source3/passdb/pdb_ldap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau        1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9    Copyright (C) Simo Sorce                     2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 */
  25
  26 /* TODO:
  27 *  persistent connections: if using NSS LDAP, many connections are made
  28 *      however, using only one within Samba would be nice
  29 *
  30 *  Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
  31 *
  32 *  Other LDAP based login attributes: accountExpires, etc.
  33 *  (should be the domain of Samba proper, but the sam_password/struct samu
  34 *  structures don't have fields for some of these attributes)
  35 *
  36 *  SSL is done, but can't get the certificate based authentication to work
  37 *  against on my test platform (Linux 2.4, OpenLDAP 2.x)
  38 */
  39
  40 /* NOTE: this will NOT work against an Active Directory server
  41 *  due to the fact that the two password fields cannot be retrieved
  42 *  from a server; recommend using security = domain in this situation
  43 *  and/or winbind
  44 */
  45
  46 #include "includes.h"
  47 #include "../libcli/auth/libcli_auth.h"
  48
  49 #undef DBGC_CLASS
  50 #define DBGC_CLASS DBGC_PASSDB
  51
  52 #include <lber.h>
  53 #include <ldap.h>
  54
  55 /*
  56  * Work around versions of the LDAP client libs that don't have the OIDs
  57  * defined, or have them defined under the old name.
  58  * This functionality is really a factor of the server, not the client
  59  *
  60  */
  61
  62 #if defined(LDAP_EXOP_X_MODIFY_PASSWD) && !defined(LDAP_EXOP_MODIFY_PASSWD)
  63 #define LDAP_EXOP_MODIFY_PASSWD LDAP_EXOP_X_MODIFY_PASSWD
  64 #elif !defined(LDAP_EXOP_MODIFY_PASSWD)
  65 #define LDAP_EXOP_MODIFY_PASSWD "1.3.6.1.4.1.4203.1.11.1"
  66 #endif
  67
  68 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_ID) && !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  69 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID LDAP_EXOP_X_MODIFY_PASSWD_ID
  70 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  71 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID        ((ber_tag_t) 0x80U)
  72 #endif
  73
  74 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_NEW) && !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  75 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW LDAP_EXOP_X_MODIFY_PASSWD_NEW
  76 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  77 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW       ((ber_tag_t) 0x82U)
  78 #endif
  79
  80
  81 #include "smbldap.h"
  82
  83 /**********************************************************************
  84  Simple helper function to make stuff better readable
  85  **********************************************************************/
  86
  87 static LDAP *priv2ld(struct ldapsam_privates *priv)
  88 {
  89         return priv->smbldap_state->ldap_struct;
  90 }
  91
  92 /**********************************************************************
  93  Get the attribute name given a user schame version.
  94  **********************************************************************/
  95
  96 static const char* get_userattr_key2string( int schema_ver, int key )
  97 {
  98         switch ( schema_ver ) {
  99                 case SCHEMAVER_SAMBAACCOUNT:
 100                         return get_attr_key2string( attrib_map_v22, key );
 101
 102                 case SCHEMAVER_SAMBASAMACCOUNT:
 103                         return get_attr_key2string( attrib_map_v30, key );
 104
 105                 default:
 106                         DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
 107                         break;
 108         }
 109         return NULL;
 110 }
 111
 112 /**********************************************************************
 113  Return the list of attribute names given a user schema version.
 114 **********************************************************************/
 115
 116 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
 117 {
 118         switch ( schema_ver ) {
 119                 case SCHEMAVER_SAMBAACCOUNT:
 120                         return get_attr_list( mem_ctx, attrib_map_v22 );
 121
 122                 case SCHEMAVER_SAMBASAMACCOUNT:
 123                         return get_attr_list( mem_ctx, attrib_map_v30 );
 124                 default:
 125                         DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
 126                         break;
 127         }
 128
 129         return NULL;
 130 }
 131
 132 /**************************************************************************
 133  Return the list of attribute names to delete given a user schema version.
 134 **************************************************************************/
 135
 136 static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
 137                                               int schema_ver )
 138 {
 139         switch ( schema_ver ) {
 140                 case SCHEMAVER_SAMBAACCOUNT:
 141                         return get_attr_list( mem_ctx,
 142                                               attrib_map_to_delete_v22 );
 143
 144                 case SCHEMAVER_SAMBASAMACCOUNT:
 145                         return get_attr_list( mem_ctx,
 146                                               attrib_map_to_delete_v30 );
 147                 default:
 148                         DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
 149                         break;
 150         }
 151
 152         return NULL;
 153 }
 154
 155
 156 /*******************************************************************
 157  Generate the LDAP search filter for the objectclass based on the
 158  version of the schema we are using.
 159 ******************************************************************/
 160
 161 static const char* get_objclass_filter( int schema_ver )
 162 {
 163         fstring objclass_filter;
 164         char *result;
 165
 166         switch( schema_ver ) {
 167                 case SCHEMAVER_SAMBAACCOUNT:
 168                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 169                         break;
 170                 case SCHEMAVER_SAMBASAMACCOUNT:
 171                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 172                         break;
 173                 default:
 174                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 175                         objclass_filter[0] = '\0';
 176                         break;
 177         }
 178
 179         result = talloc_strdup(talloc_tos(), objclass_filter);
 180         SMB_ASSERT(result != NULL);
 181         return result;
 182 }
 183
 184 /*****************************************************************
 185  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 186 ******************************************************************/
 187
 188 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 189 {
 190         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 191         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 192         LDAPMessage *msg = NULL;
 193         LDAPMessage *entry = NULL;
 194         TALLOC_CTX *mem_ctx;
 195         char **values = NULL;
 196         int rc, num_result, num_values, rid;
 197         char *suffix = NULL;
 198         char *tok;
 199         const char *p;
 200         const char **attrs;
 201
 202         /* Unfortunatly there is no proper way to detect syncrepl-support in
 203          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 204          * but do not show up in the root-DSE yet. Neither we can query the
 205          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 206          * objectclass. Currently we require lp_ldap_suffix() to show up as
 207          * namingContext.  -  Guenther
 208          */
 209
 210         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 211                 return ntstatus;
 212         }
 213
 214         if (!seq_num) {
 215                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 216                 return ntstatus;
 217         }
 218
 219         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 220                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 221                          "as top-level namingContext\n", lp_ldap_suffix()));
 222                 return ntstatus;
 223         }
 224
 225         mem_ctx = talloc_init("ldapsam_get_seq_num");
 226
 227         if (mem_ctx == NULL)
 228                 return NT_STATUS_NO_MEMORY;
 229
 230         if ((attrs = TALLOC_ARRAY(mem_ctx, const char *, 2)) == NULL) {
 231                 ntstatus = NT_STATUS_NO_MEMORY;
 232                 goto done;
 233         }
 234
 235         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 236         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 237         if (rid > 0) {
 238
 239                 /* consumer syncreplCookie: */
 240                 /* csn=20050126161620Z#0000001#00#00000 */
 241                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 242                 attrs[1] = NULL;
 243                 suffix = talloc_asprintf(mem_ctx,
 244                                 "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 245                 if (!suffix) {
 246                         ntstatus = NT_STATUS_NO_MEMORY;
 247                         goto done;
 248                 }
 249         } else {
 250
 251                 /* provider contextCSN */
 252                 /* 20050126161620Z#000009#00#000000 */
 253                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 254                 attrs[1] = NULL;
 255                 suffix = talloc_asprintf(mem_ctx,
 256                                 "cn=ldapsync,%s", lp_ldap_suffix());
 257
 258                 if (!suffix) {
 259                         ntstatus = NT_STATUS_NO_MEMORY;
 260                         goto done;
 261                 }
 262         }
 263
 264         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 265                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 266
 267         if (rc != LDAP_SUCCESS) {
 268                 goto done;
 269         }
 270
 271         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 272         if (num_result != 1) {
 273                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 274                 goto done;
 275         }
 276
 277         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 278         if (entry == NULL) {
 279                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 280                 goto done;
 281         }
 282
 283         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 284         if (values == NULL) {
 285                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 286                 goto done;
 287         }
 288
 289         num_values = ldap_count_values(values);
 290         if (num_values == 0) {
 291                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 292                 goto done;
 293         }
 294
 295         p = values[0];
 296         if (!next_token_talloc(mem_ctx, &p, &tok, "#")) {
 297                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 298                 goto done;
 299         }
 300
 301         p = tok;
 302         if (!strncmp(p, "csn=", strlen("csn=")))
 303                 p += strlen("csn=");
 304
 305         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 306
 307         *seq_num = generalized_to_unix_time(p);
 308
 309         /* very basic sanity check */
 310         if (*seq_num <= 0) {
 311                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 312                         (int)*seq_num));
 313                 goto done;
 314         }
 315
 316         ntstatus = NT_STATUS_OK;
 317
 318  done:
 319         if (values != NULL)
 320                 ldap_value_free(values);
 321         if (msg != NULL)
 322                 ldap_msgfree(msg);
 323         if (mem_ctx)
 324                 talloc_destroy(mem_ctx);
 325
 326         return ntstatus;
 327 }
 328
 329 /*******************************************************************
 330  Run the search by name.
 331 ******************************************************************/
 332
 333 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 334                                           const char *user,
 335                                           LDAPMessage ** result,
 336                                           const char **attr)
 337 {
 338         char *filter = NULL;
 339         char *escape_user = escape_ldap_string(talloc_tos(), user);
 340         int ret = -1;
 341
 342         if (!escape_user) {
 343                 return LDAP_NO_MEMORY;
 344         }
 345
 346         /*
 347          * in the filter expression, replace %u with the real name
 348          * so in ldap filter, %u MUST exist :-)
 349          */
 350         filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
 351                 get_objclass_filter(ldap_state->schema_ver));
 352         if (!filter) {
 353                 TALLOC_FREE(escape_user);
 354                 return LDAP_NO_MEMORY;
 355         }
 356         /*
 357          * have to use this here because $ is filtered out
 358          * in string_sub
 359          */
 360
 361         filter = talloc_all_string_sub(talloc_tos(),
 362                                 filter, "%u", escape_user);
 363         TALLOC_FREE(escape_user);
 364         if (!filter) {
 365                 return LDAP_NO_MEMORY;
 366         }
 367
 368         ret = smbldap_search_suffix(ldap_state->smbldap_state,
 369                         filter, attr, result);
 370         TALLOC_FREE(filter);
 371         return ret;
 372 }
 373
 374 /*******************************************************************
 375  Run the search by rid.
 376 ******************************************************************/
 377
 378 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 379                                          uint32 rid, LDAPMessage ** result,
 380                                          const char **attr)
 381 {
 382         char *filter = NULL;
 383         int rc;
 384
 385         filter = talloc_asprintf(talloc_tos(), "(&(rid=%i)%s)", rid,
 386                 get_objclass_filter(ldap_state->schema_ver));
 387         if (!filter) {
 388                 return LDAP_NO_MEMORY;
 389         }
 390
 391         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 392                         filter, attr, result);
 393         TALLOC_FREE(filter);
 394         return rc;
 395 }
 396
 397 /*******************************************************************
 398  Run the search by SID.
 399 ******************************************************************/
 400
 401 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 402                                  const DOM_SID *sid, LDAPMessage ** result,
 403                                  const char **attr)
 404 {
 405         char *filter = NULL;
 406         int rc;
 407         fstring sid_string;
 408
 409         filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
 410                 get_userattr_key2string(ldap_state->schema_ver,
 411                         LDAP_ATTR_USER_SID),
 412                 sid_to_fstring(sid_string, sid),
 413                 get_objclass_filter(ldap_state->schema_ver));
 414         if (!filter) {
 415                 return LDAP_NO_MEMORY;
 416         }
 417
 418         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 419                         filter, attr, result);
 420
 421         TALLOC_FREE(filter);
 422         return rc;
 423 }
 424
 425 /*******************************************************************
 426  Delete complete object or objectclass and attrs from
 427  object found in search_result depending on lp_ldap_delete_dn
 428 ******************************************************************/
 429
 430 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 431                                 TALLOC_CTX *mem_ctx,
 432                                 LDAPMessage *entry,
 433                                 const char *objectclass,
 434                                 const char **attrs)
 435 {
 436         LDAPMod **mods = NULL;
 437         char *name;
 438         const char *dn;
 439         BerElement *ptr = NULL;
 440
 441         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 442         if (dn == NULL) {
 443                 return LDAP_NO_MEMORY;
 444         }
 445
 446         if (lp_ldap_delete_dn()) {
 447                 return smbldap_delete(priv->smbldap_state, dn);
 448         }
 449
 450         /* Ok, delete only the SAM attributes */
 451
 452         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 453              name != NULL;
 454              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 455                 const char **attrib;
 456
 457                 /* We are only allowed to delete the attributes that
 458                    really exist. */
 459
 460                 for (attrib = attrs; *attrib != NULL; attrib++) {
 461                         if (strequal(*attrib, name)) {
 462                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 463                                            "attribute %s\n", name));
 464                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 465                                                 NULL);
 466                         }
 467                 }
 468                 ldap_memfree(name);
 469         }
 470
 471         if (ptr != NULL) {
 472                 ber_free(ptr, 0);
 473         }
 474
 475         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 476         talloc_autofree_ldapmod(mem_ctx, mods);
 477
 478         return smbldap_modify(priv->smbldap_state, dn, mods);
 479 }
 480
 481 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 482 {
 483         char *temp;
 484         struct tm tm;
 485
 486         temp = smbldap_talloc_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 487                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 488                         talloc_tos());
 489         if (!temp) {
 490                 return (time_t) 0;
 491         }
 492
 493         if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
 494                 DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
 495                         (char*)temp));
 496                 TALLOC_FREE(temp);
 497                 return (time_t) 0;
 498         }
 499         TALLOC_FREE(temp);
 500         tzset();
 501         return timegm(&tm);
