source/passdb/pdb_ldap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau        1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9    Copyright (C) Simo Sorce                     2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 */
  25
  26 /* TODO:
  27 *  persistent connections: if using NSS LDAP, many connections are made
  28 *      however, using only one within Samba would be nice
  29 *
  30 *  Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
  31 *
  32 *  Other LDAP based login attributes: accountExpires, etc.
  33 *  (should be the domain of Samba proper, but the sam_password/struct samu
  34 *  structures don't have fields for some of these attributes)
  35 *
  36 *  SSL is done, but can't get the certificate based authentication to work
  37 *  against on my test platform (Linux 2.4, OpenLDAP 2.x)
  38 */
  39
  40 /* NOTE: this will NOT work against an Active Directory server
  41 *  due to the fact that the two password fields cannot be retrieved
  42 *  from a server; recommend using security = domain in this situation
  43 *  and/or winbind
  44 */
  45
  46 #include "includes.h"
  47
  48 #undef DBGC_CLASS
  49 #define DBGC_CLASS DBGC_PASSDB
  50
  51 #include <lber.h>
  52 #include <ldap.h>
  53
  54 /*
  55  * Work around versions of the LDAP client libs that don't have the OIDs
  56  * defined, or have them defined under the old name.
  57  * This functionality is really a factor of the server, not the client
  58  *
  59  */
  60
  61 #if defined(LDAP_EXOP_X_MODIFY_PASSWD) && !defined(LDAP_EXOP_MODIFY_PASSWD)
  62 #define LDAP_EXOP_MODIFY_PASSWD LDAP_EXOP_X_MODIFY_PASSWD
  63 #elif !defined(LDAP_EXOP_MODIFY_PASSWD)
  64 #define LDAP_EXOP_MODIFY_PASSWD "1.3.6.1.4.1.4203.1.11.1"
  65 #endif
  66
  67 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_ID) && !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  68 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID LDAP_EXOP_X_MODIFY_PASSWD_ID
  69 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  70 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID        ((ber_tag_t) 0x80U)
  71 #endif
  72
  73 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_NEW) && !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  74 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW LDAP_EXOP_X_MODIFY_PASSWD_NEW
  75 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  76 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW       ((ber_tag_t) 0x82U)
  77 #endif
  78
  79
  80 #include "smbldap.h"
  81
  82 /**********************************************************************
  83  Simple helper function to make stuff better readable
  84  **********************************************************************/
  85
  86 static LDAP *priv2ld(struct ldapsam_privates *priv)
  87 {
  88         return priv->smbldap_state->ldap_struct;
  89 }
  90
  91 /**********************************************************************
  92  Get the attribute name given a user schame version.
  93  **********************************************************************/
  94
  95 static const char* get_userattr_key2string( int schema_ver, int key )
  96 {
  97         switch ( schema_ver ) {
  98                 case SCHEMAVER_SAMBAACCOUNT:
  99                         return get_attr_key2string( attrib_map_v22, key );
 100
 101                 case SCHEMAVER_SAMBASAMACCOUNT:
 102                         return get_attr_key2string( attrib_map_v30, key );
 103
 104                 default:
 105                         DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
 106                         break;
 107         }
 108         return NULL;
 109 }
 110
 111 /**********************************************************************
 112  Return the list of attribute names given a user schema version.
 113 **********************************************************************/
 114
 115 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
 116 {
 117         switch ( schema_ver ) {
 118                 case SCHEMAVER_SAMBAACCOUNT:
 119                         return get_attr_list( mem_ctx, attrib_map_v22 );
 120
 121                 case SCHEMAVER_SAMBASAMACCOUNT:
 122                         return get_attr_list( mem_ctx, attrib_map_v30 );
 123                 default:
 124                         DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
 125                         break;
 126         }
 127
 128         return NULL;
 129 }
 130
 131 /**************************************************************************
 132  Return the list of attribute names to delete given a user schema version.
 133 **************************************************************************/
 134
 135 static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
 136                                               int schema_ver )
 137 {
 138         switch ( schema_ver ) {
 139                 case SCHEMAVER_SAMBAACCOUNT:
 140                         return get_attr_list( mem_ctx,
 141                                               attrib_map_to_delete_v22 );
 142
 143                 case SCHEMAVER_SAMBASAMACCOUNT:
 144                         return get_attr_list( mem_ctx,
 145                                               attrib_map_to_delete_v30 );
 146                 default:
 147                         DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
 148                         break;
 149         }
 150
 151         return NULL;
 152 }
 153
 154
 155 /*******************************************************************
 156  Generate the LDAP search filter for the objectclass based on the
 157  version of the schema we are using.
 158 ******************************************************************/
 159
 160 static const char* get_objclass_filter( int schema_ver )
 161 {
 162         fstring objclass_filter;
 163         char *result;
 164
 165         switch( schema_ver ) {
 166                 case SCHEMAVER_SAMBAACCOUNT:
 167                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 168                         break;
 169                 case SCHEMAVER_SAMBASAMACCOUNT:
 170                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 171                         break;
 172                 default:
 173                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 174                         objclass_filter[0] = '\0';
 175                         break;
 176         }
 177
 178         result = talloc_strdup(talloc_tos(), objclass_filter);
 179         SMB_ASSERT(result != NULL);
 180         return result;
 181 }
 182
 183 /*****************************************************************
 184  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 185 ******************************************************************/
 186
 187 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 188 {
 189         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 190         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 191         LDAPMessage *msg = NULL;
 192         LDAPMessage *entry = NULL;
 193         TALLOC_CTX *mem_ctx;
 194         char **values = NULL;
 195         int rc, num_result, num_values, rid;
 196         char *suffix = NULL;
 197         char *tok;
 198         const char *p;
 199         const char **attrs;
 200
 201         /* Unfortunatly there is no proper way to detect syncrepl-support in
 202          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 203          * but do not show up in the root-DSE yet. Neither we can query the
 204          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 205          * objectclass. Currently we require lp_ldap_suffix() to show up as
 206          * namingContext.  -  Guenther
 207          */
 208
 209         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 210                 return ntstatus;
 211         }
 212
 213         if (!seq_num) {
 214                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 215                 return ntstatus;
 216         }
 217
 218         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 219                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 220                          "as top-level namingContext\n", lp_ldap_suffix()));
 221                 return ntstatus;
 222         }
 223
 224         mem_ctx = talloc_init("ldapsam_get_seq_num");
 225
 226         if (mem_ctx == NULL)
 227                 return NT_STATUS_NO_MEMORY;
 228
 229         if ((attrs = TALLOC_ARRAY(mem_ctx, const char *, 2)) == NULL) {
 230                 ntstatus = NT_STATUS_NO_MEMORY;
 231                 goto done;
 232         }
 233
 234         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 235         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 236         if (rid > 0) {
 237
 238                 /* consumer syncreplCookie: */
 239                 /* csn=20050126161620Z#0000001#00#00000 */
 240                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 241                 attrs[1] = NULL;
 242                 suffix = talloc_asprintf(mem_ctx,
 243                                 "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 244                 if (!suffix) {
 245                         ntstatus = NT_STATUS_NO_MEMORY;
 246                         goto done;
 247                 }
 248         } else {
 249
 250                 /* provider contextCSN */
 251                 /* 20050126161620Z#000009#00#000000 */
 252                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 253                 attrs[1] = NULL;
 254                 suffix = talloc_asprintf(mem_ctx,
 255                                 "cn=ldapsync,%s", lp_ldap_suffix());
 256
 257                 if (!suffix) {
 258                         ntstatus = NT_STATUS_NO_MEMORY;
 259                         goto done;
 260                 }
 261         }
 262
 263         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 264                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 265
 266         if (rc != LDAP_SUCCESS) {
 267                 goto done;
 268         }
 269
 270         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 271         if (num_result != 1) {
 272                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 273                 goto done;
 274         }
 275
 276         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 277         if (entry == NULL) {
 278                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 279                 goto done;
 280         }
 281
 282         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 283         if (values == NULL) {
 284                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 285                 goto done;
 286         }
 287
 288         num_values = ldap_count_values(values);
 289         if (num_values == 0) {
 290                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 291                 goto done;
 292         }
 293
 294         p = values[0];
 295         if (!next_token_talloc(mem_ctx, &p, &tok, "#")) {
 296                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 297                 goto done;
 298         }
 299
 300         p = tok;
 301         if (!strncmp(p, "csn=", strlen("csn=")))
 302                 p += strlen("csn=");
 303
 304         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 305
 306         *seq_num = generalized_to_unix_time(p);
 307
 308         /* very basic sanity check */
 309         if (*seq_num <= 0) {
 310                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 311                         (int)*seq_num));
 312                 goto done;
 313         }
 314
 315         ntstatus = NT_STATUS_OK;
 316
 317  done:
 318         if (values != NULL)
 319                 ldap_value_free(values);
 320         if (msg != NULL)
 321                 ldap_msgfree(msg);
 322         if (mem_ctx)
 323                 talloc_destroy(mem_ctx);
 324
 325         return ntstatus;
 326 }
 327
 328 /*******************************************************************
 329  Run the search by name.
 330 ******************************************************************/
 331
 332 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 333                                           const char *user,
 334                                           LDAPMessage ** result,
 335                                           const char **attr)
 336 {
 337         char *filter = NULL;
 338         char *escape_user = escape_ldap_string_alloc(user);
 339         int ret = -1;
 340
 341         if (!escape_user) {
 342                 return LDAP_NO_MEMORY;
 343         }
 344
 345         /*
 346          * in the filter expression, replace %u with the real name
 347          * so in ldap filter, %u MUST exist :-)
 348          */
 349         filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
 350                 get_objclass_filter(ldap_state->schema_ver));
 351         if (!filter) {
 352                 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
1703                 if (!ldap_state->is_nds_ldap) {
1704
1705                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1706                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1707                                 DEBUG(2, ("ldap password change requested, but LDAP "
1708                                           "server does not support it -- ignoring\n"));
1709                                 return NT_STATUS_OK;
1710                         }
1711                 }
1712
1713                 if (push_utf8_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
1714                         return NT_STATUS_NO_MEMORY;
1715                 }
1716
1717                 if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
1718                         SAFE_FREE(utf8_password);
1719                         return NT_STATUS_NO_MEMORY;
1720                 }
1721
1722                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1723                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1724                         SAFE_FREE(utf8_password);
1725                         SAFE_FREE(utf8_dn);
1726                         return NT_STATUS_UNSUCCESSFUL;
1727                 }
1728
1729                 if ((ber_printf (ber, "{") < 0) ||
1730                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn) < 0) ||
1731                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password) < 0) ||
1732                     (ber_printf (ber, "n}") < 0)) {
1733                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a value <0\n"));
1734                        ber_free(ber,1);
1735                        SAFE_FREE(utf8_dn);
1736                        SAFE_FREE(utf8_password);
1737                        return NT_STATUS_UNSUCCESSFUL;
1738                 }
1739
1740                 if ((rc = ber_flatten (ber, &bv))<0) {
1741                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1742                         ber_free(ber,1);
1743                         SAFE_FREE(utf8_dn);
1744                         SAFE_FREE(utf8_password);
1745                         return NT_STATUS_UNSUCCESSFUL;
1746                 }
1747
1748                 SAFE_FREE(utf8_dn);
1749                 SAFE_FREE(utf8_password);
1750                 ber_free(ber, 1);
1751
1752                 if (!ldap_state->is_nds_ldap) {
1753                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1754                                                         LDAP_EXOP_MODIFY_PASSWD,
1755                                                         bv, NULL, NULL, &retoid,
1756                                                         &retdata);
1757                 } else {
1758                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1759                                                         pdb_get_plaintext_passwd(newpwd));
1760                 }
1761                 if (rc != LDAP_SUCCESS) {
1762                         char *ld_error = NULL;
1763
1764                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1765                                 DEBUG(3, ("Could not set userPassword "
1766                                           "attribute due to an objectClass "
1767                                           "violation -- ignoring\n"));
1768                                 ber_bvfree(bv);
1769                                 return NT_STATUS_OK;
1770                         }
1771
1772                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1773                                         &ld_error);
1774                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1775                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1776                         SAFE_FREE(ld_error);
1777                         ber_bvfree(bv);
1778 #if defined(LDAP_CONSTRAINT_VIOLATION)
1779                         if (rc == LDAP_CONSTRAINT_VIOLATION)
1780                                 return NT_STATUS_PASSWORD_RESTRICTION;
1781 #endif
1782                         return NT_STATUS_UNSUCCESSFUL;
1783                 } else {
1784                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1785 #ifdef DEBUG_PASSWORD
1786                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1787 #endif
1788                         if (retdata)
1789                                 ber_bvfree(retdata);
1790                         if (retoid)
1791                                 ldap_memfree(retoid);
1792                 }
1793                 ber_bvfree(bv);
1794         }
1795         return NT_STATUS_OK;
1796 }
1797
1798 /**********************************************************************
1799  Delete entry from LDAP for username.
1800 *********************************************************************/
1801
1802 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1803                                            struct samu * sam_acct)
1804 {
1805         struct ldapsam_privates *priv =
1806                 (struct ldapsam_privates *)my_methods->private_data;
1807         const char *sname;
1808         int rc;
1809         LDAPMessage *msg, *entry;
1810         NTSTATUS result = NT_STATUS_NO_MEMORY;
1811         const char **attr_list;
1812         TALLOC_CTX *mem_ctx;
1813
1814         if (!sam_acct) {
1815                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1816                 return NT_STATUS_INVALID_PARAMETER;
1817         }
1818
1819         sname = pdb_get_username(sam_acct);
1820
1821         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1822                   "LDAP.\n", sname));
1823
1824         mem_ctx = talloc_new(NULL);
1825         if (mem_ctx == NULL) {
1826                 DEBUG(0, ("talloc_new failed\n"));
1827                 goto done;
1828         }
1829
1830         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1831         if (attr_list == NULL) {
1832                 goto done;
1833         }
1834
1835         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1836
1837         if ((rc != LDAP_SUCCESS) ||
1838             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1839             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1840                 DEBUG(5, ("Could not find user %s\n", sname));
1841                 result = NT_STATUS_NO_SUCH_USER;
1842                 goto done;
1843         }
1844
1845         rc = ldapsam_delete_entry(
1846                 priv, mem_ctx, entry,
1847                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1848                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1849                 attr_list);
1850
1851         result = (rc == LDAP_SUCCESS) ?
