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_t 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 struct 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_t                user_rid;
 533         uint8           smblmpwd[LM_HASH_LEN],
 534                         smbntpwd[NT_HASH_LEN];
 535         bool            use_samba_attrs = True;
 536         uint32_t                acct_ctrl = 0;
 537         uint16_t                logon_divs;
 538         uint16_t                bad_password_count = 0,
 539                         logon_count = 0;
 540         uint32_t hours_len;
 541         uint8           hours[MAX_HOURS_LEN];
 542         char *temp = NULL;
 543         struct login_cache cache_entry;
 544         uint32_t                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_first_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_t)atol(temp);
 608                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 609                 }
 610         }
 611
 612         if (IS_SAM_DEFAULT(sampass, PDB_USERSID)) {
 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                 pwhist = TALLOC_ARRAY(ctx, uint8,
 919                                       pwHistLen * PW_HISTORY_ENTRY_LEN);
 920                 if (pwhist == 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_t) 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_t) 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                 struct passwd unix_pw;
1033                 bool have_uid = false;
1034                 bool have_gid = false;
1035                 struct dom_sid mapped_gsid;
1036                 const struct dom_sid *primary_gsid;
1037
1038                 ZERO_STRUCT(unix_pw);
1039
1040                 unix_pw.pw_name = username;
1041                 unix_pw.pw_passwd = discard_const_p(char, "x");
1042
1043                 temp = smbldap_talloc_single_attribute(
1044                                 priv2ld(ldap_state),
1045                                 entry,
1046                                 "uidNumber",
1047                                 ctx);
1048                 if (temp) {
1049                         /* We've got a uid, feed the cache */
1050                         unix_pw.pw_uid = strtoul(temp, NULL, 10);
1051                         have_uid = true;
1052                 }
1053                 temp = smbldap_talloc_single_attribute(
1054                                 priv2ld(ldap_state),
1055                                 entry,
1056                                 "gidNumber",
1057                                 ctx);
1058                 if (temp) {
1059                         /* We've got a uid, feed the cache */
1060                         unix_pw.pw_gid = strtoul(temp, NULL, 10);
1061                         have_gid = true;
1062                 }
1063                 unix_pw.pw_gecos = smbldap_talloc_single_attribute(
1064                                 priv2ld(ldap_state),
1065                                 entry,
1066                                 "gecos",
1067                                 ctx);
1068                 if (unix_pw.pw_gecos) {
1069                         unix_pw.pw_gecos = fullname;
1070                 }
1071                 unix_pw.pw_dir = smbldap_talloc_single_attribute(
1072                                 priv2ld(ldap_state),
1073                                 entry,
1074                                 "homeDirectory",
1075                                 ctx);
1076                 if (unix_pw.pw_dir) {
1077                         unix_pw.pw_dir = discard_const_p(char, "");
1078                 }
1079                 unix_pw.pw_shell = smbldap_talloc_single_attribute(
1080                                 priv2ld(ldap_state),
1081                                 entry,
1082                                 "loginShell",
1083                                 ctx);
1084                 if (unix_pw.pw_shell) {
1085                         unix_pw.pw_shell = discard_const_p(char, "");
1086                 }
1087
1088                 if (have_uid && have_gid) {
1089                         sampass->unix_pw = tcopy_passwd(sampass, &unix_pw);
1090                 } else {
1091                         sampass->unix_pw = Get_Pwnam_alloc(sampass, unix_pw.pw_name);
1092                 }
1093
1094                 if (sampass->unix_pw == NULL) {
1095                         DEBUG(0,("init_sam_from_ldap: Failed to find Unix account for %s\n",
1096                                  pdb_get_username(sampass)));
1097                         goto fn_exit;
1098                 }
1099
1100                 store_uid_sid_cache(pdb_get_user_sid(sampass),
1101                                     sampass->unix_pw->pw_uid);
1102                 idmap_cache_set_sid2uid(pdb_get_user_sid(sampass),
1103                                         sampass->unix_pw->pw_uid);
1104
1105                 gid_to_sid(&mapped_gsid, sampass->unix_pw->pw_gid);
1106                 primary_gsid = pdb_get_group_sid(sampass);
1107                 if (primary_gsid && sid_equal(primary_gsid, &mapped_gsid)) {
1108                         store_gid_sid_cache(primary_gsid,
1109                                             sampass->unix_pw->pw_gid);
1110                         idmap_cache_set_sid2gid(primary_gsid,
1111                                                 sampass->unix_pw->pw_gid);
1112                 }
1113         }
1114
1115         /* check the timestamp of the cache vs ldap entry */
1116         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
1117                                                             entry))) {
1118                 ret = true;
1119                 goto fn_exit;
1120         }
1121
1122         /* see if we have newer updates */
1123         if (!login_cache_read(sampass, &cache_entry)) {
1124                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
1125                            (unsigned int)pdb_get_bad_password_count(sampass),
1126                            (unsigned int)pdb_get_bad_password_time(sampass)));
1127                 ret = true;
1128                 goto fn_exit;
1129         }
1130
1131         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
1132                   (unsigned int)ldap_entry_time,
1133                   (unsigned int)cache_entry.entry_timestamp,
1134                   (unsigned int)cache_entry.bad_password_time));
1135
1136         if (ldap_entry_time > cache_entry.entry_timestamp) {
1137                 /* cache is older than directory , so
1138                    we need to delete the entry but allow the
1139                    fields to be written out */
1140                 login_cache_delentry(sampass);
1141         } else {
1142                 /* read cache in */
1143                 pdb_set_acct_ctrl(sampass,
1144                                   pdb_get_acct_ctrl(sampass) |
1145                                   (cache_entry.acct_ctrl & ACB_AUTOLOCK),
1146                                   PDB_SET);
1147                 pdb_set_bad_password_count(sampass,
1148                                            cache_entry.bad_password_count,
1149                                            PDB_SET);
1150                 pdb_set_bad_password_time(sampass,
1151                                           cache_entry.bad_password_time,
1152                                           PDB_SET);
1153         }
1154
1155         ret = true;
1156
1157   fn_exit:
1158
1159         TALLOC_FREE(ctx);
1160         return ret;
1161 }
1162
1163 /**********************************************************************
1164  Initialize the ldap db from a struct samu. Called on update.
1165  (Based on init_buffer_from_sam in pdb_tdb.c)
1166 *********************************************************************/
1167
1168 static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
1169                                 LDAPMessage *existing,
1170                                 LDAPMod *** mods, struct samu * sampass,
1171                                 bool (*need_update)(const struct samu *,
1172                                                     enum pdb_elements))
1173 {
1174         char *temp = NULL;
1175         uint32_t rid;
1176
1177         if (mods == NULL || sampass == NULL) {
1178                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
1179                 return False;
1180         }
1181
1182         *mods = NULL;
1183
1184         /*
1185          * took out adding "objectclass: sambaAccount"
1186          * do this on a per-mod basis
1187          */
1188         if (need_update(sampass, PDB_USERNAME)) {
1189                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1190                               "uid", pdb_get_username(sampass));
1191                 if (ldap_state->is_nds_ldap) {
1192                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1193                                       "cn", pdb_get_username(sampass));
1194                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1195                                       "sn", pdb_get_username(sampass));
1196                 }
1197         }
1198
1199         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
1200
1201         /* only update the RID if we actually need to */
1202         if (need_update(sampass, PDB_USERSID)) {
1203                 fstring sid_string;
1204                 const struct dom_sid *user_sid = pdb_get_user_sid(sampass);
1205
1206                 switch ( ldap_state->schema_ver ) {
1207                         case SCHEMAVER_SAMBAACCOUNT:
1208                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
1209                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1210                                                   sid_string_dbg(user_sid),
1211                                                   sid_string_dbg(
1212                                                           &ldap_state->domain_sid)));
1213                                         return False;
1214                                 }
1215                                 if (asprintf(&temp, "%i", rid) < 0) {
1216                                         return false;
1217                                 }
1218                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1219                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
1220                                         temp);
1221                                 SAFE_FREE(temp);
1222                                 break;
1223
1224                         case SCHEMAVER_SAMBASAMACCOUNT:
1225                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1226                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1227                                         sid_to_fstring(sid_string, user_sid));
1228                                 break;
1229
1230                         default:
1231                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1232                                 break;
1233                 }
1234         }
1235
1236         /* we don't need to store the primary group RID - so leaving it
1237            'free' to hang off the unix primary group makes life easier */
1238
1239         if (need_update(sampass, PDB_GROUPSID)) {
1240                 fstring sid_string;
1241                 const struct dom_sid *group_sid = pdb_get_group_sid(sampass);
1242
1243                 switch ( ldap_state->schema_ver ) {
1244                         case SCHEMAVER_SAMBAACCOUNT:
1245                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1246                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1247                                                   sid_string_dbg(group_sid),
1248                                                   sid_string_dbg(
1249                                                           &ldap_state->domain_sid)));
1250                                         return False;
1251                                 }
1252
1253                                 if (asprintf(&temp, "%i", rid) < 0) {
1254                                         return false;
1255                                 }
1256                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1257                                         get_userattr_key2string(ldap_state->schema_ver,
1258                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1259                                 SAFE_FREE(temp);
1260                                 break;
1261
1262                         case SCHEMAVER_SAMBASAMACCOUNT:
1263                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1264                                         get_userattr_key2string(ldap_state->schema_ver,
1265                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_fstring(sid_string, group_sid));
1266                                 break;
1267
1268                         default:
1269                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1270                                 break;
1271                 }
1272
1273         }
1274
1275         /* displayName, cn, and gecos should all be the same
1276          *  most easily accomplished by giving them the same OID
1277          *  gecos isn't set here b/c it should be handled by the
1278          *  add-user script
1279          *  We change displayName only and fall back to cn if
1280          *  it does not exist.
1281          */
1282
1283         if (need_update(sampass, PDB_FULLNAME))
1284                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1285                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1286                         pdb_get_fullname(sampass));
1287
1288         if (need_update(sampass, PDB_ACCTDESC))
1289                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1290                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1291                         pdb_get_acct_desc(sampass));
1292
1293         if (need_update(sampass, PDB_WORKSTATIONS))
1294                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1295                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1296                         pdb_get_workstations(sampass));
1297
1298         if (need_update(sampass, PDB_MUNGEDDIAL))
1299                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1300                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1301                         pdb_get_munged_dial(sampass));
1302
1303         if (need_update(sampass, PDB_SMBHOME))
1304                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1305                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1306                         pdb_get_homedir(sampass));
1307
1308         if (need_update(sampass, PDB_DRIVE))
1309                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1310                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1311                         pdb_get_dir_drive(sampass));
1312
1313         if (need_update(sampass, PDB_LOGONSCRIPT))
1314                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1315                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1316                         pdb_get_logon_script(sampass));
1317
1318         if (need_update(sampass, PDB_PROFILE))
1319                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1320                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1321                         pdb_get_profile_path(sampass));
1322
1323         if (asprintf(&temp, "%li", (long int)pdb_get_logon_time(sampass)) < 0) {
1324                 return false;
1325         }
1326         if (need_update(sampass, PDB_LOGONTIME))
1327                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1328                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1329         SAFE_FREE(temp);
1330
1331         if (asprintf(&temp, "%li", (long int)pdb_get_logoff_time(sampass)) < 0) {
1332                 return false;
1333         }
1334         if (need_update(sampass, PDB_LOGOFFTIME))
1335                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1336                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1337         SAFE_FREE(temp);
1338
1339         if (asprintf(&temp, "%li", (long int)pdb_get_kickoff_time(sampass)) < 0) {
1340                 return false;
1341         }
1342         if (need_update(sampass, PDB_KICKOFFTIME))
1343                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1344                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1345         SAFE_FREE(temp);
1346
1347         if (asprintf(&temp, "%li", (long int)pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
1348                 return false;
1349         }
1350         if (need_update(sampass, PDB_CANCHANGETIME))
1351                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1352                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1353         SAFE_FREE(temp);
1354
1355         if (asprintf(&temp, "%li", (long int)pdb_get_pass_must_change_time(sampass)) < 0) {
1356                 return false;
1357         }
1358         if (need_update(sampass, PDB_MUSTCHANGETIME))
1359                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1360                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1361         SAFE_FREE(temp);
1362
1363         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1364                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1365
1366                 if (need_update(sampass, PDB_LMPASSWD)) {
1367                         const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
1368                         if (lm_pw) {
1369                                 char pwstr[34];
1370                                 pdb_sethexpwd(pwstr, lm_pw,
1371                                               pdb_get_acct_ctrl(sampass));
1372                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1373                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1374                                                  pwstr);
1375                         } else {
1376                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1377                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1378                                                  NULL);
1379                         }
1380                 }
1381                 if (need_update(sampass, PDB_NTPASSWD)) {
1382                         const uchar *nt_pw = pdb_get_nt_passwd(sampass);
1383                         if (nt_pw) {
1384                                 char pwstr[34];
1385                                 pdb_sethexpwd(pwstr, nt_pw,
1386                                               pdb_get_acct_ctrl(sampass));
1387                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1388                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1389                                                  pwstr);
1390                         } else {
1391                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1392                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1393                                                  NULL);
1394                         }
1395                 }
1396
1397                 if (need_update(sampass, PDB_PWHISTORY)) {
1398                         char *pwstr = NULL;
1399                         uint32_t pwHistLen = 0;
1400                         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1401
1402                         pwstr = SMB_MALLOC_ARRAY(char, 1024);
1403                         if (!pwstr) {
1404                                 return false;
1405                         }
1406                         if (pwHistLen == 0) {
1407                                 /* Remove any password history from the LDAP store. */
1408                                 memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1409                                 pwstr[64] = '\0';
1410                         } else {
1411                                 int i;
1412                                 uint32_t currHistLen = 0;
1413                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1414                                 if (pwhist != NULL) {
1415                                         /* We can only store (1024-1/64 password history entries. */
1416                                         pwHistLen = MIN(pwHistLen, ((1024-1)/64));
1417                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1418                                                 /* Store the salt. */
1419                                                 pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1420                                                 /* Followed by the md5 hash of salt + md4 hash */
1421                                                 pdb_sethexpwd(&pwstr[(i*64)+32],
1422                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1423                                                 DEBUG(100, ("pwstr=%s\n", pwstr));
1424                                         }
1425                                 }
1426                         }
1427                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1428                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1429                                          pwstr);
1430                         SAFE_FREE(pwstr);
1431                 }
1432
1433                 if (need_update(sampass, PDB_PASSLASTSET)) {
1434                         if (asprintf(&temp, "%li",
1435                                 (long int)pdb_get_pass_last_set_time(sampass)) < 0) {
1436                                 return false;
1437                         }
1438                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1439                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1440                                 temp);
1441                         SAFE_FREE(temp);
1442                 }
1443         }
1444
1445         if (need_update(sampass, PDB_HOURS)) {
1446                 const uint8 *hours = pdb_get_hours(sampass);
1447                 if (hours) {
1448                         char hourstr[44];
1449                         pdb_sethexhours(hourstr, hours);
1450                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1451                                 existing,
1452                                 mods,
1453                                 get_userattr_key2string(ldap_state->schema_ver,
1454                                                 LDAP_ATTR_LOGON_HOURS),
1455                                 hourstr);
1456                 }
1457         }
1458
1459         if (need_update(sampass, PDB_ACCTCTRL))
1460                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1461                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1462                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1463
1464         /* password lockout cache:
1465            - If we are now autolocking or clearing, we write to ldap
1466            - If we are clearing, we delete the cache entry
1467            - If the count is > 0, we update the cache
1468
1469            This even means when autolocking, we cache, just in case the
1470            update doesn't work, and we have to cache the autolock flag */
1471
1472         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1473             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1474                 uint16_t badcount = pdb_get_bad_password_count(sampass);
1475                 time_t badtime = pdb_get_bad_password_time(sampass);
1476                 uint32_t pol;
1477                 pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &pol);
1478
1479                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1480                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1481
1482                 if ((badcount >= pol) || (badcount == 0)) {
1483                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1484                                 (unsigned int)badcount, (unsigned int)badtime));
1485                         if (asprintf(&temp, "%li", (long)badcount) < 0) {
1486                                 return false;
1487                         }
1488                         smbldap_make_mod(
1489                                 ldap_state->smbldap_state->ldap_struct,
1490                                 existing, mods,
1491                                 get_userattr_key2string(
1492                                         ldap_state->schema_ver,
1493                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1494                                 temp);
1495                         SAFE_FREE(temp);
1496
1497                         if (asprintf(&temp, "%li", (long int)badtime) < 0) {
1498                                 return false;
1499                         }
1500                         smbldap_make_mod(
1501                                 ldap_state->smbldap_state->ldap_struct,
1502                                 existing, mods,
1503                                 get_userattr_key2string(
1504                                         ldap_state->schema_ver,
1505                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1506                                 temp);
1507                         SAFE_FREE(temp);
1508                 }
1509                 if (badcount == 0) {
1510                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1511                         login_cache_delentry(sampass);
1512                 } else {
1513                         struct login_cache cache_entry;
1514
1515                         cache_entry.entry_timestamp = time(NULL);
1516                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1517                         cache_entry.bad_password_count = badcount;
1518                         cache_entry.bad_password_time = badtime;
1519
1520                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1521                         login_cache_write(sampass, &cache_entry);
1522                 }
1523         }
1524
1525         return True;
1526 }
1527
1528 /**********************************************************************
1529  End enumeration of the LDAP password list.
1530 *********************************************************************/
1531
1532 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1533 {
1534         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1535         if (ldap_state->result) {
1536                 ldap_msgfree(ldap_state->result);
1537                 ldap_state->result = NULL;
1538         }
1539 }
1540
1541 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1542                         const char *new_attr)
1543 {
1544         int i;
1545
1546         if (new_attr == NULL) {
1547                 return;
1548         }
1549
1550         for (i=0; (*attr_list)[i] != NULL; i++) {
1551                 ;
1552         }
1553
1554         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1555                                             const char *,  i+2);
1556         SMB_ASSERT((*attr_list) != NULL);
1557         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1558         (*attr_list)[i+1] = NULL;
1559 }
1560
1561 static void ldapsam_add_unix_attributes(TALLOC_CTX *mem_ctx,
1562                                         const char ***attr_list)
1563 {
1564         append_attr(mem_ctx, attr_list, "uidNumber");
1565         append_attr(mem_ctx, attr_list, "gidNumber");
1566         append_attr(mem_ctx, attr_list, "homeDirectory");
1567         append_attr(mem_ctx, attr_list, "loginShell");
1568         append_attr(mem_ctx, attr_list, "gecos");
1569 }
1570
1571 /**********************************************************************
1572 Get struct samu entry from LDAP by username.
1573 *********************************************************************/
1574
1575 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1576 {
1577         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1578         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1579         LDAPMessage *result = NULL;
1580         LDAPMessage *entry = NULL;
1581         int count;
1582         const char ** attr_list;
1583         int rc;
1584
1585         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1586         append_attr(user, &attr_list,
1587                     get_userattr_key2string(ldap_state->schema_ver,
1588                                             LDAP_ATTR_MOD_TIMESTAMP));
1589         ldapsam_add_unix_attributes(user, &attr_list);
1590         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1591                                            attr_list);
1592         TALLOC_FREE( attr_list );
1593
1594         if ( rc != LDAP_SUCCESS )
1595                 return NT_STATUS_NO_SUCH_USER;
1596
1597         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1598
1599         if (count < 1) {
1600                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1601                 ldap_msgfree(result);
1602                 return NT_STATUS_NO_SUCH_USER;
1603         } else if (count > 1) {
1604                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1605                 ldap_msgfree(result);
1606                 return NT_STATUS_NO_SUCH_USER;
1607         }
1608
1609         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1610         if (entry) {
1611                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1612                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1613                         ldap_msgfree(result);
1614                         return NT_STATUS_NO_SUCH_USER;
1615                 }
1616                 pdb_set_backend_private_data(user, result, NULL,
1617                                              my_methods, PDB_CHANGED);
1618                 talloc_autofree_ldapmsg(user, result);
1619                 ret = NT_STATUS_OK;
1620         } else {
1621                 ldap_msgfree(result);
1622         }
1623         return ret;
1624 }
1625
1626 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1627                                    const struct dom_sid *sid, LDAPMessage **result)
1628 {
1629         int rc = -1;
1630         const char ** attr_list;
1631         uint32_t rid;
1632
1633         switch ( ldap_state->schema_ver ) {
1634                 case SCHEMAVER_SAMBASAMACCOUNT: {
1635                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1636                         if (tmp_ctx == NULL) {
1637                                 return LDAP_NO_MEMORY;
1638                         }
1639
1640                         attr_list = get_userattr_list(tmp_ctx,
1641                                                       ldap_state->schema_ver);
1642                         append_attr(tmp_ctx, &attr_list,
1643                                     get_userattr_key2string(
1644                                             ldap_state->schema_ver,
1645                                             LDAP_ATTR_MOD_TIMESTAMP));
1646                         ldapsam_add_unix_attributes(tmp_ctx, &attr_list);
1647                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1648                                                           result, attr_list);
1649                         TALLOC_FREE(tmp_ctx);
1650
1651                         if ( rc != LDAP_SUCCESS )
1652                                 return rc;
1653                         break;
1654                 }
1655
1656                 case SCHEMAVER_SAMBAACCOUNT:
1657                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1658                                 return rc;
1659                         }
1660
1661                         attr_list = get_userattr_list(NULL,
1662                                                       ldap_state->schema_ver);
1663                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1664                         TALLOC_FREE( attr_list );
1665
1666                         if ( rc != LDAP_SUCCESS )
1667                                 return rc;
1668                         break;
1669         }
1670         return rc;
1671 }
1672
1673 /**********************************************************************
1674  Get struct samu entry from LDAP by SID.
1675 *********************************************************************/
1676
1677 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1678 {
1679         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1680         LDAPMessage *result = NULL;
1681         LDAPMessage *entry = NULL;
1682         int count;
1683         int rc;
1684
1685         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1686                                           sid, &result);
1687         if (rc != LDAP_SUCCESS)
1688                 return NT_STATUS_NO_SUCH_USER;
1689
1690         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1691
1692         if (count < 1) {
1693                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
1694                           "count=%d\n", sid_string_dbg(sid), count));
1695                 ldap_msgfree(result);
1696                 return NT_STATUS_NO_SUCH_USER;
1697         }  else if (count > 1) {
1698                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
1699                           "[%s]. Failing. count=%d\n", sid_string_dbg(sid),
1700                           count));
1701                 ldap_msgfree(result);
1702                 return NT_STATUS_NO_SUCH_USER;
1703         }
1704
1705         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1706         if (!entry) {
1707                 ldap_msgfree(result);
1708                 return NT_STATUS_NO_SUCH_USER;
1709         }
1710
1711         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1712                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1713                 ldap_msgfree(result);
1714                 return NT_STATUS_NO_SUCH_USER;
1715         }
1716
1717         pdb_set_backend_private_data(user, result, NULL,
1718                                      my_methods, PDB_CHANGED);
1719         talloc_autofree_ldapmsg(user, result);
1720         return NT_STATUS_OK;
1721 }
1722
1723 /********************************************************************
1724  Do the actual modification - also change a plaintext passord if
1725  it it set.
