 entry, "sambaClearTextPassword", talloc_tos());
5951                 if (prev_pwd != NULL) {
5952                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5953                                          "sambaPreviousClearTextPassword",
5954                                          prev_pwd);
5955                 }
5956         }
5957
5958         trusted_dn = trusteddom_dn(ldap_state, domain);
5959         if (trusted_dn == NULL) {
5960                 return False;
5961         }
5962         if (entry == NULL) {
5963                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
5964         } else {
5965                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
5966         }
5967
5968         if (rc != LDAP_SUCCESS) {
5969                 DEBUG(1, ("error writing trusted domain password!\n"));
5970                 return False;
5971         }
5972
5973         return True;
5974 }
5975
5976 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
5977                                       const char *domain)
5978 {
5979         int rc;
5980         struct ldapsam_privates *ldap_state =
5981                 (struct ldapsam_privates *)methods->private_data;
5982         LDAPMessage *entry = NULL;
5983         const char *trusted_dn;
5984
5985         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
5986                 return False;
5987         }
5988
5989         if (entry == NULL) {
5990                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
5991                           "%s\n", domain));
5992                 return True;
5993         }
5994
5995         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
5996                                        entry);
5997         if (trusted_dn == NULL) {
5998                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
5999                 return False;
6000         }
6001
6002         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
6003         if (rc != LDAP_SUCCESS) {
6004                 return False;
6005         }
6006
6007         return True;
6008 }
6009
6010 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
6011                                          TALLOC_CTX *mem_ctx,
6012                                          uint32 *num_domains,
6013                                          struct trustdom_info ***domains)
6014 {
6015         int rc;
6016         struct ldapsam_privates *ldap_state =
6017                 (struct ldapsam_privates *)methods->private_data;
6018         char *filter;
6019         int scope = LDAP_SCOPE_SUBTREE;
6020         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
6021         int attrsonly = 0; /* 0: return values too */
6022         LDAPMessage *result = NULL;
6023         LDAPMessage *entry = NULL;
6024
6025         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
6026                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
6027
6028         rc = smbldap_search(ldap_state->smbldap_state,
6029                             ldap_state->domain_dn,
6030                             scope,
6031                             filter,
6032                             attrs,
6033                             attrsonly,
6034                             &result);
6035
6036         if (result != NULL) {
6037                 talloc_autofree_ldapmsg(mem_ctx, result);
6038         }
6039
6040         if (rc != LDAP_SUCCESS) {
6041                 return NT_STATUS_UNSUCCESSFUL;
6042         }
6043
6044         *num_domains = 0;
6045         if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) {
6046                 DEBUG(1, ("talloc failed\n"));
6047                 return NT_STATUS_NO_MEMORY;
6048         }
6049
6050         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6051              entry != NULL;
6052              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6053         {
6054                 char *dom_name, *dom_sid_str;
6055                 struct trustdom_info *dom_info;
6056
6057                 dom_info = TALLOC_P(*domains, struct trustdom_info);
6058                 if (dom_info == NULL) {
6059                         DEBUG(1, ("talloc failed\n"));
6060                         return NT_STATUS_NO_MEMORY;
6061                 }
6062
6063                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6064                                                            entry,
6065                                                            "sambaDomainName",
6066                                                            talloc_tos());
6067                 if (dom_name == NULL) {
6068                         DEBUG(1, ("talloc failed\n"));
6069                         return NT_STATUS_NO_MEMORY;
6070                 }
6071                 dom_info->name = dom_name;
6072
6073                 dom_sid_str = smbldap_talloc_single_attribute(
6074                                         priv2ld(ldap_state), entry, "sambaSID",
6075                                         talloc_tos());
6076                 if (dom_sid_str == NULL) {
6077                         DEBUG(1, ("talloc failed\n"));
6078                         return NT_STATUS_NO_MEMORY;
6079                 }
6080                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6081                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6082                                   dom_sid_str));
6083                         return NT_STATUS_UNSUCCESSFUL;
6084                 }
6085
6086                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6087                              domains, num_domains);
6088
6089                 if (*domains == NULL) {
6090                         DEBUG(1, ("talloc failed\n"));
6091                         return NT_STATUS_NO_MEMORY;
6092                 }
6093         }
6094
6095         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6096         return NT_STATUS_OK;
6097 }
6098
6099
6100 /**********************************************************************
6101  Housekeeping
6102  *********************************************************************/
6103
6104 static void free_private_data(void **vp)
6105 {