1852                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1853
1854  done:
1855         TALLOC_FREE(mem_ctx);
1856         return result;
1857 }
1858
1859 /**********************************************************************
1860  Helper function to determine for update_sam_account whether
1861  we need LDAP modification.
1862 *********************************************************************/
1863
1864 static bool element_is_changed(const struct samu *sampass,
1865                                enum pdb_elements element)
1866 {
1867         return IS_SAM_CHANGED(sampass, element);
1868 }
1869
1870 /**********************************************************************
1871  Update struct samu.
1872 *********************************************************************/
1873
1874 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1875 {
1876         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1877         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1878         int rc = 0;
1879         char *dn;
1880         LDAPMessage *result = NULL;
1881         LDAPMessage *entry = NULL;
1882         LDAPMod **mods = NULL;
1883         const char **attr_list;
1884
1885         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1886         if (!result) {
1887                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1888                 if (pdb_get_username(newpwd) == NULL) {
1889                         return NT_STATUS_INVALID_PARAMETER;
1890                 }
1891                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1892                 TALLOC_FREE( attr_list );
1893                 if (rc != LDAP_SUCCESS) {
1894                         return NT_STATUS_UNSUCCESSFUL;
1895                 }
1896                 pdb_set_backend_private_data(newpwd, result, NULL,
1897                                              my_methods, PDB_CHANGED);
1898                 talloc_autofree_ldapmsg(newpwd, result);
1899         }
1900
1901         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1902                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1903                 return NT_STATUS_UNSUCCESSFUL;
1904         }
1905
1906         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1907         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
1908         if (!dn) {
1909                 return NT_STATUS_UNSUCCESSFUL;
1910         }
1911
1912         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1913
1914         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
1915                                 element_is_changed)) {
1916                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
1917                 SAFE_FREE(dn);
1918                 if (mods != NULL)
1919                         ldap_mods_free(mods,True);
1920                 return NT_STATUS_UNSUCCESSFUL;
1921         }
1922
1923         if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
1924             && (mods == NULL)) {
1925                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
1926                          pdb_get_username(newpwd)));
1927                 SAFE_FREE(dn);
1928                 return NT_STATUS_OK;
1929         }
1930
1931         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
1932
1933         if (mods != NULL) {
1934                 ldap_mods_free(mods,True);
1935         }
1936
1937         SAFE_FREE(dn);
1938
1939         /*
1940          * We need to set the backend private data to NULL here. For example
1941          * setuserinfo level 25 does a pdb_update_sam_account twice on the
1942          * same one, and with the explicit delete / add logic for attribute
1943          * values the second time we would use the wrong "old" value which
1944          * does not exist in LDAP anymore. Thus the LDAP server would refuse
1945          * the update.
1946          * The existing LDAPMessage is still being auto-freed by the
1947          * destructor.
1948          */
1949         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
1950                                      PDB_CHANGED);
1951
1952         if (!NT_STATUS_IS_OK(ret)) {
1953                 return ret;
1954         }
1955
1956         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1957                   pdb_get_username(newpwd)));
1958         return NT_STATUS_OK;
1959 }
1960
1961 /***************************************************************************
1962  Renames a struct samu
1963  - The "rename user script" has full responsibility for changing everything
1964 ***************************************************************************/
1965
1966 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
1967                                            struct samu *old_acct,
1968                                            const char *newname)
1969 {
1970         const char *oldname;
1971         int rc;
1972         char *rename_script = NULL;
1973         fstring oldname_lower, newname_lower;
1974
1975         if (!old_acct) {
1976                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
1977                 return NT_STATUS_INVALID_PARAMETER;
1978         }
1979         if (!newname) {
1980                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
1981                 return NT_STATUS_INVALID_PARAMETER;
1982         }
1983
1984         oldname = pdb_get_username(old_acct);
1985
1986         /* rename the posix user */
1987         rename_script = SMB_STRDUP(lp_renameuser_script());
1988         if (rename_script == NULL) {
1989                 return NT_STATUS_NO_MEMORY;
1990         }
1991
1992         if (!(*rename_script)) {
1993                 SAFE_FREE(rename_script);
1994                 return NT_STATUS_ACCESS_DENIED;
1995         }
1996
1997         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
1998                    oldname, newname));
1999
2000         /* We have to allow the account name to end with a '$'.
2001            Also, follow the semantics in _samr_create_user() and lower case the
2002            posix name but preserve the case in passdb */
2003
2004         fstrcpy( oldname_lower, oldname );
2005         strlower_m( oldname_lower );
2006         fstrcpy( newname_lower, newname );
2007         strlower_m( newname_lower );
2008         rename_script = realloc_string_sub2(rename_script,
2009                                         "%unew",
2010                                         newname_lower,
2011                                         true,
2012                                         true);
2013         if (!rename_script) {
2014                 return NT_STATUS_NO_MEMORY;
2015         }
2016         rename_script = realloc_string_sub2(rename_script,
2017                                         "%uold",
2018                                         oldname_lower,
2019                                         true,
2020                                         true);
2021         rc = smbrun(rename_script, NULL);
2022
2023         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2024                           rename_script, rc));
2025
2026         SAFE_FREE(rename_script);
2027
2028         if (rc == 0) {
2029                 smb_nscd_flush_user_cache();
2030         }
2031
2032         if (rc)
2033                 return NT_STATUS_UNSUCCESSFUL;
2034
2035         return NT_STATUS_OK;
2036 }
2037
2038 /**********************************************************************
2039  Helper function to determine for update_sam_account whether
2040  we need LDAP modification.
2041  *********************************************************************/
2042
2043 static bool element_is_set_or_changed(const struct samu *sampass,
2044                                       enum pdb_elements element)
2045 {
2046         return (IS_SAM_SET(sampass, element) ||
2047                 IS_SAM_CHANGED(sampass, element));
2048 }
2049
2050 /**********************************************************************
2051  Add struct samu to LDAP.
2052 *********************************************************************/
2053
2054 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2055 {
2056         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2057         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2058         int rc;
2059         LDAPMessage     *result = NULL;
2060         LDAPMessage     *entry  = NULL;
2061         LDAPMod         **mods = NULL;
2062         int             ldap_op = LDAP_MOD_REPLACE;
2063         uint32          num_result;
2064         const char      **attr_list;
2065         char *escape_user = NULL;
2066         const char      *username = pdb_get_username(newpwd);
2067         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
2068         char *filter = NULL;
2069         char *dn = NULL;
2070         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2071         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2072
2073         if (!ctx) {
2074                 return NT_STATUS_NO_MEMORY;
2075         }
2076
2077         if (!username || !*username) {
2078                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2079                 status = NT_STATUS_INVALID_PARAMETER;
2080                 goto fn_exit;
2081         }
2082
2083         /* free this list after the second search or in case we exit on failure */
2084         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2085
2086         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2087
2088         if (rc != LDAP_SUCCESS) {
2089                 goto fn_exit;
2090         }
2091
2092         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2093                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2094                          username));
2095                 goto fn_exit;
2096         }
2097         ldap_msgfree(result);
2098         result = NULL;
2099
2100         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2101                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2102                                                   sid, &result);
2103                 if (rc == LDAP_SUCCESS) {
2104                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2105                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2106                                          "already in the base, with samba "
2107                                          "attributes\n", sid_string_dbg(sid)));
2108                                 goto fn_exit;
2109                         }
2110                         ldap_msgfree(result);
2111                         result = NULL;
2112                 }
2113         }
2114
2115         /* does the entry already exist but without a samba attributes?
2116            we need to return the samba attributes here */
2117
2118         escape_user = escape_ldap_string_alloc( username );
2119         filter = talloc_strdup(attr_list, "(uid=%u)");
2120         if (!filter) {
2121                 status = NT_STATUS_NO_MEMORY;
2122                 goto fn_exit;
2123         }
2124         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2125         if (!filter) {
2126                 status = NT_STATUS_NO_MEMORY;
2127                 goto fn_exit;
2128         }
2129         SAFE_FREE(escape_user);
2130
2131         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2132                                    filter, attr_list, &result);
2133         if ( rc != LDAP_SUCCESS ) {
2134                 goto fn_exit;
2135         }
2136
2137         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2138
2139         if (num_result > 1) {
2140                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2141                 goto fn_exit;
2142         }
2143
2144         /* Check if we need to update an existing entry */
2145         if (num_result == 1) {
2146                 char *tmp;
2147
2148                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2149                 ldap_op = LDAP_MOD_REPLACE;
2150                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2151                 tmp = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
2152                 if (!tmp) {
2153                         goto fn_exit;
2154                 }
2155                 dn = talloc_asprintf(ctx, "%s", tmp);
2156                 SAFE_FREE(tmp);
2157                 if (!dn) {
2158                         status = NT_STATUS_NO_MEMORY;
2159                         goto fn_exit;
2160                 }
2161
2162         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2163
2164                 /* There might be a SID for this account already - say an idmap entry */
2165
2166                 filter = talloc_asprintf(ctx,
2167                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2168                                  get_userattr_key2string(ldap_state->schema_ver,
2169                                          LDAP_ATTR_USER_SID),
2170                                  sid_string_talloc(ctx, sid),
2171                                  LDAP_OBJ_IDMAP_ENTRY,
2172                                  LDAP_OBJ_SID_ENTRY);
2173                 if (!filter) {
2174                         status = NT_STATUS_NO_MEMORY;
2175                         goto fn_exit;
2176                 }
2177
2178                 /* free old result before doing a new search */
2179                 if (result != NULL) {
2180                         ldap_msgfree(result);
2181                         result = NULL;
2182                 }
2183                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2184                                            filter, attr_list, &result);
2185
2186                 if ( rc != LDAP_SUCCESS ) {
2187                         goto fn_exit;
2188                 }
2189
2190                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2191
2192                 if (num_result > 1) {
2193                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2194                         goto fn_exit;
2195                 }
2196
2197                 /* Check if we need to update an existing entry */
2198                 if (num_result == 1) {
2199                         char *tmp;
2200
2201                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2202                         ldap_op = LDAP_MOD_REPLACE;
2203                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2204                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2205                         if (!tmp) {
2206                                 goto fn_exit;
2207                         }
2208                         dn = talloc_asprintf(ctx, "%s", tmp);
2209                         SAFE_FREE(tmp);
2210                         if (!dn) {
2211                                 status = NT_STATUS_NO_MEMORY;
2212                                 goto fn_exit;
2213                         }
2214                 }
2215         }
2216
2217         if (num_result == 0) {
2218                 char *escape_username;
2219                 /* Check if we need to add an entry */
2220                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2221                 ldap_op = LDAP_MOD_ADD;
2222
2223                 escape_username = escape_rdn_val_string_alloc(username);
2224                 if (!escape_username) {
2225                         status = NT_STATUS_NO_MEMORY;
2226                         goto fn_exit;
2227                 }
2228
2229                 if (username[strlen(username)-1] == '$') {
2230                         dn = talloc_asprintf(ctx,
2231                                         "uid=%s,%s",
2232                                         escape_username,
2233                                         lp_ldap_machine_suffix());
2234                 } else {
2235                         dn = talloc_asprintf(ctx,
2236                                         "uid=%s,%s",
2237                                         escape_username,
2238                                         lp_ldap_user_suffix());
2239                 }
2240
2241                 SAFE_FREE(escape_username);
2242                 if (!dn) {
2243                         status = NT_STATUS_NO_MEMORY;
2244                         goto fn_exit;
2245                 }
2246         }
2247
2248         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2249                                 element_is_set_or_changed)) {
2250                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2251                 if (mods != NULL) {
2252                         ldap_mods_free(mods, true);
2253                 }
2254                 goto fn_exit;
2255         }
2256
2257         if (mods == NULL) {
2258                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2259                 goto fn_exit;
2260         }
2261         switch ( ldap_state->schema_ver ) {
2262                 case SCHEMAVER_SAMBAACCOUNT:
2263                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2264                         break;
2265                 case SCHEMAVER_SAMBASAMACCOUNT:
2266                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2267                         break;
2268                 default:
2269                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2270                         break;
2271         }
2272
2273         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2274         if (!NT_STATUS_IS_OK(ret)) {