 502 }
 503
 504 /**********************************************************************
 505  Initialize struct samu from an LDAP query.
 506  (Based on init_sam_from_buffer in pdb_tdb.c)
 507 *********************************************************************/
 508
 509 static bool init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 510                                 struct samu * sampass,
 511                                 LDAPMessage * entry)
 512 {
 513         time_t  logon_time,
 514                         logoff_time,
 515                         kickoff_time,
 516                         pass_last_set_time,
 517                         pass_can_change_time,
 518                         pass_must_change_time,
 519                         ldap_entry_time,
 520                         bad_password_time;
 521         char *username = NULL,
 522                         *domain = NULL,
 523                         *nt_username = NULL,
 524                         *fullname = NULL,
 525                         *homedir = NULL,
 526                         *dir_drive = NULL,
 527                         *logon_script = NULL,
 528                         *profile_path = NULL,
 529                         *acct_desc = NULL,
 530                         *workstations = NULL,
 531                         *munged_dial = NULL;
 532         uint32          user_rid;
 533         uint8           smblmpwd[LM_HASH_LEN],
 534                         smbntpwd[NT_HASH_LEN];
 535         bool            use_samba_attrs = True;
 536         uint32          acct_ctrl = 0;
 537         uint16          logon_divs;
 538         uint16          bad_password_count = 0,
 539                         logon_count = 0;
 540         uint32 hours_len;
 541         uint8           hours[MAX_HOURS_LEN];
 542         char *temp = NULL;
 543         LOGIN_CACHE     *cache_entry = NULL;
 544         uint32          pwHistLen;
 545         bool expand_explicit = lp_passdb_expand_explicit();
 546         bool ret = false;
 547         TALLOC_CTX *ctx = talloc_init("init_sam_from_ldap");
 548
 549         if (!ctx) {
 550                 return false;
 551         }
 552         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 553                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 554                 goto fn_exit;
 555         }
 556
 557         if (priv2ld(ldap_state) == NULL) {
 558                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 559                           "ldap_struct is NULL!\n"));
 560                 goto fn_exit;
 561         }
 562
 563         if (!(username = smbldap_talloc_smallest_attribute(priv2ld(ldap_state),
 564                                         entry,
 565                                         "uid",
 566                                         ctx))) {
 567                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 568                           "this user!\n"));
 569                 goto fn_exit;
 570         }
 571
 572         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 573
 574         nt_username = talloc_strdup(ctx, username);
 575         if (!nt_username) {
 576                 goto fn_exit;
 577         }
 578
 579         domain = talloc_strdup(ctx, ldap_state->domain_name);
 580         if (!domain) {
 581                 goto fn_exit;
 582         }
 583
 584         pdb_set_username(sampass, username, PDB_SET);
 585
 586         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 587         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 588
 589         /* deal with different attributes between the schema first */
 590
 591         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 592                 if ((temp = smbldap_talloc_single_attribute(
 593                                 ldap_state->smbldap_state->ldap_struct,
 594                                 entry,
 595                                 get_userattr_key2string(ldap_state->schema_ver,
 596                                         LDAP_ATTR_USER_SID),
 597                                 ctx))!=NULL) {
 598                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 599                 }
 600         } else {
 601                 if ((temp = smbldap_talloc_single_attribute(
 602                                 ldap_state->smbldap_state->ldap_struct,
 603                                 entry,
 604                                 get_userattr_key2string(ldap_state->schema_ver,
 605                                         LDAP_ATTR_USER_RID),
 606                                 ctx))!=NULL) {
 607                         user_rid = (uint32)atol(temp);
 608                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 609                 }
 610         }
 611
 612         if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
 613                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 614                         get_userattr_key2string(ldap_state->schema_ver,
 615                                 LDAP_ATTR_USER_SID),
 616                         get_userattr_key2string(ldap_state->schema_ver,
 617                                 LDAP_ATTR_USER_RID),
 618                         username));
 619                 return False;
 620         }
 621
 622         temp = smbldap_talloc_single_attribute(
 623                         ldap_state->smbldap_state->ldap_struct,
 624                         entry,
 625                         get_userattr_key2string(ldap_state->schema_ver,
 626                                 LDAP_ATTR_PWD_LAST_SET),
 627                         ctx);
 628         if (temp) {
 629                 pass_last_set_time = (time_t) atol(temp);
 630                 pdb_set_pass_last_set_time(sampass,
 631                                 pass_last_set_time, PDB_SET);
 632         }
 633
 634         temp = smbldap_talloc_single_attribute(
 635                         ldap_state->smbldap_state->ldap_struct,
 636                         entry,
 637                         get_userattr_key2string(ldap_state->schema_ver,
 638                                 LDAP_ATTR_LOGON_TIME),
 639                         ctx);
 640         if (temp) {
 641                 logon_time = (time_t) atol(temp);
 642                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 643         }
 644
 645         temp = smbldap_talloc_single_attribute(
 646                         ldap_state->smbldap_state->ldap_struct,
 647                         entry,
 648                         get_userattr_key2string(ldap_state->schema_ver,
 649                                 LDAP_ATTR_LOGOFF_TIME),
 650                         ctx);
 651         if (temp) {
 652                 logoff_time = (time_t) atol(temp);
 653                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 654         }
 655
 656         temp = smbldap_talloc_single_attribute(
 657                         ldap_state->smbldap_state->ldap_struct,
 658                         entry,
 659                         get_userattr_key2string(ldap_state->schema_ver,
 660                                 LDAP_ATTR_KICKOFF_TIME),
 661                         ctx);
 662         if (temp) {
 663                 kickoff_time = (time_t) atol(temp);
 664                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 665         }
 666
 667         temp = smbldap_talloc_single_attribute(
 668                         ldap_state->smbldap_state->ldap_struct,
 669                         entry,
 670                         get_userattr_key2string(ldap_state->schema_ver,
 671                                 LDAP_ATTR_PWD_CAN_CHANGE),
 672                         ctx);
 673         if (temp) {
 674                 pass_can_change_time = (time_t) atol(temp);
 675                 pdb_set_pass_can_change_time(sampass,
 676                                 pass_can_change_time, PDB_SET);
 677         }
 678
 679         temp = smbldap_talloc_single_attribute(
 680                         ldap_state->smbldap_state->ldap_struct,
 681                         entry,
 682                         get_userattr_key2string(ldap_state->schema_ver,
 683                                 LDAP_ATTR_PWD_MUST_CHANGE),
 684                         ctx);
 685         if (temp) {
 686                 pass_must_change_time = (time_t) atol(temp);
 687                 pdb_set_pass_must_change_time(sampass,
 688                                 pass_must_change_time, PDB_SET);
 689         }
 690
 691         /* recommend that 'gecos' and 'displayName' should refer to the same
 692          * attribute OID.  userFullName depreciated, only used by Samba
 693          * primary rules of LDAP: don't make a new attribute when one is already defined
 694          * that fits your needs; using cn then displayName rather than 'userFullName'
 695          */
 696
 697         fullname = smbldap_talloc_single_attribute(
 698                         ldap_state->smbldap_state->ldap_struct,
 699                         entry,
 700                         get_userattr_key2string(ldap_state->schema_ver,
 701                                 LDAP_ATTR_DISPLAY_NAME),
 702                         ctx);
 703         if (fullname) {
 704                 pdb_set_fullname(sampass, fullname, PDB_SET);
 705         } else {
 706                 fullname = smbldap_talloc_single_attribute(
 707                                 ldap_state->smbldap_state->ldap_struct,
 708                                 entry,
 709                                 get_userattr_key2string(ldap_state->schema_ver,
 710                                         LDAP_ATTR_CN),
 711                                 ctx);
 712                 if (fullname) {
 713                         pdb_set_fullname(sampass, fullname, PDB_SET);
 714                 }
 715         }
 716
 717         dir_drive = smbldap_talloc_single_attribute(
 718                         ldap_state->smbldap_state->ldap_struct,
 719                         entry,
 720                         get_userattr_key2string(ldap_state->schema_ver,
 721                                 LDAP_ATTR_HOME_DRIVE),
 722                         ctx);
 723         if (dir_drive) {
 724                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 725         } else {
 726                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 727         }
 728
 729         homedir = smbldap_talloc_single_attribute(
 730                         ldap_state->smbldap_state->ldap_struct,
 731                         entry,
 732                         get_userattr_key2string(ldap_state->schema_ver,
 733                                 LDAP_ATTR_HOME_PATH),
 734                         ctx);
 735         if (homedir) {
 736                 if (expand_explicit) {
 737                         homedir = talloc_sub_basic(ctx,
 738                                                 username,
 739                                                 domain,
 740                                                 homedir);
 741                         if (!homedir) {
 742                                 goto fn_exit;
 743                         }
 744                 }
 745                 pdb_set_homedir(sampass, homedir, PDB_SET);
 746         } else {
 747                 pdb_set_homedir(sampass,
 748                         talloc_sub_basic(ctx, username, domain,
 749                                          lp_logon_home()),
 750                         PDB_DEFAULT);
 751         }
 752
 753         logon_script = smbldap_talloc_single_attribute(
 754                         ldap_state->smbldap_state->ldap_struct,
 755                         entry,
 756                         get_userattr_key2string(ldap_state->schema_ver,
 757                                 LDAP_ATTR_LOGON_SCRIPT),
 758                         ctx);
 759         if (logon_script) {
 760                 if (expand_explicit) {
 761                         logon_script = talloc_sub_basic(ctx,
 762                                                 username,
 763                                                 domain,
 764                                                 logon_script);
 765                         if (!logon_script) {
 766                                 goto fn_exit;
 767                         }
 768                 }
 769                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
 770         } else {
 771                 pdb_set_logon_script(sampass,
 772                         talloc_sub_basic(ctx, username, domain,
 773                                          lp_logon_script()),
 774                         PDB_DEFAULT );
 775         }
 776
 777         profile_path = smbldap_talloc_single_attribute(
 778                         ldap_state->smbldap_state->ldap_struct,
 779                         entry,
 780                         get_userattr_key2string(ldap_state->schema_ver,
 781                                 LDAP_ATTR_PROFILE_PATH),
 782                         ctx);
 783         if (profile_path) {
 784                 if (expand_explicit) {
 785                         profile_path = talloc_sub_basic(ctx,
 786                                                 username,
 787                                                 domain,
 788                                                 profile_path);
 789                         if (!profile_path) {
 790                                 goto fn_exit;
 791                         }
 792                 }
 793                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
 794         } else {
 795                 pdb_set_profile_path(sampass,
 796                         talloc_sub_basic(ctx, username, domain,
 797                                           lp_logon_path()),
 798                         PDB_DEFAULT );
 799         }
 800
 801         acct_desc = smbldap_talloc_single_attribute(
 802                         ldap_state->smbldap_state->ldap_struct,
 803                         entry,
 804                         get_userattr_key2string(ldap_state->schema_ver,
 805                                 LDAP_ATTR_DESC),
 806                         ctx);
 807         if (acct_desc) {
 808                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 809         }
 810
 811         workstations = smbldap_talloc_single_attribute(
 812                         ldap_state->smbldap_state->ldap_struct,
 813                         entry,
 814                         get_userattr_key2string(ldap_state->schema_ver,
 815                                 LDAP_ATTR_USER_WKS),
 816                         ctx);
 817         if (workstations) {
 818                 pdb_set_workstations(sampass, workstations, PDB_SET);
 819         }
 820
 821         munged_dial = smbldap_talloc_single_attribute(
 822                         ldap_state->smbldap_state->ldap_struct,
 823                         entry,
 824                         get_userattr_key2string(ldap_state->schema_ver,
 825                                 LDAP_ATTR_MUNGED_DIAL),
 826                         ctx);
 827         if (munged_dial) {
 828                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 829         }
 830
 831         /* FIXME: hours stuff should be cleaner */
 832
 833         logon_divs = 168;
 834         hours_len = 21;
 835         memset(hours, 0xff, hours_len);
 836
 837         if (ldap_state->is_nds_ldap) {
 838                 char *user_dn;
 839                 size_t pwd_len;
 840                 char clear_text_pw[512];
 841
 842                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 843                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 844                 user_dn = smbldap_talloc_dn(ctx, ldap_state->smbldap_state->ldap_struct, entry);
 845                 if (user_dn != NULL) {
 846                         DEBUG(3, ("init_sam_from_ldap: smbldap_talloc_dn(ctx, %s) returned '%s'\n", username, user_dn));
 847
 848                         pwd_len = sizeof(clear_text_pw);
 849                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 850                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 851                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 852                                         TALLOC_FREE(user_dn);
 853                                         return False;
 854                                 }
 855                                 ZERO_STRUCT(smblmpwd);
 856                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 857                                         TALLOC_FREE(user_dn);
 858                                         return False;