6106         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6107
6108         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6109
6110         if ((*ldap_state)->result != NULL) {
6111                 ldap_msgfree((*ldap_state)->result);
6112                 (*ldap_state)->result = NULL;
6113         }
6114         if ((*ldap_state)->domain_dn != NULL) {
6115                 SAFE_FREE((*ldap_state)->domain_dn);
6116         }
6117
6118         *ldap_state = NULL;
6119
6120         /* No need to free any further, as it is talloc()ed */
6121 }
6122
6123 /*********************************************************************
6124  Intitalise the parts of the pdb_methods structure that are common to
6125  all pdb_ldap modes
6126 *********************************************************************/
6127
6128 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6129 {
6130         NTSTATUS nt_status;
6131         struct ldapsam_privates *ldap_state;
6132
6133         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6134                 return nt_status;
6135         }
6136
6137         (*pdb_method)->name = "ldapsam";
6138
6139         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6140         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6141         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6142         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6143         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6144         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6145
6146         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6147         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6148         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6149         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6150         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6151         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6152         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6153
6154         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6155         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6156
6157         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6158
6159         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
6160         (*pdb_method)->new_rid = ldapsam_new_rid;
6161
6162         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6163         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6164         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6165         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6166
6167         /* TODO: Setup private data and free */
6168
6169         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
6170                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6171                 return NT_STATUS_NO_MEMORY;
6172         }
6173
6174         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6175                                  location, &ldap_state->smbldap_state);
6176
6177         if ( !NT_STATUS_IS_OK(nt_status) ) {
6178                 return nt_status;
6179         }
6180
6181         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6182                 return NT_STATUS_NO_MEMORY;
6183         }
6184
6185         (*pdb_method)->private_data = ldap_state;
6186
6187         (*pdb_method)->free_private_data = free_private_data;
6188
6189         return NT_STATUS_OK;
6190 }
6191
6192 /**********************************************************************
6193  Initialise the 'compat' mode for pdb_ldap
6194  *********************************************************************/
6195
6196 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6197 {
6198         NTSTATUS nt_status;
6199         struct ldapsam_privates *ldap_state;
6200         char *uri = talloc_strdup( NULL, location );
6201
6202         trim_char( uri, '\"', '\"' );
6203         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6204         if ( uri )
6205                 TALLOC_FREE( uri );
6206
6207         if ( !NT_STATUS_IS_OK(nt_status) ) {
6208                 return nt_status;
6209         }
6210
6211         (*pdb_method)->name = "ldapsam_compat";
6212
6213         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6214         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6215
6216         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6217
6218         return NT_STATUS_OK;
6219 }
6220
6221 /**********************************************************************
6222  Initialise the normal mode for pdb_ldap
6223  *********************************************************************/
6224
6225 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6226 {
6227         NTSTATUS nt_status;
6228         struct ldapsam_privates *ldap_state = NULL;
6229         uint32 alg_rid_base;
6230         char *alg_rid_base_string = NULL;
6231         LDAPMessage *result = NULL;
6232         LDAPMessage *entry = NULL;
6233         DOM_SID ldap_domain_sid;
6234         DOM_SID secrets_domain_sid;
6235         char *domain_sid_string = NULL;
6236         char *dn = NULL;
6237         char *uri = talloc_strdup( NULL, location );
6238
6239         trim_char( uri, '\"', '\"' );
6240         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6241         if (uri) {
6242                 TALLOC_FREE(uri);
6243         }
6244
6245         if (!NT_STATUS_IS_OK(nt_status)) {
6246                 return nt_status;
6247         }
6248
6249         (*pdb_method)->name = "ldapsam";
6250
6251         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6252         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6253         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6254         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6255         (*pdb_method)->search_users = ldapsam_search_users;
6256         (*pdb_method)->search_groups = ldapsam_search_groups;
6257         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6258
6259         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6260                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6261                 (*pdb_method)->enum_group_memberships =