2275                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2276                          pdb_get_username(newpwd),dn));
2277                 ldap_mods_free(mods, true);
2278                 goto fn_exit;
2279         }
2280
2281         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2282         ldap_mods_free(mods, true);
2283
2284         status = NT_STATUS_OK;
2285
2286   fn_exit:
2287
2288         TALLOC_FREE(ctx);
2289         SAFE_FREE(escape_user);
2290         if (result) {
2291                 ldap_msgfree(result);
2292         }
2293         return status;
2294 }
2295
2296 /**********************************************************************
2297  *********************************************************************/
2298
2299 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2300                                      const char *filter,
2301                                      LDAPMessage ** result)
2302 {
2303         int scope = LDAP_SCOPE_SUBTREE;
2304         int rc;
2305         const char **attr_list;
2306
2307         attr_list = get_attr_list(NULL, groupmap_attr_list);
2308         rc = smbldap_search(ldap_state->smbldap_state,
2309                             lp_ldap_group_suffix (), scope,
2310                             filter, attr_list, 0, result);
2311         TALLOC_FREE(attr_list);
2312
2313         return rc;
2314 }
2315
2316 /**********************************************************************
2317  *********************************************************************/
2318
2319 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2320                                  GROUP_MAP *map, LDAPMessage *entry)
2321 {
2322         char *temp = NULL;
2323         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2324
2325         if (ldap_state == NULL || map == NULL || entry == NULL ||
2326                         ldap_state->smbldap_state->ldap_struct == NULL) {
2327                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2328                 TALLOC_FREE(ctx);
2329                 return false;
2330         }
2331
2332         temp = smbldap_talloc_single_attribute(
2333                         ldap_state->smbldap_state->ldap_struct,
2334                         entry,
2335                         get_attr_key2string(groupmap_attr_list,
2336                                 LDAP_ATTR_GIDNUMBER),
2337                         ctx);
2338         if (!temp) {
2339                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2340                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2341                 TALLOC_FREE(ctx);
2342                 return false;
2343         }
2344         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2345
2346         map->gid = (gid_t)atol(temp);
2347
2348         TALLOC_FREE(temp);
2349         temp = smbldap_talloc_single_attribute(
2350                         ldap_state->smbldap_state->ldap_struct,
2351                         entry,
2352                         get_attr_key2string(groupmap_attr_list,
2353                                 LDAP_ATTR_GROUP_SID),
2354                         ctx);
2355         if (!temp) {
2356                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2357                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2358                 TALLOC_FREE(ctx);
2359                 return false;
2360         }
2361
2362         if (!string_to_sid(&map->sid, temp)) {
2363                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2364                 TALLOC_FREE(ctx);
2365                 return false;
2366         }
2367
2368         TALLOC_FREE(temp);
2369         temp = smbldap_talloc_single_attribute(
2370                         ldap_state->smbldap_state->ldap_struct,
2371                         entry,
2372                         get_attr_key2string(groupmap_attr_list,
2373                                 LDAP_ATTR_GROUP_TYPE),
2374                         ctx);
2375         if (!temp) {
2376                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2377                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2378                 TALLOC_FREE(ctx);
2379                 return false;
2380         }
2381         map->sid_name_use = (enum lsa_SidType)atol(temp);
2382
2383         if ((map->sid_name_use < SID_NAME_USER) ||
2384                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2385                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2386                 TALLOC_FREE(ctx);
2387                 return false;
2388         }
2389
2390         TALLOC_FREE(temp);
2391         temp = smbldap_talloc_single_attribute(
2392                         ldap_state->smbldap_state->ldap_struct,
2393                         entry,
2394                         get_attr_key2string(groupmap_attr_list,
2395                                 LDAP_ATTR_DISPLAY_NAME),
2396                         ctx);
2397         if (!temp) {
2398                 temp = smbldap_talloc_single_attribute(
2399                                 ldap_state->smbldap_state->ldap_struct,
2400                                 entry,
2401                                 get_attr_key2string(groupmap_attr_list,
2402                                         LDAP_ATTR_CN),
2403                                 ctx);
2404                 if (!temp) {
2405                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2406 for gidNumber(%lu)\n",(unsigned long)map->gid));
2407                         TALLOC_FREE(ctx);
2408                         return false;
2409                 }
2410         }
2411         fstrcpy(map->nt_name, temp);
2412
2413         TALLOC_FREE(temp);
2414         temp = smbldap_talloc_single_attribute(
2415                         ldap_state->smbldap_state->ldap_struct,
2416                         entry,
2417                         get_attr_key2string(groupmap_attr_list,
2418                                 LDAP_ATTR_DESC),
2419                         ctx);
2420         if (!temp) {
2421                 temp = talloc_strdup(ctx, "");
2422                 if (!temp) {
2423                         TALLOC_FREE(ctx);
2424                         return false;
2425                 }
2426         }
2427         fstrcpy(map->comment, temp);
2428
2429         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2430                 store_gid_sid_cache(&map->sid, map->gid);
2431         }
2432
2433         TALLOC_FREE(ctx);
2434         return true;
2435 }
2436
2437 /**********************************************************************
2438  *********************************************************************/
2439
2440 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2441                                  const char *filter,
2442                                  GROUP_MAP *map)
2443 {
2444         struct ldapsam_privates *ldap_state =
2445                 (struct ldapsam_privates *)methods->private_data;
2446         LDAPMessage *result = NULL;
2447         LDAPMessage *entry = NULL;
2448         int count;
2449
2450         if (ldapsam_search_one_group(ldap_state, filter, &result)
2451             != LDAP_SUCCESS) {
2452                 return NT_STATUS_NO_SUCH_GROUP;
2453         }
2454
2455         count = ldap_count_entries(priv2ld(ldap_state), result);
2456
2457         if (count < 1) {
2458                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2459                           "%s\n", filter));
2460                 ldap_msgfree(result);
2461                 return NT_STATUS_NO_SUCH_GROUP;
2462         }
2463
2464         if (count > 1) {
2465                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2466                           "count=%d\n", filter, count));
2467                 ldap_msgfree(result);
2468                 return NT_STATUS_NO_SUCH_GROUP;
2469         }
2470
2471         entry = ldap_first_entry(priv2ld(ldap_state), result);
2472
2473         if (!entry) {
2474                 ldap_msgfree(result);
2475                 return NT_STATUS_UNSUCCESSFUL;
2476         }
2477
2478         if (!init_group_from_ldap(ldap_state, map, entry)) {
2479                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2480                           "group filter %s\n", filter));
2481                 ldap_msgfree(result);
2482                 return NT_STATUS_NO_SUCH_GROUP;
2483         }
2484
2485         ldap_msgfree(result);
2486         return NT_STATUS_OK;
2487 }
2488
2489 /**********************************************************************
2490  *********************************************************************/
2491
2492 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2493                                  DOM_SID sid)
2494 {
2495         char *filter = NULL;
2496         NTSTATUS status;
2497         fstring tmp;
2498
2499         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2500                 LDAP_OBJ_GROUPMAP,
2501                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2502                 sid_to_fstring(tmp, &sid)) < 0) {
2503                 return NT_STATUS_NO_MEMORY;
2504         }
2505
2506         status = ldapsam_getgroup(methods, filter, map);
2507         SAFE_FREE(filter);
2508         return status;
2509 }
2510
2511 /**********************************************************************
2512  *********************************************************************/
2513
2514 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2515                                  gid_t gid)
2516 {
2517         char *filter = NULL;
2518         NTSTATUS status;
2519
2520         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2521                 LDAP_OBJ_GROUPMAP,
2522                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2523                 (unsigned long)gid) < 0) {
2524                 return NT_STATUS_NO_MEMORY;
2525         }
2526
2527         status = ldapsam_getgroup(methods, filter, map);
2528         SAFE_FREE(filter);
2529         return status;
2530 }
2531
2532 /**********************************************************************
2533  *********************************************************************/
2534
2535 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2536                                  const char *name)
2537 {
2538         char *filter = NULL;
2539         char *escape_name = escape_ldap_string_alloc(name);
2540         NTSTATUS status;
2541
2542         if (!escape_name) {
2543                 return NT_STATUS_NO_MEMORY;
2544         }
2545
2546         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2547                 LDAP_OBJ_GROUPMAP,
2548                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2549                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2550                 escape_name) < 0) {
2551                 SAFE_FREE(escape_name);
2552                 return NT_STATUS_NO_MEMORY;
2553         }
2554
2555         SAFE_FREE(escape_name);
2556         status = ldapsam_getgroup(methods, filter, map);
2557         SAFE_FREE(filter);
2558         return status;
2559 }
2560
2561 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2562                                            LDAPMessage *entry,
2563                                            const DOM_SID *domain_sid,
2564                                            uint32 *rid)
2565 {
2566         fstring str;
2567         DOM_SID sid;
2568
2569         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2570                                           str, sizeof(str)-1)) {
2571                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2572                 return False;
2573         }
2574
2575         if (!string_to_sid(&sid, str)) {
2576                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2577                 return False;
2578         }
2579
2580         if (sid_compare_domain(&sid, domain_sid) != 0) {
2581                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2582                            str, sid_string_dbg(domain_sid)));
2583                 return False;
2584         }
2585
2586         if (!sid_peek_rid(&sid, rid)) {
2587                 DEBUG(10, ("Could not peek into RID\n"));
2588                 return False;
2589         }
2590
2591         return True;
2592 }
2593
2594 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2595                                            TALLOC_CTX *mem_ctx,
2596                                            const DOM_SID *group,
2597                                            uint32 **pp_member_rids,
2598                                            size_t *p_num_members)
2599 {
2600         struct ldapsam_privates *ldap_state =
2601                 (struct ldapsam_privates *)methods->private_data;
2602         struct smbldap_state *conn = ldap_state->smbldap_state;
2603         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2604         const char *sid_attrs[] = { "sambaSID", NULL };
2605         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2606         LDAPMessage *result = NULL;
2607         LDAPMessage *entry;
2608         char *filter;
2609         char **values = NULL;
2610         char **memberuid;
2611         char *gidstr;
2612         int rc, count;
2613
2614         *pp_member_rids = NULL;
2615         *p_num_members = 0;
2616
2617         filter = talloc_asprintf(mem_ctx,
2618                                  "(&(objectClass=%s)"
2619                                  "(objectClass=%s)"
2620                                  "(sambaSID=%s))",
2621                                  LDAP_OBJ_POSIXGROUP,
2622                                  LDAP_OBJ_GROUPMAP,
2623                                  sid_string_talloc(mem_ctx, group));
2624         if (filter == NULL) {
2625                 ret = NT_STATUS_NO_MEMORY;
2626                 goto done;
2627         }
2628
2629         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2630                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2631                             &result);
2632
2633         if (rc != LDAP_SUCCESS)
2634                 goto done;
2635
2636         talloc_autofree_ldapmsg(mem_ctx, result);
2637
2638         count = ldap_count_entries(conn->ldap_struct, result);
2639
2640         if (count > 1) {
2641                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2642                           sid_string_dbg(group)));
2643                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2644                 goto done;
2645         }
2646
2647         if (count == 0) {
2648                 ret = NT_STATUS_NO_SUCH_GROUP;
2649                 goto done;
2650         }
2651
2652         entry = ldap_first_entry(conn->ldap_struct, result);
2653         if (entry == NULL)
2654                 goto done;
2655
2656         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2657         if (!gidstr) {
2658                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2659                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2660                 goto done;
2661         }
2662
2663         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2664
2665         if (values) {
2666
2667                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2668                 if (filter == NULL) {
2669                         ret = NT_STATUS_NO_MEMORY;
2670                         goto done;
2671                 }
2672
2673                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2674                         char *escape_memberuid;
2675
2676                         escape_memberuid = escape_ldap_string_alloc(*memberuid);
2677                         if (escape_memberuid == NULL) {
2678                                 ret = NT_STATUS_NO_MEMORY;
2679                                 goto done;
2680                         }
2681
2682                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2683                         if (filter == NULL) {
2684                                 SAFE_FREE(escape_memberuid);
2685                                 ret = NT_STATUS_NO_MEMORY;
2686                                 goto done;
2687                         }
2688
2689                         SAFE_FREE(escape_memberuid);
2690                 }
2691
2692                 filter = talloc_asprintf_append_buffer(filter, "))");
2693                 if (filter == NULL) {
2694                         ret = NT_STATUS_NO_MEMORY;
2695                         goto done;
2696                 }
2697
2698                 rc = smbldap_search(conn, lp_ldap_suffix(),
2699                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2700                                     &result);
2701
2702                 if (rc != LDAP_SUCCESS)
2703                         goto done;
2704
2705                 count = ldap_count_entries(conn->ldap_struct, result);
2706                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2707
2708                 talloc_autofree_ldapmsg(mem_ctx, result);
2709
2710                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2711                      entry != NULL;
2712                      entry = ldap_next_entry(conn->ldap_struct, entry))
2713                 {
2714                         char *sidstr;
2715                         DOM_SID sid;
2716                         uint32 rid;
2717
2718                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2719                                                                  entry, "sambaSID",