 859                                 }
 860                                 ZERO_STRUCT(smbntpwd);
 861                                 use_samba_attrs = False;
 862                         }
 863
 864                         TALLOC_FREE(user_dn);
 865
 866                 } else {
 867                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 868                 }
 869         }
 870
 871         if (use_samba_attrs) {
 872                 temp = smbldap_talloc_single_attribute(
 873                                 ldap_state->smbldap_state->ldap_struct,
 874                                 entry,
 875                                 get_userattr_key2string(ldap_state->schema_ver,
 876                                         LDAP_ATTR_LMPW),
 877                                 ctx);
 878                 if (temp) {
 879                         pdb_gethexpwd(temp, smblmpwd);
 880                         memset((char *)temp, '\0', strlen(temp)+1);
 881                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 882                                 goto fn_exit;
 883                         }
 884                         ZERO_STRUCT(smblmpwd);
 885                 }
 886
 887                 temp = smbldap_talloc_single_attribute(
 888                                 ldap_state->smbldap_state->ldap_struct,
 889                                 entry,
 890                                 get_userattr_key2string(ldap_state->schema_ver,
 891                                         LDAP_ATTR_NTPW),
 892                                 ctx);
 893                 if (temp) {
 894                         pdb_gethexpwd(temp, smbntpwd);
 895                         memset((char *)temp, '\0', strlen(temp)+1);
 896                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 897                                 goto fn_exit;
 898                         }
 899                         ZERO_STRUCT(smbntpwd);
 900                 }
 901         }
 902
 903         pwHistLen = 0;
 904
 905         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
 906         if (pwHistLen > 0){
 907                 uint8 *pwhist = NULL;
 908                 int i;
 909                 char *history_string = TALLOC_ARRAY(ctx, char,
 910                                                 MAX_PW_HISTORY_LEN*64);
 911
 912                 if (!history_string) {
 913                         goto fn_exit;
 914                 }
 915
 916                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 917
 918                 if ((pwhist = TALLOC_ARRAY(ctx, uint8,
 919                                         pwHistLen * PW_HISTORY_ENTRY_LEN)) ==
 920                                 NULL){
 921                         DEBUG(0, ("init_sam_from_ldap: talloc failed!\n"));
 922                         goto fn_exit;
 923                 }
 924                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 925
 926                 if (smbldap_get_single_attribute(
 927                                 ldap_state->smbldap_state->ldap_struct,
 928                                 entry,
 929                                 get_userattr_key2string(ldap_state->schema_ver,
 930                                         LDAP_ATTR_PWD_HISTORY),
 931                                 history_string,
 932                                 MAX_PW_HISTORY_LEN*64)) {
 933                         bool hex_failed = false;
 934                         for (i = 0; i < pwHistLen; i++){
 935                                 /* Get the 16 byte salt. */
 936                                 if (!pdb_gethexpwd(&history_string[i*64],
 937                                         &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 938                                         hex_failed = true;
 939                                         break;
 940                                 }
 941                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 942                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 943                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+
 944                                                 PW_HISTORY_SALT_LEN])) {
 945                                         hex_failed = True;
 946                                         break;
 947                                 }
 948                         }
 949                         if (hex_failed) {
 950                                 DEBUG(2,("init_sam_from_ldap: Failed to get password history for user %s\n",
 951                                         username));
 952                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 953                         }
 954                 }
 955                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 956                         goto fn_exit;
 957                 }
 958         }
 959
 960         temp = smbldap_talloc_single_attribute(
 961                         ldap_state->smbldap_state->ldap_struct,
 962                         entry,
 963                         get_userattr_key2string(ldap_state->schema_ver,
 964                                 LDAP_ATTR_ACB_INFO),
 965                         ctx);
 966         if (temp) {
 967                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 968
 969                 if (acct_ctrl == 0) {
 970                         acct_ctrl |= ACB_NORMAL;
 971                 }
 972
 973                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 974         } else {
 975                 acct_ctrl |= ACB_NORMAL;
 976         }
 977
 978         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 979         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 980
 981         temp = smbldap_talloc_single_attribute(
 982                         ldap_state->smbldap_state->ldap_struct,
 983                         entry,
 984                         get_userattr_key2string(ldap_state->schema_ver,
 985                                 LDAP_ATTR_BAD_PASSWORD_COUNT),
 986                         ctx);
 987         if (temp) {
 988                 bad_password_count = (uint32) atol(temp);
 989                 pdb_set_bad_password_count(sampass,
 990                                 bad_password_count, PDB_SET);
 991         }
 992
 993         temp = smbldap_talloc_single_attribute(
 994                         ldap_state->smbldap_state->ldap_struct,
 995                         entry,
 996                         get_userattr_key2string(ldap_state->schema_ver,
 997                                 LDAP_ATTR_BAD_PASSWORD_TIME),
 998                         ctx);
 999         if (temp) {
1000                 bad_password_time = (time_t) atol(temp);
1001                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
1002         }
1003
1004
1005         temp = smbldap_talloc_single_attribute(
1006                         ldap_state->smbldap_state->ldap_struct,
1007                         entry,
1008                         get_userattr_key2string(ldap_state->schema_ver,
1009                                 LDAP_ATTR_LOGON_COUNT),
1010                         ctx);
1011         if (temp) {
1012                 logon_count = (uint32) atol(temp);
1013                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
1014         }
1015
1016         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
1017
1018         temp = smbldap_talloc_single_attribute(
1019                         ldap_state->smbldap_state->ldap_struct,
1020                         entry,
1021                         get_userattr_key2string(ldap_state->schema_ver,
1022                                 LDAP_ATTR_LOGON_HOURS),
1023                         ctx);
1024         if (temp) {
1025                 pdb_gethexhours(temp, hours);
1026                 memset((char *)temp, '\0', strlen(temp) +1);
1027                 pdb_set_hours(sampass, hours, PDB_SET);
1028                 ZERO_STRUCT(hours);
1029         }
1030
1031         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
1032                 temp = smbldap_talloc_single_attribute(
1033                                 priv2ld(ldap_state),
1034                                 entry,
1035                                 "uidNumber",
1036                                 ctx);
1037                 if (temp) {
1038                         /* We've got a uid, feed the cache */
1039                         uid_t uid = strtoul(temp, NULL, 10);
1040                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
1041                 }
1042         }
1043
1044         /* check the timestamp of the cache vs ldap entry */
1045         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
1046                                                             entry))) {
1047                 ret = true;
1048                 goto fn_exit;
1049         }
1050
1051         /* see if we have newer updates */
1052         if (!(cache_entry = login_cache_read(sampass))) {
1053                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
1054                            (unsigned int)pdb_get_bad_password_count(sampass),
1055                            (unsigned int)pdb_get_bad_password_time(sampass)));
1056                 ret = true;
1057                 goto fn_exit;
1058         }
1059
1060         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
1061                   (unsigned int)ldap_entry_time,
1062                   (unsigned int)cache_entry->entry_timestamp,
1063                   (unsigned int)cache_entry->bad_password_time));
1064
1065         if (ldap_entry_time > cache_entry->entry_timestamp) {
1066                 /* cache is older than directory , so
1067                    we need to delete the entry but allow the
1068                    fields to be written out */
1069                 login_cache_delentry(sampass);
1070         } else {
1071                 /* read cache in */
1072                 pdb_set_acct_ctrl(sampass,
1073                                   pdb_get_acct_ctrl(sampass) |
1074                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
1075                                   PDB_SET);
1076                 pdb_set_bad_password_count(sampass,
1077                                            cache_entry->bad_password_count,
1078                                            PDB_SET);
1079                 pdb_set_bad_password_time(sampass,
1080                                           cache_entry->bad_password_time,
1081                                           PDB_SET);
1082         }
1083
1084         ret = true;
1085
1086   fn_exit:
1087
1088         TALLOC_FREE(ctx);
1089         SAFE_FREE(cache_entry);
1090         return ret;
1091 }
1092
1093 /**********************************************************************
1094  Initialize the ldap db from a struct samu. Called on update.
1095  (Based on init_buffer_from_sam in pdb_tdb.c)
1096 *********************************************************************/
1097
1098 static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
1099                                 LDAPMessage *existing,
1100                                 LDAPMod *** mods, struct samu * sampass,
1101                                 bool (*need_update)(const struct samu *,
1102                                                     enum pdb_elements))
1103 {
1104         char *temp = NULL;
1105         uint32 rid;
1106
1107         if (mods == NULL || sampass == NULL) {
1108                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
1109                 return False;
1110         }
1111
1112         *mods = NULL;
1113
1114         /*
1115          * took out adding "objectclass: sambaAccount"
1116          * do this on a per-mod basis
1117          */
1118         if (need_update(sampass, PDB_USERNAME)) {
1119                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1120                               "uid", pdb_get_username(sampass));
1121                 if (ldap_state->is_nds_ldap) {
1122                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1123                                       "cn", pdb_get_username(sampass));
1124                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1125                                       "sn", pdb_get_username(sampass));
1126                 }
1127         }
1128
1129         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
1130
1131         /* only update the RID if we actually need to */
1132         if (need_update(sampass, PDB_USERSID)) {
1133                 fstring sid_string;
1134                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
1135
1136                 switch ( ldap_state->schema_ver ) {
1137                         case SCHEMAVER_SAMBAACCOUNT:
1138                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
1139                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1140                                                   sid_string_dbg(user_sid),
1141                                                   sid_string_dbg(
1142                                                           &ldap_state->domain_sid)));
1143                                         return False;
1144                                 }
1145                                 if (asprintf(&temp, "%i", rid) < 0) {
1146                                         return false;
1147                                 }
1148                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1149                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
1150                                         temp);
1151                                 SAFE_FREE(temp);
1152                                 break;
1153
1154                         case SCHEMAVER_SAMBASAMACCOUNT:
1155                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1156                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1157                                         sid_to_fstring(sid_string, user_sid));
1158                                 break;
1159
1160                         default:
1161                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1162                                 break;
1163                 }
1164         }
1165
1166         /* we don't need to store the primary group RID - so leaving it
1167            'free' to hang off the unix primary group makes life easier */
1168
1169         if (need_update(sampass, PDB_GROUPSID)) {
1170                 fstring sid_string;
1171                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1172
1173                 switch ( ldap_state->schema_ver ) {
1174                         case SCHEMAVER_SAMBAACCOUNT:
1175                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1176                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1177                                                   sid_string_dbg(group_sid),
1178                                                   sid_string_dbg(
1179                                                           &ldap_state->domain_sid)));
1180                                         return False;
1181                                 }
1182
1183                                 if (asprintf(&temp, "%i", rid) < 0) {
1184                                         return false;
1185                                 }
1186                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1187                                         get_userattr_key2string(ldap_state->schema_ver,
1188                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1189                                 SAFE_FREE(temp);
1190                                 break;
1191
1192                         case SCHEMAVER_SAMBASAMACCOUNT:
1193                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1194                                         get_userattr_key2string(ldap_state->schema_ver,
1195                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_fstring(sid_string, group_sid));
1196                                 break;
1197
1198                         default:
1199                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1200                                 break;
1201                 }
1202
1203         }
1204
1205         /* displayName, cn, and gecos should all be the same
1206          *  most easily accomplished by giving them the same OID
1207          *  gecos isn't set here b/c it should be handled by the
1208          *  add-user script
1209          *  We change displayName only and fall back to cn if
1210          *  it does not exist.
