source3/passdb/pdb_ldap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau        1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9    Copyright (C) Simo Sorce                     2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 */
  25
  26 /* TODO:
  27 *  persistent connections: if using NSS LDAP, many connections are made
  28 *      however, using only one within Samba would be nice
  29 *
  30 *  Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
  31 *
  32 *  Other LDAP based login attributes: accountExpires, etc.
  33 *  (should be the domain of Samba proper, but the sam_password/struct samu
  34 *  structures don't have fields for some of these attributes)
  35 *
  36 *  SSL is done, but can't get the certificate based authentication to work
  37 *  against on my test platform (Linux 2.4, OpenLDAP 2.x)
  38 */
  39
  40 /* NOTE: this will NOT work against an Active Directory server
  41 *  due to the fact that the two password fields cannot be retrieved
  42 *  from a server; recommend using security = domain in this situation
  43 *  and/or winbind
  44 */
  45
  46 #include "includes.h"
  47 #include "../libcli/auth/libcli_auth.h"
  48
  49 #undef DBGC_CLASS
  50 #define DBGC_CLASS DBGC_PASSDB
  51
  52 #include <lber.h>
  53 #include <ldap.h>
  54
  55 /*
  56  * Work around versions of the LDAP client libs that don't have the OIDs
  57  * defined, or have them defined under the old name.
  58  * This functionality is really a factor of the server, not the client
  59  *
  60  */
  61
  62 #if defined(LDAP_EXOP_X_MODIFY_PASSWD) && !defined(LDAP_EXOP_MODIFY_PASSWD)
  63 #define LDAP_EXOP_MODIFY_PASSWD LDAP_EXOP_X_MODIFY_PASSWD
  64 #elif !defined(LDAP_EXOP_MODIFY_PASSWD)
  65 #define LDAP_EXOP_MODIFY_PASSWD "1.3.6.1.4.1.4203.1.11.1"
  66 #endif
  67
  68 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_ID) && !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  69 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID LDAP_EXOP_X_MODIFY_PASSWD_ID
  70 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  71 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID        ((ber_tag_t) 0x80U)
  72 #endif
  73
  74 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_NEW) && !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  75 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW LDAP_EXOP_X_MODIFY_PASSWD_NEW
  76 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  77 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW       ((ber_tag_t) 0x82U)
  78 #endif
  79
  80
  81 #include "smbldap.h"
  82
  83 /**********************************************************************
  84  Simple helper function to make stuff better readable
  85  **********************************************************************/
  86
  87 static LDAP *priv2ld(struct ldapsam_privates *priv)
  88 {
  89         return priv->smbldap_state->ldap_struct;
  90 }
  91
  92 /**********************************************************************
  93  Get the attribute name given a user schame version.
  94  **********************************************************************/
  95
  96 static const char* get_userattr_key2string( int schema_ver, int key )
  97 {
  98         switch ( schema_ver ) {
  99                 case SCHEMAVER_SAMBAACCOUNT:
 100                         return get_attr_key2string( attrib_map_v22, key );
 101
 102                 case SCHEMAVER_SAMBASAMACCOUNT:
 103                         return get_attr_key2string( attrib_map_v30, key );
 104
 105                 default:
 106                         DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
 107                         break;
 108         }
 109         return NULL;
 110 }
 111
 112 /**********************************************************************
 113  Return the list of attribute names given a user schema version.
 114 **********************************************************************/
 115
 116 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
 117 {
 118         switch ( schema_ver ) {
 119                 case SCHEMAVER_SAMBAACCOUNT:
 120                         return get_attr_list( mem_ctx, attrib_map_v22 );
 121
 122                 case SCHEMAVER_SAMBASAMACCOUNT:
 123                         return get_attr_list( mem_ctx, attrib_map_v30 );
 124                 default:
 125                         DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
 126                         break;
 127         }
 128
 129         return NULL;
 130 }
 131
 132 /**************************************************************************
 133  Return the list of attribute names to delete given a user schema version.
 134 **************************************************************************/
 135
 136 static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
 137                                               int schema_ver )
 138 {
 139         switch ( schema_ver ) {
 140                 case SCHEMAVER_SAMBAACCOUNT:
 141                         return get_attr_list( mem_ctx,
 142                                               attrib_map_to_delete_v22 );
 143
 144                 case SCHEMAVER_SAMBASAMACCOUNT:
 145                         return get_attr_list( mem_ctx,
 146                                               attrib_map_to_delete_v30 );
 147                 default:
 148                         DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
 149                         break;
 150         }
 151
 152         return NULL;
 153 }
 154
 155
 156 /*******************************************************************
 157  Generate the LDAP search filter for the objectclass based on the
 158  version of the schema we are using.
 159 ******************************************************************/
 160
 161 static const char* get_objclass_filter( int schema_ver )
 162 {
 163         fstring objclass_filter;
 164         char *result;
 165
 166         switch( schema_ver ) {
 167                 case SCHEMAVER_SAMBAACCOUNT:
 168                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 169                         break;
 170                 case SCHEMAVER_SAMBASAMACCOUNT:
 171                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 172                         break;
 173                 default:
 174                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 175                         objclass_filter[0] = '\0';
 176                         break;
 177         }
 178
 179         result = talloc_strdup(talloc_tos(), objclass_filter);
 180         SMB_ASSERT(result != NULL);
 181         return result;
 182 }
 183
 184 /*****************************************************************
 185  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 186 ******************************************************************/
 187
 188 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 189 {
 190         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 191         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 192         LDAPMessage *msg = NULL;
 193         LDAPMessage *entry = NULL;
 194         TALLOC_CTX *mem_ctx;
 195         char **values = NULL;
 196         int rc, num_result, num_values, rid;
 197         char *suffix = NULL;
 198         char *tok;
 199         const char *p;
 200         const char **attrs;
 201
 202         /* Unfortunatly there is no proper way to detect syncrepl-support in
 203          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 204          * but do not show up in the root-DSE yet. Neither we can query the
 205          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 206          * objectclass. Currently we require lp_ldap_suffix() to show up as
 207          * namingContext.  -  Guenther
 208          */
 209
 210         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 211                 return ntstatus;
 212         }
 213
 214         if (!seq_num) {
 215                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 216                 return ntstatus;
 217         }
 218
 219         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 220                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 221                          "as top-level namingContext\n", lp_ldap_suffix()));
 222                 return ntstatus;
 223         }
 224
 225         mem_ctx = talloc_init("ldapsam_get_seq_num");
 226
 227         if (mem_ctx == NULL)
 228                 return NT_STATUS_NO_MEMORY;
 229
 230         if ((attrs = TALLOC_ARRAY(mem_ctx, const char *, 2)) == NULL) {
 231                 ntstatus = NT_STATUS_NO_MEMORY;
 232                 goto done;
 233         }
 234
 235         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 236         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 237         if (rid > 0) {
 238
 239                 /* consumer syncreplCookie: */
 240                 /* csn=20050126161620Z#0000001#00#00000 */
 241                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 242                 attrs[1] = NULL;
 243                 suffix = talloc_asprintf(mem_ctx,
 244                                 "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 245                 if (!suffix) {
 246                         ntstatus = NT_STATUS_NO_MEMORY;
 247                         goto done;
 248                 }
 249         } else {
 250
 251                 /* provider contextCSN */
 252                 /* 20050126161620Z#000009#00#000000 */
 253                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 254                 attrs[1] = NULL;
 255                 suffix = talloc_asprintf(mem_ctx,
 256                                 "cn=ldapsync,%s", lp_ldap_suffix());
 257
 258                 if (!suffix) {
 259                         ntstatus = NT_STATUS_NO_MEMORY;
 260                         goto done;
 261                 }
 262         }
 263
 264         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 265                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 266
 267         if (rc != LDAP_SUCCESS) {
 268                 goto done;
 269         }
 270
 271         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 272         if (num_result != 1) {
 273                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 274                 goto done;
 275         }
 276
 277         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 278         if (entry == NULL) {
 279                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 280                 goto done;
 281         }
 282
 283         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 284         if (values == NULL) {
 285                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 286                 goto done;
 287         }
 288
 289         num_values = ldap_count_values(values);
 290         if (num_values == 0) {
 291                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 292                 goto done;
 293         }
 294
 295         p = values[0];
 296         if (!next_token_talloc(mem_ctx, &p, &tok, "#")) {
 297                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 298                 goto done;
 299         }
 300
 301         p = tok;
 302         if (!strncmp(p, "csn=", strlen("csn=")))
 303                 p += strlen("csn=");
 304
 305         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 306
 307         *seq_num = generalized_to_unix_time(p);
 308
 309         /* very basic sanity check */
 310         if (*seq_num <= 0) {
 311                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 312                         (int)*seq_num));
 313                 goto done;
 314         }
 315
 316         ntstatus = NT_STATUS_OK;
 317
 318  done:
 319         if (values != NULL)
 320                 ldap_value_free(values);
 321         if (msg != NULL)
 322                 ldap_msgfree(msg);
 323         if (mem_ctx)
 324                 talloc_destroy(mem_ctx);
 325
 326         return ntstatus;
 327 }
 328
 329 /*******************************************************************
 330  Run the search by name.
 331 ******************************************************************/
 332
 333 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 334                                           const char *user,
 335                                           LDAPMessage ** result,
 336                                           const char **attr)
 337 {
 338         char *filter = NULL;
 339         char *escape_user = escape_ldap_string(talloc_tos(), user);
 340         int ret = -1;
 341
 342         if (!escape_user) {
 343                 return LDAP_NO_MEMORY;
 344         }
 345
 346         /*
 347          * in the filter expression, replace %u with the real name
 348          * so in ldap filter, %u MUST exist :-)
 349          */
 350         filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
 351                 get_objclass_filter(ldap_state->schema_ver));
 352         if (!filter) {
 353                 TALLOC_FREE(escape_user);
 354                 return LDAP_NO_MEMORY;
 355         }
 356         /*
 357          * have to use this here because $ is filtered out
 358          * in string_sub
 359          */
 360
 361         filter = talloc_all_string_sub(talloc_tos(),
 362                                 filter, "%u", escape_user);
 363         TALLOC_FREE(escape_user);
 364         if (!filter) {
 365                 return LDAP_NO_MEMORY;
 366         }
 367
 368         ret = smbldap_search_suffix(ldap_state->smbldap_state,
 369                         filter, attr, result);
 370         TALLOC_FREE(filter);
 371         return ret;
 372 }
 373
 374 /*******************************************************************
 375  Run the search by rid.
 376 ******************************************************************/
 377
 378 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 379                                          uint32 rid, LDAPMessage ** result,
 380                                          const char **attr)
 381 {
 382         char *filter = NULL;
 383         int rc;
 384
 385         filter = talloc_asprintf(talloc_tos(), "(&(rid=%i)%s)", rid,
 386                 get_objclass_filter(ldap_state->schema_ver));
 387         if (!filter) {
 388                 return LDAP_NO_MEMORY;
 389         }
 390
 391         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 392                         filter, attr, result);
 393         TALLOC_FREE(filter);
 394         return rc;
 395 }
 396
 397 /*******************************************************************
 398  Run the search by SID.
 399 ******************************************************************/
 400
 401 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 402                                  const DOM_SID *sid, LDAPMessage ** result,
 403                                  const char **attr)
 404 {
 405         char *filter = NULL;
 406         int rc;
 407         fstring sid_string;
 408
 409         filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
 410                 get_userattr_key2string(ldap_state->schema_ver,
 411                         LDAP_ATTR_USER_SID),
 412                 sid_to_fstring(sid_string, sid),
 413                 get_objclass_filter(ldap_state->schema_ver));
 414         if (!filter) {
 415                 return LDAP_NO_MEMORY;
 416         }
 417
 418         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 419                         filter, attr, result);
 420
 421         TALLOC_FREE(filter);
 422         return rc;
 423 }
 424
 425 /*******************************************************************
 426  Delete complete object or objectclass and attrs from
 427  object found in search_result depending on lp_ldap_delete_dn
 428 ******************************************************************/
 429
 430 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 431                                 TALLOC_CTX *mem_ctx,
 432                                 LDAPMessage *entry,
 433                                 const char *objectclass,
 434                                 const char **attrs)
 435 {
 436         LDAPMod **mods = NULL;
 437         char *name;
 438         const char *dn;
 439         BerElement *ptr = NULL;
 440
 441         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 442         if (dn == NULL) {
 443                 return LDAP_NO_MEMORY;
 444         }
 445
 446         if (lp_ldap_delete_dn()) {
 447                 return smbldap_delete(priv->smbldap_state, dn);
 448         }
 449
 450         /* Ok, delete only the SAM attributes */
 451
 452         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 453              name != NULL;
 454              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 455                 const char **attrib;
 456
 457                 /* We are only allowed to delete the attributes that
 458                    really exist. */
 459
 460                 for (attrib = attrs; *attrib != NULL; attrib++) {
 461                         if (strequal(*attrib, name)) {
 462                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 463                                            "attribute %s\n", name));
 464                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 465                                                 NULL);
 466                         }
 467                 }
 468                 ldap_memfree(name);
 469         }
 470
 471         if (ptr != NULL) {
 472                 ber_free(ptr, 0);
 473         }
 474
 475         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 476         talloc_autofree_ldapmod(mem_ctx, mods);
 477
 478         return smbldap_modify(priv->smbldap_state, dn, mods);
 479 }
 480
 481 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 482 {
 483         char *temp;
 484         struct tm tm;
 485
 486         temp = smbldap_talloc_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 487                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 488                         talloc_tos());
 489         if (!temp) {
 490                 return (time_t) 0;
 491         }
 492
 493         if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
 494                 DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
 495                         (char*)temp));
 496                 TALLOC_FREE(temp);
 497                 return (time_t) 0;
 498         }
 499         TALLOC_FREE(temp);
 500         tzset();
 501         return timegm(&tm);
 502 }
 503
 504 /**********************************************************************
 505  Initialize struct samu from an LDAP query.
 506  (Based on init_sam_from_buffer in pdb_tdb.c)
 507 *********************************************************************/
 508
 509 static bool init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 510                                 struct samu * sampass,
 511                                 LDAPMessage * entry)
 512 {
 513         time_t  logon_time,
 514                         logoff_time,
 515                         kickoff_time,
 516                         pass_last_set_time,
 517                         pass_can_change_time,
 518                         pass_must_change_time,
 519                         ldap_entry_time,
 520                         bad_password_time;
 521         char *username = NULL,
 522                         *domain = NULL,
 523                         *nt_username = NULL,
 524                         *fullname = NULL,
 525                         *homedir = NULL,
 526                         *dir_drive = NULL,
 527                         *logon_script = NULL,
 528                         *profile_path = NULL,
 529                         *acct_desc = NULL,
 530                         *workstations = NULL,
 531                         *munged_dial = NULL;
 532         uint32          user_rid;
 533         uint8           smblmpwd[LM_HASH_LEN],
 534                         smbntpwd[NT_HASH_LEN];
 535         bool            use_samba_attrs = True;
 536         uint32          acct_ctrl = 0;
 537         uint16          logon_divs;
 538         uint16          bad_password_count = 0,
 539                         logon_count = 0;
 540         uint32 hours_len;
 541         uint8           hours[MAX_HOURS_LEN];
 542         char *temp = NULL;
 543         LOGIN_CACHE     *cache_entry = NULL;
 544         uint32          pwHistLen;
 545         bool expand_explicit = lp_passdb_expand_explicit();
 546         bool ret = false;
 547         TALLOC_CTX *ctx = talloc_init("init_sam_from_ldap");
 548
 549         if (!ctx) {
 550                 return false;
 551         }
 552         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 553                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 554                 goto fn_exit;
 555         }
 556
 557         if (priv2ld(ldap_state) == NULL) {
 558                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 559                           "ldap_struct is NULL!\n"));
 560                 goto fn_exit;
 561         }
 562
 563         if (!(username = smbldap_talloc_smallest_attribute(priv2ld(ldap_state),
 564                                         entry,
 565                                         "uid",
 566                                         ctx))) {
 567                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 568                           "this user!\n"));
 569                 goto fn_exit;
 570         }
 571
 572         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 573
 574         nt_username = talloc_strdup(ctx, username);
 575         if (!nt_username) {
 576                 goto fn_exit;
 577         }
 578
 579         domain = talloc_strdup(ctx, ldap_state->domain_name);
 580         if (!domain) {
 581                 goto fn_exit;
 582         }
 583
 584         pdb_set_username(sampass, username, PDB_SET);
 585
 586         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 587         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 588
 589         /* deal with different attributes between the schema first */
 590
 591         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 592                 if ((temp = smbldap_talloc_single_attribute(
 593                                 ldap_state->smbldap_state->ldap_struct,
 594                                 entry,
 595                                 get_userattr_key2string(ldap_state->schema_ver,
 596                                         LDAP_ATTR_USER_SID),
 597                                 ctx))!=NULL) {
 598                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 599                 }
 600         } else {
 601                 if ((temp = smbldap_talloc_single_attribute(
 602                                 ldap_state->smbldap_state->ldap_struct,
 603                                 entry,
 604                                 get_userattr_key2string(ldap_state->schema_ver,
 605                                         LDAP_ATTR_USER_RID),
 606                                 ctx))!=NULL) {
 607                         user_rid = (uint32)atol(temp);
 608                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 609                 }
 610         }
 611
 612         if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
 613                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 614                         get_userattr_key2string(ldap_state->schema_ver,
 615                                 LDAP_ATTR_USER_SID),
 616                         get_userattr_key2string(ldap_state->schema_ver,
 617                                 LDAP_ATTR_USER_RID),
 618                         username));
 619                 return False;
 620         }
 621
 622         temp = smbldap_talloc_single_attribute(
 623                         ldap_state->smbldap_state->ldap_struct,
 624                         entry,
 625                         get_userattr_key2string(ldap_state->schema_ver,
 626                                 LDAP_ATTR_PWD_LAST_SET),
 627                         ctx);
 628         if (temp) {
 629                 pass_last_set_time = (time_t) atol(temp);
 630                 pdb_set_pass_last_set_time(sampass,
 631                                 pass_last_set_time, PDB_SET);
 632         }
 633
 634         temp = smbldap_talloc_single_attribute(
 635                         ldap_state->smbldap_state->ldap_struct,
 636                         entry,
 637                         get_userattr_key2string(ldap_state->schema_ver,
 638                                 LDAP_ATTR_LOGON_TIME),
 639                         ctx);
 640         if (temp) {
 641                 logon_time = (time_t) atol(temp);
 642                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 643         }
 644
 645         temp = smbldap_talloc_single_attribute(
 646                         ldap_state->smbldap_state->ldap_struct,
 647                         entry,
 648                         get_userattr_key2string(ldap_state->schema_ver,
 649                                 LDAP_ATTR_LOGOFF_TIME),
 650                         ctx);
 651         if (temp) {
 652                 logoff_time = (time_t) atol(temp);
 653                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 654         }
 655
 656         temp = smbldap_talloc_single_attribute(
 657                         ldap_state->smbldap_state->ldap_struct,
 658                         entry,
 659                         get_userattr_key2string(ldap_state->schema_ver,
 660                                 LDAP_ATTR_KICKOFF_TIME),
 661                         ctx);
 662         if (temp) {
 663                 kickoff_time = (time_t) atol(temp);
 664                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 665         }
 666
 667         temp = smbldap_talloc_single_attribute(
 668                         ldap_state->smbldap_state->ldap_struct,
 669                         entry,
 670                         get_userattr_key2string(ldap_state->schema_ver,
 671                                 LDAP_ATTR_PWD_CAN_CHANGE),
 672                         ctx);
 673         if (temp) {
 674                 pass_can_change_time = (time_t) atol(temp);
 675                 pdb_set_pass_can_change_time(sampass,
 676                                 pass_can_change_time, PDB_SET);
 677         }
 678
 679         temp = smbldap_talloc_single_attribute(
 680                         ldap_state->smbldap_state->ldap_struct,
 681                         entry,
 682                         get_userattr_key2string(ldap_state->schema_ver,
 683                                 LDAP_ATTR_PWD_MUST_CHANGE),
 684                         ctx);
 685         if (temp) {
 686                 pass_must_change_time = (time_t) atol(temp);
 687                 pdb_set_pass_must_change_time(sampass,
 688                                 pass_must_change_time, PDB_SET);
 689         }
 690
 691         /* recommend that 'gecos' and 'displayName' should refer to the same
 692          * attribute OID.  userFullName depreciated, only used by Samba
 693          * primary rules of LDAP: don't make a new attribute when one is already defined
 694          * that fits your needs; using cn then displayName rather than 'userFullName'
 695          */
 696
 697         fullname = smbldap_talloc_single_attribute(
 698                         ldap_state->smbldap_state->ldap_struct,
 699                         entry,
 700                         get_userattr_key2string(ldap_state->schema_ver,
 701                                 LDAP_ATTR_DISPLAY_NAME),
 702                         ctx);
 703         if (fullname) {
 704                 pdb_set_fullname(sampass, fullname, PDB_SET);
 705         } else {
 706                 fullname = smbldap_talloc_single_attribute(
 707                                 ldap_state->smbldap_state->ldap_struct,
 708                                 entry,
 709                                 get_userattr_key2string(ldap_state->schema_ver,
 710                                         LDAP_ATTR_CN),
 711                                 ctx);
 712                 if (fullname) {
 713                         pdb_set_fullname(sampass, fullname, PDB_SET);
 714                 }
 715         }
 716
 717         dir_drive = smbldap_talloc_single_attribute(
 718                         ldap_state->smbldap_state->ldap_struct,
 719                         entry,
 720                         get_userattr_key2string(ldap_state->schema_ver,
 721                                 LDAP_ATTR_HOME_DRIVE),
 722                         ctx);
 723         if (dir_drive) {
 724                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 725         } else {
 726                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 727         }
 728
 729         homedir = smbldap_talloc_single_attribute(
 730                         ldap_state->smbldap_state->ldap_struct,
 731                         entry,
 732                         get_userattr_key2string(ldap_state->schema_ver,
 733                                 LDAP_ATTR_HOME_PATH),
 734                         ctx);
 735         if (homedir) {
 736                 if (expand_explicit) {
 737                         homedir = talloc_sub_basic(ctx,
 738                                                 username,
 739                                                 domain,
 740                                                 homedir);
 741                         if (!homedir) {
 742                                 goto fn_exit;
 743                         }
 744                 }
 745                 pdb_set_homedir(sampass, homedir, PDB_SET);
 746         } else {
 747                 pdb_set_homedir(sampass,
 748                         talloc_sub_basic(ctx, username, domain,
 749                                          lp_logon_home()),
 750                         PDB_DEFAULT);
 751         }
 752
 753         logon_script = smbldap_talloc_single_attribute(
 754                         ldap_state->smbldap_state->ldap_struct,
 755                         entry,
 756                         get_userattr_key2string(ldap_state->schema_ver,
 757                                 LDAP_ATTR_LOGON_SCRIPT),
 758                         ctx);
 759         if (logon_script) {
 760                 if (expand_explicit) {
 761                         logon_script = talloc_sub_basic(ctx,
 762                                                 username,
 763                                                 domain,
 764                                                 logon_script);
 765                         if (!logon_script) {
 766                                 goto fn_exit;
 767                         }
 768                 }
 769                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
 770         } else {
 771                 pdb_set_logon_script(sampass,
 772                         talloc_sub_basic(ctx, username, domain,
 773                                          lp_logon_script()),
 774                         PDB_DEFAULT );
 775         }
 776
 777         profile_path = smbldap_talloc_single_attribute(
 778                         ldap_state->smbldap_state->ldap_struct,
 779                         entry,
 780                         get_userattr_key2string(ldap_state->schema_ver,
 781                                 LDAP_ATTR_PROFILE_PATH),
 782                         ctx);
 783         if (profile_path) {
 784                 if (expand_explicit) {
 785                         profile_path = talloc_sub_basic(ctx,
 786                                                 username,
 787                                                 domain,
 788                                                 profile_path);
 789                         if (!profile_path) {
 790                                 goto fn_exit;
 791                         }
 792                 }
 793                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
 794         } else {
 795                 pdb_set_profile_path(sampass,
 796                         talloc_sub_basic(ctx, username, domain,
 797                                           lp_logon_path()),
 798                         PDB_DEFAULT );
 799         }
 800
 801         acct_desc = smbldap_talloc_single_attribute(
 802                         ldap_state->smbldap_state->ldap_struct,
 803                         entry,
 804                         get_userattr_key2string(ldap_state->schema_ver,
 805                                 LDAP_ATTR_DESC),
 806                         ctx);
 807         if (acct_desc) {
 808                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 809         }