2720                                                                  mem_ctx);
2721                         if (!sidstr) {
2722                                 DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2723                                           "the sambaSID attribute\n"));
2724                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2725                                 goto done;
2726                         }
2727
2728                         if (!string_to_sid(&sid, sidstr))
2729                                 goto done;
2730
2731                         if (!sid_check_is_in_our_domain(&sid)) {
2732                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2733                                           "in our domain\n"));
2734                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2735                                 goto done;
2736                         }
2737
2738                         sid_peek_rid(&sid, &rid);
2739
2740                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2741                                                 p_num_members)) {
2742                                 ret = NT_STATUS_NO_MEMORY;
2743                                 goto done;
2744                         }
2745                 }
2746         }
2747
2748         filter = talloc_asprintf(mem_ctx,
2749                                  "(&(objectClass=%s)"
2750                                  "(gidNumber=%s))",
2751                                  LDAP_OBJ_SAMBASAMACCOUNT,
2752                                  gidstr);
2753
2754         rc = smbldap_search(conn, lp_ldap_suffix(),
2755                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2756                             &result);
2757
2758         if (rc != LDAP_SUCCESS)
2759                 goto done;
2760
2761         talloc_autofree_ldapmsg(mem_ctx, result);
2762
2763         for (entry = ldap_first_entry(conn->ldap_struct, result);
2764              entry != NULL;
2765              entry = ldap_next_entry(conn->ldap_struct, entry))
2766         {
2767                 uint32 rid;
2768
2769                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2770                                                     entry,
2771                                                     get_global_sam_sid(),
2772                                                     &rid)) {
2773                         DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2774                                   "the sambaSID attribute\n"));
2775                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2776                         goto done;
2777                 }
2778
2779                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2780                                         p_num_members)) {
2781                         ret = NT_STATUS_NO_MEMORY;
2782                         goto done;
2783                 }
2784         }
2785
2786         ret = NT_STATUS_OK;
2787
2788  done:
2789
2790         if (values)
2791                 ldap_value_free(values);
2792
2793         return ret;
2794 }
2795
2796 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2797                                                TALLOC_CTX *mem_ctx,
2798                                                struct samu *user,
2799                                                DOM_SID **pp_sids,
2800                                                gid_t **pp_gids,
2801                                                size_t *p_num_groups)
2802 {
2803         struct ldapsam_privates *ldap_state =
2804                 (struct ldapsam_privates *)methods->private_data;
2805         struct smbldap_state *conn = ldap_state->smbldap_state;
2806         char *filter;
2807         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2808         char *escape_name;
2809         int rc, count;
2810         LDAPMessage *result = NULL;
2811         LDAPMessage *entry;
2812         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2813         size_t num_sids, num_gids;
2814         char *gidstr;
2815         gid_t primary_gid = -1;
2816
2817         *pp_sids = NULL;
2818         num_sids = 0;
2819
2820         if (pdb_get_username(user) == NULL) {
2821                 return NT_STATUS_INVALID_PARAMETER;
2822         }
2823
2824         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2825         if (escape_name == NULL)
2826                 return NT_STATUS_NO_MEMORY;
2827
2828         /* retrieve the users primary gid */
2829         filter = talloc_asprintf(mem_ctx,
2830                                  "(&(objectClass=%s)(uid=%s))",
2831                                  LDAP_OBJ_SAMBASAMACCOUNT,
2832                                  escape_name);
2833         if (filter == NULL) {
2834                 ret = NT_STATUS_NO_MEMORY;
2835                 goto done;
2836         }
2837
2838         rc = smbldap_search(conn, lp_ldap_suffix(),
2839                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2840
2841         if (rc != LDAP_SUCCESS)
2842                 goto done;
2843
2844         talloc_autofree_ldapmsg(mem_ctx, result);
2845
2846         count = ldap_count_entries(priv2ld(ldap_state), result);
2847
2848         switch (count) {
2849         case 0:
2850                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2851                 ret = NT_STATUS_NO_SUCH_USER;
2852                 goto done;
2853         case 1:
2854                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2855
2856                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2857                 if (!gidstr) {
2858                         DEBUG (1, ("Unable to find the member's gid!\n"));
2859                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2860                         goto done;
2861                 }
2862                 primary_gid = strtoul(gidstr, NULL, 10);
2863                 break;
2864         default:
2865                 DEBUG(1, ("found more than one account with the same user name ?!\n"));
2866                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2867                 goto done;
2868         }
2869
2870         filter = talloc_asprintf(mem_ctx,
2871                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2872                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2873         if (filter == NULL) {
2874                 ret = NT_STATUS_NO_MEMORY;
2875                 goto done;
2876         }
2877
2878         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2879                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2880
2881         if (rc != LDAP_SUCCESS)
2882                 goto done;
2883
2884         talloc_autofree_ldapmsg(mem_ctx, result);
2885
2886         num_gids = 0;
2887         *pp_gids = NULL;
2888
2889         num_sids = 0;
2890         *pp_sids = NULL;
2891
2892         /* We need to add the primary group as the first gid/sid */
2893
2894         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2895                 ret = NT_STATUS_NO_MEMORY;
2896                 goto done;
2897         }
2898
2899         /* This sid will be replaced later */
2900
2901         ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
2902                                       &num_sids);
2903         if (!NT_STATUS_IS_OK(ret)) {
2904                 goto done;
2905         }
2906
2907         for (entry = ldap_first_entry(conn->ldap_struct, result);
2908              entry != NULL;
2909              entry = ldap_next_entry(conn->ldap_struct, entry))
2910         {
2911                 fstring str;
2912                 DOM_SID sid;
2913                 gid_t gid;
2914                 char *end;
2915
2916                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2917                                                   entry, "sambaSID",
2918                                                   str, sizeof(str)-1))
2919                         continue;
2920
2921                 if (!string_to_sid(&sid, str))
2922                         goto done;
2923
2924                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2925                                                   entry, "gidNumber",
2926                                                   str, sizeof(str)-1))
2927                         continue;
2928
2929                 gid = strtoul(str, &end, 10);
2930
2931                 if (PTR_DIFF(end, str) != strlen(str))
2932                         goto done;
2933
2934                 if (gid == primary_gid) {
2935                         sid_copy(&(*pp_sids)[0], &sid);
2936                 } else {
2937                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2938                                                 &num_gids)) {
2939                                 ret = NT_STATUS_NO_MEMORY;
2940                                 goto done;
2941                         }
2942                         ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2943                                                       &num_sids);
2944                         if (!NT_STATUS_IS_OK(ret)) {
2945                                 goto done;
2946                         }
2947                 }
2948         }
2949
2950         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2951                 DEBUG(3, ("primary group of [%s] not found\n",
2952                           pdb_get_username(user)));
2953                 goto done;
2954         }
2955
2956         *p_num_groups = num_sids;
2957
2958         ret = NT_STATUS_OK;
2959
2960  done:
2961
2962         SAFE_FREE(escape_name);
2963         return ret;
2964 }
2965
2966 /**********************************************************************
2967  * Augment a posixGroup object with a sambaGroupMapping domgroup
2968  *********************************************************************/
2969
2970 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2971                                        struct ldapsam_privates *ldap_state,
2972                                        GROUP_MAP *map)
2973 {
2974         const char *filter, *dn;
2975         LDAPMessage *msg, *entry;
2976         LDAPMod **mods;
2977         int rc;
2978
2979         filter = talloc_asprintf(mem_ctx,
2980                                  "(&(objectClass=posixGroup)(gidNumber=%u))",
2981                                  map->gid);
2982         if (filter == NULL) {
2983                 return NT_STATUS_NO_MEMORY;
2984         }
2985
2986         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2987                                    get_attr_list(mem_ctx, groupmap_attr_list),
2988                                    &msg);
2989         talloc_autofree_ldapmsg(mem_ctx, msg);
2990
2991         if ((rc != LDAP_SUCCESS) ||
2992             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2993             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2994                 return NT_STATUS_NO_SUCH_GROUP;
2995         }
2996
2997         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2998         if (dn == NULL) {
2999                 return NT_STATUS_NO_MEMORY;
3000         }
3001
3002         mods = NULL;
3003         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3004                         "sambaGroupMapping");
3005         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3006                          sid_string_talloc(mem_ctx, &map->sid));
3007         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3008                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3009         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3010                          map->nt_name);
3011         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3012                          map->comment);
3013         talloc_autofree_ldapmod(mem_ctx, mods);
3014
3015         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3016         if (rc != LDAP_SUCCESS) {
3017                 return NT_STATUS_ACCESS_DENIED;
3018         }
3019
3020         return NT_STATUS_OK;
3021 }
3022
3023 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3024                                                 GROUP_MAP *map)
3025 {
3026         struct ldapsam_privates *ldap_state =
3027                 (struct ldapsam_privates *)methods->private_data;
3028         LDAPMessage *msg = NULL;
3029         LDAPMod **mods = NULL;
3030         const char *attrs[] = { NULL };
3031         char *filter;
3032
3033         char *dn;
3034         TALLOC_CTX *mem_ctx;
3035         NTSTATUS result;
3036
3037         DOM_SID sid;
3038
3039         int rc;
3040
3041         mem_ctx = talloc_new(NULL);
3042         if (mem_ctx == NULL) {
3043                 DEBUG(0, ("talloc_new failed\n"));
3044                 return NT_STATUS_NO_MEMORY;
3045         }
3046
3047         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3048                                  sid_string_talloc(mem_ctx, &map->sid));
3049         if (filter == NULL) {
3050                 result = NT_STATUS_NO_MEMORY;
3051                 goto done;
3052         }
3053
3054         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3055                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3056         talloc_autofree_ldapmsg(mem_ctx, msg);
3057
3058         if ((rc == LDAP_SUCCESS) &&
3059             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3060
3061                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3062                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3063                 result = NT_STATUS_GROUP_EXISTS;
3064                 goto done;
3065         }
3066
3067         switch (map->sid_name_use) {
3068
3069         case SID_NAME_DOM_GRP:
3070                 /* To map a domain group we need to have a posix group
3071                    to attach to. */
3072                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3073                 goto done;
3074                 break;
3075
3076         case SID_NAME_ALIAS:
3077                 if (!sid_check_is_in_our_domain(&map->sid)
3078                         && !sid_check_is_in_builtin(&map->sid) )
3079                 {
3080                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3081                                   sid_string_dbg(&map->sid)));
3082                         result = NT_STATUS_INVALID_PARAMETER;
3083                         goto done;
3084                 }
3085                 break;
3086
3087         default:
3088                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3089                           sid_type_lookup(map->sid_name_use)));
3090                 result = NT_STATUS_INVALID_PARAMETER;
3091                 goto done;
3092         }
3093
3094         /* Domain groups have been mapped in a separate routine, we have to
3095          * create an alias now */
3096
3097         if (map->gid == -1) {
3098                 DEBUG(10, ("Refusing to map gid==-1\n"));
3099                 result = NT_STATUS_INVALID_PARAMETER;
3100                 goto done;
3101         }
3102
3103         if (pdb_gid_to_sid(map->gid, &sid)) {
3104                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
3105                           "add\n", map->gid, sid_string_dbg(&sid)));
3106                 result = NT_STATUS_GROUP_EXISTS;
3107                 goto done;
3108         }
3109
3110         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3111          * the best we can get out of LDAP. */
3112
3113         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3114                              sid_string_talloc(mem_ctx, &map->sid),
3115                              lp_ldap_group_suffix());
3116         if (dn == NULL) {
3117                 result = NT_STATUS_NO_MEMORY;
3118                 goto done;
3119         }
3120
3121         mods = NULL;
3122
3123         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3124                          "sambaSidEntry");
3125         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3126                          "sambaGroupMapping");
3127
3128         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3129                          sid_string_talloc(mem_ctx, &map->sid));
3130         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3131                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3132         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3133                          map->nt_name);
3134         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3135                          map->comment);
3136         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3137                          talloc_asprintf(mem_ctx, "%u", map->gid));
3138         talloc_autofree_ldapmod(mem_ctx, mods);
3139
3140         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3141
3142         result = (rc == LDAP_SUCCESS) ?
3143                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3144
3145  done:
3146         TALLOC_FREE(mem_ctx);
3147         return result;
3148 }
3149
3150 /**********************************************************************
3151  * Update a group mapping entry. We're quite strict about what can be changed:
3152  * Only the description and displayname may be changed. It simply does not
3153  * make any sense to change the SID, gid or the type in a mapping.