1211          */
1212
1213         if (need_update(sampass, PDB_FULLNAME))
1214                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1215                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1216                         pdb_get_fullname(sampass));
1217
1218         if (need_update(sampass, PDB_ACCTDESC))
1219                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1220                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1221                         pdb_get_acct_desc(sampass));
1222
1223         if (need_update(sampass, PDB_WORKSTATIONS))
1224                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1225                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1226                         pdb_get_workstations(sampass));
1227
1228         if (need_update(sampass, PDB_MUNGEDDIAL))
1229                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1230                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1231                         pdb_get_munged_dial(sampass));
1232
1233         if (need_update(sampass, PDB_SMBHOME))
1234                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1235                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1236                         pdb_get_homedir(sampass));
1237
1238         if (need_update(sampass, PDB_DRIVE))
1239                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1240                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1241                         pdb_get_dir_drive(sampass));
1242
1243         if (need_update(sampass, PDB_LOGONSCRIPT))
1244                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1245                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1246                         pdb_get_logon_script(sampass));
1247
1248         if (need_update(sampass, PDB_PROFILE))
1249                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1250                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1251                         pdb_get_profile_path(sampass));
1252
1253         if (asprintf(&temp, "%li", (long int)pdb_get_logon_time(sampass)) < 0) {
1254                 return false;
1255         }
1256         if (need_update(sampass, PDB_LOGONTIME))
1257                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1258                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1259         SAFE_FREE(temp);
1260
1261         if (asprintf(&temp, "%li", (long int)pdb_get_logoff_time(sampass)) < 0) {
1262                 return false;
1263         }
1264         if (need_update(sampass, PDB_LOGOFFTIME))
1265                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1266                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1267         SAFE_FREE(temp);
1268
1269         if (asprintf(&temp, "%li", (long int)pdb_get_kickoff_time(sampass)) < 0) {
1270                 return false;
1271         }
1272         if (need_update(sampass, PDB_KICKOFFTIME))
1273                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1274                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1275         SAFE_FREE(temp);
1276
1277         if (asprintf(&temp, "%li", (long int)pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
1278                 return false;
1279         }
1280         if (need_update(sampass, PDB_CANCHANGETIME))
1281                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1282                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1283         SAFE_FREE(temp);
1284
1285         if (asprintf(&temp, "%li", (long int)pdb_get_pass_must_change_time(sampass)) < 0) {
1286                 return false;
1287         }
1288         if (need_update(sampass, PDB_MUSTCHANGETIME))
1289                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1290                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1291         SAFE_FREE(temp);
1292
1293         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1294                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1295
1296                 if (need_update(sampass, PDB_LMPASSWD)) {
1297                         const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
1298                         if (lm_pw) {
1299                                 char pwstr[34];
1300                                 pdb_sethexpwd(pwstr, lm_pw,
1301                                               pdb_get_acct_ctrl(sampass));
1302                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1303                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1304                                                  pwstr);
1305                         } else {
1306                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1307                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1308                                                  NULL);
1309                         }
1310                 }
1311                 if (need_update(sampass, PDB_NTPASSWD)) {
1312                         const uchar *nt_pw = pdb_get_nt_passwd(sampass);
1313                         if (nt_pw) {
1314                                 char pwstr[34];
1315                                 pdb_sethexpwd(pwstr, nt_pw,
1316                                               pdb_get_acct_ctrl(sampass));
1317                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1318                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1319                                                  pwstr);
1320                         } else {
1321                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1322                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1323                                                  NULL);
1324                         }
1325                 }
1326
1327                 if (need_update(sampass, PDB_PWHISTORY)) {
1328                         char *pwstr = NULL;
1329                         uint32 pwHistLen = 0;
1330                         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1331
1332                         pwstr = SMB_MALLOC_ARRAY(char, 1024);
1333                         if (!pwstr) {
1334                                 return false;
1335                         }
1336                         if (pwHistLen == 0) {
1337                                 /* Remove any password history from the LDAP store. */
1338                                 memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1339                                 pwstr[64] = '\0';
1340                         } else {
1341                                 int i;
1342                                 uint32 currHistLen = 0;
1343                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1344                                 if (pwhist != NULL) {
1345                                         /* We can only store (1024-1/64 password history entries. */
1346                                         pwHistLen = MIN(pwHistLen, ((1024-1)/64));
1347                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1348                                                 /* Store the salt. */
1349                                                 pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1350                                                 /* Followed by the md5 hash of salt + md4 hash */
1351                                                 pdb_sethexpwd(&pwstr[(i*64)+32],
1352                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1353                                                 DEBUG(100, ("pwstr=%s\n", pwstr));
1354                                         }
1355                                 }
1356                         }
1357                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1358                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1359                                          pwstr);
1360                         SAFE_FREE(pwstr);
1361                 }
1362
1363                 if (need_update(sampass, PDB_PASSLASTSET)) {
1364                         if (asprintf(&temp, "%li",
1365                                 (long int)pdb_get_pass_last_set_time(sampass)) < 0) {
1366                                 return false;
1367                         }
1368                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1369                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1370                                 temp);
1371                         SAFE_FREE(temp);
1372                 }
1373         }
1374
1375         if (need_update(sampass, PDB_HOURS)) {
1376                 const uint8 *hours = pdb_get_hours(sampass);
1377                 if (hours) {
1378                         char hourstr[44];
1379                         pdb_sethexhours(hourstr, hours);
1380                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1381                                 existing,
1382                                 mods,
1383                                 get_userattr_key2string(ldap_state->schema_ver,
1384                                                 LDAP_ATTR_LOGON_HOURS),
1385                                 hourstr);
1386                 }
1387         }
1388
1389         if (need_update(sampass, PDB_ACCTCTRL))
1390                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1391                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1392                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1393
1394         /* password lockout cache:
1395            - If we are now autolocking or clearing, we write to ldap
1396            - If we are clearing, we delete the cache entry
1397            - If the count is > 0, we update the cache
1398
1399            This even means when autolocking, we cache, just in case the
1400            update doesn't work, and we have to cache the autolock flag */
1401
1402         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1403             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1404                 uint16 badcount = pdb_get_bad_password_count(sampass);
1405                 time_t badtime = pdb_get_bad_password_time(sampass);
1406                 uint32 pol;
1407                 pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &pol);
1408
1409                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1410                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1411
1412                 if ((badcount >= pol) || (badcount == 0)) {
1413                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1414                                 (unsigned int)badcount, (unsigned int)badtime));
1415                         if (asprintf(&temp, "%li", (long)badcount) < 0) {
1416                                 return false;
1417                         }
1418                         smbldap_make_mod(
1419                                 ldap_state->smbldap_state->ldap_struct,
1420                                 existing, mods,
1421                                 get_userattr_key2string(
1422                                         ldap_state->schema_ver,
1423                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1424                                 temp);
1425                         SAFE_FREE(temp);
1426
1427                         if (asprintf(&temp, "%li", (long int)badtime) < 0) {
1428                                 return false;
1429                         }
1430                         smbldap_make_mod(
1431                                 ldap_state->smbldap_state->ldap_struct,
1432                                 existing, mods,
1433                                 get_userattr_key2string(
1434                                         ldap_state->schema_ver,
1435                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1436                                 temp);
1437                         SAFE_FREE(temp);
1438                 }
1439                 if (badcount == 0) {
1440                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1441                         login_cache_delentry(sampass);
1442                 } else {
1443                         LOGIN_CACHE cache_entry;
1444
1445                         cache_entry.entry_timestamp = time(NULL);
1446                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1447                         cache_entry.bad_password_count = badcount;
1448                         cache_entry.bad_password_time = badtime;
1449
1450                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1451                         login_cache_write(sampass, cache_entry);
1452                 }
1453         }
1454
1455         return True;
1456 }
1457
1458 /**********************************************************************
1459  End enumeration of the LDAP password list.
1460 *********************************************************************/
1461
1462 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1463 {
1464         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1465         if (ldap_state->result) {
1466                 ldap_msgfree(ldap_state->result);
1467                 ldap_state->result = NULL;
1468         }
1469 }
1470
1471 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1472                         const char *new_attr)
1473 {
1474         int i;
1475
1476         if (new_attr == NULL) {
1477                 return;
1478         }
1479
1480         for (i=0; (*attr_list)[i] != NULL; i++) {
1481                 ;
1482         }
1483
1484         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1485                                             const char *,  i+2);
1486         SMB_ASSERT((*attr_list) != NULL);
1487         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1488         (*attr_list)[i+1] = NULL;
1489 }
1490
1491 /**********************************************************************
1492 Get struct samu entry from LDAP by username.
1493 *********************************************************************/
1494
1495 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1496 {
1497         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1498         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1499         LDAPMessage *result = NULL;
1500         LDAPMessage *entry = NULL;
1501         int count;
1502         const char ** attr_list;
1503         int rc;
1504
1505         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1506         append_attr(user, &attr_list,
1507                     get_userattr_key2string(ldap_state->schema_ver,
1508                                             LDAP_ATTR_MOD_TIMESTAMP));
1509         append_attr(user, &attr_list, "uidNumber");
1510         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1511                                            attr_list);
1512         TALLOC_FREE( attr_list );
1513
1514         if ( rc != LDAP_SUCCESS )
1515                 return NT_STATUS_NO_SUCH_USER;
1516
1517         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1518
1519         if (count < 1) {
1520                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1521                 ldap_msgfree(result);
1522                 return NT_STATUS_NO_SUCH_USER;
1523         } else if (count > 1) {
1524                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1525                 ldap_msgfree(result);
1526                 return NT_STATUS_NO_SUCH_USER;
1527         }
1528
1529         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1530         if (entry) {
1531                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1532                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1533                         ldap_msgfree(result);
1534                         return NT_STATUS_NO_SUCH_USER;
1535                 }
1536                 pdb_set_backend_private_data(user, result, NULL,
1537                                              my_methods, PDB_CHANGED);
1538                 talloc_autofree_ldapmsg(user, result);
1539                 ret = NT_STATUS_OK;
1540         } else {
1541                 ldap_msgfree(result);
1542         }
1543         return ret;
1544 }
1545
1546 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1547                                    const DOM_SID *sid, LDAPMessage **result)
1548 {
1549         int rc = -1;
1550         const char ** attr_list;
1551         uint32 rid;
1552
1553         switch ( ldap_state->schema_ver ) {
1554                 case SCHEMAVER_SAMBASAMACCOUNT: {
1555                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1556                         if (tmp_ctx == NULL) {
1557                                 return LDAP_NO_MEMORY;
1558                         }
1559
1560                         attr_list = get_userattr_list(tmp_ctx,
1561                                                       ldap_state->schema_ver);
1562                         append_attr(tmp_ctx, &attr_list,
1563                                     get_userattr_key2string(
1564                                             ldap_state->schema_ver,
1565                                             LDAP_ATTR_MOD_TIMESTAMP));
1566                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1567                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1568                                                           result, attr_list);
1569                         TALLOC_FREE(tmp_ctx);
1570
1571                         if ( rc != LDAP_SUCCESS )
1572                                 return rc;
1573                         break;
1574                 }
1575
1576                 case SCHEMAVER_SAMBAACCOUNT:
1577                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1578                                 return rc;
1579                         }
1580
1581                         attr_list = get_userattr_list(NULL,
1582                                                       ldap_state->schema_ver);
1583                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1584                         TALLOC_FREE( attr_list );
1585
1586                         if ( rc != LDAP_SUCCESS )
1587                                 return rc;
1588                         break;
1589         }
1590         return rc;
1591 }
1592
1593 /**********************************************************************
1594  Get struct samu entry from LDAP by SID.
1595 *********************************************************************/
1596
1597 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1598 {
1599         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1600         LDAPMessage *result = NULL;
1601         LDAPMessage *entry = NULL;
1602         int count;
1603         int rc;
1604
1605         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1606                                           sid, &result);
1607         if (rc != LDAP_SUCCESS)
1608                 return NT_STATUS_NO_SUCH_USER;
1609
1610         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1611
1612         if (count < 1) {
1613                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
1614                           "count=%d\n", sid_string_dbg(sid), count));
1615                 ldap_msgfree(result);
1616                 return NT_STATUS_NO_SUCH_USER;
1617         }  else if (count > 1) {
1618                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
1619                           "[%s]. Failing. count=%d\n", sid_string_dbg(sid),
1620                           count));
1621                 ldap_msgfree(result);
1622                 return NT_STATUS_NO_SUCH_USER;
1623         }
1624
1625         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1626         if (!entry) {
1627                 ldap_msgfree(result);
1628                 return NT_STATUS_NO_SUCH_USER;
1629         }
1630
1631         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1632                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1633                 ldap_msgfree(result);
1634                 return NT_STATUS_NO_SUCH_USER;
1635         }
1636
1637         pdb_set_backend_private_data(user, result, NULL,
1638                                      my_methods, PDB_CHANGED);
1639         talloc_autofree_ldapmsg(user, result);
1640         return NT_STATUS_OK;
1641 }
1642
1643 /********************************************************************
1644  Do the actual modification - also change a plaintext passord if
1645  it it set.
