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