3154  *********************************************************************/
3155
3156 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3157                                                    GROUP_MAP *map)
3158 {
3159         struct ldapsam_privates *ldap_state =
3160                 (struct ldapsam_privates *)methods->private_data;
3161         int rc;
3162         const char *filter, *dn;
3163         LDAPMessage *msg = NULL;
3164         LDAPMessage *entry = NULL;
3165         LDAPMod **mods = NULL;
3166         TALLOC_CTX *mem_ctx;
3167         NTSTATUS result;
3168
3169         mem_ctx = talloc_new(NULL);
3170         if (mem_ctx == NULL) {
3171                 DEBUG(0, ("talloc_new failed\n"));
3172                 return NT_STATUS_NO_MEMORY;
3173         }
3174
3175         /* Make 100% sure that sid, gid and type are not changed by looking up
3176          * exactly the values we're given in LDAP. */
3177
3178         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3179                                  "(sambaSid=%s)(gidNumber=%u)"
3180                                  "(sambaGroupType=%d))",
3181                                  LDAP_OBJ_GROUPMAP,
3182                                  sid_string_talloc(mem_ctx, &map->sid),
3183                                  map->gid, map->sid_name_use);
3184         if (filter == NULL) {
3185                 result = NT_STATUS_NO_MEMORY;
3186                 goto done;
3187         }
3188
3189         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3190                                    get_attr_list(mem_ctx, groupmap_attr_list),
3191                                    &msg);
3192         talloc_autofree_ldapmsg(mem_ctx, msg);
3193
3194         if ((rc != LDAP_SUCCESS) ||
3195             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3196             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3197                 result = NT_STATUS_NO_SUCH_GROUP;
3198                 goto done;
3199         }
3200
3201         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3202
3203         if (dn == NULL) {
3204                 result = NT_STATUS_NO_MEMORY;
3205                 goto done;
3206         }
3207
3208         mods = NULL;
3209         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3210                          map->nt_name);
3211         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3212                          map->comment);
3213         talloc_autofree_ldapmod(mem_ctx, mods);
3214
3215         if (mods == NULL) {
3216                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3217                           "nothing to do\n"));
3218                 result = NT_STATUS_OK;
3219                 goto done;
3220         }
3221
3222         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3223
3224         if (rc != LDAP_SUCCESS) {
3225                 result = NT_STATUS_ACCESS_DENIED;
3226                 goto done;
3227         }
3228
3229         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3230                   "group %lu in LDAP\n", (unsigned long)map->gid));
3231
3232         result = NT_STATUS_OK;
3233
3234  done:
3235         TALLOC_FREE(mem_ctx);
3236         return result;
3237 }
3238
3239 /**********************************************************************
3240  *********************************************************************/
3241
3242 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3243                                                    DOM_SID sid)
3244 {
3245         struct ldapsam_privates *priv =
3246                 (struct ldapsam_privates *)methods->private_data;
3247         LDAPMessage *msg, *entry;
3248         int rc;
3249         NTSTATUS result;
3250         TALLOC_CTX *mem_ctx;
3251         char *filter;
3252
3253         mem_ctx = talloc_new(NULL);
3254         if (mem_ctx == NULL) {
3255                 DEBUG(0, ("talloc_new failed\n"));
3256                 return NT_STATUS_NO_MEMORY;
3257         }
3258
3259         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3260                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3261                                  sid_string_talloc(mem_ctx, &sid));
3262         if (filter == NULL) {
3263                 result = NT_STATUS_NO_MEMORY;
3264                 goto done;
3265         }
3266         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3267                                    get_attr_list(mem_ctx, groupmap_attr_list),
3268                                    &msg);
3269         talloc_autofree_ldapmsg(mem_ctx, msg);
3270
3271         if ((rc != LDAP_SUCCESS) ||
3272             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3273             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3274                 result = NT_STATUS_NO_SUCH_GROUP;
3275                 goto done;
3276         }
3277
3278         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3279                                   get_attr_list(mem_ctx,
3280                                                 groupmap_attr_list_to_delete));
3281
3282         if ((rc == LDAP_NAMING_VIOLATION) ||
3283             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3284             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3285                 const char *attrs[] = { "sambaGroupType", "description",
3286                                         "displayName", "sambaSIDList",
3287                                         NULL };
3288
3289                 /* Second try. Don't delete the sambaSID attribute, this is
3290                    for "old" entries that are tacked on a winbind
3291                    sambaIdmapEntry. */
3292
3293                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3294                                           LDAP_OBJ_GROUPMAP, attrs);
3295         }
3296
3297         if ((rc == LDAP_NAMING_VIOLATION) ||
3298             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
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=sambaSamAccount))",
4188                  "(uid=%u)");
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         DOM_SID sid;
4410         uint32 acct_flags;
4411
4412         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4413         if ((vals == NULL) || (vals[0] == NULL)) {
4414                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4415                 return False;
4416         }
4417         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4418         ldap_value_free(vals);
4419
4420         if ((state->acct_flags != 0) &&
4421             ((state->acct_flags & acct_flags) == 0))
4422                 return False;
4423
4424         result->acct_flags = acct_flags;
4425         result->account_name = "";
4426         result->fullname = "";
4427         result->description = "";
4428
4429         vals = ldap_get_values(ld, entry, "uid");
4430         if ((vals == NULL) || (vals[0] == NULL)) {
4431                 DEBUG(5, ("\"uid\" not found\n"));
4432                 return False;
4433         }
4434         pull_utf8_talloc(mem_ctx,
4435                          CONST_DISCARD(char **, &result->account_name),
4436                          vals[0]);
4437         ldap_value_free(vals);
4438
4439         vals = ldap_get_values(ld, entry, "displayName");
4440         if ((vals == NULL) || (vals[0] == NULL))
4441                 DEBUG(8, ("\"displayName\" not found\n"));
4442         else
4443                 pull_utf8_talloc(mem_ctx,
4444                                  CONST_DISCARD(char **, &result->fullname),
4445                                  vals[0]);
4446         ldap_value_free(vals);
4447
4448         vals = ldap_get_values(ld, entry, "description");
4449         if ((vals == NULL) || (vals[0] == NULL))
4450                 DEBUG(8, ("\"description\" not found\n"));
4451         else
4452                 pull_utf8_talloc(mem_ctx,
4453                                  CONST_DISCARD(char **, &result->description),
4454                                  vals[0]);
4455         ldap_value_free(vals);
4456
4457         if ((result->account_name == NULL) ||
4458             (result->fullname == NULL) ||
4459             (result->description == NULL)) {
4460                 DEBUG(0, ("talloc failed\n"));
4461                 return False;
4462         }
4463
4464         vals = ldap_get_values(ld, entry, "sambaSid");
4465         if ((vals == NULL) || (vals[0] == NULL)) {
4466                 DEBUG(0, ("\"objectSid\" not found\n"));
4467                 return False;
4468         }
4469
4470         if (!string_to_sid(&sid, vals[0])) {
4471                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4472                 ldap_value_free(vals);
4473                 return False;
4474         }
4475         ldap_value_free(vals);
4476
4477         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4478                 DEBUG(0, ("sid %s does not belong to our domain\n",
4479                           sid_string_dbg(&sid)));
4480                 return False;
4481         }
4482
4483         return True;
4484 }
4485
4486
4487 static bool ldapsam_search_users(struct pdb_methods *methods,
4488                                  struct pdb_search *search,
4489                                  uint32 acct_flags)
4490 {
4491         struct ldapsam_privates *ldap_state =
4492                 (struct ldapsam_privates *)methods->private_data;
4493         struct ldap_search_state *state;
4494
4495         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4496         if (state == NULL) {
4497                 DEBUG(0, ("talloc failed\n"));
4498                 return False;
4499         }
4500
4501         state->connection = ldap_state->smbldap_state;
4502
4503         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4504                 state->base = lp_ldap_user_suffix();
4505         else if ((acct_flags != 0) &&
4506                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4507                 state->base = lp_ldap_machine_suffix();
4508         else
4509                 state->base = lp_ldap_suffix();
4510
4511         state->acct_flags = acct_flags;
4512         state->base = talloc_strdup(search->mem_ctx, state->base);
4513         state->scope = LDAP_SCOPE_SUBTREE;
4514         state->filter = get_ldap_filter(search->mem_ctx, "*");
4515         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4516                                     "displayName", "description",
4517                                     "sambaAcctFlags", NULL);
4518         state->attrsonly = 0;
4519         state->pagedresults_cookie = NULL;
4520         state->entries = NULL;
4521         state->ldap2displayentry = ldapuser2displayentry;
4522
4523         if ((state->filter == NULL) || (state->attrs == NULL)) {
4524                 DEBUG(0, ("talloc failed\n"));
4525                 return False;
4526         }
4527
4528         search->private_data = state;
4529         search->next_entry = ldapsam_search_next_entry;
4530         search->search_end = ldapsam_search_end;
4531
4532         return ldapsam_search_firstpage(search);
4533 }
4534
4535 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4536                                    TALLOC_CTX *mem_ctx,
4537                                    LDAP *ld, LDAPMessage *entry,
4538                                    struct samr_displayentry *result)
4539 {
4540         char **vals;
4541         DOM_SID sid;
4542         uint16 group_type;
4543
4544         result->account_name = "";
4545         result->fullname = "";
4546         result->description = "";
4547
4548
4549         vals = ldap_get_values(ld, entry, "sambaGroupType");
4550         if ((vals == NULL) || (vals[0] == NULL)) {
4551                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4552                 if (vals != NULL) {
4553                         ldap_value_free(vals);
4554                 }
4555                 return False;
4556         }
4557
4558         group_type = atoi(vals[0]);
4559
4560         if ((state->group_type != 0) &&
4561             ((state->group_type != group_type))) {
4562                 ldap_value_free(vals);
4563                 return False;
4564         }
4565
4566         ldap_value_free(vals);
4567
4568         /* display name is the NT group name */
4569
4570         vals = ldap_get_values(ld, entry, "displayName");
4571         if ((vals == NULL) || (vals[0] == NULL)) {
4572                 DEBUG(8, ("\"displayName\" not found\n"));
4573
4574                 /* fallback to the 'cn' attribute */
4575                 vals = ldap_get_values(ld, entry, "cn");
4576                 if ((vals == NULL) || (vals[0] == NULL)) {
4577                         DEBUG(5, ("\"cn\" not found\n"));
4578                         return False;
4579                 }
4580                 pull_utf8_talloc(mem_ctx,
4581                                  CONST_DISCARD(char **, &result->account_name),
4582                                  vals[0]);
4583         }
4584         else {
4585                 pull_utf8_talloc(mem_ctx,
4586                                  CONST_DISCARD(char **, &result->account_name),
4587                                  vals[0]);
4588         }
4589
4590         ldap_value_free(vals);
4591
4592         vals = ldap_get_values(ld, entry, "description");
4593         if ((vals == NULL) || (vals[0] == NULL))
4594                 DEBUG(8, ("\"description\" not found\n"));
4595         else
4596                 pull_utf8_talloc(mem_ctx,
4597                                  CONST_DISCARD(char **, &result->description),
4598                                  vals[0]);
4599         ldap_value_free(vals);
4600
4601         if ((result->account_name == NULL) ||
4602             (result->fullname == NULL) ||
4603             (result->description == NULL)) {
4604                 DEBUG(0, ("talloc failed\n"));
4605                 return False;
4606         }
4607
4608         vals = ldap_get_values(ld, entry, "sambaSid");
4609         if ((vals == NULL) || (vals[0] == NULL)) {
4610                 DEBUG(0, ("\"objectSid\" not found\n"));
4611                 if (vals != NULL) {
4612                         ldap_value_free(vals);
4613                 }
4614                 return False;
4615         }
4616
4617         if (!string_to_sid(&sid, vals[0])) {
4618                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4619                 return False;
4620         }
4621
4622         ldap_value_free(vals);
4623
4624         switch (group_type) {
4625                 case SID_NAME_DOM_GRP:
4626                 case SID_NAME_ALIAS:
4627
4628                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4629                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4630                         {
4631                                 DEBUG(0, ("%s is not in our domain\n",
4632                                           sid_string_dbg(&sid)));
4633                                 return False;
4634                         }
4635                         break;
4636
4637                 default:
4638                         DEBUG(0,("unkown group type: %d\n", group_type));
4639                         return False;
4640         }
4641
4642         result->acct_flags = 0;
4643
4644         return True;
4645 }
4646
4647 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4648                                      struct pdb_search *search,
4649                                      const DOM_SID *sid,
4650                                      enum lsa_SidType type)
4651 {
4652         struct ldapsam_privates *ldap_state =
4653                 (struct ldapsam_privates *)methods->private_data;
4654         struct ldap_search_state *state;
4655         fstring tmp;
4656
4657         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4658         if (state == NULL) {
4659                 DEBUG(0, ("talloc failed\n"));
4660                 return False;
4661         }
4662
4663         state->connection = ldap_state->smbldap_state;
4664
4665         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4666         state->connection = ldap_state->smbldap_state;
4667         state->scope = LDAP_SCOPE_SUBTREE;
4668         state->filter = talloc_asprintf(search->mem_ctx,
4669                                         "(&(objectclass=sambaGroupMapping)"
4670                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4671                                         type, sid_to_fstring(tmp, sid));
4672         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4673                                     "displayName", "description",
4674                                     "sambaGroupType", NULL);
4675         state->attrsonly = 0;
4676         state->pagedresults_cookie = NULL;
4677         state->entries = NULL;
4678         state->group_type = type;
4679         state->ldap2displayentry = ldapgroup2displayentry;
4680
4681         if ((state->filter == NULL) || (state->attrs == NULL)) {
4682                 DEBUG(0, ("talloc failed\n"));
4683                 return False;
4684         }
4685
4686         search->private_data = state;
4687         search->next_entry = ldapsam_search_next_entry;
4688         search->search_end = ldapsam_search_end;
4689
4690         return ldapsam_search_firstpage(search);
4691 }
4692
4693 static bool ldapsam_search_groups(struct pdb_methods *methods,
4694                                   struct pdb_search *search)
4695 {
4696         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4697 }
4698
4699 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4700                                    struct pdb_search *search,
4701                                    const DOM_SID *sid)
4702 {
4703         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4704 }
4705
4706 static bool ldapsam_rid_algorithm(struct pdb_methods *methods)
4707 {
4708         return False;
4709 }
4710
4711 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4712                                     uint32 *rid)
4713 {
4714         struct smbldap_state *smbldap_state = priv->smbldap_state;
4715
4716         LDAPMessage *result = NULL;
4717         LDAPMessage *entry = NULL;
4718         LDAPMod **mods = NULL;
4719         NTSTATUS status;
4720         char *value;
4721         int rc;
4722         uint32 nextRid = 0;
4723         const char *dn;
4724
4725         TALLOC_CTX *mem_ctx;
4726
4727         mem_ctx = talloc_new(NULL);
4728         if (mem_ctx == NULL) {
4729                 DEBUG(0, ("talloc_new failed\n"));
4730                 return NT_STATUS_NO_MEMORY;
4731         }
4732
4733         status = smbldap_search_domain_info(smbldap_state, &result,
4734                                             get_global_sam_name(), False);
4735         if (!NT_STATUS_IS_OK(status)) {
4736                 DEBUG(3, ("Could not get domain info: %s\n",
4737                           nt_errstr(status)));
4738                 goto done;
4739         }
4740
4741         talloc_autofree_ldapmsg(mem_ctx, result);
4742
4743         entry = ldap_first_entry(priv2ld(priv), result);
4744         if (entry == NULL) {
4745                 DEBUG(0, ("Could not get domain info entry\n"));
4746                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4747                 goto done;
4748         }
4749
4750         /* Find the largest of the three attributes "sambaNextRid",
4751            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4752            concept of differentiating between user and group rids, and will
4753            use only "sambaNextRid" in the future. But for compatibility
4754            reasons I look if others have chosen different strategies -- VL */
4755
4756         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4757                                                 "sambaNextRid", mem_ctx);
4758         if (value != NULL) {
4759                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4760                 nextRid = MAX(nextRid, tmp);
4761         }
4762
4763         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4764                                                 "sambaNextUserRid", mem_ctx);
4765         if (value != NULL) {
4766                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4767                 nextRid = MAX(nextRid, tmp);
4768         }
4769
4770         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4771                                                 "sambaNextGroupRid", mem_ctx);
4772         if (value != NULL) {
4773                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4774                 nextRid = MAX(nextRid, tmp);
4775         }
4776
4777         if (nextRid == 0) {
4778                 nextRid = BASE_RID-1;
4779         }
4780
4781         nextRid += 1;
4782
4783         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4784                          talloc_asprintf(mem_ctx, "%d", nextRid));
4785         talloc_autofree_ldapmod(mem_ctx, mods);
4786
4787         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4788                 status = NT_STATUS_NO_MEMORY;
4789                 goto done;
4790         }
4791
4792         rc = smbldap_modify(smbldap_state, dn, mods);
4793
4794         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4795          * please retry" */
4796
4797         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4798
4799  done:
4800         if (NT_STATUS_IS_OK(status)) {
4801                 *rid = nextRid;
4802         }
4803
4804         TALLOC_FREE(mem_ctx);
4805         return status;
4806 }
4807
4808 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4809 {
4810         int i;
4811
4812         for (i=0; i<10; i++) {
4813                 NTSTATUS result = ldapsam_get_new_rid(
4814                         (struct ldapsam_privates *)methods->private_data, rid);
4815                 if (NT_STATUS_IS_OK(result)) {
4816                         return result;
4817                 }
4818
4819                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4820                         return result;
4821                 }
4822
4823                 /* The ldap update failed (maybe a race condition), retry */
4824         }
4825
4826         /* Tried 10 times, fail. */
4827         return NT_STATUS_ACCESS_DENIED;
4828 }
4829
4830 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4831 {
4832         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4833         return NT_STATUS_IS_OK(result) ? True : False;
4834 }
4835
4836 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
4837                               const DOM_SID *sid,
4838                               union unid_t *id, enum lsa_SidType *type)
4839 {
4840         struct ldapsam_privates *priv =
4841                 (struct ldapsam_privates *)methods->private_data;
4842         char *filter;
4843         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4844                                 NULL };
4845         LDAPMessage *result = NULL;
4846         LDAPMessage *entry = NULL;
4847         bool ret = False;
4848         char *value;
4849         int rc;
4850
4851         TALLOC_CTX *mem_ctx;
4852
4853         mem_ctx = talloc_new(NULL);
4854         if (mem_ctx == NULL) {
4855                 DEBUG(0, ("talloc_new failed\n"));
4856                 return False;
4857         }
4858
4859         filter = talloc_asprintf(mem_ctx,
4860                                  "(&(sambaSid=%s)"
4861                                  "(|(objectClass=%s)(objectClass=%s)))",
4862                                  sid_string_talloc(mem_ctx, sid),
4863                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4864         if (filter == NULL) {
4865                 DEBUG(5, ("talloc_asprintf failed\n"));
4866                 goto done;
4867         }
4868
4869         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4870                                    attrs, &result);
4871         if (rc != LDAP_SUCCESS) {
4872                 goto done;
4873         }
4874         talloc_autofree_ldapmsg(mem_ctx, result);
4875
4876         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4877                 DEBUG(10, ("Got %d entries, expected one\n",
4878                            ldap_count_entries(priv2ld(priv), result)));
4879                 goto done;
4880         }
4881
4882         entry = ldap_first_entry(priv2ld(priv), result);
4883
4884         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4885                                                 "sambaGroupType", mem_ctx);
4886
4887         if (value != NULL) {
4888                 const char *gid_str;
4889                 /* It's a group */
4890
4891                 gid_str = smbldap_talloc_single_attribute(
4892                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4893                 if (gid_str == NULL) {
4894                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4895                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4896                                                     entry)));
4897                         goto done;
4898                 }
4899
4900                 id->gid = strtoul(gid_str, NULL, 10);
4901                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4902                 ret = True;
4903                 goto done;
4904         }
4905
4906         /* It must be a user */
4907
4908         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4909                                                 "uidNumber", mem_ctx);
4910         if (value == NULL) {
4911                 DEBUG(1, ("Could not find uidNumber in %s\n",
4912                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4913                 goto done;
4914         }
4915
4916         id->uid = strtoul(value, NULL, 10);
4917         *type = SID_NAME_USER;
4918
4919         ret = True;
4920  done:
4921         TALLOC_FREE(mem_ctx);
4922         return ret;
4923 }
4924
4925 /*
4926  * The following functions is called only if
4927  * ldapsam:trusted and ldapsam:editposix are
4928  * set to true
4929  */
4930
4931 /*
4932  * ldapsam_create_user creates a new
4933  * posixAccount and sambaSamAccount object
4934  * in the ldap users subtree
4935  *
4936  * The uid is allocated by winbindd.
