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