 810
 811         workstations = smbldap_talloc_single_attribute(
 812                         ldap_state->smbldap_state->ldap_struct,
 813                         entry,
 814                         get_userattr_key2string(ldap_state->schema_ver,
 815                                 LDAP_ATTR_USER_WKS),
 816                         ctx);
 817         if (workstations) {
 818                 pdb_set_workstations(sampass, workstations, PDB_SET);
 819         }
 820
 821         munged_dial = smbldap_talloc_single_attribute(
 822                         ldap_state->smbldap_state->ldap_struct,
 823                         entry,
 824                         get_userattr_key2string(ldap_state->schema_ver,
 825                                 LDAP_ATTR_MUNGED_DIAL),
 826                         ctx);
 827         if (munged_dial) {
 828                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 829         }
 830
 831         /* FIXME: hours stuff should be cleaner */
 832
 833         logon_divs = 168;
 834         hours_len = 21;
 835         memset(hours, 0xff, hours_len);
 836
 837         if (ldap_state->is_nds_ldap) {
 838                 char *user_dn;
 839                 size_t pwd_len;
 840                 char clear_text_pw[512];
 841
 842                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 843                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 844                 user_dn = smbldap_talloc_dn(ctx, ldap_state->smbldap_state->ldap_struct, entry);
 845                 if (user_dn != NULL) {
 846                         DEBUG(3, ("init_sam_from_ldap: smbldap_talloc_dn(ctx, %s) returned '%s'\n", username, user_dn));
 847
 848                         pwd_len = sizeof(clear_text_pw);
 849                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 850                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 851                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 852                                         TALLOC_FREE(user_dn);
 853                                         return False;
 854                                 }
 855                                 ZERO_STRUCT(smblmpwd);
 856                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 857                                         TALLOC_FREE(user_dn);
 858                                         return False;
 859                                 }
 860                                 ZERO_STRUCT(smbntpwd);
 861                                 use_samba_attrs = False;
 862                         }
 863
 864                         TALLOC_FREE(user_dn);
 865
 866                 } else {
 867                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 868                 }
 869         }
 870
 871         if (use_samba_attrs) {
 872                 temp = smbldap_talloc_single_attribute(
 873                                 ldap_state->smbldap_state->ldap_struct,
 874                                 entry,
 875                                 get_userattr_key2string(ldap_state->schema_ver,
 876                                         LDAP_ATTR_LMPW),
 877                                 ctx);
 878                 if (temp) {
 879                         pdb_gethexpwd(temp, smblmpwd);
 880                         memset((char *)temp, '\0', strlen(temp)+1);
 881                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 882                                 goto fn_exit;
 883                         }
 884                         ZERO_STRUCT(smblmpwd);
 885                 }
 886
 887                 temp = smbldap_talloc_single_attribute(
 888                                 ldap_state->smbldap_state->ldap_struct,
 889                                 entry,
 890                                 get_userattr_key2string(ldap_state->schema_ver,
 891                                         LDAP_ATTR_NTPW),
 892                                 ctx);
 893                 if (temp) {
 894                         pdb_gethexpwd(temp, smbntpwd);
 895                         memset((char *)temp, '\0', strlen(temp)+1);
 896                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 897                                 goto fn_exit;
 898                         }
 899                         ZERO_STRUCT(smbntpwd);
 900                 }
 901         }
 902
 903         pwHistLen = 0;
 904
 905         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
 906         if (pwHistLen > 0){
 907                 uint8 *pwhist = NULL;
 908                 int i;
 909                 char *history_string = TALLOC_ARRAY(ctx, char,
 910                                                 MAX_PW_HISTORY_LEN*64);
 911
 912                 if (!history_string) {
 913                         goto fn_exit;
 914                 }
 915
 916                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 917
 918                 if ((pwhist = TALLOC_ARRAY(ctx, uint8,
 919                                         pwHistLen * PW_HISTORY_ENTRY_LEN)) ==
 920                                 NULL){
 921                         DEBUG(0, ("init_sam_from_ldap: talloc failed!\n"));
 922                         goto fn_exit;
 923                 }
 924                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 925
 926                 if (smbldap_get_single_attribute(
 927                                 ldap_state->smbldap_state->ldap_struct,
 928                                 entry,
 929                                 get_userattr_key2string(ldap_state->schema_ver,
 930                                         LDAP_ATTR_PWD_HISTORY),
 931                                 history_string,
 932                                 MAX_PW_HISTORY_LEN*64)) {
 933                         bool hex_failed = false;
 934                         for (i = 0; i < pwHistLen; i++){
 935                                 /* Get the 16 byte salt. */
 936                                 if (!pdb_gethexpwd(&history_string[i*64],
 937                                         &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 938                                         hex_failed = true;
 939                                         break;
 940                                 }
 941                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 942                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 943                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+
 944                                                 PW_HISTORY_SALT_LEN])) {
 945                                         hex_failed = True;
 946                                         break;
 947                                 }
 948                         }
 949                         if (hex_failed) {
 950                                 DEBUG(2,("init_sam_from_ldap: Failed to get password history for user %s\n",
 951                                         username));
 952                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 953                         }
 954                 }
 955                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 956                         goto fn_exit;
 957                 }
 958         }
 959
 960         temp = smbldap_talloc_single_attribute(
 961                         ldap_state->smbldap_state->ldap_struct,
 962                         entry,
 963                         get_userattr_key2string(ldap_state->schema_ver,
 964                                 LDAP_ATTR_ACB_INFO),
 965                         ctx);
 966         if (temp) {
 967                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 968
 969                 if (acct_ctrl == 0) {
 970                         acct_ctrl |= ACB_NORMAL;
 971                 }
 972
 973                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 974         } else {
 975                 acct_ctrl |= ACB_NORMAL;
 976         }
 977
 978         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 979         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 980
 981         temp = smbldap_talloc_single_attribute(
 982                         ldap_state->smbldap_state->ldap_struct,
 983                         entry,
 984                         get_userattr_key2string(ldap_state->schema_ver,
 985                                 LDAP_ATTR_BAD_PASSWORD_COUNT),
 986                         ctx);
 987         if (temp) {
 988                 bad_password_count = (uint32) atol(temp);
 989                 pdb_set_bad_password_count(sampass,
 990                                 bad_password_count, PDB_SET);
 991         }
 992
 993         temp = smbldap_talloc_single_attribute(
 994                         ldap_state->smbldap_state->ldap_struct,
 995                         entry,
 996                         get_userattr_key2string(ldap_state->schema_ver,
 997                                 LDAP_ATTR_BAD_PASSWORD_TIME),
 998                         ctx);
 999         if (temp) {
1000                 bad_password_time = (time_t) atol(temp);
1001                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1002         }
1003
1004
1005         temp = smbldap_talloc_single_attribute(
1006                         ldap_state->smbldap_state->ldap_struct,
1007                         entry,
1008                         get_userattr_key2string(ldap_state->schema_ver,
1009                                 LDAP_ATTR_LOGON_COUNT),
1010                         ctx);
1011         if (temp) {
1012                 logon_count = (uint32) atol(temp);
1013                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1014         }
1015
1016         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
1017
1018         temp = smbldap_talloc_single_attribute(
1019                         ldap_state->smbldap_state->ldap_struct,
1020                         entry,
1021                         get_userattr_key2string(ldap_state->schema_ver,
1022                                 LDAP_ATTR_LOGON_HOURS),
1023                         ctx);
1024         if (temp) {
1025                 pdb_gethexhours(temp, hours);
1026                 memset((char *)temp, '\0', strlen(temp) +1);
1027                 pdb_set_hours(sampass, hours, PDB_SET);
1028                 ZERO_STRUCT(hours);
1029         }
1030
1031         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
1032                 temp = smbldap_talloc_single_attribute(
1033                                 priv2ld(ldap_state),
1034                                 entry,
1035                                 "uidNumber",
1036                                 ctx);
1037                 if (temp) {
1038                         /* We've got a uid, feed the cache */
1039                         uid_t uid = strtoul(temp, NULL, 10);
1040                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
1041                 }
1042         }
1043
1044         /* check the timestamp of the cache vs ldap entry */
1045         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
1046                                                             entry))) {
1047                 ret = true;
1048                 goto fn_exit;
1049         }
1050
1051         /* see if we have newer updates */
1052         if (!(cache_entry = login_cache_read(sampass))) {
1053                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
1054                            (unsigned int)pdb_get_bad_password_count(sampass),
1055                            (unsigned int)pdb_get_bad_password_time(sampass)));
1056                 ret = true;
1057                 goto fn_exit;
1058         }
1059
1060         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
1061                   (unsigned int)ldap_entry_time,
1062                   (unsigned int)cache_entry->entry_timestamp,
1063                   (unsigned int)cache_entry->bad_password_time));
1064
1065         if (ldap_entry_time > cache_entry->entry_timestamp) {
1066                 /* cache is older than directory , so
1067                    we need to delete the entry but allow the
1068                    fields to be written out */
1069                 login_cache_delentry(sampass);
1070         } else {
1071                 /* read cache in */
1072                 pdb_set_acct_ctrl(sampass,
1073                                   pdb_get_acct_ctrl(sampass) |
1074                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
1075                                   PDB_SET);
1076                 pdb_set_bad_password_count(sampass,
1077                                            cache_entry->bad_password_count,
1078                                            PDB_SET);
1079                 pdb_set_bad_password_time(sampass,
1080                                           cache_entry->bad_password_time,
1081                                           PDB_SET);
1082         }
1083
1084         ret = true;
1085
1086   fn_exit:
1087
1088         TALLOC_FREE(ctx);
1089         SAFE_FREE(cache_entry);
1090         return ret;
1091 }
1092
1093 /**********************************************************************
1094  Initialize the ldap db from a struct samu. Called on update.
1095  (Based on init_buffer_from_sam in pdb_tdb.c)
1096 *********************************************************************/
1097
1098 static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
1099                                 LDAPMessage *existing,
1100                                 LDAPMod *** mods, struct samu * sampass,
1101                                 bool (*need_update)(const struct samu *,
1102                                                     enum pdb_elements))
1103 {
1104         char *temp = NULL;
1105         uint32 rid;
1106
1107         if (mods == NULL || sampass == NULL) {
1108                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
1109                 return False;
1110         }
1111
1112         *mods = NULL;
1113
1114         /*
1115          * took out adding "objectclass: sambaAccount"
1116          * do this on a per-mod basis
1117          */
1118         if (need_update(sampass, PDB_USERNAME)) {
1119                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1120                               "uid", pdb_get_username(sampass));
1121                 if (ldap_state->is_nds_ldap) {
1122                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1123                                       "cn", pdb_get_username(sampass));
1124                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1125                                       "sn", pdb_get_username(sampass));
1126                 }
1127         }
1128
1129         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
1130
1131         /* only update the RID if we actually need to */
1132         if (need_update(sampass, PDB_USERSID)) {
1133                 fstring sid_string;
1134                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
1135
1136                 switch ( ldap_state->schema_ver ) {
1137                         case SCHEMAVER_SAMBAACCOUNT:
1138                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
1139                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1140                                                   sid_string_dbg(user_sid),
1141                                                   sid_string_dbg(
1142                                                           &ldap_state->domain_sid)));
1143                                         return False;
1144                                 }
1145                                 if (asprintf(&temp, "%i", rid) < 0) {
1146                                         return false;
1147                                 }
1148                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1149                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
1150                                         temp);
1151                                 SAFE_FREE(temp);
1152                                 break;
1153
1154                         case SCHEMAVER_SAMBASAMACCOUNT:
1155                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1156                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1157                                         sid_to_fstring(sid_string, user_sid));
1158                                 break;
1159
1160                         default:
1161                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1162                                 break;
1163                 }
1164         }
1165
1166         /* we don't need to store the primary group RID - so leaving it
1167            'free' to hang off the unix primary group makes life easier */
1168
1169         if (need_update(sampass, PDB_GROUPSID)) {
1170                 fstring sid_string;
1171                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1172
1173                 switch ( ldap_state->schema_ver ) {
1174                         case SCHEMAVER_SAMBAACCOUNT:
1175                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1176                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1177                                                   sid_string_dbg(group_sid),
1178                                                   sid_string_dbg(
1179                                                           &ldap_state->domain_sid)));
1180                                         return False;
1181                                 }
1182
1183                                 if (asprintf(&temp, "%i", rid) < 0) {
1184                                         return false;
1185                                 }
1186                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1187                                         get_userattr_key2string(ldap_state->schema_ver,
1188                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1189                                 SAFE_FREE(temp);
1190                                 break;
1191
1192                         case SCHEMAVER_SAMBASAMACCOUNT:
1193                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1194                                         get_userattr_key2string(ldap_state->schema_ver,
1195                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_fstring(sid_string, group_sid));
1196                                 break;
1197
1198                         default:
1199                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1200                                 break;
1201                 }
1202
1203         }
1204
1205         /* displayName, cn, and gecos should all be the same
1206          *  most easily accomplished by giving them the same OID
1207          *  gecos isn't set here b/c it should be handled by the
1208          *  add-user script
1209          *  We change displayName only and fall back to cn if
1210          *  it does not exist.
1211          */
1212
1213         if (need_update(sampass, PDB_FULLNAME))
1214                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1215                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1216                         pdb_get_fullname(sampass));
1217
1218         if (need_update(sampass, PDB_ACCTDESC))
1219                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1220                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1221                         pdb_get_acct_desc(sampass));
1222
1223         if (need_update(sampass, PDB_WORKSTATIONS))
1224                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1225                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1226                         pdb_get_workstations(sampass));
1227
1228         if (need_update(sampass, PDB_MUNGEDDIAL))
1229                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1230                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1231                         pdb_get_munged_dial(sampass));
1232
1233         if (need_update(sampass, PDB_SMBHOME))
1234                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1235                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1236                         pdb_get_homedir(sampass));
1237
1238         if (need_update(sampass, PDB_DRIVE))
1239                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1240                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1241                         pdb_get_dir_drive(sampass));
1242
1243         if (need_update(sampass, PDB_LOGONSCRIPT))
1244                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1245                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1246                         pdb_get_logon_script(sampass));
1247
1248         if (need_update(sampass, PDB_PROFILE))
1249                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1250                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1251                         pdb_get_profile_path(sampass));
1252
1253         if (asprintf(&temp, "%li", (long int)pdb_get_logon_time(sampass)) < 0) {
1254                 return false;
1255         }
1256         if (need_update(sampass, PDB_LOGONTIME))
1257                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1258                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1259         SAFE_FREE(temp);
1260
1261         if (asprintf(&temp, "%li", (long int)pdb_get_logoff_time(sampass)) < 0) {
1262                 return false;
1263         }
1264         if (need_update(sampass, PDB_LOGOFFTIME))
1265                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1266                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1267         SAFE_FREE(temp);
1268
1269         if (asprintf(&temp, "%li", (long int)pdb_get_kickoff_time(sampass)) < 0) {
1270                 return false;
1271         }
1272         if (need_update(sampass, PDB_KICKOFFTIME))
1273                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1274                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1275         SAFE_FREE(temp);
1276
1277         if (asprintf(&temp, "%li", (long int)pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
1278                 return false;
1279         }
1280         if (need_update(sampass, PDB_CANCHANGETIME))
1281                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1282                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1283         SAFE_FREE(temp);
1284
1285         if (asprintf(&temp, "%li", (long int)pdb_get_pass_must_change_time(sampass)) < 0) {
1286                 return false;
1287         }
1288         if (need_update(sampass, PDB_MUSTCHANGETIME))
1289                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1290                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1291         SAFE_FREE(temp);
1292
1293         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1294                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1295
1296                 if (need_update(sampass, PDB_LMPASSWD)) {
1297                         const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
1298                         if (lm_pw) {
1299                                 char pwstr[34];
1300                                 pdb_sethexpwd(pwstr, lm_pw,
1301                                               pdb_get_acct_ctrl(sampass));
1302                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1303                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1304                                                  pwstr);
1305                         } else {
1306                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1307                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1308                                                  NULL);
1309                         }
1310                 }
1311                 if (need_update(sampass, PDB_NTPASSWD)) {
1312                         const uchar *nt_pw = pdb_get_nt_passwd(sampass);
1313                         if (nt_pw) {
1314                                 char pwstr[34];
1315                                 pdb_sethexpwd(pwstr, nt_pw,
1316                                               pdb_get_acct_ctrl(sampass));
1317                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1318                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1319                                                  pwstr);
1320                         } else {
1321                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1322                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1323                                                  NULL);
1324                         }
1325                 }
1326
1327                 if (need_update(sampass, PDB_PWHISTORY)) {
1328                         char *pwstr = NULL;
1329                         uint32 pwHistLen = 0;
1330                         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1331
1332                         pwstr = SMB_MALLOC_ARRAY(char, 1024);
1333                         if (!pwstr) {
1334                                 return false;
1335                         }
1336                         if (pwHistLen == 0) {
1337                                 /* Remove any password history from the LDAP store. */
1338                                 memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1339                                 pwstr[64] = '\0';
1340                         } else {
1341                                 int i;
1342                                 uint32 currHistLen = 0;
1343                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1344                                 if (pwhist != NULL) {
1345                                         /* We can only store (1024-1/64 password history entries. */
1346                                         pwHistLen = MIN(pwHistLen, ((1024-1)/64));
1347                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1348                                                 /* Store the salt. */
1349                                                 pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1350                                                 /* Followed by the md5 hash of salt + md4 hash */
1351                                                 pdb_sethexpwd(&pwstr[(i*64)+32],
1352                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1353                                                 DEBUG(100, ("pwstr=%s\n", pwstr));
1354                                         }
1355                                 }
1356                         }
1357                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1358                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1359                                          pwstr);
1360                         SAFE_FREE(pwstr);
1361                 }
1362
1363                 if (need_update(sampass, PDB_PASSLASTSET)) {
1364                         if (asprintf(&temp, "%li",
1365                                 (long int)pdb_get_pass_last_set_time(sampass)) < 0) {
1366                                 return false;
1367                         }
1368                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1369                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1370                                 temp);
1371                         SAFE_FREE(temp);
1372                 }
1373         }
1374
1375         if (need_update(sampass, PDB_HOURS)) {
1376                 const uint8 *hours = pdb_get_hours(sampass);
1377                 if (hours) {
1378                         char hourstr[44];
1379                         pdb_sethexhours(hourstr, hours);
1380                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1381                                 existing,
1382                                 mods,
1383                                 get_userattr_key2string(ldap_state->schema_ver,
1384                                                 LDAP_ATTR_LOGON_HOURS),
1385                                 hourstr);
1386                 }
1387         }
1388
1389         if (need_update(sampass, PDB_ACCTCTRL))
1390                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1391                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1392                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1393
1394         /* password lockout cache:
1395            - If we are now autolocking or clearing, we write to ldap
1396            - If we are clearing, we delete the cache entry
1397            - If the count is > 0, we update the cache
1398
1399            This even means when autolocking, we cache, just in case the
1400            update doesn't work, and we have to cache the autolock flag */
1401
1402         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1403             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1404                 uint16 badcount = pdb_get_bad_password_count(sampass);
1405                 time_t badtime = pdb_get_bad_password_time(sampass);
1406                 uint32 pol;
1407                 pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &pol);
1408
1409                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1410                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1411
1412                 if ((badcount >= pol) || (badcount == 0)) {
1413                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1414                                 (unsigned int)badcount, (unsigned int)badtime));
1415                         if (asprintf(&temp, "%li", (long)badcount) < 0) {
1416                                 return false;
1417                         }
1418                         smbldap_make_mod(
1419                                 ldap_state->smbldap_state->ldap_struct,
1420                                 existing, mods,
1421                                 get_userattr_key2string(
1422                                         ldap_state->schema_ver,
1423                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1424                                 temp);
1425                         SAFE_FREE(temp);
1426
1427                         if (asprintf(&temp, "%li", (long int)badtime) < 0) {
1428                                 return false;
1429                         }
1430                         smbldap_make_mod(
1431                                 ldap_state->smbldap_state->ldap_struct,
1432                                 existing, mods,
1433                                 get_userattr_key2string(
1434                                         ldap_state->schema_ver,
1435                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1436                                 temp);
1437                         SAFE_FREE(temp);
1438                 }
1439                 if (badcount == 0) {
1440                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1441                         login_cache_delentry(sampass);
1442                 } else {
1443                         LOGIN_CACHE cache_entry;
1444
1445                         cache_entry.entry_timestamp = time(NULL);
1446                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1447                         cache_entry.bad_password_count = badcount;
1448                         cache_entry.bad_password_time = badtime;
1449
1450                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1451                         login_cache_write(sampass, cache_entry);
1452                 }
1453         }
1454
1455         return True;
1456 }
1457
1458 /**********************************************************************
1459  End enumeration of the LDAP password list.
1460 *********************************************************************/
1461
1462 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1463 {
1464         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1465         if (ldap_state->result) {
1466                 ldap_msgfree(ldap_state->result);
1467                 ldap_state->result = NULL;
1468         }
1469 }
1470
1471 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1472                         const char *new_attr)
1473 {
1474         int i;
1475
1476         if (new_attr == NULL) {
1477                 return;
1478         }
1479
1480         for (i=0; (*attr_list)[i] != NULL; i++) {
1481                 ;
1482         }
1483
1484         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1485                                             const char *,  i+2);
1486         SMB_ASSERT((*attr_list) != NULL);
1487         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1488         (*attr_list)[i+1] = NULL;
