source/passdb/pdb_ldap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau        1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9    Copyright (C) Simo Sorce                     2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 */
  25
  26 /* TODO:
  27 *  persistent connections: if using NSS LDAP, many connections are made
  28 *      however, using only one within Samba would be nice
  29 *
  30 *  Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
  31 *
  32 *  Other LDAP based login attributes: accountExpires, etc.
  33 *  (should be the domain of Samba proper, but the sam_password/struct samu
  34 *  structures don't have fields for some of these attributes)
  35 *
  36 *  SSL is done, but can't get the certificate based authentication to work
  37 *  against on my test platform (Linux 2.4, OpenLDAP 2.x)
  38 */
  39
  40 /* NOTE: this will NOT work against an Active Directory server
  41 *  due to the fact that the two password fields cannot be retrieved
  42 *  from a server; recommend using security = domain in this situation
  43 *  and/or winbind
  44 */
  45
  46 #include "includes.h"
  47
  48 #undef DBGC_CLASS
  49 #define DBGC_CLASS DBGC_PASSDB
  50
  51 #include <lber.h>
  52 #include <ldap.h>
  53
  54 /*
  55  * Work around versions of the LDAP client libs that don't have the OIDs
  56  * defined, or have them defined under the old name.
  57  * This functionality is really a factor of the server, not the client
  58  *
  59  */
  60
  61 #if defined(LDAP_EXOP_X_MODIFY_PASSWD) && !defined(LDAP_EXOP_MODIFY_PASSWD)
  62 #define LDAP_EXOP_MODIFY_PASSWD LDAP_EXOP_X_MODIFY_PASSWD
  63 #elif !defined(LDAP_EXOP_MODIFY_PASSWD)
  64 #define LDAP_EXOP_MODIFY_PASSWD "1.3.6.1.4.1.4203.1.11.1"
  65 #endif
  66
  67 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_ID) && !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  68 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID LDAP_EXOP_X_MODIFY_PASSWD_ID
  69 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  70 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID        ((ber_tag_t) 0x80U)
  71 #endif
  72
  73 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_NEW) && !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  74 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW LDAP_EXOP_X_MODIFY_PASSWD_NEW
  75 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  76 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW       ((ber_tag_t) 0x82U)
  77 #endif
  78
  79
  80 #include "smbldap.h"
  81
  82 /**********************************************************************
  83  Simple helper function to make stuff better readable
  84  **********************************************************************/
  85
  86 static LDAP *priv2ld(struct ldapsam_privates *priv)
  87 {
  88         return priv->smbldap_state->ldap_struct;
  89 }
  90
  91 /**********************************************************************
  92  Get the attribute name given a user schame version.
  93  **********************************************************************/
  94
  95 static const char* get_userattr_key2string( int schema_ver, int key )
  96 {
  97         switch ( schema_ver ) {
  98                 case SCHEMAVER_SAMBAACCOUNT:
  99                         return get_attr_key2string( attrib_map_v22, key );
 100
 101                 case SCHEMAVER_SAMBASAMACCOUNT:
 102                         return get_attr_key2string( attrib_map_v30, key );
 103
 104                 default:
 105                         DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
 106                         break;
 107         }
 108         return NULL;
 109 }
 110
 111 /**********************************************************************
 112  Return the list of attribute names given a user schema version.
 113 **********************************************************************/
 114
 115 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
 116 {
 117         switch ( schema_ver ) {
 118                 case SCHEMAVER_SAMBAACCOUNT:
 119                         return get_attr_list( mem_ctx, attrib_map_v22 );
 120
 121                 case SCHEMAVER_SAMBASAMACCOUNT:
 122                         return get_attr_list( mem_ctx, attrib_map_v30 );
 123                 default:
 124                         DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
 125                         break;
 126         }
 127
 128         return NULL;
 129 }
 130
 131 /**************************************************************************
 132  Return the list of attribute names to delete given a user schema version.
 133 **************************************************************************/
 134
 135 static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
 136                                               int schema_ver )
 137 {
 138         switch ( schema_ver ) {
 139                 case SCHEMAVER_SAMBAACCOUNT:
 140                         return get_attr_list( mem_ctx,
 141                                               attrib_map_to_delete_v22 );
 142
 143                 case SCHEMAVER_SAMBASAMACCOUNT:
 144                         return get_attr_list( mem_ctx,
 145                                               attrib_map_to_delete_v30 );
 146                 default:
 147                         DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
 148                         break;
 149         }
 150
 151         return NULL;
 152 }
 153
 154
 155 /*******************************************************************
 156  Generate the LDAP search filter for the objectclass based on the
 157  version of the schema we are using.
 158 ******************************************************************/
 159
 160 static const char* get_objclass_filter( int schema_ver )
 161 {
 162         fstring objclass_filter;
 163         char *result;
 164
 165         switch( schema_ver ) {
 166                 case SCHEMAVER_SAMBAACCOUNT:
 167                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 168                         break;
 169                 case SCHEMAVER_SAMBASAMACCOUNT:
 170                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 171                         break;
 172                 default:
 173                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 174                         objclass_filter[0] = '\0';
 175                         break;
 176         }
 177
 178         result = talloc_strdup(talloc_tos(), objclass_filter);
 179         SMB_ASSERT(result != NULL);
 180         return result;
 181 }
 182
 183 /*****************************************************************
 184  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 185 ******************************************************************/
 186
 187 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 188 {
 189         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 190         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 191         LDAPMessage *msg = NULL;
 192         LDAPMessage *entry = NULL;
 193         TALLOC_CTX *mem_ctx;
 194         char **values = NULL;
 195         int rc, num_result, num_values, rid;
 196         char *suffix = NULL;
 197         char *tok;
 198         const char *p;
 199         const char **attrs;
 200
 201         /* Unfortunatly there is no proper way to detect syncrepl-support in
 202          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 203          * but do not show up in the root-DSE yet. Neither we can query the
 204          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 205          * objectclass. Currently we require lp_ldap_suffix() to show up as
 206          * namingContext.  -  Guenther
 207          */
 208
 209         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 210                 return ntstatus;
 211         }
 212
 213         if (!seq_num) {
 214                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 215                 return ntstatus;
 216         }
 217
 218         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 219                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 220                          "as top-level namingContext\n", lp_ldap_suffix()));
 221                 return ntstatus;
 222         }
 223
 224         mem_ctx = talloc_init("ldapsam_get_seq_num");
 225
 226         if (mem_ctx == NULL)
 227                 return NT_STATUS_NO_MEMORY;
 228
 229         if ((attrs = TALLOC_ARRAY(mem_ctx, const char *, 2)) == NULL) {
 230                 ntstatus = NT_STATUS_NO_MEMORY;
 231                 goto done;
 232         }
 233
 234         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 235         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 236         if (rid > 0) {
 237
 238                 /* consumer syncreplCookie: */
 239                 /* csn=20050126161620Z#0000001#00#00000 */
 240                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 241                 attrs[1] = NULL;
 242                 suffix = talloc_asprintf(mem_ctx,
 243                                 "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 244                 if (!suffix) {
 245                         ntstatus = NT_STATUS_NO_MEMORY;
 246                         goto done;
 247                 }
 248         } else {
 249
 250                 /* provider contextCSN */
 251                 /* 20050126161620Z#000009#00#000000 */
 252                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 253                 attrs[1] = NULL;
 254                 suffix = talloc_asprintf(mem_ctx,
 255                                 "cn=ldapsync,%s", lp_ldap_suffix());
 256
 257                 if (!suffix) {
 258                         ntstatus = NT_STATUS_NO_MEMORY;
 259                         goto done;
 260                 }
 261         }
 262
 263         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 264                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 265
 266         if (rc != LDAP_SUCCESS) {
 267                 goto done;
 268         }
 269
 270         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 271         if (num_result != 1) {
 272                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 273                 goto done;
 274         }
 275
 276         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 277         if (entry == NULL) {
 278                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 279                 goto done;
 280         }
 281
 282         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 283         if (values == NULL) {
 284                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 285                 goto done;
 286         }
 287
 288         num_values = ldap_count_values(values);
 289         if (num_values == 0) {
 290                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 291                 goto done;
 292         }
 293
 294         p = values[0];
 295         if (!next_token_talloc(mem_ctx, &p, &tok, "#")) {
 296                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 297                 goto done;
 298         }
 299
 300         p = tok;
 301         if (!strncmp(p, "csn=", strlen("csn=")))
 302                 p += strlen("csn=");
 303
 304         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 305
 306         *seq_num = generalized_to_unix_time(p);
 307
 308         /* very basic sanity check */
 309         if (*seq_num <= 0) {
 310                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 311                         (int)*seq_num));
 312                 goto done;
 313         }
 314
 315         ntstatus = NT_STATUS_OK;
 316
 317  done:
 318         if (values != NULL)
 319                 ldap_value_free(values);
 320         if (msg != NULL)
 321                 ldap_msgfree(msg);
 322         if (mem_ctx)
 323                 talloc_destroy(mem_ctx);
 324
 325         return ntstatus;
 326 }
 327
 328 /*******************************************************************
 329  Run the search by name.
 330 ******************************************************************/
 331
 332 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 333                                           const char *user,
 334                                           LDAPMessage ** result,
 335                                           const char **attr)
 336 {
 337         char *filter = NULL;
 338         char *escape_user = escape_ldap_string_alloc(user);
 339         int ret = -1;
 340
 341         if (!escape_user) {
 342                 return LDAP_NO_MEMORY;
 343         }
 344
 345         /*
 346          * in the filter expression, replace %u with the real name
 347          * so in ldap filter, %u MUST exist :-)
 348          */
 349         filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
 350                 get_objclass_filter(ldap_state->schema_ver));
 351         if (!filter) {
 352                 return LDAP_NO_MEMORY;
 353         }
 354         /*
 355          * have to use this here because $ is filtered out
 356          * in string_sub
 357          */
 358
 359         filter = talloc_all_string_sub(talloc_tos(),
 360                                 filter, "%u", escape_user);
 361         if (!filter) {
 362                 return LDAP_NO_MEMORY;
 363         }
 364         SAFE_FREE(escape_user);
 365
 366         ret = smbldap_search_suffix(ldap_state->smbldap_state,
 367                         filter, attr, result);
 368         TALLOC_FREE(filter);
 369         return ret;
 370 }
 371
 372 /*******************************************************************
 373  Run the search by rid.
 374 ******************************************************************/
 375
 376 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 377                                          uint32 rid, LDAPMessage ** result,
 378                                          const char **attr)
 379 {
 380         char *filter = NULL;
 381         int rc;
 382
 383         filter = talloc_asprintf(talloc_tos(), "(&(rid=%i)%s)", rid,
 384                 get_objclass_filter(ldap_state->schema_ver));
 385         if (!filter) {
 386                 return LDAP_NO_MEMORY;
 387         }
 388
 389         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 390                         filter, attr, result);
 391         TALLOC_FREE(filter);
 392         return rc;
 393 }
 394
 395 /*******************************************************************
 396  Run the search by SID.
 397 ******************************************************************/
 398
 399 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 400                                  const DOM_SID *sid, LDAPMessage ** result,
 401                                  const char **attr)
 402 {
 403         char *filter = NULL;
 404         int rc;
 405         fstring sid_string;
 406
 407         filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
 408                 get_userattr_key2string(ldap_state->schema_ver,
 409                         LDAP_ATTR_USER_SID),
 410                 sid_to_string(sid_string, sid),
 411                 get_objclass_filter(ldap_state->schema_ver));
 412         if (!filter) {
 413                 return LDAP_NO_MEMORY;
 414         }
 415
 416         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 417                         filter, attr, result);
 418
 419         TALLOC_FREE(filter);
 420         return rc;
 421 }
 422
 423 /*******************************************************************
 424  Delete complete object or objectclass and attrs from
 425  object found in search_result depending on lp_ldap_delete_dn
 426 ******************************************************************/
 427
 428 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 429                                 TALLOC_CTX *mem_ctx,
 430                                 LDAPMessage *entry,
 431                                 const char *objectclass,
 432                                 const char **attrs)
 433 {
 434         LDAPMod **mods = NULL;
 435         char *name;
 436         const char *dn;
 437         BerElement *ptr = NULL;
 438
 439         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 440         if (dn == NULL) {
 441                 return LDAP_NO_MEMORY;
 442         }
 443
 444         if (lp_ldap_delete_dn()) {
 445                 return smbldap_delete(priv->smbldap_state, dn);
 446         }
 447
 448         /* Ok, delete only the SAM attributes */
 449
 450         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 451              name != NULL;
 452              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 453                 const char **attrib;
 454
 455                 /* We are only allowed to delete the attributes that
 456                    really exist. */
 457
 458                 for (attrib = attrs; *attrib != NULL; attrib++) {
 459                         if (strequal(*attrib, name)) {
 460                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 461                                            "attribute %s\n", name));
 462                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 463                                                 NULL);
 464                         }
 465                 }
 466                 ldap_memfree(name);
 467         }
 468
 469         if (ptr != NULL) {
 470                 ber_free(ptr, 0);
 471         }
 472
 473         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 474         talloc_autofree_ldapmod(mem_ctx, mods);
 475
 476         return smbldap_modify(priv->smbldap_state, dn, mods);
 477 }
 478
 479 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 480 {
 481         char *temp;
 482         struct tm tm;
 483
 484         temp = smbldap_talloc_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 485                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 486                         talloc_tos());
 487         if (!temp) {
 488                 return (time_t) 0;
 489         }
 490
 491         if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
 492                 DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
 493                         (char*)temp));
 494                 TALLOC_FREE(temp);
 495                 return (time_t) 0;
 496         }
 497         TALLOC_FREE(temp);
 498         tzset();
 499         return timegm(&tm);
 500 }
 501
 502 /**********************************************************************
 503  Initialize struct samu from an LDAP query.
 504  (Based on init_sam_from_buffer in pdb_tdb.c)
 505 *********************************************************************/
 506
 507 static bool init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 508                                 struct samu * sampass,
 509                                 LDAPMessage * entry)
 510 {
 511         time_t  logon_time,
 512                         logoff_time,
 513                         kickoff_time,
 514                         pass_last_set_time,
 515                         pass_can_change_time,
 516                         pass_must_change_time,
 517                         ldap_entry_time,
 518                         bad_password_time;
 519         char *username = NULL,
 520                         *domain = NULL,
 521                         *nt_username = NULL,
 522                         *fullname = NULL,
 523                         *homedir = NULL,
 524                         *dir_drive = NULL,
 525                         *logon_script = NULL,
 526                         *profile_path = NULL,
 527                         *acct_desc = NULL,
 528                         *workstations = NULL,
 529                         *munged_dial = NULL;
 530         uint32          user_rid;
 531         uint8           smblmpwd[LM_HASH_LEN],
 532                         smbntpwd[NT_HASH_LEN];
 533         bool            use_samba_attrs = True;
 534         uint32          acct_ctrl = 0;
 535         uint16          logon_divs;
 536         uint16          bad_password_count = 0,
 537                         logon_count = 0;
 538         uint32 hours_len;
 539         uint8           hours[MAX_HOURS_LEN];
 540         char *temp = NULL;
 541         LOGIN_CACHE     *cache_entry = NULL;
 542         uint32          pwHistLen;
 543         bool expand_explicit = lp_passdb_expand_explicit();
 544         bool ret = false;
 545         TALLOC_CTX *ctx = talloc_init("init_sam_from_ldap");
 546
 547         if (!ctx) {
 548                 return false;
 549         }
 550         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 551                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 552                 goto fn_exit;
 553         }
 554
 555         if (priv2ld(ldap_state) == NULL) {
 556                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 557                           "ldap_struct is NULL!\n"));
 558                 goto fn_exit;
 559         }
 560
 561         if (!(username = smbldap_talloc_single_attribute(priv2ld(ldap_state),
 562                                         entry,
 563                                         "uid",
 564                                         ctx))) {
 565                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 566                           "this user!\n"));
 567                 goto fn_exit;
 568         }
 569
 570         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 571
 572         nt_username = talloc_strdup(ctx, username);
 573         if (!nt_username) {
 574                 goto fn_exit;
 575         }
 576
 577         domain = talloc_strdup(ctx, ldap_state->domain_name);
 578         if (!domain) {
 579                 goto fn_exit;
 580         }
 581
 582         pdb_set_username(sampass, username, PDB_SET);
 583
 584         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 585         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 586
 587         /* deal with different attributes between the schema first */
 588
 589         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 590                 if ((temp = smbldap_talloc_single_attribute(
 591                                 ldap_state->smbldap_state->ldap_struct,
 592                                 entry,
 593                                 get_userattr_key2string(ldap_state->schema_ver,
 594                                         LDAP_ATTR_USER_SID),
 595                                 ctx))!=NULL) {
 596                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 597                 }
 598         } else {
 599                 if ((temp = smbldap_talloc_single_attribute(
 600                                 ldap_state->smbldap_state->ldap_struct,
 601                                 entry,
 602                                 get_userattr_key2string(ldap_state->schema_ver,
 603                                         LDAP_ATTR_USER_RID),
 604                                 ctx))!=NULL) {
 605                         user_rid = (uint32)atol(temp);
 606                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 607                 }
 608         }
 609
 610         if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
 611                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 612                         get_userattr_key2string(ldap_state->schema_ver,
 613                                 LDAP_ATTR_USER_SID),
 614                         get_userattr_key2string(ldap_state->schema_ver,
 615                                 LDAP_ATTR_USER_RID),
 616                         username));
 617                 return False;
 618         }
 619
 620         temp = smbldap_talloc_single_attribute(
 621                         ldap_state->smbldap_state->ldap_struct,
 622                         entry,
 623                         get_userattr_key2string(ldap_state->schema_ver,
 624                                 LDAP_ATTR_PWD_LAST_SET),
 625                         ctx);
 626         if (temp) {
 627                 pass_last_set_time = (time_t) atol(temp);
 628                 pdb_set_pass_last_set_time(sampass,
 629                                 pass_last_set_time, PDB_SET);
 630         }
 631
 632         temp = smbldap_talloc_single_attribute(
 633                         ldap_state->smbldap_state->ldap_struct,
 634                         entry,
 635                         get_userattr_key2string(ldap_state->schema_ver,
 636                                 LDAP_ATTR_LOGON_TIME),
 637                         ctx);
 638         if (temp) {
 639                 logon_time = (time_t) atol(temp);
 640                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 641         }
 642
 643         temp = smbldap_talloc_single_attribute(
 644                         ldap_state->smbldap_state->ldap_struct,
 645                         entry,
 646                         get_userattr_key2string(ldap_state->schema_ver,
 647                                 LDAP_ATTR_LOGOFF_TIME),
 648                         ctx);
 649         if (temp) {
 650                 logoff_time = (time_t) atol(temp);
 651                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 652         }
 653
 654         temp = smbldap_talloc_single_attribute(
 655                         ldap_state->smbldap_state->ldap_struct,
 656                         entry,
 657                         get_userattr_key2string(ldap_state->schema_ver,
 658                                 LDAP_ATTR_KICKOFF_TIME),
 659                         ctx);
 660         if (temp) {
 661                 kickoff_time = (time_t) atol(temp);
 662                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 663         }
 664
 665         temp = smbldap_talloc_single_attribute(
 666                         ldap_state->smbldap_state->ldap_struct,
 667                         entry,
 668                         get_userattr_key2string(ldap_state->schema_ver,
 669                                 LDAP_ATTR_PWD_CAN_CHANGE),
 670                         ctx);
 671         if (temp) {
 672                 pass_can_change_time = (time_t) atol(temp);
 673                 pdb_set_pass_can_change_time(sampass,
 674                                 pass_can_change_time, PDB_SET);
 675         }
 676
 677         temp = smbldap_talloc_single_attribute(
 678                         ldap_state->smbldap_state->ldap_struct,
 679                         entry,
 680                         get_userattr_key2string(ldap_state->schema_ver,
 681                                 LDAP_ATTR_PWD_MUST_CHANGE),
 682                         ctx);
 683         if (temp) {
 684                 pass_must_change_time = (time_t) atol(temp);
 685                 pdb_set_pass_must_change_time(sampass,
 686                                 pass_must_change_time, PDB_SET);
 687         }
 688
 689         /* recommend that 'gecos' and 'displayName' should refer to the same
 690          * attribute OID.  userFullName depreciated, only used by Samba
 691          * primary rules of LDAP: don't make a new attribute when one is already defined
 692          * that fits your needs; using cn then displayName rather than 'userFullName'
 693          */
 694
 695         fullname = smbldap_talloc_single_attribute(
 696                         ldap_state->smbldap_state->ldap_struct,
 697                         entry,
 698                         get_userattr_key2string(ldap_state->schema_ver,
 699                                 LDAP_ATTR_DISPLAY_NAME),
 700                         ctx);
 701         if (fullname) {
 702                 pdb_set_fullname(sampass, fullname, PDB_SET);
 703         } else {
 704                 fullname = smbldap_talloc_single_attribute(
 705                                 ldap_state->smbldap_state->ldap_struct,
 706                                 entry,
 707                                 get_userattr_key2string(ldap_state->schema_ver,
 708                                         LDAP_ATTR_CN),
 709                                 ctx);
 710                 if (fullname) {
 711                         pdb_set_fullname(sampass, fullname, PDB_SET);
 712                 }
 713         }
 714
 715         dir_drive = smbldap_talloc_single_attribute(
 716                         ldap_state->smbldap_state->ldap_struct,
 717                         entry,
 718                         get_userattr_key2string(ldap_state->schema_ver,
 719                                 LDAP_ATTR_HOME_DRIVE),
 720                         ctx);
 721         if (dir_drive) {
 722                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 723         } else {
 724                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 725         }
 726
 727         homedir = smbldap_talloc_single_attribute(
 728                         ldap_state->smbldap_state->ldap_struct,
 729                         entry,
 730                         get_userattr_key2string(ldap_state->schema_ver,
 731                                 LDAP_ATTR_HOME_PATH),
 732                         ctx);
 733         if (homedir) {
 734                 if (expand_explicit) {
 735                         homedir = talloc_sub_basic(ctx,
 736                                                 username,
 737                                                 domain,
 738                                                 homedir);
 739                         if (!homedir) {
 740                                 goto fn_exit;
 741                         }
 742                 }
 743                 pdb_set_homedir(sampass, homedir, PDB_SET);
 744         } else {
 745                 pdb_set_homedir(sampass,
 746                         talloc_sub_basic(ctx, username, domain,
 747                                          lp_logon_home()),
 748                         PDB_DEFAULT);
 749         }
 750
 751         logon_script = smbldap_talloc_single_attribute(
 752                         ldap_state->smbldap_state->ldap_struct,
 753                         entry,
 754                         get_userattr_key2string(ldap_state->schema_ver,
 755                                 LDAP_ATTR_LOGON_SCRIPT),
 756                         ctx);
 757         if (logon_script) {
 758                 if (expand_explicit) {
 759                         logon_script = talloc_sub_basic(ctx,
 760                                                 username,
 761                                                 domain,
 762                                                 logon_script);
 763                         if (!logon_script) {
 764                                 goto fn_exit;
 765                         }
 766                 }
 767                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
 768         } else {
 769                 pdb_set_logon_script(sampass,
 770                         talloc_sub_basic(ctx, username, domain,
 771                                          lp_logon_script()),
 772                         PDB_DEFAULT );
 773         }
 774
 775         profile_path = smbldap_talloc_single_attribute(
 776                         ldap_state->smbldap_state->ldap_struct,
 777                         entry,
 778                         get_userattr_key2string(ldap_state->schema_ver,
 779                                 LDAP_ATTR_PROFILE_PATH),
 780                         ctx);
 781         if (profile_path) {
 782                 if (expand_explicit) {
 783                         profile_path = talloc_sub_basic(ctx,
 784                                                 username,
 785                                                 domain,
 786                                                 profile_path);
 787                         if (!profile_path) {
 788                                 goto fn_exit;
 789                         }
 790                 }
 791                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
 792         } else {
 793                 pdb_set_profile_path(sampass,
 794                         talloc_sub_basic(ctx, username, domain,
 795                                           lp_logon_path()),
 796                         PDB_DEFAULT );
 797         }
 798
 799         acct_desc = smbldap_talloc_single_attribute(
 800                         ldap_state->smbldap_state->ldap_struct,
 801                         entry,
 802                         get_userattr_key2string(ldap_state->schema_ver,
 803                                 LDAP_ATTR_DESC),
 804                         ctx);
 805         if (acct_desc) {
 806                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 807         }
 808
 809         workstations = smbldap_talloc_single_attribute(
 810                         ldap_state->smbldap_state->ldap_struct,
 811                         entry,
 812                         get_userattr_key2string(ldap_state->schema_ver,
 813                                 LDAP_ATTR_USER_WKS),
 814                         ctx);
 815         if (workstations) {
 816                 pdb_set_workstations(sampass, workstations, PDB_SET);
 817         }
 818
 819         munged_dial = smbldap_talloc_single_attribute(
 820                         ldap_state->smbldap_state->ldap_struct,
 821                         entry,
 822                         get_userattr_key2string(ldap_state->schema_ver,
 823                                 LDAP_ATTR_MUNGED_DIAL),
 824                         ctx);
 825         if (munged_dial) {
 826                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 827         }
 828
