source3/passdb/pdb_ldap.c

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