1489 }
1490
1491 /**********************************************************************
1492 Get struct samu entry from LDAP by username.
1493 *********************************************************************/
1494
1495 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1496 {
1497         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1498         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1499         LDAPMessage *result = NULL;
1500         LDAPMessage *entry = NULL;
1501         int count;
1502         const char ** attr_list;
1503         int rc;
1504
1505         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1506         append_attr(user, &attr_list,
1507                     get_userattr_key2string(ldap_state->schema_ver,
1508                                             LDAP_ATTR_MOD_TIMESTAMP));
1509         append_attr(user, &attr_list, "uidNumber");
1510         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1511                                            attr_list);
1512         TALLOC_FREE( attr_list );
1513
1514         if ( rc != LDAP_SUCCESS )
1515                 return NT_STATUS_NO_SUCH_USER;
1516
1517         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1518
1519         if (count < 1) {
1520                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1521                 ldap_msgfree(result);
1522                 return NT_STATUS_NO_SUCH_USER;
1523         } else if (count > 1) {
1524                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1525                 ldap_msgfree(result);
1526                 return NT_STATUS_NO_SUCH_USER;
1527         }
1528
1529         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1530         if (entry) {
1531                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1532                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1533                         ldap_msgfree(result);
1534                         return NT_STATUS_NO_SUCH_USER;
1535                 }
1536                 pdb_set_backend_private_data(user, result, NULL,
1537                                              my_methods, PDB_CHANGED);
1538                 talloc_autofree_ldapmsg(user, result);
1539                 ret = NT_STATUS_OK;
1540         } else {
1541                 ldap_msgfree(result);
1542         }
1543         return ret;
1544 }
1545
1546 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1547                                    const DOM_SID *sid, LDAPMessage **result)
1548 {
1549         int rc = -1;
1550         const char ** attr_list;
1551         uint32 rid;
1552
1553         switch ( ldap_state->schema_ver ) {
1554                 case SCHEMAVER_SAMBASAMACCOUNT: {
1555                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1556                         if (tmp_ctx == NULL) {
1557                                 return LDAP_NO_MEMORY;
1558                         }
1559
1560                         attr_list = get_userattr_list(tmp_ctx,
1561                                                       ldap_state->schema_ver);
1562                         append_attr(tmp_ctx, &attr_list,
1563                                     get_userattr_key2string(
1564                                             ldap_state->schema_ver,
1565                                             LDAP_ATTR_MOD_TIMESTAMP));
1566                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1567                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1568                                                           result, attr_list);
1569                         TALLOC_FREE(tmp_ctx);
1570
1571                         if ( rc != LDAP_SUCCESS )
1572                                 return rc;
1573                         break;
1574                 }
1575
1576                 case SCHEMAVER_SAMBAACCOUNT:
1577                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1578                                 return rc;
1579                         }
1580
1581                         attr_list = get_userattr_list(NULL,
1582                                                       ldap_state->schema_ver);
1583                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1584                         TALLOC_FREE( attr_list );
1585
1586                         if ( rc != LDAP_SUCCESS )
1587                                 return rc;
1588                         break;
1589         }
1590         return rc;
1591 }
1592
1593 /**********************************************************************
1594  Get struct samu entry from LDAP by SID.
1595 *********************************************************************/
1596
1597 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1598 {
1599         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1600         LDAPMessage *result = NULL;
1601         LDAPMessage *entry = NULL;
1602         int count;
1603         int rc;
1604
1605         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1606                                           sid, &result);
1607         if (rc != LDAP_SUCCESS)
1608                 return NT_STATUS_NO_SUCH_USER;
1609
1610         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1611
1612         if (count < 1) {
1613                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
1614                           "count=%d\n", sid_string_dbg(sid), count));
1615                 ldap_msgfree(result);
1616                 return NT_STATUS_NO_SUCH_USER;
1617         }  else if (count > 1) {
1618                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
1619                           "[%s]. Failing. count=%d\n", sid_string_dbg(sid),
1620                           count));
1621                 ldap_msgfree(result);
1622                 return NT_STATUS_NO_SUCH_USER;
1623         }
1624
1625         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1626         if (!entry) {
1627                 ldap_msgfree(result);
1628                 return NT_STATUS_NO_SUCH_USER;
1629         }
1630
1631         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1632                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1633                 ldap_msgfree(result);
1634                 return NT_STATUS_NO_SUCH_USER;
1635         }
1636
1637         pdb_set_backend_private_data(user, result, NULL,
1638                                      my_methods, PDB_CHANGED);
1639         talloc_autofree_ldapmsg(user, result);
1640         return NT_STATUS_OK;
1641 }
1642
1643 /********************************************************************
1644  Do the actual modification - also change a plaintext passord if
1645  it it set.
1646 **********************************************************************/
1647
1648 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1649                                      struct samu *newpwd, char *dn,
1650                                      LDAPMod **mods, int ldap_op,
1651                                      bool (*need_update)(const struct samu *, enum pdb_elements))
1652 {
1653         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1654         int rc;
1655
1656         if (!newpwd || !dn) {
1657                 return NT_STATUS_INVALID_PARAMETER;
1658         }
1659
1660         if (!mods) {
1661                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1662                 /* may be password change below however */
1663         } else {
1664                 switch(ldap_op) {
1665                         case LDAP_MOD_ADD:
1666                                 if (ldap_state->is_nds_ldap) {
1667                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1668                                                         "objectclass",
1669                                                         "inetOrgPerson");
1670                                 } else {
1671                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1672                                                         "objectclass",
1673                                                         LDAP_OBJ_ACCOUNT);
1674                                 }
1675                                 rc = smbldap_add(ldap_state->smbldap_state,
1676                                                  dn, mods);
1677                                 break;
1678                         case LDAP_MOD_REPLACE:
1679                                 rc = smbldap_modify(ldap_state->smbldap_state,
1680                                                     dn ,mods);
1681                                 break;
1682                         default:
1683                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1684                                          ldap_op));
1685                                 return NT_STATUS_INVALID_PARAMETER;
1686                 }
1687
1688                 if (rc!=LDAP_SUCCESS) {
1689                         return NT_STATUS_UNSUCCESSFUL;
1690                 }
1691         }
1692
1693         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1694                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1695                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1696                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1697                 BerElement *ber;
1698                 struct berval *bv;
1699                 char *retoid = NULL;
1700                 struct berval *retdata = NULL;
1701                 char *utf8_password;
1702                 char *utf8_dn;
1703                 size_t converted_size;
1704                 int ret;
1705
1706                 if (!ldap_state->is_nds_ldap) {
1707
1708                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1709                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1710                                 DEBUG(2, ("ldap password change requested, but LDAP "
1711                                           "server does not support it -- ignoring\n"));
1712                                 return NT_STATUS_OK;
1713                         }
1714                 }
1715
1716                 if (!push_utf8_talloc(talloc_tos(), &utf8_password,
1717                                         pdb_get_plaintext_passwd(newpwd),
1718                                         &converted_size))
1719                 {
1720                         return NT_STATUS_NO_MEMORY;
1721                 }
1722
1723                 if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
1724                         TALLOC_FREE(utf8_password);
1725                         return NT_STATUS_NO_MEMORY;
1726                 }
1727
1728                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1729                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1730                         TALLOC_FREE(utf8_password);
1731                         TALLOC_FREE(utf8_dn);
1732                         return NT_STATUS_UNSUCCESSFUL;
1733                 }
1734
1735                 if ((ber_printf (ber, "{") < 0) ||
1736                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID,
1737                                  utf8_dn) < 0)) {
1738                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1739                                  "value <0\n"));
1740                         ber_free(ber,1);
1741                         TALLOC_FREE(utf8_dn);
1742                         TALLOC_FREE(utf8_password);
1743                         return NT_STATUS_UNSUCCESSFUL;
1744                 }
1745
1746                 if ((utf8_password != NULL) && (*utf8_password != '\0')) {
1747                         ret = ber_printf(ber, "ts}",
1748                                          LDAP_TAG_EXOP_MODIFY_PASSWD_NEW,
1749                                          utf8_password);
1750                 } else {
1751                         ret = ber_printf(ber, "}");
1752                 }
1753
1754                 if (ret < 0) {
1755                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1756                                  "value <0\n"));
1757                         ber_free(ber,1);
1758                         TALLOC_FREE(utf8_dn);
1759                         TALLOC_FREE(utf8_password);
1760                         return NT_STATUS_UNSUCCESSFUL;
1761                 }
1762
1763                 if ((rc = ber_flatten (ber, &bv))<0) {
1764                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1765                         ber_free(ber,1);
1766                         TALLOC_FREE(utf8_dn);
1767                         TALLOC_FREE(utf8_password);
1768                         return NT_STATUS_UNSUCCESSFUL;
1769                 }
1770
1771                 TALLOC_FREE(utf8_dn);
1772                 TALLOC_FREE(utf8_password);
1773                 ber_free(ber, 1);
1774
1775                 if (!ldap_state->is_nds_ldap) {
1776                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1777                                                         LDAP_EXOP_MODIFY_PASSWD,
1778                                                         bv, NULL, NULL, &retoid,
1779                                                         &retdata);
1780                 } else {
1781                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1782                                                         pdb_get_plaintext_passwd(newpwd));
1783                 }
1784                 if (rc != LDAP_SUCCESS) {
1785                         char *ld_error = NULL;
1786
1787                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1788                                 DEBUG(3, ("Could not set userPassword "
1789                                           "attribute due to an objectClass "
1790                                           "violation -- ignoring\n"));
1791                                 ber_bvfree(bv);
1792                                 return NT_STATUS_OK;
1793                         }
1794
1795                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1796                                         &ld_error);
1797                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1798                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1799                         SAFE_FREE(ld_error);
1800                         ber_bvfree(bv);
1801 #if defined(LDAP_CONSTRAINT_VIOLATION)
1802                         if (rc == LDAP_CONSTRAINT_VIOLATION)
1803                                 return NT_STATUS_PASSWORD_RESTRICTION;
1804 #endif
1805                         return NT_STATUS_UNSUCCESSFUL;
1806                 } else {
1807                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1808 #ifdef DEBUG_PASSWORD
1809                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1810 #endif
1811                         if (retdata)
1812                                 ber_bvfree(retdata);
1813                         if (retoid)
1814                                 ldap_memfree(retoid);
1815                 }
1816                 ber_bvfree(bv);
1817         }
1818         return NT_STATUS_OK;
1819 }
1820
1821 /**********************************************************************
1822  Delete entry from LDAP for username.
1823 *********************************************************************/
1824
1825 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1826                                            struct samu * sam_acct)
1827 {
1828         struct ldapsam_privates *priv =
1829                 (struct ldapsam_privates *)my_methods->private_data;
1830         const char *sname;
1831         int rc;
1832         LDAPMessage *msg, *entry;
1833         NTSTATUS result = NT_STATUS_NO_MEMORY;
1834         const char **attr_list;
1835         TALLOC_CTX *mem_ctx;
1836
1837         if (!sam_acct) {
1838                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1839                 return NT_STATUS_INVALID_PARAMETER;
1840         }
1841
1842         sname = pdb_get_username(sam_acct);
1843
1844         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1845                   "LDAP.\n", sname));
1846
1847         mem_ctx = talloc_new(NULL);
1848         if (mem_ctx == NULL) {
1849                 DEBUG(0, ("talloc_new failed\n"));
1850                 goto done;
1851         }
1852
1853         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1854         if (attr_list == NULL) {
1855                 goto done;
1856         }
1857
1858         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1859
1860         if ((rc != LDAP_SUCCESS) ||
1861             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1862             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1863                 DEBUG(5, ("Could not find user %s\n", sname));
1864                 result = NT_STATUS_NO_SUCH_USER;
1865                 goto done;
1866         }
1867
1868         rc = ldapsam_delete_entry(
1869                 priv, mem_ctx, entry,
1870                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1871                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1872                 attr_list);
1873
1874         result = (rc == LDAP_SUCCESS) ?
1875                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1876
1877  done:
1878         TALLOC_FREE(mem_ctx);
1879         return result;
1880 }
1881
1882 /**********************************************************************
1883  Helper function to determine for update_sam_account whether
1884  we need LDAP modification.
1885 *********************************************************************/
1886
1887 static bool element_is_changed(const struct samu *sampass,
1888                                enum pdb_elements element)
1889 {
1890         return IS_SAM_CHANGED(sampass, element);
1891 }
1892
1893 /**********************************************************************
1894  Update struct samu.
1895 *********************************************************************/
1896
1897 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1898 {
1899         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1900         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1901         int rc = 0;
1902         char *dn;
1903         LDAPMessage *result = NULL;
1904         LDAPMessage *entry = NULL;
1905         LDAPMod **mods = NULL;
1906         const char **attr_list;
1907
1908         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1909         if (!result) {
1910                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1911                 if (pdb_get_username(newpwd) == NULL) {
1912                         return NT_STATUS_INVALID_PARAMETER;
1913                 }
1914                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1915                 TALLOC_FREE( attr_list );
1916                 if (rc != LDAP_SUCCESS) {
1917                         return NT_STATUS_UNSUCCESSFUL;
1918                 }
1919                 pdb_set_backend_private_data(newpwd, result, NULL,
1920                                              my_methods, PDB_CHANGED);
1921                 talloc_autofree_ldapmsg(newpwd, result);
1922         }
1923
1924         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1925                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1926                 return NT_STATUS_UNSUCCESSFUL;
1927         }
1928
1929         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1930         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
1931         if (!dn) {
1932                 return NT_STATUS_UNSUCCESSFUL;
1933         }
1934
1935         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1936
1937         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
1938                                 element_is_changed)) {
1939                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
1940                 TALLOC_FREE(dn);
1941                 if (mods != NULL)
1942                         ldap_mods_free(mods,True);
1943                 return NT_STATUS_UNSUCCESSFUL;
1944         }
1945
1946         if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
1947             && (mods == NULL)) {
1948                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
1949                          pdb_get_username(newpwd)));
1950                 TALLOC_FREE(dn);
1951                 return NT_STATUS_OK;
1952         }
1953
1954         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
1955
1956         if (mods != NULL) {
1957                 ldap_mods_free(mods,True);
1958         }
1959
1960         TALLOC_FREE(dn);
1961
1962         /*
1963          * We need to set the backend private data to NULL here. For example
1964          * setuserinfo level 25 does a pdb_update_sam_account twice on the
1965          * same one, and with the explicit delete / add logic for attribute
1966          * values the second time we would use the wrong "old" value which
1967          * does not exist in LDAP anymore. Thus the LDAP server would refuse
1968          * the update.
1969          * The existing LDAPMessage is still being auto-freed by the
1970          * destructor.
1971          */
1972         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
1973                                      PDB_CHANGED);
1974
1975         if (!NT_STATUS_IS_OK(ret)) {
1976                 return ret;
1977         }
1978
1979         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1980                   pdb_get_username(newpwd)));
1981         return NT_STATUS_OK;
1982 }
1983
1984 /***************************************************************************
1985  Renames a struct samu
1986  - The "rename user script" has full responsibility for changing everything
1987 ***************************************************************************/
1988
1989 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
1990                                      TALLOC_CTX *tmp_ctx,
1991                                      uint32 group_rid,
1992                                      uint32 member_rid);
1993
1994 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
1995                                                TALLOC_CTX *mem_ctx,
1996                                                struct samu *user,
1997                                                DOM_SID **pp_sids,
1998                                                gid_t **pp_gids,
1999                                                size_t *p_num_groups);
2000
2001 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
2002                                            struct samu *old_acct,
2003                                            const char *newname)
2004 {
2005         const char *oldname;
2006         int rc;
2007         char *rename_script = NULL;
2008         fstring oldname_lower, newname_lower;
2009
2010         if (!old_acct) {
2011                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
2012                 return NT_STATUS_INVALID_PARAMETER;
2013         }
2014         if (!newname) {
2015                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
2016                 return NT_STATUS_INVALID_PARAMETER;
2017         }
2018
2019         oldname = pdb_get_username(old_acct);
2020
2021         /* rename the posix user */
2022         rename_script = SMB_STRDUP(lp_renameuser_script());
2023         if (rename_script == NULL) {
2024                 return NT_STATUS_NO_MEMORY;
2025         }
2026
2027         if (!(*rename_script)) {
2028                 SAFE_FREE(rename_script);
2029                 return NT_STATUS_ACCESS_DENIED;
2030         }
2031
2032         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
2033                    oldname, newname));
2034
2035         /* We have to allow the account name to end with a '$'.
2036            Also, follow the semantics in _samr_create_user() and lower case the
2037            posix name but preserve the case in passdb */
2038
2039         fstrcpy( oldname_lower, oldname );
2040         strlower_m( oldname_lower );
2041         fstrcpy( newname_lower, newname );
2042         strlower_m( newname_lower );
2043         rename_script = realloc_string_sub2(rename_script,
2044                                         "%unew",
2045                                         newname_lower,
2046                                         true,
2047                                         true);
2048         if (!rename_script) {
2049                 return NT_STATUS_NO_MEMORY;
2050         }
2051         rename_script = realloc_string_sub2(rename_script,
2052                                         "%uold",
2053                                         oldname_lower,
2054                                         true,
2055                                         true);
2056         rc = smbrun(rename_script, NULL);
2057
2058         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2059                           rename_script, rc));
2060
2061         SAFE_FREE(rename_script);
2062
2063         if (rc == 0) {
2064                 smb_nscd_flush_user_cache();
2065         }
2066
2067         if (rc)
2068                 return NT_STATUS_UNSUCCESSFUL;
2069
2070         return NT_STATUS_OK;
2071 }
2072
2073 /**********************************************************************
2074  Helper function to determine for update_sam_account whether
2075  we need LDAP modification.
2076  *********************************************************************/
2077
2078 static bool element_is_set_or_changed(const struct samu *sampass,
2079                                       enum pdb_elements element)
2080 {
2081         return (IS_SAM_SET(sampass, element) ||
2082                 IS_SAM_CHANGED(sampass, element));
2083 }
2084
2085 /**********************************************************************
2086  Add struct samu to LDAP.
2087 *********************************************************************/
2088
2089 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2090 {
2091         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2092         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2093         int rc;
2094         LDAPMessage     *result = NULL;
2095         LDAPMessage     *entry  = NULL;
2096         LDAPMod         **mods = NULL;
2097         int             ldap_op = LDAP_MOD_REPLACE;
2098         uint32          num_result;
2099         const char      **attr_list;
2100         char *escape_user = NULL;
2101         const char      *username = pdb_get_username(newpwd);
2102         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
2103         char *filter = NULL;
2104         char *dn = NULL;
2105         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2106         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2107
2108         if (!ctx) {
2109                 return NT_STATUS_NO_MEMORY;
2110         }
2111
2112         if (!username || !*username) {
2113                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2114                 status = NT_STATUS_INVALID_PARAMETER;
2115                 goto fn_exit;
2116         }
2117
2118         /* free this list after the second search or in case we exit on failure */
2119         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2120
2121         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2122
2123         if (rc != LDAP_SUCCESS) {
2124                 goto fn_exit;
2125         }
2126
2127         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2128                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2129                          username));
2130                 goto fn_exit;
2131         }
2132         ldap_msgfree(result);
2133         result = NULL;
2134
2135         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2136                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2137                                                   sid, &result);
2138                 if (rc == LDAP_SUCCESS) {
2139                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2140                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2141                                          "already in the base, with samba "
2142                                          "attributes\n", sid_string_dbg(sid)));
2143                                 goto fn_exit;
2144                         }
2145                         ldap_msgfree(result);
2146                         result = NULL;
2147                 }
2148         }
2149
2150         /* does the entry already exist but without a samba attributes?