 829         /* FIXME: hours stuff should be cleaner */
 830
 831         logon_divs = 168;
 832         hours_len = 21;
 833         memset(hours, 0xff, hours_len);
 834
 835         if (ldap_state->is_nds_ldap) {
 836                 char *user_dn;
 837                 size_t pwd_len;
 838                 char clear_text_pw[512];
 839
 840                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 841                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 842                 user_dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
 843                 if (user_dn != NULL) {
 844                         DEBUG(3, ("init_sam_from_ldap: smbldap_get_dn(%s) returned '%s'\n", username, user_dn));
 845
 846                         pwd_len = sizeof(clear_text_pw);
 847                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 848                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 849                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 850                                         SAFE_FREE(user_dn);
 851                                         return False;
 852                                 }
 853                                 ZERO_STRUCT(smblmpwd);
 854                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 855                                         SAFE_FREE(user_dn);
 856                                         return False;
 857                                 }
 858                                 ZERO_STRUCT(smbntpwd);
 859                                 use_samba_attrs = False;
 860                         }
 861
 862                         SAFE_FREE(user_dn);
 863
 864                 } else {
 865                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 866                 }
 867         }
 868
 869         if (use_samba_attrs) {
 870                 temp = smbldap_talloc_single_attribute(
 871                                 ldap_state->smbldap_state->ldap_struct,
 872                                 entry,
 873                                 get_userattr_key2string(ldap_state->schema_ver,
 874                                         LDAP_ATTR_LMPW),
 875                                 ctx);
 876                 if (temp) {
 877                         pdb_gethexpwd(temp, smblmpwd);
 878                         memset((char *)temp, '\0', strlen(temp)+1);
 879                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 880                                 goto fn_exit;
 881                         }
 882                         ZERO_STRUCT(smblmpwd);
 883                 }
 884
 885                 temp = smbldap_talloc_single_attribute(
 886                                 ldap_state->smbldap_state->ldap_struct,
 887                                 entry,
 888                                 get_userattr_key2string(ldap_state->schema_ver,
 889                                         LDAP_ATTR_NTPW),
 890                                 ctx);
 891                 if (temp) {
 892                         pdb_gethexpwd(temp, smbntpwd);
 893                         memset((char *)temp, '\0', strlen(temp)+1);
 894                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 895                                 goto fn_exit;
 896                         }
 897                         ZERO_STRUCT(smbntpwd);
 898                 }
 899         }
 900
 901         pwHistLen = 0;
 902
 903         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
 904         if (pwHistLen > 0){
 905                 uint8 *pwhist = NULL;
 906                 int i;
 907                 char *history_string = TALLOC_ARRAY(ctx, char,
 908                                                 MAX_PW_HISTORY_LEN*64);
 909
 910                 if (!history_string) {
 911                         goto fn_exit;
 912                 }
 913
 914                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 915
 916                 if ((pwhist = TALLOC_ARRAY(ctx, uint8,
 917                                         pwHistLen * PW_HISTORY_ENTRY_LEN)) ==
 918                                 NULL){
 919                         DEBUG(0, ("init_sam_from_ldap: talloc failed!\n"));
 920                         goto fn_exit;
 921                 }
 922                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 923
 924                 if (smbldap_get_single_attribute(
 925                                 ldap_state->smbldap_state->ldap_struct,
 926                                 entry,
 927                                 get_userattr_key2string(ldap_state->schema_ver,
 928                                         LDAP_ATTR_PWD_HISTORY),
 929                                 history_string,
 930                                 MAX_PW_HISTORY_LEN*64)) {
 931                         bool hex_failed = false;
 932                         for (i = 0; i < pwHistLen; i++){
 933                                 /* Get the 16 byte salt. */
 934                                 if (!pdb_gethexpwd(&history_string[i*64],
 935                                         &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 936                                         hex_failed = true;
 937                                         break;
 938                                 }
 939                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 940                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 941                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+
 942                                                 PW_HISTORY_SALT_LEN])) {
 943                                         hex_failed = True;
 944                                         break;
 945                                 }
 946                         }
 947                         if (hex_failed) {
 948                                 DEBUG(0,("init_sam_from_ldap: Failed to get password history for user %s\n",
 949                                         username));
 950                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 951                         }
 952                 }
 953                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 954                         goto fn_exit;
 955                 }
 956         }
 957
 958         temp = smbldap_talloc_single_attribute(
 959                         ldap_state->smbldap_state->ldap_struct,
 960                         entry,
 961                         get_userattr_key2string(ldap_state->schema_ver,
 962                                 LDAP_ATTR_ACB_INFO),
 963                         ctx);
 964         if (temp) {
 965                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 966
 967                 if (acct_ctrl == 0) {
 968                         acct_ctrl |= ACB_NORMAL;
 969                 }
 970
 971                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 972         } else {
 973                 acct_ctrl |= ACB_NORMAL;
 974         }
 975
 976         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 977         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 978
 979         temp = smbldap_talloc_single_attribute(
 980                         ldap_state->smbldap_state->ldap_struct,
 981                         entry,
 982                         get_userattr_key2string(ldap_state->schema_ver,
 983                                 LDAP_ATTR_BAD_PASSWORD_COUNT),
 984                         ctx);
 985         if (temp) {
 986                 bad_password_count = (uint32) atol(temp);
 987                 pdb_set_bad_password_count(sampass,
 988                                 bad_password_count, PDB_SET);
 989         }
 990
 991         temp = smbldap_talloc_single_attribute(
 992                         ldap_state->smbldap_state->ldap_struct,
 993                         entry,
 994                         get_userattr_key2string(ldap_state->schema_ver,
 995                                 LDAP_ATTR_BAD_PASSWORD_TIME),
 996                         ctx);
 997         if (temp) {
 998                 bad_password_time = (time_t) atol(temp);
 999                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1000         }
1001
1002
1003         temp = smbldap_talloc_single_attribute(
1004                         ldap_state->smbldap_state->ldap_struct,
1005                         entry,
1006                         get_userattr_key2string(ldap_state->schema_ver,
1007                                 LDAP_ATTR_LOGON_COUNT),
1008                         ctx);
1009         if (temp) {
1010                 logon_count = (uint32) atol(temp);
1011                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1012         }
1013
1014         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
1015
1016         temp = smbldap_talloc_single_attribute(
1017                         ldap_state->smbldap_state->ldap_struct,
1018                         entry,
1019                         get_userattr_key2string(ldap_state->schema_ver,
1020                                 LDAP_ATTR_LOGON_HOURS),
1021                         ctx);
1022         if (temp) {
1023                 pdb_gethexhours(temp, hours);
1024                 memset((char *)temp, '\0', strlen(temp) +1);
1025                 pdb_set_hours(sampass, hours, PDB_SET);
1026                 ZERO_STRUCT(hours);
1027         }
1028
1029         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
1030                 temp = smbldap_talloc_single_attribute(
1031                                 priv2ld(ldap_state),
1032                                 entry,
1033                                 "uidNumber",
1034                                 ctx);
1035                 if (temp) {
1036                         /* We've got a uid, feed the cache */
1037                         uid_t uid = strtoul(temp, NULL, 10);
1038                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
1039                 }
1040         }
1041
1042         /* check the timestamp of the cache vs ldap entry */
1043         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
1044                                                             entry))) {
1045                 ret = true;
1046                 goto fn_exit;
1047         }
1048
1049         /* see if we have newer updates */
1050         if (!(cache_entry = login_cache_read(sampass))) {
1051                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
1052                            (unsigned int)pdb_get_bad_password_count(sampass),
1053                            (unsigned int)pdb_get_bad_password_time(sampass)));
1054                 ret = true;
1055                 goto fn_exit;
1056         }
1057
1058         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
1059                   (unsigned int)ldap_entry_time,
1060                   (unsigned int)cache_entry->entry_timestamp,
1061                   (unsigned int)cache_entry->bad_password_time));
1062
1063         if (ldap_entry_time > cache_entry->entry_timestamp) {
1064                 /* cache is older than directory , so
1065                    we need to delete the entry but allow the
1066                    fields to be written out */
1067                 login_cache_delentry(sampass);
1068         } else {
1069                 /* read cache in */
1070                 pdb_set_acct_ctrl(sampass,
1071                                   pdb_get_acct_ctrl(sampass) |
1072                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
1073                                   PDB_SET);
1074                 pdb_set_bad_password_count(sampass,
1075                                            cache_entry->bad_password_count,
1076                                            PDB_SET);
1077                 pdb_set_bad_password_time(sampass,
1078                                           cache_entry->bad_password_time,
1079                                           PDB_SET);
1080         }
1081
1082         ret = true;
1083
1084   fn_exit:
1085
1086         TALLOC_FREE(ctx);
1087         SAFE_FREE(cache_entry);
1088         return ret;
1089 }
1090
1091 /**********************************************************************
1092  Initialize the ldap db from a struct samu. Called on update.
1093  (Based on init_buffer_from_sam in pdb_tdb.c)
1094 *********************************************************************/
1095
1096 static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
1097                                 LDAPMessage *existing,
1098                                 LDAPMod *** mods, struct samu * sampass,
1099                                 bool (*need_update)(const struct samu *,
1100                                                     enum pdb_elements))
1101 {
1102         char *temp = NULL;
1103         uint32 rid;
1104
1105         if (mods == NULL || sampass == NULL) {
1106                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
1107                 return False;
1108         }
1109
1110         *mods = NULL;
1111
1112         /*
1113          * took out adding "objectclass: sambaAccount"
1114          * do this on a per-mod basis
1115          */
1116         if (need_update(sampass, PDB_USERNAME)) {
1117                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1118                               "uid", pdb_get_username(sampass));
1119                 if (ldap_state->is_nds_ldap) {
1120                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1121                                       "cn", pdb_get_username(sampass));
1122                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1123                                       "sn", pdb_get_username(sampass));
1124                 }
1125         }
1126
1127         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
1128
1129         /* only update the RID if we actually need to */
1130         if (need_update(sampass, PDB_USERSID)) {
1131                 fstring sid_string;
1132                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
1133
1134                 switch ( ldap_state->schema_ver ) {
1135                         case SCHEMAVER_SAMBAACCOUNT:
1136                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
1137                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1138                                                   sid_string_dbg(user_sid),
1139                                                   sid_string_dbg(
1140                                                           &ldap_state->domain_sid)));
1141                                         return False;
1142                                 }
1143                                 if (asprintf(&temp, "%i", rid) < 0) {
1144                                         return false;
1145                                 }
1146                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1147                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
1148                                         temp);
1149                                 SAFE_FREE(temp);
1150                                 break;
1151
1152                         case SCHEMAVER_SAMBASAMACCOUNT:
1153                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1154                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1155                                         sid_to_string(sid_string, user_sid));
1156                                 break;
1157
1158                         default:
1159                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1160                                 break;
1161                 }
1162         }
1163
1164         /* we don't need to store the primary group RID - so leaving it
1165            'free' to hang off the unix primary group makes life easier */
1166
1167         if (need_update(sampass, PDB_GROUPSID)) {
1168                 fstring sid_string;
1169                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1170
1171                 switch ( ldap_state->schema_ver ) {
1172                         case SCHEMAVER_SAMBAACCOUNT:
1173                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1174                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1175                                                   sid_string_dbg(group_sid),
1176                                                   sid_string_dbg(
1177                                                           &ldap_state->domain_sid)));
1178                                         return False;
1179                                 }
1180
1181                                 if (asprintf(&temp, "%i", rid) < 0) {
1182                                         return false;
1183                                 }
1184                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1185                                         get_userattr_key2string(ldap_state->schema_ver,
1186                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1187                                 SAFE_FREE(temp);
1188                                 break;
1189
1190                         case SCHEMAVER_SAMBASAMACCOUNT:
1191                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1192                                         get_userattr_key2string(ldap_state->schema_ver,
1193                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_string(sid_string, group_sid));
1194                                 break;
1195
1196                         default:
1197                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1198                                 break;
1199                 }
1200
1201         }
1202
1203         /* displayName, cn, and gecos should all be the same
1204          *  most easily accomplished by giving them the same OID
1205          *  gecos isn't set here b/c it should be handled by the
1206          *  add-user script
1207          *  We change displayName only and fall back to cn if
1208          *  it does not exist.
1209          */
1210
1211         if (need_update(sampass, PDB_FULLNAME))
1212                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1213                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1214                         pdb_get_fullname(sampass));
1215
1216         if (need_update(sampass, PDB_ACCTDESC))
1217                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1218                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1219                         pdb_get_acct_desc(sampass));
1220
1221         if (need_update(sampass, PDB_WORKSTATIONS))
1222                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1223                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1224                         pdb_get_workstations(sampass));
1225
1226         if (need_update(sampass, PDB_MUNGEDDIAL))
1227                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1228                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1229                         pdb_get_munged_dial(sampass));
1230
1231         if (need_update(sampass, PDB_SMBHOME))
1232                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1233                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1234                         pdb_get_homedir(sampass));
1235
1236         if (need_update(sampass, PDB_DRIVE))
1237                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1238                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1239                         pdb_get_dir_drive(sampass));
1240
1241         if (need_update(sampass, PDB_LOGONSCRIPT))
1242                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1243                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1244                         pdb_get_logon_script(sampass));
1245
1246         if (need_update(sampass, PDB_PROFILE))
1247                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1248                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1249                         pdb_get_profile_path(sampass));
1250
1251         if (asprintf(&temp, "%li", pdb_get_logon_time(sampass)) < 0) {
1252                 return false;
1253         }
1254         if (need_update(sampass, PDB_LOGONTIME))
1255                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1256                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1257         SAFE_FREE(temp);
1258
1259         if (asprintf(&temp, "%li", pdb_get_logoff_time(sampass)) < 0) {
1260                 return false;
1261         }
1262         if (need_update(sampass, PDB_LOGOFFTIME))
1263                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1264                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1265         SAFE_FREE(temp);
1266
1267         if (asprintf(&temp, "%li", pdb_get_kickoff_time(sampass)) < 0) {
1268                 return false;
1269         }
1270         if (need_update(sampass, PDB_KICKOFFTIME))
1271                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1272                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1273         SAFE_FREE(temp);
1274
1275         if (asprintf(&temp, "%li", pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
1276                 return false;
1277         }
1278         if (need_update(sampass, PDB_CANCHANGETIME))
1279                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1280                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1281         SAFE_FREE(temp);
1282
1283         if (asprintf(&temp, "%li", pdb_get_pass_must_change_time(sampass)) < 0) {
1284                 return false;
1285         }
1286         if (need_update(sampass, PDB_MUSTCHANGETIME))
1287                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1288                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1289         SAFE_FREE(temp);
1290
1291         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1292                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1293
1294                 if (need_update(sampass, PDB_LMPASSWD)) {
1295                         const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
1296                         if (lm_pw) {
1297                                 char pwstr[34];
1298                                 pdb_sethexpwd(pwstr, lm_pw,
1299                                               pdb_get_acct_ctrl(sampass));
1300                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1301                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1302                                                  pwstr);
1303                         } else {
1304                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1305                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1306                                                  NULL);
1307                         }
1308                 }
1309                 if (need_update(sampass, PDB_NTPASSWD)) {
1310                         const uchar *nt_pw = pdb_get_nt_passwd(sampass);
1311                         if (nt_pw) {
1312                                 char pwstr[34];
1313                                 pdb_sethexpwd(pwstr, nt_pw,
1314                                               pdb_get_acct_ctrl(sampass));
1315                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1316                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1317                                                  pwstr);
1318                         } else {
1319                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1320                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1321                                                  NULL);
1322                         }
1323                 }
1324
1325                 if (need_update(sampass, PDB_PWHISTORY)) {
1326                         char *pwstr = NULL;
1327                         uint32 pwHistLen = 0;
1328                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1329
1330                         pwstr = SMB_MALLOC_ARRAY(char, 1024);
1331                         if (!pwstr) {
1332                                 return false;
1333                         }
1334                         if (pwHistLen == 0) {
1335                                 /* Remove any password history from the LDAP store. */
1336                                 memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1337                                 pwstr[64] = '\0';
1338                         } else {
1339                                 int i;
1340                                 uint32 currHistLen = 0;
1341                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1342                                 if (pwhist != NULL) {
1343                                         /* We can only store (1024-1/64 password history entries. */
1344                                         pwHistLen = MIN(pwHistLen, ((1024-1)/64));
1345                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1346                                                 /* Store the salt. */
1347                                                 pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1348                                                 /* Followed by the md5 hash of salt + md4 hash */
1349                                                 pdb_sethexpwd(&pwstr[(i*64)+32],
1350                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1351                                                 DEBUG(100, ("pwstr=%s\n", pwstr));
1352                                         }
1353                                 }
1354                         }
1355                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1356                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1357                                          pwstr);
1358                         SAFE_FREE(pwstr);
1359                 }
1360
1361                 if (need_update(sampass, PDB_PASSLASTSET)) {
1362                         if (asprintf(&temp, "%li",
1363                                 pdb_get_pass_last_set_time(sampass)) < 0) {
1364                                 return false;
1365                         }
1366                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1367                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1368                                 temp);
1369                         SAFE_FREE(temp);
1370                 }
1371         }
1372
1373         if (need_update(sampass, PDB_HOURS)) {
1374                 const uint8 *hours = pdb_get_hours(sampass);
1375                 if (hours) {
1376                         char hourstr[44];
1377                         pdb_sethexhours(hourstr, hours);
1378                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1379                                 existing,
1380                                 mods,
1381                                 get_userattr_key2string(ldap_state->schema_ver,
1382                                                 LDAP_ATTR_LOGON_HOURS),
1383                                 hourstr);
1384                 }
1385         }
1386
1387         if (need_update(sampass, PDB_ACCTCTRL))
1388                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1389                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1390                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1391
1392         /* password lockout cache:
1393            - If we are now autolocking or clearing, we write to ldap
1394            - If we are clearing, we delete the cache entry
1395            - If the count is > 0, we update the cache
1396
1397            This even means when autolocking, we cache, just in case the
1398            update doesn't work, and we have to cache the autolock flag */
1399
1400         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1401             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1402                 uint16 badcount = pdb_get_bad_password_count(sampass);
1403                 time_t badtime = pdb_get_bad_password_time(sampass);
1404                 uint32 pol;
1405                 pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &pol);
1406
1407                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1408                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1409
1410                 if ((badcount >= pol) || (badcount == 0)) {
1411                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1412                                 (unsigned int)badcount, (unsigned int)badtime));
1413                         if (asprintf(&temp, "%li", (long)badcount) < 0) {
1414                                 return false;
1415                         }
1416                         smbldap_make_mod(
1417                                 ldap_state->smbldap_state->ldap_struct,
1418                                 existing, mods,
1419                                 get_userattr_key2string(
1420                                         ldap_state->schema_ver,
1421                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1422                                 temp);
1423                         SAFE_FREE(temp);
1424
1425                         if (asprintf(&temp, "%li", badtime) < 0) {
1426                                 return false;
1427                         }
1428                         smbldap_make_mod(
1429                                 ldap_state->smbldap_state->ldap_struct,
1430                                 existing, mods,
1431                                 get_userattr_key2string(
1432                                         ldap_state->schema_ver,
1433                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1434                                 temp);
1435                         SAFE_FREE(temp);
1436                 }
1437                 if (badcount == 0) {
1438                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1439                         login_cache_delentry(sampass);
1440                 } else {
1441                         LOGIN_CACHE cache_entry;
1442
1443                         cache_entry.entry_timestamp = time(NULL);
1444                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1445                         cache_entry.bad_password_count = badcount;
1446                         cache_entry.bad_password_time = badtime;
1447
1448                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1449                         login_cache_write(sampass, cache_entry);
1450                 }
1451         }
1452
1453         return True;
1454 }
1455
1456 /**********************************************************************
1457  Connect to LDAP server for password enumeration.
1458 *********************************************************************/
1459
1460 static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, bool update, uint32 acb_mask)
1461 {
1462         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1463         int rc;
1464         char *filter = NULL;
1465         const char *suffix;
1466         const char **attr_list;
1467         bool machine_mask = False, user_mask = False;
1468         NTSTATUS status = NT_STATUS_OK;
1469         TALLOC_CTX *ctx = talloc_init("ldapsam_setsampwent");
1470
1471         if (!ctx) {
1472                 return NT_STATUS_NO_MEMORY;
1473         }
1474         filter = talloc_asprintf(ctx, "(&%s%s)", "(uid=%u)",
1475                 get_objclass_filter(ldap_state->schema_ver));
1476         if (!filter) {
1477                 status = NT_STATUS_NO_MEMORY;
1478                 goto out;
1479         }
1480
1481         filter = talloc_all_string_sub(ctx, filter, "%u", "*");
1482         if (!filter) {
1483                 status = NT_STATUS_NO_MEMORY;
1484                 goto out;
1485         }
1486
1487         machine_mask    = ((acb_mask != 0) && (acb_mask & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)));
1488         user_mask       = ((acb_mask != 0) && (acb_mask & ACB_NORMAL));
1489
1490         if (machine_mask) {
1491                 suffix = lp_ldap_machine_suffix();
1492         } else if (user_mask) {
1493                 suffix = lp_ldap_user_suffix();
1494         } else {
1495                 suffix = lp_ldap_suffix();
1496         }
1497
1498         DEBUG(10,("ldapsam_setsampwent: LDAP Query for acb_mask 0x%x will use suffix %s\n",
1499                 acb_mask, suffix));
1500
1501         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1502         rc = smbldap_search(ldap_state->smbldap_state, suffix, LDAP_SCOPE_SUBTREE, filter,
1503                             attr_list, 0, &ldap_state->result);
1504         TALLOC_FREE( attr_list );
1505
1506         if (rc != LDAP_SUCCESS) {
1507                 DEBUG(0, ("ldapsam_setsampwent: LDAP search failed: %s\n", ldap_err2string(rc)));
1508                 DEBUG(3, ("ldapsam_setsampwent: Query was: %s, %s\n", suffix, filter));
1509                 ldap_msgfree(ldap_state->result);
1510                 ldap_state->result = NULL;
1511                 status = NT_STATUS_UNSUCCESSFUL;
1512                 goto out;
1513         }
1514
1515         DEBUG(2, ("ldapsam_setsampwent: %d entries in the base %s\n",
1516                 ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
1517                 ldap_state->result), suffix));
1518
1519         ldap_state->entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
1520                                  ldap_state->result);
1521         ldap_state->index = 0;
1522
1523   out:
1524
1525         TALLOC_FREE(ctx);
1526         return status;