1726 **********************************************************************/
1727
1728 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1729                                      struct samu *newpwd, char *dn,
1730                                      LDAPMod **mods, int ldap_op,
1731                                      bool (*need_update)(const struct samu *, enum pdb_elements))
1732 {
1733         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1734         int rc;
1735
1736         if (!newpwd || !dn) {
1737                 return NT_STATUS_INVALID_PARAMETER;
1738         }
1739
1740         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1741                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1742                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1743                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1744                 BerElement *ber;
1745                 struct berval *bv;
1746                 char *retoid = NULL;
1747                 struct berval *retdata = NULL;
1748                 char *utf8_password;
1749                 char *utf8_dn;
1750                 size_t converted_size;
1751                 int ret;
1752
1753                 if (!ldap_state->is_nds_ldap) {
1754
1755                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1756                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1757                                 DEBUG(2, ("ldap password change requested, but LDAP "
1758                                           "server does not support it -- ignoring\n"));
1759                                 return NT_STATUS_OK;
1760                         }
1761                 }
1762
1763                 if (!push_utf8_talloc(talloc_tos(), &utf8_password,
1764                                         pdb_get_plaintext_passwd(newpwd),
1765                                         &converted_size))
1766                 {
1767                         return NT_STATUS_NO_MEMORY;
1768                 }
1769
1770                 if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
1771                         TALLOC_FREE(utf8_password);
1772                         return NT_STATUS_NO_MEMORY;
1773                 }
1774
1775                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1776                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1777                         TALLOC_FREE(utf8_password);
1778                         TALLOC_FREE(utf8_dn);
1779                         return NT_STATUS_UNSUCCESSFUL;
1780                 }
1781
1782                 if ((ber_printf (ber, "{") < 0) ||
1783                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID,
1784                                  utf8_dn) < 0)) {
1785                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1786                                  "value <0\n"));
1787                         ber_free(ber,1);
1788                         TALLOC_FREE(utf8_dn);
1789                         TALLOC_FREE(utf8_password);
1790                         return NT_STATUS_UNSUCCESSFUL;
1791                 }
1792
1793                 if ((utf8_password != NULL) && (*utf8_password != '\0')) {
1794                         ret = ber_printf(ber, "ts}",
1795                                          LDAP_TAG_EXOP_MODIFY_PASSWD_NEW,
1796                                          utf8_password);
1797                 } else {
1798                         ret = ber_printf(ber, "}");
1799                 }
1800
1801                 if (ret < 0) {
1802                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1803                                  "value <0\n"));
1804                         ber_free(ber,1);
1805                         TALLOC_FREE(utf8_dn);
1806                         TALLOC_FREE(utf8_password);
1807                         return NT_STATUS_UNSUCCESSFUL;
1808                 }
1809
1810                 if ((rc = ber_flatten (ber, &bv))<0) {
1811                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1812                         ber_free(ber,1);
1813                         TALLOC_FREE(utf8_dn);
1814                         TALLOC_FREE(utf8_password);
1815                         return NT_STATUS_UNSUCCESSFUL;
1816                 }
1817
1818                 TALLOC_FREE(utf8_dn);
1819                 TALLOC_FREE(utf8_password);
1820                 ber_free(ber, 1);
1821
1822                 if (!ldap_state->is_nds_ldap) {
1823                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1824                                                         LDAP_EXOP_MODIFY_PASSWD,
1825                                                         bv, NULL, NULL, &retoid,
1826                                                         &retdata);
1827                 } else {
1828                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1829                                                         pdb_get_plaintext_passwd(newpwd));
1830                 }
1831                 if (rc != LDAP_SUCCESS) {
1832                         char *ld_error = NULL;
1833
1834                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1835                                 DEBUG(3, ("Could not set userPassword "
1836                                           "attribute due to an objectClass "
1837                                           "violation -- ignoring\n"));
1838                                 ber_bvfree(bv);
1839                                 return NT_STATUS_OK;
1840                         }
1841
1842                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1843                                         &ld_error);
1844                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1845                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1846                         SAFE_FREE(ld_error);
1847                         ber_bvfree(bv);
1848 #if defined(LDAP_CONSTRAINT_VIOLATION)
1849                         if (rc == LDAP_CONSTRAINT_VIOLATION)
1850                                 return NT_STATUS_PASSWORD_RESTRICTION;
1851 #endif
1852                         return NT_STATUS_UNSUCCESSFUL;
1853                 } else {
1854                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1855 #ifdef DEBUG_PASSWORD
1856                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1857 #endif
1858                         if (retdata)
1859                                 ber_bvfree(retdata);
1860                         if (retoid)
1861                                 ldap_memfree(retoid);
1862                 }
1863                 ber_bvfree(bv);
1864         }
1865
1866         if (!mods) {
1867                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1868                 /* may be password change below however */
1869         } else {
1870                 switch(ldap_op) {
1871                         case LDAP_MOD_ADD:
1872                                 if (ldap_state->is_nds_ldap) {
1873                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1874                                                         "objectclass",
1875                                                         "inetOrgPerson");
1876                                 } else {
1877                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1878                                                         "objectclass",
1879                                                         LDAP_OBJ_ACCOUNT);
1880                                 }
1881                                 rc = smbldap_add(ldap_state->smbldap_state,
1882                                                  dn, mods);
1883                                 break;
1884                         case LDAP_MOD_REPLACE:
1885                                 rc = smbldap_modify(ldap_state->smbldap_state,
1886                                                     dn ,mods);
1887                                 break;
1888                         default:
1889                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1890                                          ldap_op));
1891                                 return NT_STATUS_INVALID_PARAMETER;
1892                 }
1893
1894                 if (rc!=LDAP_SUCCESS) {
1895                         return NT_STATUS_UNSUCCESSFUL;
1896                 }
1897         }
1898
1899         return NT_STATUS_OK;
1900 }
1901
1902 /**********************************************************************
1903  Delete entry from LDAP for username.
1904 *********************************************************************/
1905
1906 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1907                                            struct samu * sam_acct)
1908 {
1909         struct ldapsam_privates *priv =
1910                 (struct ldapsam_privates *)my_methods->private_data;
1911         const char *sname;
1912         int rc;
1913         LDAPMessage *msg, *entry;
1914         NTSTATUS result = NT_STATUS_NO_MEMORY;
1915         const char **attr_list;
1916         TALLOC_CTX *mem_ctx;
1917
1918         if (!sam_acct) {
1919                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1920                 return NT_STATUS_INVALID_PARAMETER;
1921         }
1922
1923         sname = pdb_get_username(sam_acct);
1924
1925         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1926                   "LDAP.\n", sname));
1927
1928         mem_ctx = talloc_new(NULL);
1929         if (mem_ctx == NULL) {
1930                 DEBUG(0, ("talloc_new failed\n"));
1931                 goto done;
1932         }
1933
1934         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1935         if (attr_list == NULL) {
1936                 goto done;
1937         }
1938
1939         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1940
1941         if ((rc != LDAP_SUCCESS) ||
1942             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1943             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1944                 DEBUG(5, ("Could not find user %s\n", sname));
1945                 result = NT_STATUS_NO_SUCH_USER;
1946                 goto done;
1947         }
1948
1949         rc = ldapsam_delete_entry(
1950                 priv, mem_ctx, entry,
1951                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1952                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1953                 attr_list);
1954
1955         result = (rc == LDAP_SUCCESS) ?
1956                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1957
1958  done:
1959         TALLOC_FREE(mem_ctx);
1960         return result;
1961 }
1962
1963 /**********************************************************************
1964  Helper function to determine for update_sam_account whether
1965  we need LDAP modification.
1966 *********************************************************************/
1967
1968 static bool element_is_changed(const struct samu *sampass,
1969                                enum pdb_elements element)
1970 {
1971         return IS_SAM_CHANGED(sampass, element);
1972 }
1973
1974 /**********************************************************************
1975  Update struct samu.
1976 *********************************************************************/
1977
1978 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1979 {
1980         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1981         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1982         int rc = 0;
1983         char *dn;
1984         LDAPMessage *result = NULL;
1985         LDAPMessage *entry = NULL;
1986         LDAPMod **mods = NULL;
1987         const char **attr_list;
1988
1989         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1990         if (!result) {
1991                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1992                 if (pdb_get_username(newpwd) == NULL) {
1993                         return NT_STATUS_INVALID_PARAMETER;
1994                 }
1995                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1996                 TALLOC_FREE( attr_list );
1997                 if (rc != LDAP_SUCCESS) {
1998                         return NT_STATUS_UNSUCCESSFUL;
1999                 }
2000                 pdb_set_backend_private_data(newpwd, result, NULL,
2001                                              my_methods, PDB_CHANGED);
2002                 talloc_autofree_ldapmsg(newpwd, result);
2003         }
2004
2005         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
2006                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
2007                 return NT_STATUS_UNSUCCESSFUL;
2008         }
2009
2010         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
2011         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
2012         if (!dn) {
2013                 return NT_STATUS_UNSUCCESSFUL;
2014         }
2015
2016         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
2017
2018         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2019                                 element_is_changed)) {
2020                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
2021                 TALLOC_FREE(dn);
2022                 if (mods != NULL)
2023                         ldap_mods_free(mods,True);
2024                 return NT_STATUS_UNSUCCESSFUL;
2025         }
2026
2027         if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
2028             && (mods == NULL)) {
2029                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
2030                          pdb_get_username(newpwd)));
2031                 TALLOC_FREE(dn);
2032                 return NT_STATUS_OK;
2033         }
2034
2035         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
2036
2037         if (mods != NULL) {
2038                 ldap_mods_free(mods,True);
2039         }
2040
2041         TALLOC_FREE(dn);
2042
2043         /*
2044          * We need to set the backend private data to NULL here. For example
2045          * setuserinfo level 25 does a pdb_update_sam_account twice on the
2046          * same one, and with the explicit delete / add logic for attribute
2047          * values the second time we would use the wrong "old" value which
2048          * does not exist in LDAP anymore. Thus the LDAP server would refuse
2049          * the update.
2050          * The existing LDAPMessage is still being auto-freed by the
2051          * destructor.
2052          */
2053         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
2054                                      PDB_CHANGED);
2055
2056         if (!NT_STATUS_IS_OK(ret)) {
2057                 return ret;
2058         }
2059
2060         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
2061                   pdb_get_username(newpwd)));
2062         return NT_STATUS_OK;
2063 }
2064
2065 /***************************************************************************
2066  Renames a struct samu
2067  - The "rename user script" has full responsibility for changing everything
2068 ***************************************************************************/
2069
2070 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
2071                                      TALLOC_CTX *tmp_ctx,
2072                                      uint32_t group_rid,
2073                                      uint32_t member_rid);
2074
2075 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2076                                                TALLOC_CTX *mem_ctx,
2077                                                struct samu *user,
2078                                                struct dom_sid **pp_sids,
2079                                                gid_t **pp_gids,
2080                                                size_t *p_num_groups);
2081
2082 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
2083                                            struct samu *old_acct,
2084                                            const char *newname)
2085 {
2086         const char *oldname;
2087         int rc;
2088         char *rename_script = NULL;
2089         fstring oldname_lower, newname_lower;
2090
2091         if (!old_acct) {
2092                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
2093                 return NT_STATUS_INVALID_PARAMETER;
2094         }
2095         if (!newname) {
2096                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
2097                 return NT_STATUS_INVALID_PARAMETER;
2098         }
2099
2100         oldname = pdb_get_username(old_acct);
2101
2102         /* rename the posix user */
2103         rename_script = SMB_STRDUP(lp_renameuser_script());
2104         if (rename_script == NULL) {
2105                 return NT_STATUS_NO_MEMORY;
2106         }
2107
2108         if (!(*rename_script)) {
2109                 SAFE_FREE(rename_script);
2110                 return NT_STATUS_ACCESS_DENIED;
2111         }
2112
2113         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
2114                    oldname, newname));
2115
2116         /* We have to allow the account name to end with a '$'.
2117            Also, follow the semantics in _samr_create_user() and lower case the
2118            posix name but preserve the case in passdb */
2119
2120         fstrcpy( oldname_lower, oldname );
2121         strlower_m( oldname_lower );
2122         fstrcpy( newname_lower, newname );
2123         strlower_m( newname_lower );
2124         rename_script = realloc_string_sub2(rename_script,
2125                                         "%unew",
2126                                         newname_lower,
2127                                         true,
2128                                         true);
2129         if (!rename_script) {
2130                 return NT_STATUS_NO_MEMORY;
2131         }
2132         rename_script = realloc_string_sub2(rename_script,
2133                                         "%uold",
2134                                         oldname_lower,
2135                                         true,
2136                                         true);
2137         rc = smbrun(rename_script, NULL);
2138
2139         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2140                           rename_script, rc));
2141
2142         SAFE_FREE(rename_script);
2143
2144         if (rc == 0) {
2145                 smb_nscd_flush_user_cache();
2146         }
2147
2148         if (rc)
2149                 return NT_STATUS_UNSUCCESSFUL;
2150
2151         return NT_STATUS_OK;
2152 }
2153
2154 /**********************************************************************
2155  Helper function to determine for update_sam_account whether
2156  we need LDAP modification.
2157  *********************************************************************/
2158
2159 static bool element_is_set_or_changed(const struct samu *sampass,
2160                                       enum pdb_elements element)
2161 {
2162         return (IS_SAM_SET(sampass, element) ||
2163                 IS_SAM_CHANGED(sampass, element));
2164 }
2165
2166 /**********************************************************************
2167  Add struct samu to LDAP.
2168 *********************************************************************/
2169
2170 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2171 {
2172         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2173         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2174         int rc;
2175         LDAPMessage     *result = NULL;
2176         LDAPMessage     *entry  = NULL;
2177         LDAPMod         **mods = NULL;
2178         int             ldap_op = LDAP_MOD_REPLACE;
2179         uint32_t                num_result;
2180         const char      **attr_list;
2181         char *escape_user = NULL;
2182         const char      *username = pdb_get_username(newpwd);
2183         const struct dom_sid    *sid = pdb_get_user_sid(newpwd);
2184         char *filter = NULL;
2185         char *dn = NULL;
2186         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2187         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2188
2189         if (!ctx) {
2190                 return NT_STATUS_NO_MEMORY;
2191         }
2192
2193         if (!username || !*username) {
2194                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2195                 status = NT_STATUS_INVALID_PARAMETER;
2196                 goto fn_exit;
2197         }
2198
2199         /* free this list after the second search or in case we exit on failure */
2200         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2201
2202         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2203
2204         if (rc != LDAP_SUCCESS) {
2205                 goto fn_exit;
2206         }
2207
2208         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2209                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2210                          username));
2211                 goto fn_exit;
2212         }
2213         ldap_msgfree(result);
2214         result = NULL;
2215
2216         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2217                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2218                                                   sid, &result);
2219                 if (rc == LDAP_SUCCESS) {
2220                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2221                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2222                                          "already in the base, with samba "
2223                                          "attributes\n", sid_string_dbg(sid)));
2224                                 goto fn_exit;
2225                         }
2226                         ldap_msgfree(result);
2227                         result = NULL;
2228                 }
2229         }
2230
2231         /* does the entry already exist but without a samba attributes?