2151            we need to return the samba attributes here */
2152
2153         escape_user = escape_ldap_string(talloc_tos(), username);
2154         filter = talloc_strdup(attr_list, "(uid=%u)");
2155         if (!filter) {
2156                 status = NT_STATUS_NO_MEMORY;
2157                 goto fn_exit;
2158         }
2159         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2160         TALLOC_FREE(escape_user);
2161         if (!filter) {
2162                 status = NT_STATUS_NO_MEMORY;
2163                 goto fn_exit;
2164         }
2165
2166         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2167                                    filter, attr_list, &result);
2168         if ( rc != LDAP_SUCCESS ) {
2169                 goto fn_exit;
2170         }
2171
2172         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2173
2174         if (num_result > 1) {
2175                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2176                 goto fn_exit;
2177         }
2178
2179         /* Check if we need to update an existing entry */
2180         if (num_result == 1) {
2181                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2182                 ldap_op = LDAP_MOD_REPLACE;
2183                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2184                 dn = smbldap_talloc_dn(ctx, ldap_state->smbldap_state->ldap_struct, entry);
2185                 if (!dn) {
2186                         status = NT_STATUS_NO_MEMORY;
2187                         goto fn_exit;
2188                 }
2189
2190         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2191
2192                 /* There might be a SID for this account already - say an idmap entry */
2193
2194                 filter = talloc_asprintf(ctx,
2195                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2196                                  get_userattr_key2string(ldap_state->schema_ver,
2197                                          LDAP_ATTR_USER_SID),
2198                                  sid_string_talloc(ctx, sid),
2199                                  LDAP_OBJ_IDMAP_ENTRY,
2200                                  LDAP_OBJ_SID_ENTRY);
2201                 if (!filter) {
2202                         status = NT_STATUS_NO_MEMORY;
2203                         goto fn_exit;
2204                 }
2205
2206                 /* free old result before doing a new search */
2207                 if (result != NULL) {
2208                         ldap_msgfree(result);
2209                         result = NULL;
2210                 }
2211                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2212                                            filter, attr_list, &result);
2213
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 specified Sid 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
2228                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2229                         ldap_op = LDAP_MOD_REPLACE;
2230                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2231                         dn = smbldap_talloc_dn (ctx, ldap_state->smbldap_state->ldap_struct, entry);
2232                         if (!dn) {
2233                                 status = NT_STATUS_NO_MEMORY;
2234                                 goto fn_exit;
2235                         }
2236                 }
2237         }
2238
2239         if (num_result == 0) {
2240                 char *escape_username;
2241                 /* Check if we need to add an entry */
2242                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2243                 ldap_op = LDAP_MOD_ADD;
2244
2245                 escape_username = escape_rdn_val_string_alloc(username);
2246                 if (!escape_username) {
2247                         status = NT_STATUS_NO_MEMORY;
2248                         goto fn_exit;
2249                 }
2250
2251                 if (username[strlen(username)-1] == '$') {
2252                         dn = talloc_asprintf(ctx,
2253                                         "uid=%s,%s",
2254                                         escape_username,
2255                                         lp_ldap_machine_suffix());
2256                 } else {
2257                         dn = talloc_asprintf(ctx,
2258                                         "uid=%s,%s",
2259                                         escape_username,
2260                                         lp_ldap_user_suffix());
2261                 }
2262
2263                 SAFE_FREE(escape_username);
2264                 if (!dn) {
2265                         status = NT_STATUS_NO_MEMORY;
2266                         goto fn_exit;
2267                 }
2268         }
2269
2270         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2271                                 element_is_set_or_changed)) {
2272                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2273                 if (mods != NULL) {
2274                         ldap_mods_free(mods, true);
2275                 }
2276                 goto fn_exit;
2277         }
2278
2279         if (mods == NULL) {
2280                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2281                 goto fn_exit;
2282         }
2283         switch ( ldap_state->schema_ver ) {
2284                 case SCHEMAVER_SAMBAACCOUNT:
2285                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2286                         break;
2287                 case SCHEMAVER_SAMBASAMACCOUNT:
2288                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2289                         break;
2290                 default:
2291                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2292                         break;
2293         }
2294
2295         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2296         if (!NT_STATUS_IS_OK(ret)) {
2297                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2298                          pdb_get_username(newpwd),dn));
2299                 ldap_mods_free(mods, true);
2300                 goto fn_exit;
2301         }
2302
2303         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2304         ldap_mods_free(mods, true);
2305
2306         status = NT_STATUS_OK;
2307
2308   fn_exit:
2309
2310         TALLOC_FREE(ctx);
2311         if (result) {
2312                 ldap_msgfree(result);
2313         }
2314         return status;
2315 }
2316
2317 /**********************************************************************
2318  *********************************************************************/
2319
2320 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2321                                      const char *filter,
2322                                      LDAPMessage ** result)
2323 {
2324         int scope = LDAP_SCOPE_SUBTREE;
2325         int rc;
2326         const char **attr_list;
2327
2328         attr_list = get_attr_list(NULL, groupmap_attr_list);
2329         rc = smbldap_search(ldap_state->smbldap_state,
2330                             lp_ldap_suffix (), scope,
2331                             filter, attr_list, 0, result);
2332         TALLOC_FREE(attr_list);
2333
2334         return rc;
2335 }
2336
2337 /**********************************************************************
2338  *********************************************************************/
2339
2340 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2341                                  GROUP_MAP *map, LDAPMessage *entry)
2342 {
2343         char *temp = NULL;
2344         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2345
2346         if (ldap_state == NULL || map == NULL || entry == NULL ||
2347                         ldap_state->smbldap_state->ldap_struct == NULL) {
2348                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2349                 TALLOC_FREE(ctx);
2350                 return false;
2351         }
2352
2353         temp = smbldap_talloc_single_attribute(
2354                         ldap_state->smbldap_state->ldap_struct,
2355                         entry,
2356                         get_attr_key2string(groupmap_attr_list,
2357                                 LDAP_ATTR_GIDNUMBER),
2358                         ctx);
2359         if (!temp) {
2360                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2361                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2362                 TALLOC_FREE(ctx);
2363                 return false;
2364         }
2365         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2366
2367         map->gid = (gid_t)atol(temp);
2368
2369         TALLOC_FREE(temp);
2370         temp = smbldap_talloc_single_attribute(
2371                         ldap_state->smbldap_state->ldap_struct,
2372                         entry,
2373                         get_attr_key2string(groupmap_attr_list,
2374                                 LDAP_ATTR_GROUP_SID),
2375                         ctx);
2376         if (!temp) {
2377                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2378                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2379                 TALLOC_FREE(ctx);
2380                 return false;
2381         }
2382
2383         if (!string_to_sid(&map->sid, temp)) {
2384                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2385                 TALLOC_FREE(ctx);
2386                 return false;
2387         }
2388
2389         TALLOC_FREE(temp);
2390         temp = smbldap_talloc_single_attribute(
2391                         ldap_state->smbldap_state->ldap_struct,
2392                         entry,
2393                         get_attr_key2string(groupmap_attr_list,
2394                                 LDAP_ATTR_GROUP_TYPE),
2395                         ctx);
2396         if (!temp) {
2397                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2398                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2399                 TALLOC_FREE(ctx);
2400                 return false;
2401         }
2402         map->sid_name_use = (enum lsa_SidType)atol(temp);
2403
2404         if ((map->sid_name_use < SID_NAME_USER) ||
2405                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2406                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2407                 TALLOC_FREE(ctx);
2408                 return false;
2409         }
2410
2411         TALLOC_FREE(temp);
2412         temp = smbldap_talloc_single_attribute(
2413                         ldap_state->smbldap_state->ldap_struct,
2414                         entry,
2415                         get_attr_key2string(groupmap_attr_list,
2416                                 LDAP_ATTR_DISPLAY_NAME),
2417                         ctx);
2418         if (!temp) {
2419                 temp = smbldap_talloc_single_attribute(
2420                                 ldap_state->smbldap_state->ldap_struct,
2421                                 entry,
2422                                 get_attr_key2string(groupmap_attr_list,
2423                                         LDAP_ATTR_CN),
2424                                 ctx);
2425                 if (!temp) {
2426                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2427 for gidNumber(%lu)\n",(unsigned long)map->gid));
2428                         TALLOC_FREE(ctx);
2429                         return false;
2430                 }
2431         }
2432         fstrcpy(map->nt_name, temp);
2433
2434         TALLOC_FREE(temp);
2435         temp = smbldap_talloc_single_attribute(
2436                         ldap_state->smbldap_state->ldap_struct,
2437                         entry,
2438                         get_attr_key2string(groupmap_attr_list,
2439                                 LDAP_ATTR_DESC),
2440                         ctx);
2441         if (!temp) {
2442                 temp = talloc_strdup(ctx, "");
2443                 if (!temp) {
2444                         TALLOC_FREE(ctx);
2445                         return false;
2446                 }
2447         }
2448         fstrcpy(map->comment, temp);
2449
2450         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2451                 store_gid_sid_cache(&map->sid, map->gid);
2452         }
2453
2454         TALLOC_FREE(ctx);
2455         return true;
2456 }
2457
2458 /**********************************************************************
2459  *********************************************************************/
2460
2461 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2462                                  const char *filter,
2463                                  GROUP_MAP *map)
2464 {
2465         struct ldapsam_privates *ldap_state =
2466                 (struct ldapsam_privates *)methods->private_data;
2467         LDAPMessage *result = NULL;
2468         LDAPMessage *entry = NULL;
2469         int count;
2470
2471         if (ldapsam_search_one_group(ldap_state, filter, &result)
2472             != LDAP_SUCCESS) {
2473                 return NT_STATUS_NO_SUCH_GROUP;
2474         }
2475
2476         count = ldap_count_entries(priv2ld(ldap_state), result);
2477
2478         if (count < 1) {
2479                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2480                           "%s\n", filter));
2481                 ldap_msgfree(result);
2482                 return NT_STATUS_NO_SUCH_GROUP;
2483         }
2484
2485         if (count > 1) {
2486                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2487                           "count=%d\n", filter, count));
2488                 ldap_msgfree(result);
2489                 return NT_STATUS_NO_SUCH_GROUP;
2490         }
2491
2492         entry = ldap_first_entry(priv2ld(ldap_state), result);
2493
2494         if (!entry) {
2495                 ldap_msgfree(result);
2496                 return NT_STATUS_UNSUCCESSFUL;
2497         }
2498
2499         if (!init_group_from_ldap(ldap_state, map, entry)) {
2500                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2501                           "group filter %s\n", filter));
2502                 ldap_msgfree(result);
2503                 return NT_STATUS_NO_SUCH_GROUP;
2504         }
2505
2506         ldap_msgfree(result);
2507         return NT_STATUS_OK;
2508 }
2509
2510 /**********************************************************************
2511  *********************************************************************/
2512
2513 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2514                                  DOM_SID sid)
2515 {
2516         char *filter = NULL;
2517         NTSTATUS status;
2518         fstring tmp;
2519
2520         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2521                 LDAP_OBJ_GROUPMAP,
2522                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2523                 sid_to_fstring(tmp, &sid)) < 0) {
2524                 return NT_STATUS_NO_MEMORY;
2525         }
2526
2527         status = ldapsam_getgroup(methods, filter, map);
2528         SAFE_FREE(filter);
2529         return status;
2530 }
2531
2532 /**********************************************************************
2533  *********************************************************************/
2534
2535 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2536                                  gid_t gid)
2537 {
2538         char *filter = NULL;
2539         NTSTATUS status;
2540
2541         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2542                 LDAP_OBJ_GROUPMAP,
2543                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2544                 (unsigned long)gid) < 0) {
2545                 return NT_STATUS_NO_MEMORY;
2546         }
2547
2548         status = ldapsam_getgroup(methods, filter, map);
2549         SAFE_FREE(filter);
2550         return status;
2551 }
2552
2553 /**********************************************************************
2554  *********************************************************************/
2555
2556 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2557                                  const char *name)
2558 {
2559         char *filter = NULL;
2560         char *escape_name = escape_ldap_string(talloc_tos(), name);
2561         NTSTATUS status;
2562
2563         if (!escape_name) {
2564                 return NT_STATUS_NO_MEMORY;
2565         }
2566
2567         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2568                 LDAP_OBJ_GROUPMAP,
2569                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2570                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2571                 escape_name) < 0) {
2572                 TALLOC_FREE(escape_name);
2573                 return NT_STATUS_NO_MEMORY;
2574         }
2575
2576         TALLOC_FREE(escape_name);
2577         status = ldapsam_getgroup(methods, filter, map);
2578         SAFE_FREE(filter);
2579         return status;
2580 }
2581
2582 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2583                                            LDAPMessage *entry,
2584                                            const DOM_SID *domain_sid,
2585                                            uint32 *rid)
2586 {
2587         fstring str;
2588         DOM_SID sid;
2589
2590         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2591                                           str, sizeof(str)-1)) {
2592                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2593                 return False;
2594         }
2595
2596         if (!string_to_sid(&sid, str)) {
2597                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2598                 return False;
2599         }
2600
2601         if (sid_compare_domain(&sid, domain_sid) != 0) {
2602                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2603                            str, sid_string_dbg(domain_sid)));
2604                 return False;
2605         }
2606
2607         if (!sid_peek_rid(&sid, rid)) {
2608                 DEBUG(10, ("Could not peek into RID\n"));
2609                 return False;
2610         }
2611
2612         return True;
2613 }
2614
2615 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2616                                            TALLOC_CTX *mem_ctx,
2617                                            const DOM_SID *group,
2618                                            uint32 **pp_member_rids,
2619                                            size_t *p_num_members)
2620 {
2621         struct ldapsam_privates *ldap_state =
2622                 (struct ldapsam_privates *)methods->private_data;
2623         struct smbldap_state *conn = ldap_state->smbldap_state;
2624         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2625         const char *sid_attrs[] = { "sambaSID", NULL };
2626         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2627         LDAPMessage *result = NULL;
2628         LDAPMessage *entry;
2629         char *filter;
2630         char **values = NULL;
2631         char **memberuid;
2632         char *gidstr;
2633         int rc, count;
2634
2635         *pp_member_rids = NULL;
2636         *p_num_members = 0;
2637
2638         filter = talloc_asprintf(mem_ctx,
2639                                  "(&(objectClass=%s)"
2640                                  "(objectClass=%s)"
2641                                  "(sambaSID=%s))",
2642                                  LDAP_OBJ_POSIXGROUP,
2643                                  LDAP_OBJ_GROUPMAP,
2644                                  sid_string_talloc(mem_ctx, group));
2645         if (filter == NULL) {
2646                 ret = NT_STATUS_NO_MEMORY;
2647                 goto done;
2648         }
2649
2650         rc = smbldap_search(conn, lp_ldap_suffix(),
2651                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2652                             &result);
2653
2654         if (rc != LDAP_SUCCESS)
2655                 goto done;
2656
2657         talloc_autofree_ldapmsg(mem_ctx, result);
2658
2659         count = ldap_count_entries(conn->ldap_struct, result);
2660
2661         if (count > 1) {
2662                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2663                           sid_string_dbg(group)));
2664                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2665                 goto done;
2666         }
2667
2668         if (count == 0) {
2669                 ret = NT_STATUS_NO_SUCH_GROUP;
2670                 goto done;
2671         }
2672
2673         entry = ldap_first_entry(conn->ldap_struct, result);
2674         if (entry == NULL)
2675                 goto done;
2676
2677         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2678         if (!gidstr) {
2679                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2680                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2681                 goto done;
2682         }
2683
2684         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2685
2686         if ((values != NULL) && (values[0] != NULL)) {
2687
2688                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2689                 if (filter == NULL) {
2690                         ret = NT_STATUS_NO_MEMORY;
2691                         goto done;
2692                 }
2693
2694                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2695                         char *escape_memberuid;
2696
2697                         escape_memberuid = escape_ldap_string(talloc_tos(),
2698                                                               *memberuid);
2699                         if (escape_memberuid == NULL) {
2700                                 ret = NT_STATUS_NO_MEMORY;
2701                                 goto done;
2702                         }
2703
2704                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2705                         TALLOC_FREE(escape_memberuid);
2706                         if (filter == NULL) {
2707                                 ret = NT_STATUS_NO_MEMORY;
2708                                 goto done;
2709                         }
2710                 }
2711
2712                 filter = talloc_asprintf_append_buffer(filter, "))");
2713                 if (filter == NULL) {
2714                         ret = NT_STATUS_NO_MEMORY;
2715                         goto done;
2716                 }
2717
2718                 rc = smbldap_search(conn, lp_ldap_suffix(),
2719                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2720                                     &result);
2721
2722                 if (rc != LDAP_SUCCESS)
2723                         goto done;
2724
2725                 count = ldap_count_entries(conn->ldap_struct, result);
2726                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2727
2728                 talloc_autofree_ldapmsg(mem_ctx, result);
2729
2730                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2731                      entry != NULL;
2732                      entry = ldap_next_entry(conn->ldap_struct, entry))
2733                 {
2734                         char *sidstr;
2735                         DOM_SID sid;
2736                         uint32 rid;
2737
2738                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2739                                                                  entry, "sambaSID",
2740                                                                  mem_ctx);
2741                         if (!sidstr) {
2742                                 DEBUG(0, ("Severe DB error, %s can't miss the sambaSID"
2743                                           "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2744                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2745                                 goto done;
2746                         }
2747
2748                         if (!string_to_sid(&sid, sidstr))
2749                                 goto done;
2750
2751                         if (!sid_check_is_in_our_domain(&sid)) {
2752                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2753                                           "in our domain\n"));
2754                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2755                                 goto done;
2756                         }
2757
2758                         sid_peek_rid(&sid, &rid);
2759
2760                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2761                                                 p_num_members)) {
2762                                 ret = NT_STATUS_NO_MEMORY;
2763                                 goto done;
2764                         }
2765                 }
2766         }
2767
2768         filter = talloc_asprintf(mem_ctx,
2769                                  "(&(objectClass=%s)"
2770                                  "(gidNumber=%s))",
2771                                  LDAP_OBJ_SAMBASAMACCOUNT,
2772                                  gidstr);
2773
2774         rc = smbldap_search(conn, lp_ldap_suffix(),
2775                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2776                             &result);
2777
2778         if (rc != LDAP_SUCCESS)
2779                 goto done;
2780
2781         talloc_autofree_ldapmsg(mem_ctx, result);
2782
2783         for (entry = ldap_first_entry(conn->ldap_struct, result);
2784              entry != NULL;
2785              entry = ldap_next_entry(conn->ldap_struct, entry))
2786         {
2787                 uint32 rid;
2788
2789                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2790                                                     entry,
2791                                                     get_global_sam_sid(),
2792                                                     &rid)) {
2793                         DEBUG(0, ("Severe DB error, %s can't miss the samba SID"                                                                "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2794                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2795                         goto done;
2796                 }
2797
2798                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2799                                         p_num_members)) {
2800                         ret = NT_STATUS_NO_MEMORY;
2801                         goto done;
2802                 }
2803         }
2804
2805         ret = NT_STATUS_OK;
2806
2807  done:
2808
2809         if (values)
2810                 ldap_value_free(values);
2811
2812         return ret;
2813 }
2814
2815 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2816                                                TALLOC_CTX *mem_ctx,
2817                                                struct samu *user,
2818                                                DOM_SID **pp_sids,
2819                                                gid_t **pp_gids,
2820                                                size_t *p_num_groups)
2821 {
2822         struct ldapsam_privates *ldap_state =
2823                 (struct ldapsam_privates *)methods->private_data;
2824         struct smbldap_state *conn = ldap_state->smbldap_state;
2825         char *filter;
2826         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2827         char *escape_name;
2828         int rc, count;
2829         LDAPMessage *result = NULL;
2830         LDAPMessage *entry;
2831         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2832         size_t num_sids, num_gids;
2833         char *gidstr;
2834         gid_t primary_gid = -1;
2835
2836         *pp_sids = NULL;
2837         num_sids = 0;
2838
2839         if (pdb_get_username(user) == NULL) {
2840                 return NT_STATUS_INVALID_PARAMETER;
2841         }
2842
2843         escape_name = escape_ldap_string(talloc_tos(), pdb_get_username(user));
2844         if (escape_name == NULL)
2845                 return NT_STATUS_NO_MEMORY;
2846
2847         /* retrieve the users primary gid */
2848         filter = talloc_asprintf(mem_ctx,
2849                                  "(&(objectClass=%s)(uid=%s))",
2850                                  LDAP_OBJ_SAMBASAMACCOUNT,
2851                                  escape_name);
2852         if (filter == NULL) {
2853                 ret = NT_STATUS_NO_MEMORY;
2854                 goto done;
2855         }
2856
2857         rc = smbldap_search(conn, lp_ldap_suffix(),
2858                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2859
2860         if (rc != LDAP_SUCCESS)
2861                 goto done;
2862
2863         talloc_autofree_ldapmsg(mem_ctx, result);
2864
2865         count = ldap_count_entries(priv2ld(ldap_state), result);
2866
2867         switch (count) {
2868         case 0:
2869                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2870                 ret = NT_STATUS_NO_SUCH_USER;
2871                 goto done;
2872         case 1:
2873                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2874
2875                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2876                 if (!gidstr) {
2877                         DEBUG (1, ("Unable to find the member's gid!\n"));
2878                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2879                         goto done;
2880                 }
2881                 primary_gid = strtoul(gidstr, NULL, 10);
2882                 break;
2883         default:
2884                 DEBUG(1, ("found more than one account with the same user name ?!\n"));
2885                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2886                 goto done;
2887         }
2888
2889         filter = talloc_asprintf(mem_ctx,
2890                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%u)))",
2891                                  LDAP_OBJ_POSIXGROUP, escape_name, (unsigned int)primary_gid);
2892         if (filter == NULL) {
2893                 ret = NT_STATUS_NO_MEMORY;
2894                 goto done;
2895         }
2896
2897         rc = smbldap_search(conn, lp_ldap_suffix(),
2898                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2899
2900         if (rc != LDAP_SUCCESS)
2901                 goto done;
2902
2903         talloc_autofree_ldapmsg(mem_ctx, result);
2904
2905         num_gids = 0;
2906         *pp_gids = NULL;
2907
2908         num_sids = 0;
2909         *pp_sids = NULL;
2910
2911         /* We need to add the primary group as the first gid/sid */
2912
2913         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2914                 ret = NT_STATUS_NO_MEMORY;
2915                 goto done;
2916         }
2917
2918         /* This sid will be replaced later */
2919
2920         ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
2921                                       &num_sids);
2922         if (!NT_STATUS_IS_OK(ret)) {
2923                 goto done;
2924         }
2925
2926         for (entry = ldap_first_entry(conn->ldap_struct, result);
2927              entry != NULL;
2928              entry = ldap_next_entry(conn->ldap_struct, entry))
2929         {
2930                 fstring str;
2931                 DOM_SID sid;
2932                 gid_t gid;
2933                 char *end;
2934
2935                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2936                                                   entry, "sambaSID",
2937                                                   str, sizeof(str)-1))
2938                         continue;
2939
2940                 if (!string_to_sid(&sid, str))
2941                         goto done;
2942
2943                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2944                                                   entry, "gidNumber",
2945                                                   str, sizeof(str)-1))
2946                         continue;
2947
2948                 gid = strtoul(str, &end, 10);
2949
2950                 if (PTR_DIFF(end, str) != strlen(str))
2951                         goto done;
2952
2953                 if (gid == primary_gid) {
2954                         sid_copy(&(*pp_sids)[0], &sid);
2955                 } else {
2956                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2957                                                 &num_gids)) {
2958                                 ret = NT_STATUS_NO_MEMORY;
2959                                 goto done;
2960                         }
2961                         ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2962                                                       &num_sids);
2963                         if (!NT_STATUS_IS_OK(ret)) {
2964                                 goto done;
2965                         }
2966                 }
2967         }
2968
2969         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2970                 DEBUG(3, ("primary group of [%s] not found\n",
2971                           pdb_get_username(user)));
2972                 goto done;
2973         }
2974
2975         *p_num_groups = num_sids;
2976
2977         ret = NT_STATUS_OK;
2978
2979  done:
2980
2981         TALLOC_FREE(escape_name);
2982         return ret;
2983 }
2984
2985 /**********************************************************************
2986  * Augment a posixGroup object with a sambaGroupMapping domgroup
2987  *********************************************************************/
2988
2989 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2990                                        struct ldapsam_privates *ldap_state,
2991                                        GROUP_MAP *map)
2992 {
2993         const char *filter, *dn;
2994         LDAPMessage *msg, *entry;
2995         LDAPMod **mods;
2996         int rc;
2997
2998         filter = talloc_asprintf(mem_ctx,
2999                                  "(&(objectClass=%s)(gidNumber=%u))",
3000                                  LDAP_OBJ_POSIXGROUP, (unsigned int)map->gid);
3001         if (filter == NULL) {
3002                 return NT_STATUS_NO_MEMORY;
3003         }
3004
3005         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3006                                    get_attr_list(mem_ctx, groupmap_attr_list),
3007                                    &msg);
3008         talloc_autofree_ldapmsg(mem_ctx, msg);
3009
3010         if ((rc != LDAP_SUCCESS) ||
3011             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3012             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3013                 return NT_STATUS_NO_SUCH_GROUP;
3014         }
3015
3016         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3017         if (dn == NULL) {
3018                 return NT_STATUS_NO_MEMORY;
3019         }
3020
3021         mods = NULL;
3022         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3023                         LDAP_OBJ_GROUPMAP);
3024         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3025                          sid_string_talloc(mem_ctx, &map->sid));
3026         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3027                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3028         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3029                          map->nt_name);
3030         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3031                          map->comment);
3032         talloc_autofree_ldapmod(mem_ctx, mods);
3033
3034         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3035         if (rc != LDAP_SUCCESS) {
3036                 return NT_STATUS_ACCESS_DENIED;
3037         }
3038
3039         return NT_STATUS_OK;
3040 }
3041
3042 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3043                                                 GROUP_MAP *map)
3044 {
3045         struct ldapsam_privates *ldap_state =
3046                 (struct ldapsam_privates *)methods->private_data;
3047         LDAPMessage *msg = NULL;
3048         LDAPMod **mods = NULL;
3049         const char *attrs[] = { NULL };
3050         char *filter;
3051
3052         char *dn;
3053         TALLOC_CTX *mem_ctx;
3054         NTSTATUS result;
3055
3056         DOM_SID sid;
3057
3058         int rc;
3059
3060         mem_ctx = talloc_new(NULL);
3061         if (mem_ctx == NULL) {
3062                 DEBUG(0, ("talloc_new failed\n"));
3063                 return NT_STATUS_NO_MEMORY;
3064         }
3065
3066         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3067                                  sid_string_talloc(mem_ctx, &map->sid));
3068         if (filter == NULL) {
3069                 result = NT_STATUS_NO_MEMORY;
3070                 goto done;
3071         }
3072
3073         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3074                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3075         talloc_autofree_ldapmsg(mem_ctx, msg);
3076
3077         if ((rc == LDAP_SUCCESS) &&
3078             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3079
3080                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3081                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3082                 result = NT_STATUS_GROUP_EXISTS;
3083                 goto done;
3084         }
3085
3086         switch (map->sid_name_use) {
3087
3088         case SID_NAME_DOM_GRP:
3089                 /* To map a domain group we need to have a posix group
3090                    to attach to. */
3091                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3092                 goto done;
3093                 break;
3094
3095         case SID_NAME_ALIAS:
3096                 if (!sid_check_is_in_our_domain(&map->sid)
3097                         && !sid_check_is_in_builtin(&map->sid) )
3098                 {
3099                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3100                                   sid_string_dbg(&map->sid)));
3101                         result = NT_STATUS_INVALID_PARAMETER;
3102                         goto done;
3103                 }
3104                 break;
3105
3106         default:
3107                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3108                           sid_type_lookup(map->sid_name_use)));
3109                 result = NT_STATUS_INVALID_PARAMETER;
3110                 goto done;
3111         }
3112
3113         /* Domain groups have been mapped in a separate routine, we have to
3114          * create an alias now */
3115
3116         if (map->gid == -1) {
3117                 DEBUG(10, ("Refusing to map gid==-1\n"));
3118                 result = NT_STATUS_INVALID_PARAMETER;
3119                 goto done;
3120         }
3121
3122         if (pdb_gid_to_sid(map->gid, &sid)) {
3123                 DEBUG(3, ("Gid %u is already mapped to SID %s, refusing to "
3124                           "add\n", (unsigned int)map->gid, sid_string_dbg(&sid)));
3125                 result = NT_STATUS_GROUP_EXISTS;
3126                 goto done;
3127         }
3128
3129         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3130          * the best we can get out of LDAP. */
3131
3132         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3133                              sid_string_talloc(mem_ctx, &map->sid),
3134                              lp_ldap_group_suffix());
3135         if (dn == NULL) {
3136                 result = NT_STATUS_NO_MEMORY;
3137                 goto done;
3138         }
3139
3140         mods = NULL;
3141
3142         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3143                          LDAP_OBJ_SID_ENTRY);
3144         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3145                          LDAP_OBJ_GROUPMAP);
3146         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3147                          sid_string_talloc(mem_ctx, &map->sid));
3148         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3149                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3150         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3151                          map->nt_name);
3152         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3153                          map->comment);
3154         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3155                          talloc_asprintf(mem_ctx, "%u", (unsigned int)map->gid));
3156         talloc_autofree_ldapmod(mem_ctx, mods);
3157
3158         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3159
3160         result = (rc == LDAP_SUCCESS) ?