1527 }
1528
1529 /**********************************************************************
1530  End enumeration of the LDAP password list.
1531 *********************************************************************/
1532
1533 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1534 {
1535         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1536         if (ldap_state->result) {
1537                 ldap_msgfree(ldap_state->result);
1538                 ldap_state->result = NULL;
1539         }
1540 }
1541
1542 /**********************************************************************
1543 Get the next entry in the LDAP password database.
1544 *********************************************************************/
1545
1546 static NTSTATUS ldapsam_getsampwent(struct pdb_methods *my_methods,
1547                                     struct samu *user)
1548 {
1549         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1550         struct ldapsam_privates *ldap_state =
1551                 (struct ldapsam_privates *)my_methods->private_data;
1552         bool bret = False;
1553
1554         while (!bret) {
1555                 if (!ldap_state->entry)
1556                         return ret;
1557
1558                 ldap_state->index++;
1559                 bret = init_sam_from_ldap(ldap_state, user, ldap_state->entry);
1560
1561                 ldap_state->entry = ldap_next_entry(priv2ld(ldap_state),
1562                                                     ldap_state->entry);
1563         }
1564
1565         return NT_STATUS_OK;
1566 }
1567
1568 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1569                         const char *new_attr)
1570 {
1571         int i;
1572
1573         if (new_attr == NULL) {
1574                 return;
1575         }
1576
1577         for (i=0; (*attr_list)[i] != NULL; i++) {
1578                 ;
1579         }
1580
1581         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1582                                             const char *,  i+2);
1583         SMB_ASSERT((*attr_list) != NULL);
1584         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1585         (*attr_list)[i+1] = NULL;
1586 }
1587
1588 /**********************************************************************
1589 Get struct samu entry from LDAP by username.
1590 *********************************************************************/
1591
1592 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1593 {
1594         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1595         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1596         LDAPMessage *result = NULL;
1597         LDAPMessage *entry = NULL;
1598         int count;
1599         const char ** attr_list;
1600         int rc;
1601
1602         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1603         append_attr(user, &attr_list,
1604                     get_userattr_key2string(ldap_state->schema_ver,
1605                                             LDAP_ATTR_MOD_TIMESTAMP));
1606         append_attr(user, &attr_list, "uidNumber");
1607         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1608                                            attr_list);
1609         TALLOC_FREE( attr_list );
1610
1611         if ( rc != LDAP_SUCCESS )
1612                 return NT_STATUS_NO_SUCH_USER;
1613
1614         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1615
1616         if (count < 1) {
1617                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1618                 ldap_msgfree(result);
1619                 return NT_STATUS_NO_SUCH_USER;
1620         } else if (count > 1) {
1621                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1622                 ldap_msgfree(result);
1623                 return NT_STATUS_NO_SUCH_USER;
1624         }
1625
1626         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1627         if (entry) {
1628                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1629                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1630                         ldap_msgfree(result);
1631                         return NT_STATUS_NO_SUCH_USER;
1632                 }
1633                 pdb_set_backend_private_data(user, result, NULL,
1634                                              my_methods, PDB_CHANGED);
1635                 talloc_autofree_ldapmsg(user, result);
1636                 ret = NT_STATUS_OK;
1637         } else {
1638                 ldap_msgfree(result);
1639         }
1640         return ret;
1641 }
1642
1643 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1644                                    const DOM_SID *sid, LDAPMessage **result)
1645 {
1646         int rc = -1;
1647         const char ** attr_list;
1648         uint32 rid;
1649
1650         switch ( ldap_state->schema_ver ) {
1651                 case SCHEMAVER_SAMBASAMACCOUNT: {
1652                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1653                         if (tmp_ctx == NULL) {
1654                                 return LDAP_NO_MEMORY;
1655                         }
1656
1657                         attr_list = get_userattr_list(tmp_ctx,
1658                                                       ldap_state->schema_ver);
1659                         append_attr(tmp_ctx, &attr_list,
1660                                     get_userattr_key2string(
1661                                             ldap_state->schema_ver,
1662                                             LDAP_ATTR_MOD_TIMESTAMP));
1663                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1664                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1665                                                           result, attr_list);
1666                         TALLOC_FREE(tmp_ctx);
1667
1668                         if ( rc != LDAP_SUCCESS )
1669                                 return rc;
1670                         break;
1671                 }
1672
1673                 case SCHEMAVER_SAMBAACCOUNT:
1674                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1675                                 return rc;
1676                         }
1677
1678                         attr_list = get_userattr_list(NULL,
1679                                                       ldap_state->schema_ver);
1680                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1681                         TALLOC_FREE( attr_list );
1682
1683                         if ( rc != LDAP_SUCCESS )
1684                                 return rc;
1685                         break;
1686         }
1687         return rc;
1688 }
1689
1690 /**********************************************************************
1691  Get struct samu entry from LDAP by SID.
1692 *********************************************************************/
1693
1694 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1695 {
1696         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1697         LDAPMessage *result = NULL;
1698         LDAPMessage *entry = NULL;
1699         int count;
1700         int rc;
1701
1702         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1703                                           sid, &result);
1704         if (rc != LDAP_SUCCESS)
1705                 return NT_STATUS_NO_SUCH_USER;
1706
1707         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1708
1709         if (count < 1) {
1710                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
1711                           "count=%d\n", sid_string_dbg(sid), count));
1712                 ldap_msgfree(result);
1713                 return NT_STATUS_NO_SUCH_USER;
1714         }  else if (count > 1) {
1715                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
1716                           "[%s]. Failing. count=%d\n", sid_string_dbg(sid),
1717                           count));
1718                 ldap_msgfree(result);
1719                 return NT_STATUS_NO_SUCH_USER;
1720         }
1721
1722         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1723         if (!entry) {
1724                 ldap_msgfree(result);
1725                 return NT_STATUS_NO_SUCH_USER;
1726         }
1727
1728         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1729                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1730                 ldap_msgfree(result);
1731                 return NT_STATUS_NO_SUCH_USER;
1732         }
1733
1734         pdb_set_backend_private_data(user, result, NULL,
1735                                      my_methods, PDB_CHANGED);
1736         talloc_autofree_ldapmsg(user, result);
1737         return NT_STATUS_OK;
1738 }
1739
1740 /********************************************************************
1741  Do the actual modification - also change a plaintext passord if
1742  it it set.
1743 **********************************************************************/
1744
1745 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1746                                      struct samu *newpwd, char *dn,
1747                                      LDAPMod **mods, int ldap_op,
1748                                      bool (*need_update)(const struct samu *, enum pdb_elements))
1749 {
1750         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1751         int rc;
1752
1753         if (!newpwd || !dn) {
1754                 return NT_STATUS_INVALID_PARAMETER;
1755         }
1756
1757         if (!mods) {
1758                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1759                 /* may be password change below however */
1760         } else {
1761                 switch(ldap_op) {
1762                         case LDAP_MOD_ADD:
1763                                 if (ldap_state->is_nds_ldap) {
1764                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1765                                                         "objectclass",
1766                                                         "inetOrgPerson");
1767                                 } else {
1768                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1769                                                         "objectclass",
1770                                                         LDAP_OBJ_ACCOUNT);
1771                                 }
1772                                 rc = smbldap_add(ldap_state->smbldap_state,
1773                                                  dn, mods);
1774                                 break;
1775                         case LDAP_MOD_REPLACE:
1776                                 rc = smbldap_modify(ldap_state->smbldap_state,
1777                                                     dn ,mods);
1778                                 break;
1779                         default:
1780                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1781                                          ldap_op));
1782                                 return NT_STATUS_INVALID_PARAMETER;
1783                 }
1784
1785                 if (rc!=LDAP_SUCCESS) {
1786                         return NT_STATUS_UNSUCCESSFUL;
1787                 }
1788         }
1789
1790         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1791                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1792                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1793                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1794                 BerElement *ber;
1795                 struct berval *bv;
1796                 char *retoid = NULL;
1797                 struct berval *retdata = NULL;
1798                 char *utf8_password;
1799                 char *utf8_dn;
1800
1801                 if (!ldap_state->is_nds_ldap) {
1802
1803                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1804                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1805                                 DEBUG(2, ("ldap password change requested, but LDAP "
1806                                           "server does not support it -- ignoring\n"));
1807                                 return NT_STATUS_OK;
1808                         }
1809                 }
1810
1811                 if (push_utf8_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
1812                         return NT_STATUS_NO_MEMORY;
1813                 }
1814
1815                 if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
1816                         SAFE_FREE(utf8_password);
1817                         return NT_STATUS_NO_MEMORY;
1818                 }
1819
1820                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1821                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1822                         SAFE_FREE(utf8_password);
1823                         SAFE_FREE(utf8_dn);
1824                         return NT_STATUS_UNSUCCESSFUL;
1825                 }
1826
1827                 ber_printf (ber, "{");
1828                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn);
1829                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password);
1830                 ber_printf (ber, "n}");
1831
1832                 if ((rc = ber_flatten (ber, &bv))<0) {
1833                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1834                         ber_free(ber,1);
1835                         SAFE_FREE(utf8_dn);
1836                         SAFE_FREE(utf8_password);
1837                         return NT_STATUS_UNSUCCESSFUL;
1838                 }
1839
1840                 SAFE_FREE(utf8_dn);
1841                 SAFE_FREE(utf8_password);
1842                 ber_free(ber, 1);
1843
1844                 if (!ldap_state->is_nds_ldap) {
1845                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1846                                                         LDAP_EXOP_MODIFY_PASSWD,
1847                                                         bv, NULL, NULL, &retoid,
1848                                                         &retdata);
1849                 } else {
1850                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1851                                                         pdb_get_plaintext_passwd(newpwd));
1852                 }
1853                 if (rc != LDAP_SUCCESS) {
1854                         char *ld_error = NULL;
1855
1856                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1857                                 DEBUG(3, ("Could not set userPassword "
1858                                           "attribute due to an objectClass "
1859                                           "violation -- ignoring\n"));
1860                                 ber_bvfree(bv);
1861                                 return NT_STATUS_OK;
1862                         }
1863
1864                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1865                                         &ld_error);
1866                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1867                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1868                         SAFE_FREE(ld_error);
1869                         ber_bvfree(bv);
1870                         return NT_STATUS_UNSUCCESSFUL;
1871                 } else {
1872                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1873 #ifdef DEBUG_PASSWORD
1874                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1875 #endif
1876                         if (retdata)
1877                                 ber_bvfree(retdata);
1878                         if (retoid)
1879                                 ldap_memfree(retoid);
1880                 }
1881                 ber_bvfree(bv);
1882         }
1883         return NT_STATUS_OK;
1884 }
1885
1886 /**********************************************************************
1887  Delete entry from LDAP for username.
1888 *********************************************************************/
1889
1890 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1891                                            struct samu * sam_acct)
1892 {
1893         struct ldapsam_privates *priv =
1894                 (struct ldapsam_privates *)my_methods->private_data;
1895         const char *sname;
1896         int rc;
1897         LDAPMessage *msg, *entry;
1898         NTSTATUS result = NT_STATUS_NO_MEMORY;
1899         const char **attr_list;
1900         TALLOC_CTX *mem_ctx;
1901
1902         if (!sam_acct) {
1903                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1904                 return NT_STATUS_INVALID_PARAMETER;
1905         }
1906
1907         sname = pdb_get_username(sam_acct);
1908
1909         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1910                   "LDAP.\n", sname));
1911
1912         mem_ctx = talloc_new(NULL);
1913         if (mem_ctx == NULL) {
1914                 DEBUG(0, ("talloc_new failed\n"));
1915                 goto done;
1916         }
1917
1918         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1919         if (attr_list == NULL) {
1920                 goto done;
1921         }
1922
1923         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1924
1925         if ((rc != LDAP_SUCCESS) ||
1926             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1927             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1928                 DEBUG(5, ("Could not find user %s\n", sname));
1929                 result = NT_STATUS_NO_SUCH_USER;
1930                 goto done;
1931         }
1932
1933         rc = ldapsam_delete_entry(
1934                 priv, mem_ctx, entry,
1935                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1936                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1937                 attr_list);
1938
1939         result = (rc == LDAP_SUCCESS) ?
1940                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1941
1942  done:
1943         TALLOC_FREE(mem_ctx);
1944         return result;
1945 }
1946
1947 /**********************************************************************
1948  Helper function to determine for update_sam_account whether
1949  we need LDAP modification.
1950 *********************************************************************/
1951
1952 static bool element_is_changed(const struct samu *sampass,
1953                                enum pdb_elements element)
1954 {
1955         return IS_SAM_CHANGED(sampass, element);
1956 }
1957
1958 /**********************************************************************
1959  Update struct samu.
1960 *********************************************************************/
1961
1962 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1963 {
1964         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1965         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1966         int rc = 0;
1967         char *dn;
1968         LDAPMessage *result = NULL;
1969         LDAPMessage *entry = NULL;
1970         LDAPMod **mods = NULL;
1971         const char **attr_list;
1972
1973         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1974         if (!result) {
1975                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1976                 if (pdb_get_username(newpwd) == NULL) {
1977                         return NT_STATUS_INVALID_PARAMETER;
1978                 }
1979                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1980                 TALLOC_FREE( attr_list );
1981                 if (rc != LDAP_SUCCESS) {
1982                         return NT_STATUS_UNSUCCESSFUL;
1983                 }
1984                 pdb_set_backend_private_data(newpwd, result, NULL,
1985                                              my_methods, PDB_CHANGED);
1986                 talloc_autofree_ldapmsg(newpwd, result);
1987         }
1988
1989         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1990                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1991                 return NT_STATUS_UNSUCCESSFUL;
1992         }
1993
1994         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1995         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
1996         if (!dn) {
1997                 return NT_STATUS_UNSUCCESSFUL;
1998         }
1999
2000         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
2001
2002         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2003                                 element_is_changed)) {
2004                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
2005                 SAFE_FREE(dn);
2006                 if (mods != NULL)
2007                         ldap_mods_free(mods,True);
2008                 return NT_STATUS_UNSUCCESSFUL;
2009         }
2010
2011         if (mods == NULL) {
2012                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
2013                          pdb_get_username(newpwd)));
2014                 SAFE_FREE(dn);
2015                 return NT_STATUS_OK;
2016         }
2017
2018         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
2019         ldap_mods_free(mods,True);
2020         SAFE_FREE(dn);
2021
2022         /*
2023          * We need to set the backend private data to NULL here. For example
2024          * setuserinfo level 25 does a pdb_update_sam_account twice on the
2025          * same one, and with the explicit delete / add logic for attribute
2026          * values the second time we would use the wrong "old" value which
2027          * does not exist in LDAP anymore. Thus the LDAP server would refuse
2028          * the update.
2029          * The existing LDAPMessage is still being auto-freed by the
2030          * destructor.
2031          */
2032         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
2033                                      PDB_CHANGED);
2034
2035         if (!NT_STATUS_IS_OK(ret)) {
2036                 return ret;
2037         }
2038
2039         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
2040                   pdb_get_username(newpwd)));
2041         return NT_STATUS_OK;
2042 }
2043
2044 /***************************************************************************
2045  Renames a struct samu
2046  - The "rename user script" has full responsibility for changing everything
2047 ***************************************************************************/
2048
2049 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
2050                                            struct samu *old_acct,
2051                                            const char *newname)
2052 {
2053         const char *oldname;
2054         int rc;
2055         char *rename_script = NULL;
2056         fstring oldname_lower, newname_lower;
2057
2058         if (!old_acct) {
2059                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
2060                 return NT_STATUS_INVALID_PARAMETER;
2061         }
2062         if (!newname) {
2063                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
2064                 return NT_STATUS_INVALID_PARAMETER;
2065         }
2066
2067         oldname = pdb_get_username(old_acct);
2068
2069         /* rename the posix user */
2070         rename_script = SMB_STRDUP(lp_renameuser_script());
2071         if (rename_script) {
2072                 return NT_STATUS_NO_MEMORY;
2073         }
2074
2075         if (!(*rename_script)) {
2076                 SAFE_FREE(rename_script);
2077                 return NT_STATUS_ACCESS_DENIED;
2078         }
2079
2080         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
2081                    oldname, newname));
2082
2083         /* We have to allow the account name to end with a '$'.
2084            Also, follow the semantics in _samr_create_user() and lower case the
2085            posix name but preserve the case in passdb */
2086
2087         fstrcpy( oldname_lower, oldname );
2088         strlower_m( oldname_lower );
2089         fstrcpy( newname_lower, newname );
2090         strlower_m( newname_lower );
2091         rename_script = realloc_string_sub2(rename_script,
2092                                         "%unew",
2093                                         newname_lower,
2094                                         true,
2095                                         true);
2096         if (rename_script) {
2097                 return NT_STATUS_NO_MEMORY;
2098         }
2099         rename_script = realloc_string_sub2(rename_script,
2100                                         "%uold",
2101                                         oldname_lower,
2102                                         true,
2103                                         true);
2104         rc = smbrun(rename_script, NULL);
2105
2106         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2107                           rename_script, rc));
2108
2109         SAFE_FREE(rename_script);
2110
2111         if (rc == 0) {
2112                 smb_nscd_flush_user_cache();
2113         }
2114
2115         if (rc)
2116                 return NT_STATUS_UNSUCCESSFUL;
2117
2118         return NT_STATUS_OK;
2119 }
2120
2121 /**********************************************************************
2122  Helper function to determine for update_sam_account whether
2123  we need LDAP modification.
2124  *********************************************************************/
2125
2126 static bool element_is_set_or_changed(const struct samu *sampass,
2127                                       enum pdb_elements element)
2128 {
2129         return (IS_SAM_SET(sampass, element) ||
2130                 IS_SAM_CHANGED(sampass, element));
2131 }
2132
2133 /**********************************************************************
2134  Add struct samu to LDAP.
2135 *********************************************************************/
2136
2137 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2138 {
2139         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2140         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2141         int rc;
2142         LDAPMessage     *result = NULL;
2143         LDAPMessage     *entry  = NULL;
2144         LDAPMod         **mods = NULL;
2145         int             ldap_op = LDAP_MOD_REPLACE;
2146         uint32          num_result;
2147         const char      **attr_list;
2148         char *escape_user = NULL;
2149         const char      *username = pdb_get_username(newpwd);
2150         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
2151         char *filter = NULL;
2152         char *dn = NULL;
2153         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2154         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2155
2156         if (!ctx) {
2157                 return NT_STATUS_NO_MEMORY;
2158         }
2159
2160         if (!username || !*username) {
2161                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2162                 status = NT_STATUS_INVALID_PARAMETER;
2163                 goto fn_exit;
2164         }
2165
2166         /* free this list after the second search or in case we exit on failure */
2167         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2168
2169         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2170
2171         if (rc != LDAP_SUCCESS) {
2172                 goto fn_exit;
2173         }
2174
2175         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2176                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2177                          username));
2178                 goto fn_exit;
2179         }
2180         ldap_msgfree(result);
2181         result = NULL;
2182
2183         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2184                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2185                                                   sid, &result);
2186                 if (rc == LDAP_SUCCESS) {
2187                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2188                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2189                                          "already in the base, with samba "
2190                                          "attributes\n", sid_string_dbg(sid)));
2191                                 goto fn_exit;
2192                         }
2193                         ldap_msgfree(result);
2194                         result = NULL;
2195                 }
2196         }
2197
2198         /* does the entry already exist but without a samba attributes?