4937  */
4938
4939 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
4940                                     TALLOC_CTX *tmp_ctx, const char *name,
4941                                     uint32 acb_info, uint32 *rid)
4942 {
4943         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4944         LDAPMessage *entry = NULL;
4945         LDAPMessage *result = NULL;
4946         uint32 num_result;
4947         bool is_machine = False;
4948         bool add_posix = False;
4949         LDAPMod **mods = NULL;
4950         struct samu *user;
4951         char *filter;
4952         char *username;
4953         char *homedir;
4954         char *gidstr;
4955         char *uidstr;
4956         char *shell;
4957         const char *dn = NULL;
4958         DOM_SID group_sid;
4959         DOM_SID user_sid;
4960         gid_t gid = -1;
4961         uid_t uid = -1;
4962         NTSTATUS ret;
4963         int rc;
4964
4965         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
4966               acb_info & ACB_WSTRUST ||
4967               acb_info & ACB_SVRTRUST ||
4968               acb_info & ACB_DOMTRUST) {
4969                 is_machine = True;
4970         }
4971
4972         username = escape_ldap_string_alloc(name);
4973         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
4974                                  username, LDAP_OBJ_POSIXACCOUNT);
4975         SAFE_FREE(username);
4976
4977         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4978         if (rc != LDAP_SUCCESS) {
4979                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
4980                 return NT_STATUS_ACCESS_DENIED;
4981         }
4982         talloc_autofree_ldapmsg(tmp_ctx, result);
4983
4984         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4985
4986         if (num_result > 1) {
4987                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
4988                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4989         }
4990
4991         if (num_result == 1) {
4992                 char *tmp;
4993                 /* check if it is just a posix account.
4994                  * or if there is a sid attached to this entry
4995                  */
4996
4997                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4998                 if (!entry) {
4999                         return NT_STATUS_UNSUCCESSFUL;
5000                 }
5001
5002                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5003                 if (tmp) {
5004                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5005                         return NT_STATUS_USER_EXISTS;
5006                 }
5007
5008                 /* it is just a posix account, retrieve the dn for later use */
5009                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5010                 if (!dn) {
5011                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5012                         return NT_STATUS_NO_MEMORY;
5013                 }
5014         }
5015
5016         if (num_result == 0) {
5017                 add_posix = True;
5018         }
5019
5020         /* Create the basic samu structure and generate the mods for the ldap commit */
5021         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5022                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5023                 return ret;
5024         }
5025
5026         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5027
5028         user = samu_new(tmp_ctx);
5029         if (!user) {
5030                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5031                 return NT_STATUS_NO_MEMORY;
5032         }
5033
5034         if (!pdb_set_username(user, name, PDB_SET)) {
5035                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5036                 return NT_STATUS_UNSUCCESSFUL;
5037         }
5038         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5039                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5040                 return NT_STATUS_UNSUCCESSFUL;
5041         }
5042         if (is_machine) {
5043                 if (acb_info & ACB_NORMAL) {
5044                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5045                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5046                                 return NT_STATUS_UNSUCCESSFUL;
5047                         }
5048                 } else {
5049                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5050                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5051                                 return NT_STATUS_UNSUCCESSFUL;
5052                         }
5053                 }
5054         } else {
5055                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5056                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5057                         return NT_STATUS_UNSUCCESSFUL;
5058                 }
5059         }
5060
5061         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5062                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5063                 return NT_STATUS_UNSUCCESSFUL;
5064         }
5065
5066         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
5067                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5068                 return NT_STATUS_UNSUCCESSFUL;
5069         }
5070
5071         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5072                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5073         }
5074         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5075
5076         if (add_posix) {
5077                 char *escape_name;
5078
5079                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5080
5081                 /* retrieve the Domain Users group gid */
5082                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
5083                     !sid_to_gid(&group_sid, &gid)) {
5084                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5085                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5086                 }
5087
5088                 /* lets allocate a new userid for this user */
5089                 if (!winbind_allocate_uid(&uid)) {
5090                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5091                         return NT_STATUS_UNSUCCESSFUL;
5092                 }
5093
5094
5095                 if (is_machine) {
5096                         /* TODO: choose a more appropriate default for machines */
5097                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5098                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5099                 } else {
5100                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5101                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5102                 }
5103                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
5104                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5105
5106                 escape_name = escape_rdn_val_string_alloc(name);
5107                 if (!escape_name) {
5108                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5109                         return NT_STATUS_NO_MEMORY;
5110                 }
5111
5112                 if (is_machine) {
5113                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5114                 } else {
5115                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5116                 }
5117
5118                 SAFE_FREE(escape_name);
5119
5120                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5121                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5122                         return NT_STATUS_NO_MEMORY;
5123                 }
5124
5125                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5126                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5127                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5128                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5129                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5130                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5131                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5132         }
5133
5134         talloc_autofree_ldapmod(tmp_ctx, mods);
5135
5136         if (add_posix) {
5137                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5138         } else {
5139                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5140         }
5141
5142         if (rc != LDAP_SUCCESS) {
5143                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5144                 return NT_STATUS_UNSUCCESSFUL;
5145         }
5146
5147         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5148
5149         flush_pwnam_cache();
5150
5151         return NT_STATUS_OK;
5152 }
5153
5154 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5155 {
5156         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5157         LDAPMessage *result = NULL;
5158         LDAPMessage *entry = NULL;
5159         int num_result;
5160         const char *dn;
5161         char *filter;
5162         int rc;
5163
5164         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5165
5166         filter = talloc_asprintf(tmp_ctx,
5167                                  "(&(uid=%s)"
5168                                  "(objectClass=%s)"
5169                                  "(objectClass=%s))",
5170                                  pdb_get_username(sam_acct),
5171                                  LDAP_OBJ_POSIXACCOUNT,
5172                                  LDAP_OBJ_SAMBASAMACCOUNT);
5173         if (filter == NULL) {
5174                 return NT_STATUS_NO_MEMORY;
5175         }
5176
5177         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5178         if (rc != LDAP_SUCCESS) {
5179                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5180                 return NT_STATUS_UNSUCCESSFUL;
5181         }
5182         talloc_autofree_ldapmsg(tmp_ctx, result);
5183
5184         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5185
5186         if (num_result == 0) {
5187                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5188                 return NT_STATUS_NO_SUCH_USER;
5189         }
5190
5191         if (num_result > 1) {
5192                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5193                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5194         }
5195
5196         entry = ldap_first_entry(priv2ld(ldap_state), result);
5197         if (!entry) {
5198                 return NT_STATUS_UNSUCCESSFUL;
5199         }
5200
5201         /* it is just a posix account, retrieve the dn for later use */
5202         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5203         if (!dn) {
5204                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5205                 return NT_STATUS_NO_MEMORY;
5206         }
5207
5208         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5209         if (rc != LDAP_SUCCESS) {
5210                 return NT_STATUS_UNSUCCESSFUL;
5211         }
5212
5213         flush_pwnam_cache();
5214
5215         return NT_STATUS_OK;
5216 }
5217
5218 /*
5219  * ldapsam_create_group creates a new
5220  * posixGroup and sambaGroupMapping object
5221  * in the ldap groups subtree
5222  *
5223  * The gid is allocated by winbindd.
5224  */
5225
5226 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5227                                          TALLOC_CTX *tmp_ctx,
5228                                          const char *name,
5229                                          uint32 *rid)
5230 {
5231         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5232         NTSTATUS ret;
5233         LDAPMessage *entry = NULL;
5234         LDAPMessage *result = NULL;
5235         uint32 num_result;
5236         bool is_new_entry = False;
5237         LDAPMod **mods = NULL;
5238         char *filter;
5239         char *groupsidstr;
5240         char *groupname;
5241         char *grouptype;
5242         char *gidstr;
5243         const char *dn = NULL;
5244         DOM_SID group_sid;
5245         gid_t gid = -1;
5246         int rc;
5247
5248         groupname = escape_ldap_string_alloc(name);
5249         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5250                                  groupname, LDAP_OBJ_POSIXGROUP);
5251         SAFE_FREE(groupname);
5252
5253         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5254         if (rc != LDAP_SUCCESS) {
5255                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5256                 return NT_STATUS_UNSUCCESSFUL;
5257         }
5258         talloc_autofree_ldapmsg(tmp_ctx, result);
5259
5260         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5261
5262         if (num_result > 1) {
5263                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5264                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5265         }
5266
5267         if (num_result == 1) {
5268                 char *tmp;
5269                 /* check if it is just a posix group.