3161                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3162
3163  done:
3164         TALLOC_FREE(mem_ctx);
3165         return result;
3166 }
3167
3168 /**********************************************************************
3169  * Update a group mapping entry. We're quite strict about what can be changed:
3170  * Only the description and displayname may be changed. It simply does not
3171  * make any sense to change the SID, gid or the type in a mapping.
3172  *********************************************************************/
3173
3174 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3175                                                    GROUP_MAP *map)
3176 {
3177         struct ldapsam_privates *ldap_state =
3178                 (struct ldapsam_privates *)methods->private_data;
3179         int rc;
3180         const char *filter, *dn;
3181         LDAPMessage *msg = NULL;
3182         LDAPMessage *entry = NULL;
3183         LDAPMod **mods = NULL;
3184         TALLOC_CTX *mem_ctx;
3185         NTSTATUS result;
3186
3187         mem_ctx = talloc_new(NULL);
3188         if (mem_ctx == NULL) {
3189                 DEBUG(0, ("talloc_new failed\n"));
3190                 return NT_STATUS_NO_MEMORY;
3191         }
3192
3193         /* Make 100% sure that sid, gid and type are not changed by looking up
3194          * exactly the values we're given in LDAP. */
3195
3196         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3197                                  "(sambaSid=%s)(gidNumber=%u)"
3198                                  "(sambaGroupType=%d))",
3199                                  LDAP_OBJ_GROUPMAP,
3200                                  sid_string_talloc(mem_ctx, &map->sid),
3201                                  (unsigned int)map->gid, map->sid_name_use);
3202         if (filter == NULL) {
3203                 result = NT_STATUS_NO_MEMORY;
3204                 goto done;
3205         }
3206
3207         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3208                                    get_attr_list(mem_ctx, groupmap_attr_list),
3209                                    &msg);
3210         talloc_autofree_ldapmsg(mem_ctx, msg);
3211
3212         if ((rc != LDAP_SUCCESS) ||
3213             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3214             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3215                 result = NT_STATUS_NO_SUCH_GROUP;
3216                 goto done;
3217         }
3218
3219         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3220
3221         if (dn == NULL) {
3222                 result = NT_STATUS_NO_MEMORY;
3223                 goto done;
3224         }
3225
3226         mods = NULL;
3227         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3228                          map->nt_name);
3229         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3230                          map->comment);
3231         talloc_autofree_ldapmod(mem_ctx, mods);
3232
3233         if (mods == NULL) {
3234                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3235                           "nothing to do\n"));
3236                 result = NT_STATUS_OK;
3237                 goto done;
3238         }
3239
3240         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3241
3242         if (rc != LDAP_SUCCESS) {
3243                 result = NT_STATUS_ACCESS_DENIED;
3244                 goto done;
3245         }
3246
3247         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3248                   "group %lu in LDAP\n", (unsigned long)map->gid));
3249
3250         result = NT_STATUS_OK;
3251
3252  done:
3253         TALLOC_FREE(mem_ctx);
3254         return result;
3255 }
3256
3257 /**********************************************************************
3258  *********************************************************************/
3259
3260 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3261                                                    DOM_SID sid)
3262 {
3263         struct ldapsam_privates *priv =
3264                 (struct ldapsam_privates *)methods->private_data;
3265         LDAPMessage *msg, *entry;
3266         int rc;
3267         NTSTATUS result;
3268         TALLOC_CTX *mem_ctx;
3269         char *filter;
3270
3271         mem_ctx = talloc_new(NULL);
3272         if (mem_ctx == NULL) {
3273                 DEBUG(0, ("talloc_new failed\n"));
3274                 return NT_STATUS_NO_MEMORY;
3275         }
3276
3277         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3278                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3279                                  sid_string_talloc(mem_ctx, &sid));
3280         if (filter == NULL) {
3281                 result = NT_STATUS_NO_MEMORY;
3282                 goto done;
3283         }
3284         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3285                                    get_attr_list(mem_ctx, groupmap_attr_list),
3286                                    &msg);
3287         talloc_autofree_ldapmsg(mem_ctx, msg);
3288
3289         if ((rc != LDAP_SUCCESS) ||
3290             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3291             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3292                 result = NT_STATUS_NO_SUCH_GROUP;
3293                 goto done;
3294         }
3295
3296         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3297                                   get_attr_list(mem_ctx,
3298                                                 groupmap_attr_list_to_delete));
3299
3300         if ((rc == LDAP_NAMING_VIOLATION) ||
3301             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3302             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3303                 const char *attrs[] = { "sambaGroupType", "description",
3304                                         "displayName", "sambaSIDList",
3305                                         NULL };
3306
3307                 /* Second try. Don't delete the sambaSID attribute, this is
3308                    for "old" entries that are tacked on a winbind
3309                    sambaIdmapEntry. */
3310
3311                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3312                                           LDAP_OBJ_GROUPMAP, attrs);
3313         }
3314
3315         if ((rc == LDAP_NAMING_VIOLATION) ||
3316             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3317             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3318                 const char *attrs[] = { "sambaGroupType", "description",
3319                                         "displayName", "sambaSIDList",
3320                                         "gidNumber", NULL };
3321
3322                 /* Third try. This is a post-3.0.21 alias (containing only
3323                  * sambaSidEntry and sambaGroupMapping classes), we also have
3324                  * to delete the gidNumber attribute, only the sambaSidEntry
3325                  * remains */
3326
3327                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3328                                           LDAP_OBJ_GROUPMAP, attrs);
3329         }
3330
3331         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3332
3333  done:
3334         TALLOC_FREE(mem_ctx);
3335         return result;
3336  }
3337
3338 /**********************************************************************
3339  *********************************************************************/
3340
3341 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3342                                     bool update)
3343 {
3344         struct ldapsam_privates *ldap_state =
3345                 (struct ldapsam_privates *)my_methods->private_data;
3346         char *filter = NULL;
3347         int rc;
3348         const char **attr_list;
3349
3350         filter = talloc_asprintf(NULL, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3351         if (!filter) {
3352                 return NT_STATUS_NO_MEMORY;
3353         }
3354         attr_list = get_attr_list( NULL, groupmap_attr_list );
3355         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3356                             LDAP_SCOPE_SUBTREE, filter,
3357                             attr_list, 0, &ldap_state->result);
3358         TALLOC_FREE(attr_list);
3359
3360         if (rc != LDAP_SUCCESS) {
3361                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3362                           ldap_err2string(rc)));
3363                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3364                           lp_ldap_suffix(), filter));
3365                 ldap_msgfree(ldap_state->result);
3366                 ldap_state->result = NULL;
3367                 TALLOC_FREE(filter);
3368                 return NT_STATUS_UNSUCCESSFUL;
3369         }
3370
3371         TALLOC_FREE(filter);
3372
3373         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3374                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3375                                      ldap_state->result)));
3376
3377         ldap_state->entry =
3378                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3379                                  ldap_state->result);
3380         ldap_state->index = 0;
3381
3382         return NT_STATUS_OK;
3383 }
3384
3385 /**********************************************************************
3386  *********************************************************************/
3387
3388 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3389 {
3390         ldapsam_endsampwent(my_methods);
3391 }
3392
3393 /**********************************************************************
3394  *********************************************************************/
3395
3396 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3397                                     GROUP_MAP *map)
3398 {
3399         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3400         struct ldapsam_privates *ldap_state =
3401                 (struct ldapsam_privates *)my_methods->private_data;
3402         bool bret = False;
3403
3404         while (!bret) {
3405                 if (!ldap_state->entry)
3406                         return ret;
3407
3408                 ldap_state->index++;
3409                 bret = init_group_from_ldap(ldap_state, map,
3410                                             ldap_state->entry);
3411
3412                 ldap_state->entry =
3413                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3414                                         ldap_state->entry);
3415         }
3416
3417         return NT_STATUS_OK;
3418 }
3419
3420 /**********************************************************************
3421  *********************************************************************/
3422
3423 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3424                                            const DOM_SID *domsid, enum lsa_SidType sid_name_use,
3425                                            GROUP_MAP **pp_rmap,
3426                                            size_t *p_num_entries,
3427                                            bool unix_only)
3428 {
3429         GROUP_MAP map;
3430         size_t entries = 0;
3431
3432         *p_num_entries = 0;
3433         *pp_rmap = NULL;
3434
3435         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3436                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3437                           "passdb\n"));
3438                 return NT_STATUS_ACCESS_DENIED;
3439         }
3440
3441         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3442                 if (sid_name_use != SID_NAME_UNKNOWN &&
3443                     sid_name_use != map.sid_name_use) {
3444                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3445                                   "not of the requested type\n", map.nt_name));
3446                         continue;
3447                 }
3448                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3449                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3450                                   "non mapped\n", map.nt_name));
3451                         continue;
3452                 }
3453
3454                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3455                 if (!(*pp_rmap)) {
3456                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3457                                  "enlarge group map!\n"));
3458                         return NT_STATUS_UNSUCCESSFUL;
3459                 }
3460
3461                 (*pp_rmap)[entries] = map;
3462
3463                 entries += 1;
3464
3465         }
3466         ldapsam_endsamgrent(methods);
3467
3468         *p_num_entries = entries;
3469
3470         return NT_STATUS_OK;
3471 }
3472
3473 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3474                                         const DOM_SID *alias,
3475                                         const DOM_SID *member,
3476                                         int modop)
3477 {
3478         struct ldapsam_privates *ldap_state =
3479                 (struct ldapsam_privates *)methods->private_data;
3480         char *dn = NULL;
3481         LDAPMessage *result = NULL;
3482         LDAPMessage *entry = NULL;
3483         int count;
3484         LDAPMod **mods = NULL;
3485         int rc;
3486         enum lsa_SidType type = SID_NAME_USE_NONE;
3487         fstring tmp;
3488
3489         char *filter = NULL;
3490
3491         if (sid_check_is_in_builtin(alias)) {
3492                 type = SID_NAME_ALIAS;
3493         }
3494
3495         if (sid_check_is_in_our_domain(alias)) {
3496                 type = SID_NAME_ALIAS;
3497         }
3498
3499         if (type == SID_NAME_USE_NONE) {
3500                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3501                           sid_string_dbg(alias)));
3502                 return NT_STATUS_NO_SUCH_ALIAS;
3503         }
3504
3505         if (asprintf(&filter,
3506                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3507                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3508                      type) < 0) {
3509                 return NT_STATUS_NO_MEMORY;
3510         }
3511
3512         if (ldapsam_search_one_group(ldap_state, filter,
3513                                      &result) != LDAP_SUCCESS) {
3514                 SAFE_FREE(filter);
3515                 return NT_STATUS_NO_SUCH_ALIAS;
3516         }
3517
3518         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3519                                    result);
3520
3521         if (count < 1) {
3522                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3523                 ldap_msgfree(result);
3524                 SAFE_FREE(filter);
3525                 return NT_STATUS_NO_SUCH_ALIAS;
3526         }
3527
3528         if (count > 1) {
3529                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3530                           "filter %s: count=%d\n", filter, count));
3531                 ldap_msgfree(result);
3532                 SAFE_FREE(filter);
3533                 return NT_STATUS_NO_SUCH_ALIAS;
3534         }
3535
3536         SAFE_FREE(filter);
3537
3538         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3539                                  result);
3540
3541         if (!entry) {
3542                 ldap_msgfree(result);
3543                 return NT_STATUS_UNSUCCESSFUL;
3544         }
3545
3546         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
3547         if (!dn) {
3548                 ldap_msgfree(result);
3549                 return NT_STATUS_UNSUCCESSFUL;
3550         }
3551
3552         smbldap_set_mod(&mods, modop,
3553                         get_attr_key2string(groupmap_attr_list,
3554                                             LDAP_ATTR_SID_LIST),
3555                         sid_to_fstring(tmp, member));
3556
3557         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3558
3559         ldap_mods_free(mods, True);
3560         ldap_msgfree(result);
3561         TALLOC_FREE(dn);
3562
3563         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3564                 return NT_STATUS_MEMBER_IN_ALIAS;
3565         }
3566
3567         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3568                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3569         }
3570
3571         if (rc != LDAP_SUCCESS) {
3572                 return NT_STATUS_UNSUCCESSFUL;
3573         }
3574
3575         return NT_STATUS_OK;
3576 }
3577
3578 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3579                                      const DOM_SID *alias,
3580                                      const DOM_SID *member)
3581 {
3582         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3583 }
3584
3585 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3586                                      const DOM_SID *alias,
3587                                      const DOM_SID *member)
3588 {
3589         return ldapsam_modify_aliasmem(methods, alias, member,
3590                                        LDAP_MOD_DELETE);
3591 }
3592
3593 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3594                                       const DOM_SID *alias,
3595                                       TALLOC_CTX *mem_ctx,
3596                                       DOM_SID **pp_members,
3597                                       size_t *p_num_members)
3598 {
3599         struct ldapsam_privates *ldap_state =
3600                 (struct ldapsam_privates *)methods->private_data;
3601         LDAPMessage *result = NULL;
3602         LDAPMessage *entry = NULL;
3603         int count;
3604         char **values = NULL;
3605         int i;
3606         char *filter = NULL;
3607         size_t num_members = 0;
3608         enum lsa_SidType type = SID_NAME_USE_NONE;
3609         fstring tmp;
3610
3611         *pp_members = NULL;
3612         *p_num_members = 0;
3613
3614         if (sid_check_is_in_builtin(alias)) {
3615                 type = SID_NAME_ALIAS;
3616         }
3617
3618         if (sid_check_is_in_our_domain(alias)) {
3619                 type = SID_NAME_ALIAS;
3620         }
3621
3622         if (type == SID_NAME_USE_NONE) {
3623                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3624                           sid_string_dbg(alias)));
3625                 return NT_STATUS_NO_SUCH_ALIAS;
3626         }
3627
3628         if (asprintf(&filter,
3629                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3630                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3631                      type) < 0) {
3632                 return NT_STATUS_NO_MEMORY;
3633         }
3634
3635         if (ldapsam_search_one_group(ldap_state, filter,
3636                                      &result) != LDAP_SUCCESS) {
3637                 SAFE_FREE(filter);
3638                 return NT_STATUS_NO_SUCH_ALIAS;
3639         }
3640
3641         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3642                                    result);
3643
3644         if (count < 1) {
3645                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3646                 ldap_msgfree(result);
3647                 SAFE_FREE(filter);
3648                 return NT_STATUS_NO_SUCH_ALIAS;
3649         }
3650
3651         if (count > 1) {
3652                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3653                           "filter %s: count=%d\n", filter, count));
3654                 ldap_msgfree(result);
3655                 SAFE_FREE(filter);
3656                 return NT_STATUS_NO_SUCH_ALIAS;
3657         }
3658
3659         SAFE_FREE(filter);
3660
3661         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3662                                  result);
3663
3664         if (!entry) {
3665                 ldap_msgfree(result);
3666                 return NT_STATUS_UNSUCCESSFUL;
3667         }
3668
3669         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3670                                  entry,
3671                                  get_attr_key2string(groupmap_attr_list,
3672                                                      LDAP_ATTR_SID_LIST));
3673
3674         if (values == NULL) {
3675                 ldap_msgfree(result);
3676                 return NT_STATUS_OK;
3677         }
3678
3679         count = ldap_count_values(values);
3680
3681         for (i=0; i<count; i++) {
3682                 DOM_SID member;
3683                 NTSTATUS status;
3684
3685                 if (!string_to_sid(&member, values[i]))
3686                         continue;
3687
3688                 status = add_sid_to_array(mem_ctx, &member, pp_members,
3689                                           &num_members);
3690                 if (!NT_STATUS_IS_OK(status)) {
3691                         ldap_value_free(values);
3692                         ldap_msgfree(result);
3693                         return status;
3694                 }
3695         }
3696
3697         *p_num_members = num_members;
3698         ldap_value_free(values);
3699         ldap_msgfree(result);
3700
3701         return NT_STATUS_OK;
3702 }
3703
3704 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3705                                           TALLOC_CTX *mem_ctx,
3706                                           const DOM_SID *domain_sid,
3707                                           const DOM_SID *members,
3708                                           size_t num_members,
3709                                           uint32 **pp_alias_rids,
3710                                           size_t *p_num_alias_rids)
3711 {
3712         struct ldapsam_privates *ldap_state =
3713                 (struct ldapsam_privates *)methods->private_data;
3714         LDAP *ldap_struct;
3715
3716         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3717
3718         LDAPMessage *result = NULL;
3719         LDAPMessage *entry = NULL;
3720         int i;
3721         int rc;
3722         char *filter;
3723         enum lsa_SidType type = SID_NAME_USE_NONE;
3724
3725         *pp_alias_rids = NULL;
3726         *p_num_alias_rids = 0;
3727
3728         if (sid_check_is_builtin(domain_sid)) {
3729                 type = SID_NAME_ALIAS;
3730         }
3731
3732         if (sid_check_is_domain(domain_sid)) {
3733                 type = SID_NAME_ALIAS;
3734         }
3735
3736         if (type == SID_NAME_USE_NONE) {
3737                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3738                           sid_string_dbg(domain_sid)));
3739                 return NT_STATUS_UNSUCCESSFUL;
3740         }
3741
3742         if (num_members == 0) {
3743                 return NT_STATUS_OK;
3744         }
3745
3746         filter = talloc_asprintf(mem_ctx,
3747                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3748                                  LDAP_OBJ_GROUPMAP, type);
3749
3750         for (i=0; i<num_members; i++)
3751                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3752                                          filter,
3753                                          sid_string_talloc(mem_ctx,
3754                                                            &members[i]));
3755
3756         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3757
3758         if (filter == NULL) {
3759                 return NT_STATUS_NO_MEMORY;
3760         }
3761
3762         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3763                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3764
3765         if (rc != LDAP_SUCCESS)
3766                 return NT_STATUS_UNSUCCESSFUL;
3767
3768         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3769
3770         for (entry = ldap_first_entry(ldap_struct, result);
3771              entry != NULL;
3772              entry = ldap_next_entry(ldap_struct, entry))
3773         {
3774                 fstring sid_str;
3775                 DOM_SID sid;
3776                 uint32 rid;
3777
3778                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3779                                                   LDAP_ATTRIBUTE_SID,
3780                                                   sid_str,
3781                                                   sizeof(sid_str)-1))
3782                         continue;
3783
3784                 if (!string_to_sid(&sid, sid_str))
3785                         continue;
3786
3787                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3788                         continue;
3789
3790                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3791                                         p_num_alias_rids)) {
3792                         ldap_msgfree(result);
3793                         return NT_STATUS_NO_MEMORY;
3794                 }
3795         }
3796
3797         ldap_msgfree(result);
3798         return NT_STATUS_OK;
3799 }
3800
3801 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3802                                                    enum pdb_policy_type type,
3803                                                    uint32 value)
3804 {
3805         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3806         int rc;
3807         LDAPMod **mods = NULL;
3808         fstring value_string;
3809         const char *policy_attr = NULL;
3810
3811         struct ldapsam_privates *ldap_state =
3812                 (struct ldapsam_privates *)methods->private_data;
3813
3814         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3815
3816         if (!ldap_state->domain_dn) {
3817                 return NT_STATUS_INVALID_PARAMETER;
3818         }
3819
3820         policy_attr = get_account_policy_attr(type);
3821         if (policy_attr == NULL) {
3822                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3823                          "policy\n"));
3824                 return ntstatus;
3825         }
3826
3827         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3828
3829         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3830
3831         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3832                             mods);
3833
3834         ldap_mods_free(mods, True);
3835
3836         if (rc != LDAP_SUCCESS) {
3837                 return ntstatus;
3838         }
3839
3840         if (!cache_account_policy_set(type, value)) {
3841                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3842                          "update local tdb cache\n"));
3843                 return ntstatus;
3844         }
3845
3846         return NT_STATUS_OK;
3847 }
3848
3849 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3850                                            enum pdb_policy_type type,
3851                                            uint32_t value)
3852 {
3853         return ldapsam_set_account_policy_in_ldap(methods, type,
3854                                                   value);
3855 }
3856
3857 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3858                                                      enum pdb_policy_type type,
3859                                                      uint32 *value)
3860 {
3861         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3862         LDAPMessage *result = NULL;
3863         LDAPMessage *entry = NULL;
3864         int count;
3865         int rc;
3866         char **vals = NULL;
3867         char *filter;
3868         const char *policy_attr = NULL;
3869
3870         struct ldapsam_privates *ldap_state =
3871                 (struct ldapsam_privates *)methods->private_data;
3872
3873         const char *attrs[2];
3874
3875         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3876
3877         if (!ldap_state->domain_dn) {
3878                 return NT_STATUS_INVALID_PARAMETER;
3879         }
3880
3881         policy_attr = get_account_policy_attr(type);
3882         if (!policy_attr) {
3883                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3884                          "policy index: %d\n", type));
3885                 return ntstatus;
3886         }