2199            we need to return the samba attributes here */
2200
2201         escape_user = escape_ldap_string_alloc( username );
2202         filter = talloc_strdup(attr_list, "(uid=%u)");
2203         if (!filter) {
2204                 status = NT_STATUS_NO_MEMORY;
2205                 goto fn_exit;
2206         }
2207         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2208         if (!filter) {
2209                 status = NT_STATUS_NO_MEMORY;
2210                 goto fn_exit;
2211         }
2212         SAFE_FREE(escape_user);
2213
2214         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2215                                    filter, attr_list, &result);
2216         if ( rc != LDAP_SUCCESS ) {
2217                 goto fn_exit;
2218         }
2219
2220         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2221
2222         if (num_result > 1) {
2223                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2224                 goto fn_exit;
2225         }
2226
2227         /* Check if we need to update an existing entry */
2228         if (num_result == 1) {
2229                 char *tmp;
2230
2231                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2232                 ldap_op = LDAP_MOD_REPLACE;
2233                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2234                 tmp = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
2235                 if (!tmp) {
2236                         goto fn_exit;
2237                 }
2238                 dn = talloc_asprintf(ctx, "%s", tmp);
2239                 SAFE_FREE(tmp);
2240                 if (!dn) {
2241                         status = NT_STATUS_NO_MEMORY;
2242                         goto fn_exit;
2243                 }
2244
2245         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2246
2247                 /* There might be a SID for this account already - say an idmap entry */
2248
2249                 filter = talloc_asprintf(ctx,
2250                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2251                                  get_userattr_key2string(ldap_state->schema_ver,
2252                                          LDAP_ATTR_USER_SID),
2253                                  sid_string_talloc(ctx, sid),
2254                                  LDAP_OBJ_IDMAP_ENTRY,
2255                                  LDAP_OBJ_SID_ENTRY);
2256                 if (!filter) {
2257                         status = NT_STATUS_NO_MEMORY;
2258                         goto fn_exit;
2259                 }
2260
2261                 /* free old result before doing a new search */
2262                 if (result != NULL) {
2263                         ldap_msgfree(result);
2264                         result = NULL;
2265                 }
2266                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2267                                            filter, attr_list, &result);
2268
2269                 if ( rc != LDAP_SUCCESS ) {
2270                         goto fn_exit;
2271                 }
2272
2273                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2274
2275                 if (num_result > 1) {
2276                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2277                         goto fn_exit;
2278                 }
2279
2280                 /* Check if we need to update an existing entry */
2281                 if (num_result == 1) {
2282                         char *tmp;
2283
2284                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2285                         ldap_op = LDAP_MOD_REPLACE;
2286                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2287                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2288                         if (!tmp) {
2289                                 goto fn_exit;
2290                         }
2291                         dn = talloc_asprintf(ctx, "%s", tmp);
2292                         SAFE_FREE(tmp);
2293                         if (!dn) {
2294                                 status = NT_STATUS_NO_MEMORY;
2295                                 goto fn_exit;
2296                         }
2297                 }
2298         }
2299
2300         if (num_result == 0) {
2301                 char *escape_username;
2302                 /* Check if we need to add an entry */
2303                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2304                 ldap_op = LDAP_MOD_ADD;
2305
2306                 escape_username = escape_rdn_val_string_alloc(username);
2307                 if (!escape_username) {
2308                         status = NT_STATUS_NO_MEMORY;
2309                         goto fn_exit;
2310                 }
2311
2312                 if (username[strlen(username)-1] == '$') {
2313                         dn = talloc_asprintf(ctx,
2314                                         "uid=%s,%s",
2315                                         escape_username,
2316                                         lp_ldap_machine_suffix());
2317                 } else {
2318                         dn = talloc_asprintf(ctx,
2319                                         "uid=%s,%s",
2320                                         escape_username,
2321                                         lp_ldap_user_suffix());
2322                 }
2323
2324                 SAFE_FREE(escape_username);
2325                 if (!dn) {
2326                         status = NT_STATUS_NO_MEMORY;
2327                         goto fn_exit;
2328                 }
2329         }
2330
2331         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2332                                 element_is_set_or_changed)) {
2333                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2334                 if (mods != NULL) {
2335                         ldap_mods_free(mods, true);
2336                 }
2337                 goto fn_exit;
2338         }
2339
2340         if (mods == NULL) {
2341                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2342                 goto fn_exit;
2343         }
2344         switch ( ldap_state->schema_ver ) {
2345                 case SCHEMAVER_SAMBAACCOUNT:
2346                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2347                         break;
2348                 case SCHEMAVER_SAMBASAMACCOUNT:
2349                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2350                         break;
2351                 default:
2352                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2353                         break;
2354         }
2355
2356         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2357         if (!NT_STATUS_IS_OK(ret)) {
2358                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2359                          pdb_get_username(newpwd),dn));
2360                 ldap_mods_free(mods, true);
2361                 goto fn_exit;
2362         }
2363
2364         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2365         ldap_mods_free(mods, true);
2366
2367         status = NT_STATUS_OK;
2368
2369   fn_exit:
2370
2371         TALLOC_FREE(ctx);
2372         SAFE_FREE(escape_user);
2373         if (result) {
2374                 ldap_msgfree(result);
2375         }
2376         return status;
2377 }
2378
2379 /**********************************************************************
2380  *********************************************************************/
2381
2382 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2383                                      const char *filter,
2384                                      LDAPMessage ** result)
2385 {
2386         int scope = LDAP_SCOPE_SUBTREE;
2387         int rc;
2388         const char **attr_list;
2389
2390         attr_list = get_attr_list(NULL, groupmap_attr_list);
2391         rc = smbldap_search(ldap_state->smbldap_state,
2392                             lp_ldap_group_suffix (), scope,
2393                             filter, attr_list, 0, result);
2394         TALLOC_FREE(attr_list);
2395
2396         return rc;
2397 }
2398
2399 /**********************************************************************
2400  *********************************************************************/
2401
2402 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2403                                  GROUP_MAP *map, LDAPMessage *entry)
2404 {
2405         char *temp = NULL;
2406         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2407
2408         if (ldap_state == NULL || map == NULL || entry == NULL ||
2409                         ldap_state->smbldap_state->ldap_struct == NULL) {
2410                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2411                 TALLOC_FREE(ctx);
2412                 return false;
2413         }
2414
2415         temp = smbldap_talloc_single_attribute(
2416                         ldap_state->smbldap_state->ldap_struct,
2417                         entry,
2418                         get_attr_key2string(groupmap_attr_list,
2419                                 LDAP_ATTR_GIDNUMBER),
2420                         ctx);
2421         if (!temp) {
2422                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2423                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2424                 TALLOC_FREE(ctx);
2425                 return false;
2426         }
2427         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2428
2429         map->gid = (gid_t)atol(temp);
2430
2431         TALLOC_FREE(temp);
2432         temp = smbldap_talloc_single_attribute(
2433                         ldap_state->smbldap_state->ldap_struct,
2434                         entry,
2435                         get_attr_key2string(groupmap_attr_list,
2436                                 LDAP_ATTR_GROUP_SID),
2437                         ctx);
2438         if (!temp) {
2439                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2440                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2441                 TALLOC_FREE(ctx);
2442                 return false;
2443         }
2444
2445         if (!string_to_sid(&map->sid, temp)) {
2446                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2447                 TALLOC_FREE(ctx);
2448                 return false;
2449         }
2450
2451         TALLOC_FREE(temp);
2452         temp = smbldap_talloc_single_attribute(
2453                         ldap_state->smbldap_state->ldap_struct,
2454                         entry,
2455                         get_attr_key2string(groupmap_attr_list,
2456                                 LDAP_ATTR_GROUP_TYPE),
2457                         ctx);
2458         if (!temp) {
2459                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2460                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2461                 TALLOC_FREE(ctx);
2462                 return false;
2463         }
2464         map->sid_name_use = (enum lsa_SidType)atol(temp);
2465
2466         if ((map->sid_name_use < SID_NAME_USER) ||
2467                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2468                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2469                 TALLOC_FREE(ctx);
2470                 return false;
2471         }
2472
2473         TALLOC_FREE(temp);
2474         temp = smbldap_talloc_single_attribute(
2475                         ldap_state->smbldap_state->ldap_struct,
2476                         entry,
2477                         get_attr_key2string(groupmap_attr_list,
2478                                 LDAP_ATTR_DISPLAY_NAME),
2479                         ctx);
2480         if (!temp) {
2481                 temp = smbldap_talloc_single_attribute(
2482                                 ldap_state->smbldap_state->ldap_struct,
2483                                 entry,
2484                                 get_attr_key2string(groupmap_attr_list,
2485                                         LDAP_ATTR_CN),
2486                                 ctx);
2487                 if (!temp) {
2488                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2489 for gidNumber(%lu)\n",(unsigned long)map->gid));
2490                         TALLOC_FREE(ctx);
2491                         return false;
2492                 }
2493         }
2494         fstrcpy(map->nt_name, temp);
2495
2496         TALLOC_FREE(temp);
2497         temp = smbldap_talloc_single_attribute(
2498                         ldap_state->smbldap_state->ldap_struct,
2499                         entry,
2500                         get_attr_key2string(groupmap_attr_list,
2501                                 LDAP_ATTR_DESC),
2502                         ctx);
2503         if (!temp) {
2504                 temp = talloc_strdup(ctx, "");
2505                 if (!temp) {
2506                         TALLOC_FREE(ctx);
2507                         return false;
2508                 }
2509         }
2510         fstrcpy(map->comment, temp);
2511
2512         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2513                 store_gid_sid_cache(&map->sid, map->gid);
2514         }
2515
2516         TALLOC_FREE(ctx);
2517         return true;
2518 }
2519
2520 /**********************************************************************
2521  *********************************************************************/
2522
2523 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2524                                  const char *filter,
2525                                  GROUP_MAP *map)
2526 {
2527         struct ldapsam_privates *ldap_state =
2528                 (struct ldapsam_privates *)methods->private_data;
2529         LDAPMessage *result = NULL;
2530         LDAPMessage *entry = NULL;
2531         int count;
2532
2533         if (ldapsam_search_one_group(ldap_state, filter, &result)
2534             != LDAP_SUCCESS) {
2535                 return NT_STATUS_NO_SUCH_GROUP;
2536         }
2537
2538         count = ldap_count_entries(priv2ld(ldap_state), result);
2539
2540         if (count < 1) {
2541                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2542                           "%s\n", filter));
2543                 ldap_msgfree(result);
2544                 return NT_STATUS_NO_SUCH_GROUP;
2545         }
2546
2547         if (count > 1) {
2548                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2549                           "count=%d\n", filter, count));
2550                 ldap_msgfree(result);
2551                 return NT_STATUS_NO_SUCH_GROUP;
2552         }
2553
2554         entry = ldap_first_entry(priv2ld(ldap_state), result);
2555
2556         if (!entry) {
2557                 ldap_msgfree(result);
2558                 return NT_STATUS_UNSUCCESSFUL;
2559         }
2560
2561         if (!init_group_from_ldap(ldap_state, map, entry)) {
2562                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2563                           "group filter %s\n", filter));
2564                 ldap_msgfree(result);
2565                 return NT_STATUS_NO_SUCH_GROUP;
2566         }
2567
2568         ldap_msgfree(result);
2569         return NT_STATUS_OK;
2570 }
2571
2572 /**********************************************************************
2573  *********************************************************************/
2574
2575 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2576                                  DOM_SID sid)
2577 {
2578         char *filter = NULL;
2579         NTSTATUS status;
2580
2581         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2582                 LDAP_OBJ_GROUPMAP,
2583                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2584                 sid_string_static(&sid)) < 0) {
2585                 return NT_STATUS_NO_MEMORY;
2586         }
2587
2588         status = ldapsam_getgroup(methods, filter, map);
2589         SAFE_FREE(filter);
2590         return status;
2591 }
2592
2593 /**********************************************************************
2594  *********************************************************************/
2595
2596 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2597                                  gid_t gid)
2598 {
2599         char *filter = NULL;
2600         NTSTATUS status;
2601
2602         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2603                 LDAP_OBJ_GROUPMAP,
2604                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2605                 (unsigned long)gid) < 0) {
2606                 return NT_STATUS_NO_MEMORY;
2607         }
2608
2609         status = ldapsam_getgroup(methods, filter, map);
2610         SAFE_FREE(filter);
2611         return status;
2612 }
2613
2614 /**********************************************************************
2615  *********************************************************************/
2616
2617 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2618                                  const char *name)
2619 {
2620         char *filter = NULL;
2621         char *escape_name = escape_ldap_string_alloc(name);
2622         NTSTATUS status;
2623
2624         if (!escape_name) {
2625                 return NT_STATUS_NO_MEMORY;
2626         }
2627
2628         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2629                 LDAP_OBJ_GROUPMAP,
2630                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2631                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2632                 escape_name) < 0) {
2633                 SAFE_FREE(escape_name);
2634                 return NT_STATUS_NO_MEMORY;
2635         }
2636
2637         SAFE_FREE(escape_name);
2638         status = ldapsam_getgroup(methods, filter, map);
2639         SAFE_FREE(filter);
2640         return status;
2641 }
2642
2643 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2644                                            LDAPMessage *entry,
2645                                            const DOM_SID *domain_sid,
2646                                            uint32 *rid)
2647 {
2648         fstring str;
2649         DOM_SID sid;
2650
2651         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2652                                           str, sizeof(str)-1)) {
2653                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2654                 return False;
2655         }
2656
2657         if (!string_to_sid(&sid, str)) {
2658                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2659                 return False;
2660         }
2661
2662         if (sid_compare_domain(&sid, domain_sid) != 0) {
2663                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2664                            str, sid_string_dbg(domain_sid)));
2665                 return False;
2666         }
2667
2668         if (!sid_peek_rid(&sid, rid)) {
2669                 DEBUG(10, ("Could not peek into RID\n"));
2670                 return False;
2671         }
2672
2673         return True;
2674 }
2675
2676 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2677                                            TALLOC_CTX *mem_ctx,
2678                                            const DOM_SID *group,
2679                                            uint32 **pp_member_rids,
2680                                            size_t *p_num_members)
2681 {
2682         struct ldapsam_privates *ldap_state =
2683                 (struct ldapsam_privates *)methods->private_data;
2684         struct smbldap_state *conn = ldap_state->smbldap_state;
2685         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2686         const char *sid_attrs[] = { "sambaSID", NULL };
2687         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2688         LDAPMessage *result = NULL;
2689         LDAPMessage *entry;
2690         char *filter;
2691         char **values = NULL;
2692         char **memberuid;
2693         char *gidstr;
2694         int rc, count;
2695
2696         *pp_member_rids = NULL;
2697         *p_num_members = 0;
2698
2699         filter = talloc_asprintf(mem_ctx,
2700                                  "(&(objectClass=%s)"
2701                                  "(objectClass=%s)"
2702                                  "(sambaSID=%s))",
2703                                  LDAP_OBJ_POSIXGROUP,
2704                                  LDAP_OBJ_GROUPMAP,
2705                                  sid_string_talloc(mem_ctx, group));
2706         if (filter == NULL) {
2707                 ret = NT_STATUS_NO_MEMORY;
2708                 goto done;
2709         }
2710
2711         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2712                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2713                             &result);
2714
2715         if (rc != LDAP_SUCCESS)
2716                 goto done;
2717
2718         talloc_autofree_ldapmsg(mem_ctx, result);
2719
2720         count = ldap_count_entries(conn->ldap_struct, result);
2721
2722         if (count > 1) {
2723                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2724                           sid_string_dbg(group)));
2725                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2726                 goto done;
2727         }
2728
2729         if (count == 0) {
2730                 ret = NT_STATUS_NO_SUCH_GROUP;
2731                 goto done;
2732         }
2733
2734         entry = ldap_first_entry(conn->ldap_struct, result);
2735         if (entry == NULL)
2736                 goto done;
2737
2738         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2739         if (!gidstr) {
2740                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2741                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2742                 goto done;
2743         }
2744
2745         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2746
2747         if (values) {
2748
2749                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2750                 if (filter == NULL) {
2751                         ret = NT_STATUS_NO_MEMORY;
2752                         goto done;
2753                 }
2754
2755                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2756                         char *escape_memberuid;
2757
2758                         escape_memberuid = escape_ldap_string_alloc(*memberuid);
2759                         if (escape_memberuid == NULL) {
2760                                 ret = NT_STATUS_NO_MEMORY;
2761                                 goto done;
2762                         }
2763
2764                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2765                         if (filter == NULL) {
2766                                 SAFE_FREE(escape_memberuid);
2767                                 ret = NT_STATUS_NO_MEMORY;
2768                                 goto done;
2769                         }
2770
2771                         SAFE_FREE(escape_memberuid);
2772                 }
2773
2774                 filter = talloc_asprintf_append_buffer(filter, "))");
2775                 if (filter == NULL) {
2776                         ret = NT_STATUS_NO_MEMORY;
2777                         goto done;
2778                 }
2779
2780                 rc = smbldap_search(conn, lp_ldap_user_suffix(),
2781                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2782                                     &result);
2783
2784                 if (rc != LDAP_SUCCESS)
2785                         goto done;
2786
2787                 count = ldap_count_entries(conn->ldap_struct, result);
2788                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2789
2790                 talloc_autofree_ldapmsg(mem_ctx, result);
2791
2792                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2793                      entry != NULL;
2794                      entry = ldap_next_entry(conn->ldap_struct, entry))
2795                 {
2796                         char *sidstr;
2797                         DOM_SID sid;
2798                         uint32 rid;
2799
2800                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2801                                                                  entry, "sambaSID",
2802                                                                  mem_ctx);
2803                         if (!sidstr) {
2804                                 DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2805                                           "the sambaSID attribute\n"));
2806                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2807                                 goto done;
2808                         }
2809
2810                         if (!string_to_sid(&sid, sidstr))
2811                                 goto done;
2812
2813                         if (!sid_check_is_in_our_domain(&sid)) {
2814                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2815                                           "in our domain\n"));
2816                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2817                                 goto done;
2818                         }
2819
2820                         sid_peek_rid(&sid, &rid);
2821
2822                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2823                                                 p_num_members)) {
2824                                 ret = NT_STATUS_NO_MEMORY;
2825                                 goto done;
2826                         }
2827                 }
2828         }
2829
2830         filter = talloc_asprintf(mem_ctx,
2831                                  "(&(objectClass=%s)"
2832                                  "(gidNumber=%s))",
2833                                  LDAP_OBJ_SAMBASAMACCOUNT,
2834                                  gidstr);
2835
2836         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2837                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2838                             &result);
2839
2840         if (rc != LDAP_SUCCESS)
2841                 goto done;
2842
2843         talloc_autofree_ldapmsg(mem_ctx, result);
2844
2845         for (entry = ldap_first_entry(conn->ldap_struct, result);
2846              entry != NULL;
2847              entry = ldap_next_entry(conn->ldap_struct, entry))
2848         {
2849                 uint32 rid;
2850
2851                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2852                                                     entry,
2853                                                     get_global_sam_sid(),
2854                                                     &rid)) {
2855                         DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2856                                   "the sambaSID attribute\n"));
2857                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2858                         goto done;
2859                 }
2860
2861                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2862                                         p_num_members)) {
2863                         ret = NT_STATUS_NO_MEMORY;
2864                         goto done;
2865                 }
2866         }
2867
2868         ret = NT_STATUS_OK;
2869
2870  done:
2871
2872         if (values)
2873                 ldap_value_free(values);
2874
2875         return ret;
2876 }
2877
2878 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2879                                                TALLOC_CTX *mem_ctx,
2880                                                struct samu *user,
2881                                                DOM_SID **pp_sids,
2882                                                gid_t **pp_gids,
2883                                                size_t *p_num_groups)
2884 {
2885         struct ldapsam_privates *ldap_state =
2886                 (struct ldapsam_privates *)methods->private_data;
2887         struct smbldap_state *conn = ldap_state->smbldap_state;
2888         char *filter;
2889         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2890         char *escape_name;
2891         int rc, count;
2892         LDAPMessage *result = NULL;
2893         LDAPMessage *entry;
2894         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2895         size_t num_sids, num_gids;
2896         char *gidstr;
2897         gid_t primary_gid = -1;
2898
2899         *pp_sids = NULL;
2900         num_sids = 0;
2901
2902         if (pdb_get_username(user) == NULL) {
2903                 return NT_STATUS_INVALID_PARAMETER;
2904         }
2905
2906         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2907         if (escape_name == NULL)
2908                 return NT_STATUS_NO_MEMORY;
2909
2910         /* retrieve the users primary gid */
2911         filter = talloc_asprintf(mem_ctx,
2912                                  "(&(objectClass=%s)(uid=%s))",
2913                                  LDAP_OBJ_SAMBASAMACCOUNT,
2914                                  escape_name);
2915         if (filter == NULL) {
2916                 ret = NT_STATUS_NO_MEMORY;
2917                 goto done;
2918         }
2919
2920         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2921                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2922
2923         if (rc != LDAP_SUCCESS)
2924                 goto done;
2925
2926         talloc_autofree_ldapmsg(mem_ctx, result);
2927
2928         count = ldap_count_entries(priv2ld(ldap_state), result);
2929
2930         switch (count) {
2931         case 0:
2932                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2933                 ret = NT_STATUS_NO_SUCH_USER;
2934                 goto done;
2935         case 1:
2936                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2937
2938                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2939                 if (!gidstr) {
2940                         DEBUG (1, ("Unable to find the member's gid!\n"));
2941                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2942                         goto done;
2943                 }
2944                 primary_gid = strtoul(gidstr, NULL, 10);
2945                 break;
2946         default:
2947                 DEBUG(1, ("found more than one account with the same user name ?!\n"));
2948                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2949                 goto done;
2950         }
2951
2952         filter = talloc_asprintf(mem_ctx,
2953                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2954                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2955         if (filter == NULL) {
2956                 ret = NT_STATUS_NO_MEMORY;
2957                 goto done;
2958         }
2959
2960         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2961                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2962
2963         if (rc != LDAP_SUCCESS)
2964                 goto done;
2965
2966         talloc_autofree_ldapmsg(mem_ctx, result);
2967
2968         num_gids = 0;
2969         *pp_gids = NULL;
2970
2971         num_sids = 0;
2972         *pp_sids = NULL;
2973
2974         /* We need to add the primary group as the first gid/sid */
2975
2976         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2977                 ret = NT_STATUS_NO_MEMORY;
2978                 goto done;
2979         }
2980
2981         /* This sid will be replaced later */
2982
2983         if (!add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids)) {
2984                 ret = NT_STATUS_NO_MEMORY;
2985                 goto done;
2986         }
2987
2988         for (entry = ldap_first_entry(conn->ldap_struct, result);
2989              entry != NULL;
2990              entry = ldap_next_entry(conn->ldap_struct, entry))
2991         {
2992                 fstring str;
2993                 DOM_SID sid;
2994                 gid_t gid;
2995                 char *end;
2996
2997                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2998                                                   entry, "sambaSID",
2999                                                   str, sizeof(str)-1))
3000                         continue;
3001
3002                 if (!string_to_sid(&sid, str))
3003                         goto done;
3004
3005                 if (!smbldap_get_single_attribute(conn->ldap_struct,
3006                                                   entry, "gidNumber",
3007                                                   str, sizeof(str)-1))
3008                         continue;
3009
3010                 gid = strtoul(str, &end, 10);
3011
3012                 if (PTR_DIFF(end, str) != strlen(str))
3013                         goto done;
3014
3015                 if (gid == primary_gid) {
3016                         sid_copy(&(*pp_sids)[0], &sid);
3017                 } else {
3018                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
3019                                                 &num_gids)) {
3020                                 ret = NT_STATUS_NO_MEMORY;
3021                                 goto done;
3022                         }
3023                         if (!add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
3024                                                 &num_sids)) {
3025                                 ret = NT_STATUS_NO_MEMORY;
3026                                 goto done;
3027                         }
3028                 }
3029         }
3030
3031         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
3032                 DEBUG(3, ("primary group of [%s] not found\n",
3033                           pdb_get_username(user)));
3034                 goto done;
3035         }
3036
3037         *p_num_groups = num_sids;
3038
3039         ret = NT_STATUS_OK;
3040
3041  done:
3042
3043         SAFE_FREE(escape_name);
3044         return ret;
3045 }
3046
3047 /**********************************************************************
3048  * Augment a posixGroup object with a sambaGroupMapping domgroup
3049  *********************************************************************/
3050
3051 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
3052                                        struct ldapsam_privates *ldap_state,
3053                                        GROUP_MAP *map)
3054 {
3055         const char *filter, *dn;
3056         LDAPMessage *msg, *entry;
3057         LDAPMod **mods;
3058         int rc;
3059
3060         filter = talloc_asprintf(mem_ctx,
3061                                  "(&(objectClass=posixGroup)(gidNumber=%u))",
3062                                  map->gid);
3063         if (filter == NULL) {
3064                 return NT_STATUS_NO_MEMORY;
3065         }
3066
3067         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3068                                    get_attr_list(mem_ctx, groupmap_attr_list),
3069                                    &msg);
3070         talloc_autofree_ldapmsg(mem_ctx, msg);
3071
3072         if ((rc != LDAP_SUCCESS) ||
3073             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3074             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3075                 return NT_STATUS_NO_SUCH_GROUP;
3076         }
3077
3078         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3079         if (dn == NULL) {
3080                 return NT_STATUS_NO_MEMORY;
3081         }
3082
3083         mods = NULL;
3084         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3085                         "sambaGroupMapping");
3086         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3087                          sid_string_talloc(mem_ctx, &map->sid));
3088         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3089                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3090         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3091                          map->nt_name);
3092         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3093                          map->comment);
3094         talloc_autofree_ldapmod(mem_ctx, mods);
3095
3096         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3097         if (rc != LDAP_SUCCESS) {
3098                 return NT_STATUS_ACCESS_DENIED;
3099         }
3100
3101         return NT_STATUS_OK;
3102 }
3103
3104 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3105                                                 GROUP_MAP *map)
3106 {
3107         struct ldapsam_privates *ldap_state =
3108                 (struct ldapsam_privates *)methods->private_data;
3109         LDAPMessage *msg = NULL;
3110         LDAPMod **mods = NULL;
3111         const char *attrs[] = { NULL };
3112         char *filter;
3113
3114         char *dn;
3115         TALLOC_CTX *mem_ctx;
3116         NTSTATUS result;
3117
3118         DOM_SID sid;
3119
3120         int rc;
3121
3122         mem_ctx = talloc_new(NULL);
3123         if (mem_ctx == NULL) {
3124                 DEBUG(0, ("talloc_new failed\n"));
3125                 return NT_STATUS_NO_MEMORY;
3126         }
3127
3128         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3129                                  sid_string_talloc(mem_ctx, &map->sid));
3130         if (filter == NULL) {
3131                 result = NT_STATUS_NO_MEMORY;
3132                 goto done;
3133         }
3134
3135         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3136                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3137         talloc_autofree_ldapmsg(mem_ctx, msg);
3138
3139         if ((rc == LDAP_SUCCESS) &&
3140             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3141
3142                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3143                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3144                 result = NT_STATUS_GROUP_EXISTS;
3145                 goto done;
3146         }
3147
3148         switch (map->sid_name_use) {
3149
3150         case SID_NAME_DOM_GRP:
3151                 /* To map a domain group we need to have a posix group
3152                    to attach to. */
3153                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3154                 goto done;
3155                 break;
3156
3157         case SID_NAME_ALIAS:
3158                 if (!sid_check_is_in_our_domain(&map->sid)
3159                         && !sid_check_is_in_builtin(&map->sid) )
3160                 {
3161                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3162                                   sid_string_dbg(&map->sid)));
3163                         result = NT_STATUS_INVALID_PARAMETER;
3164                         goto done;
3165                 }
3166                 break;
3167
3168         default:
3169                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3170                           sid_type_lookup(map->sid_name_use)));
3171                 result = NT_STATUS_INVALID_PARAMETER;
3172                 goto done;
3173         }
3174
3175         /* Domain groups have been mapped in a separate routine, we have to
3176          * create an alias now */
3177
3178         if (map->gid == -1) {
3179                 DEBUG(10, ("Refusing to map gid==-1\n"));
3180                 result = NT_STATUS_INVALID_PARAMETER;
3181                 goto done;
3182         }
3183
3184         if (pdb_gid_to_sid(map->gid, &sid)) {
3185                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
3186                           "add\n", map->gid, sid_string_dbg(&sid)));
3187                 result = NT_STATUS_GROUP_EXISTS;
3188                 goto done;
3189         }
3190
3191         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3192          * the best we can get out of LDAP. */
3193
3194         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3195                              sid_string_talloc(mem_ctx, &map->sid),
3196                              lp_ldap_group_suffix());
3197         if (dn == NULL) {
3198                 result = NT_STATUS_NO_MEMORY;
3199                 goto done;
3200         }
3201
3202         mods = NULL;
3203
3204         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3205                          "sambaSidEntry");
3206         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3207                          "sambaGroupMapping");
3208
3209         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3210                          sid_string_talloc(mem_ctx, &map->sid));
3211         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3212                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3213         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3214                          map->nt_name);
3215         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3216                          map->comment);
3217         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3218                          talloc_asprintf(mem_ctx, "%u", map->gid));
3219         talloc_autofree_ldapmod(mem_ctx, mods);
3220
3221         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3222
3223         result = (rc == LDAP_SUCCESS) ?