2232            we need to return the samba attributes here */
2233
2234         escape_user = escape_ldap_string(talloc_tos(), username);
2235         filter = talloc_strdup(attr_list, "(uid=%u)");
2236         if (!filter) {
2237                 status = NT_STATUS_NO_MEMORY;
2238                 goto fn_exit;
2239         }
2240         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2241         TALLOC_FREE(escape_user);
2242         if (!filter) {
2243                 status = NT_STATUS_NO_MEMORY;
2244                 goto fn_exit;
2245         }
2246
2247         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2248                                    filter, attr_list, &result);
2249         if ( rc != LDAP_SUCCESS ) {
2250                 goto fn_exit;
2251         }
2252
2253         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2254
2255         if (num_result > 1) {
2256                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2257                 goto fn_exit;
2258         }
2259
2260         /* Check if we need to update an existing entry */
2261         if (num_result == 1) {
2262                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2263                 ldap_op = LDAP_MOD_REPLACE;
2264                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2265                 dn = smbldap_talloc_dn(ctx, ldap_state->smbldap_state->ldap_struct, entry);
2266                 if (!dn) {
2267                         status = NT_STATUS_NO_MEMORY;
2268                         goto fn_exit;
2269                 }
2270
2271         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2272
2273                 /* There might be a SID for this account already - say an idmap entry */
2274
2275                 filter = talloc_asprintf(ctx,
2276                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2277                                  get_userattr_key2string(ldap_state->schema_ver,
2278                                          LDAP_ATTR_USER_SID),
2279                                  sid_string_talloc(ctx, sid),
2280                                  LDAP_OBJ_IDMAP_ENTRY,
2281                                  LDAP_OBJ_SID_ENTRY);
2282                 if (!filter) {
2283                         status = NT_STATUS_NO_MEMORY;
2284                         goto fn_exit;
2285                 }
2286
2287                 /* free old result before doing a new search */
2288                 if (result != NULL) {
2289                         ldap_msgfree(result);
2290                         result = NULL;
2291                 }
2292                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2293                                            filter, attr_list, &result);
2294
2295                 if ( rc != LDAP_SUCCESS ) {
2296                         goto fn_exit;
2297                 }
2298
2299                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2300
2301                 if (num_result > 1) {
2302                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2303                         goto fn_exit;
2304                 }
2305
2306                 /* Check if we need to update an existing entry */
2307                 if (num_result == 1) {
2308
2309                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2310                         ldap_op = LDAP_MOD_REPLACE;
2311                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2312                         dn = smbldap_talloc_dn (ctx, ldap_state->smbldap_state->ldap_struct, entry);
2313                         if (!dn) {
2314                                 status = NT_STATUS_NO_MEMORY;
2315                                 goto fn_exit;
2316                         }
2317                 }
2318         }
2319
2320         if (num_result == 0) {
2321                 char *escape_username;
2322                 /* Check if we need to add an entry */
2323                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2324                 ldap_op = LDAP_MOD_ADD;
2325
2326                 escape_username = escape_rdn_val_string_alloc(username);
2327                 if (!escape_username) {
2328                         status = NT_STATUS_NO_MEMORY;
2329                         goto fn_exit;
2330                 }
2331
2332                 if (username[strlen(username)-1] == '$') {
2333                         dn = talloc_asprintf(ctx,
2334                                         "uid=%s,%s",
2335                                         escape_username,
2336                                         lp_ldap_machine_suffix());
2337                 } else {
2338                         dn = talloc_asprintf(ctx,
2339                                         "uid=%s,%s",
2340                                         escape_username,
2341                                         lp_ldap_user_suffix());
2342                 }
2343
2344                 SAFE_FREE(escape_username);
2345                 if (!dn) {
2346                         status = NT_STATUS_NO_MEMORY;
2347                         goto fn_exit;
2348                 }
2349         }
2350
2351         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2352                                 element_is_set_or_changed)) {
2353                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2354                 if (mods != NULL) {
2355                         ldap_mods_free(mods, true);
2356                 }
2357                 goto fn_exit;
2358         }
2359
2360         if (mods == NULL) {
2361                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2362                 goto fn_exit;
2363         }
2364         switch ( ldap_state->schema_ver ) {
2365                 case SCHEMAVER_SAMBAACCOUNT:
2366                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2367                         break;
2368                 case SCHEMAVER_SAMBASAMACCOUNT:
2369                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2370                         break;
2371                 default:
2372                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2373                         break;
2374         }
2375
2376         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2377         if (!NT_STATUS_IS_OK(ret)) {
2378                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2379                          pdb_get_username(newpwd),dn));
2380                 ldap_mods_free(mods, true);
2381                 goto fn_exit;
2382         }
2383
2384         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2385         ldap_mods_free(mods, true);
2386
2387         status = NT_STATUS_OK;
2388
2389   fn_exit:
2390
2391         TALLOC_FREE(ctx);
2392         if (result) {
2393                 ldap_msgfree(result);
2394         }
2395         return status;
2396 }
2397
2398 /**********************************************************************
2399  *********************************************************************/
2400
2401 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2402                                      const char *filter,
2403                                      LDAPMessage ** result)
2404 {
2405         int scope = LDAP_SCOPE_SUBTREE;
2406         int rc;
2407         const char **attr_list;
2408
2409         attr_list = get_attr_list(NULL, groupmap_attr_list);
2410         rc = smbldap_search(ldap_state->smbldap_state,
2411                             lp_ldap_suffix (), scope,
2412                             filter, attr_list, 0, result);
2413         TALLOC_FREE(attr_list);
2414
2415         return rc;
2416 }
2417
2418 /**********************************************************************
2419  *********************************************************************/
2420
2421 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2422                                  GROUP_MAP *map, LDAPMessage *entry)
2423 {
2424         char *temp = NULL;
2425         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2426
2427         if (ldap_state == NULL || map == NULL || entry == NULL ||
2428                         ldap_state->smbldap_state->ldap_struct == NULL) {
2429                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2430                 TALLOC_FREE(ctx);
2431                 return false;
2432         }
2433
2434         temp = smbldap_talloc_single_attribute(
2435                         ldap_state->smbldap_state->ldap_struct,
2436                         entry,
2437                         get_attr_key2string(groupmap_attr_list,
2438                                 LDAP_ATTR_GIDNUMBER),
2439                         ctx);
2440         if (!temp) {
2441                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2442                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2443                 TALLOC_FREE(ctx);
2444                 return false;
2445         }
2446         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2447
2448         map->gid = (gid_t)atol(temp);
2449
2450         TALLOC_FREE(temp);
2451         temp = smbldap_talloc_single_attribute(
2452                         ldap_state->smbldap_state->ldap_struct,
2453                         entry,
2454                         get_attr_key2string(groupmap_attr_list,
2455                                 LDAP_ATTR_GROUP_SID),
2456                         ctx);
2457         if (!temp) {
2458                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2459                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2460                 TALLOC_FREE(ctx);
2461                 return false;
2462         }
2463
2464         if (!string_to_sid(&map->sid, temp)) {
2465                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2466                 TALLOC_FREE(ctx);
2467                 return false;
2468         }
2469
2470         TALLOC_FREE(temp);
2471         temp = smbldap_talloc_single_attribute(
2472                         ldap_state->smbldap_state->ldap_struct,
2473                         entry,
2474                         get_attr_key2string(groupmap_attr_list,
2475                                 LDAP_ATTR_GROUP_TYPE),
2476                         ctx);
2477         if (!temp) {
2478                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2479                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2480                 TALLOC_FREE(ctx);
2481                 return false;
2482         }
2483         map->sid_name_use = (enum lsa_SidType)atol(temp);
2484
2485         if ((map->sid_name_use < SID_NAME_USER) ||
2486                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2487                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2488                 TALLOC_FREE(ctx);
2489                 return false;
2490         }
2491
2492         TALLOC_FREE(temp);
2493         temp = smbldap_talloc_single_attribute(
2494                         ldap_state->smbldap_state->ldap_struct,
2495                         entry,
2496                         get_attr_key2string(groupmap_attr_list,
2497                                 LDAP_ATTR_DISPLAY_NAME),
2498                         ctx);
2499         if (!temp) {
2500                 temp = smbldap_talloc_single_attribute(
2501                                 ldap_state->smbldap_state->ldap_struct,
2502                                 entry,
2503                                 get_attr_key2string(groupmap_attr_list,
2504                                         LDAP_ATTR_CN),
2505                                 ctx);
2506                 if (!temp) {
2507                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2508 for gidNumber(%lu)\n",(unsigned long)map->gid));
2509                         TALLOC_FREE(ctx);
2510                         return false;
2511                 }
2512         }
2513         fstrcpy(map->nt_name, temp);
2514
2515         TALLOC_FREE(temp);
2516         temp = smbldap_talloc_single_attribute(
2517                         ldap_state->smbldap_state->ldap_struct,
2518                         entry,
2519                         get_attr_key2string(groupmap_attr_list,
2520                                 LDAP_ATTR_DESC),
2521                         ctx);
2522         if (!temp) {
2523                 temp = talloc_strdup(ctx, "");
2524                 if (!temp) {
2525                         TALLOC_FREE(ctx);
2526                         return false;
2527                 }
2528         }
2529         fstrcpy(map->comment, temp);
2530
2531         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2532                 store_gid_sid_cache(&map->sid, map->gid);
2533                 idmap_cache_set_sid2gid(&map->sid, map->gid);
2534         }
2535
2536         TALLOC_FREE(ctx);
2537         return true;
2538 }
2539
2540 /**********************************************************************
2541  *********************************************************************/
2542
2543 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2544                                  const char *filter,
2545                                  GROUP_MAP *map)
2546 {
2547         struct ldapsam_privates *ldap_state =
2548                 (struct ldapsam_privates *)methods->private_data;
2549         LDAPMessage *result = NULL;
2550         LDAPMessage *entry = NULL;
2551         int count;
2552
2553         if (ldapsam_search_one_group(ldap_state, filter, &result)
2554             != LDAP_SUCCESS) {
2555                 return NT_STATUS_NO_SUCH_GROUP;
2556         }
2557
2558         count = ldap_count_entries(priv2ld(ldap_state), result);
2559
2560         if (count < 1) {
2561                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2562                           "%s\n", filter));
2563                 ldap_msgfree(result);
2564                 return NT_STATUS_NO_SUCH_GROUP;
2565         }
2566
2567         if (count > 1) {
2568                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2569                           "count=%d\n", filter, count));
2570                 ldap_msgfree(result);
2571                 return NT_STATUS_NO_SUCH_GROUP;
2572         }
2573
2574         entry = ldap_first_entry(priv2ld(ldap_state), result);
2575
2576         if (!entry) {
2577                 ldap_msgfree(result);
2578                 return NT_STATUS_UNSUCCESSFUL;
2579         }
2580
2581         if (!init_group_from_ldap(ldap_state, map, entry)) {
2582                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2583                           "group filter %s\n", filter));
2584                 ldap_msgfree(result);
2585                 return NT_STATUS_NO_SUCH_GROUP;
2586         }
2587
2588         ldap_msgfree(result);
2589         return NT_STATUS_OK;
2590 }
2591
2592 /**********************************************************************
2593  *********************************************************************/
2594
2595 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2596                                  struct dom_sid sid)
2597 {
2598         char *filter = NULL;
2599         NTSTATUS status;
2600         fstring tmp;
2601
2602         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2603                 LDAP_OBJ_GROUPMAP,
2604                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2605                 sid_to_fstring(tmp, &sid)) < 0) {
2606                 return NT_STATUS_NO_MEMORY;
2607         }
2608
2609         status = ldapsam_getgroup(methods, filter, map);
2610         SAFE_FREE(filter);
2611         return status;
2612 }
2613
2614 /**********************************************************************
2615  *********************************************************************/
2616
2617 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2618                                  gid_t gid)
2619 {
2620         char *filter = NULL;
2621         NTSTATUS status;
2622
2623         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2624                 LDAP_OBJ_GROUPMAP,
2625                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2626                 (unsigned long)gid) < 0) {
2627                 return NT_STATUS_NO_MEMORY;
2628         }
2629
2630         status = ldapsam_getgroup(methods, filter, map);
2631         SAFE_FREE(filter);
2632         return status;
2633 }
2634
2635 /**********************************************************************
2636  *********************************************************************/
2637
2638 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2639                                  const char *name)
2640 {
2641         char *filter = NULL;
2642         char *escape_name = escape_ldap_string(talloc_tos(), name);
2643         NTSTATUS status;
2644
2645         if (!escape_name) {
2646                 return NT_STATUS_NO_MEMORY;
2647         }
2648
2649         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2650                 LDAP_OBJ_GROUPMAP,
2651                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2652                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2653                 escape_name) < 0) {
2654                 TALLOC_FREE(escape_name);
2655                 return NT_STATUS_NO_MEMORY;
2656         }
2657
2658         TALLOC_FREE(escape_name);
2659         status = ldapsam_getgroup(methods, filter, map);
2660         SAFE_FREE(filter);
2661         return status;
2662 }
2663
2664 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2665                                            LDAPMessage *entry,
2666                                            const struct dom_sid *domain_sid,
2667                                            uint32_t *rid)
2668 {
2669         fstring str;
2670         struct dom_sid sid;
2671
2672         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2673                                           str, sizeof(str)-1)) {
2674                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2675                 return False;
2676         }
2677
2678         if (!string_to_sid(&sid, str)) {
2679                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2680                 return False;
2681         }
2682
2683         if (sid_compare_domain(&sid, domain_sid) != 0) {
2684                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2685                            str, sid_string_dbg(domain_sid)));
2686                 return False;
2687         }
2688
2689         if (!sid_peek_rid(&sid, rid)) {
2690                 DEBUG(10, ("Could not peek into RID\n"));
2691                 return False;
2692         }
2693
2694         return True;
2695 }
2696
2697 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2698                                            TALLOC_CTX *mem_ctx,
2699                                            const struct dom_sid *group,
2700                                            uint32_t **pp_member_rids,
2701                                            size_t *p_num_members)
2702 {
2703         struct ldapsam_privates *ldap_state =
2704                 (struct ldapsam_privates *)methods->private_data;
2705         struct smbldap_state *conn = ldap_state->smbldap_state;
2706         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2707         const char *sid_attrs[] = { "sambaSID", NULL };
2708         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2709         LDAPMessage *result = NULL;
2710         LDAPMessage *entry;
2711         char *filter;
2712         char **values = NULL;
2713         char **memberuid;
2714         char *gidstr;
2715         int rc, count;
2716
2717         *pp_member_rids = NULL;
2718         *p_num_members = 0;
2719
2720         filter = talloc_asprintf(mem_ctx,
2721                                  "(&(objectClass=%s)"
2722                                  "(objectClass=%s)"
2723                                  "(sambaSID=%s))",
2724                                  LDAP_OBJ_POSIXGROUP,
2725                                  LDAP_OBJ_GROUPMAP,
2726                                  sid_string_talloc(mem_ctx, group));
2727         if (filter == NULL) {
2728                 ret = NT_STATUS_NO_MEMORY;
2729                 goto done;
2730         }
2731
2732         rc = smbldap_search(conn, lp_ldap_suffix(),
2733                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2734                             &result);
2735
2736         if (rc != LDAP_SUCCESS)
2737                 goto done;
2738
2739         talloc_autofree_ldapmsg(mem_ctx, result);
2740
2741         count = ldap_count_entries(conn->ldap_struct, result);
2742
2743         if (count > 1) {
2744                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2745                           sid_string_dbg(group)));
2746                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2747                 goto done;
2748         }
2749
2750         if (count == 0) {
2751                 ret = NT_STATUS_NO_SUCH_GROUP;
2752                 goto done;
2753         }
2754
2755         entry = ldap_first_entry(conn->ldap_struct, result);
2756         if (entry == NULL)
2757                 goto done;
2758
2759         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2760         if (!gidstr) {
2761                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2762                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2763                 goto done;
2764         }
2765
2766         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2767
2768         if ((values != NULL) && (values[0] != NULL)) {
2769
2770                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2771                 if (filter == NULL) {
2772                         ret = NT_STATUS_NO_MEMORY;
2773                         goto done;
2774                 }
2775
2776                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2777                         char *escape_memberuid;
2778
2779                         escape_memberuid = escape_ldap_string(talloc_tos(),
2780                                                               *memberuid);
2781                         if (escape_memberuid == NULL) {
2782                                 ret = NT_STATUS_NO_MEMORY;
2783                                 goto done;
2784                         }
2785
2786                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2787                         TALLOC_FREE(escape_memberuid);
2788                         if (filter == NULL) {
2789                                 ret = NT_STATUS_NO_MEMORY;
2790                                 goto done;
2791                         }
2792                 }
2793
2794                 filter = talloc_asprintf_append_buffer(filter, "))");
2795                 if (filter == NULL) {
2796                         ret = NT_STATUS_NO_MEMORY;
2797                         goto done;
2798                 }
2799
2800                 rc = smbldap_search(conn, lp_ldap_suffix(),
2801                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2802                                     &result);
2803
2804                 if (rc != LDAP_SUCCESS)
2805                         goto done;
2806
2807                 count = ldap_count_entries(conn->ldap_struct, result);
2808                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2809
2810                 talloc_autofree_ldapmsg(mem_ctx, result);
2811
2812                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2813                      entry != NULL;
2814                      entry = ldap_next_entry(conn->ldap_struct, entry))
2815                 {
2816                         char *sidstr;
2817                         struct dom_sid sid;
2818                         uint32_t rid;
2819
2820                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2821                                                                  entry, "sambaSID",
2822                                                                  mem_ctx);
2823                         if (!sidstr) {
2824                                 DEBUG(0, ("Severe DB error, %s can't miss the sambaSID"
2825                                           "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2826                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2827                                 goto done;
2828                         }
2829
2830                         if (!string_to_sid(&sid, sidstr))
2831                                 goto done;
2832
2833                         if (!sid_check_is_in_our_domain(&sid)) {
2834                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2835                                           "in our domain\n"));
2836                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2837                                 goto done;
2838                         }
2839
2840                         sid_peek_rid(&sid, &rid);
2841
2842                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2843                                                 p_num_members)) {
2844                                 ret = NT_STATUS_NO_MEMORY;
2845                                 goto done;
2846                         }
2847                 }
2848         }
2849
2850         filter = talloc_asprintf(mem_ctx,
2851                                  "(&(objectClass=%s)"
2852                                  "(gidNumber=%s))",
2853                                  LDAP_OBJ_SAMBASAMACCOUNT,
2854                                  gidstr);
2855
2856         rc = smbldap_search(conn, lp_ldap_suffix(),
2857                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2858                             &result);
2859
2860         if (rc != LDAP_SUCCESS)
2861                 goto done;
2862
2863         talloc_autofree_ldapmsg(mem_ctx, result);
2864
2865         for (entry = ldap_first_entry(conn->ldap_struct, result);
2866              entry != NULL;
2867              entry = ldap_next_entry(conn->ldap_struct, entry))
2868         {
2869                 uint32_t rid;
2870
2871                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2872                                                     entry,
2873                                                     get_global_sam_sid(),
2874                                                     &rid)) {
2875                         DEBUG(0, ("Severe DB error, %s can't miss the samba SID"                                                                "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2876                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2877                         goto done;
2878                 }
2879
2880                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2881                                         p_num_members)) {
2882                         ret = NT_STATUS_NO_MEMORY;
2883                         goto done;
2884                 }
2885         }
2886
2887         ret = NT_STATUS_OK;
2888
2889  done:
2890
2891         if (values)
2892                 ldap_value_free(values);
2893
2894         return ret;
2895 }
2896
2897 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2898                                                TALLOC_CTX *mem_ctx,
2899                                                struct samu *user,
2900                                                struct dom_sid **pp_sids,
2901                                                gid_t **pp_gids,
2902                                                size_t *p_num_groups)
2903 {
2904         struct ldapsam_privates *ldap_state =
2905                 (struct ldapsam_privates *)methods->private_data;
2906         struct smbldap_state *conn = ldap_state->smbldap_state;
2907         char *filter;
2908         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2909         char *escape_name;
2910         int rc, count;
2911         LDAPMessage *result = NULL;
2912         LDAPMessage *entry;
2913         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2914         size_t num_sids, num_gids;
2915         char *gidstr;
2916         gid_t primary_gid = -1;
2917
2918         *pp_sids = NULL;
2919         num_sids = 0;
2920
2921         if (pdb_get_username(user) == NULL) {
2922                 return NT_STATUS_INVALID_PARAMETER;
2923         }
2924
2925         escape_name = escape_ldap_string(talloc_tos(), pdb_get_username(user));
2926         if (escape_name == NULL)
2927                 return NT_STATUS_NO_MEMORY;
2928
2929         if (user->unix_pw) {
2930                 primary_gid = user->unix_pw->pw_gid;
2931         } else {
2932                 /* retrieve the users primary gid */
2933                 filter = talloc_asprintf(mem_ctx,
2934                                          "(&(objectClass=%s)(uid=%s))",
2935                                          LDAP_OBJ_SAMBASAMACCOUNT,
2936                                          escape_name);
2937                 if (filter == NULL) {
2938                         ret = NT_STATUS_NO_MEMORY;
2939                         goto done;
2940                 }
2941
2942                 rc = smbldap_search(conn, lp_ldap_suffix(),
2943                                     LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2944
2945                 if (rc != LDAP_SUCCESS)
2946                         goto done;
2947
2948                 talloc_autofree_ldapmsg(mem_ctx, result);
2949
2950                 count = ldap_count_entries(priv2ld(ldap_state), result);
2951
2952                 switch (count) {
2953                 case 0:
2954                         DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2955                         ret = NT_STATUS_NO_SUCH_USER;
2956                         goto done;
2957                 case 1:
2958                         entry = ldap_first_entry(priv2ld(ldap_state), result);
2959
2960                         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2961                         if (!gidstr) {
2962                                 DEBUG (1, ("Unable to find the member's gid!\n"));
2963                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2964                                 goto done;
2965                         }
2966                         primary_gid = strtoul(gidstr, NULL, 10);
2967                         break;
2968                 default:
2969                         DEBUG(1, ("found more than one account with the same user name ?!\n"));
2970                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2971                         goto done;
2972                 }
2973         }
2974
2975         filter = talloc_asprintf(mem_ctx,
2976                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%u)))",
2977                                  LDAP_OBJ_POSIXGROUP, escape_name, (unsigned int)primary_gid);
2978         if (filter == NULL) {
2979                 ret = NT_STATUS_NO_MEMORY;
2980                 goto done;
2981         }
2982
2983         rc = smbldap_search(conn, lp_ldap_suffix(),
2984                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2985
2986         if (rc != LDAP_SUCCESS)
2987                 goto done;
2988
2989         talloc_autofree_ldapmsg(mem_ctx, result);
2990
2991         num_gids = 0;
2992         *pp_gids = NULL;
2993
2994         num_sids = 0;
2995         *pp_sids = NULL;
2996
2997         /* We need to add the primary group as the first gid/sid */
2998
2999         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
3000                 ret = NT_STATUS_NO_MEMORY;
3001                 goto done;
3002         }
3003
3004         /* This sid will be replaced later */
3005
3006         ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
3007                                       &num_sids);
3008         if (!NT_STATUS_IS_OK(ret)) {
3009                 goto done;
3010         }
3011
3012         for (entry = ldap_first_entry(conn->ldap_struct, result);
3013              entry != NULL;
3014              entry = ldap_next_entry(conn->ldap_struct, entry))
3015         {
3016                 fstring str;
3017                 struct dom_sid sid;
3018                 gid_t gid;
3019                 char *end;
3020
3021                 if (!smbldap_get_single_attribute(conn->ldap_struct,
3022                                                   entry, "sambaSID",
3023                                                   str, sizeof(str)-1))
3024                         continue;
3025
3026                 if (!string_to_sid(&sid, str))
3027                         goto done;
3028
3029                 if (!smbldap_get_single_attribute(conn->ldap_struct,
3030                                                   entry, "gidNumber",
3031                                                   str, sizeof(str)-1))
3032                         continue;
3033
3034                 gid = strtoul(str, &end, 10);
3035
3036                 if (PTR_DIFF(end, str) != strlen(str))
3037                         goto done;
3038
3039                 if (gid == primary_gid) {
3040                         sid_copy(&(*pp_sids)[0], &sid);
3041                 } else {
3042                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
3043                                                 &num_gids)) {
3044                                 ret = NT_STATUS_NO_MEMORY;
3045                                 goto done;
3046                         }
3047                         ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
3048                                                       &num_sids);
3049                         if (!NT_STATUS_IS_OK(ret)) {
3050                                 goto done;
3051                         }
3052                 }
3053         }
3054
3055         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
3056                 DEBUG(3, ("primary group of [%s] not found\n",
3057                           pdb_get_username(user)));
3058                 goto done;
3059         }
3060
3061         *p_num_groups = num_sids;
3062
3063         ret = NT_STATUS_OK;
3064
3065  done:
3066
3067         TALLOC_FREE(escape_name);
3068         return ret;
3069 }
3070
3071 /**********************************************************************
3072  * Augment a posixGroup object with a sambaGroupMapping domgroup
3073  *********************************************************************/
3074
3075 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
3076                                        struct ldapsam_privates *ldap_state,
3077                                        GROUP_MAP *map)
3078 {
3079         const char *filter, *dn;
3080         LDAPMessage *msg, *entry;
3081         LDAPMod **mods;
3082         int rc;
3083
3084         filter = talloc_asprintf(mem_ctx,
3085                                  "(&(objectClass=%s)(gidNumber=%u))",
3086                                  LDAP_OBJ_POSIXGROUP, (unsigned int)map->gid);
3087         if (filter == NULL) {
3088                 return NT_STATUS_NO_MEMORY;
3089         }
3090
3091         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3092                                    get_attr_list(mem_ctx, groupmap_attr_list),
3093                                    &msg);
3094         talloc_autofree_ldapmsg(mem_ctx, msg);
3095
3096         if ((rc != LDAP_SUCCESS) ||
3097             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3098             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3099                 return NT_STATUS_NO_SUCH_GROUP;
3100         }
3101
3102         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3103         if (dn == NULL) {
3104                 return NT_STATUS_NO_MEMORY;
3105         }
3106
3107         mods = NULL;
3108         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3109                         LDAP_OBJ_GROUPMAP);
3110         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3111                          sid_string_talloc(mem_ctx, &map->sid));
3112         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3113                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3114         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3115                          map->nt_name);
3116         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3117                          map->comment);
3118         talloc_autofree_ldapmod(mem_ctx, mods);
3119
3120         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3121         if (rc != LDAP_SUCCESS) {
3122                 return NT_STATUS_ACCESS_DENIED;
3123         }
3124
3125         return NT_STATUS_OK;
3126 }
3127
3128 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3129                                                 GROUP_MAP *map)
3130 {
3131         struct ldapsam_privates *ldap_state =
3132                 (struct ldapsam_privates *)methods->private_data;
3133         LDAPMessage *msg = NULL;
3134         LDAPMod **mods = NULL;
3135         const char *attrs[] = { NULL };
3136         char *filter;
3137
3138         char *dn;
3139         TALLOC_CTX *mem_ctx;
3140         NTSTATUS result;
3141
3142         struct dom_sid sid;
3143
3144         int rc;
3145
3146         mem_ctx = talloc_new(NULL);
3147         if (mem_ctx == NULL) {
3148                 DEBUG(0, ("talloc_new failed\n"));
3149                 return NT_STATUS_NO_MEMORY;
3150         }
3151
3152         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3153                                  sid_string_talloc(mem_ctx, &map->sid));
3154         if (filter == NULL) {
3155                 result = NT_STATUS_NO_MEMORY;
3156                 goto done;
3157         }
3158
3159         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3160                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3161         talloc_autofree_ldapmsg(mem_ctx, msg);
3162
3163         if ((rc == LDAP_SUCCESS) &&
3164             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3165
3166                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3167                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3168                 result = NT_STATUS_GROUP_EXISTS;
3169                 goto done;
3170         }
3171
3172         switch (map->sid_name_use) {
3173
3174         case SID_NAME_DOM_GRP:
3175                 /* To map a domain group we need to have a posix group
3176                    to attach to. */
3177                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3178                 goto done;
3179                 break;
3180
3181         case SID_NAME_ALIAS:
3182                 if (!sid_check_is_in_our_domain(&map->sid)
3183                         && !sid_check_is_in_builtin(&map->sid) )
3184                 {
3185                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3186                                   sid_string_dbg(&map->sid)));
3187                         result = NT_STATUS_INVALID_PARAMETER;
3188                         goto done;
3189                 }
3190                 break;
3191
3192         default:
3193                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3194                           sid_type_lookup(map->sid_name_use)));
3195                 result = NT_STATUS_INVALID_PARAMETER;
3196                 goto done;
3197         }
3198
3199         /* Domain groups have been mapped in a separate routine, we have to
3200          * create an alias now */
3201
3202         if (map->gid == -1) {
3203                 DEBUG(10, ("Refusing to map gid==-1\n"));
3204                 result = NT_STATUS_INVALID_PARAMETER;
3205                 goto done;
3206         }
3207
3208         if (pdb_gid_to_sid(map->gid, &sid)) {
3209                 DEBUG(3, ("Gid %u is already mapped to SID %s, refusing to "
3210                           "add\n", (unsigned int)map->gid, sid_string_dbg(&sid)));
3211                 result = NT_STATUS_GROUP_EXISTS;
3212                 goto done;
3213         }
3214
3215         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3216          * the best we can get out of LDAP. */
3217
3218         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3219                              sid_string_talloc(mem_ctx, &map->sid),
3220                              lp_ldap_group_suffix());
3221         if (dn == NULL) {
3222                 result = NT_STATUS_NO_MEMORY;
3223                 goto done;
3224         }
3225
3226         mods = NULL;
3227
3228         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3229                          LDAP_OBJ_SID_ENTRY);
3230         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3231                          LDAP_OBJ_GROUPMAP);
3232         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3233                          sid_string_talloc(mem_ctx, &map->sid));
3234         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3235                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3236         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3237                          map->nt_name);
3238         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3239                          map->comment);
3240         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3241                          talloc_asprintf(mem_ctx, "%u", (unsigned int)map->gid));
3242         talloc_autofree_ldapmod(mem_ctx, mods);
3243
3244         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3245
3246         result = (rc == LDAP_SUCCESS) ?