1646 **********************************************************************/
1647
1648 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1649                                      struct samu *newpwd, char *dn,
1650                                      LDAPMod **mods, int ldap_op,
1651                                      bool (*need_update)(const struct samu *, enum pdb_elements))
1652 {
1653         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1654         int rc;
1655
1656         if (!newpwd || !dn) {
1657                 return NT_STATUS_INVALID_PARAMETER;
1658         }
1659
1660         if (!mods) {
1661                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1662                 /* may be password change below however */
1663         } else {
1664                 switch(ldap_op) {
1665                         case LDAP_MOD_ADD:
1666                                 if (ldap_state->is_nds_ldap) {
1667                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1668                                                         "objectclass",
1669                                                         "inetOrgPerson");
1670                                 } else {
1671                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1672                                                         "objectclass",
1673                                                         LDAP_OBJ_ACCOUNT);
1674                                 }
1675                                 rc = smbldap_add(ldap_state->smbldap_state,
1676                                                  dn, mods);
1677                                 break;
1678                         case LDAP_MOD_REPLACE:
1679                                 rc = smbldap_modify(ldap_state->smbldap_state,
1680                                                     dn ,mods);
1681                                 break;
1682                         default:
1683                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1684                                          ldap_op));
1685                                 return NT_STATUS_INVALID_PARAMETER;
1686                 }
1687
1688                 if (rc!=LDAP_SUCCESS) {
1689                         return NT_STATUS_UNSUCCESSFUL;
1690                 }
1691         }
1692
1693         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1694                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1695                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1696                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1697                 BerElement *ber;
1698                 struct berval *bv;
1699                 char *retoid = NULL;
1700                 struct berval *retdata = NULL;
1701                 char *utf8_password;
1702                 char *utf8_dn;
1703                 size_t converted_size;
1704                 int ret;
1705
1706                 if (!ldap_state->is_nds_ldap) {
1707
1708                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1709                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1710                                 DEBUG(2, ("ldap password change requested, but LDAP "
1711                                           "server does not support it -- ignoring\n"));
1712                                 return NT_STATUS_OK;
1713                         }
1714                 }
1715
1716                 if (!push_utf8_talloc(talloc_tos(), &utf8_password,
1717                                         pdb_get_plaintext_passwd(newpwd),
1718                                         &converted_size))
1719                 {
1720                         return NT_STATUS_NO_MEMORY;
1721                 }
1722
1723                 if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
1724                         TALLOC_FREE(utf8_password);
1725                         return NT_STATUS_NO_MEMORY;
1726                 }
1727
1728                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1729                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1730                         TALLOC_FREE(utf8_password);
1731                         TALLOC_FREE(utf8_dn);
1732                         return NT_STATUS_UNSUCCESSFUL;
1733                 }
1734
1735                 if ((ber_printf (ber, "{") < 0) ||
1736                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID,
1737                                  utf8_dn) < 0)) {
1738                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1739                                  "value <0\n"));
1740                         ber_free(ber,1);
1741                         TALLOC_FREE(utf8_dn);
1742                         TALLOC_FREE(utf8_password);
1743                         return NT_STATUS_UNSUCCESSFUL;
1744                 }
1745
1746                 if ((utf8_password != NULL) && (*utf8_password != '\0')) {
1747                         ret = ber_printf(ber, "ts}",
1748                                          LDAP_TAG_EXOP_MODIFY_PASSWD_NEW,
1749                                          utf8_password);
1750                 } else {
1751                         ret = ber_printf(ber, "}");
1752                 }
1753
1754                 if (ret < 0) {
1755                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1756                                  "value <0\n"));
1757                         ber_free(ber,1);
1758                         TALLOC_FREE(utf8_dn);
1759                         TALLOC_FREE(utf8_password);
1760                         return NT_STATUS_UNSUCCESSFUL;
1761                 }
1762
1763                 if ((rc = ber_flatten (ber, &bv))<0) {
1764                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1765                         ber_free(ber,1);
1766                         TALLOC_FREE(utf8_dn);
1767                         TALLOC_FREE(utf8_password);
1768                         return NT_STATUS_UNSUCCESSFUL;
1769                 }
1770
1771                 TALLOC_FREE(utf8_dn);
1772                 TALLOC_FREE(utf8_password);
1773                 ber_free(ber, 1);
1774
1775                 if (!ldap_state->is_nds_ldap) {
1776                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1777                                                         LDAP_EXOP_MODIFY_PASSWD,
1778                                                         bv, NULL, NULL, &retoid,
1779                                                         &retdata);
1780                 } else {
1781                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1782                                                         pdb_get_plaintext_passwd(newpwd));
1783                 }
1784                 if (rc != LDAP_SUCCESS) {
1785                         char *ld_error = NULL;
1786
1787                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1788                                 DEBUG(3, ("Could not set userPassword "
1789                                           "attribute due to an objectClass "
1790                                           "violation -- ignoring\n"));
1791                                 ber_bvfree(bv);
1792                                 return NT_STATUS_OK;
1793                         }
1794
1795                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1796                                         &ld_error);
1797                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1798                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1799                         SAFE_FREE(ld_error);
1800                         ber_bvfree(bv);
1801 #if defined(LDAP_CONSTRAINT_VIOLATION)
1802                         if (rc == LDAP_CONSTRAINT_VIOLATION)
1803                                 return NT_STATUS_PASSWORD_RESTRICTION;
1804 #endif
1805                         return NT_STATUS_UNSUCCESSFUL;
1806                 } else {
1807                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1808 #ifdef DEBUG_PASSWORD
1809                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1810 #endif
1811                         if (retdata)
1812                                 ber_bvfree(retdata);
1813                         if (retoid)
1814                                 ldap_memfree(retoid);
1815                 }
1816                 ber_bvfree(bv);
1817         }
1818         return NT_STATUS_OK;
1819 }
1820
1821 /**********************************************************************
1822  Delete entry from LDAP for username.
1823 *********************************************************************/
1824
1825 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1826                                            struct samu * sam_acct)
1827 {
1828         struct ldapsam_privates *priv =
1829                 (struct ldapsam_privates *)my_methods->private_data;
1830         const char *sname;
1831         int rc;
1832         LDAPMessage *msg, *entry;
1833         NTSTATUS result = NT_STATUS_NO_MEMORY;
1834         const char **attr_list;
1835         TALLOC_CTX *mem_ctx;
1836
1837         if (!sam_acct) {
1838                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1839                 return NT_STATUS_INVALID_PARAMETER;
1840         }
1841
1842         sname = pdb_get_username(sam_acct);
1843
1844         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1845                   "LDAP.\n", sname));
1846
1847         mem_ctx = talloc_new(NULL);
1848         if (mem_ctx == NULL) {
1849                 DEBUG(0, ("talloc_new failed\n"));
1850                 goto done;
1851         }
1852
1853         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1854         if (attr_list == NULL) {
1855                 goto done;
1856         }
1857
1858         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1859
1860         if ((rc != LDAP_SUCCESS) ||
1861             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1862             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1863                 DEBUG(5, ("Could not find user %s\n", sname));
1864                 result = NT_STATUS_NO_SUCH_USER;
1865                 goto done;
1866         }
1867
1868         rc = ldapsam_delete_entry(
1869                 priv, mem_ctx, entry,
1870                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1871                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1872                 attr_list);
1873
1874         result = (rc == LDAP_SUCCESS) ?
1875                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1876
1877  done:
1878         TALLOC_FREE(mem_ctx);
1879         return result;
1880 }
1881
1882 /**********************************************************************
1883  Helper function to determine for update_sam_account whether
1884  we need LDAP modification.
1885 *********************************************************************/
1886
1887 static bool element_is_changed(const struct samu *sampass,
1888                                enum pdb_elements element)
1889 {
1890         return IS_SAM_CHANGED(sampass, element);
1891 }
1892
1893 /**********************************************************************
1894  Update struct samu.
1895 *********************************************************************/
1896
1897 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1898 {
1899         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1900         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1901         int rc = 0;
1902         char *dn;
1903         LDAPMessage *result = NULL;
1904         LDAPMessage *entry = NULL;
1905         LDAPMod **mods = NULL;
1906         const char **attr_list;
1907
1908         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1909         if (!result) {
1910                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1911                 if (pdb_get_username(newpwd) == NULL) {
1912                         return NT_STATUS_INVALID_PARAMETER;
1913                 }
1914                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1915                 TALLOC_FREE( attr_list );
1916                 if (rc != LDAP_SUCCESS) {
1917                         return NT_STATUS_UNSUCCESSFUL;
1918                 }
1919                 pdb_set_backend_private_data(newpwd, result, NULL,
1920                                              my_methods, PDB_CHANGED);
1921                 talloc_autofree_ldapmsg(newpwd, result);
1922         }
1923
1924         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1925                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1926                 return NT_STATUS_UNSUCCESSFUL;
1927         }
1928
1929         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1930         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
1931         if (!dn) {
1932                 return NT_STATUS_UNSUCCESSFUL;
1933         }
1934
1935         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1936
1937         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
1938                                 element_is_changed)) {
1939                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
1940                 TALLOC_FREE(dn);
1941                 if (mods != NULL)
1942                         ldap_mods_free(mods,True);
1943                 return NT_STATUS_UNSUCCESSFUL;
1944         }
1945
1946         if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
1947             && (mods == NULL)) {
1948                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
1949                          pdb_get_username(newpwd)));
1950                 TALLOC_FREE(dn);
1951                 return NT_STATUS_OK;
1952         }
1953
1954         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
1955
1956         if (mods != NULL) {
1957                 ldap_mods_free(mods,True);
1958         }
1959
1960         TALLOC_FREE(dn);
1961
1962         /*
1963          * We need to set the backend private data to NULL here. For example
1964          * setuserinfo level 25 does a pdb_update_sam_account twice on the
1965          * same one, and with the explicit delete / add logic for attribute
1966          * values the second time we would use the wrong "old" value which
1967          * does not exist in LDAP anymore. Thus the LDAP server would refuse
1968          * the update.
1969          * The existing LDAPMessage is still being auto-freed by the
1970          * destructor.
1971          */
1972         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
1973                                      PDB_CHANGED);
1974
1975         if (!NT_STATUS_IS_OK(ret)) {
1976                 return ret;
1977         }
1978
1979         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1980                   pdb_get_username(newpwd)));
1981         return NT_STATUS_OK;
1982 }
1983
1984 /***************************************************************************
1985  Renames a struct samu
1986  - The "rename user script" has full responsibility for changing everything
1987 ***************************************************************************/
1988
1989 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
1990                                            struct samu *old_acct,
1991                                            const char *newname)
1992 {
1993         const char *oldname;
1994         int rc;
1995         char *rename_script = NULL;
1996         fstring oldname_lower, newname_lower;
1997
1998         if (!old_acct) {
1999                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
2000                 return NT_STATUS_INVALID_PARAMETER;
2001         }
2002         if (!newname) {
2003                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
2004                 return NT_STATUS_INVALID_PARAMETER;
2005         }
2006
2007         oldname = pdb_get_username(old_acct);
2008
2009         /* rename the posix user */
2010         rename_script = SMB_STRDUP(lp_renameuser_script());
2011         if (rename_script == NULL) {
2012                 return NT_STATUS_NO_MEMORY;
2013         }
2014
2015         if (!(*rename_script)) {
2016                 SAFE_FREE(rename_script);
2017                 return NT_STATUS_ACCESS_DENIED;
2018         }
2019
2020         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
2021                    oldname, newname));
2022
2023         /* We have to allow the account name to end with a '$'.
2024            Also, follow the semantics in _samr_create_user() and lower case the
2025            posix name but preserve the case in passdb */
2026
2027         fstrcpy( oldname_lower, oldname );
2028         strlower_m( oldname_lower );
2029         fstrcpy( newname_lower, newname );
2030         strlower_m( newname_lower );
2031         rename_script = realloc_string_sub2(rename_script,
2032                                         "%unew",
2033                                         newname_lower,
2034                                         true,
2035                                         true);
2036         if (!rename_script) {
2037                 return NT_STATUS_NO_MEMORY;
2038         }
2039         rename_script = realloc_string_sub2(rename_script,
2040                                         "%uold",
2041                                         oldname_lower,
2042                                         true,
2043                                         true);
2044         rc = smbrun(rename_script, NULL);
2045
2046         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2047                           rename_script, rc));
2048
2049         SAFE_FREE(rename_script);
2050
2051         if (rc == 0) {
2052                 smb_nscd_flush_user_cache();
2053         }
2054
2055         if (rc)
2056                 return NT_STATUS_UNSUCCESSFUL;
2057
2058         return NT_STATUS_OK;
2059 }
2060
2061 /**********************************************************************
2062  Helper function to determine for update_sam_account whether
2063  we need LDAP modification.
2064  *********************************************************************/
2065
2066 static bool element_is_set_or_changed(const struct samu *sampass,
2067                                       enum pdb_elements element)
2068 {
2069         return (IS_SAM_SET(sampass, element) ||
2070                 IS_SAM_CHANGED(sampass, element));
2071 }
2072
2073 /**********************************************************************
2074  Add struct samu to LDAP.
2075 *********************************************************************/
2076
2077 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2078 {
2079         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2080         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2081         int rc;
2082         LDAPMessage     *result = NULL;
2083         LDAPMessage     *entry  = NULL;
2084         LDAPMod         **mods = NULL;
2085         int             ldap_op = LDAP_MOD_REPLACE;
2086         uint32          num_result;
2087         const char      **attr_list;
2088         char *escape_user = NULL;
2089         const char      *username = pdb_get_username(newpwd);
2090         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
2091         char *filter = NULL;
2092         char *dn = NULL;
2093         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2094         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2095
2096         if (!ctx) {
2097                 return NT_STATUS_NO_MEMORY;
2098         }
2099
2100         if (!username || !*username) {
2101                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2102                 status = NT_STATUS_INVALID_PARAMETER;
2103                 goto fn_exit;
2104         }
2105
2106         /* free this list after the second search or in case we exit on failure */
2107         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2108
2109         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2110
2111         if (rc != LDAP_SUCCESS) {
2112                 goto fn_exit;
2113         }
2114
2115         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2116                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2117                          username));
2118                 goto fn_exit;
2119         }
2120         ldap_msgfree(result);
2121         result = NULL;
2122
2123         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2124                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2125                                                   sid, &result);
2126                 if (rc == LDAP_SUCCESS) {
2127                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2128                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2129                                          "already in the base, with samba "
2130                                          "attributes\n", sid_string_dbg(sid)));
2131                                 goto fn_exit;
2132                         }
2133                         ldap_msgfree(result);
2134                         result = NULL;
2135                 }
2136         }
2137
2138         /* does the entry already exist but without a samba attributes?