3224                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3225
3226  done:
3227         TALLOC_FREE(mem_ctx);
3228         return result;
3229 }
3230
3231 /**********************************************************************
3232  * Update a group mapping entry. We're quite strict about what can be changed:
3233  * Only the description and displayname may be changed. It simply does not
3234  * make any sense to change the SID, gid or the type in a mapping.
3235  *********************************************************************/
3236
3237 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3238                                                    GROUP_MAP *map)
3239 {
3240         struct ldapsam_privates *ldap_state =
3241                 (struct ldapsam_privates *)methods->private_data;
3242         int rc;
3243         const char *filter, *dn;
3244         LDAPMessage *msg = NULL;
3245         LDAPMessage *entry = NULL;
3246         LDAPMod **mods = NULL;
3247         TALLOC_CTX *mem_ctx;
3248         NTSTATUS result;
3249
3250         mem_ctx = talloc_new(NULL);
3251         if (mem_ctx == NULL) {
3252                 DEBUG(0, ("talloc_new failed\n"));
3253                 return NT_STATUS_NO_MEMORY;
3254         }
3255
3256         /* Make 100% sure that sid, gid and type are not changed by looking up
3257          * exactly the values we're given in LDAP. */
3258
3259         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3260                                  "(sambaSid=%s)(gidNumber=%u)"
3261                                  "(sambaGroupType=%d))",
3262                                  LDAP_OBJ_GROUPMAP,
3263                                  sid_string_talloc(mem_ctx, &map->sid),
3264                                  map->gid, map->sid_name_use);
3265         if (filter == NULL) {
3266                 result = NT_STATUS_NO_MEMORY;
3267                 goto done;
3268         }
3269
3270         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3271                                    get_attr_list(mem_ctx, groupmap_attr_list),
3272                                    &msg);
3273         talloc_autofree_ldapmsg(mem_ctx, msg);
3274
3275         if ((rc != LDAP_SUCCESS) ||
3276             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3277             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3278                 result = NT_STATUS_NO_SUCH_GROUP;
3279                 goto done;
3280         }
3281
3282         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3283
3284         if (dn == NULL) {
3285                 result = NT_STATUS_NO_MEMORY;
3286                 goto done;
3287         }
3288
3289         mods = NULL;
3290         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3291                          map->nt_name);
3292         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3293                          map->comment);
3294         talloc_autofree_ldapmod(mem_ctx, mods);
3295
3296         if (mods == NULL) {
3297                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3298                           "nothing to do\n"));
3299                 result = NT_STATUS_OK;
3300                 goto done;
3301         }
3302
3303         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3304
3305         if (rc != LDAP_SUCCESS) {
3306                 result = NT_STATUS_ACCESS_DENIED;
3307                 goto done;
3308         }
3309
3310         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3311                   "group %lu in LDAP\n", (unsigned long)map->gid));
3312
3313         result = NT_STATUS_OK;
3314
3315  done:
3316         TALLOC_FREE(mem_ctx);
3317         return result;
3318 }
3319
3320 /**********************************************************************
3321  *********************************************************************/
3322
3323 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3324                                                    DOM_SID sid)
3325 {
3326         struct ldapsam_privates *priv =
3327                 (struct ldapsam_privates *)methods->private_data;
3328         LDAPMessage *msg, *entry;
3329         int rc;
3330         NTSTATUS result;
3331         TALLOC_CTX *mem_ctx;
3332         char *filter;
3333
3334         mem_ctx = talloc_new(NULL);
3335         if (mem_ctx == NULL) {
3336                 DEBUG(0, ("talloc_new failed\n"));
3337                 return NT_STATUS_NO_MEMORY;
3338         }
3339
3340         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3341                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3342                                  sid_string_talloc(mem_ctx, &sid));
3343         if (filter == NULL) {
3344                 result = NT_STATUS_NO_MEMORY;
3345                 goto done;
3346         }
3347         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3348                                    get_attr_list(mem_ctx, groupmap_attr_list),
3349                                    &msg);
3350         talloc_autofree_ldapmsg(mem_ctx, msg);
3351
3352         if ((rc != LDAP_SUCCESS) ||
3353             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3354             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3355                 result = NT_STATUS_NO_SUCH_GROUP;
3356                 goto done;
3357         }
3358
3359         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3360                                   get_attr_list(mem_ctx,
3361                                                 groupmap_attr_list_to_delete));
3362
3363         if ((rc == LDAP_NAMING_VIOLATION) ||
3364             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3365                 const char *attrs[] = { "sambaGroupType", "description",
3366                                         "displayName", "sambaSIDList",
3367                                         NULL };
3368
3369                 /* Second try. Don't delete the sambaSID attribute, this is
3370                    for "old" entries that are tacked on a winbind
3371                    sambaIdmapEntry. */
3372
3373                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3374                                           LDAP_OBJ_GROUPMAP, attrs);
3375         }
3376
3377         if ((rc == LDAP_NAMING_VIOLATION) ||
3378             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3379                 const char *attrs[] = { "sambaGroupType", "description",
3380                                         "displayName", "sambaSIDList",
3381                                         "gidNumber", NULL };
3382
3383                 /* Third try. This is a post-3.0.21 alias (containing only
3384                  * sambaSidEntry and sambaGroupMapping classes), we also have
3385                  * to delete the gidNumber attribute, only the sambaSidEntry
3386                  * remains */
3387
3388                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3389                                           LDAP_OBJ_GROUPMAP, attrs);
3390         }
3391
3392         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3393
3394  done:
3395         TALLOC_FREE(mem_ctx);
3396         return result;
3397  }
3398
3399 /**********************************************************************
3400  *********************************************************************/
3401
3402 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3403                                     bool update)
3404 {
3405         struct ldapsam_privates *ldap_state =
3406                 (struct ldapsam_privates *)my_methods->private_data;
3407         char *filter = NULL;
3408         int rc;
3409         const char **attr_list;
3410
3411         filter = talloc_asprintf(NULL, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3412         if (!filter) {
3413                 return NT_STATUS_NO_MEMORY;
3414         }
3415         attr_list = get_attr_list( NULL, groupmap_attr_list );
3416         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3417                             LDAP_SCOPE_SUBTREE, filter,
3418                             attr_list, 0, &ldap_state->result);
3419         TALLOC_FREE(attr_list);
3420
3421         if (rc != LDAP_SUCCESS) {
3422                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3423                           ldap_err2string(rc)));
3424                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3425                           lp_ldap_group_suffix(), filter));
3426                 ldap_msgfree(ldap_state->result);
3427                 ldap_state->result = NULL;
3428                 TALLOC_FREE(filter);
3429                 return NT_STATUS_UNSUCCESSFUL;
3430         }
3431
3432         TALLOC_FREE(filter);
3433
3434         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3435                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3436                                      ldap_state->result)));
3437
3438         ldap_state->entry =
3439                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3440                                  ldap_state->result);
3441         ldap_state->index = 0;
3442
3443         return NT_STATUS_OK;
3444 }
3445
3446 /**********************************************************************
3447  *********************************************************************/
3448
3449 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3450 {
3451         ldapsam_endsampwent(my_methods);
3452 }
3453
3454 /**********************************************************************
3455  *********************************************************************/
3456
3457 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3458                                     GROUP_MAP *map)
3459 {
3460         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3461         struct ldapsam_privates *ldap_state =
3462                 (struct ldapsam_privates *)my_methods->private_data;
3463         bool bret = False;
3464
3465         while (!bret) {
3466                 if (!ldap_state->entry)
3467                         return ret;
3468
3469                 ldap_state->index++;
3470                 bret = init_group_from_ldap(ldap_state, map,
3471                                             ldap_state->entry);
3472
3473                 ldap_state->entry =
3474                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3475                                         ldap_state->entry);
3476         }
3477
3478         return NT_STATUS_OK;
3479 }
3480
3481 /**********************************************************************
3482  *********************************************************************/
3483
3484 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3485                                            const DOM_SID *domsid, enum lsa_SidType sid_name_use,
3486                                            GROUP_MAP **pp_rmap,
3487                                            size_t *p_num_entries,
3488                                            bool unix_only)
3489 {
3490         GROUP_MAP map;
3491         size_t entries = 0;
3492
3493         *p_num_entries = 0;
3494         *pp_rmap = NULL;
3495
3496         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3497                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3498                           "passdb\n"));
3499                 return NT_STATUS_ACCESS_DENIED;
3500         }
3501
3502         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3503                 if (sid_name_use != SID_NAME_UNKNOWN &&
3504                     sid_name_use != map.sid_name_use) {
3505                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3506                                   "not of the requested type\n", map.nt_name));
3507                         continue;
3508                 }
3509                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3510                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3511                                   "non mapped\n", map.nt_name));
3512                         continue;
3513                 }
3514
3515                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3516                 if (!(*pp_rmap)) {
3517                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3518                                  "enlarge group map!\n"));
3519                         return NT_STATUS_UNSUCCESSFUL;
3520                 }
3521
3522                 (*pp_rmap)[entries] = map;
3523
3524                 entries += 1;
3525
3526         }
3527         ldapsam_endsamgrent(methods);
3528
3529         *p_num_entries = entries;
3530
3531         return NT_STATUS_OK;
3532 }
3533
3534 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3535                                         const DOM_SID *alias,
3536                                         const DOM_SID *member,
3537                                         int modop)
3538 {
3539         struct ldapsam_privates *ldap_state =
3540                 (struct ldapsam_privates *)methods->private_data;
3541         char *dn = NULL;
3542         LDAPMessage *result = NULL;
3543         LDAPMessage *entry = NULL;
3544         int count;
3545         LDAPMod **mods = NULL;
3546         int rc;
3547         enum lsa_SidType type = SID_NAME_USE_NONE;
3548
3549         char *filter = NULL;
3550
3551         if (sid_check_is_in_builtin(alias)) {
3552                 type = SID_NAME_ALIAS;
3553         }
3554
3555         if (sid_check_is_in_our_domain(alias)) {
3556                 type = SID_NAME_ALIAS;
3557         }
3558
3559         if (type == SID_NAME_USE_NONE) {
3560                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3561                           sid_string_dbg(alias)));
3562                 return NT_STATUS_NO_SUCH_ALIAS;
3563         }
3564
3565         if (asprintf(&filter,
3566                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3567                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3568                      type) < 0) {
3569                 return NT_STATUS_NO_MEMORY;
3570         }
3571
3572         if (ldapsam_search_one_group(ldap_state, filter,
3573                                      &result) != LDAP_SUCCESS) {
3574                 SAFE_FREE(filter);
3575                 return NT_STATUS_NO_SUCH_ALIAS;
3576         }
3577
3578         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3579                                    result);
3580
3581         if (count < 1) {
3582                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3583                 ldap_msgfree(result);
3584                 SAFE_FREE(filter);
3585                 return NT_STATUS_NO_SUCH_ALIAS;
3586         }
3587
3588         if (count > 1) {
3589                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3590                           "filter %s: count=%d\n", filter, count));
3591                 ldap_msgfree(result);
3592                 SAFE_FREE(filter);
3593                 return NT_STATUS_NO_SUCH_ALIAS;
3594         }
3595
3596         SAFE_FREE(filter);
3597
3598         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3599                                  result);
3600
3601         if (!entry) {
3602                 ldap_msgfree(result);
3603                 return NT_STATUS_UNSUCCESSFUL;
3604         }
3605
3606         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
3607         if (!dn) {
3608                 ldap_msgfree(result);
3609                 return NT_STATUS_UNSUCCESSFUL;
3610         }
3611
3612         smbldap_set_mod(&mods, modop,
3613                         get_attr_key2string(groupmap_attr_list,
3614                                             LDAP_ATTR_SID_LIST),
3615                         sid_string_static(member));
3616
3617         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3618
3619         ldap_mods_free(mods, True);
3620         ldap_msgfree(result);
3621         SAFE_FREE(dn);
3622
3623         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3624                 return NT_STATUS_MEMBER_IN_ALIAS;
3625         }
3626
3627         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3628                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3629         }
3630
3631         if (rc != LDAP_SUCCESS) {
3632                 return NT_STATUS_UNSUCCESSFUL;
3633         }
3634
3635         return NT_STATUS_OK;
3636 }
3637
3638 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3639                                      const DOM_SID *alias,
3640                                      const DOM_SID *member)
3641 {
3642         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3643 }
3644
3645 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3646                                      const DOM_SID *alias,
3647                                      const DOM_SID *member)
3648 {
3649         return ldapsam_modify_aliasmem(methods, alias, member,
3650                                        LDAP_MOD_DELETE);
3651 }
3652
3653 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3654                                       const DOM_SID *alias,
3655                                       DOM_SID **pp_members,
3656                                       size_t *p_num_members)
3657 {
3658         struct ldapsam_privates *ldap_state =
3659                 (struct ldapsam_privates *)methods->private_data;
3660         LDAPMessage *result = NULL;
3661         LDAPMessage *entry = NULL;
3662         int count;
3663         char **values = NULL;
3664         int i;
3665         char *filter = NULL;
3666         size_t num_members = 0;
3667         enum lsa_SidType type = SID_NAME_USE_NONE;
3668
3669         *pp_members = NULL;
3670         *p_num_members = 0;
3671
3672         if (sid_check_is_in_builtin(alias)) {
3673                 type = SID_NAME_ALIAS;
3674         }
3675
3676         if (sid_check_is_in_our_domain(alias)) {
3677                 type = SID_NAME_ALIAS;
3678         }
3679
3680         if (type == SID_NAME_USE_NONE) {
3681                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3682                           sid_string_dbg(alias)));
3683                 return NT_STATUS_NO_SUCH_ALIAS;
3684         }
3685
3686         if (asprintf(&filter,
3687                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3688                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3689                      type) < 0) {
3690                 return NT_STATUS_NO_MEMORY;
3691         }
3692
3693         if (ldapsam_search_one_group(ldap_state, filter,
3694                                      &result) != LDAP_SUCCESS) {
3695                 SAFE_FREE(filter);
3696                 return NT_STATUS_NO_SUCH_ALIAS;
3697         }
3698
3699         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3700                                    result);
3701
3702         if (count < 1) {
3703                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3704                 ldap_msgfree(result);
3705                 SAFE_FREE(filter);
3706                 return NT_STATUS_NO_SUCH_ALIAS;
3707         }
3708
3709         if (count > 1) {
3710                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3711                           "filter %s: count=%d\n", filter, count));
3712                 ldap_msgfree(result);
3713                 SAFE_FREE(filter);
3714                 return NT_STATUS_NO_SUCH_ALIAS;
3715         }
3716
3717         SAFE_FREE(filter);
3718
3719         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3720                                  result);
3721
3722         if (!entry) {
3723                 ldap_msgfree(result);
3724                 return NT_STATUS_UNSUCCESSFUL;
3725         }
3726
3727         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3728                                  entry,
3729                                  get_attr_key2string(groupmap_attr_list,
3730                                                      LDAP_ATTR_SID_LIST));
3731
3732         if (values == NULL) {
3733                 ldap_msgfree(result);
3734                 return NT_STATUS_OK;
3735         }
3736
3737         count = ldap_count_values(values);
3738
3739         for (i=0; i<count; i++) {
3740                 DOM_SID member;
3741
3742                 if (!string_to_sid(&member, values[i]))
3743                         continue;
3744
3745                 if (!add_sid_to_array(NULL, &member, pp_members, &num_members)) {
3746                         ldap_value_free(values);
3747                         ldap_msgfree(result);
3748                         return NT_STATUS_NO_MEMORY;
3749                 }
3750         }
3751
3752         *p_num_members = num_members;
3753         ldap_value_free(values);
3754         ldap_msgfree(result);
3755
3756         return NT_STATUS_OK;
3757 }
3758
3759 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3760                                           TALLOC_CTX *mem_ctx,
3761                                           const DOM_SID *domain_sid,
3762                                           const DOM_SID *members,
3763                                           size_t num_members,
3764                                           uint32 **pp_alias_rids,
3765                                           size_t *p_num_alias_rids)
3766 {
3767         struct ldapsam_privates *ldap_state =
3768                 (struct ldapsam_privates *)methods->private_data;
3769         LDAP *ldap_struct;
3770
3771         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3772
3773         LDAPMessage *result = NULL;
3774         LDAPMessage *entry = NULL;
3775         int i;
3776         int rc;
3777         char *filter;
3778         enum lsa_SidType type = SID_NAME_USE_NONE;
3779
3780         if (sid_check_is_builtin(domain_sid)) {
3781                 type = SID_NAME_ALIAS;
3782         }
3783
3784         if (sid_check_is_domain(domain_sid)) {
3785                 type = SID_NAME_ALIAS;
3786         }
3787
3788         if (type == SID_NAME_USE_NONE) {
3789                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3790                           sid_string_dbg(domain_sid)));
3791                 return NT_STATUS_UNSUCCESSFUL;
3792         }
3793
3794         filter = talloc_asprintf(mem_ctx,
3795                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3796                                  LDAP_OBJ_GROUPMAP, type);
3797
3798         for (i=0; i<num_members; i++)
3799                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3800                                          filter,
3801                                          sid_string_talloc(mem_ctx,
3802                                                            &members[i]));
3803
3804         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3805
3806         if (filter == NULL) {
3807                 return NT_STATUS_NO_MEMORY;
3808         }
3809
3810         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3811                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3812
3813         if (rc != LDAP_SUCCESS)
3814                 return NT_STATUS_UNSUCCESSFUL;
3815
3816         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3817
3818         for (entry = ldap_first_entry(ldap_struct, result);
3819              entry != NULL;
3820              entry = ldap_next_entry(ldap_struct, entry))
3821         {
3822                 fstring sid_str;
3823                 DOM_SID sid;
3824                 uint32 rid;
3825
3826                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3827                                                   LDAP_ATTRIBUTE_SID,
3828                                                   sid_str,
3829                                                   sizeof(sid_str)-1))
3830                         continue;
3831
3832                 if (!string_to_sid(&sid, sid_str))
3833                         continue;
3834
3835                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3836                         continue;
3837
3838                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3839                                         p_num_alias_rids)) {
3840                         ldap_msgfree(result);
3841                         return NT_STATUS_NO_MEMORY;
3842                 }
3843         }
3844
3845         ldap_msgfree(result);
3846         return NT_STATUS_OK;
3847 }
3848
3849 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3850                                                    int policy_index,
3851                                                    uint32 value)
3852 {
3853         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3854         int rc;
3855         LDAPMod **mods = NULL;
3856         fstring value_string;
3857         const char *policy_attr = NULL;
3858
3859         struct ldapsam_privates *ldap_state =
3860                 (struct ldapsam_privates *)methods->private_data;
3861
3862         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3863
3864         if (!ldap_state->domain_dn) {
3865                 return NT_STATUS_INVALID_PARAMETER;
3866         }
3867
3868         policy_attr = get_account_policy_attr(policy_index);
3869         if (policy_attr == NULL) {
3870                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3871                          "policy\n"));
3872                 return ntstatus;
3873         }
3874
3875         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3876
3877         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3878
3879         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3880                             mods);
3881
3882         ldap_mods_free(mods, True);
3883
3884         if (rc != LDAP_SUCCESS) {
3885                 return ntstatus;
3886         }
3887
3888         if (!cache_account_policy_set(policy_index, value)) {
3889                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3890                          "update local tdb cache\n"));
3891                 return ntstatus;
3892         }
3893
3894         return NT_STATUS_OK;
3895 }
3896
3897 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3898                                            int policy_index, uint32 value)
3899 {
3900         return ldapsam_set_account_policy_in_ldap(methods, policy_index,
3901                                                   value);
3902 }
3903
3904 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3905                                                      int policy_index,
3906                                                      uint32 *value)
3907 {
3908         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3909         LDAPMessage *result = NULL;
3910         LDAPMessage *entry = NULL;
3911         int count;
3912         int rc;
3913         char **vals = NULL;
3914         const char *policy_attr = NULL;
3915