3887
3888         attrs[0] = policy_attr;
3889         attrs[1] = NULL;
3890
3891         filter = talloc_asprintf(NULL, "(objectClass=%s)", LDAP_OBJ_DOMINFO);
3892         if (filter == NULL) {
3893                 return NT_STATUS_NO_MEMORY;
3894         }
3895         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3896                             LDAP_SCOPE_BASE, filter, attrs, 0,
3897                             &result);
3898
3899         if (rc != LDAP_SUCCESS) {
3900                 return ntstatus;
3901         }
3902
3903         count = ldap_count_entries(priv2ld(ldap_state), result);
3904         if (count < 1) {
3905                 goto out;
3906         }
3907
3908         entry = ldap_first_entry(priv2ld(ldap_state), result);
3909         if (entry == NULL) {
3910                 goto out;
3911         }
3912
3913         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3914         if (vals == NULL) {
3915                 goto out;
3916         }
3917
3918         *value = (uint32)atol(vals[0]);
3919
3920         ntstatus = NT_STATUS_OK;
3921
3922 out:
3923         if (vals)
3924                 ldap_value_free(vals);
3925         ldap_msgfree(result);
3926
3927         return ntstatus;
3928 }
3929
3930 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3931
3932    - if user hasn't decided to use account policies inside LDAP just reuse the
3933      old tdb values
3934
3935    - if there is a valid cache entry, return that
3936    - if there is an LDAP entry, update cache and return
3937    - otherwise set to default, update cache and return
3938
3939    Guenther
3940 */
3941 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3942                                            enum pdb_policy_type type,
3943                                            uint32_t *value)
3944 {
3945         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3946
3947         if (cache_account_policy_get(type, value)) {
3948                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3949                           "cache\n"));
3950                 return NT_STATUS_OK;
3951         }
3952
3953         ntstatus = ldapsam_get_account_policy_from_ldap(methods, type,
3954                                                         value);
3955         if (NT_STATUS_IS_OK(ntstatus)) {
3956                 goto update_cache;
3957         }
3958
3959         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
3960                   "ldap\n"));
3961
3962 #if 0
3963         /* should we automagically migrate old tdb value here ? */
3964         if (account_policy_get(type, value))
3965                 goto update_ldap;
3966
3967         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
3968                   "default\n", type));
3969 #endif
3970
3971         if (!account_policy_get_default(type, value)) {
3972                 return ntstatus;
3973         }
3974
3975 /* update_ldap: */
3976
3977         ntstatus = ldapsam_set_account_policy(methods, type, *value);
3978         if (!NT_STATUS_IS_OK(ntstatus)) {
3979                 return ntstatus;
3980         }
3981
3982  update_cache:
3983
3984         if (!cache_account_policy_set(type, *value)) {
3985                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
3986                          "tdb as a cache\n"));
3987                 return NT_STATUS_UNSUCCESSFUL;
3988         }
3989
3990         return NT_STATUS_OK;
3991 }
3992
3993 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
3994                                     const DOM_SID *domain_sid,
3995                                     int num_rids,
3996                                     uint32 *rids,
3997                                     const char **names,
3998                                     enum lsa_SidType *attrs)
3999 {
4000         struct ldapsam_privates *ldap_state =
4001                 (struct ldapsam_privates *)methods->private_data;
4002         LDAPMessage *msg = NULL;
4003         LDAPMessage *entry;
4004         char *allsids = NULL;
4005         int i, rc, num_mapped;
4006         NTSTATUS result = NT_STATUS_NO_MEMORY;
4007         TALLOC_CTX *mem_ctx;
4008         LDAP *ld;
4009         bool is_builtin;
4010
4011         mem_ctx = talloc_new(NULL);
4012         if (mem_ctx == NULL) {
4013                 DEBUG(0, ("talloc_new failed\n"));
4014                 goto done;
4015         }
4016
4017         if (!sid_check_is_builtin(domain_sid) &&
4018             !sid_check_is_domain(domain_sid)) {
4019                 result = NT_STATUS_INVALID_PARAMETER;
4020                 goto done;
4021         }
4022
4023         if (num_rids == 0) {
4024                 result = NT_STATUS_NONE_MAPPED;
4025                 goto done;
4026         }
4027
4028         for (i=0; i<num_rids; i++)
4029                 attrs[i] = SID_NAME_UNKNOWN;
4030
4031         allsids = talloc_strdup(mem_ctx, "");
4032         if (allsids == NULL) {
4033                 goto done;
4034         }
4035
4036         for (i=0; i<num_rids; i++) {
4037                 DOM_SID sid;
4038                 sid_compose(&sid, domain_sid, rids[i]);
4039                 allsids = talloc_asprintf_append_buffer(
4040                         allsids, "(sambaSid=%s)",
4041                         sid_string_talloc(mem_ctx, &sid));
4042                 if (allsids == NULL) {
4043                         goto done;
4044                 }
4045         }
4046
4047         /* First look for users */
4048
4049         {
4050                 char *filter;
4051                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
4052
4053                 filter = talloc_asprintf(
4054                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
4055                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
4056
4057                 if (filter == NULL) {
4058                         goto done;
4059                 }
4060
4061                 rc = smbldap_search(ldap_state->smbldap_state,
4062                                     lp_ldap_user_suffix(),
4063                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4064                                     &msg);
4065                 talloc_autofree_ldapmsg(mem_ctx, msg);
4066         }
4067
4068         if (rc != LDAP_SUCCESS)
4069                 goto done;
4070
4071         ld = ldap_state->smbldap_state->ldap_struct;
4072         num_mapped = 0;
4073
4074         for (entry = ldap_first_entry(ld, msg);
4075              entry != NULL;
4076              entry = ldap_next_entry(ld, entry)) {
4077                 uint32 rid;
4078                 int rid_index;
4079                 const char *name;
4080
4081                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4082                                                     &rid)) {
4083                         DEBUG(2, ("Could not find sid from ldap entry\n"));
4084                         continue;
4085                 }
4086
4087                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
4088                                                        names);
4089                 if (name == NULL) {
4090                         DEBUG(2, ("Could not retrieve uid attribute\n"));
4091                         continue;
4092                 }
4093
4094                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4095                         if (rid == rids[rid_index])
4096                                 break;
4097                 }
4098
4099                 if (rid_index == num_rids) {
4100                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4101                         continue;
4102                 }
4103
4104                 attrs[rid_index] = SID_NAME_USER;
4105                 names[rid_index] = name;
4106                 num_mapped += 1;
4107         }
4108
4109         if (num_mapped == num_rids) {
4110                 /* No need to look for groups anymore -- we're done */
4111                 result = NT_STATUS_OK;
4112                 goto done;
4113         }
4114
4115         /* Same game for groups */
4116
4117         {
4118                 char *filter;
4119                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
4120                                              "sambaGroupType", NULL };
4121
4122                 filter = talloc_asprintf(
4123                         mem_ctx, "(&(objectClass=%s)(|%s))",
4124                         LDAP_OBJ_GROUPMAP, allsids);
4125                 if (filter == NULL) {
4126                         goto done;
4127                 }
4128
4129                 rc = smbldap_search(ldap_state->smbldap_state,
4130                                     lp_ldap_suffix(),
4131                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4132                                     &msg);
4133                 talloc_autofree_ldapmsg(mem_ctx, msg);
4134         }
4135
4136         if (rc != LDAP_SUCCESS)
4137                 goto done;
4138
4139         /* ldap_struct might have changed due to a reconnect */
4140
4141         ld = ldap_state->smbldap_state->ldap_struct;
4142
4143         /* For consistency checks, we already checked we're only domain or builtin */
4144
4145         is_builtin = sid_check_is_builtin(domain_sid);
4146
4147         for (entry = ldap_first_entry(ld, msg);
4148              entry != NULL;
4149              entry = ldap_next_entry(ld, entry))
4150         {
4151                 uint32 rid;
4152                 int rid_index;
4153                 const char *attr;
4154                 enum lsa_SidType type;
4155                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
4156
4157                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
4158                                                        mem_ctx);
4159                 if (attr == NULL) {
4160                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
4161                                   dn));
4162                         continue;
4163                 }
4164
4165                 type = (enum lsa_SidType)atol(attr);
4166
4167                 /* Consistency checks */
4168                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
4169                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
4170                                      (type != SID_NAME_DOM_GRP)))) {
4171                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
4172                 }
4173
4174                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4175                                                     &rid)) {
4176                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
4177                         continue;
4178                 }
4179
4180                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
4181
4182                 if (attr == NULL) {
4183                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
4184                                    dn));
4185                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
4186                 }
4187
4188                 if (attr == NULL) {
4189                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
4190                                   dn));
4191                         continue;
4192                 }
4193
4194                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4195                         if (rid == rids[rid_index])
4196                                 break;
4197                 }
4198
4199                 if (rid_index == num_rids) {
4200                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4201                         continue;
4202                 }
4203
4204                 attrs[rid_index] = type;
4205                 names[rid_index] = attr;
4206                 num_mapped += 1;
4207         }
4208
4209         result = NT_STATUS_NONE_MAPPED;
4210
4211         if (num_mapped > 0)
4212                 result = (num_mapped == num_rids) ?
4213                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
4214  done:
4215         TALLOC_FREE(mem_ctx);
4216         return result;
4217 }
4218
4219 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
4220 {
4221         char *filter = NULL;
4222         char *escaped = NULL;
4223         char *result = NULL;
4224
4225         if (asprintf(&filter, "(&%s(objectclass=%s))",
4226                           "(uid=%u)", LDAP_OBJ_SAMBASAMACCOUNT) < 0) {
4227                 goto done;
4228         }
4229
4230         escaped = escape_ldap_string(talloc_tos(), username);
4231         if (escaped == NULL) goto done;
4232
4233         result = talloc_string_sub(mem_ctx, filter, "%u", username);
4234
4235  done:
4236         SAFE_FREE(filter);
4237         TALLOC_FREE(escaped);
4238
4239         return result;
4240 }
4241
4242 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
4243 {
4244         int i, num = 0;
4245         va_list ap;
4246         const char **result;
4247
4248         va_start(ap, mem_ctx);
4249         while (va_arg(ap, const char *) != NULL)
4250                 num += 1;
4251         va_end(ap);
4252
4253         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
4254                 return NULL;
4255         }
4256
4257         va_start(ap, mem_ctx);
4258         for (i=0; i<num; i++) {
4259                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
4260                 if (result[i] == NULL) {
4261                         talloc_free(result);
4262                         va_end(ap);
4263                         return NULL;
4264                 }
4265         }
4266         va_end(ap);
4267
4268         result[num] = NULL;
4269         return result;
4270 }
4271
4272 struct ldap_search_state {
4273         struct smbldap_state *connection;
4274
4275         uint32 acct_flags;
4276         uint16 group_type;
4277
4278         const char *base;
4279         int scope;
4280         const char *filter;
4281         const char **attrs;
4282         int attrsonly;
4283         void *pagedresults_cookie;
4284
4285         LDAPMessage *entries, *current_entry;
4286         bool (*ldap2displayentry)(struct ldap_search_state *state,
4287                                   TALLOC_CTX *mem_ctx,
4288                                   LDAP *ld, LDAPMessage *entry,
4289                                   struct samr_displayentry *result);
4290 };
4291
4292 static bool ldapsam_search_firstpage(struct pdb_search *search)
4293 {
4294         struct ldap_search_state *state =
4295                 (struct ldap_search_state *)search->private_data;
4296         LDAP *ld;
4297         int rc = LDAP_OPERATIONS_ERROR;
4298
4299         state->entries = NULL;
4300
4301         if (state->connection->paged_results) {
4302                 rc = smbldap_search_paged(state->connection, state->base,
4303                                           state->scope, state->filter,
4304                                           state->attrs, state->attrsonly,
4305                                           lp_ldap_page_size(), &state->entries,
4306                                           &state->pagedresults_cookie);
4307         }
4308
4309         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
4310
4311                 if (state->entries != NULL) {
4312                         /* Left over from unsuccessful paged attempt */
4313                         ldap_msgfree(state->entries);
4314                         state->entries = NULL;
4315                 }
4316
4317                 rc = smbldap_search(state->connection, state->base,
4318                                     state->scope, state->filter, state->attrs,
4319                                     state->attrsonly, &state->entries);
4320
4321                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4322                         return False;
4323
4324                 /* Ok, the server was lying. It told us it could do paged
4325                  * searches when it could not. */
4326                 state->connection->paged_results = False;
4327         }
4328
4329         ld = state->connection->ldap_struct;
4330         if ( ld == NULL) {
4331                 DEBUG(5, ("Don't have an LDAP connection right after a "
4332                           "search\n"));
4333                 return False;
4334         }
4335         state->current_entry = ldap_first_entry(ld, state->entries);
4336
4337         if (state->current_entry == NULL) {
4338                 ldap_msgfree(state->entries);
4339                 state->entries = NULL;
4340         }
4341
4342         return True;
4343 }
4344
4345 static bool ldapsam_search_nextpage(struct pdb_search *search)
4346 {
4347         struct ldap_search_state *state =
4348                 (struct ldap_search_state *)search->private_data;
4349         int rc;
4350
4351         if (!state->connection->paged_results) {
4352                 /* There is no next page when there are no paged results */
4353                 return False;
4354         }
4355
4356         rc = smbldap_search_paged(state->connection, state->base,
4357                                   state->scope, state->filter, state->attrs,
4358                                   state->attrsonly, lp_ldap_page_size(),
4359                                   &state->entries,
4360                                   &state->pagedresults_cookie);
4361
4362         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4363                 return False;
4364
4365         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4366
4367         if (state->current_entry == NULL) {
4368                 ldap_msgfree(state->entries);
4369                 state->entries = NULL;
4370         }
4371
4372         return True;
4373 }
4374
4375 static bool ldapsam_search_next_entry(struct pdb_search *search,
4376                                       struct samr_displayentry *entry)
4377 {
4378         struct ldap_search_state *state =
4379                 (struct ldap_search_state *)search->private_data;
4380         bool result;
4381
4382  retry:
4383         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4384                 return False;
4385
4386         if ((state->entries == NULL) &&
4387             !ldapsam_search_nextpage(search))
4388                     return False;
4389
4390         result = state->ldap2displayentry(state, search,
4391                                           state->connection->ldap_struct,
4392                                           state->current_entry, entry);
4393
4394         if (!result) {
4395                 char *dn;
4396                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4397                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4398                 if (dn != NULL) ldap_memfree(dn);
4399         }
4400
4401         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4402
4403         if (state->current_entry == NULL) {
4404                 ldap_msgfree(state->entries);
4405                 state->entries = NULL;
4406         }
4407
4408         if (!result) goto retry;
4409
4410         return True;
4411 }
4412
4413 static void ldapsam_search_end(struct pdb_search *search)
4414 {
4415         struct ldap_search_state *state =
4416                 (struct ldap_search_state *)search->private_data;
4417         int rc;
4418
4419         if (state->pagedresults_cookie == NULL)
4420                 return;
4421
4422         if (state->entries != NULL)
4423                 ldap_msgfree(state->entries);
4424
4425         state->entries = NULL;
4426         state->current_entry = NULL;
4427
4428         if (!state->connection->paged_results)
4429                 return;
4430
4431         /* Tell the LDAP server we're not interested in the rest anymore. */
4432
4433         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4434                                   state->filter, state->attrs,
4435                                   state->attrsonly, 0, &state->entries,
4436                                   &state->pagedresults_cookie);
4437
4438         if (rc != LDAP_SUCCESS)
4439                 DEBUG(5, ("Could not end search properly\n"));
4440
4441         return;
4442 }
4443
4444 static bool ldapuser2displayentry(struct ldap_search_state *state,
4445                                   TALLOC_CTX *mem_ctx,
4446                                   LDAP *ld, LDAPMessage *entry,
4447                                   struct samr_displayentry *result)
4448 {
4449         char **vals;
4450         size_t converted_size;
4451         DOM_SID sid;
4452         uint32 acct_flags;
4453
4454         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4455         if ((vals == NULL) || (vals[0] == NULL)) {
4456                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4457                 return False;
4458         }
4459         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4460         ldap_value_free(vals);
4461
4462         if ((state->acct_flags != 0) &&
4463             ((state->acct_flags & acct_flags) == 0))
4464                 return False;
4465
4466         result->acct_flags = acct_flags;
4467         result->account_name = "";
4468         result->fullname = "";
4469         result->description = "";
4470
4471         vals = ldap_get_values(ld, entry, "uid");
4472         if ((vals == NULL) || (vals[0] == NULL)) {
4473                 DEBUG(5, ("\"uid\" not found\n"));
4474                 return False;
4475         }
4476         if (!pull_utf8_talloc(mem_ctx,
4477                               CONST_DISCARD(char **, &result->account_name),
4478                               vals[0], &converted_size))
4479         {
4480                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4481                          strerror(errno)));
4482         }
4483
4484         ldap_value_free(vals);
4485
4486         vals = ldap_get_values(ld, entry, "displayName");
4487         if ((vals == NULL) || (vals[0] == NULL))
4488                 DEBUG(8, ("\"displayName\" not found\n"));
4489         else if (!pull_utf8_talloc(mem_ctx,
4490                                    CONST_DISCARD(char **, &result->fullname),
4491                                    vals[0], &converted_size))
4492         {
4493                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4494                          strerror(errno)));
4495         }
4496
4497         ldap_value_free(vals);
4498
4499         vals = ldap_get_values(ld, entry, "description");
4500         if ((vals == NULL) || (vals[0] == NULL))
4501                 DEBUG(8, ("\"description\" not found\n"));
4502         else if (!pull_utf8_talloc(mem_ctx,
4503                                    CONST_DISCARD(char **, &result->description),
4504                                    vals[0], &converted_size))
4505         {
4506                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4507                          strerror(errno)));
4508         }
4509
4510         ldap_value_free(vals);
4511
4512         if ((result->account_name == NULL) ||
4513             (result->fullname == NULL) ||
4514             (result->description == NULL)) {
4515                 DEBUG(0, ("talloc failed\n"));
4516                 return False;
4517         }
4518
4519         vals = ldap_get_values(ld, entry, "sambaSid");
4520         if ((vals == NULL) || (vals[0] == NULL)) {
4521                 DEBUG(0, ("\"objectSid\" not found\n"));
4522                 return False;
4523         }
4524
4525         if (!string_to_sid(&sid, vals[0])) {
4526                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4527                 ldap_value_free(vals);
4528                 return False;
4529         }
4530         ldap_value_free(vals);
4531
4532         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4533                 DEBUG(0, ("sid %s does not belong to our domain\n",
4534                           sid_string_dbg(&sid)));
4535                 return False;
4536         }
4537
4538         return True;
4539 }
4540
4541
4542 static bool ldapsam_search_users(struct pdb_methods *methods,
4543                                  struct pdb_search *search,
4544                                  uint32 acct_flags)
4545 {
4546         struct ldapsam_privates *ldap_state =
4547                 (struct ldapsam_privates *)methods->private_data;
4548         struct ldap_search_state *state;
4549
4550         state = talloc(search, struct ldap_search_state);
4551         if (state == NULL) {
4552                 DEBUG(0, ("talloc failed\n"));
4553                 return False;
4554         }
4555
4556         state->connection = ldap_state->smbldap_state;
4557
4558         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4559                 state->base = lp_ldap_user_suffix();
4560         else if ((acct_flags != 0) &&
4561                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4562                 state->base = lp_ldap_machine_suffix();
4563         else
4564                 state->base = lp_ldap_suffix();
4565
4566         state->acct_flags = acct_flags;
4567         state->base = talloc_strdup(search, state->base);
4568         state->scope = LDAP_SCOPE_SUBTREE;
4569         state->filter = get_ldap_filter(search, "*");
4570         state->attrs = talloc_attrs(search, "uid", "sambaSid",
4571                                     "displayName", "description",
4572                                     "sambaAcctFlags", NULL);
4573         state->attrsonly = 0;
4574         state->pagedresults_cookie = NULL;
4575         state->entries = NULL;
4576         state->ldap2displayentry = ldapuser2displayentry;
4577
4578         if ((state->filter == NULL) || (state->attrs == NULL)) {
4579                 DEBUG(0, ("talloc failed\n"));
4580                 return False;
4581         }
4582
4583         search->private_data = state;
4584         search->next_entry = ldapsam_search_next_entry;
4585         search->search_end = ldapsam_search_end;
4586
4587         return ldapsam_search_firstpage(search);
4588 }
4589
4590 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4591                                    TALLOC_CTX *mem_ctx,
4592                                    LDAP *ld, LDAPMessage *entry,
4593                                    struct samr_displayentry *result)
4594 {
4595         char **vals;
4596         size_t converted_size;
4597         DOM_SID sid;
4598         uint16 group_type;
4599
4600         result->account_name = "";
4601         result->fullname = "";
4602         result->description = "";
4603
4604
4605         vals = ldap_get_values(ld, entry, "sambaGroupType");
4606         if ((vals == NULL) || (vals[0] == NULL)) {
4607                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4608                 if (vals != NULL) {
4609                         ldap_value_free(vals);
4610                 }
4611                 return False;
4612         }
4613
4614         group_type = atoi(vals[0]);
4615
4616         if ((state->group_type != 0) &&
4617             ((state->group_type != group_type))) {
4618                 ldap_value_free(vals);
4619                 return False;
4620         }
4621
4622         ldap_value_free(vals);
4623
4624         /* display name is the NT group name */
4625
4626         vals = ldap_get_values(ld, entry, "displayName");
4627         if ((vals == NULL) || (vals[0] == NULL)) {
4628                 DEBUG(8, ("\"displayName\" not found\n"));
4629
4630                 /* fallback to the 'cn' attribute */
4631                 vals = ldap_get_values(ld, entry, "cn");
4632                 if ((vals == NULL) || (vals[0] == NULL)) {
4633                         DEBUG(5, ("\"cn\" not found\n"));
4634                         return False;
4635                 }
4636                 if (!pull_utf8_talloc(mem_ctx,
4637                                       CONST_DISCARD(char **,
4638                                                     &result->account_name),
4639                                       vals[0], &converted_size))
4640                 {
4641                         DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc "
4642                                   "failed: %s", strerror(errno)));
4643                 }
4644         }
4645         else if (!pull_utf8_talloc(mem_ctx,