2139            we need to return the samba attributes here */
2140
2141         escape_user = escape_ldap_string(talloc_tos(), username);
2142         filter = talloc_strdup(attr_list, "(uid=%u)");
2143         if (!filter) {
2144                 status = NT_STATUS_NO_MEMORY;
2145                 goto fn_exit;
2146         }
2147         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2148         TALLOC_FREE(escape_user);
2149         if (!filter) {
2150                 status = NT_STATUS_NO_MEMORY;
2151                 goto fn_exit;
2152         }
2153
2154         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2155                                    filter, attr_list, &result);
2156         if ( rc != LDAP_SUCCESS ) {
2157                 goto fn_exit;
2158         }
2159
2160         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2161
2162         if (num_result > 1) {
2163                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2164                 goto fn_exit;
2165         }
2166
2167         /* Check if we need to update an existing entry */
2168         if (num_result == 1) {
2169                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2170                 ldap_op = LDAP_MOD_REPLACE;
2171                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2172                 dn = smbldap_talloc_dn(ctx, ldap_state->smbldap_state->ldap_struct, entry);
2173                 if (!dn) {
2174                         status = NT_STATUS_NO_MEMORY;
2175                         goto fn_exit;
2176                 }
2177
2178         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2179
2180                 /* There might be a SID for this account already - say an idmap entry */
2181
2182                 filter = talloc_asprintf(ctx,
2183                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2184                                  get_userattr_key2string(ldap_state->schema_ver,
2185                                          LDAP_ATTR_USER_SID),
2186                                  sid_string_talloc(ctx, sid),
2187                                  LDAP_OBJ_IDMAP_ENTRY,
2188                                  LDAP_OBJ_SID_ENTRY);
2189                 if (!filter) {
2190                         status = NT_STATUS_NO_MEMORY;
2191                         goto fn_exit;
2192                 }
2193
2194                 /* free old result before doing a new search */
2195                 if (result != NULL) {
2196                         ldap_msgfree(result);
2197                         result = NULL;
2198                 }
2199                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2200                                            filter, attr_list, &result);
2201
2202                 if ( rc != LDAP_SUCCESS ) {
2203                         goto fn_exit;
2204                 }
2205
2206                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2207
2208                 if (num_result > 1) {
2209                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2210                         goto fn_exit;
2211                 }
2212
2213                 /* Check if we need to update an existing entry */
2214                 if (num_result == 1) {
2215
2216                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2217                         ldap_op = LDAP_MOD_REPLACE;
2218                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2219                         dn = smbldap_talloc_dn (ctx, ldap_state->smbldap_state->ldap_struct, entry);
2220                         if (!dn) {
2221                                 status = NT_STATUS_NO_MEMORY;
2222                                 goto fn_exit;
2223                         }
2224                 }
2225         }
2226
2227         if (num_result == 0) {
2228                 char *escape_username;
2229                 /* Check if we need to add an entry */
2230                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2231                 ldap_op = LDAP_MOD_ADD;
2232
2233                 escape_username = escape_rdn_val_string_alloc(username);
2234                 if (!escape_username) {
2235                         status = NT_STATUS_NO_MEMORY;
2236                         goto fn_exit;
2237                 }
2238
2239                 if (username[strlen(username)-1] == '$') {
2240                         dn = talloc_asprintf(ctx,
2241                                         "uid=%s,%s",
2242                                         escape_username,
2243                                         lp_ldap_machine_suffix());
2244                 } else {
2245                         dn = talloc_asprintf(ctx,
2246                                         "uid=%s,%s",
2247                                         escape_username,
2248                                         lp_ldap_user_suffix());
2249                 }
2250
2251                 SAFE_FREE(escape_username);
2252                 if (!dn) {
2253                         status = NT_STATUS_NO_MEMORY;
2254                         goto fn_exit;
2255                 }
2256         }
2257
2258         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2259                                 element_is_set_or_changed)) {
2260                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2261                 if (mods != NULL) {
2262                         ldap_mods_free(mods, true);
2263                 }
2264                 goto fn_exit;
2265         }
2266
2267         if (mods == NULL) {
2268                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2269                 goto fn_exit;
2270         }
2271         switch ( ldap_state->schema_ver ) {
2272                 case SCHEMAVER_SAMBAACCOUNT:
2273                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2274                         break;
2275                 case SCHEMAVER_SAMBASAMACCOUNT:
2276                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2277                         break;
2278                 default:
2279                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2280                         break;
2281         }
2282
2283         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2284         if (!NT_STATUS_IS_OK(ret)) {
2285                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2286                          pdb_get_username(newpwd),dn));
2287                 ldap_mods_free(mods, true);
2288                 goto fn_exit;
2289         }
2290
2291         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2292         ldap_mods_free(mods, true);
2293
2294         status = NT_STATUS_OK;
2295
2296   fn_exit:
2297
2298         TALLOC_FREE(ctx);
2299         if (result) {
2300                 ldap_msgfree(result);
2301         }
2302         return status;
2303 }
2304
2305 /**********************************************************************
2306  *********************************************************************/
2307
2308 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2309                                      const char *filter,
2310                                      LDAPMessage ** result)
2311 {
2312         int scope = LDAP_SCOPE_SUBTREE;
2313         int rc;
2314         const char **attr_list;
2315
2316         attr_list = get_attr_list(NULL, groupmap_attr_list);
2317         rc = smbldap_search(ldap_state->smbldap_state,
2318                             lp_ldap_suffix (), scope,
2319                             filter, attr_list, 0, result);
2320         TALLOC_FREE(attr_list);
2321
2322         return rc;
2323 }
2324
2325 /**********************************************************************
2326  *********************************************************************/
2327
2328 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2329                                  GROUP_MAP *map, LDAPMessage *entry)
2330 {
2331         char *temp = NULL;
2332         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2333
2334         if (ldap_state == NULL || map == NULL || entry == NULL ||
2335                         ldap_state->smbldap_state->ldap_struct == NULL) {
2336                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2337                 TALLOC_FREE(ctx);
2338                 return false;
2339         }
2340
2341         temp = smbldap_talloc_single_attribute(
2342                         ldap_state->smbldap_state->ldap_struct,
2343                         entry,
2344                         get_attr_key2string(groupmap_attr_list,
2345                                 LDAP_ATTR_GIDNUMBER),
2346                         ctx);
2347         if (!temp) {
2348                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2349                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2350                 TALLOC_FREE(ctx);
2351                 return false;
2352         }
2353         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2354
2355         map->gid = (gid_t)atol(temp);
2356
2357         TALLOC_FREE(temp);
2358         temp = smbldap_talloc_single_attribute(
2359                         ldap_state->smbldap_state->ldap_struct,
2360                         entry,
2361                         get_attr_key2string(groupmap_attr_list,
2362                                 LDAP_ATTR_GROUP_SID),
2363                         ctx);
2364         if (!temp) {
2365                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2366                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2367                 TALLOC_FREE(ctx);
2368                 return false;
2369         }
2370
2371         if (!string_to_sid(&map->sid, temp)) {
2372                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2373                 TALLOC_FREE(ctx);
2374                 return false;
2375         }
2376
2377         TALLOC_FREE(temp);
2378         temp = smbldap_talloc_single_attribute(
2379                         ldap_state->smbldap_state->ldap_struct,
2380                         entry,
2381                         get_attr_key2string(groupmap_attr_list,
2382                                 LDAP_ATTR_GROUP_TYPE),
2383                         ctx);
2384         if (!temp) {
2385                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2386                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2387                 TALLOC_FREE(ctx);
2388                 return false;
2389         }
2390         map->sid_name_use = (enum lsa_SidType)atol(temp);
2391
2392         if ((map->sid_name_use < SID_NAME_USER) ||
2393                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2394                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2395                 TALLOC_FREE(ctx);
2396                 return false;
2397         }
2398
2399         TALLOC_FREE(temp);
2400         temp = smbldap_talloc_single_attribute(
2401                         ldap_state->smbldap_state->ldap_struct,
2402                         entry,
2403                         get_attr_key2string(groupmap_attr_list,
2404                                 LDAP_ATTR_DISPLAY_NAME),
2405                         ctx);
2406         if (!temp) {
2407                 temp = smbldap_talloc_single_attribute(
2408                                 ldap_state->smbldap_state->ldap_struct,
2409                                 entry,
2410                                 get_attr_key2string(groupmap_attr_list,
2411                                         LDAP_ATTR_CN),
2412                                 ctx);
2413                 if (!temp) {
2414                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2415 for gidNumber(%lu)\n",(unsigned long)map->gid));
2416                         TALLOC_FREE(ctx);
2417                         return false;
2418                 }
2419         }
2420         fstrcpy(map->nt_name, temp);
2421
2422         TALLOC_FREE(temp);
2423         temp = smbldap_talloc_single_attribute(
2424                         ldap_state->smbldap_state->ldap_struct,
2425                         entry,
2426                         get_attr_key2string(groupmap_attr_list,
2427                                 LDAP_ATTR_DESC),
2428                         ctx);
2429         if (!temp) {
2430                 temp = talloc_strdup(ctx, "");
2431                 if (!temp) {
2432                         TALLOC_FREE(ctx);
2433                         return false;
2434                 }
2435         }
2436         fstrcpy(map->comment, temp);
2437
2438         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2439                 store_gid_sid_cache(&map->sid, map->gid);
2440         }
2441
2442         TALLOC_FREE(ctx);
2443         return true;
2444 }
2445
2446 /**********************************************************************
2447  *********************************************************************/
2448
2449 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2450                                  const char *filter,
2451                                  GROUP_MAP *map)
2452 {
2453         struct ldapsam_privates *ldap_state =
2454                 (struct ldapsam_privates *)methods->private_data;
2455         LDAPMessage *result = NULL;
2456         LDAPMessage *entry = NULL;
2457         int count;
2458
2459         if (ldapsam_search_one_group(ldap_state, filter, &result)
2460             != LDAP_SUCCESS) {
2461                 return NT_STATUS_NO_SUCH_GROUP;
2462         }
2463
2464         count = ldap_count_entries(priv2ld(ldap_state), result);
2465
2466         if (count < 1) {
2467                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2468                           "%s\n", filter));
2469                 ldap_msgfree(result);
2470                 return NT_STATUS_NO_SUCH_GROUP;
2471         }
2472
2473         if (count > 1) {
2474                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2475                           "count=%d\n", filter, count));
2476                 ldap_msgfree(result);
2477                 return NT_STATUS_NO_SUCH_GROUP;
2478         }
2479
2480         entry = ldap_first_entry(priv2ld(ldap_state), result);
2481
2482         if (!entry) {
2483                 ldap_msgfree(result);
2484                 return NT_STATUS_UNSUCCESSFUL;
2485         }
2486
2487         if (!init_group_from_ldap(ldap_state, map, entry)) {
2488                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2489                           "group filter %s\n", filter));
2490                 ldap_msgfree(result);
2491                 return NT_STATUS_NO_SUCH_GROUP;
2492         }
2493
2494         ldap_msgfree(result);
2495         return NT_STATUS_OK;
2496 }
2497
2498 /**********************************************************************
2499  *********************************************************************/
2500
2501 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2502                                  DOM_SID sid)
2503 {
2504         char *filter = NULL;
2505         NTSTATUS status;
2506         fstring tmp;
2507
2508         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2509                 LDAP_OBJ_GROUPMAP,
2510                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2511                 sid_to_fstring(tmp, &sid)) < 0) {
2512                 return NT_STATUS_NO_MEMORY;
2513         }
2514
2515         status = ldapsam_getgroup(methods, filter, map);
2516         SAFE_FREE(filter);
2517         return status;
2518 }
2519
2520 /**********************************************************************
2521  *********************************************************************/
2522
2523 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2524                                  gid_t gid)
2525 {
2526         char *filter = NULL;
2527         NTSTATUS status;
2528
2529         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2530                 LDAP_OBJ_GROUPMAP,
2531                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2532                 (unsigned long)gid) < 0) {
2533                 return NT_STATUS_NO_MEMORY;
2534         }
2535
2536         status = ldapsam_getgroup(methods, filter, map);
2537         SAFE_FREE(filter);
2538         return status;
2539 }
2540
2541 /**********************************************************************
2542  *********************************************************************/
2543
2544 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2545                                  const char *name)
2546 {
2547         char *filter = NULL;
2548         char *escape_name = escape_ldap_string(talloc_tos(), name);
2549         NTSTATUS status;
2550
2551         if (!escape_name) {
2552                 return NT_STATUS_NO_MEMORY;
2553         }
2554
2555         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2556                 LDAP_OBJ_GROUPMAP,
2557                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2558                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2559                 escape_name) < 0) {
2560                 TALLOC_FREE(escape_name);
2561                 return NT_STATUS_NO_MEMORY;
2562         }
2563
2564         TALLOC_FREE(escape_name);
2565         status = ldapsam_getgroup(methods, filter, map);
2566         SAFE_FREE(filter);
2567         return status;
2568 }
2569
2570 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2571                                            LDAPMessage *entry,
2572                                            const DOM_SID *domain_sid,
2573                                            uint32 *rid)
2574 {
2575         fstring str;
2576         DOM_SID sid;
2577
2578         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2579                                           str, sizeof(str)-1)) {