3247                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3248
3249  done:
3250         TALLOC_FREE(mem_ctx);
3251         return result;
3252 }
3253
3254 /**********************************************************************
3255  * Update a group mapping entry. We're quite strict about what can be changed:
3256  * Only the description and displayname may be changed. It simply does not
3257  * make any sense to change the SID, gid or the type in a mapping.
3258  *********************************************************************/
3259
3260 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3261                                                    GROUP_MAP *map)
3262 {
3263         struct ldapsam_privates *ldap_state =
3264                 (struct ldapsam_privates *)methods->private_data;
3265         int rc;
3266         const char *filter, *dn;
3267         LDAPMessage *msg = NULL;
3268         LDAPMessage *entry = NULL;
3269         LDAPMod **mods = NULL;
3270         TALLOC_CTX *mem_ctx;
3271         NTSTATUS result;
3272
3273         mem_ctx = talloc_new(NULL);
3274         if (mem_ctx == NULL) {
3275                 DEBUG(0, ("talloc_new failed\n"));
3276                 return NT_STATUS_NO_MEMORY;
3277         }
3278
3279         /* Make 100% sure that sid, gid and type are not changed by looking up
3280          * exactly the values we're given in LDAP. */
3281
3282         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3283                                  "(sambaSid=%s)(gidNumber=%u)"
3284                                  "(sambaGroupType=%d))",
3285                                  LDAP_OBJ_GROUPMAP,
3286                                  sid_string_talloc(mem_ctx, &map->sid),
3287                                  (unsigned int)map->gid, map->sid_name_use);
3288         if (filter == NULL) {
3289                 result = NT_STATUS_NO_MEMORY;
3290                 goto done;
3291         }
3292
3293         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3294                                    get_attr_list(mem_ctx, groupmap_attr_list),
3295                                    &msg);
3296         talloc_autofree_ldapmsg(mem_ctx, msg);
3297
3298         if ((rc != LDAP_SUCCESS) ||
3299             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3300             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3301                 result = NT_STATUS_NO_SUCH_GROUP;
3302                 goto done;
3303         }
3304
3305         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3306
3307         if (dn == NULL) {
3308                 result = NT_STATUS_NO_MEMORY;
3309                 goto done;
3310         }
3311
3312         mods = NULL;
3313         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3314                          map->nt_name);
3315         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3316                          map->comment);
3317         talloc_autofree_ldapmod(mem_ctx, mods);
3318
3319         if (mods == NULL) {
3320                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3321                           "nothing to do\n"));
3322                 result = NT_STATUS_OK;
3323                 goto done;
3324         }
3325
3326         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3327
3328         if (rc != LDAP_SUCCESS) {
3329                 result = NT_STATUS_ACCESS_DENIED;
3330                 goto done;
3331         }
3332
3333         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3334                   "group %lu in LDAP\n", (unsigned long)map->gid));
3335
3336         result = NT_STATUS_OK;
3337
3338  done:
3339         TALLOC_FREE(mem_ctx);
3340         return result;
3341 }
3342
3343 /**********************************************************************
3344  *********************************************************************/
3345
3346 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3347                                                    struct dom_sid sid)
3348 {
3349         struct ldapsam_privates *priv =
3350                 (struct ldapsam_privates *)methods->private_data;
3351         LDAPMessage *msg, *entry;
3352         int rc;
3353         NTSTATUS result;
3354         TALLOC_CTX *mem_ctx;
3355         char *filter;
3356
3357         mem_ctx = talloc_new(NULL);
3358         if (mem_ctx == NULL) {
3359                 DEBUG(0, ("talloc_new failed\n"));
3360                 return NT_STATUS_NO_MEMORY;
3361         }
3362
3363         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3364                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3365                                  sid_string_talloc(mem_ctx, &sid));
3366         if (filter == NULL) {
3367                 result = NT_STATUS_NO_MEMORY;
3368                 goto done;
3369         }
3370         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3371                                    get_attr_list(mem_ctx, groupmap_attr_list),
3372                                    &msg);
3373         talloc_autofree_ldapmsg(mem_ctx, msg);
3374
3375         if ((rc != LDAP_SUCCESS) ||
3376             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3377             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3378                 result = NT_STATUS_NO_SUCH_GROUP;
3379                 goto done;
3380         }
3381
3382         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3383                                   get_attr_list(mem_ctx,
3384                                                 groupmap_attr_list_to_delete));
3385
3386         if ((rc == LDAP_NAMING_VIOLATION) ||
3387             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3388             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3389                 const char *attrs[] = { "sambaGroupType", "description",
3390                                         "displayName", "sambaSIDList",
3391                                         NULL };
3392
3393                 /* Second try. Don't delete the sambaSID attribute, this is
3394                    for "old" entries that are tacked on a winbind
3395                    sambaIdmapEntry. */
3396
3397                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3398                                           LDAP_OBJ_GROUPMAP, attrs);
3399         }
3400
3401         if ((rc == LDAP_NAMING_VIOLATION) ||
3402             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3403             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3404                 const char *attrs[] = { "sambaGroupType", "description",
3405                                         "displayName", "sambaSIDList",
3406                                         "gidNumber", NULL };
3407
3408                 /* Third try. This is a post-3.0.21 alias (containing only
3409                  * sambaSidEntry and sambaGroupMapping classes), we also have
3410                  * to delete the gidNumber attribute, only the sambaSidEntry
3411                  * remains */
3412
3413                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3414                                           LDAP_OBJ_GROUPMAP, attrs);
3415         }
3416
3417         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3418
3419  done:
3420         TALLOC_FREE(mem_ctx);
3421         return result;
3422  }
3423
3424 /**********************************************************************
3425  *********************************************************************/
3426
3427 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3428                                     bool update)
3429 {
3430         struct ldapsam_privates *ldap_state =
3431                 (struct ldapsam_privates *)my_methods->private_data;
3432         char *filter = NULL;
3433         int rc;
3434         const char **attr_list;
3435
3436         filter = talloc_asprintf(NULL, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3437         if (!filter) {
3438                 return NT_STATUS_NO_MEMORY;
3439         }
3440         attr_list = get_attr_list( NULL, groupmap_attr_list );
3441         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3442                             LDAP_SCOPE_SUBTREE, filter,
3443                             attr_list, 0, &ldap_state->result);
3444         TALLOC_FREE(attr_list);
3445
3446         if (rc != LDAP_SUCCESS) {
3447                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3448                           ldap_err2string(rc)));
3449                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3450                           lp_ldap_suffix(), filter));
3451                 ldap_msgfree(ldap_state->result);
3452                 ldap_state->result = NULL;
3453                 TALLOC_FREE(filter);
3454                 return NT_STATUS_UNSUCCESSFUL;
3455         }
3456
3457         TALLOC_FREE(filter);
3458
3459         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3460                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3461                                      ldap_state->result)));
3462
3463         ldap_state->entry =
3464                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3465                                  ldap_state->result);
3466         ldap_state->index = 0;
3467
3468         return NT_STATUS_OK;
3469 }
3470
3471 /**********************************************************************
3472  *********************************************************************/
3473
3474 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3475 {
3476         ldapsam_endsampwent(my_methods);
3477 }
3478
3479 /**********************************************************************
3480  *********************************************************************/
3481
3482 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3483                                     GROUP_MAP *map)
3484 {
3485         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3486         struct ldapsam_privates *ldap_state =
3487                 (struct ldapsam_privates *)my_methods->private_data;
3488         bool bret = False;
3489
3490         while (!bret) {
3491                 if (!ldap_state->entry)
3492                         return ret;
3493
3494                 ldap_state->index++;
3495                 bret = init_group_from_ldap(ldap_state, map,
3496                                             ldap_state->entry);
3497
3498                 ldap_state->entry =
3499                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3500                                         ldap_state->entry);
3501         }
3502
3503         return NT_STATUS_OK;
3504 }
3505
3506 /**********************************************************************
3507  *********************************************************************/
3508
3509 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3510                                            const struct dom_sid *domsid, enum lsa_SidType sid_name_use,
3511                                            GROUP_MAP **pp_rmap,
3512                                            size_t *p_num_entries,
3513                                            bool unix_only)
3514 {
3515         GROUP_MAP map;
3516         size_t entries = 0;
3517
3518         *p_num_entries = 0;
3519         *pp_rmap = NULL;
3520
3521         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3522                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3523                           "passdb\n"));
3524                 return NT_STATUS_ACCESS_DENIED;
3525         }
3526
3527         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3528                 if (sid_name_use != SID_NAME_UNKNOWN &&
3529                     sid_name_use != map.sid_name_use) {
3530                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3531                                   "not of the requested type\n", map.nt_name));
3532                         continue;
3533                 }
3534                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3535                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3536                                   "non mapped\n", map.nt_name));
3537                         continue;
3538                 }
3539
3540                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3541                 if (!(*pp_rmap)) {
3542                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3543                                  "enlarge group map!\n"));
3544                         return NT_STATUS_UNSUCCESSFUL;
3545                 }
3546
3547                 (*pp_rmap)[entries] = map;
3548
3549                 entries += 1;
3550
3551         }
3552         ldapsam_endsamgrent(methods);
3553
3554         *p_num_entries = entries;
3555
3556         return NT_STATUS_OK;
3557 }
3558
3559 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3560                                         const struct dom_sid *alias,
3561                                         const struct dom_sid *member,
3562                                         int modop)
3563 {
3564         struct ldapsam_privates *ldap_state =
3565                 (struct ldapsam_privates *)methods->private_data;
3566         char *dn = NULL;
3567         LDAPMessage *result = NULL;
3568         LDAPMessage *entry = NULL;
3569         int count;
3570         LDAPMod **mods = NULL;
3571         int rc;
3572         enum lsa_SidType type = SID_NAME_USE_NONE;
3573         fstring tmp;
3574
3575         char *filter = NULL;
3576
3577         if (sid_check_is_in_builtin(alias)) {
3578                 type = SID_NAME_ALIAS;
3579         }
3580
3581         if (sid_check_is_in_our_domain(alias)) {
3582                 type = SID_NAME_ALIAS;
3583         }
3584
3585         if (type == SID_NAME_USE_NONE) {
3586                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3587                           sid_string_dbg(alias)));
3588                 return NT_STATUS_NO_SUCH_ALIAS;
3589         }
3590
3591         if (asprintf(&filter,
3592                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3593                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3594                      type) < 0) {
3595                 return NT_STATUS_NO_MEMORY;
3596         }
3597
3598         if (ldapsam_search_one_group(ldap_state, filter,
3599                                      &result) != LDAP_SUCCESS) {
3600                 SAFE_FREE(filter);
3601                 return NT_STATUS_NO_SUCH_ALIAS;
3602         }
3603
3604         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3605                                    result);
3606
3607         if (count < 1) {
3608                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3609                 ldap_msgfree(result);
3610                 SAFE_FREE(filter);
3611                 return NT_STATUS_NO_SUCH_ALIAS;
3612         }
3613
3614         if (count > 1) {
3615                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3616                           "filter %s: count=%d\n", filter, count));
3617                 ldap_msgfree(result);
3618                 SAFE_FREE(filter);
3619                 return NT_STATUS_NO_SUCH_ALIAS;
3620         }
3621
3622         SAFE_FREE(filter);
3623
3624         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3625                                  result);
3626
3627         if (!entry) {
3628                 ldap_msgfree(result);
3629                 return NT_STATUS_UNSUCCESSFUL;
3630         }
3631
3632         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
3633         if (!dn) {
3634                 ldap_msgfree(result);
3635                 return NT_STATUS_UNSUCCESSFUL;
3636         }
3637
3638         smbldap_set_mod(&mods, modop,
3639                         get_attr_key2string(groupmap_attr_list,
3640                                             LDAP_ATTR_SID_LIST),
3641                         sid_to_fstring(tmp, member));
3642
3643         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3644
3645         ldap_mods_free(mods, True);
3646         ldap_msgfree(result);
3647         TALLOC_FREE(dn);
3648
3649         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3650                 return NT_STATUS_MEMBER_IN_ALIAS;
3651         }
3652
3653         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3654                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3655         }
3656
3657         if (rc != LDAP_SUCCESS) {
3658                 return NT_STATUS_UNSUCCESSFUL;
3659         }
3660
3661         return NT_STATUS_OK;
3662 }
3663
3664 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3665                                      const struct dom_sid *alias,
3666                                      const struct dom_sid *member)
3667 {
3668         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3669 }
3670
3671 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3672                                      const struct dom_sid *alias,
3673                                      const struct dom_sid *member)
3674 {
3675         return ldapsam_modify_aliasmem(methods, alias, member,
3676                                        LDAP_MOD_DELETE);
3677 }
3678
3679 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3680                                       const struct dom_sid *alias,
3681                                       TALLOC_CTX *mem_ctx,
3682                                       struct dom_sid **pp_members,
3683                                       size_t *p_num_members)
3684 {
3685         struct ldapsam_privates *ldap_state =
3686                 (struct ldapsam_privates *)methods->private_data;
3687         LDAPMessage *result = NULL;
3688         LDAPMessage *entry = NULL;
3689         int count;
3690         char **values = NULL;
3691         int i;
3692         char *filter = NULL;
3693         size_t num_members = 0;
3694         enum lsa_SidType type = SID_NAME_USE_NONE;
3695         fstring tmp;
3696
3697         *pp_members = NULL;
3698         *p_num_members = 0;
3699
3700         if (sid_check_is_in_builtin(alias)) {
3701                 type = SID_NAME_ALIAS;
3702         }
3703
3704         if (sid_check_is_in_our_domain(alias)) {
3705                 type = SID_NAME_ALIAS;
3706         }
3707
3708         if (type == SID_NAME_USE_NONE) {
3709                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3710                           sid_string_dbg(alias)));
3711                 return NT_STATUS_NO_SUCH_ALIAS;
3712         }
3713
3714         if (asprintf(&filter,
3715                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3716                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3717                      type) < 0) {
3718                 return NT_STATUS_NO_MEMORY;
3719         }
3720
3721         if (ldapsam_search_one_group(ldap_state, filter,
3722                                      &result) != LDAP_SUCCESS) {
3723                 SAFE_FREE(filter);
3724                 return NT_STATUS_NO_SUCH_ALIAS;
3725         }
3726
3727         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3728                                    result);
3729
3730         if (count < 1) {
3731                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3732                 ldap_msgfree(result);
3733                 SAFE_FREE(filter);
3734                 return NT_STATUS_NO_SUCH_ALIAS;
3735         }
3736
3737         if (count > 1) {
3738                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3739                           "filter %s: count=%d\n", filter, count));
3740                 ldap_msgfree(result);
3741                 SAFE_FREE(filter);
3742                 return NT_STATUS_NO_SUCH_ALIAS;
3743         }
3744
3745         SAFE_FREE(filter);
3746
3747         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3748                                  result);
3749
3750         if (!entry) {
3751                 ldap_msgfree(result);
3752                 return NT_STATUS_UNSUCCESSFUL;
3753         }
3754
3755         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3756                                  entry,
3757                                  get_attr_key2string(groupmap_attr_list,
3758                                                      LDAP_ATTR_SID_LIST));
3759
3760         if (values == NULL) {
3761                 ldap_msgfree(result);
3762                 return NT_STATUS_OK;
3763         }
3764
3765         count = ldap_count_values(values);
3766
3767         for (i=0; i<count; i++) {
3768                 struct dom_sid member;
3769                 NTSTATUS status;