6262                         ldapsam_enum_group_memberships;
6263                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6264                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6265
6266                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6267                         (*pdb_method)->create_user = ldapsam_create_user;
6268                         (*pdb_method)->delete_user = ldapsam_delete_user;
6269                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6270                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6271                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6272                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6273                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6274                 }
6275         }
6276
6277         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6278         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6279
6280         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6281
6282         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6283                                                &result,
6284                                                ldap_state->domain_name, True);
6285
6286         if ( !NT_STATUS_IS_OK(nt_status) ) {
6287                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6288                           "info, nor add one to the domain\n"));
6289                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6290                              "will be unable to allocate new users/groups, "
6291                              "and will risk BDCs having inconsistant SIDs\n"));
6292                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6293                 return NT_STATUS_OK;
6294         }
6295
6296         /* Given that the above might fail, everything below this must be
6297          * optional */
6298
6299         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6300                                  result);
6301         if (!entry) {
6302                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6303                           "entry\n"));
6304                 ldap_msgfree(result);
6305                 return NT_STATUS_UNSUCCESSFUL;
6306         }
6307
6308         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
6309         if (!dn) {
6310                 ldap_msgfree(result);
6311                 return NT_STATUS_UNSUCCESSFUL;
6312         }
6313
6314         ldap_state->domain_dn = smb_xstrdup(dn);
6315         ldap_memfree(dn);
6316
6317         domain_sid_string = smbldap_talloc_single_attribute(
6318                     ldap_state->smbldap_state->ldap_struct,
6319                     entry,
6320                     get_userattr_key2string(ldap_state->schema_ver,
6321                                             LDAP_ATTR_USER_SID),
6322                     talloc_tos());
6323
6324         if (domain_sid_string) {
6325                 bool found_sid;
6326                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6327                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6328                                   "read as a valid SID\n", domain_sid_string));
6329                         ldap_msgfree(result);
6330                         TALLOC_FREE(domain_sid_string);
6331                         return NT_STATUS_INVALID_PARAMETER;
6332                 }
6333                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6334                                                      &secrets_domain_sid);
6335                 if (!found_sid || !sid_equal(&secrets_domain_sid,
6336                                              &ldap_domain_sid)) {
6337                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6338                                   "%s based on pdb_ldap results %s -> %s\n",
6339                                   ldap_state->domain_name,
6340                                   sid_string_dbg(&secrets_domain_sid),
6341                                   sid_string_dbg(&ldap_domain_sid)));
6342
6343                         /* reset secrets.tdb sid */
6344                         secrets_store_domain_sid(ldap_state->domain_name,
6345                                                  &ldap_domain_sid);
6346                         DEBUG(1, ("New global sam SID: %s\n",
6347                                   sid_string_dbg(get_global_sam_sid())));
6348                 }
6349                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6350                 TALLOC_FREE(domain_sid_string);
6351         }
6352
6353         alg_rid_base_string = smbldap_talloc_single_attribute(
6354                     ldap_state->smbldap_state->ldap_struct,
6355                     entry,
6356                     get_attr_key2string( dominfo_attr_list,
6357                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6358                     talloc_tos());
6359         if (alg_rid_base_string) {
6360                 alg_rid_base = (uint32)atol(alg_rid_base_string);
6361                 if (alg_rid_base != algorithmic_rid_base()) {
6362                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6363                                   "changed since the LDAP\n"
6364                                   "database was initialised.  Aborting. \n"));
6365                         ldap_msgfree(result);
6366                         TALLOC_FREE(alg_rid_base_string);
6367                         return NT_STATUS_UNSUCCESSFUL;
6368                 }
6369                 TALLOC_FREE(alg_rid_base_string);
6370         }
6371         ldap_msgfree(result);
6372
6373         return NT_STATUS_OK;
6374 }
6375
6376 NTSTATUS pdb_ldap_init(void)
6377 {
6378         NTSTATUS nt_status;
6379         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6380                 return nt_status;
6381
6382         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6383                 return nt_status;
6384
6385         /* Let pdb_nds register backends */
6386         pdb_nds_init();
6387
6388         return NT_STATUS_OK;
6389 }