2580                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2581                 return False;
2582         }
2583
2584         if (!string_to_sid(&sid, str)) {
2585                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2586                 return False;
2587         }
2588
2589         if (sid_compare_domain(&sid, domain_sid) != 0) {
2590                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2591                            str, sid_string_dbg(domain_sid)));
2592                 return False;
2593         }
2594
2595         if (!sid_peek_rid(&sid, rid)) {
2596                 DEBUG(10, ("Could not peek into RID\n"));
2597                 return False;
2598         }
2599
2600         return True;
2601 }
2602
2603 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2604                                            TALLOC_CTX *mem_ctx,
2605                                            const DOM_SID *group,
2606                                            uint32 **pp_member_rids,
2607                                            size_t *p_num_members)
2608 {
2609         struct ldapsam_privates *ldap_state =
2610                 (struct ldapsam_privates *)methods->private_data;
2611         struct smbldap_state *conn = ldap_state->smbldap_state;
2612         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2613         const char *sid_attrs[] = { "sambaSID", NULL };
2614         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2615         LDAPMessage *result = NULL;
2616         LDAPMessage *entry;
2617         char *filter;
2618         char **values = NULL;
2619         char **memberuid;
2620         char *gidstr;
2621         int rc, count;
2622
2623         *pp_member_rids = NULL;
2624         *p_num_members = 0;
2625
2626         filter = talloc_asprintf(mem_ctx,
2627                                  "(&(objectClass=%s)"
2628                                  "(objectClass=%s)"
2629                                  "(sambaSID=%s))",
2630                                  LDAP_OBJ_POSIXGROUP,
2631                                  LDAP_OBJ_GROUPMAP,
2632                                  sid_string_talloc(mem_ctx, group));
2633         if (filter == NULL) {
2634                 ret = NT_STATUS_NO_MEMORY;
2635                 goto done;
2636         }
2637
2638         rc = smbldap_search(conn, lp_ldap_suffix(),
2639                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2640                             &result);
2641
2642         if (rc != LDAP_SUCCESS)
2643                 goto done;
2644
2645         talloc_autofree_ldapmsg(mem_ctx, result);
2646
2647         count = ldap_count_entries(conn->ldap_struct, result);
2648
2649         if (count > 1) {
2650                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2651                           sid_string_dbg(group)));
2652                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2653                 goto done;
2654         }
2655
2656         if (count == 0) {
2657                 ret = NT_STATUS_NO_SUCH_GROUP;
2658                 goto done;
2659         }
2660
2661         entry = ldap_first_entry(conn->ldap_struct, result);
2662         if (entry == NULL)
2663                 goto done;
2664
2665         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2666         if (!gidstr) {
2667                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2668                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2669                 goto done;
2670         }
2671
2672         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2673
2674         if (values) {
2675
2676                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2677                 if (filter == NULL) {
2678                         ret = NT_STATUS_NO_MEMORY;
2679                         goto done;
2680                 }
2681
2682                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2683                         char *escape_memberuid;
2684
2685                         escape_memberuid = escape_ldap_string(talloc_tos(),
2686                                                               *memberuid);
2687                         if (escape_memberuid == NULL) {
2688                                 ret = NT_STATUS_NO_MEMORY;
2689                                 goto done;
2690                         }
2691
2692                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2693                         TALLOC_FREE(escape_memberuid);
2694                         if (filter == NULL) {
2695                                 ret = NT_STATUS_NO_MEMORY;
2696                                 goto done;
2697                         }
2698                 }
2699
2700                 filter = talloc_asprintf_append_buffer(filter, "))");
2701                 if (filter == NULL) {
2702                         ret = NT_STATUS_NO_MEMORY;
2703                         goto done;
2704                 }
2705
2706                 rc = smbldap_search(conn, lp_ldap_suffix(),
2707                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2708                                     &result);
2709
2710                 if (rc != LDAP_SUCCESS)
2711                         goto done;
2712
2713                 count = ldap_count_entries(conn->ldap_struct, result);
2714                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2715
2716                 talloc_autofree_ldapmsg(mem_ctx, result);
2717
2718                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2719                      entry != NULL;
2720                      entry = ldap_next_entry(conn->ldap_struct, entry))
2721                 {
2722                         char *sidstr;
2723                         DOM_SID sid;
2724                         uint32 rid;
2725
2726                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2727                                                                  entry, "sambaSID",
2728                                                                  mem_ctx);
2729                         if (!sidstr) {
2730                                 DEBUG(0, ("Severe DB error, %s can't miss the sambaSID"
2731                                           "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2732                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2733                                 goto done;
2734                         }
2735
2736                         if (!string_to_sid(&sid, sidstr))
2737                                 goto done;
2738
2739                         if (!sid_check_is_in_our_domain(&sid)) {
2740                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2741                                           "in our domain\n"));
2742                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2743                                 goto done;
2744                         }
2745
2746                         sid_peek_rid(&sid, &rid);
2747
2748                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2749                                                 p_num_members)) {
2750                                 ret = NT_STATUS_NO_MEMORY;
2751                                 goto done;
2752                         }
2753                 }
2754         }
2755
2756         filter = talloc_asprintf(mem_ctx,
2757                                  "(&(objectClass=%s)"
2758                                  "(gidNumber=%s))",
2759                                  LDAP_OBJ_SAMBASAMACCOUNT,
2760                                  gidstr);
2761
2762         rc = smbldap_search(conn, lp_ldap_suffix(),
2763                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2764                             &result);
2765
2766         if (rc != LDAP_SUCCESS)
2767                 goto done;
2768
2769         talloc_autofree_ldapmsg(mem_ctx, result);
2770
2771         for (entry = ldap_first_entry(conn->ldap_struct, result);
2772              entry != NULL;
2773              entry = ldap_next_entry(conn->ldap_struct, entry))
2774         {
2775                 uint32 rid;
2776
2777                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2778                                                     entry,
2779                                                     get_global_sam_sid(),
2780                                                     &rid)) {
2781                         DEBUG(0, ("Severe DB error, %s can't miss the samba SID"                                                                "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2782                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2783                         goto done;
2784                 }
2785
2786                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2787                                         p_num_members)) {
2788                         ret = NT_STATUS_NO_MEMORY;
2789                         goto done;
2790                 }
2791         }
2792
2793         ret = NT_STATUS_OK;
2794
2795  done:
2796
2797         if (values)
2798                 ldap_value_free(values);
2799
2800         return ret;
2801 }
2802
2803 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2804                                                TALLOC_CTX *mem_ctx,
2805                                                struct samu *user,
2806                                                DOM_SID **pp_sids,
2807                                                gid_t **pp_gids,
2808                                                size_t *p_num_groups)
2809 {
2810         struct ldapsam_privates *ldap_state =
2811                 (struct ldapsam_privates *)methods->private_data;
2812         struct smbldap_state *conn = ldap_state->smbldap_state;
2813         char *filter;
2814         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2815         char *escape_name;
2816         int rc, count;
2817         LDAPMessage *result = NULL;
2818         LDAPMessage *entry;
2819         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2820         size_t num_sids, num_gids;
2821         char *gidstr;
2822         gid_t primary_gid = -1;
2823
2824         *pp_sids = NULL;
2825         num_sids = 0;
2826
2827         if (pdb_get_username(user) == NULL) {
2828                 return NT_STATUS_INVALID_PARAMETER;
2829         }
2830
2831         escape_name = escape_ldap_string(talloc_tos(), pdb_get_username(user));
2832         if (escape_name == NULL)
2833                 return NT_STATUS_NO_MEMORY;
2834
2835         /* retrieve the users primary gid */
2836         filter = talloc_asprintf(mem_ctx,
2837                                  "(&(objectClass=%s)(uid=%s))",
2838                                  LDAP_OBJ_SAMBASAMACCOUNT,
2839                                  escape_name);
2840         if (filter == NULL) {
2841                 ret = NT_STATUS_NO_MEMORY;
2842                 goto done;
2843         }
2844
2845         rc = smbldap_search(conn, lp_ldap_suffix(),
2846                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2847
2848         if (rc != LDAP_SUCCESS)
2849                 goto done;
2850
2851         talloc_autofree_ldapmsg(mem_ctx, result);
2852
2853         count = ldap_count_entries(priv2ld(ldap_state), result);
2854
2855         switch (count) {
2856         case 0:
2857                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2858                 ret = NT_STATUS_NO_SUCH_USER;
2859                 goto done;
2860         case 1:
2861                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2862
2863                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2864                 if (!gidstr) {
2865                         DEBUG (1, ("Unable to find the member's gid!\n"));
2866                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2867                         goto done;
2868                 }
2869                 primary_gid = strtoul(gidstr, NULL, 10);
2870                 break;
2871         default:
2872                 DEBUG(1, ("found more than one account with the same user name ?!\n"));
2873                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2874                 goto done;
2875         }
2876
2877         filter = talloc_asprintf(mem_ctx,
2878                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%u)))",
2879                                  LDAP_OBJ_POSIXGROUP, escape_name, (unsigned int)primary_gid);
2880         if (filter == NULL) {
2881                 ret = NT_STATUS_NO_MEMORY;
2882                 goto done;
2883         }
2884
2885         rc = smbldap_search(conn, lp_ldap_suffix(),
2886                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2887
2888         if (rc != LDAP_SUCCESS)
2889                 goto done;
2890
2891         talloc_autofree_ldapmsg(mem_ctx, result);
2892
2893         num_gids = 0;
2894         *pp_gids = NULL;
2895
2896         num_sids = 0;
2897         *pp_sids = NULL;
2898
2899         /* We need to add the primary group as the first gid/sid */
2900
2901         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2902                 ret = NT_STATUS_NO_MEMORY;
2903                 goto done;
2904         }
2905
2906         /* This sid will be replaced later */
2907
2908         ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
2909                                       &num_sids);
2910         if (!NT_STATUS_IS_OK(ret)) {
2911                 goto done;
2912         }
2913
2914         for (entry = ldap_first_entry(conn->ldap_struct, result);
2915              entry != NULL;
2916              entry = ldap_next_entry(conn->ldap_struct, entry))
2917         {
2918                 fstring str;
2919                 DOM_SID sid;
2920                 gid_t gid;
2921                 char *end;
2922
2923                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2924                                                   entry, "sambaSID",
2925                                                   str, sizeof(str)-1))
2926                         continue;
2927
2928                 if (!string_to_sid(&sid, str))
2929                         goto done;
2930
2931                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2932                                                   entry, "gidNumber",
2933                                                   str, sizeof(str)-1))
2934                         continue;
2935
2936                 gid = strtoul(str, &end, 10);
2937
2938                 if (PTR_DIFF(end, str) != strlen(str))
2939                         goto done;
2940
2941                 if (gid == primary_gid) {
2942                         sid_copy(&(*pp_sids)[0], &sid);
2943                 } else {
2944                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2945                                                 &num_gids)) {
2946                                 ret = NT_STATUS_NO_MEMORY;
2947                                 goto done;
2948                         }
2949                         ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2950                                                       &num_sids);
2951                         if (!NT_STATUS_IS_OK(ret)) {
2952                                 goto done;
2953                         }
2954                 }
2955         }
2956
2957         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2958                 DEBUG(3, ("primary group of [%s] not found\n",
2959                           pdb_get_username(user)));
2960                 goto done;
2961         }
2962
2963         *p_num_groups = num_sids;
2964
2965         ret = NT_STATUS_OK;
2966
2967  done:
2968
2969         TALLOC_FREE(escape_name);
2970         return ret;
2971 }
2972
2973 /**********************************************************************
2974  * Augment a posixGroup object with a sambaGroupMapping domgroup
2975  *********************************************************************/
2976
2977 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2978                                        struct ldapsam_privates *ldap_state,
2979                                        GROUP_MAP *map)
2980 {
2981         const char *filter, *dn;
2982         LDAPMessage *msg, *entry;
2983         LDAPMod **mods;
2984         int rc;
2985
2986         filter = talloc_asprintf(mem_ctx,
2987                                  "(&(objectClass=%s)(gidNumber=%u))",
2988                                  LDAP_OBJ_POSIXGROUP, (unsigned int)map->gid);
2989         if (filter == NULL) {
2990                 return NT_STATUS_NO_MEMORY;
2991         }
2992
2993         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2994                                    get_attr_list(mem_ctx, groupmap_attr_list),
2995                                    &msg);
2996         talloc_autofree_ldapmsg(mem_ctx, msg);
2997
2998         if ((rc != LDAP_SUCCESS) ||
2999             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3000             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3001                 return NT_STATUS_NO_SUCH_GROUP;
3002         }
3003
3004         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3005         if (dn == NULL) {
3006                 return NT_STATUS_NO_MEMORY;
3007         }
3008
3009         mods = NULL;
3010         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3011                         LDAP_OBJ_GROUPMAP);
3012         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3013                          sid_string_talloc(mem_ctx, &map->sid));