4646                                    CONST_DISCARD(char **,
4647                                                  &result->account_name),
4648                                    vals[0], &converted_size))
4649         {
4650                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4651                           strerror(errno)));
4652         }
4653
4654         ldap_value_free(vals);
4655
4656         vals = ldap_get_values(ld, entry, "description");
4657         if ((vals == NULL) || (vals[0] == NULL))
4658                 DEBUG(8, ("\"description\" not found\n"));
4659         else if (!pull_utf8_talloc(mem_ctx,
4660                                    CONST_DISCARD(char **, &result->description),
4661                                    vals[0], &converted_size))
4662         {
4663                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4664                           strerror(errno)));
4665         }
4666         ldap_value_free(vals);
4667
4668         if ((result->account_name == NULL) ||
4669             (result->fullname == NULL) ||
4670             (result->description == NULL)) {
4671                 DEBUG(0, ("talloc failed\n"));
4672                 return False;
4673         }
4674
4675         vals = ldap_get_values(ld, entry, "sambaSid");
4676         if ((vals == NULL) || (vals[0] == NULL)) {
4677                 DEBUG(0, ("\"objectSid\" not found\n"));
4678                 if (vals != NULL) {
4679                         ldap_value_free(vals);
4680                 }
4681                 return False;
4682         }
4683
4684         if (!string_to_sid(&sid, vals[0])) {
4685                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4686                 return False;
4687         }
4688
4689         ldap_value_free(vals);
4690
4691         switch (group_type) {
4692                 case SID_NAME_DOM_GRP:
4693                 case SID_NAME_ALIAS:
4694
4695                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4696                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4697                         {
4698                                 DEBUG(0, ("%s is not in our domain\n",
4699                                           sid_string_dbg(&sid)));
4700                                 return False;
4701                         }
4702                         break;
4703
4704                 default:
4705                         DEBUG(0,("unkown group type: %d\n", group_type));
4706                         return False;
4707         }
4708
4709         result->acct_flags = 0;
4710
4711         return True;
4712 }
4713
4714 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4715                                      struct pdb_search *search,
4716                                      const DOM_SID *sid,
4717                                      enum lsa_SidType type)
4718 {
4719         struct ldapsam_privates *ldap_state =
4720                 (struct ldapsam_privates *)methods->private_data;
4721         struct ldap_search_state *state;
4722         fstring tmp;
4723
4724         state = talloc(search, struct ldap_search_state);
4725         if (state == NULL) {
4726                 DEBUG(0, ("talloc failed\n"));
4727                 return False;
4728         }
4729
4730         state->connection = ldap_state->smbldap_state;
4731
4732         state->base = talloc_strdup(search, lp_ldap_suffix());
4733         state->connection = ldap_state->smbldap_state;
4734         state->scope = LDAP_SCOPE_SUBTREE;
4735         state->filter = talloc_asprintf(search, "(&(objectclass=%s)"
4736                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4737                                          LDAP_OBJ_GROUPMAP,
4738                                          type, sid_to_fstring(tmp, sid));
4739         state->attrs = talloc_attrs(search, "cn", "sambaSid",
4740                                     "displayName", "description",
4741                                     "sambaGroupType", NULL);
4742         state->attrsonly = 0;
4743         state->pagedresults_cookie = NULL;
4744         state->entries = NULL;
4745         state->group_type = type;
4746         state->ldap2displayentry = ldapgroup2displayentry;
4747
4748         if ((state->filter == NULL) || (state->attrs == NULL)) {
4749                 DEBUG(0, ("talloc failed\n"));
4750                 return False;
4751         }
4752
4753         search->private_data = state;
4754         search->next_entry = ldapsam_search_next_entry;
4755         search->search_end = ldapsam_search_end;
4756
4757         return ldapsam_search_firstpage(search);
4758 }
4759
4760 static bool ldapsam_search_groups(struct pdb_methods *methods,
4761                                   struct pdb_search *search)
4762 {
4763         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4764 }
4765
4766 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4767                                    struct pdb_search *search,
4768                                    const DOM_SID *sid)
4769 {
4770         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4771 }
4772
4773 static uint32_t ldapsam_capabilities(struct pdb_methods *methods)
4774 {
4775         return PDB_CAP_STORE_RIDS;
4776 }
4777
4778 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4779                                     uint32 *rid)
4780 {
4781         struct smbldap_state *smbldap_state = priv->smbldap_state;
4782
4783         LDAPMessage *result = NULL;
4784         LDAPMessage *entry = NULL;
4785         LDAPMod **mods = NULL;
4786         NTSTATUS status;
4787         char *value;
4788         int rc;
4789         uint32 nextRid = 0;
4790         const char *dn;
4791
4792         TALLOC_CTX *mem_ctx;
4793
4794         mem_ctx = talloc_new(NULL);
4795         if (mem_ctx == NULL) {
4796                 DEBUG(0, ("talloc_new failed\n"));
4797                 return NT_STATUS_NO_MEMORY;
4798         }
4799
4800         status = smbldap_search_domain_info(smbldap_state, &result,
4801                                             get_global_sam_name(), False);
4802         if (!NT_STATUS_IS_OK(status)) {
4803                 DEBUG(3, ("Could not get domain info: %s\n",
4804                           nt_errstr(status)));
4805                 goto done;
4806         }
4807
4808         talloc_autofree_ldapmsg(mem_ctx, result);
4809
4810         entry = ldap_first_entry(priv2ld(priv), result);
4811         if (entry == NULL) {
4812                 DEBUG(0, ("Could not get domain info entry\n"));
4813                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4814                 goto done;
4815         }
4816
4817         /* Find the largest of the three attributes "sambaNextRid",
4818            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4819            concept of differentiating between user and group rids, and will
4820            use only "sambaNextRid" in the future. But for compatibility
4821            reasons I look if others have chosen different strategies -- VL */
4822
4823         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4824                                                 "sambaNextRid", mem_ctx);
4825         if (value != NULL) {
4826                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4827                 nextRid = MAX(nextRid, tmp);
4828         }
4829
4830         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4831                                                 "sambaNextUserRid", mem_ctx);
4832         if (value != NULL) {
4833                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4834                 nextRid = MAX(nextRid, tmp);
4835         }
4836
4837         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4838                                                 "sambaNextGroupRid", mem_ctx);
4839         if (value != NULL) {
4840                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4841                 nextRid = MAX(nextRid, tmp);
4842         }
4843
4844         if (nextRid == 0) {
4845                 nextRid = BASE_RID-1;
4846         }
4847
4848         nextRid += 1;
4849
4850         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4851                          talloc_asprintf(mem_ctx, "%d", nextRid));
4852         talloc_autofree_ldapmod(mem_ctx, mods);
4853
4854         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4855                 status = NT_STATUS_NO_MEMORY;
4856                 goto done;
4857         }
4858
4859         rc = smbldap_modify(smbldap_state, dn, mods);
4860
4861         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4862          * please retry" */
4863
4864         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4865
4866  done:
4867         if (NT_STATUS_IS_OK(status)) {
4868                 *rid = nextRid;
4869         }
4870
4871         TALLOC_FREE(mem_ctx);
4872         return status;
4873 }
4874
4875 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4876 {
4877         int i;
4878
4879         for (i=0; i<10; i++) {
4880                 NTSTATUS result = ldapsam_get_new_rid(
4881                         (struct ldapsam_privates *)methods->private_data, rid);
4882                 if (NT_STATUS_IS_OK(result)) {
4883                         return result;
4884                 }
4885
4886                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4887                         return result;
4888                 }
4889
4890                 /* The ldap update failed (maybe a race condition), retry */
4891         }
4892
4893         /* Tried 10 times, fail. */
4894         return NT_STATUS_ACCESS_DENIED;
4895 }
4896
4897 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4898 {
4899         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4900         return NT_STATUS_IS_OK(result) ? True : False;
4901 }
4902
4903 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
4904                               const DOM_SID *sid,
4905                               union unid_t *id, enum lsa_SidType *type)
4906 {
4907         struct ldapsam_privates *priv =
4908                 (struct ldapsam_privates *)methods->private_data;
4909         char *filter;
4910         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4911                                 NULL };
4912         LDAPMessage *result = NULL;
4913         LDAPMessage *entry = NULL;
4914         bool ret = False;
4915         char *value;
4916         int rc;
4917
4918         TALLOC_CTX *mem_ctx;
4919
4920         mem_ctx = talloc_new(NULL);
4921         if (mem_ctx == NULL) {
4922                 DEBUG(0, ("talloc_new failed\n"));
4923                 return False;
4924         }
4925
4926         filter = talloc_asprintf(mem_ctx,
4927                                  "(&(sambaSid=%s)"
4928                                  "(|(objectClass=%s)(objectClass=%s)))",
4929                                  sid_string_talloc(mem_ctx, sid),
4930                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4931         if (filter == NULL) {
4932                 DEBUG(5, ("talloc_asprintf failed\n"));
4933                 goto done;
4934         }
4935
4936         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4937                                    attrs, &result);
4938         if (rc != LDAP_SUCCESS) {
4939                 goto done;
4940         }
4941         talloc_autofree_ldapmsg(mem_ctx, result);
4942
4943         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4944                 DEBUG(10, ("Got %d entries, expected one\n",
4945                            ldap_count_entries(priv2ld(priv), result)));
4946                 goto done;
4947         }
4948
4949         entry = ldap_first_entry(priv2ld(priv), result);
4950
4951         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4952                                                 "sambaGroupType", mem_ctx);
4953
4954         if (value != NULL) {
4955                 const char *gid_str;
4956                 /* It's a group */
4957
4958                 gid_str = smbldap_talloc_single_attribute(
4959                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4960                 if (gid_str == NULL) {
4961                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4962                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4963                                                     entry)));
4964                         goto done;
4965                 }
4966
4967                 id->gid = strtoul(gid_str, NULL, 10);
4968                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4969                 ret = True;
4970                 goto done;
4971         }
4972
4973         /* It must be a user */
4974
4975         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4976                                                 "uidNumber", mem_ctx);
4977         if (value == NULL) {
4978                 DEBUG(1, ("Could not find uidNumber in %s\n",
4979                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4980                 goto done;
4981         }
4982
4983         id->uid = strtoul(value, NULL, 10);
4984         *type = SID_NAME_USER;
4985
4986         ret = True;
4987  done:
4988         TALLOC_FREE(mem_ctx);
4989         return ret;
4990 }
4991
4992 /*
4993  * The following functions is called only if
4994  * ldapsam:trusted and ldapsam:editposix are
4995  * set to true
4996  */
4997
4998 /*
4999  * ldapsam_create_user creates a new
5000  * posixAccount and sambaSamAccount object
5001  * in the ldap users subtree
5002  *
5003  * The uid is allocated by winbindd.
5004  */
5005
5006 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
5007                                     TALLOC_CTX *tmp_ctx, const char *name,
5008                                     uint32 acb_info, uint32 *rid)
5009 {
5010         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5011         LDAPMessage *entry = NULL;
5012         LDAPMessage *result = NULL;
5013         uint32 num_result;
5014         bool is_machine = False;
5015         bool add_posix = False;
5016         LDAPMod **mods = NULL;
5017         struct samu *user;
5018         char *filter;
5019         char *username;
5020         char *homedir;
5021         char *gidstr;
5022         char *uidstr;
5023         char *shell;
5024         const char *dn = NULL;
5025         DOM_SID group_sid;
5026         DOM_SID user_sid;
5027         gid_t gid = -1;
5028         uid_t uid = -1;
5029         NTSTATUS ret;
5030         int rc;
5031
5032         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
5033               acb_info & ACB_WSTRUST ||
5034               acb_info & ACB_SVRTRUST ||
5035               acb_info & ACB_DOMTRUST) {
5036                 is_machine = True;
5037         }
5038
5039         username = escape_ldap_string(talloc_tos(), name);
5040         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
5041                                  username, LDAP_OBJ_POSIXACCOUNT);
5042         TALLOC_FREE(username);
5043
5044         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5045         if (rc != LDAP_SUCCESS) {
5046                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
5047                 return NT_STATUS_ACCESS_DENIED;
5048         }
5049         talloc_autofree_ldapmsg(tmp_ctx, result);
5050
5051         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5052
5053         if (num_result > 1) {
5054                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
5055                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5056         }
5057
5058         if (num_result == 1) {
5059                 char *tmp;
5060                 /* check if it is just a posix account.
5061                  * or if there is a sid attached to this entry
5062                  */
5063
5064                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5065                 if (!entry) {
5066                         return NT_STATUS_UNSUCCESSFUL;
5067                 }
5068
5069                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5070                 if (tmp) {
5071                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5072                         return NT_STATUS_USER_EXISTS;
5073                 }
5074
5075                 /* it is just a posix account, retrieve the dn for later use */
5076                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5077                 if (!dn) {
5078                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5079                         return NT_STATUS_NO_MEMORY;
5080                 }
5081         }
5082
5083         if (num_result == 0) {
5084                 add_posix = True;
5085         }
5086
5087         /* Create the basic samu structure and generate the mods for the ldap commit */
5088         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5089                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5090                 return ret;
5091         }
5092
5093         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5094
5095         user = samu_new(tmp_ctx);
5096         if (!user) {
5097                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5098                 return NT_STATUS_NO_MEMORY;
5099         }
5100
5101         if (!pdb_set_username(user, name, PDB_SET)) {
5102                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5103                 return NT_STATUS_UNSUCCESSFUL;
5104         }
5105         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5106                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5107                 return NT_STATUS_UNSUCCESSFUL;
5108         }
5109         if (is_machine) {
5110                 if (acb_info & ACB_NORMAL) {
5111                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5112                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5113                                 return NT_STATUS_UNSUCCESSFUL;
5114                         }
5115                 } else {
5116                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5117                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5118                                 return NT_STATUS_UNSUCCESSFUL;
5119                         }
5120                 }
5121         } else {
5122                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5123                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5124                         return NT_STATUS_UNSUCCESSFUL;
5125                 }
5126         }
5127
5128         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5129                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5130                 return NT_STATUS_UNSUCCESSFUL;
5131         }
5132
5133         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
5134                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5135                 return NT_STATUS_UNSUCCESSFUL;
5136         }
5137
5138         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5139                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5140         }
5141         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5142
5143         if (add_posix) {
5144                 char *escape_name;
5145
5146                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5147
5148                 /* retrieve the Domain Users group gid */
5149                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
5150                     !sid_to_gid(&group_sid, &gid)) {
5151                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5152                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5153                 }
5154
5155                 /* lets allocate a new userid for this user */
5156                 if (!winbind_allocate_uid(&uid)) {
5157                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5158                         return NT_STATUS_UNSUCCESSFUL;
5159                 }
5160
5161
5162                 if (is_machine) {
5163                         /* TODO: choose a more appropriate default for machines */
5164                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5165                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5166                 } else {
5167                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5168                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5169                 }
5170                 uidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)uid);
5171                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5172
5173                 escape_name = escape_rdn_val_string_alloc(name);
5174                 if (!escape_name) {
5175                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5176                         return NT_STATUS_NO_MEMORY;
5177                 }
5178
5179                 if (is_machine) {
5180                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5181                 } else {
5182                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5183                 }
5184
5185                 SAFE_FREE(escape_name);
5186
5187                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5188                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5189                         return NT_STATUS_NO_MEMORY;
5190                 }
5191
5192                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5193                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5194                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5195                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5196                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5197                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5198                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5199         }
5200
5201         talloc_autofree_ldapmod(tmp_ctx, mods);
5202
5203         if (add_posix) {
5204                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5205         } else {
5206                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5207         }
5208
5209         if (rc != LDAP_SUCCESS) {
5210                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5211                 return NT_STATUS_UNSUCCESSFUL;
5212         }
5213
5214         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5215
5216         flush_pwnam_cache();
5217
5218         return NT_STATUS_OK;
5219 }
5220
5221 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5222 {
5223         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5224         LDAPMessage *result = NULL;
5225         LDAPMessage *entry = NULL;
5226         int num_result;
5227         const char *dn;
5228         char *filter;
5229         int rc;
5230
5231         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5232
5233         filter = talloc_asprintf(tmp_ctx,
5234                                  "(&(uid=%s)"
5235                                  "(objectClass=%s)"
5236                                  "(objectClass=%s))",
5237                                  pdb_get_username(sam_acct),
5238                                  LDAP_OBJ_POSIXACCOUNT,
5239                                  LDAP_OBJ_SAMBASAMACCOUNT);
5240         if (filter == NULL) {
5241                 return NT_STATUS_NO_MEMORY;
5242         }
5243
5244         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5245         if (rc != LDAP_SUCCESS) {
5246                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5247                 return NT_STATUS_UNSUCCESSFUL;
5248         }
5249         talloc_autofree_ldapmsg(tmp_ctx, result);
5250
5251         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5252
5253         if (num_result == 0) {
5254                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5255                 return NT_STATUS_NO_SUCH_USER;
5256         }
5257
5258         if (num_result > 1) {
5259                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5260                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5261         }
5262
5263         entry = ldap_first_entry(priv2ld(ldap_state), result);
5264         if (!entry) {
5265                 return NT_STATUS_UNSUCCESSFUL;
5266         }
5267
5268         /* it is just a posix account, retrieve the dn for later use */
5269         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5270         if (!dn) {
5271                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5272                 return NT_STATUS_NO_MEMORY;
5273         }
5274
5275         /* try to remove memberships first */
5276         {
5277                 NTSTATUS status;
5278                 struct dom_sid *sids = NULL;
5279                 gid_t *gids = NULL;
5280                 size_t num_groups = 0;
5281                 int i;
5282                 uint32_t user_rid = pdb_get_user_rid(sam_acct);
5283
5284                 status = ldapsam_enum_group_memberships(my_methods,
5285                                                         tmp_ctx,
5286                                                         sam_acct,
5287                                                         &sids,
5288                                                         &gids,
5289                                                         &num_groups);
5290                 if (!NT_STATUS_IS_OK(status)) {
5291                         goto delete_dn;
5292                 }
5293
5294                 for (i=0; i < num_groups; i++) {
5295
5296                         uint32_t group_rid;
5297
5298                         sid_peek_rid(&sids[i], &group_rid);
5299
5300                         ldapsam_del_groupmem(my_methods,
5301                                              tmp_ctx,
5302                                              group_rid,
5303                                              user_rid);
5304                 }
5305         }
5306
5307  delete_dn:
5308
5309         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5310         if (rc != LDAP_SUCCESS) {
5311                 return NT_STATUS_UNSUCCESSFUL;
5312         }
5313
5314         flush_pwnam_cache();
5315
5316         return NT_STATUS_OK;
5317 }
5318
5319 /*
5320  * ldapsam_create_group creates a new
5321  * posixGroup and sambaGroupMapping object
5322  * in the ldap groups subtree
5323  *
5324  * The gid is allocated by winbindd.
5325  */
5326
5327 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5328                                          TALLOC_CTX *tmp_ctx,
5329                                          const char *name,
5330                                          uint32 *rid)
5331 {
5332         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5333         NTSTATUS ret;
5334         LDAPMessage *entry = NULL;
5335         LDAPMessage *result = NULL;
5336         uint32 num_result;
5337         bool is_new_entry = False;
5338         LDAPMod **mods = NULL;
5339         char *filter;
5340         char *groupsidstr;
5341         char *groupname;
5342         char *grouptype;
5343         char *gidstr;
5344         const char *dn = NULL;
5345         DOM_SID group_sid;
5346         gid_t gid = -1;
5347         int rc;
5348
5349         groupname = escape_ldap_string(talloc_tos(), name);
5350         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5351                                  groupname, LDAP_OBJ_POSIXGROUP);
5352         TALLOC_FREE(groupname);
5353
5354         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5355         if (rc != LDAP_SUCCESS) {
5356                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5357                 return NT_STATUS_UNSUCCESSFUL;
5358         }
5359         talloc_autofree_ldapmsg(tmp_ctx, result);
5360
5361         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5362
5363         if (num_result > 1) {
5364                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5365                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5366         }
5367
5368         if (num_result == 1) {
5369                 char *tmp;
5370                 /* check if it is just a posix group.