3770
3771                 if (!string_to_sid(&member, values[i]))
3772                         continue;
3773
3774                 status = add_sid_to_array(mem_ctx, &member, pp_members,
3775                                           &num_members);
3776                 if (!NT_STATUS_IS_OK(status)) {
3777                         ldap_value_free(values);
3778                         ldap_msgfree(result);
3779                         return status;
3780                 }
3781         }
3782
3783         *p_num_members = num_members;
3784         ldap_value_free(values);
3785         ldap_msgfree(result);
3786
3787         return NT_STATUS_OK;
3788 }
3789
3790 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3791                                           TALLOC_CTX *mem_ctx,
3792                                           const struct dom_sid *domain_sid,
3793                                           const struct dom_sid *members,
3794                                           size_t num_members,
3795                                           uint32_t **pp_alias_rids,
3796                                           size_t *p_num_alias_rids)
3797 {
3798         struct ldapsam_privates *ldap_state =
3799                 (struct ldapsam_privates *)methods->private_data;
3800         LDAP *ldap_struct;
3801
3802         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3803
3804         LDAPMessage *result = NULL;
3805         LDAPMessage *entry = NULL;
3806         int i;
3807         int rc;
3808         char *filter;
3809         enum lsa_SidType type = SID_NAME_USE_NONE;
3810         bool is_builtin = false;
3811         bool sid_added = false;
3812
3813         *pp_alias_rids = NULL;
3814         *p_num_alias_rids = 0;
3815
3816         if (sid_check_is_builtin(domain_sid)) {
3817                 is_builtin = true;
3818                 type = SID_NAME_ALIAS;
3819         }
3820
3821         if (sid_check_is_domain(domain_sid)) {
3822                 type = SID_NAME_ALIAS;
3823         }
3824
3825         if (type == SID_NAME_USE_NONE) {
3826                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3827                           sid_string_dbg(domain_sid)));
3828                 return NT_STATUS_UNSUCCESSFUL;
3829         }
3830
3831         if (num_members == 0) {
3832                 return NT_STATUS_OK;
3833         }
3834
3835         filter = talloc_asprintf(mem_ctx,
3836                                  "(&(objectclass=%s)(sambaGroupType=%d)(|",
3837                                  LDAP_OBJ_GROUPMAP, type);
3838
3839         for (i=0; i<num_members; i++)
3840                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3841                                          filter,
3842                                          sid_string_talloc(mem_ctx,
3843                                                            &members[i]));
3844
3845         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3846
3847         if (filter == NULL) {
3848                 return NT_STATUS_NO_MEMORY;
3849         }
3850
3851         if (is_builtin &&
3852             ldap_state->search_cache.filter &&
3853             strcmp(ldap_state->search_cache.filter, filter) == 0) {
3854                 filter = talloc_move(filter, &ldap_state->search_cache.filter);
3855                 result = ldap_state->search_cache.result;
3856                 ldap_state->search_cache.result = NULL;
3857         } else {
3858                 rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3859                                     LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3860                 if (rc != LDAP_SUCCESS) {
3861                         return NT_STATUS_UNSUCCESSFUL;
3862                 }
3863                 talloc_autofree_ldapmsg(filter, result);
3864         }
3865
3866         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3867
3868         for (entry = ldap_first_entry(ldap_struct, result);
3869              entry != NULL;
3870              entry = ldap_next_entry(ldap_struct, entry))
3871         {
3872                 fstring sid_str;
3873                 struct dom_sid sid;
3874                 uint32_t rid;
3875
3876                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3877                                                   LDAP_ATTRIBUTE_SID,
3878                                                   sid_str,
3879                                                   sizeof(sid_str)-1))
3880                         continue;
3881
3882                 if (!string_to_sid(&sid, sid_str))
3883                         continue;
3884
3885                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3886                         continue;
3887
3888                 sid_added = true;
3889
3890                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3891                                         p_num_alias_rids)) {
3892                         return NT_STATUS_NO_MEMORY;
3893                 }
3894         }
3895
3896         if (!is_builtin && !sid_added) {
3897                 TALLOC_FREE(ldap_state->search_cache.filter);
3898                 /*
3899                  * Note: result is a talloc child of filter because of the
3900                  * talloc_autofree_ldapmsg() usage
3901                  */
3902                 ldap_state->search_cache.filter = talloc_move(ldap_state, &filter);
3903                 ldap_state->search_cache.result = result;
3904         }
3905
3906         return NT_STATUS_OK;
3907 }
3908
3909 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3910                                                    enum pdb_policy_type type,
3911                                                    uint32_t value)
3912 {
3913         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3914         int rc;
3915         LDAPMod **mods = NULL;
3916         fstring value_string;
3917         const char *policy_attr = NULL;
3918
3919         struct ldapsam_privates *ldap_state =
3920                 (struct ldapsam_privates *)methods->private_data;
3921
3922         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3923
3924         if (!ldap_state->domain_dn) {
3925                 return NT_STATUS_INVALID_PARAMETER;
3926         }
3927
3928         policy_attr = get_account_policy_attr(type);
3929         if (policy_attr == NULL) {
3930                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3931                          "policy\n"));
3932                 return ntstatus;
3933         }
3934
3935         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3936
3937         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3938
3939         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3940                             mods);
3941
3942         ldap_mods_free(mods, True);
3943
3944         if (rc != LDAP_SUCCESS) {
3945                 return ntstatus;
3946         }
3947
3948         if (!cache_account_policy_set(type, value)) {
3949                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3950                          "update local tdb cache\n"));
3951                 return ntstatus;
3952         }
3953
3954         return NT_STATUS_OK;
3955 }
3956
3957 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3958                                            enum pdb_policy_type type,
3959                                            uint32_t value)
3960 {
3961         return ldapsam_set_account_policy_in_ldap(methods, type,
3962                                                   value);
3963 }
3964
3965 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3966                                                      enum pdb_policy_type type,
3967                                                      uint32_t *value)
3968 {
3969         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3970         LDAPMessage *result = NULL;
3971         LDAPMessage *entry = NULL;
3972         int count;
3973         int rc;
3974         char **vals = NULL;
3975         char *filter;
3976         const char *policy_attr = NULL;
3977
3978         struct ldapsam_privates *ldap_state =
3979                 (struct ldapsam_privates *)methods->private_data;
3980
3981         const char *attrs[2];
3982
3983         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3984
3985         if (!ldap_state->domain_dn) {
3986                 return NT_STATUS_INVALID_PARAMETER;
3987         }
3988
3989         policy_attr = get_account_policy_attr(type);
3990         if (!policy_attr) {
3991                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3992                          "policy index: %d\n", type));
3993                 return ntstatus;
3994         }
3995
3996         attrs[0] = policy_attr;
3997         attrs[1] = NULL;
3998
3999         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)", LDAP_OBJ_DOMINFO);
4000         if (filter == NULL) {
4001                 return NT_STATUS_NO_MEMORY;
4002         }
4003         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
4004                             LDAP_SCOPE_BASE, filter, attrs, 0,
4005                             &result);
4006         TALLOC_FREE(filter);
4007         if (rc != LDAP_SUCCESS) {
4008                 return ntstatus;
4009         }
4010
4011         count = ldap_count_entries(priv2ld(ldap_state), result);
4012         if (count < 1) {
4013                 goto out;
4014         }
4015
4016         entry = ldap_first_entry(priv2ld(ldap_state), result);
4017         if (entry == NULL) {
4018                 goto out;
4019         }
4020
4021         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
4022         if (vals == NULL) {
4023                 goto out;
4024         }
4025
4026         *value = (uint32_t)atol(vals[0]);
4027
4028         ntstatus = NT_STATUS_OK;
4029
4030 out:
4031         if (vals)
4032                 ldap_value_free(vals);
4033         ldap_msgfree(result);
4034
4035         return ntstatus;
4036 }
4037
4038 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
4039
4040    - if user hasn't decided to use account policies inside LDAP just reuse the
4041      old tdb values
4042
4043    - if there is a valid cache entry, return that
4044    - if there is an LDAP entry, update cache and return
4045    - otherwise set to default, update cache and return
4046
4047    Guenther
4048 */
4049 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
4050                                            enum pdb_policy_type type,
4051                                            uint32_t *value)
4052 {
4053         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
4054
4055         if (cache_account_policy_get(type, value)) {
4056                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
4057                           "cache\n"));
4058                 return NT_STATUS_OK;
4059         }
4060
4061         ntstatus = ldapsam_get_account_policy_from_ldap(methods, type,
4062                                                         value);
4063         if (NT_STATUS_IS_OK(ntstatus)) {
4064                 goto update_cache;
4065         }
4066
4067         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
4068                   "ldap\n"));
4069
4070 #if 0
4071         /* should we automagically migrate old tdb value here ? */
4072         if (account_policy_get(type, value))
4073                 goto update_ldap;
4074
4075         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
4076                   "default\n", type));
4077 #endif
4078
4079         if (!account_policy_get_default(type, value)) {
4080                 return ntstatus;
4081         }
4082
4083 /* update_ldap: */
4084
4085         ntstatus = ldapsam_set_account_policy(methods, type, *value);
4086         if (!NT_STATUS_IS_OK(ntstatus)) {
4087                 return ntstatus;
4088         }
4089
4090  update_cache:
4091
4092         if (!cache_account_policy_set(type, *value)) {
4093                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
4094                          "tdb as a cache\n"));
4095                 return NT_STATUS_UNSUCCESSFUL;
4096         }
4097
4098         return NT_STATUS_OK;
4099 }
4100
4101 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
4102                                     const struct dom_sid *domain_sid,
4103                                     int num_rids,
4104                                     uint32_t *rids,
4105                                     const char **names,
4106                                     enum lsa_SidType *attrs)
4107 {
4108         struct ldapsam_privates *ldap_state =
4109                 (struct ldapsam_privates *)methods->private_data;
4110         LDAPMessage *msg = NULL;
4111         LDAPMessage *entry;
4112         char *allsids = NULL;
4113         int i, rc, num_mapped;
4114         NTSTATUS result = NT_STATUS_NO_MEMORY;
4115         TALLOC_CTX *mem_ctx;
4116         LDAP *ld;
4117         bool is_builtin;
4118
4119         mem_ctx = talloc_new(NULL);
4120         if (mem_ctx == NULL) {
4121                 DEBUG(0, ("talloc_new failed\n"));
4122                 goto done;
4123         }
4124
4125         if (!sid_check_is_builtin(domain_sid) &&
4126             !sid_check_is_domain(domain_sid)) {
4127                 result = NT_STATUS_INVALID_PARAMETER;
4128                 goto done;
4129         }
4130
4131         if (num_rids == 0) {
4132                 result = NT_STATUS_NONE_MAPPED;
4133                 goto done;
4134         }
4135
4136         for (i=0; i<num_rids; i++)
4137                 attrs[i] = SID_NAME_UNKNOWN;
4138
4139         allsids = talloc_strdup(mem_ctx, "");
4140         if (allsids == NULL) {
4141                 goto done;
4142         }
4143
4144         for (i=0; i<num_rids; i++) {
4145                 struct dom_sid sid;
4146                 sid_compose(&sid, domain_sid, rids[i]);
4147                 allsids = talloc_asprintf_append_buffer(
4148                         allsids, "(sambaSid=%s)",
4149                         sid_string_talloc(mem_ctx, &sid));
4150                 if (allsids == NULL) {
4151                         goto done;
4152                 }
4153         }
4154
4155         /* First look for users */
4156
4157         {
4158                 char *filter;
4159                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
4160
4161                 filter = talloc_asprintf(
4162                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
4163                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
4164
4165                 if (filter == NULL) {
4166                         goto done;
4167                 }
4168
4169                 rc = smbldap_search(ldap_state->smbldap_state,
4170                                     lp_ldap_user_suffix(),
4171                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4172                                     &msg);
4173                 talloc_autofree_ldapmsg(mem_ctx, msg);
4174         }
4175
4176         if (rc != LDAP_SUCCESS)
4177                 goto done;
4178
4179         ld = ldap_state->smbldap_state->ldap_struct;
4180         num_mapped = 0;
4181
4182         for (entry = ldap_first_entry(ld, msg);
4183              entry != NULL;
4184              entry = ldap_next_entry(ld, entry)) {
4185                 uint32_t rid;
4186                 int rid_index;
4187                 const char *name;
4188
4189                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4190                                                     &rid)) {
4191                         DEBUG(2, ("Could not find sid from ldap entry\n"));
4192                         continue;
4193                 }
4194
4195                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
4196                                                        names);
4197                 if (name == NULL) {
4198                         DEBUG(2, ("Could not retrieve uid attribute\n"));
4199                         continue;
4200                 }
4201
4202                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4203                         if (rid == rids[rid_index])
4204                                 break;
4205                 }
4206
4207                 if (rid_index == num_rids) {
4208                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4209                         continue;
4210                 }
4211
4212                 attrs[rid_index] = SID_NAME_USER;
4213                 names[rid_index] = name;
4214                 num_mapped += 1;
4215         }
4216
4217         if (num_mapped == num_rids) {
4218                 /* No need to look for groups anymore -- we're done */
4219                 result = NT_STATUS_OK;
4220                 goto done;
4221         }
4222
4223         /* Same game for groups */
4224
4225         {
4226                 char *filter;
4227                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
4228                                              "sambaGroupType", NULL };
4229
4230                 filter = talloc_asprintf(
4231                         mem_ctx, "(&(objectClass=%s)(|%s))",
4232                         LDAP_OBJ_GROUPMAP, allsids);
4233                 if (filter == NULL) {
4234                         goto done;
4235                 }
4236
4237                 rc = smbldap_search(ldap_state->smbldap_state,
4238                                     lp_ldap_suffix(),
4239                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4240                                     &msg);
4241                 talloc_autofree_ldapmsg(mem_ctx, msg);
4242         }
4243
4244         if (rc != LDAP_SUCCESS)
4245                 goto done;
4246
4247         /* ldap_struct might have changed due to a reconnect */
4248
4249         ld = ldap_state->smbldap_state->ldap_struct;
4250
4251         /* For consistency checks, we already checked we're only domain or builtin */
4252
4253         is_builtin = sid_check_is_builtin(domain_sid);
4254
4255         for (entry = ldap_first_entry(ld, msg);
4256              entry != NULL;
4257              entry = ldap_next_entry(ld, entry))
4258         {
4259                 uint32_t rid;
4260                 int rid_index;
4261                 const char *attr;
4262                 enum lsa_SidType type;
4263                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
4264
4265                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
4266                                                        mem_ctx);
4267                 if (attr == NULL) {
4268                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
4269                                   dn));
4270                         continue;
4271                 }
4272
4273                 type = (enum lsa_SidType)atol(attr);
4274
4275                 /* Consistency checks */
4276                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
4277                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
4278                                      (type != SID_NAME_DOM_GRP)))) {
4279                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
4280                 }
4281
4282                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4283                                                     &rid)) {
4284                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
4285                         continue;
4286                 }
4287
4288                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
4289
4290                 if (attr == NULL) {
4291                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
4292                                    dn));
4293                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
4294                 }
4295
4296                 if (attr == NULL) {
4297                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
4298                                   dn));
4299                         continue;
4300                 }
4301
4302                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4303                         if (rid == rids[rid_index])
4304                                 break;
4305                 }
4306
4307                 if (rid_index == num_rids) {
4308                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4309                         continue;
4310                 }
4311
4312                 attrs[rid_index] = type;
4313                 names[rid_index] = attr;
4314                 num_mapped += 1;
4315         }
4316
4317         result = NT_STATUS_NONE_MAPPED;
4318
4319         if (num_mapped > 0)
4320                 result = (num_mapped == num_rids) ?