5270                  * or if there is a sid attached to this entry
5271                  */
5272
5273                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5274                 if (!entry) {
5275                         return NT_STATUS_UNSUCCESSFUL;
5276                 }
5277
5278                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5279                 if (tmp) {
5280                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5281                         return NT_STATUS_GROUP_EXISTS;
5282                 }
5283
5284                 /* it is just a posix group, retrieve the gid and the dn for later use */
5285                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5286                 if (!tmp) {
5287                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5288                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5289                 }
5290
5291                 gid = strtoul(tmp, NULL, 10);
5292
5293                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5294                 if (!dn) {
5295                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5296                         return NT_STATUS_NO_MEMORY;
5297                 }
5298         }
5299
5300         if (num_result == 0) {
5301                 char *escape_name;
5302
5303                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5304
5305                 is_new_entry = True;
5306
5307                 /* lets allocate a new groupid for this group */
5308                 if (!winbind_allocate_gid(&gid)) {
5309                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5310                         return NT_STATUS_UNSUCCESSFUL;
5311                 }
5312
5313                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5314
5315                 escape_name = escape_rdn_val_string_alloc(name);
5316                 if (!escape_name) {
5317                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5318                         return NT_STATUS_NO_MEMORY;
5319                 }
5320
5321                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5322
5323                 SAFE_FREE(escape_name);
5324
5325                 if (!gidstr || !dn) {
5326                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5327                         return NT_STATUS_NO_MEMORY;
5328                 }
5329
5330                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5331                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5332                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5333         }
5334
5335         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5336                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5337                 return ret;
5338         }
5339
5340         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5341
5342         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5343                                                                &group_sid));
5344         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5345
5346         if (!groupsidstr || !grouptype) {
5347                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5348                 return NT_STATUS_NO_MEMORY;
5349         }
5350
5351         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5352         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5353         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5354         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5355         talloc_autofree_ldapmod(tmp_ctx, mods);
5356
5357         if (is_new_entry) {
5358                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5359 #if 0
5360                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5361                         /* This call may fail with rfc2307bis schema */
5362                         /* Retry adding a structural class */
5363                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5364                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5365                 }
5366 #endif
5367         } else {
5368                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5369         }
5370
5371         if (rc != LDAP_SUCCESS) {
5372                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5373                 return NT_STATUS_UNSUCCESSFUL;
5374         }
5375
5376         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5377
5378         return NT_STATUS_OK;
5379 }
5380
5381 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5382 {
5383         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5384         LDAPMessage *result = NULL;
5385         LDAPMessage *entry = NULL;
5386         int num_result;
5387         const char *dn;
5388         char *gidstr;
5389         char *filter;
5390         DOM_SID group_sid;
5391         int rc;
5392
5393         /* get the group sid */
5394         sid_compose(&group_sid, get_global_sam_sid(), rid);
5395
5396         filter = talloc_asprintf(tmp_ctx,
5397                                  "(&(sambaSID=%s)"
5398                                  "(objectClass=%s)"
5399                                  "(objectClass=%s))",
5400                                  sid_string_talloc(tmp_ctx, &group_sid),
5401                                  LDAP_OBJ_POSIXGROUP,
5402                                  LDAP_OBJ_GROUPMAP);
5403         if (filter == NULL) {
5404                 return NT_STATUS_NO_MEMORY;
5405         }
5406
5407         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5408         if (rc != LDAP_SUCCESS) {
5409                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5410                 return NT_STATUS_UNSUCCESSFUL;
5411         }
5412         talloc_autofree_ldapmsg(tmp_ctx, result);
5413
5414         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5415
5416         if (num_result == 0) {
5417                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5418                 return NT_STATUS_NO_SUCH_GROUP;
5419         }
5420
5421         if (num_result > 1) {
5422                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5423                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5424         }
5425
5426         entry = ldap_first_entry(priv2ld(ldap_state), result);
5427         if (!entry) {
5428                 return NT_STATUS_UNSUCCESSFUL;
5429         }
5430
5431         /* here it is, retrieve the dn for later use */
5432         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5433         if (!dn) {
5434                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5435                 return NT_STATUS_NO_MEMORY;
5436         }
5437
5438         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5439         if (!gidstr) {
5440                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5441                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5442         }
5443
5444         /* check no user have this group marked as primary group */
5445         filter = talloc_asprintf(tmp_ctx,
5446                                  "(&(gidNumber=%s)"
5447                                  "(objectClass=%s)"
5448                                  "(objectClass=%s))",
5449                                  gidstr,
5450                                  LDAP_OBJ_POSIXACCOUNT,
5451                                  LDAP_OBJ_SAMBASAMACCOUNT);
5452
5453         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5454         if (rc != LDAP_SUCCESS) {
5455                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5456                 return NT_STATUS_UNSUCCESSFUL;
5457         }
5458         talloc_autofree_ldapmsg(tmp_ctx, result);
5459
5460         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5461
5462         if (num_result != 0) {
5463                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5464                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5465         }
5466
5467         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5468         if (rc != LDAP_SUCCESS) {
5469                 return NT_STATUS_UNSUCCESSFUL;
5470         }
5471
5472         return NT_STATUS_OK;
5473 }
5474
5475 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5476                                         TALLOC_CTX *tmp_ctx,
5477                                         uint32 group_rid,
5478                                         uint32 member_rid,
5479                                         int modop)
5480 {
5481         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5482         LDAPMessage *entry = NULL;
5483         LDAPMessage *result = NULL;
5484         uint32 num_result;
5485         LDAPMod **mods = NULL;
5486         char *filter;
5487         char *uidstr;
5488         const char *dn = NULL;
5489         DOM_SID group_sid;
5490         DOM_SID member_sid;
5491         int rc;
5492
5493         switch (modop) {
5494         case LDAP_MOD_ADD:
5495                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5496                 break;
5497         case LDAP_MOD_DELETE:
5498                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5499                 break;
5500         default:
5501                 return NT_STATUS_UNSUCCESSFUL;
5502         }
5503
5504         /* get member sid  */
5505         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5506
5507         /* get the group sid */
5508         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5509
5510         filter = talloc_asprintf(tmp_ctx,
5511                                  "(&(sambaSID=%s)"
5512                                  "(objectClass=%s)"
5513                                  "(objectClass=%s))",
5514                                  sid_string_talloc(tmp_ctx, &member_sid),
5515                                  LDAP_OBJ_POSIXACCOUNT,
5516                                  LDAP_OBJ_SAMBASAMACCOUNT);
5517         if (filter == NULL) {
5518                 return NT_STATUS_NO_MEMORY;
5519         }
5520
5521         /* get the member uid */
5522         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5523         if (rc != LDAP_SUCCESS) {
5524                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5525                 return NT_STATUS_UNSUCCESSFUL;
5526         }
5527         talloc_autofree_ldapmsg(tmp_ctx, result);
5528
5529         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5530
5531         if (num_result == 0) {
5532                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5533                 return NT_STATUS_NO_SUCH_MEMBER;
5534         }
5535
5536         if (num_result > 1) {
5537                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5538                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5539         }
5540
5541         entry = ldap_first_entry(priv2ld(ldap_state), result);
5542         if (!entry) {
5543                 return NT_STATUS_UNSUCCESSFUL;
5544         }
5545
5546         if (modop == LDAP_MOD_DELETE) {
5547                 /* check if we are trying to remove the member from his primary group */
5548                 char *gidstr;
5549                 gid_t user_gid, group_gid;
5550
5551                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5552                 if (!gidstr) {
5553                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5554                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5555                 }
5556
5557                 user_gid = strtoul(gidstr, NULL, 10);
5558
5559                 if (!sid_to_gid(&group_sid, &group_gid)) {
5560                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5561                         return NT_STATUS_UNSUCCESSFUL;
5562                 }
5563
5564                 if (user_gid == group_gid) {
5565                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5566                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5567                 }
5568         }
5569
5570         /* here it is, retrieve the uid for later use */
5571         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5572         if (!uidstr) {
5573                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5574                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5575         }
5576
5577         filter = talloc_asprintf(tmp_ctx,
5578                                  "(&(sambaSID=%s)"
5579                                  "(objectClass=%s)"
5580                                  "(objectClass=%s))",
5581                                  sid_string_talloc(tmp_ctx, &group_sid),
5582                                  LDAP_OBJ_POSIXGROUP,
5583                                  LDAP_OBJ_GROUPMAP);
5584
5585         /* get the group */
5586         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5587         if (rc != LDAP_SUCCESS) {
5588                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5589                 return NT_STATUS_UNSUCCESSFUL;
5590         }
5591         talloc_autofree_ldapmsg(tmp_ctx, result);
5592
5593         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5594
5595         if (num_result == 0) {
5596                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5597                 return NT_STATUS_NO_SUCH_GROUP;
5598         }
5599
5600         if (num_result > 1) {
5601                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5602                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5603         }
5604
5605         entry = ldap_first_entry(priv2ld(ldap_state), result);
5606         if (!entry) {
5607                 return NT_STATUS_UNSUCCESSFUL;
5608         }
5609
5610         /* here it is, retrieve the dn for later use */
5611         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5612         if (!dn) {
5613                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5614                 return NT_STATUS_NO_MEMORY;
5615         }
5616
5617         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5618
5619         talloc_autofree_ldapmod(tmp_ctx, mods);
5620
5621         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5622         if (rc != LDAP_SUCCESS) {
5623                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5624                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5625                         return NT_STATUS_MEMBER_IN_GROUP;
5626                 }
5627                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5628                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5629                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5630                 }
5631                 return NT_STATUS_UNSUCCESSFUL;
5632         }
5633
5634         return NT_STATUS_OK;
5635 }
5636
5637 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5638                                      TALLOC_CTX *tmp_ctx,
5639                                      uint32 group_rid,
5640                                      uint32 member_rid)
5641 {
5642         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5643 }
5644 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5645                                      TALLOC_CTX *tmp_ctx,
5646                                      uint32 group_rid,
5647                                      uint32 member_rid)
5648 {
5649         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5650 }
5651
5652 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5653                                           TALLOC_CTX *mem_ctx,
5654                                           struct samu *sampass)
5655 {
5656         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5657         LDAPMessage *entry = NULL;
5658         LDAPMessage *result = NULL;
5659         uint32 num_result;
5660         LDAPMod **mods = NULL;
5661         char *filter;
5662         char *escape_username;
5663         char *gidstr;
5664         const char *dn = NULL;
5665         gid_t gid;
5666         int rc;
5667
5668         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5669
5670         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5671                 DEBUG(0,("ldapsam_set_primary_group: failed to retrieve gid from user's group SID!\n"));
5672                 return NT_STATUS_UNSUCCESSFUL;
5673         }
5674         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5675         if (!gidstr) {
5676                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5677                 return NT_STATUS_NO_MEMORY;
5678         }
5679
5680         escape_username = escape_ldap_string_alloc(pdb_get_username(sampass));
5681         if (escape_username== NULL) {
5682                 return NT_STATUS_NO_MEMORY;
5683         }
5684
5685         filter = talloc_asprintf(mem_ctx,
5686                                  "(&(uid=%s)"
5687                                  "(objectClass=%s)"
5688                                  "(objectClass=%s))",
5689                                  escape_username,
5690                                  LDAP_OBJ_POSIXACCOUNT,
5691                                  LDAP_OBJ_SAMBASAMACCOUNT);
5692
5693         SAFE_FREE(escape_username);
5694
5695         if (filter == NULL) {
5696                 return NT_STATUS_NO_MEMORY;
5697         }
5698
5699         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5700         if (rc != LDAP_SUCCESS) {
5701                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5702                 return NT_STATUS_UNSUCCESSFUL;
5703         }
5704         talloc_autofree_ldapmsg(mem_ctx, result);
5705
5706         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5707
5708         if (num_result == 0) {
5709                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5710                 return NT_STATUS_NO_SUCH_USER;
5711         }
5712
5713         if (num_result > 1) {
5714                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5715                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5716         }
5717
5718         entry = ldap_first_entry(priv2ld(ldap_state), result);
5719         if (!entry) {
5720                 return NT_STATUS_UNSUCCESSFUL;
5721         }
5722
5723         /* retrieve the dn for later use */
5724         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5725         if (!dn) {
5726                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5727                 return NT_STATUS_NO_MEMORY;
5728         }
5729
5730         /* remove the old one, and add the new one, this way we do not risk races */
5731         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5732
5733         if (mods == NULL) {
5734                 return NT_STATUS_OK;
5735         }
5736
5737         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5738
5739         if (rc != LDAP_SUCCESS) {
5740                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5741                          pdb_get_username(sampass), gidstr));
5742                 return NT_STATUS_UNSUCCESSFUL;
5743         }
5744
5745         flush_pwnam_cache();
5746
5747         return NT_STATUS_OK;
5748 }
5749
5750
5751 /**********************************************************************
5752  trusted domains functions
5753  *********************************************************************/
5754
5755 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
5756                            const char *domain)
5757 {
5758         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
5759                                ldap_state->domain_dn);
5760 }
5761
5762 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
5763                                   const char *domain, LDAPMessage **entry)
5764 {
5765         int rc;
5766         char *filter;
5767         int scope = LDAP_SCOPE_SUBTREE;
5768         const char **attrs = NULL; /* NULL: get all attrs */
5769         int attrsonly = 0; /* 0: return values too */
5770         LDAPMessage *result = NULL;
5771         char *trusted_dn;
5772         uint32 num_result;
5773
5774         filter = talloc_asprintf(talloc_tos(),
5775                                  "(&(objectClass=%s)(sambaDomainName=%s))",
5776                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
5777
5778         trusted_dn = trusteddom_dn(ldap_state, domain);
5779         if (trusted_dn == NULL) {
5780                 return False;
5781         }
5782         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
5783                             filter, attrs, attrsonly, &result);
5784
5785         if (rc == LDAP_NO_SUCH_OBJECT) {
5786                 *entry = NULL;
5787                 return True;
5788         }
5789
5790         if (rc != LDAP_SUCCESS) {
5791                 return False;
5792         }
5793
5794         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5795
5796         if (num_result > 1) {
5797                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
5798                           "sambaTrustedDomainPassword object for domain '%s'"
5799                           "?!\n", domain));
5800                 return False;
5801         }
5802
5803         if (num_result == 0) {
5804                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
5805                           "sambaTrustedDomainPassword object for domain %s.\n",
5806                           domain));
5807                 *entry = NULL;
5808         } else {
5809                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
5810         }
5811
5812         return True;
5813 }
5814
5815 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
5816                                       const char *domain,
5817                                       char** pwd,
5818                                       DOM_SID *sid,
5819                                       time_t *pass_last_set_time)
5820 {
5821         struct ldapsam_privates *ldap_state =
5822                 (struct ldapsam_privates *)methods->private_data;
5823         LDAPMessage *entry = NULL;