3916         struct ldapsam_privates *ldap_state =
3917                 (struct ldapsam_privates *)methods->private_data;
3918
3919         const char *attrs[2];
3920
3921         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3922
3923         if (!ldap_state->domain_dn) {
3924                 return NT_STATUS_INVALID_PARAMETER;
3925         }
3926
3927         policy_attr = get_account_policy_attr(policy_index);
3928         if (!policy_attr) {
3929                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3930                          "policy index: %d\n", policy_index));
3931                 return ntstatus;
3932         }
3933
3934         attrs[0] = policy_attr;
3935         attrs[1] = NULL;
3936
3937         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3938                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3939                             &result);
3940
3941         if (rc != LDAP_SUCCESS) {
3942                 return ntstatus;
3943         }
3944
3945         count = ldap_count_entries(priv2ld(ldap_state), result);
3946         if (count < 1) {
3947                 goto out;
3948         }
3949
3950         entry = ldap_first_entry(priv2ld(ldap_state), result);
3951         if (entry == NULL) {
3952                 goto out;
3953         }
3954
3955         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3956         if (vals == NULL) {
3957                 goto out;
3958         }
3959
3960         *value = (uint32)atol(vals[0]);
3961
3962         ntstatus = NT_STATUS_OK;
3963
3964 out:
3965         if (vals)
3966                 ldap_value_free(vals);
3967         ldap_msgfree(result);
3968
3969         return ntstatus;
3970 }
3971
3972 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3973
3974    - if user hasn't decided to use account policies inside LDAP just reuse the
3975      old tdb values
3976
3977    - if there is a valid cache entry, return that
3978    - if there is an LDAP entry, update cache and return
3979    - otherwise set to default, update cache and return
3980
3981    Guenther
3982 */
3983 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3984                                            int policy_index, uint32 *value)
3985 {
3986         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3987
3988         if (cache_account_policy_get(policy_index, value)) {
3989                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3990                           "cache\n"));
3991                 return NT_STATUS_OK;
3992         }
3993
3994         ntstatus = ldapsam_get_account_policy_from_ldap(methods, policy_index,
3995                                                         value);
3996         if (NT_STATUS_IS_OK(ntstatus)) {
3997                 goto update_cache;
3998         }
3999
4000         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
4001                   "ldap\n"));
4002
4003 #if 0
4004         /* should we automagically migrate old tdb value here ? */
4005         if (account_policy_get(policy_index, value))
4006                 goto update_ldap;
4007
4008         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
4009                   "default\n", policy_index));
4010 #endif
4011
4012         if (!account_policy_get_default(policy_index, value)) {
4013                 return ntstatus;
4014         }
4015
4016 /* update_ldap: */
4017
4018         ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
4019         if (!NT_STATUS_IS_OK(ntstatus)) {
4020                 return ntstatus;
4021         }
4022
4023  update_cache:
4024
4025         if (!cache_account_policy_set(policy_index, *value)) {
4026                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
4027                          "tdb as a cache\n"));
4028                 return NT_STATUS_UNSUCCESSFUL;
4029         }
4030
4031         return NT_STATUS_OK;
4032 }
4033
4034 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
4035                                     const DOM_SID *domain_sid,
4036                                     int num_rids,
4037                                     uint32 *rids,
4038                                     const char **names,
4039                                     enum lsa_SidType *attrs)
4040 {
4041         struct ldapsam_privates *ldap_state =
4042                 (struct ldapsam_privates *)methods->private_data;
4043         LDAPMessage *msg = NULL;
4044         LDAPMessage *entry;
4045         char *allsids = NULL;
4046         int i, rc, num_mapped;
4047         NTSTATUS result = NT_STATUS_NO_MEMORY;
4048         TALLOC_CTX *mem_ctx;
4049         LDAP *ld;
4050         bool is_builtin;
4051
4052         mem_ctx = talloc_new(NULL);
4053         if (mem_ctx == NULL) {
4054                 DEBUG(0, ("talloc_new failed\n"));
4055                 goto done;
4056         }
4057
4058         if (!sid_check_is_builtin(domain_sid) &&
4059             !sid_check_is_domain(domain_sid)) {
4060                 result = NT_STATUS_INVALID_PARAMETER;
4061                 goto done;
4062         }
4063
4064         for (i=0; i<num_rids; i++)
4065                 attrs[i] = SID_NAME_UNKNOWN;
4066
4067         allsids = talloc_strdup(mem_ctx, "");
4068         if (allsids == NULL) {
4069                 goto done;
4070         }
4071
4072         for (i=0; i<num_rids; i++) {
4073                 DOM_SID sid;
4074                 sid_compose(&sid, domain_sid, rids[i]);
4075                 allsids = talloc_asprintf_append_buffer(
4076                         allsids, "(sambaSid=%s)",
4077                         sid_string_talloc(mem_ctx, &sid));
4078                 if (allsids == NULL) {
4079                         goto done;
4080                 }
4081         }
4082
4083         /* First look for users */
4084
4085         {
4086                 char *filter;
4087                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
4088
4089                 filter = talloc_asprintf(
4090                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
4091                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
4092
4093                 if (filter == NULL) {
4094                         goto done;
4095                 }
4096
4097                 rc = smbldap_search(ldap_state->smbldap_state,
4098                                     lp_ldap_user_suffix(),
4099                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4100                                     &msg);
4101                 talloc_autofree_ldapmsg(mem_ctx, msg);
4102         }
4103
4104         if (rc != LDAP_SUCCESS)
4105                 goto done;
4106
4107         ld = ldap_state->smbldap_state->ldap_struct;
4108         num_mapped = 0;
4109
4110         for (entry = ldap_first_entry(ld, msg);
4111              entry != NULL;
4112              entry = ldap_next_entry(ld, entry)) {
4113                 uint32 rid;
4114                 int rid_index;
4115                 const char *name;
4116
4117                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4118                                                     &rid)) {
4119                         DEBUG(2, ("Could not find sid from ldap entry\n"));
4120                         continue;
4121                 }
4122
4123                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
4124                                                        names);
4125                 if (name == NULL) {
4126                         DEBUG(2, ("Could not retrieve uid attribute\n"));
4127                         continue;
4128                 }
4129
4130                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4131                         if (rid == rids[rid_index])
4132                                 break;
4133                 }
4134
4135                 if (rid_index == num_rids) {
4136                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4137                         continue;
4138                 }
4139
4140                 attrs[rid_index] = SID_NAME_USER;
4141                 names[rid_index] = name;
4142                 num_mapped += 1;
4143         }
4144
4145         if (num_mapped == num_rids) {
4146                 /* No need to look for groups anymore -- we're done */
4147                 result = NT_STATUS_OK;
4148                 goto done;
4149         }
4150
4151         /* Same game for groups */
4152
4153         {
4154                 char *filter;
4155                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
4156                                              "sambaGroupType", NULL };
4157
4158                 filter = talloc_asprintf(
4159                         mem_ctx, "(&(objectClass=%s)(|%s))",
4160                         LDAP_OBJ_GROUPMAP, allsids);
4161                 if (filter == NULL) {
4162                         goto done;
4163                 }
4164
4165                 rc = smbldap_search(ldap_state->smbldap_state,
4166                                     lp_ldap_group_suffix(),
4167                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4168                                     &msg);
4169                 talloc_autofree_ldapmsg(mem_ctx, msg);
4170         }
4171
4172         if (rc != LDAP_SUCCESS)
4173                 goto done;
4174
4175         /* ldap_struct might have changed due to a reconnect */
4176
4177         ld = ldap_state->smbldap_state->ldap_struct;
4178
4179         /* For consistency checks, we already checked we're only domain or builtin */
4180
4181         is_builtin = sid_check_is_builtin(domain_sid);
4182
4183         for (entry = ldap_first_entry(ld, msg);
4184              entry != NULL;
4185              entry = ldap_next_entry(ld, entry))
4186         {
4187                 uint32 rid;
4188                 int rid_index;
4189                 const char *attr;
4190                 enum lsa_SidType type;
4191                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
4192
4193                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
4194                                                        mem_ctx);
4195                 if (attr == NULL) {
4196                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
4197                                   dn));
4198                         continue;
4199                 }
4200
4201                 type = (enum lsa_SidType)atol(attr);
4202
4203                 /* Consistency checks */
4204                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
4205                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
4206                                      (type != SID_NAME_DOM_GRP)))) {
4207                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
4208                 }
4209
4210                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4211                                                     &rid)) {
4212                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
4213                         continue;
4214                 }
4215
4216                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
4217
4218                 if (attr == NULL) {
4219                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
4220                                    dn));
4221                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
4222                 }
4223
4224                 if (attr == NULL) {
4225                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
4226                                   dn));
4227                         continue;
4228                 }
4229
4230                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4231                         if (rid == rids[rid_index])
4232                                 break;
4233                 }
4234
4235                 if (rid_index == num_rids) {
4236                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4237                         continue;
4238                 }
4239
4240                 attrs[rid_index] = type;
4241                 names[rid_index] = attr;
4242                 num_mapped += 1;
4243         }
4244
4245         result = NT_STATUS_NONE_MAPPED;
4246
4247         if (num_mapped > 0)
4248                 result = (num_mapped == num_rids) ?
4249                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
4250  done:
4251         TALLOC_FREE(mem_ctx);
4252         return result;
4253 }
4254
4255 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
4256 {
4257         char *filter = NULL;
4258         char *escaped = NULL;
4259         char *result = NULL;
4260
4261         asprintf(&filter, "(&%s(objectclass=sambaSamAccount))",
4262                  "(uid=%u)");
4263         if (filter == NULL) goto done;
4264
4265         escaped = escape_ldap_string_alloc(username);
4266         if (escaped == NULL) goto done;
4267
4268         result = talloc_string_sub(mem_ctx, filter, "%u", username);
4269
4270  done:
4271         SAFE_FREE(filter);
4272         SAFE_FREE(escaped);
4273
4274         return result;
4275 }
4276
4277 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
4278 {
4279         int i, num = 0;
4280         va_list ap;
4281         const char **result;
4282
4283         va_start(ap, mem_ctx);
4284         while (va_arg(ap, const char *) != NULL)
4285                 num += 1;
4286         va_end(ap);
4287
4288         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
4289                 return NULL;
4290         }
4291
4292         va_start(ap, mem_ctx);
4293         for (i=0; i<num; i++) {
4294                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
4295                 if (result[i] == NULL) {
4296                         talloc_free(result);
4297                         return NULL;
4298                 }
4299         }
4300         va_end(ap);
4301
4302         result[num] = NULL;
4303         return result;
4304 }
4305
4306 struct ldap_search_state {
4307         struct smbldap_state *connection;
4308
4309         uint32 acct_flags;
4310         uint16 group_type;
4311
4312         const char *base;
4313         int scope;
4314         const char *filter;
4315         const char **attrs;
4316         int attrsonly;
4317         void *pagedresults_cookie;
4318
4319         LDAPMessage *entries, *current_entry;
4320         bool (*ldap2displayentry)(struct ldap_search_state *state,
4321                                   TALLOC_CTX *mem_ctx,
4322                                   LDAP *ld, LDAPMessage *entry,
4323                                   struct samr_displayentry *result);
4324 };
4325
4326 static bool ldapsam_search_firstpage(struct pdb_search *search)
4327 {
4328         struct ldap_search_state *state =
4329                 (struct ldap_search_state *)search->private_data;
4330         LDAP *ld;
4331         int rc = LDAP_OPERATIONS_ERROR;
4332
4333         state->entries = NULL;
4334
4335         if (state->connection->paged_results) {
4336                 rc = smbldap_search_paged(state->connection, state->base,
4337                                           state->scope, state->filter,
4338                                           state->attrs, state->attrsonly,
4339                                           lp_ldap_page_size(), &state->entries,
4340                                           &state->pagedresults_cookie);
4341         }
4342
4343         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
4344
4345                 if (state->entries != NULL) {
4346                         /* Left over from unsuccessful paged attempt */
4347                         ldap_msgfree(state->entries);
4348                         state->entries = NULL;
4349                 }
4350
4351                 rc = smbldap_search(state->connection, state->base,
4352                                     state->scope, state->filter, state->attrs,
4353                                     state->attrsonly, &state->entries);
4354
4355                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4356                         return False;
4357
4358                 /* Ok, the server was lying. It told us it could do paged
4359                  * searches when it could not. */
4360                 state->connection->paged_results = False;
4361         }
4362
4363         ld = state->connection->ldap_struct;
4364         if ( ld == NULL) {
4365                 DEBUG(5, ("Don't have an LDAP connection right after a "
4366                           "search\n"));
4367                 return False;
4368         }
4369         state->current_entry = ldap_first_entry(ld, state->entries);
4370
4371         if (state->current_entry == NULL) {
4372                 ldap_msgfree(state->entries);
4373                 state->entries = NULL;
4374         }
4375
4376         return True;
4377 }
4378
4379 static bool ldapsam_search_nextpage(struct pdb_search *search)
4380 {
4381         struct ldap_search_state *state =
4382                 (struct ldap_search_state *)search->private_data;
4383         int rc;
4384
4385         if (!state->connection->paged_results) {
4386                 /* There is no next page when there are no paged results */
4387                 return False;
4388         }
4389
4390         rc = smbldap_search_paged(state->connection, state->base,
4391                                   state->scope, state->filter, state->attrs,
4392                                   state->attrsonly, lp_ldap_page_size(),
4393                                   &state->entries,
4394                                   &state->pagedresults_cookie);
4395
4396         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4397                 return False;
4398
4399         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4400
4401         if (state->current_entry == NULL) {
4402                 ldap_msgfree(state->entries);
4403                 state->entries = NULL;
4404         }
4405
4406         return True;
4407 }
4408
4409 static bool ldapsam_search_next_entry(struct pdb_search *search,
4410                                       struct samr_displayentry *entry)
4411 {
4412         struct ldap_search_state *state =
4413                 (struct ldap_search_state *)search->private_data;
4414         bool result;
4415
4416  retry:
4417         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4418                 return False;
4419
4420         if ((state->entries == NULL) &&
4421             !ldapsam_search_nextpage(search))
4422                     return False;
4423
4424         result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
4425                                           state->current_entry, entry);
4426
4427         if (!result) {
4428                 char *dn;
4429                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4430                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4431                 if (dn != NULL) ldap_memfree(dn);
4432         }
4433
4434         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4435
4436         if (state->current_entry == NULL) {
4437                 ldap_msgfree(state->entries);
4438                 state->entries = NULL;
4439         }
4440
4441         if (!result) goto retry;
4442
4443         return True;
4444 }
4445
4446 static void ldapsam_search_end(struct pdb_search *search)
4447 {
4448         struct ldap_search_state *state =
4449                 (struct ldap_search_state *)search->private_data;
4450         int rc;
4451
4452         if (state->pagedresults_cookie == NULL)
4453                 return;
4454
4455         if (state->entries != NULL)
4456                 ldap_msgfree(state->entries);
4457
4458         state->entries = NULL;
4459         state->current_entry = NULL;
4460
4461         if (!state->connection->paged_results)
4462                 return;
4463
4464         /* Tell the LDAP server we're not interested in the rest anymore. */
4465
4466         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4467                                   state->filter, state->attrs,
4468                                   state->attrsonly, 0, &state->entries,
4469                                   &state->pagedresults_cookie);
4470
4471         if (rc != LDAP_SUCCESS)
4472                 DEBUG(5, ("Could not end search properly\n"));
4473
4474         return;
4475 }
4476
4477 static bool ldapuser2displayentry(struct ldap_search_state *state,
4478                                   TALLOC_CTX *mem_ctx,
4479                                   LDAP *ld, LDAPMessage *entry,
4480                                   struct samr_displayentry *result)
4481 {
4482         char **vals;
4483         DOM_SID sid;
4484         uint32 acct_flags;
4485
4486         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4487         if ((vals == NULL) || (vals[0] == NULL)) {
4488                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4489                 return False;
4490         }
4491         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4492         ldap_value_free(vals);
4493
4494         if ((state->acct_flags != 0) &&
4495             ((state->acct_flags & acct_flags) == 0))
4496                 return False;
4497
4498         result->acct_flags = acct_flags;
4499         result->account_name = "";
4500         result->fullname = "";
4501         result->description = "";
4502
4503         vals = ldap_get_values(ld, entry, "uid");
4504         if ((vals == NULL) || (vals[0] == NULL)) {
4505                 DEBUG(5, ("\"uid\" not found\n"));
4506                 return False;
4507         }
4508         pull_utf8_talloc(mem_ctx,
4509                          CONST_DISCARD(char **, &result->account_name),
4510                          vals[0]);
4511         ldap_value_free(vals);
4512
4513         vals = ldap_get_values(ld, entry, "displayName");
4514         if ((vals == NULL) || (vals[0] == NULL))
4515                 DEBUG(8, ("\"displayName\" not found\n"));
4516         else
4517                 pull_utf8_talloc(mem_ctx,
4518                                  CONST_DISCARD(char **, &result->fullname),
4519                                  vals[0]);
4520         ldap_value_free(vals);
4521
4522         vals = ldap_get_values(ld, entry, "description");
4523         if ((vals == NULL) || (vals[0] == NULL))
4524                 DEBUG(8, ("\"description\" not found\n"));
4525         else
4526                 pull_utf8_talloc(mem_ctx,
4527                                  CONST_DISCARD(char **, &result->description),
4528                                  vals[0]);
4529         ldap_value_free(vals);
4530
4531         if ((result->account_name == NULL) ||
4532             (result->fullname == NULL) ||
4533             (result->description == NULL)) {
4534                 DEBUG(0, ("talloc failed\n"));
4535                 return False;
4536         }
4537
4538         vals = ldap_get_values(ld, entry, "sambaSid");
4539         if ((vals == NULL) || (vals[0] == NULL)) {
4540                 DEBUG(0, ("\"objectSid\" not found\n"));
4541                 return False;
4542         }
4543
4544         if (!string_to_sid(&sid, vals[0])) {
4545                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4546                 ldap_value_free(vals);
4547                 return False;
4548         }
4549         ldap_value_free(vals);
4550
4551         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4552                 DEBUG(0, ("sid %s does not belong to our domain\n",
4553                           sid_string_dbg(&sid)));
4554                 return False;
4555         }
4556
4557         return True;
4558 }
4559
4560
4561 static bool ldapsam_search_users(struct pdb_methods *methods,
4562                                  struct pdb_search *search,
4563                                  uint32 acct_flags)
4564 {
4565         struct ldapsam_privates *ldap_state =
4566                 (struct ldapsam_privates *)methods->private_data;
4567         struct ldap_search_state *state;
4568
4569         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4570         if (state == NULL) {
4571                 DEBUG(0, ("talloc failed\n"));
4572                 return False;
4573         }
4574
4575         state->connection = ldap_state->smbldap_state;
4576
4577         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4578                 state->base = lp_ldap_user_suffix();
4579         else if ((acct_flags != 0) &&
4580                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4581                 state->base = lp_ldap_machine_suffix();
4582         else
4583                 state->base = lp_ldap_suffix();
4584
4585         state->acct_flags = acct_flags;
4586         state->base = talloc_strdup(search->mem_ctx, state->base);
4587         state->scope = LDAP_SCOPE_SUBTREE;
4588         state->filter = get_ldap_filter(search->mem_ctx, "*");
4589         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4590                                     "displayName", "description",
4591                                     "sambaAcctFlags", NULL);
4592         state->attrsonly = 0;
4593         state->pagedresults_cookie = NULL;
4594         state->entries = NULL;
4595         state->ldap2displayentry = ldapuser2displayentry;
4596
4597         if ((state->filter == NULL) || (state->attrs == NULL)) {
4598                 DEBUG(0, ("talloc failed\n"));
4599                 return False;
4600         }
4601
4602         search->private_data = state;
4603         search->next_entry = ldapsam_search_next_entry;
4604         search->search_end = ldapsam_search_end;
4605
4606         return ldapsam_search_firstpage(search);
4607 }
4608
4609 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4610                                    TALLOC_CTX *mem_ctx,
4611                                    LDAP *ld, LDAPMessage *entry,
4612                                    struct samr_displayentry *result)
4613 {
4614         char **vals;
4615         DOM_SID sid;
4616         uint16 group_type;
4617
4618         result->account_name = "";
4619         result->fullname = "";
4620         result->description = "";
4621
4622
4623         vals = ldap_get_values(ld, entry, "sambaGroupType");
4624         if ((vals == NULL) || (vals[0] == NULL)) {
4625                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4626                 if (vals != NULL) {
4627                         ldap_value_free(vals);
4628                 }
4629                 return False;
4630         }
4631
4632         group_type = atoi(vals[0]);
4633
4634         if ((state->group_type != 0) &&
4635             ((state->group_type != group_type))) {
4636                 ldap_value_free(vals);
4637                 return False;
4638         }
4639
4640         ldap_value_free(vals);
4641
4642         /* display name is the NT group name */
4643
4644         vals = ldap_get_values(ld, entry, "displayName");
4645         if ((vals == NULL) || (vals[0] == NULL)) {
4646                 DEBUG(8, ("\"displayName\" not found\n"));
4647