4321                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
4322  done:
4323         TALLOC_FREE(mem_ctx);
4324         return result;
4325 }
4326
4327 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
4328 {
4329         char *filter = NULL;
4330         char *escaped = NULL;
4331         char *result = NULL;
4332
4333         if (asprintf(&filter, "(&%s(objectclass=%s))",
4334                           "(uid=%u)", LDAP_OBJ_SAMBASAMACCOUNT) < 0) {
4335                 goto done;
4336         }
4337
4338         escaped = escape_ldap_string(talloc_tos(), username);
4339         if (escaped == NULL) goto done;
4340
4341         result = talloc_string_sub(mem_ctx, filter, "%u", username);
4342
4343  done:
4344         SAFE_FREE(filter);
4345         TALLOC_FREE(escaped);
4346
4347         return result;
4348 }
4349
4350 static const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
4351 {
4352         int i, num = 0;
4353         va_list ap;
4354         const char **result;
4355
4356         va_start(ap, mem_ctx);
4357         while (va_arg(ap, const char *) != NULL)
4358                 num += 1;
4359         va_end(ap);
4360
4361         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
4362                 return NULL;
4363         }
4364
4365         va_start(ap, mem_ctx);
4366         for (i=0; i<num; i++) {
4367                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
4368                 if (result[i] == NULL) {
4369                         talloc_free(result);
4370                         va_end(ap);
4371                         return NULL;
4372                 }
4373         }
4374         va_end(ap);
4375
4376         result[num] = NULL;
4377         return result;
4378 }
4379
4380 struct ldap_search_state {
4381         struct smbldap_state *connection;
4382
4383         uint32_t acct_flags;
4384         uint16_t group_type;
4385
4386         const char *base;
4387         int scope;
4388         const char *filter;
4389         const char **attrs;
4390         int attrsonly;
4391         void *pagedresults_cookie;
4392
4393         LDAPMessage *entries, *current_entry;
4394         bool (*ldap2displayentry)(struct ldap_search_state *state,
4395                                   TALLOC_CTX *mem_ctx,
4396                                   LDAP *ld, LDAPMessage *entry,
4397                                   struct samr_displayentry *result);
4398 };
4399
4400 static bool ldapsam_search_firstpage(struct pdb_search *search)
4401 {
4402         struct ldap_search_state *state =
4403                 (struct ldap_search_state *)search->private_data;
4404         LDAP *ld;
4405         int rc = LDAP_OPERATIONS_ERROR;
4406
4407         state->entries = NULL;
4408
4409         if (state->connection->paged_results) {
4410                 rc = smbldap_search_paged(state->connection, state->base,
4411                                           state->scope, state->filter,
4412                                           state->attrs, state->attrsonly,
4413                                           lp_ldap_page_size(), &state->entries,
4414                                           &state->pagedresults_cookie);
4415         }
4416
4417         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
4418
4419                 if (state->entries != NULL) {
4420                         /* Left over from unsuccessful paged attempt */
4421                         ldap_msgfree(state->entries);
4422                         state->entries = NULL;
4423                 }
4424
4425                 rc = smbldap_search(state->connection, state->base,
4426                                     state->scope, state->filter, state->attrs,
4427                                     state->attrsonly, &state->entries);
4428
4429                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4430                         return False;
4431
4432                 /* Ok, the server was lying. It told us it could do paged
4433                  * searches when it could not. */
4434                 state->connection->paged_results = False;
4435         }
4436
4437         ld = state->connection->ldap_struct;
4438         if ( ld == NULL) {
4439                 DEBUG(5, ("Don't have an LDAP connection right after a "
4440                           "search\n"));
4441                 return False;
4442         }
4443         state->current_entry = ldap_first_entry(ld, state->entries);
4444
4445         return True;
4446 }
4447
4448 static bool ldapsam_search_nextpage(struct pdb_search *search)
4449 {
4450         struct ldap_search_state *state =
4451                 (struct ldap_search_state *)search->private_data;
4452         int rc;
4453
4454         if (!state->connection->paged_results) {
4455                 /* There is no next page when there are no paged results */
4456                 return False;
4457         }
4458
4459         rc = smbldap_search_paged(state->connection, state->base,
4460                                   state->scope, state->filter, state->attrs,
4461                                   state->attrsonly, lp_ldap_page_size(),
4462                                   &state->entries,
4463                                   &state->pagedresults_cookie);
4464
4465         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4466                 return False;
4467
4468         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4469
4470         if (state->current_entry == NULL) {
4471                 ldap_msgfree(state->entries);
4472                 state->entries = NULL;
4473                 return false;
4474         }
4475
4476         return True;
4477 }
4478
4479 static bool ldapsam_search_next_entry(struct pdb_search *search,
4480                                       struct samr_displayentry *entry)
4481 {
4482         struct ldap_search_state *state =
4483                 (struct ldap_search_state *)search->private_data;
4484         bool result;
4485
4486  retry:
4487         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4488                 return False;
4489
4490         if ((state->entries == NULL) &&
4491             !ldapsam_search_nextpage(search))
4492                     return False;
4493
4494         if (state->current_entry == NULL) {
4495                 return false;
4496         }
4497
4498         result = state->ldap2displayentry(state, search,
4499                                           state->connection->ldap_struct,
4500                                           state->current_entry, entry);
4501
4502         if (!result) {
4503                 char *dn;
4504                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4505                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4506                 if (dn != NULL) ldap_memfree(dn);
4507         }
4508
4509         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4510
4511         if (state->current_entry == NULL) {
4512                 ldap_msgfree(state->entries);
4513                 state->entries = NULL;
4514         }
4515
4516         if (!result) goto retry;
4517
4518         return True;
4519 }
4520
4521 static void ldapsam_search_end(struct pdb_search *search)
4522 {
4523         struct ldap_search_state *state =
4524                 (struct ldap_search_state *)search->private_data;
4525         int rc;
4526
4527         if (state->pagedresults_cookie == NULL)
4528                 return;
4529
4530         if (state->entries != NULL)
4531                 ldap_msgfree(state->entries);
4532
4533         state->entries = NULL;
4534         state->current_entry = NULL;
4535
4536         if (!state->connection->paged_results)
4537                 return;
4538
4539         /* Tell the LDAP server we're not interested in the rest anymore. */
4540
4541         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4542                                   state->filter, state->attrs,
4543                                   state->attrsonly, 0, &state->entries,
4544                                   &state->pagedresults_cookie);
4545
4546         if (rc != LDAP_SUCCESS)
4547                 DEBUG(5, ("Could not end search properly\n"));
4548
4549         return;
4550 }
4551
4552 static bool ldapuser2displayentry(struct ldap_search_state *state,
4553                                   TALLOC_CTX *mem_ctx,
4554                                   LDAP *ld, LDAPMessage *entry,
4555                                   struct samr_displayentry *result)
4556 {
4557         char **vals;
4558         size_t converted_size;
4559         struct dom_sid sid;
4560         uint32_t acct_flags;
4561
4562         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4563         if ((vals == NULL) || (vals[0] == NULL)) {
4564                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4565                 return False;
4566         }
4567         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4568         ldap_value_free(vals);
4569
4570         if ((state->acct_flags != 0) &&
4571             ((state->acct_flags & acct_flags) == 0))
4572                 return False;
4573
4574         result->acct_flags = acct_flags;
4575         result->account_name = "";
4576         result->fullname = "";
4577         result->description = "";
4578
4579         vals = ldap_get_values(ld, entry, "uid");
4580         if ((vals == NULL) || (vals[0] == NULL)) {
4581                 DEBUG(5, ("\"uid\" not found\n"));
4582                 return False;
4583         }
4584         if (!pull_utf8_talloc(mem_ctx,
4585                               CONST_DISCARD(char **, &result->account_name),
4586                               vals[0], &converted_size))
4587         {
4588                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4589                          strerror(errno)));
4590         }
4591
4592         ldap_value_free(vals);
4593
4594         vals = ldap_get_values(ld, entry, "displayName");
4595         if ((vals == NULL) || (vals[0] == NULL))
4596                 DEBUG(8, ("\"displayName\" not found\n"));
4597         else if (!pull_utf8_talloc(mem_ctx,
4598                                    CONST_DISCARD(char **, &result->fullname),
4599                                    vals[0], &converted_size))
4600         {
4601                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4602                          strerror(errno)));
4603         }
4604
4605         ldap_value_free(vals);
4606
4607         vals = ldap_get_values(ld, entry, "description");
4608         if ((vals == NULL) || (vals[0] == NULL))
4609                 DEBUG(8, ("\"description\" not found\n"));
4610         else if (!pull_utf8_talloc(mem_ctx,
4611                                    CONST_DISCARD(char **, &result->description),
4612                                    vals[0], &converted_size))
4613         {
4614                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4615                          strerror(errno)));
4616         }
4617
4618         ldap_value_free(vals);
4619
4620         if ((result->account_name == NULL) ||
4621             (result->fullname == NULL) ||
4622             (result->description == NULL)) {
4623                 DEBUG(0, ("talloc failed\n"));
4624                 return False;
4625         }
4626
4627         vals = ldap_get_values(ld, entry, "sambaSid");
4628         if ((vals == NULL) || (vals[0] == NULL)) {
4629                 DEBUG(0, ("\"objectSid\" not found\n"));
4630                 return False;
4631         }
4632
4633         if (!string_to_sid(&sid, vals[0])) {
4634                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4635                 ldap_value_free(vals);
4636                 return False;
4637         }
4638         ldap_value_free(vals);
4639
4640         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4641                 DEBUG(0, ("sid %s does not belong to our domain\n",
4642                           sid_string_dbg(&sid)));
4643                 return False;
4644         }
4645
4646         return True;
4647 }
4648
4649
4650 static bool ldapsam_search_users(struct pdb_methods *methods,
4651                                  struct pdb_search *search,
4652                                  uint32_t acct_flags)
4653 {
4654         struct ldapsam_privates *ldap_state =
4655                 (struct ldapsam_privates *)methods->private_data;
4656         struct ldap_search_state *state;
4657
4658         state = talloc(search, struct ldap_search_state);
4659         if (state == NULL) {
4660                 DEBUG(0, ("talloc failed\n"));
4661                 return False;
4662         }
4663
4664         state->connection = ldap_state->smbldap_state;
4665
4666         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4667                 state->base = lp_ldap_user_suffix();
4668         else if ((acct_flags != 0) &&
4669                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4670                 state->base = lp_ldap_machine_suffix();
4671         else
4672                 state->base = lp_ldap_suffix();
4673
4674         state->acct_flags = acct_flags;
4675         state->base = talloc_strdup(search, state->base);
4676         state->scope = LDAP_SCOPE_SUBTREE;
4677         state->filter = get_ldap_filter(search, "*");
4678         state->attrs = talloc_attrs(search, "uid", "sambaSid",
4679                                     "displayName", "description",
4680                                     "sambaAcctFlags", NULL);
4681         state->attrsonly = 0;
4682         state->pagedresults_cookie = NULL;
4683         state->entries = NULL;
4684         state->ldap2displayentry = ldapuser2displayentry;
4685
4686         if ((state->filter == NULL) || (state->attrs == NULL)) {
4687                 DEBUG(0, ("talloc failed\n"));
4688                 return False;
4689         }
4690
4691         search->private_data = state;
4692         search->next_entry = ldapsam_search_next_entry;
4693         search->search_end = ldapsam_search_end;
4694
4695         return ldapsam_search_firstpage(search);
4696 }
4697
4698 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4699                                    TALLOC_CTX *mem_ctx,
4700                                    LDAP *ld, LDAPMessage *entry,
4701                                    struct samr_displayentry *result)
4702 {
4703         char **vals;
4704         size_t converted_size;
4705         struct dom_sid sid;
4706         uint16_t group_type;
4707
4708         result->account_name = "";
4709         result->fullname = "";
4710         result->description = "";
4711
4712
4713         vals = ldap_get_values(ld, entry, "sambaGroupType");
4714         if ((vals == NULL) || (vals[0] == NULL)) {
4715                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4716                 if (vals != NULL) {
4717                         ldap_value_free(vals);
4718                 }
4719                 return False;
4720         }
4721
4722         group_type = atoi(vals[0]);
4723
4724         if ((state->group_type != 0) &&
4725             ((state->group_type != group_type))) {
4726                 ldap_value_free(vals);
4727                 return False;
4728         }
4729
4730         ldap_value_free(vals);
4731
4732         /* display name is the NT group name */
4733
4734         vals = ldap_get_values(ld, entry, "displayName");
4735         if ((vals == NULL) || (vals[0] == NULL)) {
4736                 DEBUG(8, ("\"displayName\" not found\n"));
4737
4738                 /* fallback to the 'cn' attribute */
4739                 vals = ldap_get_values(ld, entry, "cn");
4740                 if ((vals == NULL) || (vals[0] == NULL)) {
4741                         DEBUG(5, ("\"cn\" not found\n"));
4742                         return False;
4743                 }
4744                 if (!pull_utf8_talloc(mem_ctx,
4745                                       CONST_DISCARD(char **,
4746                                                     &result->account_name),
4747                                       vals[0], &converted_size))
4748                 {
4749                         DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc "
4750                                   "failed: %s", strerror(errno)));
4751                 }
4752         }
4753         else if (!pull_utf8_talloc(mem_ctx,
4754                                    CONST_DISCARD(char **,
4755                                                  &result->account_name),
4756                                    vals[0], &converted_size))
4757         {
4758                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4759                           strerror(errno)));
4760         }
4761
4762         ldap_value_free(vals);
4763
4764         vals = ldap_get_values(ld, entry, "description");
4765         if ((vals == NULL) || (vals[0] == NULL))
4766                 DEBUG(8, ("\"description\" not found\n"));
4767         else if (!pull_utf8_talloc(mem_ctx,
4768                                    CONST_DISCARD(char **, &result->description),
4769                                    vals[0], &converted_size))
4770         {
4771                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4772                           strerror(errno)));
4773         }
4774         ldap_value_free(vals);
4775
4776         if ((result->account_name == NULL) ||
4777             (result->fullname == NULL) ||
4778             (result->description == NULL)) {
4779                 DEBUG(0, ("talloc failed\n"));
4780                 return False;
4781         }
4782
4783         vals = ldap_get_values(ld, entry, "sambaSid");
4784         if ((vals == NULL) || (vals[0] == NULL)) {
4785                 DEBUG(0, ("\"objectSid\" not found\n"));
4786                 if (vals != NULL) {
4787                         ldap_value_free(vals);
4788                 }
4789                 return False;
4790         }
4791
4792         if (!string_to_sid(&sid, vals[0])) {
4793                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4794                 return False;
4795         }
4796
4797         ldap_value_free(vals);
4798
4799         switch (group_type) {
4800                 case SID_NAME_DOM_GRP:
4801                 case SID_NAME_ALIAS:
4802
4803                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4804                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4805                         {
4806                                 DEBUG(0, ("%s is not in our domain\n",
4807                                           sid_string_dbg(&sid)));
4808                                 return False;
4809                         }
4810                         break;
4811
4812                 default:
4813                         DEBUG(0,("unkown group type: %d\n", group_type));
4814                         return False;
4815         }
4816
4817         result->acct_flags = 0;
4818
4819         return True;
4820 }
4821
4822 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4823                                      struct pdb_search *search,
4824                                      const struct dom_sid *sid,
4825                                      enum lsa_SidType type)
4826 {
4827         struct ldapsam_privates *ldap_state =
4828                 (struct ldapsam_privates *)methods->private_data;
4829         struct ldap_search_state *state;
4830         fstring tmp;
4831
4832         state = talloc(search, struct ldap_search_state);
4833         if (state == NULL) {
4834                 DEBUG(0, ("talloc failed\n"));
4835                 return False;
4836         }
4837
4838         state->connection = ldap_state->smbldap_state;
4839
4840         state->base = talloc_strdup(search, lp_ldap_suffix());
4841         state->connection = ldap_state->smbldap_state;
4842         state->scope = LDAP_SCOPE_SUBTREE;
4843         state->filter = talloc_asprintf(search, "(&(objectclass=%s)"
4844                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4845                                          LDAP_OBJ_GROUPMAP,
4846                                          type, sid_to_fstring(tmp, sid));
4847         state->attrs = talloc_attrs(search, "cn", "sambaSid",
4848                                     "displayName", "description",
4849                                     "sambaGroupType", NULL);
4850         state->attrsonly = 0;
4851         state->pagedresults_cookie = NULL;
4852         state->entries = NULL;
4853         state->group_type = type;
4854         state->ldap2displayentry = ldapgroup2displayentry;
4855
4856         if ((state->filter == NULL) || (state->attrs == NULL)) {
4857                 DEBUG(0, ("talloc failed\n"));
4858                 return False;
4859         }
4860
4861         search->private_data = state;
4862         search->next_entry = ldapsam_search_next_entry;
4863         search->search_end = ldapsam_search_end;
4864
4865         return ldapsam_search_firstpage(search);
4866 }
4867
4868 static bool ldapsam_search_groups(struct pdb_methods *methods,
4869                                   struct pdb_search *search)
4870 {
4871         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4872 }
4873
4874 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4875                                    struct pdb_search *search,
4876                                    const struct dom_sid *sid)
4877 {
4878         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4879 }
4880
4881 static uint32_t ldapsam_capabilities(struct pdb_methods *methods)
4882 {
4883         return PDB_CAP_STORE_RIDS;
4884 }
4885
4886 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4887                                     uint32_t *rid)
4888 {
4889         struct smbldap_state *smbldap_state = priv->smbldap_state;
4890
4891         LDAPMessage *result = NULL;
4892         LDAPMessage *entry = NULL;
4893         LDAPMod **mods = NULL;
4894         NTSTATUS status;
4895         char *value;
4896         int rc;
4897         uint32_t nextRid = 0;
4898         const char *dn;
4899
4900         TALLOC_CTX *mem_ctx;
4901
4902         mem_ctx = talloc_new(NULL);
4903         if (mem_ctx == NULL) {
4904                 DEBUG(0, ("talloc_new failed\n"));
4905                 return NT_STATUS_NO_MEMORY;
4906         }
4907
4908         status = smbldap_search_domain_info(smbldap_state, &result,
4909                                             get_global_sam_name(), False);
4910         if (!NT_STATUS_IS_OK(status)) {
4911                 DEBUG(3, ("Could not get domain info: %s\n",
4912                           nt_errstr(status)));
4913                 goto done;
4914         }
4915
4916         talloc_autofree_ldapmsg(mem_ctx, result);
4917
4918         entry = ldap_first_entry(priv2ld(priv), result);
4919         if (entry == NULL) {
4920                 DEBUG(0, ("Could not get domain info entry\n"));
4921                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4922                 goto done;
4923         }
4924
4925         /* Find the largest of the three attributes "sambaNextRid",
4926            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4927            concept of differentiating between user and group rids, and will
4928            use only "sambaNextRid" in the future. But for compatibility
4929            reasons I look if others have chosen different strategies -- VL */
4930
4931         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4932                                                 "sambaNextRid", mem_ctx);
4933         if (value != NULL) {
4934                 uint32_t tmp = (uint32_t)strtoul(value, NULL, 10);
4935                 nextRid = MAX(nextRid, tmp);
4936         }
4937
4938         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4939                                                 "sambaNextUserRid", mem_ctx);
4940         if (value != NULL) {
4941                 uint32_t tmp = (uint32_t)strtoul(value, NULL, 10);
4942                 nextRid = MAX(nextRid, tmp);
4943         }
4944
4945         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4946                                                 "sambaNextGroupRid", mem_ctx);
4947         if (value != NULL) {
4948                 uint32_t tmp = (uint32_t)strtoul(value, NULL, 10);
4949                 nextRid = MAX(nextRid, tmp);
4950         }
4951
4952         if (nextRid == 0) {
4953                 nextRid = BASE_RID-1;
4954         }
4955
4956         nextRid += 1;
4957
4958         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4959                          talloc_asprintf(mem_ctx, "%d", nextRid));
4960         talloc_autofree_ldapmod(mem_ctx, mods);
4961
4962         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4963                 status = NT_STATUS_NO_MEMORY;
4964                 goto done;
4965         }
4966
4967         rc = smbldap_modify(smbldap_state, dn, mods);
4968
4969         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4970          * please retry" */
4971
4972         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4973
4974  done:
4975         if (NT_STATUS_IS_OK(status)) {
4976                 *rid = nextRid;
4977         }
4978
4979         TALLOC_FREE(mem_ctx);
4980         return status;
4981 }
4982
4983 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32_t *rid)
4984 {
4985         int i;
4986
4987         for (i=0; i<10; i++) {
4988                 NTSTATUS result = ldapsam_get_new_rid(
4989                         (struct ldapsam_privates *)methods->private_data, rid);
4990                 if (NT_STATUS_IS_OK(result)) {
4991                         return result;
4992                 }
4993
4994                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4995                         return result;
4996                 }
4997
4998                 /* The ldap update failed (maybe a race condition), retry */
4999         }
5000
5001         /* Tried 10 times, fail. */
5002         return NT_STATUS_ACCESS_DENIED;
5003 }
5004
5005 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32_t *rid)
5006 {
5007         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
5008         return NT_STATUS_IS_OK(result) ? True : False;
5009 }
5010
5011 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
5012                               const struct dom_sid *sid,
5013                               union unid_t *id, enum lsa_SidType *type)
5014 {
5015         struct ldapsam_privates *priv =
5016                 (struct ldapsam_privates *)methods->private_data;
5017         char *filter;
5018         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
5019                                 NULL };
5020         LDAPMessage *result = NULL;
5021         LDAPMessage *entry = NULL;
5022         bool ret = False;
5023         char *value;
5024         int rc;
5025
5026         TALLOC_CTX *mem_ctx;
5027
5028         mem_ctx = talloc_new(NULL);
5029         if (mem_ctx == NULL) {
5030                 DEBUG(0, ("talloc_new failed\n"));
5031                 return False;
5032         }
5033
5034         filter = talloc_asprintf(mem_ctx,
5035                                  "(&(sambaSid=%s)"
5036                                  "(|(objectClass=%s)(objectClass=%s)))",
5037                                  sid_string_talloc(mem_ctx, sid),
5038                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
5039         if (filter == NULL) {
5040                 DEBUG(5, ("talloc_asprintf failed\n"));
5041                 goto done;
5042         }
5043
5044         rc = smbldap_search_suffix(priv->smbldap_state, filter,
5045                                    attrs, &result);
5046         if (rc != LDAP_SUCCESS) {
5047                 goto done;
5048         }
5049         talloc_autofree_ldapmsg(mem_ctx, result);
5050
5051         if (ldap_count_entries(priv2ld(priv), result) != 1) {
5052                 DEBUG(10, ("Got %d entries, expected one\n",
5053                            ldap_count_entries(priv2ld(priv), result)));
5054                 goto done;
5055         }
5056
5057         entry = ldap_first_entry(priv2ld(priv), result);
5058
5059         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5060                                                 "sambaGroupType", mem_ctx);
5061
5062         if (value != NULL) {
5063                 const char *gid_str;
5064                 /* It's a group */
5065
5066                 gid_str = smbldap_talloc_single_attribute(
5067                         priv2ld(priv), entry, "gidNumber", mem_ctx);
5068                 if (gid_str == NULL) {
5069                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
5070                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
5071                                                     entry)));
5072                         goto done;
5073                 }
5074
5075                 id->gid = strtoul(gid_str, NULL, 10);
5076                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
5077                 store_gid_sid_cache(sid, id->gid);
5078                 idmap_cache_set_sid2gid(sid, id->gid);
5079                 ret = True;
5080                 goto done;
5081         }
5082
5083         /* It must be a user */
5084
5085         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5086                                                 "uidNumber", mem_ctx);
5087         if (value == NULL) {
5088                 DEBUG(1, ("Could not find uidNumber in %s\n",
5089                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
5090                 goto done;
5091         }
5092
5093         id->uid = strtoul(value, NULL, 10);
5094         *type = SID_NAME_USER;
5095         store_uid_sid_cache(sid, id->uid);
5096         idmap_cache_set_sid2uid(sid, id->uid);
5097
5098         ret = True;
5099  done:
5100         TALLOC_FREE(mem_ctx);
5101         return ret;
5102 }
5103
5104 /**
5105  * Find the SID for a uid.
5106  * This is shortcut is only used if ldapsam:trusted is set to true.
5107  */
5108 static bool ldapsam_uid_to_sid(struct pdb_methods *methods, uid_t uid,
5109                                struct dom_sid *sid)
5110 {
5111         struct ldapsam_privates *priv =
5112                 (struct ldapsam_privates *)methods->private_data;
5113         char *filter;
5114         const char *attrs[] = { "sambaSID", NULL };
5115         LDAPMessage *result = NULL;
5116         LDAPMessage *entry = NULL;
5117         bool ret = false;
5118         char *user_sid_string;
5119         struct dom_sid user_sid;
5120         int rc;
5121         TALLOC_CTX *tmp_ctx = talloc_stackframe();
5122
5123         filter = talloc_asprintf(tmp_ctx,
5124                                  "(&(uidNumber=%u)"
5125                                  "(objectClass=%s)"
5126                                  "(objectClass=%s))",
5127                                  (unsigned int)uid,
5128                                  LDAP_OBJ_POSIXACCOUNT,
5129                                  LDAP_OBJ_SAMBASAMACCOUNT);
5130         if (filter == NULL) {
5131                 DEBUG(3, ("talloc_asprintf failed\n"));
5132                 goto done;
5133         }
5134
5135         rc = smbldap_search_suffix(priv->smbldap_state, filter, attrs, &result);
5136         if (rc != LDAP_SUCCESS) {
5137                 goto done;
5138         }
5139         talloc_autofree_ldapmsg(tmp_ctx, result);
5140
5141         if (ldap_count_entries(priv2ld(priv), result) != 1) {
5142                 DEBUG(3, ("ERROR: Got %d entries for uid %u, expected one\n",
5143                            ldap_count_entries(priv2ld(priv), result),
5144                            (unsigned int)uid));
5145                 goto done;
5146         }
5147
5148         entry = ldap_first_entry(priv2ld(priv), result);
5149
5150         user_sid_string = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5151                                                           "sambaSID", tmp_ctx);
5152         if (user_sid_string == NULL) {
5153                 DEBUG(1, ("Could not find sambaSID in object '%s'\n",
5154                           smbldap_talloc_dn(tmp_ctx, priv2ld(priv), entry)));
5155                 goto done;
5156         }
5157
5158         if (!string_to_sid(&user_sid, user_sid_string)) {
5159                 DEBUG(3, ("Error calling sid_string_talloc for sid '%s'\n",
5160                           user_sid_string));
5161                 goto done;
5162         }
5163
5164         sid_copy(sid, &user_sid);
5165
5166         store_uid_sid_cache(sid, uid);
5167         idmap_cache_set_sid2uid(sid, uid);
5168
5169         ret = true;
5170
5171  done:
5172         TALLOC_FREE(tmp_ctx);
5173         return ret;
5174 }
5175
5176 /**
5177  * Find the SID for a gid.
5178  * This is shortcut is only used if ldapsam:trusted is set to true.