5371                  * or if there is a sid attached to this entry
5372                  */
5373
5374                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5375                 if (!entry) {
5376                         return NT_STATUS_UNSUCCESSFUL;
5377                 }
5378
5379                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5380                 if (tmp) {
5381                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5382                         return NT_STATUS_GROUP_EXISTS;
5383                 }
5384
5385                 /* it is just a posix group, retrieve the gid and the dn for later use */
5386                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5387                 if (!tmp) {
5388                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5389                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5390                 }
5391
5392                 gid = strtoul(tmp, NULL, 10);
5393
5394                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5395                 if (!dn) {
5396                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5397                         return NT_STATUS_NO_MEMORY;
5398                 }
5399         }
5400
5401         if (num_result == 0) {
5402                 char *escape_name;
5403
5404                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5405
5406                 is_new_entry = True;
5407
5408                 /* lets allocate a new groupid for this group */
5409                 if (!winbind_allocate_gid(&gid)) {
5410                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5411                         return NT_STATUS_UNSUCCESSFUL;
5412                 }
5413
5414                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5415
5416                 escape_name = escape_rdn_val_string_alloc(name);
5417                 if (!escape_name) {
5418                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5419                         return NT_STATUS_NO_MEMORY;
5420                 }
5421
5422                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5423
5424                 SAFE_FREE(escape_name);
5425
5426                 if (!gidstr || !dn) {
5427                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5428                         return NT_STATUS_NO_MEMORY;
5429                 }
5430
5431                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5432                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5433                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5434         }
5435
5436         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5437                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5438                 return ret;
5439         }
5440
5441         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5442
5443         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5444                                                                &group_sid));
5445         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5446
5447         if (!groupsidstr || !grouptype) {
5448                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5449                 return NT_STATUS_NO_MEMORY;
5450         }
5451
5452         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5453         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5454         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5455         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5456         talloc_autofree_ldapmod(tmp_ctx, mods);
5457
5458         if (is_new_entry) {
5459                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5460 #if 0
5461                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5462                         /* This call may fail with rfc2307bis schema */
5463                         /* Retry adding a structural class */
5464                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5465                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5466                 }
5467 #endif
5468         } else {
5469                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5470         }
5471
5472         if (rc != LDAP_SUCCESS) {
5473                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5474                 return NT_STATUS_UNSUCCESSFUL;
5475         }
5476
5477         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5478
5479         return NT_STATUS_OK;
5480 }
5481
5482 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5483 {
5484         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5485         LDAPMessage *result = NULL;
5486         LDAPMessage *entry = NULL;
5487         int num_result;
5488         const char *dn;
5489         char *gidstr;
5490         char *filter;
5491         DOM_SID group_sid;
5492         int rc;
5493
5494         /* get the group sid */
5495         sid_compose(&group_sid, get_global_sam_sid(), rid);
5496
5497         filter = talloc_asprintf(tmp_ctx,
5498                                  "(&(sambaSID=%s)"
5499                                  "(objectClass=%s)"
5500                                  "(objectClass=%s))",
5501                                  sid_string_talloc(tmp_ctx, &group_sid),
5502                                  LDAP_OBJ_POSIXGROUP,
5503                                  LDAP_OBJ_GROUPMAP);
5504         if (filter == NULL) {
5505                 return NT_STATUS_NO_MEMORY;
5506         }
5507
5508         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5509         if (rc != LDAP_SUCCESS) {
5510                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5511                 return NT_STATUS_UNSUCCESSFUL;
5512         }
5513         talloc_autofree_ldapmsg(tmp_ctx, result);
5514
5515         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5516
5517         if (num_result == 0) {
5518                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5519                 return NT_STATUS_NO_SUCH_GROUP;
5520         }
5521
5522         if (num_result > 1) {
5523                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5524                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5525         }
5526
5527         entry = ldap_first_entry(priv2ld(ldap_state), result);
5528         if (!entry) {
5529                 return NT_STATUS_UNSUCCESSFUL;
5530         }
5531
5532         /* here it is, retrieve the dn for later use */
5533         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5534         if (!dn) {
5535                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5536                 return NT_STATUS_NO_MEMORY;
5537         }
5538
5539         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5540         if (!gidstr) {
5541                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5542                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5543         }
5544
5545         /* check no user have this group marked as primary group */
5546         filter = talloc_asprintf(tmp_ctx,
5547                                  "(&(gidNumber=%s)"
5548                                  "(objectClass=%s)"
5549                                  "(objectClass=%s))",
5550                                  gidstr,
5551                                  LDAP_OBJ_POSIXACCOUNT,
5552                                  LDAP_OBJ_SAMBASAMACCOUNT);
5553
5554         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5555         if (rc != LDAP_SUCCESS) {
5556                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5557                 return NT_STATUS_UNSUCCESSFUL;
5558         }
5559         talloc_autofree_ldapmsg(tmp_ctx, result);
5560
5561         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5562
5563         if (num_result != 0) {
5564                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5565                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5566         }
5567
5568         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5569         if (rc != LDAP_SUCCESS) {
5570                 return NT_STATUS_UNSUCCESSFUL;
5571         }
5572
5573         return NT_STATUS_OK;
5574 }
5575
5576 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5577                                         TALLOC_CTX *tmp_ctx,
5578                                         uint32 group_rid,
5579                                         uint32 member_rid,
5580                                         int modop)
5581 {
5582         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5583         LDAPMessage *entry = NULL;
5584         LDAPMessage *result = NULL;
5585         uint32 num_result;
5586         LDAPMod **mods = NULL;
5587         char *filter;
5588         char *uidstr;
5589         const char *dn = NULL;
5590         DOM_SID group_sid;
5591         DOM_SID member_sid;
5592         int rc;
5593
5594         switch (modop) {
5595         case LDAP_MOD_ADD:
5596                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5597                 break;
5598         case LDAP_MOD_DELETE:
5599                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5600                 break;
5601         default:
5602                 return NT_STATUS_UNSUCCESSFUL;
5603         }
5604
5605         /* get member sid  */
5606         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5607
5608         /* get the group sid */
5609         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5610
5611         filter = talloc_asprintf(tmp_ctx,
5612                                  "(&(sambaSID=%s)"
5613                                  "(objectClass=%s)"
5614                                  "(objectClass=%s))",
5615                                  sid_string_talloc(tmp_ctx, &member_sid),
5616                                  LDAP_OBJ_POSIXACCOUNT,
5617                                  LDAP_OBJ_SAMBASAMACCOUNT);
5618         if (filter == NULL) {
5619                 return NT_STATUS_NO_MEMORY;
5620         }
5621
5622         /* get the member uid */
5623         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5624         if (rc != LDAP_SUCCESS) {
5625                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5626                 return NT_STATUS_UNSUCCESSFUL;
5627         }
5628         talloc_autofree_ldapmsg(tmp_ctx, result);
5629
5630         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5631
5632         if (num_result == 0) {
5633                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5634                 return NT_STATUS_NO_SUCH_MEMBER;
5635         }
5636
5637         if (num_result > 1) {
5638                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5639                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5640         }
5641
5642         entry = ldap_first_entry(priv2ld(ldap_state), result);
5643         if (!entry) {
5644                 return NT_STATUS_UNSUCCESSFUL;
5645         }
5646
5647         if (modop == LDAP_MOD_DELETE) {
5648                 /* check if we are trying to remove the member from his primary group */
5649                 char *gidstr;
5650                 gid_t user_gid, group_gid;
5651
5652                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5653                 if (!gidstr) {
5654                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5655                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5656                 }
5657
5658                 user_gid = strtoul(gidstr, NULL, 10);
5659
5660                 if (!sid_to_gid(&group_sid, &group_gid)) {
5661                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5662                         return NT_STATUS_UNSUCCESSFUL;
5663                 }
5664
5665                 if (user_gid == group_gid) {
5666                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5667                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5668                 }
5669         }
5670
5671         /* here it is, retrieve the uid for later use */
5672         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5673         if (!uidstr) {
5674                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5675                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5676         }
5677
5678         filter = talloc_asprintf(tmp_ctx,
5679                                  "(&(sambaSID=%s)"
5680                                  "(objectClass=%s)"
5681                                  "(objectClass=%s))",
5682                                  sid_string_talloc(tmp_ctx, &group_sid),
5683                                  LDAP_OBJ_POSIXGROUP,
5684                                  LDAP_OBJ_GROUPMAP);
5685
5686         /* get the group */
5687         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5688         if (rc != LDAP_SUCCESS) {
5689                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5690                 return NT_STATUS_UNSUCCESSFUL;
5691         }
5692         talloc_autofree_ldapmsg(tmp_ctx, result);
5693
5694         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5695
5696         if (num_result == 0) {
5697                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5698                 return NT_STATUS_NO_SUCH_GROUP;
5699         }
5700
5701         if (num_result > 1) {
5702                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5703                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5704         }
5705
5706         entry = ldap_first_entry(priv2ld(ldap_state), result);
5707         if (!entry) {
5708                 return NT_STATUS_UNSUCCESSFUL;
5709         }
5710
5711         /* here it is, retrieve the dn for later use */
5712         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5713         if (!dn) {
5714                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5715                 return NT_STATUS_NO_MEMORY;
5716         }
5717
5718         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5719
5720         talloc_autofree_ldapmod(tmp_ctx, mods);
5721
5722         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5723         if (rc != LDAP_SUCCESS) {
5724                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5725                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5726                         return NT_STATUS_MEMBER_IN_GROUP;
5727                 }
5728                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5729                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5730                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5731                 }
5732                 return NT_STATUS_UNSUCCESSFUL;
5733         }
5734
5735         return NT_STATUS_OK;
5736 }
5737
5738 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5739                                      TALLOC_CTX *tmp_ctx,
5740                                      uint32 group_rid,
5741                                      uint32 member_rid)
5742 {
5743         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5744 }
5745 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5746                                      TALLOC_CTX *tmp_ctx,
5747                                      uint32 group_rid,
5748                                      uint32 member_rid)
5749 {
5750         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5751 }
5752
5753 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5754                                           TALLOC_CTX *mem_ctx,
5755                                           struct samu *sampass)
5756 {
5757         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5758         LDAPMessage *entry = NULL;
5759         LDAPMessage *result = NULL;
5760         uint32 num_result;
5761         LDAPMod **mods = NULL;
5762         char *filter;
5763         char *escape_username;
5764         char *gidstr;
5765         const char *dn = NULL;
5766         gid_t gid;
5767         int rc;
5768
5769         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5770
5771         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5772                 DEBUG(0,("ldapsam_set_primary_group: failed to retrieve gid from user's group SID!\n"));
5773                 return NT_STATUS_UNSUCCESSFUL;
5774         }
5775         gidstr = talloc_asprintf(mem_ctx, "%u", (unsigned int)gid);
5776         if (!gidstr) {
5777                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5778                 return NT_STATUS_NO_MEMORY;
5779         }
5780
5781         escape_username = escape_ldap_string(talloc_tos(),
5782                                              pdb_get_username(sampass));
5783         if (escape_username== NULL) {
5784                 return NT_STATUS_NO_MEMORY;
5785         }
5786
5787         filter = talloc_asprintf(mem_ctx,
5788                                  "(&(uid=%s)"
5789                                  "(objectClass=%s)"
5790                                  "(objectClass=%s))",
5791                                  escape_username,
5792                                  LDAP_OBJ_POSIXACCOUNT,
5793                                  LDAP_OBJ_SAMBASAMACCOUNT);
5794
5795         TALLOC_FREE(escape_username);
5796
5797         if (filter == NULL) {
5798                 return NT_STATUS_NO_MEMORY;
5799         }
5800
5801         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5802         if (rc != LDAP_SUCCESS) {
5803                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5804                 return NT_STATUS_UNSUCCESSFUL;
5805         }
5806         talloc_autofree_ldapmsg(mem_ctx, result);
5807
5808         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5809
5810         if (num_result == 0) {
5811                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5812                 return NT_STATUS_NO_SUCH_USER;
5813         }
5814
5815         if (num_result > 1) {
5816                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5817                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5818         }
5819
5820         entry = ldap_first_entry(priv2ld(ldap_state), result);
5821         if (!entry) {
5822                 return NT_STATUS_UNSUCCESSFUL;
5823         }
5824
5825         /* retrieve the dn for later use */
5826         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5827         if (!dn) {
5828                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5829                 return NT_STATUS_NO_MEMORY;
5830         }
5831
5832         /* remove the old one, and add the new one, this way we do not risk races */
5833         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5834
5835         if (mods == NULL) {
5836                 return NT_STATUS_OK;
5837         }
5838
5839         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5840
5841         if (rc != LDAP_SUCCESS) {
5842                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5843                          pdb_get_username(sampass), gidstr));
5844                 return NT_STATUS_UNSUCCESSFUL;
5845         }
5846
5847         flush_pwnam_cache();
5848
5849         return NT_STATUS_OK;
5850 }
5851
5852
5853 /**********************************************************************
5854  trusted domains functions
5855  *********************************************************************/
5856
5857 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
5858                            const char *domain)
5859 {
5860         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
5861                                ldap_state->domain_dn);
5862 }
5863
5864 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
5865                                   TALLOC_CTX *mem_ctx,
5866                                   const char *domain, LDAPMessage **entry)
5867 {
5868         int rc;
5869         char *filter;
5870         int scope = LDAP_SCOPE_SUBTREE;
5871         const char **attrs = NULL; /* NULL: get all attrs */
5872         int attrsonly = 0; /* 0: return values too */
5873         LDAPMessage *result = NULL;
5874         char *trusted_dn;
5875         uint32 num_result;
5876
5877         filter = talloc_asprintf(talloc_tos(),
5878                                  "(&(objectClass=%s)(sambaDomainName=%s))",
5879                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
5880
5881         trusted_dn = trusteddom_dn(ldap_state, domain);
5882         if (trusted_dn == NULL) {
5883                 return False;
5884         }
5885         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
5886                             filter, attrs, attrsonly, &result);
5887
5888         if (result != NULL) {
5889                 talloc_autofree_ldapmsg(mem_ctx, result);
5890         }
5891
5892         if (rc == LDAP_NO_SUCH_OBJECT) {
5893                 *entry = NULL;
5894                 return True;
5895         }
5896
5897         if (rc != LDAP_SUCCESS) {
5898                 return False;
5899         }
5900
5901         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5902
5903         if (num_result > 1) {
5904                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
5905                           "%s object for domain '%s'?!\n",
5906                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
5907                 return False;
5908         }
5909
5910         if (num_result == 0) {
5911                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
5912                           "%s object for domain %s.\n",
5913                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
5914                 *entry = NULL;
5915         } else {
5916                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
5917         }
5918
5919         return True;
5920 }
5921
5922 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
5923                                       const char *domain,
5924                                       char** pwd,
5925                                       DOM_SID *sid,
5926                                       time_t *pass_last_set_time)
5927 {
5928         struct ldapsam_privates *ldap_state =
5929                 (struct ldapsam_privates *)methods->private_data;
5930         LDAPMessage *entry = NULL;
5931
5932         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
5933
5934         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry) ||
5935             (entry == NULL))
5936         {
5937                 return False;
5938         }
5939
5940         /* password */
5941         if (pwd != NULL) {
5942                 char *pwd_str;
5943                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5944                                 entry, "sambaClearTextPassword", talloc_tos());
5945                 if (pwd_str == NULL) {
5946                         return False;
5947                 }
5948                 /* trusteddom_pw routines do not use talloc yet... */
5949                 *pwd = SMB_STRDUP(pwd_str);
5950                 if (*pwd == NULL) {
5951                         return False;
5952                 }
5953         }
5954
5955         /* last change time */
5956         if (pass_last_set_time != NULL) {
5957                 char *time_str;
5958                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5959                                 entry, "sambaPwdLastSet", talloc_tos());
5960                 if (time_str == NULL) {
5961                         return False;
5962                 }
5963                 *pass_last_set_time = (time_t)atol(time_str);
5964         }
5965
5966         /* domain sid */
5967         if (sid != NULL) {
5968                 char *sid_str;
5969                 DOM_SID *dom_sid;
5970                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5971                                                           entry, "sambaSID",
5972                                                           talloc_tos());
5973                 if (sid_str == NULL) {
5974                         return False;
5975                 }
5976                 dom_sid = string_sid_talloc(talloc_tos(), sid_str);
5977                 if (dom_sid == NULL) {
5978                         return False;
5979                 }
5980                 sid_copy(sid, dom_sid);
5981         }
5982
5983         return True;
5984 }
5985
5986 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
5987                                       const char* domain,
5988                                       const char* pwd,
5989                                       const DOM_SID *sid)
5990 {
5991         struct ldapsam_privates *ldap_state =
5992                 (struct ldapsam_privates *)methods->private_data;
5993         LDAPMessage *entry = NULL;
5994         LDAPMod **mods = NULL;
5995         char *prev_pwd = NULL;
5996         char *trusted_dn = NULL;
5997         int rc;
5998
5999         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
6000
6001         /*
6002          * get the current entry (if there is one) in order to put the
6003          * current password into the previous password attribute
6004          */
6005         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
6006                 return False;
6007         }
6008
6009         mods = NULL;
6010         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
6011                          LDAP_OBJ_TRUSTDOM_PASSWORD);
6012         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
6013                          domain);
6014         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
6015                          sid_string_tos(sid));
6016         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
6017                          talloc_asprintf(talloc_tos(), "%li", (long int)time(NULL)));
6018         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
6019                          "sambaClearTextPassword", pwd);
6020
6021         if (entry != NULL) {
6022                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6023                                 entry, "sambaClearTextPassword", talloc_tos());
6024                 if (prev_pwd != NULL) {
6025                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
6026                                          "sambaPreviousClearTextPassword",
6027                                          prev_pwd);
6028                 }
6029         }
6030
6031         talloc_autofree_ldapmod(talloc_tos(), mods);
6032
6033         trusted_dn = trusteddom_dn(ldap_state, domain);
6034         if (trusted_dn == NULL) {
6035                 return False;
6036         }
6037         if (entry == NULL) {
6038                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
6039         } else {
6040                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
6041         }
6042
6043         if (rc != LDAP_SUCCESS) {
6044                 DEBUG(1, ("error writing trusted domain password!\n"));
6045                 return False;
6046         }
6047
6048         return True;
6049 }
6050
6051 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
6052                                       const char *domain)
6053 {
6054         int rc;
6055         struct ldapsam_privates *ldap_state =
6056                 (struct ldapsam_privates *)methods->private_data;
6057         LDAPMessage *entry = NULL;
6058         const char *trusted_dn;
6059
6060         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
6061                 return False;
6062         }
6063
6064         if (entry == NULL) {
6065                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
6066                           "%s\n", domain));
6067                 return True;
6068         }
6069
6070         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
6071                                        entry);
6072         if (trusted_dn == NULL) {
6073                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
6074                 return False;
6075         }
6076
6077         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
6078         if (rc != LDAP_SUCCESS) {
6079                 return False;
6080         }
6081
6082         return True;
6083 }
6084
6085 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
6086                                          TALLOC_CTX *mem_ctx,
6087                                          uint32 *num_domains,
6088                                          struct trustdom_info ***domains)
6089 {
6090         int rc;
6091         struct ldapsam_privates *ldap_state =
6092                 (struct ldapsam_privates *)methods->private_data;
6093         char *filter;
6094         int scope = LDAP_SCOPE_SUBTREE;
6095         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
6096         int attrsonly = 0; /* 0: return values too */
6097         LDAPMessage *result = NULL;
6098         LDAPMessage *entry = NULL;
6099
6100         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
6101                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
6102
6103         rc = smbldap_search(ldap_state->smbldap_state,
6104                             ldap_state->domain_dn,
6105                             scope,
6106                             filter,
6107                             attrs,
6108                             attrsonly,
6109                             &result);
6110
6111         if (result != NULL) {
6112                 talloc_autofree_ldapmsg(mem_ctx, result);
6113         }
6114
6115         if (rc != LDAP_SUCCESS) {
6116                 return NT_STATUS_UNSUCCESSFUL;
6117         }
6118
6119         *num_domains = 0;
6120         if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) {
6121                 DEBUG(1, ("talloc failed\n"));
6122                 return NT_STATUS_NO_MEMORY;
6123         }
6124
6125         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6126              entry != NULL;
6127              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6128         {
6129                 char *dom_name, *dom_sid_str;
6130                 struct trustdom_info *dom_info;
6131
6132                 dom_info = TALLOC_P(*domains, struct trustdom_info);
6133                 if (dom_info == NULL) {
6134                         DEBUG(1, ("talloc failed\n"));
6135                         return NT_STATUS_NO_MEMORY;
6136                 }
6137
6138                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6139                                                            entry,
6140                                                            "sambaDomainName",
6141                                                            talloc_tos());
6142                 if (dom_name == NULL) {
6143                         DEBUG(1, ("talloc failed\n"));
6144                         return NT_STATUS_NO_MEMORY;
6145                 }
6146                 dom_info->name = dom_name;
6147
6148                 dom_sid_str = smbldap_talloc_single_attribute(
6149                                         priv2ld(ldap_state), entry, "sambaSID",
6150                                         talloc_tos());
6151                 if (dom_sid_str == NULL) {
6152                         DEBUG(1, ("talloc failed\n"));
6153                         return NT_STATUS_NO_MEMORY;
6154                 }
6155                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6156                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6157                                   dom_sid_str));
6158                         return NT_STATUS_UNSUCCESSFUL;
6159                 }
6160
6161                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6162                              domains, num_domains);
6163
6164                 if (*domains == NULL) {
6165                         DEBUG(1, ("talloc failed\n"));
6166                         return NT_STATUS_NO_MEMORY;
6167                 }
6168         }
6169
6170         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6171         return NT_STATUS_OK;
6172 }
6173
6174
6175 /**********************************************************************
6176  Housekeeping
6177  *********************************************************************/
6178
6179 static void free_private_data(void **vp)
6180 {
6181         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6182
6183         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6184
6185         if ((*ldap_state)->result != NULL) {
6186                 ldap_msgfree((*ldap_state)->result);
6187                 (*ldap_state)->result = NULL;
6188         }
6189         if ((*ldap_state)->domain_dn != NULL) {
6190                 SAFE_FREE((*ldap_state)->domain_dn);
6191         }
6192
6193         *ldap_state = NULL;
6194
6195         /* No need to free any further, as it is talloc()ed */
6196 }
6197
6198 /*********************************************************************
6199  Intitalise the parts of the pdb_methods structure that are common to
6200  all pdb_ldap modes
6201 *********************************************************************/
6202
6203 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6204 {
6205         NTSTATUS nt_status;
6206         struct ldapsam_privates *ldap_state;
6207
6208         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6209                 return nt_status;
6210         }
6211
6212         (*pdb_method)->name = "ldapsam";
6213
6214         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6215         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6216         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6217         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6218         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6219         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6220
6221         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6222         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6223         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6224         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6225         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6226         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6227         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6228
6229         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6230         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6231
6232         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6233
6234         (*pdb_method)->capabilities = ldapsam_capabilities;
6235         (*pdb_method)->new_rid = ldapsam_new_rid;
6236
6237         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6238         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6239         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6240         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6241
6242         /* TODO: Setup private data and free */
6243
6244         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
6245                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6246                 return NT_STATUS_NO_MEMORY;
6247         }
6248
6249         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6250                                  location, &ldap_state->smbldap_state);
6251
6252         if ( !NT_STATUS_IS_OK(nt_status) ) {
6253                 return nt_status;
6254         }
6255
6256         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6257                 return NT_STATUS_NO_MEMORY;
6258         }
6259
6260         (*pdb_method)->private_data = ldap_state;
6261
6262         (*pdb_method)->free_private_data = free_private_data;
6263
6264         return NT_STATUS_OK;
6265 }
6266
6267 /**********************************************************************
6268  Initialise the 'compat' mode for pdb_ldap
6269  *********************************************************************/
6270
6271 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6272 {
6273         NTSTATUS nt_status;
6274         struct ldapsam_privates *ldap_state;
6275         char *uri = talloc_strdup( NULL, location );
6276
6277         trim_char( uri, '\"', '\"' );
6278         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6279         if ( uri )
6280                 TALLOC_FREE( uri );
6281
6282         if ( !NT_STATUS_IS_OK(nt_status) ) {
6283                 return nt_status;
6284         }
6285
6286         (*pdb_method)->name = "ldapsam_compat";
6287
6288         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6289         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6290
6291         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6292
6293         return NT_STATUS_OK;
6294 }
6295
6296 /**********************************************************************
6297  Initialise the normal mode for pdb_ldap
6298  *********************************************************************/
6299
6300 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6301 {
6302         NTSTATUS nt_status;
6303         struct ldapsam_privates *ldap_state = NULL;
6304         uint32 alg_rid_base;
6305         char *alg_rid_base_string = NULL;
6306         LDAPMessage *result = NULL;
6307         LDAPMessage *entry = NULL;
6308         DOM_SID ldap_domain_sid;
6309         DOM_SID secrets_domain_sid;
6310         char *domain_sid_string = NULL;
6311         char *dn = NULL;
6312         char *uri = talloc_strdup( NULL, location );
6313
6314         trim_char( uri, '\"', '\"' );
6315         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6316         if (uri) {
6317                 TALLOC_FREE(uri);
6318         }
6319
6320         if (!NT_STATUS_IS_OK(nt_status)) {
6321                 return nt_status;
6322         }
6323
6324         (*pdb_method)->name = "ldapsam";
6325
6326         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6327         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6328         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6329         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6330         (*pdb_method)->search_users = ldapsam_search_users;
6331         (*pdb_method)->search_groups = ldapsam_search_groups;
6332         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6333
6334         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6335                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6336                 (*pdb_method)->enum_group_memberships =
6337                         ldapsam_enum_group_memberships;
6338                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6339                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6340
6341                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6342                         (*pdb_method)->create_user = ldapsam_create_user;
6343                         (*pdb_method)->delete_user = ldapsam_delete_user;
6344                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6345                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6346                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6347                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6348                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6349                 }
6350         }
6351
6352         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6353         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6354
6355         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6356
6357         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6358                                                &result,
6359                                                ldap_state->domain_name, True);
6360
6361         if ( !NT_STATUS_IS_OK(nt_status) ) {
6362                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6363                           "info, nor add one to the domain\n"));
6364                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6365                              "will be unable to allocate new users/groups, "
6366                              "and will risk BDCs having inconsistant SIDs\n"));
6367                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6368                 return NT_STATUS_OK;
6369         }
6370
6371         /* Given that the above might fail, everything below this must be
6372          * optional */
6373
6374         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6375                                  result);
6376         if (!entry) {
6377                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6378                           "entry\n"));
6379                 ldap_msgfree(result);
6380                 return NT_STATUS_UNSUCCESSFUL;
6381         }
6382
6383         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
6384         if (!dn) {
6385                 ldap_msgfree(result);
6386                 return NT_STATUS_UNSUCCESSFUL;
6387         }
6388
6389         ldap_state->domain_dn = smb_xstrdup(dn);
6390         TALLOC_FREE(dn);
6391
6392         domain_sid_string = smbldap_talloc_single_attribute(
6393                     ldap_state->smbldap_state->ldap_struct,
6394                     entry,
6395                     get_userattr_key2string(ldap_state->schema_ver,
6396                                             LDAP_ATTR_USER_SID),
6397                     talloc_tos());
6398
6399         if (domain_sid_string) {
6400                 bool found_sid;
6401                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6402                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6403                                   "read as a valid SID\n", domain_sid_string));
6404                         ldap_msgfree(result);
6405                         TALLOC_FREE(domain_sid_string);
6406                         return NT_STATUS_INVALID_PARAMETER;
6407                 }
6408                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6409                                                      &secrets_domain_sid);
6410                 if (!found_sid || !sid_equal(&secrets_domain_sid,
6411                                              &ldap_domain_sid)) {
6412                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6413                                   "%s based on pdb_ldap results %s -> %s\n",
6414                                   ldap_state->domain_name,
6415                                   sid_string_dbg(&secrets_domain_sid),
6416                                   sid_string_dbg(&ldap_domain_sid)));
6417
6418                         /* reset secrets.tdb sid */
6419                         secrets_store_domain_sid(ldap_state->domain_name,
6420                                                  &ldap_domain_sid);
6421                         DEBUG(1, ("New global sam SID: %s\n",
6422                                   sid_string_dbg(get_global_sam_sid())));
6423                 }
6424                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6425                 TALLOC_FREE(domain_sid_string);
6426         }
6427
6428         alg_rid_base_string = smbldap_talloc_single_attribute(
6429                     ldap_state->smbldap_state->ldap_struct,
6430                     entry,
6431                     get_attr_key2string( dominfo_attr_list,
6432                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6433                     talloc_tos());
6434         if (alg_rid_base_string) {
6435                 alg_rid_base = (uint32)atol(alg_rid_base_string);
6436                 if (alg_rid_base != algorithmic_rid_base()) {
6437                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6438                                   "changed since the LDAP\n"
6439                                   "database was initialised.  Aborting. \n"));
6440                         ldap_msgfree(result);
6441                         TALLOC_FREE(alg_rid_base_string);
6442                         return NT_STATUS_UNSUCCESSFUL;
6443                 }
6444                 TALLOC_FREE(alg_rid_base_string);
6445         }
6446         ldap_msgfree(result);
6447
6448         return NT_STATUS_OK;
6449 }
6450
6451 NTSTATUS pdb_ldap_init(void)
6452 {
6453         NTSTATUS nt_status;
6454         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6455                 return nt_status;
6456
6457         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6458                 return nt_status;
6459
6460         /* Let pdb_nds register backends */
6461         pdb_nds_init();
6462
6463         return NT_STATUS_OK;
6464 }