4648                 /* fallback to the 'cn' attribute */
4649                 vals = ldap_get_values(ld, entry, "cn");
4650                 if ((vals == NULL) || (vals[0] == NULL)) {
4651                         DEBUG(5, ("\"cn\" not found\n"));
4652                         return False;
4653                 }
4654                 pull_utf8_talloc(mem_ctx,
4655                                  CONST_DISCARD(char **, &result->account_name),
4656                                  vals[0]);
4657         }
4658         else {
4659                 pull_utf8_talloc(mem_ctx,
4660                                  CONST_DISCARD(char **, &result->account_name),
4661                                  vals[0]);
4662         }
4663
4664         ldap_value_free(vals);
4665
4666         vals = ldap_get_values(ld, entry, "description");
4667         if ((vals == NULL) || (vals[0] == NULL))
4668                 DEBUG(8, ("\"description\" not found\n"));
4669         else
4670                 pull_utf8_talloc(mem_ctx,
4671                                  CONST_DISCARD(char **, &result->description),
4672                                  vals[0]);
4673         ldap_value_free(vals);
4674
4675         if ((result->account_name == NULL) ||
4676             (result->fullname == NULL) ||
4677             (result->description == NULL)) {
4678                 DEBUG(0, ("talloc failed\n"));
4679                 return False;
4680         }
4681
4682         vals = ldap_get_values(ld, entry, "sambaSid");
4683         if ((vals == NULL) || (vals[0] == NULL)) {
4684                 DEBUG(0, ("\"objectSid\" not found\n"));
4685                 if (vals != NULL) {
4686                         ldap_value_free(vals);
4687                 }
4688                 return False;
4689         }
4690
4691         if (!string_to_sid(&sid, vals[0])) {
4692                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4693                 return False;
4694         }
4695
4696         ldap_value_free(vals);
4697
4698         switch (group_type) {
4699                 case SID_NAME_DOM_GRP:
4700                 case SID_NAME_ALIAS:
4701
4702                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4703                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4704                         {
4705                                 DEBUG(0, ("%s is not in our domain\n",
4706                                           sid_string_dbg(&sid)));
4707                                 return False;
4708                         }
4709                         break;
4710
4711                 default:
4712                         DEBUG(0,("unkown group type: %d\n", group_type));
4713                         return False;
4714         }
4715
4716         return True;
4717 }
4718
4719 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4720                                      struct pdb_search *search,
4721                                      const DOM_SID *sid,
4722                                      enum lsa_SidType type)
4723 {
4724         struct ldapsam_privates *ldap_state =
4725                 (struct ldapsam_privates *)methods->private_data;
4726         struct ldap_search_state *state;
4727
4728         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4729         if (state == NULL) {
4730                 DEBUG(0, ("talloc failed\n"));
4731                 return False;
4732         }
4733
4734         state->connection = ldap_state->smbldap_state;
4735
4736         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4737         state->connection = ldap_state->smbldap_state;
4738         state->scope = LDAP_SCOPE_SUBTREE;
4739         state->filter = talloc_asprintf(search->mem_ctx,
4740                                         "(&(objectclass=sambaGroupMapping)"
4741                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4742                                         type, sid_string_static(sid));
4743         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4744                                     "displayName", "description",
4745                                     "sambaGroupType", NULL);
4746         state->attrsonly = 0;
4747         state->pagedresults_cookie = NULL;
4748         state->entries = NULL;
4749         state->group_type = type;
4750         state->ldap2displayentry = ldapgroup2displayentry;
4751
4752         if ((state->filter == NULL) || (state->attrs == NULL)) {
4753                 DEBUG(0, ("talloc failed\n"));
4754                 return False;
4755         }
4756
4757         search->private_data = state;
4758         search->next_entry = ldapsam_search_next_entry;
4759         search->search_end = ldapsam_search_end;
4760
4761         return ldapsam_search_firstpage(search);
4762 }
4763
4764 static bool ldapsam_search_groups(struct pdb_methods *methods,
4765                                   struct pdb_search *search)
4766 {
4767         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4768 }
4769
4770 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4771                                    struct pdb_search *search,
4772                                    const DOM_SID *sid)
4773 {
4774         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4775 }
4776
4777 static bool ldapsam_rid_algorithm(struct pdb_methods *methods)
4778 {
4779         return False;
4780 }
4781
4782 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4783                                     uint32 *rid)
4784 {
4785         struct smbldap_state *smbldap_state = priv->smbldap_state;
4786
4787         LDAPMessage *result = NULL;
4788         LDAPMessage *entry = NULL;
4789         LDAPMod **mods = NULL;
4790         NTSTATUS status;
4791         char *value;
4792         int rc;
4793         uint32 nextRid = 0;
4794         const char *dn;
4795
4796         TALLOC_CTX *mem_ctx;
4797
4798         mem_ctx = talloc_new(NULL);
4799         if (mem_ctx == NULL) {
4800                 DEBUG(0, ("talloc_new failed\n"));
4801                 return NT_STATUS_NO_MEMORY;
4802         }
4803
4804         status = smbldap_search_domain_info(smbldap_state, &result,
4805                                             get_global_sam_name(), False);
4806         if (!NT_STATUS_IS_OK(status)) {
4807                 DEBUG(3, ("Could not get domain info: %s\n",
4808                           nt_errstr(status)));
4809                 goto done;
4810         }
4811
4812         talloc_autofree_ldapmsg(mem_ctx, result);
4813
4814         entry = ldap_first_entry(priv2ld(priv), result);
4815         if (entry == NULL) {
4816                 DEBUG(0, ("Could not get domain info entry\n"));
4817                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4818                 goto done;
4819         }
4820
4821         /* Find the largest of the three attributes "sambaNextRid",
4822            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4823            concept of differentiating between user and group rids, and will
4824            use only "sambaNextRid" in the future. But for compatibility
4825            reasons I look if others have chosen different strategies -- VL */
4826
4827         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4828                                                 "sambaNextRid", mem_ctx);
4829         if (value != NULL) {
4830                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4831                 nextRid = MAX(nextRid, tmp);
4832         }
4833
4834         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4835                                                 "sambaNextUserRid", mem_ctx);
4836         if (value != NULL) {
4837                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4838                 nextRid = MAX(nextRid, tmp);
4839         }
4840
4841         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4842                                                 "sambaNextGroupRid", mem_ctx);
4843         if (value != NULL) {
4844                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4845                 nextRid = MAX(nextRid, tmp);
4846         }
4847
4848         if (nextRid == 0) {
4849                 nextRid = BASE_RID-1;
4850         }
4851
4852         nextRid += 1;
4853
4854         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4855                          talloc_asprintf(mem_ctx, "%d", nextRid));
4856         talloc_autofree_ldapmod(mem_ctx, mods);
4857
4858         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4859                 status = NT_STATUS_NO_MEMORY;
4860                 goto done;
4861         }
4862
4863         rc = smbldap_modify(smbldap_state, dn, mods);
4864
4865         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4866          * please retry" */
4867
4868         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4869
4870  done:
4871         if (NT_STATUS_IS_OK(status)) {
4872                 *rid = nextRid;
4873         }
4874
4875         TALLOC_FREE(mem_ctx);
4876         return status;
4877 }
4878
4879 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4880 {
4881         int i;
4882
4883         for (i=0; i<10; i++) {
4884                 NTSTATUS result = ldapsam_get_new_rid(
4885                         (struct ldapsam_privates *)methods->private_data, rid);
4886                 if (NT_STATUS_IS_OK(result)) {
4887                         return result;
4888                 }
4889
4890                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4891                         return result;
4892                 }
4893
4894                 /* The ldap update failed (maybe a race condition), retry */
4895         }
4896
4897         /* Tried 10 times, fail. */
4898         return NT_STATUS_ACCESS_DENIED;
4899 }
4900
4901 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4902 {
4903         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4904         return NT_STATUS_IS_OK(result) ? True : False;
4905 }
4906
4907 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
4908                               const DOM_SID *sid,
4909                               union unid_t *id, enum lsa_SidType *type)
4910 {
4911         struct ldapsam_privates *priv =
4912                 (struct ldapsam_privates *)methods->private_data;
4913         char *filter;
4914         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4915                                 NULL };
4916         LDAPMessage *result = NULL;
4917         LDAPMessage *entry = NULL;
4918         bool ret = False;
4919         char *value;
4920         int rc;
4921
4922         TALLOC_CTX *mem_ctx;
4923
4924         mem_ctx = talloc_new(NULL);
4925         if (mem_ctx == NULL) {
4926                 DEBUG(0, ("talloc_new failed\n"));
4927                 return False;
4928         }
4929
4930         filter = talloc_asprintf(mem_ctx,
4931                                  "(&(sambaSid=%s)"
4932                                  "(|(objectClass=%s)(objectClass=%s)))",
4933                                  sid_string_talloc(mem_ctx, sid),
4934                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4935         if (filter == NULL) {
4936                 DEBUG(5, ("talloc_asprintf failed\n"));
4937                 goto done;
4938         }
4939
4940         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4941                                    attrs, &result);
4942         if (rc != LDAP_SUCCESS) {
4943                 goto done;
4944         }
4945         talloc_autofree_ldapmsg(mem_ctx, result);
4946
4947         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4948                 DEBUG(10, ("Got %d entries, expected one\n",
4949                            ldap_count_entries(priv2ld(priv), result)));
4950                 goto done;
4951         }
4952
4953         entry = ldap_first_entry(priv2ld(priv), result);
4954
4955         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4956                                                 "sambaGroupType", mem_ctx);
4957
4958         if (value != NULL) {
4959                 const char *gid_str;
4960                 /* It's a group */
4961
4962                 gid_str = smbldap_talloc_single_attribute(
4963                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4964                 if (gid_str == NULL) {
4965                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4966                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4967                                                     entry)));
4968                         goto done;
4969                 }
4970
4971                 id->gid = strtoul(gid_str, NULL, 10);
4972                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4973                 ret = True;
4974                 goto done;
4975         }
4976
4977         /* It must be a user */
4978
4979         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4980                                                 "uidNumber", mem_ctx);
4981         if (value == NULL) {
4982                 DEBUG(1, ("Could not find uidNumber in %s\n",
4983                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4984                 goto done;
4985         }
4986
4987         id->uid = strtoul(value, NULL, 10);
4988         *type = SID_NAME_USER;
4989
4990         ret = True;
4991  done:
4992         TALLOC_FREE(mem_ctx);
4993         return ret;
4994 }
4995
4996 /*
4997  * The following functions is called only if
4998  * ldapsam:trusted and ldapsam:editposix are
4999  * set to true
5000  */
5001
5002 /*
5003  * ldapsam_create_user creates a new
5004  * posixAccount and sambaSamAccount object
5005  * in the ldap users subtree
5006  *
5007  * The uid is allocated by winbindd.
5008  */
5009
5010 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
5011                                     TALLOC_CTX *tmp_ctx, const char *name,
5012                                     uint32 acb_info, uint32 *rid)
5013 {
5014         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5015         LDAPMessage *entry = NULL;
5016         LDAPMessage *result = NULL;
5017         uint32 num_result;
5018         bool is_machine = False;
5019         bool add_posix = False;
5020         LDAPMod **mods = NULL;
5021         struct samu *user;
5022         char *filter;
5023         char *username;
5024         char *homedir;
5025         char *gidstr;
5026         char *uidstr;
5027         char *shell;
5028         const char *dn = NULL;
5029         DOM_SID group_sid;
5030         DOM_SID user_sid;
5031         gid_t gid = -1;
5032         uid_t uid = -1;
5033         NTSTATUS ret;
5034         int rc;
5035
5036         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
5037               acb_info & ACB_WSTRUST ||
5038               acb_info & ACB_SVRTRUST ||
5039               acb_info & ACB_DOMTRUST) {
5040                 is_machine = True;
5041         }
5042
5043         username = escape_ldap_string_alloc(name);
5044         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
5045                                  username, LDAP_OBJ_POSIXACCOUNT);
5046         SAFE_FREE(username);
5047
5048         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5049         if (rc != LDAP_SUCCESS) {
5050                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
5051                 return NT_STATUS_UNSUCCESSFUL;
5052         }
5053         talloc_autofree_ldapmsg(tmp_ctx, result);
5054
5055         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5056
5057         if (num_result > 1) {
5058                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
5059                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5060         }
5061
5062         if (num_result == 1) {
5063                 char *tmp;
5064                 /* check if it is just a posix account.
5065                  * or if there is a sid attached to this entry
5066                  */
5067
5068                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5069                 if (!entry) {
5070                         return NT_STATUS_UNSUCCESSFUL;
5071                 }
5072
5073                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5074                 if (tmp) {
5075                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5076                         return NT_STATUS_USER_EXISTS;
5077                 }
5078
5079                 /* it is just a posix account, retrieve the dn for later use */
5080                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5081                 if (!dn) {
5082                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5083                         return NT_STATUS_NO_MEMORY;
5084                 }
5085         }
5086
5087         if (num_result == 0) {
5088                 add_posix = True;
5089         }
5090
5091         /* Create the basic samu structure and generate the mods for the ldap commit */
5092         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5093                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5094                 return ret;
5095         }
5096
5097         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5098
5099         user = samu_new(tmp_ctx);
5100         if (!user) {
5101                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5102                 return NT_STATUS_NO_MEMORY;
5103         }
5104
5105         if (!pdb_set_username(user, name, PDB_SET)) {
5106                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5107                 return NT_STATUS_UNSUCCESSFUL;
5108         }
5109         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5110                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5111                 return NT_STATUS_UNSUCCESSFUL;
5112         }
5113         if (is_machine) {
5114                 if (acb_info & ACB_NORMAL) {
5115                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5116                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5117                                 return NT_STATUS_UNSUCCESSFUL;
5118                         }
5119                 } else {
5120                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5121                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5122                                 return NT_STATUS_UNSUCCESSFUL;
5123                         }
5124                 }
5125         } else {
5126                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5127                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5128                         return NT_STATUS_UNSUCCESSFUL;
5129                 }
5130         }
5131
5132         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5133                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5134                 return NT_STATUS_UNSUCCESSFUL;
5135         }
5136
5137         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
5138                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5139                 return NT_STATUS_UNSUCCESSFUL;
5140         }
5141
5142         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5143                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5144         }
5145         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5146
5147         if (add_posix) {
5148                 char *escape_name;
5149
5150                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5151
5152                 /* retrieve the Domain Users group gid */
5153                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
5154                     !sid_to_gid(&group_sid, &gid)) {
5155                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5156                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5157                 }
5158
5159                 /* lets allocate a new userid for this user */
5160                 if (!winbind_allocate_uid(&uid)) {
5161                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5162                         return NT_STATUS_UNSUCCESSFUL;
5163                 }
5164
5165
5166                 if (is_machine) {
5167                         /* TODO: choose a more appropriate default for machines */
5168                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5169                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5170                 } else {
5171                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5172                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5173                 }
5174                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
5175                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5176
5177                 escape_name = escape_rdn_val_string_alloc(name);
5178                 if (!escape_name) {
5179                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5180                         return NT_STATUS_NO_MEMORY;
5181                 }
5182
5183                 if (is_machine) {
5184                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5185                 } else {
5186                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5187                 }
5188
5189                 SAFE_FREE(escape_name);
5190
5191                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5192                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5193                         return NT_STATUS_NO_MEMORY;
5194                 }
5195
5196                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5197                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5198                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5199                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5200                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5201                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5202                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5203         }
5204
5205         talloc_autofree_ldapmod(tmp_ctx, mods);
5206
5207         if (add_posix) {
5208                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5209         } else {
5210                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5211         }
5212
5213         if (rc != LDAP_SUCCESS) {
5214                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5215                 return NT_STATUS_UNSUCCESSFUL;
5216         }
5217
5218         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5219
5220         flush_pwnam_cache();
5221
5222         return NT_STATUS_OK;
5223 }
5224
5225 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5226 {
5227         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5228         LDAPMessage *result = NULL;
5229         LDAPMessage *entry = NULL;
5230         int num_result;
5231         const char *dn;
5232         char *filter;
5233         int rc;
5234
5235         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5236
5237         filter = talloc_asprintf(tmp_ctx,
5238                                  "(&(uid=%s)"
5239                                  "(objectClass=%s)"
5240                                  "(objectClass=%s))",
5241                                  pdb_get_username(sam_acct),
5242                                  LDAP_OBJ_POSIXACCOUNT,
5243                                  LDAP_OBJ_SAMBASAMACCOUNT);
5244         if (filter == NULL) {
5245                 return NT_STATUS_NO_MEMORY;
5246         }
5247
5248         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5249         if (rc != LDAP_SUCCESS) {
5250                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5251                 return NT_STATUS_UNSUCCESSFUL;
5252         }
5253         talloc_autofree_ldapmsg(tmp_ctx, result);
5254
5255         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5256
5257         if (num_result == 0) {
5258                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5259                 return NT_STATUS_NO_SUCH_USER;
5260         }
5261
5262         if (num_result > 1) {
5263                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5264                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5265         }
5266
5267         entry = ldap_first_entry(priv2ld(ldap_state), result);
5268         if (!entry) {
5269                 return NT_STATUS_UNSUCCESSFUL;
5270         }
5271
5272         /* it is just a posix account, retrieve the dn for later use */
5273         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5274         if (!dn) {
5275                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5276                 return NT_STATUS_NO_MEMORY;
5277         }
5278
5279         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5280         if (rc != LDAP_SUCCESS) {
5281                 return NT_STATUS_UNSUCCESSFUL;
5282         }
5283
5284         flush_pwnam_cache();
5285
5286         return NT_STATUS_OK;
5287 }
5288
5289 /*
5290  * ldapsam_create_group creates a new
5291  * posixGroup and sambaGroupMapping object
5292  * in the ldap groups subtree
5293  *
5294  * The gid is allocated by winbindd.
5295  */
5296
5297 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5298                                          TALLOC_CTX *tmp_ctx,
5299                                          const char *name,
5300                                          uint32 *rid)
5301 {
5302         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5303         NTSTATUS ret;
5304         LDAPMessage *entry = NULL;
5305         LDAPMessage *result = NULL;
5306         uint32 num_result;
5307         bool is_new_entry = False;
5308         LDAPMod **mods = NULL;
5309         char *filter;
5310         char *groupsidstr;
5311         char *groupname;
5312         char *grouptype;
5313         char *gidstr;
5314         const char *dn = NULL;
5315         DOM_SID group_sid;
5316         gid_t gid = -1;
5317         int rc;
5318
5319         groupname = escape_ldap_string_alloc(name);
5320         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5321                                  groupname, LDAP_OBJ_POSIXGROUP);
5322         SAFE_FREE(groupname);
5323
5324         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5325         if (rc != LDAP_SUCCESS) {
5326                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5327                 return NT_STATUS_UNSUCCESSFUL;
5328         }
5329         talloc_autofree_ldapmsg(tmp_ctx, result);
5330
5331         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5332
5333         if (num_result > 1) {
5334                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5335                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5336         }
5337
5338         if (num_result == 1) {
5339                 char *tmp;
5340                 /* check if it is just a posix group.