5179  */
5180 static bool ldapsam_gid_to_sid(struct pdb_methods *methods, gid_t gid,
5181                                struct dom_sid *sid)
5182 {
5183         struct ldapsam_privates *priv =
5184                 (struct ldapsam_privates *)methods->private_data;
5185         char *filter;
5186         const char *attrs[] = { "sambaSID", NULL };
5187         LDAPMessage *result = NULL;
5188         LDAPMessage *entry = NULL;
5189         bool ret = false;
5190         char *group_sid_string;
5191         struct dom_sid group_sid;
5192         int rc;
5193         TALLOC_CTX *tmp_ctx = talloc_stackframe();
5194
5195         filter = talloc_asprintf(tmp_ctx,
5196                                  "(&(gidNumber=%u)"
5197                                  "(objectClass=%s))",
5198                                  (unsigned int)gid,
5199                                  LDAP_OBJ_GROUPMAP);
5200         if (filter == NULL) {
5201                 DEBUG(3, ("talloc_asprintf failed\n"));
5202                 goto done;
5203         }
5204
5205         rc = smbldap_search_suffix(priv->smbldap_state, filter, attrs, &result);
5206         if (rc != LDAP_SUCCESS) {
5207                 goto done;
5208         }
5209         talloc_autofree_ldapmsg(tmp_ctx, result);
5210
5211         if (ldap_count_entries(priv2ld(priv), result) != 1) {
5212                 DEBUG(3, ("ERROR: Got %d entries for gid %u, expected one\n",
5213                            ldap_count_entries(priv2ld(priv), result),
5214                            (unsigned int)gid));
5215                 goto done;
5216         }
5217
5218         entry = ldap_first_entry(priv2ld(priv), result);
5219
5220         group_sid_string = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5221                                                           "sambaSID", tmp_ctx);
5222         if (group_sid_string == NULL) {
5223                 DEBUG(1, ("Could not find sambaSID in object '%s'\n",
5224                           smbldap_talloc_dn(tmp_ctx, priv2ld(priv), entry)));
5225                 goto done;
5226         }
5227
5228         if (!string_to_sid(&group_sid, group_sid_string)) {
5229                 DEBUG(3, ("Error calling sid_string_talloc for sid '%s'\n",
5230                           group_sid_string));
5231                 goto done;
5232         }
5233
5234         sid_copy(sid, &group_sid);
5235
5236         store_gid_sid_cache(sid, gid);
5237         idmap_cache_set_sid2gid(sid, gid);
5238
5239         ret = true;
5240
5241  done:
5242         TALLOC_FREE(tmp_ctx);
5243         return ret;
5244 }
5245
5246
5247 /*
5248  * The following functions are called only if
5249  * ldapsam:trusted and ldapsam:editposix are
5250  * set to true
5251  */
5252
5253 /*
5254  * ldapsam_create_user creates a new
5255  * posixAccount and sambaSamAccount object
5256  * in the ldap users subtree
5257  *
5258  * The uid is allocated by winbindd.
5259  */
5260
5261 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
5262                                     TALLOC_CTX *tmp_ctx, const char *name,
5263                                     uint32_t acb_info, uint32_t *rid)
5264 {
5265         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5266         LDAPMessage *entry = NULL;
5267         LDAPMessage *result = NULL;
5268         uint32_t num_result;
5269         bool is_machine = False;
5270         bool add_posix = False;
5271         LDAPMod **mods = NULL;
5272         struct samu *user;
5273         char *filter;
5274         char *username;
5275         char *homedir;
5276         char *gidstr;
5277         char *uidstr;
5278         char *shell;
5279         const char *dn = NULL;
5280         struct dom_sid group_sid;
5281         struct dom_sid user_sid;
5282         gid_t gid = -1;
5283         uid_t uid = -1;
5284         NTSTATUS ret;
5285         int rc;
5286
5287         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
5288               acb_info & ACB_WSTRUST ||
5289               acb_info & ACB_SVRTRUST ||
5290               acb_info & ACB_DOMTRUST) {
5291                 is_machine = True;
5292         }
5293
5294         username = escape_ldap_string(talloc_tos(), name);
5295         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
5296                                  username, LDAP_OBJ_POSIXACCOUNT);
5297         TALLOC_FREE(username);
5298
5299         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5300         if (rc != LDAP_SUCCESS) {
5301                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
5302                 return NT_STATUS_ACCESS_DENIED;
5303         }
5304         talloc_autofree_ldapmsg(tmp_ctx, result);
5305
5306         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5307
5308         if (num_result > 1) {
5309                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
5310                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5311         }
5312
5313         if (num_result == 1) {
5314                 char *tmp;
5315                 /* check if it is just a posix account.
5316                  * or if there is a sid attached to this entry
5317                  */
5318
5319                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5320                 if (!entry) {
5321                         return NT_STATUS_UNSUCCESSFUL;
5322                 }
5323
5324                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5325                 if (tmp) {
5326                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5327                         return NT_STATUS_USER_EXISTS;
5328                 }
5329
5330                 /* it is just a posix account, retrieve the dn for later use */
5331                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5332                 if (!dn) {
5333                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5334                         return NT_STATUS_NO_MEMORY;
5335                 }
5336         }
5337
5338         if (num_result == 0) {
5339                 add_posix = True;
5340         }
5341
5342         /* Create the basic samu structure and generate the mods for the ldap commit */
5343         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5344                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5345                 return ret;
5346         }
5347
5348         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5349
5350         user = samu_new(tmp_ctx);
5351         if (!user) {
5352                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5353                 return NT_STATUS_NO_MEMORY;
5354         }
5355
5356         if (!pdb_set_username(user, name, PDB_SET)) {
5357                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5358                 return NT_STATUS_UNSUCCESSFUL;
5359         }
5360         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5361                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5362                 return NT_STATUS_UNSUCCESSFUL;
5363         }
5364         if (is_machine) {
5365                 if (acb_info & ACB_NORMAL) {
5366                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5367                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5368                                 return NT_STATUS_UNSUCCESSFUL;
5369                         }
5370                 } else {
5371                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5372                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5373                                 return NT_STATUS_UNSUCCESSFUL;
5374                         }
5375                 }
5376         } else {
5377                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5378                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5379                         return NT_STATUS_UNSUCCESSFUL;
5380                 }
5381         }
5382
5383         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5384                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5385                 return NT_STATUS_UNSUCCESSFUL;
5386         }
5387
5388         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
5389                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5390                 return NT_STATUS_UNSUCCESSFUL;
5391         }
5392
5393         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5394                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5395         }
5396         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5397
5398         if (add_posix) {
5399                 char *escape_name;
5400
5401                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5402
5403                 /* retrieve the Domain Users group gid */
5404                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_RID_USERS) ||
5405                     !sid_to_gid(&group_sid, &gid)) {
5406                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5407                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5408                 }
5409
5410                 /* lets allocate a new userid for this user */
5411                 if (!winbind_allocate_uid(&uid)) {
5412                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5413                         return NT_STATUS_UNSUCCESSFUL;
5414                 }
5415
5416
5417                 if (is_machine) {
5418                         /* TODO: choose a more appropriate default for machines */
5419                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5420                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5421                 } else {
5422                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5423                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5424                 }
5425                 uidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)uid);
5426                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5427
5428                 escape_name = escape_rdn_val_string_alloc(name);
5429                 if (!escape_name) {
5430                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5431                         return NT_STATUS_NO_MEMORY;
5432                 }
5433
5434                 if (is_machine) {
5435                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5436                 } else {
5437                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5438                 }
5439
5440                 SAFE_FREE(escape_name);
5441
5442                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5443                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5444                         return NT_STATUS_NO_MEMORY;
5445                 }
5446
5447                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5448                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5449                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5450                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5451                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5452                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5453                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5454         }
5455
5456         talloc_autofree_ldapmod(tmp_ctx, mods);
5457
5458         if (add_posix) {
5459                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5460         } else {
5461                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5462         }
5463
5464         if (rc != LDAP_SUCCESS) {
5465                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5466                 return NT_STATUS_UNSUCCESSFUL;
5467         }
5468
5469         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5470
5471         flush_pwnam_cache();
5472
5473         return NT_STATUS_OK;
5474 }
5475
5476 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5477 {
5478         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5479         LDAPMessage *result = NULL;
5480         LDAPMessage *entry = NULL;
5481         int num_result;
5482         const char *dn;
5483         char *filter;
5484         int rc;
5485
5486         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5487
5488         filter = talloc_asprintf(tmp_ctx,
5489                                  "(&(uid=%s)"
5490                                  "(objectClass=%s)"
5491                                  "(objectClass=%s))",
5492                                  pdb_get_username(sam_acct),
5493                                  LDAP_OBJ_POSIXACCOUNT,
5494                                  LDAP_OBJ_SAMBASAMACCOUNT);
5495         if (filter == NULL) {
5496                 return NT_STATUS_NO_MEMORY;
5497         }
5498
5499         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5500         if (rc != LDAP_SUCCESS) {
5501                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5502                 return NT_STATUS_UNSUCCESSFUL;
5503         }
5504         talloc_autofree_ldapmsg(tmp_ctx, result);
5505
5506         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5507
5508         if (num_result == 0) {
5509                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5510                 return NT_STATUS_NO_SUCH_USER;
5511         }
5512
5513         if (num_result > 1) {
5514                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5515                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5516         }
5517
5518         entry = ldap_first_entry(priv2ld(ldap_state), result);
5519         if (!entry) {
5520                 return NT_STATUS_UNSUCCESSFUL;
5521         }
5522
5523         /* it is just a posix account, retrieve the dn for later use */
5524         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5525         if (!dn) {
5526                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5527                 return NT_STATUS_NO_MEMORY;
5528         }
5529
5530         /* try to remove memberships first */
5531         {
5532                 NTSTATUS status;
5533                 struct dom_sid *sids = NULL;
5534                 gid_t *gids = NULL;
5535                 size_t num_groups = 0;
5536                 int i;
5537                 uint32_t user_rid = pdb_get_user_rid(sam_acct);
5538
5539                 status = ldapsam_enum_group_memberships(my_methods,
5540                                                         tmp_ctx,
5541                                                         sam_acct,
5542                                                         &sids,
5543                                                         &gids,
5544                                                         &num_groups);
5545                 if (!NT_STATUS_IS_OK(status)) {
5546                         goto delete_dn;
5547                 }
5548
5549                 for (i=0; i < num_groups; i++) {
5550
5551                         uint32_t group_rid;
5552
5553                         sid_peek_rid(&sids[i], &group_rid);
5554
5555                         ldapsam_del_groupmem(my_methods,
5556                                              tmp_ctx,
5557                                              group_rid,
5558                                              user_rid);
5559                 }
5560         }
5561
5562  delete_dn:
5563
5564         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5565         if (rc != LDAP_SUCCESS) {
5566                 return NT_STATUS_UNSUCCESSFUL;
5567         }
5568
5569         flush_pwnam_cache();
5570
5571         return NT_STATUS_OK;
5572 }
5573
5574 /*
5575  * ldapsam_create_group creates a new
5576  * posixGroup and sambaGroupMapping object
5577  * in the ldap groups subtree
5578  *
5579  * The gid is allocated by winbindd.
5580  */
5581
5582 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5583                                          TALLOC_CTX *tmp_ctx,
5584                                          const char *name,
5585                                          uint32_t *rid)
5586 {
5587         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5588         NTSTATUS ret;
5589         LDAPMessage *entry = NULL;
5590         LDAPMessage *result = NULL;
5591         uint32_t num_result;
5592         bool is_new_entry = False;
5593         LDAPMod **mods = NULL;
5594         char *filter;
5595         char *groupsidstr;
5596         char *groupname;
5597         char *grouptype;
5598         char *gidstr;
5599         const char *dn = NULL;
5600         struct dom_sid group_sid;
5601         gid_t gid = -1;
5602         int rc;
5603
5604         groupname = escape_ldap_string(talloc_tos(), name);
5605         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5606                                  groupname, LDAP_OBJ_POSIXGROUP);
5607         TALLOC_FREE(groupname);
5608
5609         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5610         if (rc != LDAP_SUCCESS) {
5611                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5612                 return NT_STATUS_UNSUCCESSFUL;
5613         }
5614         talloc_autofree_ldapmsg(tmp_ctx, result);
5615
5616         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5617
5618         if (num_result > 1) {
5619                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5620                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5621         }
5622
5623         if (num_result == 1) {
5624                 char *tmp;
5625                 /* check if it is just a posix group.
5626                  * or if there is a sid attached to this entry
5627                  */
5628
5629                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5630                 if (!entry) {
5631                         return NT_STATUS_UNSUCCESSFUL;
5632                 }
5633
5634                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5635                 if (tmp) {
5636                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5637                         return NT_STATUS_GROUP_EXISTS;
5638                 }
5639
5640                 /* it is just a posix group, retrieve the gid and the dn for later use */
5641                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5642                 if (!tmp) {
5643                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5644                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5645                 }
5646
5647                 gid = strtoul(tmp, NULL, 10);
5648
5649                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5650                 if (!dn) {
5651                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5652                         return NT_STATUS_NO_MEMORY;
5653                 }
5654         }
5655
5656         if (num_result == 0) {
5657                 char *escape_name;
5658
5659                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5660
5661                 is_new_entry = True;
5662
5663                 /* lets allocate a new groupid for this group */
5664                 if (!winbind_allocate_gid(&gid)) {
5665                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5666                         return NT_STATUS_UNSUCCESSFUL;
5667                 }
5668
5669                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5670
5671                 escape_name = escape_rdn_val_string_alloc(name);
5672                 if (!escape_name) {
5673                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5674                         return NT_STATUS_NO_MEMORY;
5675                 }
5676
5677                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5678
5679                 SAFE_FREE(escape_name);
5680
5681                 if (!gidstr || !dn) {
5682                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5683                         return NT_STATUS_NO_MEMORY;
5684                 }
5685
5686                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5687                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5688                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5689         }
5690
5691         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5692                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5693                 return ret;
5694         }
5695
5696         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5697
5698         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5699                                                                &group_sid));
5700         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5701
5702         if (!groupsidstr || !grouptype) {
5703                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5704                 return NT_STATUS_NO_MEMORY;
5705         }
5706
5707         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5708         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5709         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5710         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5711         talloc_autofree_ldapmod(tmp_ctx, mods);
5712
5713         if (is_new_entry) {
5714                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5715 #if 0
5716                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5717                         /* This call may fail with rfc2307bis schema */
5718                         /* Retry adding a structural class */
5719                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5720                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5721                 }
5722 #endif
5723         } else {
5724                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5725         }
5726
5727         if (rc != LDAP_SUCCESS) {
5728                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5729                 return NT_STATUS_UNSUCCESSFUL;
5730         }
5731
5732         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5733
5734         return NT_STATUS_OK;
5735 }
5736
5737 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32_t rid)
5738 {
5739         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5740         LDAPMessage *result = NULL;
5741         LDAPMessage *entry = NULL;
5742         int num_result;
5743         const char *dn;
5744         char *gidstr;
5745         char *filter;
5746         struct dom_sid group_sid;
5747         int rc;
5748
5749         /* get the group sid */
5750         sid_compose(&group_sid, get_global_sam_sid(), rid);
5751
5752         filter = talloc_asprintf(tmp_ctx,
5753                                  "(&(sambaSID=%s)"
5754                                  "(objectClass=%s)"
5755                                  "(objectClass=%s))",
5756                                  sid_string_talloc(tmp_ctx, &group_sid),
5757                                  LDAP_OBJ_POSIXGROUP,
5758                                  LDAP_OBJ_GROUPMAP);
5759         if (filter == NULL) {
5760                 return NT_STATUS_NO_MEMORY;
5761         }
5762
5763         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5764         if (rc != LDAP_SUCCESS) {
5765                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5766                 return NT_STATUS_UNSUCCESSFUL;
5767         }
5768         talloc_autofree_ldapmsg(tmp_ctx, result);
5769
5770         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5771
5772         if (num_result == 0) {
5773                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5774                 return NT_STATUS_NO_SUCH_GROUP;
5775         }
5776
5777         if (num_result > 1) {
5778                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5779                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5780         }
5781
5782         entry = ldap_first_entry(priv2ld(ldap_state), result);
5783         if (!entry) {
5784                 return NT_STATUS_UNSUCCESSFUL;
5785         }
5786
5787         /* here it is, retrieve the dn for later use */
5788         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5789         if (!dn) {
5790                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5791                 return NT_STATUS_NO_MEMORY;
5792         }
5793
5794         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5795         if (!gidstr) {
5796                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5797                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5798         }
5799
5800         /* check no user have this group marked as primary group */
5801         filter = talloc_asprintf(tmp_ctx,
5802                                  "(&(gidNumber=%s)"
5803                                  "(objectClass=%s)"
5804                                  "(objectClass=%s))",
5805                                  gidstr,
5806                                  LDAP_OBJ_POSIXACCOUNT,
5807                                  LDAP_OBJ_SAMBASAMACCOUNT);
5808
5809         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5810         if (rc != LDAP_SUCCESS) {
5811                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5812                 return NT_STATUS_UNSUCCESSFUL;
5813         }
5814         talloc_autofree_ldapmsg(tmp_ctx, result);
5815
5816         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5817
5818         if (num_result != 0) {
5819                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5820                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5821         }
5822
5823         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5824         if (rc != LDAP_SUCCESS) {
5825                 return NT_STATUS_UNSUCCESSFUL;
5826         }
5827
5828         return NT_STATUS_OK;
5829 }
5830
5831 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5832                                         TALLOC_CTX *tmp_ctx,
5833                                         uint32_t group_rid,
5834                                         uint32_t member_rid,
5835                                         int modop)
5836 {
5837         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5838         LDAPMessage *entry = NULL;
5839         LDAPMessage *result = NULL;
5840         uint32_t num_result;
5841         LDAPMod **mods = NULL;
5842         char *filter;
5843         char *uidstr;
5844         const char *dn = NULL;
5845         struct dom_sid group_sid;
5846         struct dom_sid member_sid;
5847         int rc;
5848
5849         switch (modop) {
5850         case LDAP_MOD_ADD:
5851                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5852                 break;
5853         case LDAP_MOD_DELETE:
5854                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5855                 break;
5856         default:
5857                 return NT_STATUS_UNSUCCESSFUL;
5858         }
5859
5860         /* get member sid  */
5861         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5862
5863         /* get the group sid */
5864         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5865
5866         filter = talloc_asprintf(tmp_ctx,
5867                                  "(&(sambaSID=%s)"
5868                                  "(objectClass=%s)"
5869                                  "(objectClass=%s))",
5870                                  sid_string_talloc(tmp_ctx, &member_sid),
5871                                  LDAP_OBJ_POSIXACCOUNT,
5872                                  LDAP_OBJ_SAMBASAMACCOUNT);
5873         if (filter == NULL) {
5874                 return NT_STATUS_NO_MEMORY;
5875         }
5876
5877         /* get the member uid */
5878         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5879         if (rc != LDAP_SUCCESS) {
5880                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5881                 return NT_STATUS_UNSUCCESSFUL;
5882         }
5883         talloc_autofree_ldapmsg(tmp_ctx, result);
5884
5885         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5886
5887         if (num_result == 0) {
5888                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5889                 return NT_STATUS_NO_SUCH_MEMBER;
5890         }
5891
5892         if (num_result > 1) {
5893                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5894                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5895         }
5896
5897         entry = ldap_first_entry(priv2ld(ldap_state), result);
5898         if (!entry) {
5899                 return NT_STATUS_UNSUCCESSFUL;
5900         }
5901
5902         if (modop == LDAP_MOD_DELETE) {
5903                 /* check if we are trying to remove the member from his primary group */
5904                 char *gidstr;
5905                 gid_t user_gid, group_gid;
5906
5907                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5908                 if (!gidstr) {
5909                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5910                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5911                 }
5912
5913                 user_gid = strtoul(gidstr, NULL, 10);
5914
5915                 if (!sid_to_gid(&group_sid, &group_gid)) {
5916                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5917                         return NT_STATUS_UNSUCCESSFUL;
5918                 }
5919
5920                 if (user_gid == group_gid) {
5921                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5922                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5923                 }
5924         }
5925
5926         /* here it is, retrieve the uid for later use */
5927         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5928         if (!uidstr) {
5929                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5930                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5931         }
5932
5933         filter = talloc_asprintf(tmp_ctx,
5934                                  "(&(sambaSID=%s)"
5935                                  "(objectClass=%s)"
5936                                  "(objectClass=%s))",
5937                                  sid_string_talloc(tmp_ctx, &group_sid),
5938                                  LDAP_OBJ_POSIXGROUP,
5939                                  LDAP_OBJ_GROUPMAP);
5940
5941         /* get the group */
5942         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5943         if (rc != LDAP_SUCCESS) {
5944                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5945                 return NT_STATUS_UNSUCCESSFUL;
5946         }
5947         talloc_autofree_ldapmsg(tmp_ctx, result);
5948
5949         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5950
5951         if (num_result == 0) {
5952                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5953                 return NT_STATUS_NO_SUCH_GROUP;
5954         }
5955
5956         if (num_result > 1) {
5957                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5958                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5959         }
5960