5824
5825         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
5826
5827         if (!get_trusteddom_pw_int(ldap_state, domain, &entry) ||
5828             (entry == NULL))
5829         {
5830                 return False;
5831         }
5832
5833         /* password */
5834         if (pwd != NULL) {
5835                 char *pwd_str;
5836                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5837                                 entry, "sambaClearTextPassword", talloc_tos());
5838                 if (pwd_str == NULL) {
5839                         return False;
5840                 }
5841                 /* trusteddom_pw routines do not use talloc yet... */
5842                 *pwd = SMB_STRDUP(pwd_str);
5843                 if (*pwd == NULL) {
5844                         return False;
5845                 }
5846         }
5847
5848         /* last change time */
5849         if (pass_last_set_time != NULL) {
5850                 char *time_str;
5851                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5852                                 entry, "sambaPwdLastSet", talloc_tos());
5853                 if (time_str == NULL) {
5854                         return False;
5855                 }
5856                 *pass_last_set_time = (time_t)atol(time_str);
5857         }
5858
5859         /* domain sid */
5860         if (sid != NULL) {
5861                 char *sid_str;
5862                 DOM_SID *dom_sid;
5863                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5864                                                           entry, "sambaSID",
5865                                                           talloc_tos());
5866                 if (sid_str == NULL) {
5867                         return False;
5868                 }
5869                 dom_sid = string_sid_talloc(talloc_tos(), sid_str);
5870                 if (dom_sid == NULL) {
5871                         return False;
5872                 }
5873                 sid_copy(sid, dom_sid);
5874         }
5875
5876         return True;
5877 }
5878
5879 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
5880                                       const char* domain,
5881                                       const char* pwd,
5882                                       const DOM_SID *sid)
5883 {
5884         struct ldapsam_privates *ldap_state =
5885                 (struct ldapsam_privates *)methods->private_data;
5886         LDAPMessage *entry = NULL;
5887         LDAPMod **mods = NULL;
5888         char *prev_pwd = NULL;
5889         char *trusted_dn = NULL;
5890         int rc;
5891
5892         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
5893
5894         /*
5895          * get the current entry (if there is one) in order to put the
5896          * current password into the previous password attribute
5897          */
5898         if (!get_trusteddom_pw_int(ldap_state, domain, &entry)) {
5899                 return False;
5900         }
5901
5902         mods = NULL;
5903         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
5904                          "sambaTrustedDomainPassword");
5905         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
5906                          domain);
5907         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
5908                          sid_string_tos(sid));
5909         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
5910                          talloc_asprintf(talloc_tos(), "%li", time(NULL)));
5911         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5912                          "sambaClearTextPassword", pwd);
5913         if (entry != NULL) {
5914                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5915                                 entry, "sambaClearTextPassword", talloc_tos());
5916                 if (prev_pwd != NULL) {
5917                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5918                                          "sambaPreviousClearTextPassword",
5919                                          prev_pwd);
5920                 }
5921         }
5922
5923         trusted_dn = trusteddom_dn(ldap_state, domain);
5924         if (trusted_dn == NULL) {
5925                 return False;
5926         }
5927         if (entry == NULL) {
5928                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
5929         } else {
5930                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
5931         }
5932
5933         if (rc != LDAP_SUCCESS) {
5934                 DEBUG(1, ("error writing trusted domain password!\n"));
5935                 return False;
5936         }
5937
5938         return True;
5939 }
5940
5941 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
5942                                       const char *domain)
5943 {
5944         int rc;
5945         struct ldapsam_privates *ldap_state =
5946                 (struct ldapsam_privates *)methods->private_data;
5947         LDAPMessage *entry = NULL;
5948         const char *trusted_dn;
5949
5950         if (!get_trusteddom_pw_int(ldap_state, domain, &entry)) {
5951                 return False;
5952         }
5953
5954         if (entry == NULL) {
5955                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
5956                           "%s\n", domain));
5957                 return True;
5958         }
5959
5960         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
5961                                        entry);
5962         if (trusted_dn == NULL) {
5963                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
5964                 return False;
5965         }
5966
5967         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
5968         if (rc != LDAP_SUCCESS) {
5969                 return False;
5970         }
5971
5972         return True;
5973 }
5974
5975 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
5976                                          TALLOC_CTX *mem_ctx,
5977                                          uint32 *num_domains,
5978                                          struct trustdom_info ***domains)
5979 {
5980         int rc;
5981         struct ldapsam_privates *ldap_state =
5982                 (struct ldapsam_privates *)methods->private_data;
5983         char *filter;
5984         int scope = LDAP_SCOPE_SUBTREE;
5985         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
5986         int attrsonly = 0; /* 0: return values too */
5987         LDAPMessage *result = NULL;
5988         LDAPMessage *entry = NULL;
5989
5990         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
5991                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
5992
5993         rc = smbldap_search(ldap_state->smbldap_state,
5994                             ldap_state->domain_dn,
5995                             scope,
5996                             filter,
5997                             attrs,
5998                             attrsonly,
5999                             &result);
6000
6001         if (rc != LDAP_SUCCESS) {
6002                 return NT_STATUS_UNSUCCESSFUL;
6003         }
6004
6005         *num_domains = 0;
6006         if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) {
6007                 DEBUG(1, ("talloc failed\n"));
6008                 return NT_STATUS_NO_MEMORY;
6009         }
6010
6011         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6012              entry != NULL;
6013              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6014         {
6015                 char *dom_name, *dom_sid_str;
6016                 struct trustdom_info *dom_info;
6017
6018                 dom_info = TALLOC_P(*domains, struct trustdom_info);
6019                 if (dom_info == NULL) {
6020                         DEBUG(1, ("talloc failed\n"));
6021                         return NT_STATUS_NO_MEMORY;
6022                 }
6023
6024                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6025                                                            entry,
6026                                                            "sambaDomainName",
6027                                                            talloc_tos());
6028                 if (dom_name == NULL) {
6029                         DEBUG(1, ("talloc failed\n"));
6030                         return NT_STATUS_NO_MEMORY;
6031                 }
6032                 dom_info->name = dom_name;
6033
6034                 dom_sid_str = smbldap_talloc_single_attribute(
6035                                         priv2ld(ldap_state), entry, "sambaSID",
6036                                         talloc_tos());
6037                 if (dom_sid_str == NULL) {
6038                         DEBUG(1, ("talloc failed\n"));
6039                         return NT_STATUS_NO_MEMORY;
6040                 }
6041                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6042                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6043                                   dom_sid_str));
6044                         return NT_STATUS_UNSUCCESSFUL;
6045                 }
6046
6047                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6048                              domains, num_domains);
6049
6050                 if (*domains == NULL) {
6051                         DEBUG(1, ("talloc failed\n"));
6052                         return NT_STATUS_NO_MEMORY;
6053                 }
6054         }
6055
6056         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6057         return NT_STATUS_OK;
6058 }
6059
6060
6061 /**********************************************************************
6062  Housekeeping
6063  *********************************************************************/
6064
6065 static void free_private_data(void **vp)
6066 {
6067         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6068
6069         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6070
6071         if ((*ldap_state)->result != NULL) {
6072                 ldap_msgfree((*ldap_state)->result);
6073                 (*ldap_state)->result = NULL;
6074         }
6075         if ((*ldap_state)->domain_dn != NULL) {
6076                 SAFE_FREE((*ldap_state)->domain_dn);
6077         }
6078
6079         *ldap_state = NULL;
6080
6081         /* No need to free any further, as it is talloc()ed */
6082 }
6083
6084 /*********************************************************************
6085  Intitalise the parts of the pdb_methods structure that are common to
6086  all pdb_ldap modes
6087 *********************************************************************/
6088
6089 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6090 {
6091         NTSTATUS nt_status;
6092         struct ldapsam_privates *ldap_state;
6093
6094         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6095                 return nt_status;
6096         }
6097
6098         (*pdb_method)->name = "ldapsam";
6099
6100         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6101         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6102         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6103         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6104         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6105         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6106
6107         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6108         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6109         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6110         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6111         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6112         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6113         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6114
6115         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6116         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6117
6118         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6119
6120         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
6121         (*pdb_method)->new_rid = ldapsam_new_rid;
6122
6123         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6124         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6125         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6126         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6127
6128         /* TODO: Setup private data and free */
6129
6130         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
6131                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6132                 return NT_STATUS_NO_MEMORY;
6133         }
6134
6135         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6136                                  location, &ldap_state->smbldap_state);
6137
6138         if ( !NT_STATUS_IS_OK(nt_status) ) {
6139                 return nt_status;
6140         }
6141
6142         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6143                 return NT_STATUS_NO_MEMORY;
6144         }
6145
6146         (*pdb_method)->private_data = ldap_state;
6147
6148         (*pdb_method)->free_private_data = free_private_data;
6149
6150         return NT_STATUS_OK;
6151 }
6152
6153 /**********************************************************************
6154  Initialise the 'compat' mode for pdb_ldap
6155  *********************************************************************/
6156
6157 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6158 {
6159         NTSTATUS nt_status;
6160         struct ldapsam_privates *ldap_state;
6161         char *uri = talloc_strdup( NULL, location );
6162
6163         trim_char( uri, '\"', '\"' );
6164         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6165         if ( uri )
6166                 TALLOC_FREE( uri );
6167
6168         if ( !NT_STATUS_IS_OK(nt_status) ) {
6169                 return nt_status;
6170         }
6171
6172         (*pdb_method)->name = "ldapsam_compat";
6173
6174         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6175         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6176
6177         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6178
6179         return NT_STATUS_OK;
6180 }
6181
6182 /**********************************************************************
6183  Initialise the normal mode for pdb_ldap
6184  *********************************************************************/
6185
6186 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6187 {
6188         NTSTATUS nt_status;
6189         struct ldapsam_privates *ldap_state = NULL;
6190         uint32 alg_rid_base;
6191         char *alg_rid_base_string = NULL;
6192         LDAPMessage *result = NULL;
6193         LDAPMessage *entry = NULL;
6194         DOM_SID ldap_domain_sid;
6195         DOM_SID secrets_domain_sid;
6196         char *domain_sid_string = NULL;
6197         char *dn = NULL;
6198         char *uri = talloc_strdup( NULL, location );
6199
6200         trim_char( uri, '\"', '\"' );
6201         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6202         if (uri) {
6203                 TALLOC_FREE(uri);
6204         }
6205
6206         if (!NT_STATUS_IS_OK(nt_status)) {
6207                 return nt_status;
6208         }
6209
6210         (*pdb_method)->name = "ldapsam";
6211
6212         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6213         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6214         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6215         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6216         (*pdb_method)->search_users = ldapsam_search_users;
6217         (*pdb_method)->search_groups = ldapsam_search_groups;
6218         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6219
6220         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6221                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6222                 (*pdb_method)->enum_group_memberships =
6223                         ldapsam_enum_group_memberships;
6224                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6225                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6226
6227                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6228                         (*pdb_method)->create_user = ldapsam_create_user;
6229                         (*pdb_method)->delete_user = ldapsam_delete_user;
6230                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6231                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6232                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6233                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6234                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6235                 }
6236         }
6237
6238         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6239         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6240
6241         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6242
6243         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6244                                                &result,
6245                                                ldap_state->domain_name, True);
6246
6247         if ( !NT_STATUS_IS_OK(nt_status) ) {
6248                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6249                           "info, nor add one to the domain\n"));
6250                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6251                              "will be unable to allocate new users/groups, "
6252                              "and will risk BDCs having inconsistant SIDs\n"));
6253                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6254                 return NT_STATUS_OK;
6255         }
6256
6257         /* Given that the above might fail, everything below this must be
6258          * optional */
6259
6260         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6261                                  result);
6262         if (!entry) {
6263                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6264                           "entry\n"));
6265                 ldap_msgfree(result);
6266                 return NT_STATUS_UNSUCCESSFUL;
6267         }
6268
6269         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
6270         if (!dn) {
6271                 ldap_msgfree(result);
6272                 return NT_STATUS_UNSUCCESSFUL;
6273         }
6274
6275         ldap_state->domain_dn = smb_xstrdup(dn);
6276         ldap_memfree(dn);
6277
6278         domain_sid_string = smbldap_talloc_single_attribute(
6279                     ldap_state->smbldap_state->ldap_struct,
6280                     entry,
6281                     get_userattr_key2string(ldap_state->schema_ver,
6282                                             LDAP_ATTR_USER_SID),
6283                     talloc_tos());
6284
6285         if (domain_sid_string) {
6286                 bool found_sid;
6287                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6288                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6289                                   "read as a valid SID\n", domain_sid_string));
6290                         ldap_msgfree(result);
6291                         TALLOC_FREE(domain_sid_string);
6292                         return NT_STATUS_INVALID_PARAMETER;
6293                 }
6294                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6295                                                      &secrets_domain_sid);
6296                 if (!found_sid || !sid_equal(&secrets_domain_sid,
6297                                              &ldap_domain_sid)) {
6298                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6299                                   "%s based on pdb_ldap results %s -> %s\n",
6300                                   ldap_state->domain_name,
6301                                   sid_string_dbg(&secrets_domain_sid),
6302                                   sid_string_dbg(&ldap_domain_sid)));
6303
6304                         /* reset secrets.tdb sid */
6305                         secrets_store_domain_sid(ldap_state->domain_name,
6306                                                  &ldap_domain_sid);
6307                         DEBUG(1, ("New global sam SID: %s\n",
6308                                   sid_string_dbg(get_global_sam_sid())));
6309                 }
6310                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6311                 TALLOC_FREE(domain_sid_string);
6312         }
6313
6314         alg_rid_base_string = smbldap_talloc_single_attribute(
6315                     ldap_state->smbldap_state->ldap_struct,
6316                     entry,
6317                     get_attr_key2string( dominfo_attr_list,
6318                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6319                     talloc_tos());
6320         if (alg_rid_base_string) {
6321                 alg_rid_base = (uint32)atol(alg_rid_base_string);
6322                 if (alg_rid_base != algorithmic_rid_base()) {
6323                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6324                                   "changed since the LDAP\n"
6325                                   "database was initialised.  Aborting. \n"));
6326                         ldap_msgfree(result);
6327                         TALLOC_FREE(alg_rid_base_string);
6328                         return NT_STATUS_UNSUCCESSFUL;
6329                 }
6330                 TALLOC_FREE(alg_rid_base_string);
6331         }
6332         ldap_msgfree(result);
6333
6334         return NT_STATUS_OK;
6335 }
6336
6337 NTSTATUS pdb_ldap_init(void)
6338 {
6339         NTSTATUS nt_status;
6340         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6341                 return nt_status;
6342
6343         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6344                 return nt_status;
6345
6346         /* Let pdb_nds register backends */
6347         pdb_nds_init();
6348
6349         return NT_STATUS_OK;
6350 }