5341                  * or if there is a sid attached to this entry
5342                  */
5343
5344                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5345                 if (!entry) {
5346                         return NT_STATUS_UNSUCCESSFUL;
5347                 }
5348
5349                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5350                 if (tmp) {
5351                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5352                         return NT_STATUS_GROUP_EXISTS;
5353                 }
5354
5355                 /* it is just a posix group, retrieve the gid and the dn for later use */
5356                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5357                 if (!tmp) {
5358                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5359                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5360                 }
5361
5362                 gid = strtoul(tmp, NULL, 10);
5363
5364                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5365                 if (!dn) {
5366                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5367                         return NT_STATUS_NO_MEMORY;
5368                 }
5369         }
5370
5371         if (num_result == 0) {
5372                 char *escape_name;
5373
5374                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5375
5376                 is_new_entry = True;
5377
5378                 /* lets allocate a new groupid for this group */
5379                 if (!winbind_allocate_gid(&gid)) {
5380                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5381                         return NT_STATUS_UNSUCCESSFUL;
5382                 }
5383
5384                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5385
5386                 escape_name = escape_rdn_val_string_alloc(name);
5387                 if (!escape_name) {
5388                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5389                         return NT_STATUS_NO_MEMORY;
5390                 }
5391
5392                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5393
5394                 SAFE_FREE(escape_name);
5395
5396                 if (!gidstr || !dn) {
5397                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5398                         return NT_STATUS_NO_MEMORY;
5399                 }
5400
5401                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5402                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5403                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5404         }
5405
5406         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5407                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5408                 return ret;
5409         }
5410
5411         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5412
5413         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5414                                                                &group_sid));
5415         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5416
5417         if (!groupsidstr || !grouptype) {
5418                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5419                 return NT_STATUS_NO_MEMORY;
5420         }
5421
5422         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5423         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5424         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5425         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5426         talloc_autofree_ldapmod(tmp_ctx, mods);
5427
5428         if (is_new_entry) {
5429                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5430 #if 0
5431                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5432                         /* This call may fail with rfc2307bis schema */
5433                         /* Retry adding a structural class */
5434                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5435                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5436                 }
5437 #endif
5438         } else {
5439                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5440         }
5441
5442         if (rc != LDAP_SUCCESS) {
5443                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5444                 return NT_STATUS_UNSUCCESSFUL;
5445         }
5446
5447         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5448
5449         return NT_STATUS_OK;
5450 }
5451
5452 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5453 {
5454         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5455         LDAPMessage *result = NULL;
5456         LDAPMessage *entry = NULL;
5457         int num_result;
5458         const char *dn;
5459         char *gidstr;
5460         char *filter;
5461         DOM_SID group_sid;
5462         int rc;
5463
5464         /* get the group sid */
5465         sid_compose(&group_sid, get_global_sam_sid(), rid);
5466
5467         filter = talloc_asprintf(tmp_ctx,
5468                                  "(&(sambaSID=%s)"
5469                                  "(objectClass=%s)"
5470                                  "(objectClass=%s))",
5471                                  sid_string_talloc(tmp_ctx, &group_sid),
5472                                  LDAP_OBJ_POSIXGROUP,
5473                                  LDAP_OBJ_GROUPMAP);
5474         if (filter == NULL) {
5475                 return NT_STATUS_NO_MEMORY;
5476         }
5477
5478         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5479         if (rc != LDAP_SUCCESS) {
5480                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5481                 return NT_STATUS_UNSUCCESSFUL;
5482         }
5483         talloc_autofree_ldapmsg(tmp_ctx, result);
5484
5485         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5486
5487         if (num_result == 0) {
5488                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5489                 return NT_STATUS_NO_SUCH_GROUP;
5490         }
5491
5492         if (num_result > 1) {
5493                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5494                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5495         }
5496
5497         entry = ldap_first_entry(priv2ld(ldap_state), result);
5498         if (!entry) {
5499                 return NT_STATUS_UNSUCCESSFUL;
5500         }
5501
5502         /* here it is, retrieve the dn for later use */
5503         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5504         if (!dn) {
5505                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5506                 return NT_STATUS_NO_MEMORY;
5507         }
5508
5509         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5510         if (!gidstr) {
5511                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5512                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5513         }
5514
5515         /* check no user have this group marked as primary group */
5516         filter = talloc_asprintf(tmp_ctx,
5517                                  "(&(gidNumber=%s)"
5518                                  "(objectClass=%s)"
5519                                  "(objectClass=%s))",
5520                                  gidstr,
5521                                  LDAP_OBJ_POSIXACCOUNT,
5522                                  LDAP_OBJ_SAMBASAMACCOUNT);
5523
5524         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5525         if (rc != LDAP_SUCCESS) {
5526                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5527                 return NT_STATUS_UNSUCCESSFUL;
5528         }
5529         talloc_autofree_ldapmsg(tmp_ctx, result);
5530
5531         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5532
5533         if (num_result != 0) {
5534                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5535                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5536         }
5537
5538         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5539         if (rc != LDAP_SUCCESS) {
5540                 return NT_STATUS_UNSUCCESSFUL;
5541         }
5542
5543         return NT_STATUS_OK;
5544 }
5545
5546 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5547                                         TALLOC_CTX *tmp_ctx,
5548                                         uint32 group_rid,
5549                                         uint32 member_rid,
5550                                         int modop)
5551 {
5552         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5553         LDAPMessage *entry = NULL;
5554         LDAPMessage *result = NULL;
5555         uint32 num_result;
5556         LDAPMod **mods = NULL;
5557         char *filter;
5558         char *uidstr;
5559         const char *dn = NULL;
5560         DOM_SID group_sid;
5561         DOM_SID member_sid;
5562         int rc;
5563
5564         switch (modop) {
5565         case LDAP_MOD_ADD:
5566                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5567                 break;
5568         case LDAP_MOD_DELETE:
5569                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5570                 break;
5571         default:
5572                 return NT_STATUS_UNSUCCESSFUL;
5573         }
5574
5575         /* get member sid  */
5576         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5577
5578         /* get the group sid */
5579         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5580
5581         filter = talloc_asprintf(tmp_ctx,
5582                                  "(&(sambaSID=%s)"
5583                                  "(objectClass=%s)"
5584                                  "(objectClass=%s))",
5585                                  sid_string_talloc(tmp_ctx, &member_sid),
5586                                  LDAP_OBJ_POSIXACCOUNT,
5587                                  LDAP_OBJ_SAMBASAMACCOUNT);
5588         if (filter == NULL) {
5589                 return NT_STATUS_NO_MEMORY;
5590         }
5591
5592         /* get the member uid */
5593         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5594         if (rc != LDAP_SUCCESS) {
5595                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5596                 return NT_STATUS_UNSUCCESSFUL;
5597         }
5598         talloc_autofree_ldapmsg(tmp_ctx, result);
5599
5600         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5601
5602         if (num_result == 0) {
5603                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5604                 return NT_STATUS_NO_SUCH_MEMBER;
5605         }
5606
5607         if (num_result > 1) {
5608                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5609                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5610         }
5611
5612         entry = ldap_first_entry(priv2ld(ldap_state), result);
5613         if (!entry) {
5614                 return NT_STATUS_UNSUCCESSFUL;
5615         }
5616
5617         if (modop == LDAP_MOD_DELETE) {
5618                 /* check if we are trying to remove the member from his primary group */
5619                 char *gidstr;
5620                 gid_t user_gid, group_gid;
5621
5622                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5623                 if (!gidstr) {
5624                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5625                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5626                 }
5627
5628                 user_gid = strtoul(gidstr, NULL, 10);
5629
5630                 if (!sid_to_gid(&group_sid, &group_gid)) {
5631                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5632                         return NT_STATUS_UNSUCCESSFUL;
5633                 }
5634
5635                 if (user_gid == group_gid) {
5636                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5637                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5638                 }
5639         }
5640
5641         /* here it is, retrieve the uid for later use */
5642         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5643         if (!uidstr) {
5644                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5645                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5646         }
5647
5648         filter = talloc_asprintf(tmp_ctx,
5649                                  "(&(sambaSID=%s)"
5650                                  "(objectClass=%s)"
5651                                  "(objectClass=%s))",
5652                                  sid_string_talloc(tmp_ctx, &group_sid),
5653                                  LDAP_OBJ_POSIXGROUP,
5654                                  LDAP_OBJ_GROUPMAP);
5655
5656         /* get the group */
5657         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5658         if (rc != LDAP_SUCCESS) {
5659                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5660                 return NT_STATUS_UNSUCCESSFUL;
5661         }
5662         talloc_autofree_ldapmsg(tmp_ctx, result);
5663
5664         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5665
5666         if (num_result == 0) {
5667                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5668                 return NT_STATUS_NO_SUCH_GROUP;
5669         }
5670
5671         if (num_result > 1) {
5672                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5673                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5674         }
5675
5676         entry = ldap_first_entry(priv2ld(ldap_state), result);
5677         if (!entry) {
5678                 return NT_STATUS_UNSUCCESSFUL;
5679         }
5680
5681         /* here it is, retrieve the dn for later use */
5682         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5683         if (!dn) {
5684                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5685                 return NT_STATUS_NO_MEMORY;
5686         }
5687
5688         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5689
5690         talloc_autofree_ldapmod(tmp_ctx, mods);
5691
5692         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5693         if (rc != LDAP_SUCCESS) {
5694                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5695                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5696                         return NT_STATUS_MEMBER_IN_GROUP;
5697                 }
5698                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5699                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5700                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5701                 }
5702                 return NT_STATUS_UNSUCCESSFUL;
5703         }
5704
5705         return NT_STATUS_OK;
5706 }
5707
5708 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5709                                      TALLOC_CTX *tmp_ctx,
5710                                      uint32 group_rid,
5711                                      uint32 member_rid)
5712 {
5713         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5714 }
5715 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5716                                      TALLOC_CTX *tmp_ctx,
5717                                      uint32 group_rid,
5718                                      uint32 member_rid)
5719 {
5720         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5721 }
5722
5723 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5724                                           TALLOC_CTX *mem_ctx,
5725                                           struct samu *sampass)
5726 {
5727         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5728         LDAPMessage *entry = NULL;
5729         LDAPMessage *result = NULL;
5730         uint32 num_result;
5731         LDAPMod **mods = NULL;
5732         char *filter;
5733         char *escape_username;
5734         char *gidstr;
5735         const char *dn = NULL;
5736         gid_t gid;
5737         int rc;
5738
5739         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5740
5741         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5742                 DEBUG(0,("ldapsam_set_primary_group: failed to retieve gid from user's group SID!\n"));
5743                 return NT_STATUS_UNSUCCESSFUL;
5744         }
5745         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5746         if (!gidstr) {
5747                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5748                 return NT_STATUS_NO_MEMORY;
5749         }
5750
5751         escape_username = escape_ldap_string_alloc(pdb_get_username(sampass));
5752         if (escape_username== NULL) {
5753                 return NT_STATUS_NO_MEMORY;
5754         }
5755
5756         filter = talloc_asprintf(mem_ctx,
5757                                  "(&(uid=%s)"
5758                                  "(objectClass=%s)"
5759                                  "(objectClass=%s))",
5760                                  escape_username,
5761                                  LDAP_OBJ_POSIXACCOUNT,
5762                                  LDAP_OBJ_SAMBASAMACCOUNT);
5763
5764         SAFE_FREE(escape_username);
5765
5766         if (filter == NULL) {
5767                 return NT_STATUS_NO_MEMORY;
5768         }
5769
5770         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5771         if (rc != LDAP_SUCCESS) {
5772                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5773                 return NT_STATUS_UNSUCCESSFUL;
5774         }
5775         talloc_autofree_ldapmsg(mem_ctx, result);
5776
5777         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5778
5779         if (num_result == 0) {
5780                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5781                 return NT_STATUS_NO_SUCH_USER;
5782         }
5783
5784         if (num_result > 1) {
5785                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5786                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5787         }
5788
5789         entry = ldap_first_entry(priv2ld(ldap_state), result);
5790         if (!entry) {
5791                 return NT_STATUS_UNSUCCESSFUL;
5792         }
5793
5794         /* retrieve the dn for later use */
5795         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5796         if (!dn) {
5797                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5798                 return NT_STATUS_NO_MEMORY;
5799         }
5800
5801         /* remove the old one, and add the new one, this way we do not risk races */
5802         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5803
5804         if (mods == NULL) {
5805                 return NT_STATUS_OK;
5806         }
5807
5808         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5809
5810         if (rc != LDAP_SUCCESS) {
5811                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5812                          pdb_get_username(sampass), gidstr));
5813                 return NT_STATUS_UNSUCCESSFUL;
5814         }
5815
5816         flush_pwnam_cache();
5817
5818         return NT_STATUS_OK;
5819 }
5820
5821
5822 /**********************************************************************
5823  trusted domains functions
5824  *********************************************************************/
5825
5826 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
5827                            const char *domain)
5828 {
5829         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
5830                                ldap_state->domain_dn);
5831 }
5832
5833 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
5834                                   const char *domain, LDAPMessage **entry)
5835 {
5836         int rc;
5837         char *filter;
5838         int scope = LDAP_SCOPE_SUBTREE;
5839         const char **attrs = NULL; /* NULL: get all attrs */
5840         int attrsonly = 0; /* 0: return values too */
5841         LDAPMessage *result = NULL;
5842         char *trusted_dn;
5843         uint32 num_result;
5844
5845         filter = talloc_asprintf(talloc_tos(),
5846                                  "(&(objectClass=%s)(sambaDomainName=%s))",
5847                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
5848
5849         trusted_dn = trusteddom_dn(ldap_state, domain);
5850         if (trusted_dn == NULL) {
5851                 return False;
5852         }
5853         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
5854                             filter, attrs, attrsonly, &result);
5855
5856         if (rc == LDAP_NO_SUCH_OBJECT) {
5857                 *entry = NULL;
5858                 return True;
5859         }
5860
5861         if (rc != LDAP_SUCCESS) {
5862                 return False;
5863         }
5864
5865         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5866
5867         if (num_result > 1) {
5868                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
5869                           "sambaTrustedDomainPassword object for domain '%s'"
5870                           "?!\n", domain));
5871                 return False;
5872         }
5873
5874         if (num_result == 0) {
5875                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
5876                           "sambaTrustedDomainPassword object for domain %s.\n",
5877                           domain));
5878                 *entry = NULL;
5879         } else {
5880                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
5881         }
5882
5883         return True;
5884 }
5885
5886 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
5887                                       const char *domain,
5888                                       char** pwd,
5889                                       DOM_SID *sid,
5890                                       time_t *pass_last_set_time)
5891 {
5892         struct ldapsam_privates *ldap_state =
5893                 (struct ldapsam_privates *)methods->private_data;
5894         LDAPMessage *entry = NULL;
5895
5896         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
5897
5898         if (!get_trusteddom_pw_int(ldap_state, domain, &entry) ||
5899             (entry == NULL))
5900         {
5901                 return False;
5902         }
5903
5904         /* password */
5905         if (pwd != NULL) {
5906                 char *pwd_str;
5907                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5908                                 entry, "sambaClearTextPassword", talloc_tos());
5909                 if (pwd_str == NULL) {
5910                         return False;
5911                 }
5912                 /* trusteddom_pw routines do not use talloc yet... */
5913                 *pwd = SMB_STRDUP(pwd_str);
5914                 if (*pwd == NULL) {
5915                         return False;
5916                 }
5917         }
5918
5919         /* last change time */
5920         if (pass_last_set_time != NULL) {
5921                 char *time_str;
5922                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5923                                 entry, "sambaPwdLastSet", talloc_tos());
5924                 if (time_str == NULL) {
5925                         return False;
5926                 }
5927                 *pass_last_set_time = (time_t)atol(time_str);
5928         }
5929
5930         /* domain sid */
5931         if (sid != NULL) {
5932                 char *sid_str;
5933                 DOM_SID *dom_sid;
5934                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5935                                                           entry, "sambaSID",
5936                                                           talloc_tos());
5937                 if (sid_str == NULL) {
5938                         return False;
5939                 }
5940                 dom_sid = string_sid_talloc(talloc_tos(), sid_str);
5941                 if (dom_sid == NULL) {
5942                         return False;
5943                 }
5944                 sid_copy(sid, dom_sid);
5945         }
5946
5947         return True;
5948 }
5949
5950 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
5951                                       const char* domain,
5952                                       const char* pwd,
5953                                       const DOM_SID *sid)
5954 {
5955         struct ldapsam_privates *ldap_state =
5956                 (struct ldapsam_privates *)methods->private_data;
5957         LDAPMessage *entry = NULL;
5958         LDAPMod **mods = NULL;
5959         char *prev_pwd = NULL;
5960         char *trusted_dn = NULL;
5961         int rc;
5962
5963         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
5964
5965         /*
5966          * get the current entry (if there is one) in order to put the
5967          * current password into the previous password attribute
5968          */
5969         if (!get_trusteddom_pw_int(ldap_state, domain, &entry)) {
5970                 return False;
5971         }
5972
5973         mods = NULL;
5974         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
5975                          "sambaTrustedDomainPassword");
5976         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
5977                          domain);
5978         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
5979                          sid_string_tos(sid));
5980         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
5981                          talloc_asprintf(talloc_tos(), "%li", time(NULL)));
5982         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5983                          "sambaClearTextPassword", pwd);
5984         if (entry != NULL) {
5985                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5986                                 entry, "sambaClearTextPassword", talloc_tos());
5987                 if (prev_pwd != NULL) {
5988                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5989                                          "sambaPreviousClearTextPassword",
5990                                          prev_pwd);
5991                 }
5992         }
5993
5994         trusted_dn = trusteddom_dn(ldap_state, domain);
5995         if (trusted_dn == NULL) {
5996                 return False;
5997         }
5998         if (entry == NULL) {
5999                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
6000         } else {
6001                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
6002         }
6003
6004         if (rc != LDAP_SUCCESS) {
6005                 DEBUG(1, ("error writing trusted domain password!\n"));
6006                 return False;
6007         }
6008
6009         return True;
6010 }
6011
6012 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
6013                                       const char *domain)
6014 {
6015         int rc;
6016         struct ldapsam_privates *ldap_state =
6017                 (struct ldapsam_privates *)methods->private_data;
6018         LDAPMessage *entry = NULL;
6019         const char *trusted_dn;
6020
6021         if (!get_trusteddom_pw_int(ldap_state, domain, &entry)) {
6022                 return False;
6023         }
6024
6025         if (entry == NULL) {
6026                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
6027                           "%s\n", domain));
6028                 return True;
6029         }
6030
6031         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
6032                                        entry);
6033         if (trusted_dn == NULL) {
6034                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
6035                 return False;
6036         }
6037
6038         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
6039         if (rc != LDAP_SUCCESS) {
6040                 return False;
6041         }
6042
6043         return True;
6044 }
6045
6046 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
6047                                          TALLOC_CTX *mem_ctx,
6048                                          uint32 *num_domains,
6049                                          struct trustdom_info ***domains)
6050 {
6051         int rc;
6052         struct ldapsam_privates *ldap_state =
6053                 (struct ldapsam_privates *)methods->private_data;
6054         char *filter;
6055         int scope = LDAP_SCOPE_SUBTREE;
6056         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
6057         int attrsonly = 0; /* 0: return values too */
6058         LDAPMessage *result = NULL;
6059         LDAPMessage *entry = NULL;
6060
6061         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
6062                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
6063
6064         rc = smbldap_search(ldap_state->smbldap_state,
6065                             ldap_state->domain_dn,
6066                             scope,
6067                             filter,
6068                             attrs,
6069                             attrsonly,
6070                             &result);
6071
6072         if (rc != LDAP_SUCCESS) {
6073                 return NT_STATUS_UNSUCCESSFUL;
6074         }
6075
6076         *num_domains = 0;
6077         if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) {
6078                 DEBUG(1, ("talloc failed\n"));
6079                 return NT_STATUS_NO_MEMORY;
6080         }
6081
6082         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6083              entry != NULL;
6084              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6085         {
6086                 char *dom_name, *dom_sid_str;
6087                 struct trustdom_info *dom_info;
6088
6089                 dom_info = TALLOC_P(*domains, struct trustdom_info);
6090                 if (dom_info == NULL) {
6091                         DEBUG(1, ("talloc failed\n"));
6092                         return NT_STATUS_NO_MEMORY;
6093                 }
6094
6095                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6096                                                            entry,
6097                                                            "sambaDomainName",
6098                                                            talloc_tos());
6099                 if (dom_name == NULL) {
6100                         DEBUG(1, ("talloc failed\n"));
6101                         return NT_STATUS_NO_MEMORY;
6102                 }
6103                 dom_info->name = dom_name;
6104
6105                 dom_sid_str = smbldap_talloc_single_attribute(
6106                                         priv2ld(ldap_state), entry, "sambaSID",
6107                                         talloc_tos());
6108                 if (dom_sid_str == NULL) {
6109                         DEBUG(1, ("talloc failed\n"));
6110                         return NT_STATUS_NO_MEMORY;
6111                 }
6112                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6113                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6114                                   dom_sid_str));
6115                         return NT_STATUS_UNSUCCESSFUL;
6116                 }
6117
6118                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6119                              domains, num_domains);
6120
6121                 if (*domains == NULL) {
6122                         DEBUG(1, ("talloc failed\n"));
6123                         return NT_STATUS_NO_MEMORY;
6124                 }
6125         }
6126
6127         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6128         return NT_STATUS_OK;
6129 }
6130
6131
6132 /**********************************************************************
6133  Housekeeping
6134  *********************************************************************/
6135
6136 static void free_private_data(void **vp)
6137 {
6138         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6139
6140         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6141
6142         if ((*ldap_state)->result != NULL) {
6143                 ldap_msgfree((*ldap_state)->result);
6144                 (*ldap_state)->result = NULL;
6145         }
6146         if ((*ldap_state)->domain_dn != NULL) {
6147                 SAFE_FREE((*ldap_state)->domain_dn);
6148         }
6149
6150         *ldap_state = NULL;
6151
6152         /* No need to free any further, as it is talloc()ed */
6153 }
6154
6155 /*********************************************************************
6156  Intitalise the parts of the pdb_methods structure that are common to
6157  all pdb_ldap modes
6158 *********************************************************************/
6159
6160 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6161 {
6162         NTSTATUS nt_status;
6163         struct ldapsam_privates *ldap_state;
6164
6165         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6166                 return nt_status;
6167         }
6168
6169         (*pdb_method)->name = "ldapsam";
6170
6171         (*pdb_method)->setsampwent = ldapsam_setsampwent;
6172         (*pdb_method)->endsampwent = ldapsam_endsampwent;
6173         (*pdb_method)->getsampwent = ldapsam_getsampwent;
6174         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6175         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6176         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6177         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6178         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6179         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6180
6181         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6182         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6183         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6184         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6185         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6186         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6187         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6188
6189         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6190         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6191
6192         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6193
6194         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
6195         (*pdb_method)->new_rid = ldapsam_new_rid;
6196
6197         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6198         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6199         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6200         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6201
6202         /* TODO: Setup private data and free */
6203
6204         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
6205                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6206                 return NT_STATUS_NO_MEMORY;
6207         }
6208
6209         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6210                                  location, &ldap_state->smbldap_state);
6211
6212         if ( !NT_STATUS_IS_OK(nt_status) ) {
6213                 return nt_status;
6214         }
6215
6216         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6217                 return NT_STATUS_NO_MEMORY;
6218         }
6219
6220         (*pdb_method)->private_data = ldap_state;
6221
6222         (*pdb_method)->free_private_data = free_private_data;
6223
6224         return NT_STATUS_OK;
6225 }
6226
6227 /**********************************************************************
6228  Initialise the 'compat' mode for pdb_ldap
6229  *********************************************************************/
6230
6231 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6232 {
6233         NTSTATUS nt_status;
6234         struct ldapsam_privates *ldap_state;
6235         char *uri = talloc_strdup( NULL, location );
6236
6237         trim_char( uri, '\"', '\"' );
6238         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6239         if ( uri )
6240                 TALLOC_FREE( uri );
6241
6242         if ( !NT_STATUS_IS_OK(nt_status) ) {
6243                 return nt_status;
6244         }
6245
6246         (*pdb_method)->name = "ldapsam_compat";
6247
6248         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6249         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6250
6251         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6252
6253         return NT_STATUS_OK;
6254 }
6255
6256 /**********************************************************************
6257  Initialise the normal mode for pdb_ldap
6258  *********************************************************************/
6259
6260 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6261 {
6262         NTSTATUS nt_status;
6263         struct ldapsam_privates *ldap_state = NULL;
6264         uint32 alg_rid_base;
6265         char *alg_rid_base_string = NULL;
6266         LDAPMessage *result = NULL;
6267         LDAPMessage *entry = NULL;
6268         DOM_SID ldap_domain_sid;
6269         DOM_SID secrets_domain_sid;
6270         char *domain_sid_string = NULL;
6271         char *dn = NULL;
6272         char *uri = talloc_strdup( NULL, location );
6273
6274         trim_char( uri, '\"', '\"' );
6275         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6276         if (uri) {
6277                 TALLOC_FREE(uri);
6278         }
6279
6280         if (!NT_STATUS_IS_OK(nt_status)) {
6281                 return nt_status;
6282         }
6283
6284         (*pdb_method)->name = "ldapsam";
6285
6286         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6287         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6288         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6289         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6290         (*pdb_method)->search_users = ldapsam_search_users;
6291         (*pdb_method)->search_groups = ldapsam_search_groups;
6292         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6293
6294         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6295                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6296                 (*pdb_method)->enum_group_memberships =
6297                         ldapsam_enum_group_memberships;
6298                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6299                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6300
6301                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6302                         (*pdb_method)->create_user = ldapsam_create_user;
6303                         (*pdb_method)->delete_user = ldapsam_delete_user;
6304                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6305                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6306                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6307                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6308                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6309                 }
6310         }
6311
6312         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6313         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6314
6315         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6316
6317         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6318                                                &result,
6319                                                ldap_state->domain_name, True);
6320
6321         if ( !NT_STATUS_IS_OK(nt_status) ) {
6322                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6323                           "info, nor add one to the domain\n"));
6324                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6325                              "will be unable to allocate new users/groups, "
6326                              "and will risk BDCs having inconsistant SIDs\n"));
6327                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6328                 return NT_STATUS_OK;
6329         }
6330
6331         /* Given that the above might fail, everything below this must be
6332          * optional */
6333
6334         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6335                                  result);
6336         if (!entry) {
6337                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6338                           "entry\n"));
6339                 ldap_msgfree(result);
6340                 return NT_STATUS_UNSUCCESSFUL;
6341         }
6342
6343         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
6344         if (!dn) {
6345                 ldap_msgfree(result);
6346                 return NT_STATUS_UNSUCCESSFUL;
6347         }
6348
6349         ldap_state->domain_dn = smb_xstrdup(dn);
6350         ldap_memfree(dn);
6351
6352         domain_sid_string = smbldap_talloc_single_attribute(
6353                     ldap_state->smbldap_state->ldap_struct,
6354                     entry,
6355                     get_userattr_key2string(ldap_state->schema_ver,
6356                                             LDAP_ATTR_USER_SID),
6357                     NULL);
6358
6359         if (domain_sid_string) {
6360                 bool found_sid;
6361                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6362                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6363                                   "read as a valid SID\n", domain_sid_string));
6364                         ldap_msgfree(result);
6365                         TALLOC_FREE(domain_sid_string);
6366                         return NT_STATUS_INVALID_PARAMETER;
6367                 }
6368                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6369                                                      &secrets_domain_sid);
6370                 if (!found_sid || !sid_equal(&secrets_domain_sid,
6371                                              &ldap_domain_sid)) {
6372                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6373                                   "%s based on pdb_ldap results %s -> %s\n",
6374                                   ldap_state->domain_name,
6375                                   sid_string_dbg(&secrets_domain_sid),
6376                                   sid_string_dbg(&ldap_domain_sid)));
6377
6378                         /* reset secrets.tdb sid */
6379                         secrets_store_domain_sid(ldap_state->domain_name,
6380                                                  &ldap_domain_sid);
6381                         DEBUG(1, ("New global sam SID: %s\n",
6382                                   sid_string_dbg(get_global_sam_sid())));
6383                 }
6384                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6385                 TALLOC_FREE(domain_sid_string);
6386         }
6387
6388         alg_rid_base_string = smbldap_talloc_single_attribute(
6389                     ldap_state->smbldap_state->ldap_struct,
6390                     entry,
6391                     get_attr_key2string( dominfo_attr_list,
6392                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6393                     NULL);
6394         if (alg_rid_base_string) {
6395                 alg_rid_base = (uint32)atol(alg_rid_base_string);
6396                 if (alg_rid_base != algorithmic_rid_base()) {
6397                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6398                                   "changed since the LDAP\n"
6399                                   "database was initialised.  Aborting. \n"));
6400                         ldap_msgfree(result);
6401                         TALLOC_FREE(alg_rid_base_string);
6402                         return NT_STATUS_UNSUCCESSFUL;
6403                 }
6404                 TALLOC_FREE(alg_rid_base_string);
6405         }
6406         ldap_msgfree(result);
6407
6408         return NT_STATUS_OK;
6409 }
6410
6411 NTSTATUS pdb_ldap_init(void)
6412 {
6413         NTSTATUS nt_status;
6414         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6415                 return nt_status;
6416
6417         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6418                 return nt_status;
6419
6420         /* Let pdb_nds register backends */
6421         pdb_nds_init();
6422
6423         return NT_STATUS_OK;
6424 }