5961         entry = ldap_first_entry(priv2ld(ldap_state), result);
5962         if (!entry) {
5963                 return NT_STATUS_UNSUCCESSFUL;
5964         }
5965
5966         /* here it is, retrieve the dn for later use */
5967         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5968         if (!dn) {
5969                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5970                 return NT_STATUS_NO_MEMORY;
5971         }
5972
5973         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5974
5975         talloc_autofree_ldapmod(tmp_ctx, mods);
5976
5977         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5978         if (rc != LDAP_SUCCESS) {
5979                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5980                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5981                         return NT_STATUS_MEMBER_IN_GROUP;
5982                 }
5983                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5984                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5985                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5986                 }
5987                 return NT_STATUS_UNSUCCESSFUL;
5988         }
5989
5990         return NT_STATUS_OK;
5991 }
5992
5993 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5994                                      TALLOC_CTX *tmp_ctx,
5995                                      uint32_t group_rid,
5996                                      uint32_t member_rid)
5997 {
5998         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5999 }
6000 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
6001                                      TALLOC_CTX *tmp_ctx,
6002                                      uint32_t group_rid,
6003                                      uint32_t member_rid)
6004 {
6005         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
6006 }
6007
6008 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
6009                                           TALLOC_CTX *mem_ctx,
6010                                           struct samu *sampass)
6011 {
6012         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
6013         LDAPMessage *entry = NULL;
6014         LDAPMessage *result = NULL;
6015         uint32_t num_result;
6016         LDAPMod **mods = NULL;
6017         char *filter;
6018         char *escape_username;
6019         char *gidstr;
6020         const char *dn = NULL;
6021         gid_t gid;
6022         int rc;
6023
6024         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
6025
6026         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
6027                 DEBUG(0,("ldapsam_set_primary_group: failed to retrieve gid from user's group SID!\n"));
6028                 return NT_STATUS_UNSUCCESSFUL;
6029         }
6030         gidstr = talloc_asprintf(mem_ctx, "%u", (unsigned int)gid);
6031         if (!gidstr) {
6032                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
6033                 return NT_STATUS_NO_MEMORY;
6034         }
6035
6036         escape_username = escape_ldap_string(talloc_tos(),
6037                                              pdb_get_username(sampass));
6038         if (escape_username== NULL) {
6039                 return NT_STATUS_NO_MEMORY;
6040         }
6041
6042         filter = talloc_asprintf(mem_ctx,
6043                                  "(&(uid=%s)"
6044                                  "(objectClass=%s)"
6045                                  "(objectClass=%s))",
6046                                  escape_username,
6047                                  LDAP_OBJ_POSIXACCOUNT,
6048                                  LDAP_OBJ_SAMBASAMACCOUNT);
6049
6050         TALLOC_FREE(escape_username);
6051
6052         if (filter == NULL) {
6053                 return NT_STATUS_NO_MEMORY;
6054         }
6055
6056         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
6057         if (rc != LDAP_SUCCESS) {
6058                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
6059                 return NT_STATUS_UNSUCCESSFUL;
6060         }
6061         talloc_autofree_ldapmsg(mem_ctx, result);
6062
6063         num_result = ldap_count_entries(priv2ld(ldap_state), result);
6064
6065         if (num_result == 0) {
6066                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
6067                 return NT_STATUS_NO_SUCH_USER;
6068         }
6069
6070         if (num_result > 1) {
6071                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
6072                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
6073         }
6074
6075         entry = ldap_first_entry(priv2ld(ldap_state), result);
6076         if (!entry) {
6077                 return NT_STATUS_UNSUCCESSFUL;
6078         }
6079
6080         /* retrieve the dn for later use */
6081         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
6082         if (!dn) {
6083                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
6084                 return NT_STATUS_NO_MEMORY;
6085         }
6086
6087         /* remove the old one, and add the new one, this way we do not risk races */
6088         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
6089
6090         if (mods == NULL) {
6091                 return NT_STATUS_OK;
6092         }
6093
6094         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
6095
6096         if (rc != LDAP_SUCCESS) {
6097                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
6098                          pdb_get_username(sampass), gidstr));
6099                 return NT_STATUS_UNSUCCESSFUL;
6100         }
6101
6102         flush_pwnam_cache();
6103
6104         return NT_STATUS_OK;
6105 }
6106
6107
6108 /**********************************************************************
6109  trusted domains functions
6110  *********************************************************************/
6111
6112 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
6113                            const char *domain)
6114 {
6115         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
6116                                ldap_state->domain_dn);
6117 }
6118
6119 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
6120                                   TALLOC_CTX *mem_ctx,
6121                                   const char *domain, LDAPMessage **entry)
6122 {
6123         int rc;
6124         char *filter;
6125         int scope = LDAP_SCOPE_SUBTREE;
6126         const char **attrs = NULL; /* NULL: get all attrs */
6127         int attrsonly = 0; /* 0: return values too */
6128         LDAPMessage *result = NULL;
6129         char *trusted_dn;
6130         uint32_t num_result;
6131
6132         filter = talloc_asprintf(talloc_tos(),
6133                                  "(&(objectClass=%s)(sambaDomainName=%s))",
6134                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
6135
6136         trusted_dn = trusteddom_dn(ldap_state, domain);
6137         if (trusted_dn == NULL) {
6138                 return False;
6139         }
6140         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
6141                             filter, attrs, attrsonly, &result);
6142
6143         if (result != NULL) {
6144                 talloc_autofree_ldapmsg(mem_ctx, result);
6145         }
6146
6147         if (rc == LDAP_NO_SUCH_OBJECT) {
6148                 *entry = NULL;
6149                 return True;
6150         }
6151
6152         if (rc != LDAP_SUCCESS) {
6153                 return False;
6154         }
6155
6156         num_result = ldap_count_entries(priv2ld(ldap_state), result);
6157
6158         if (num_result > 1) {
6159                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
6160                           "%s object for domain '%s'?!\n",
6161                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
6162                 return False;
6163         }
6164
6165         if (num_result == 0) {
6166                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
6167                           "%s object for domain %s.\n",
6168                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
6169                 *entry = NULL;
6170         } else {
6171                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
6172         }
6173
6174         return True;
6175 }
6176
6177 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
6178                                       const char *domain,
6179                                       char** pwd,
6180                                       struct dom_sid *sid,
6181                                       time_t *pass_last_set_time)
6182 {
6183         struct ldapsam_privates *ldap_state =
6184                 (struct ldapsam_privates *)methods->private_data;
6185         LDAPMessage *entry = NULL;
6186
6187         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
6188
6189         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry) ||
6190             (entry == NULL))
6191         {
6192                 return False;
6193         }
6194
6195         /* password */
6196         if (pwd != NULL) {
6197                 char *pwd_str;
6198                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6199                                 entry, "sambaClearTextPassword", talloc_tos());
6200                 if (pwd_str == NULL) {
6201                         return False;
6202                 }
6203                 /* trusteddom_pw routines do not use talloc yet... */
6204                 *pwd = SMB_STRDUP(pwd_str);
6205                 if (*pwd == NULL) {
6206                         return False;
6207                 }
6208         }
6209
6210         /* last change time */
6211         if (pass_last_set_time != NULL) {
6212                 char *time_str;
6213                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6214                                 entry, "sambaPwdLastSet", talloc_tos());
6215                 if (time_str == NULL) {
6216                         return False;
6217                 }
6218                 *pass_last_set_time = (time_t)atol(time_str);
6219         }
6220
6221         /* domain sid */
6222         if (sid != NULL) {
6223                 char *sid_str;
6224                 struct dom_sid dom_sid;
6225                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6226                                                           entry, "sambaSID",
6227                                                           talloc_tos());
6228                 if (sid_str == NULL) {
6229                         return False;
6230                 }
6231                 if (!string_to_sid(&dom_sid, sid_str)) {
6232                         return False;
6233                 }
6234                 sid_copy(sid, &dom_sid);
6235         }
6236
6237         return True;
6238 }
6239
6240 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
6241                                       const char* domain,
6242                                       const char* pwd,
6243                                       const struct dom_sid *sid)
6244 {
6245         struct ldapsam_privates *ldap_state =
6246                 (struct ldapsam_privates *)methods->private_data;
6247         LDAPMessage *entry = NULL;
6248         LDAPMod **mods = NULL;
6249         char *prev_pwd = NULL;
6250         char *trusted_dn = NULL;
6251         int rc;
6252
6253         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
6254
6255         /*
6256          * get the current entry (if there is one) in order to put the
6257          * current password into the previous password attribute
6258          */
6259         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
6260                 return False;
6261         }
6262
6263         mods = NULL;
6264         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
6265                          LDAP_OBJ_TRUSTDOM_PASSWORD);
6266         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
6267                          domain);
6268         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
6269                          sid_string_tos(sid));
6270         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
6271                          talloc_asprintf(talloc_tos(), "%li", (long int)time(NULL)));
6272         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
6273                          "sambaClearTextPassword", pwd);
6274
6275         if (entry != NULL) {
6276                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6277                                 entry, "sambaClearTextPassword", talloc_tos());
6278                 if (prev_pwd != NULL) {
6279                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
6280                                          "sambaPreviousClearTextPassword",
6281                                          prev_pwd);
6282                 }
6283         }
6284
6285         talloc_autofree_ldapmod(talloc_tos(), mods);
6286
6287         trusted_dn = trusteddom_dn(ldap_state, domain);
6288         if (trusted_dn == NULL) {
6289                 return False;
6290         }
6291         if (entry == NULL) {
6292                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
6293         } else {
6294                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
6295         }
6296
6297         if (rc != LDAP_SUCCESS) {
6298                 DEBUG(1, ("error writing trusted domain password!\n"));
6299                 return False;
6300         }
6301
6302         return True;
6303 }
6304
6305 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
6306                                       const char *domain)
6307 {
6308         int rc;
6309         struct ldapsam_privates *ldap_state =
6310                 (struct ldapsam_privates *)methods->private_data;
6311         LDAPMessage *entry = NULL;
6312         const char *trusted_dn;
6313
6314         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
6315                 return False;
6316         }
6317
6318         if (entry == NULL) {
6319                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
6320                           "%s\n", domain));
6321                 return True;
6322         }
6323
6324         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
6325                                        entry);
6326         if (trusted_dn == NULL) {
6327                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
6328                 return False;
6329         }
6330
6331         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
6332         if (rc != LDAP_SUCCESS) {
6333                 return False;
6334         }
6335
6336         return True;
6337 }
6338
6339 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
6340                                          TALLOC_CTX *mem_ctx,
6341                                          uint32_t *num_domains,
6342                                          struct trustdom_info ***domains)
6343 {
6344         int rc;
6345         struct ldapsam_privates *ldap_state =
6346                 (struct ldapsam_privates *)methods->private_data;
6347         char *filter;
6348         int scope = LDAP_SCOPE_SUBTREE;
6349         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
6350         int attrsonly = 0; /* 0: return values too */
6351         LDAPMessage *result = NULL;
6352         LDAPMessage *entry = NULL;
6353
6354         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
6355                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
6356
6357         rc = smbldap_search(ldap_state->smbldap_state,
6358                             ldap_state->domain_dn,
6359                             scope,
6360                             filter,
6361                             attrs,
6362                             attrsonly,
6363                             &result);
6364
6365         if (result != NULL) {
6366                 talloc_autofree_ldapmsg(mem_ctx, result);
6367         }
6368
6369         if (rc != LDAP_SUCCESS) {
6370                 return NT_STATUS_UNSUCCESSFUL;
6371         }
6372
6373         *num_domains = 0;
6374         if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) {
6375                 DEBUG(1, ("talloc failed\n"));
6376                 return NT_STATUS_NO_MEMORY;
6377         }
6378
6379         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6380              entry != NULL;
6381              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6382         {
6383                 char *dom_name, *dom_sid_str;
6384                 struct trustdom_info *dom_info;
6385
6386                 dom_info = TALLOC_P(*domains, struct trustdom_info);
6387                 if (dom_info == NULL) {
6388                         DEBUG(1, ("talloc failed\n"));
6389                         return NT_STATUS_NO_MEMORY;
6390                 }
6391
6392                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6393                                                            entry,
6394                                                            "sambaDomainName",
6395                                                            talloc_tos());
6396                 if (dom_name == NULL) {
6397                         DEBUG(1, ("talloc failed\n"));
6398                         return NT_STATUS_NO_MEMORY;
6399                 }
6400                 dom_info->name = dom_name;
6401
6402                 dom_sid_str = smbldap_talloc_single_attribute(
6403                                         priv2ld(ldap_state), entry, "sambaSID",
6404                                         talloc_tos());
6405                 if (dom_sid_str == NULL) {
6406                         DEBUG(1, ("talloc failed\n"));
6407                         return NT_STATUS_NO_MEMORY;
6408                 }
6409                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6410                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6411                                   dom_sid_str));
6412                         return NT_STATUS_UNSUCCESSFUL;
6413                 }
6414
6415                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6416                              domains, num_domains);
6417
6418                 if (*domains == NULL) {
6419                         DEBUG(1, ("talloc failed\n"));
6420                         return NT_STATUS_NO_MEMORY;
6421                 }
6422         }
6423
6424         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6425         return NT_STATUS_OK;
6426 }
6427
6428
6429 /**********************************************************************
6430  Housekeeping
6431  *********************************************************************/
6432
6433 static void free_private_data(void **vp)
6434 {
6435         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6436
6437         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6438
6439         if ((*ldap_state)->result != NULL) {
6440                 ldap_msgfree((*ldap_state)->result);
6441                 (*ldap_state)->result = NULL;
6442         }
6443         if ((*ldap_state)->domain_dn != NULL) {
6444                 SAFE_FREE((*ldap_state)->domain_dn);
6445         }
6446
6447         *ldap_state = NULL;
6448
6449         /* No need to free any further, as it is talloc()ed */
6450 }
6451
6452 /*********************************************************************
6453  Intitalise the parts of the pdb_methods structure that are common to
6454  all pdb_ldap modes
6455 *********************************************************************/
6456
6457 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6458 {
6459         NTSTATUS nt_status;
6460         struct ldapsam_privates *ldap_state;
6461
6462         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6463                 return nt_status;
6464         }
6465
6466         (*pdb_method)->name = "ldapsam";
6467
6468         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6469         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6470         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6471         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6472         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6473         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6474
6475         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6476         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6477         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6478         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6479         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6480         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6481         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6482
6483         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6484         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6485
6486         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6487
6488         (*pdb_method)->capabilities = ldapsam_capabilities;
6489         (*pdb_method)->new_rid = ldapsam_new_rid;
6490
6491         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6492         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6493         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6494         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6495
6496         /* TODO: Setup private data and free */
6497
6498         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
6499                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6500                 return NT_STATUS_NO_MEMORY;
6501         }
6502
6503         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6504                                  location, &ldap_state->smbldap_state);
6505
6506         if ( !NT_STATUS_IS_OK(nt_status) ) {
6507                 return nt_status;
6508         }
6509
6510         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6511                 return NT_STATUS_NO_MEMORY;
6512         }
6513
6514         (*pdb_method)->private_data = ldap_state;
6515
6516         (*pdb_method)->free_private_data = free_private_data;
6517
6518         return NT_STATUS_OK;
6519 }
6520
6521 /**********************************************************************
6522  Initialise the 'compat' mode for pdb_ldap
6523  *********************************************************************/
6524
6525 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6526 {
6527         NTSTATUS nt_status;
6528         struct ldapsam_privates *ldap_state;
6529         char *uri = talloc_strdup( NULL, location );
6530
6531         trim_char( uri, '\"', '\"' );
6532         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6533         if ( uri )
6534                 TALLOC_FREE( uri );
6535
6536         if ( !NT_STATUS_IS_OK(nt_status) ) {
6537                 return nt_status;
6538         }
6539
6540         (*pdb_method)->name = "ldapsam_compat";
6541
6542         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6543         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6544
6545         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6546
6547         return NT_STATUS_OK;
6548 }
6549
6550 /**********************************************************************
6551  Initialise the normal mode for pdb_ldap
6552  *********************************************************************/
6553
6554 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6555 {
6556         NTSTATUS nt_status;
6557         struct ldapsam_privates *ldap_state = NULL;
6558         uint32_t alg_rid_base;
6559         char *alg_rid_base_string = NULL;
6560         LDAPMessage *result = NULL;
6561         LDAPMessage *entry = NULL;
6562         struct dom_sid ldap_domain_sid;
6563         struct dom_sid secrets_domain_sid;
6564         char *domain_sid_string = NULL;
6565         char *dn = NULL;
6566         char *uri = talloc_strdup( NULL, location );
6567
6568         trim_char( uri, '\"', '\"' );
6569         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6570
6571         TALLOC_FREE(uri);
6572
6573         if (!NT_STATUS_IS_OK(nt_status)) {
6574                 return nt_status;
6575         }
6576
6577         (*pdb_method)->name = "ldapsam";
6578
6579         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6580         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6581         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6582         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6583         (*pdb_method)->search_users = ldapsam_search_users;
6584         (*pdb_method)->search_groups = ldapsam_search_groups;
6585         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6586
6587         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6588                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6589                 (*pdb_method)->enum_group_memberships =
6590                         ldapsam_enum_group_memberships;
6591                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6592                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6593                 (*pdb_method)->uid_to_sid = ldapsam_uid_to_sid;
6594                 (*pdb_method)->gid_to_sid = ldapsam_gid_to_sid;
6595
6596                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6597                         (*pdb_method)->create_user = ldapsam_create_user;
6598                         (*pdb_method)->delete_user = ldapsam_delete_user;
6599                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6600                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6601                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6602                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6603                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6604                 }
6605         }
6606
6607         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6608         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6609
6610         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6611
6612         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6613                                                &result,
6614                                                ldap_state->domain_name, True);
6615
6616         if ( !NT_STATUS_IS_OK(nt_status) ) {
6617                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6618                           "info, nor add one to the domain\n"));
6619                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6620                              "will be unable to allocate new users/groups, "
6621                              "and will risk BDCs having inconsistant SIDs\n"));
6622                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6623                 return NT_STATUS_OK;
6624         }
6625
6626         /* Given that the above might fail, everything below this must be
6627          * optional */
6628
6629         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6630                                  result);
6631         if (!entry) {
6632                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6633                           "entry\n"));
6634                 ldap_msgfree(result);
6635                 return NT_STATUS_UNSUCCESSFUL;
6636         }
6637
6638         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
6639         if (!dn) {
6640                 ldap_msgfree(result);
6641                 return NT_STATUS_UNSUCCESSFUL;
6642         }
6643
6644         ldap_state->domain_dn = smb_xstrdup(dn);
6645         TALLOC_FREE(dn);
6646
6647         domain_sid_string = smbldap_talloc_single_attribute(
6648                     ldap_state->smbldap_state->ldap_struct,
6649                     entry,
6650                     get_userattr_key2string(ldap_state->schema_ver,
6651                                             LDAP_ATTR_USER_SID),
6652                     talloc_tos());
6653
6654         if (domain_sid_string) {
6655                 bool found_sid;
6656                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6657                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6658                                   "read as a valid SID\n", domain_sid_string));
6659                         ldap_msgfree(result);
6660                         TALLOC_FREE(domain_sid_string);
6661                         return NT_STATUS_INVALID_PARAMETER;
6662                 }
6663                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6664                                                      &secrets_domain_sid);
6665                 if (!found_sid || !sid_equal(&secrets_domain_sid,
6666                                              &ldap_domain_sid)) {
6667                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6668                                   "%s based on pdb_ldap results %s -> %s\n",
6669                                   ldap_state->domain_name,
6670                                   sid_string_dbg(&secrets_domain_sid),
6671                                   sid_string_dbg(&ldap_domain_sid)));
6672
6673                         /* reset secrets.tdb sid */
6674                         secrets_store_domain_sid(ldap_state->domain_name,
6675                                                  &ldap_domain_sid);
6676                         DEBUG(1, ("New global sam SID: %s\n",
6677                                   sid_string_dbg(get_global_sam_sid())));
6678                 }
6679                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6680                 TALLOC_FREE(domain_sid_string);
6681         }
6682
6683         alg_rid_base_string = smbldap_talloc_single_attribute(
6684                     ldap_state->smbldap_state->ldap_struct,
6685                     entry,
6686                     get_attr_key2string( dominfo_attr_list,
6687                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6688                     talloc_tos());
6689         if (alg_rid_base_string) {
6690                 alg_rid_base = (uint32_t)atol(alg_rid_base_string);
6691                 if (alg_rid_base != algorithmic_rid_base()) {
6692                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6693                                   "changed since the LDAP\n"
6694                                   "database was initialised.  Aborting. \n"));
6695                         ldap_msgfree(result);
6696                         TALLOC_FREE(alg_rid_base_string);
6697                         return NT_STATUS_UNSUCCESSFUL;
6698                 }
6699                 TALLOC_FREE(alg_rid_base_string);
6700         }
6701         ldap_msgfree(result);
6702
6703         return NT_STATUS_OK;
6704 }
6705
6706 NTSTATUS pdb_ldap_init(void)
6707 {
6708         NTSTATUS nt_status;
6709         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6710                 return nt_status;
6711
6712         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6713                 return nt_status;
6714
6715         /* Let pdb_nds register backends */
6716         pdb_nds_init();
6717
6718         return NT_STATUS_OK;
6719 }