3014         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3015                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3016         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3017                          map->nt_name);
3018         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3019                          map->comment);
3020         talloc_autofree_ldapmod(mem_ctx, mods);
3021
3022         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3023         if (rc != LDAP_SUCCESS) {
3024                 return NT_STATUS_ACCESS_DENIED;
3025         }
3026
3027         return NT_STATUS_OK;
3028 }
3029
3030 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3031                                                 GROUP_MAP *map)
3032 {
3033         struct ldapsam_privates *ldap_state =
3034                 (struct ldapsam_privates *)methods->private_data;
3035         LDAPMessage *msg = NULL;
3036         LDAPMod **mods = NULL;
3037         const char *attrs[] = { NULL };
3038         char *filter;
3039
3040         char *dn;
3041         TALLOC_CTX *mem_ctx;
3042         NTSTATUS result;
3043
3044         DOM_SID sid;
3045
3046         int rc;
3047
3048         mem_ctx = talloc_new(NULL);
3049         if (mem_ctx == NULL) {
3050                 DEBUG(0, ("talloc_new failed\n"));
3051                 return NT_STATUS_NO_MEMORY;
3052         }
3053
3054         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3055                                  sid_string_talloc(mem_ctx, &map->sid));
3056         if (filter == NULL) {
3057                 result = NT_STATUS_NO_MEMORY;
3058                 goto done;
3059         }
3060
3061         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3062                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3063         talloc_autofree_ldapmsg(mem_ctx, msg);
3064
3065         if ((rc == LDAP_SUCCESS) &&
3066             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3067
3068                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3069                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3070                 result = NT_STATUS_GROUP_EXISTS;
3071                 goto done;
3072         }
3073
3074         switch (map->sid_name_use) {
3075
3076         case SID_NAME_DOM_GRP:
3077                 /* To map a domain group we need to have a posix group
3078                    to attach to. */
3079                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3080                 goto done;
3081                 break;
3082
3083         case SID_NAME_ALIAS:
3084                 if (!sid_check_is_in_our_domain(&map->sid)
3085                         && !sid_check_is_in_builtin(&map->sid) )
3086                 {
3087                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3088                                   sid_string_dbg(&map->sid)));
3089                         result = NT_STATUS_INVALID_PARAMETER;
3090                         goto done;
3091                 }
3092                 break;
3093
3094         default:
3095                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3096                           sid_type_lookup(map->sid_name_use)));
3097                 result = NT_STATUS_INVALID_PARAMETER;
3098                 goto done;
3099         }
3100
3101         /* Domain groups have been mapped in a separate routine, we have to
3102          * create an alias now */
3103
3104         if (map->gid == -1) {
3105                 DEBUG(10, ("Refusing to map gid==-1\n"));
3106                 result = NT_STATUS_INVALID_PARAMETER;
3107                 goto done;
3108         }
3109
3110         if (pdb_gid_to_sid(map->gid, &sid)) {
3111                 DEBUG(3, ("Gid %u is already mapped to SID %s, refusing to "
3112                           "add\n", (unsigned int)map->gid, sid_string_dbg(&sid)));
3113                 result = NT_STATUS_GROUP_EXISTS;
3114                 goto done;
3115         }
3116
3117         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3118          * the best we can get out of LDAP. */
3119
3120         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3121                              sid_string_talloc(mem_ctx, &map->sid),
3122                              lp_ldap_group_suffix());
3123         if (dn == NULL) {
3124                 result = NT_STATUS_NO_MEMORY;
3125                 goto done;
3126         }
3127
3128         mods = NULL;
3129
3130         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3131                          LDAP_OBJ_SID_ENTRY);
3132         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3133                          LDAP_OBJ_GROUPMAP);
3134         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3135                          sid_string_talloc(mem_ctx, &map->sid));
3136         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3137                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3138         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3139                          map->nt_name);
3140         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3141                          map->comment);
3142         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3143                          talloc_asprintf(mem_ctx, "%u", (unsigned int)map->gid));
3144         talloc_autofree_ldapmod(mem_ctx, mods);
3145
3146         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3147
3148         result = (rc == LDAP_SUCCESS) ?
3149                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3150
3151  done:
3152         TALLOC_FREE(mem_ctx);
3153         return result;
3154 }
3155
3156 /**********************************************************************
3157  * Update a group mapping entry. We're quite strict about what can be changed:
3158  * Only the description and displayname may be changed. It simply does not
3159  * make any sense to change the SID, gid or the type in a mapping.
3160  *********************************************************************/
3161
3162 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3163                                                    GROUP_MAP *map)
3164 {
3165         struct ldapsam_privates *ldap_state =
3166                 (struct ldapsam_privates *)methods->private_data;
3167         int rc;
3168         const char *filter, *dn;
3169         LDAPMessage *msg = NULL;
3170         LDAPMessage *entry = NULL;
3171         LDAPMod **mods = NULL;
3172         TALLOC_CTX *mem_ctx;
3173         NTSTATUS result;
3174
3175         mem_ctx = talloc_new(NULL);
3176         if (mem_ctx == NULL) {
3177                 DEBUG(0, ("talloc_new failed\n"));
3178                 return NT_STATUS_NO_MEMORY;
3179         }
3180
3181         /* Make 100% sure that sid, gid and type are not changed by looking up
3182          * exactly the values we're given in LDAP. */
3183
3184         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3185                                  "(sambaSid=%s)(gidNumber=%u)"
3186                                  "(sambaGroupType=%d))",
3187                                  LDAP_OBJ_GROUPMAP,
3188                                  sid_string_talloc(mem_ctx, &map->sid),
3189                                  (unsigned int)map->gid, map->sid_name_use);
3190         if (filter == NULL) {
3191                 result = NT_STATUS_NO_MEMORY;
3192                 goto done;
3193         }
3194
3195         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3196                                    get_attr_list(mem_ctx, groupmap_attr_list),
3197                                    &msg);
3198         talloc_autofree_ldapmsg(mem_ctx, msg);
3199
3200         if ((rc != LDAP_SUCCESS) ||
3201             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3202             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3203                 result = NT_STATUS_NO_SUCH_GROUP;
3204                 goto done;
3205         }
3206
3207         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3208
3209         if (dn == NULL) {
3210                 result = NT_STATUS_NO_MEMORY;
3211                 goto done;
3212         }
3213
3214         mods = NULL;
3215         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3216                          map->nt_name);
3217         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3218                          map->comment);
3219         talloc_autofree_ldapmod(mem_ctx, mods);
3220
3221         if (mods == NULL) {
3222                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3223                           "nothing to do\n"));
3224                 result = NT_STATUS_OK;
3225                 goto done;
3226         }
3227
3228         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3229
3230         if (rc != LDAP_SUCCESS) {
3231                 result = NT_STATUS_ACCESS_DENIED;
3232                 goto done;
3233         }
3234
3235         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3236                   "group %lu in LDAP\n", (unsigned long)map->gid));
3237
3238         result = NT_STATUS_OK;
3239
3240  done:
3241         TALLOC_FREE(mem_ctx);
3242         return result;
3243 }
3244
3245 /**********************************************************************
3246  *********************************************************************/
3247
3248 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3249                                                    DOM_SID sid)
3250 {
3251         struct ldapsam_privates *priv =
3252                 (struct ldapsam_privates *)methods->private_data;
3253         LDAPMessage *msg, *entry;
3254         int rc;
3255         NTSTATUS result;
3256         TALLOC_CTX *mem_ctx;
3257         char *filter;
3258
3259         mem_ctx = talloc_new(NULL);
3260         if (mem_ctx == NULL) {
3261                 DEBUG(0, ("talloc_new failed\n"));
3262                 return NT_STATUS_NO_MEMORY;
3263         }
3264
3265         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3266                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3267                                  sid_string_talloc(mem_ctx, &sid));
3268         if (filter == NULL) {
3269                 result = NT_STATUS_NO_MEMORY;
3270                 goto done;
3271         }
3272         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3273                                    get_attr_list(mem_ctx, groupmap_attr_list),
3274                                    &msg);
3275         talloc_autofree_ldapmsg(mem_ctx, msg);
3276
3277         if ((rc != LDAP_SUCCESS) ||
3278             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3279             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3280                 result = NT_STATUS_NO_SUCH_GROUP;
3281                 goto done;
3282         }
3283
3284         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3285                                   get_attr_list(mem_ctx,
3286                                                 groupmap_attr_list_to_delete));
3287
3288         if ((rc == LDAP_NAMING_VIOLATION) ||
3289             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3290             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3291                 const char *attrs[] = { "sambaGroupType", "description",
3292                                         "displayName", "sambaSIDList",
3293                                         NULL };
3294
3295                 /* Second try. Don't delete the sambaSID attribute, this is
3296                    for "old" entries that are tacked on a winbind
3297                    sambaIdmapEntry. */
3298
3299                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3300                                           LDAP_OBJ_GROUPMAP, attrs);
3301         }
3302
3303         if ((rc == LDAP_NAMING_VIOLATION) ||
3304             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3305             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3306                 const char *attrs[] = { "sambaGroupType", "description",
3307                                         "displayName", "sambaSIDList",
3308                                         "gidNumber", NULL };
3309
3310                 /* Third try. This is a post-3.0.21 alias (containing only
3311                  * sambaSidEntry and sambaGroupMapping classes), we also have
3312                  * to delete the gidNumber attribute, only the sambaSidEntry
3313                  * remains */
3314
3315                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3316                                           LDAP_OBJ_GROUPMAP, attrs);
3317         }
3318
3319         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3320
3321  done:
3322         TALLOC_FREE(mem_ctx);
3323         return result;
3324  }
3325
3326 /**********************************************************************
3327  *********************************************************************/
3328
3329 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3330                                     bool update)
3331 {
3332         struct ldapsam_privates *ldap_state =
3333                 (struct ldapsam_privates *)my_methods->private_data;
3334         char *filter = NULL;
3335         int rc;
3336         const char **attr_list;
3337
3338         filter = talloc_asprintf(NULL, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3339         if (!filter) {
3340                 return NT_STATUS_NO_MEMORY;
3341         }
3342         attr_list = get_attr_list( NULL, groupmap_attr_list );
3343         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3344                             LDAP_SCOPE_SUBTREE, filter,
3345                             attr_list, 0, &ldap_state->result);
3346         TALLOC_FREE(attr_list);
3347
3348         if (rc != LDAP_SUCCESS) {
3349                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3350                           ldap_err2string(rc)));
3351                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3352                           lp_ldap_suffix(), filter));
3353                 ldap_msgfree(ldap_state->result);
3354                 ldap_state->result = NULL;
3355                 TALLOC_FREE(filter);
3356                 return NT_STATUS_UNSUCCESSFUL;
3357         }
3358
3359         TALLOC_FREE(filter);
3360
3361         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3362                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3363                                      ldap_state->result)));
3364
3365         ldap_state->entry =
3366                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3367                                  ldap_state->result);
3368         ldap_state->index = 0;
3369
3370         return NT_STATUS_OK;
3371 }
3372
3373 /**********************************************************************
3374  *********************************************************************/
3375
3376 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3377 {
3378         ldapsam_endsampwent(my_methods);
3379 }
3380
3381 /**********************************************************************
3382  *********************************************************************/
3383
3384 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3385                                     GROUP_MAP *map)
3386 {
3387         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3388         struct ldapsam_privates *ldap_state =
3389                 (struct ldapsam_privates *)my_methods->private_data;
3390         bool bret = False;
3391
3392         while (!bret) {
3393                 if (!ldap_state->entry)
3394                         return ret;
3395
3396                 ldap_state->index++;
3397                 bret = init_group_from_ldap(ldap_state, map,
3398                                             ldap_state->entry);
3399
3400                 ldap_state->entry =
3401                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3402                                         ldap_state->entry);
3403         }
3404
3405         return NT_STATUS_OK;
3406 }
3407
3408 /**********************************************************************
3409  *********************************************************************/
3410
3411 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3412                                            const DOM_SID *domsid, enum lsa_SidType sid_name_use,
3413                                            GROUP_MAP **pp_rmap,
3414                                            size_t *p_num_entries,
3415                                            bool unix_only)
3416 {
3417         GROUP_MAP map;
3418         size_t entries = 0;
3419
3420         *p_num_entries = 0;
3421         *pp_rmap = NULL;
3422
3423         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3424                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3425                           "passdb\n"));
3426                 return NT_STATUS_ACCESS_DENIED;
3427         }
3428
3429         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3430                 if (sid_name_use != SID_NAME_UNKNOWN &&
3431                     sid_name_use != map.sid_name_use) {
3432                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3433                                   "not of the requested type\n", map.nt_name));
3434                         continue;
3435                 }
3436                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3437                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3438                                   "non mapped\n", map.nt_name));
3439                         continue;
3440                 }
3441
3442                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3443                 if (!(*pp_rmap)) {
3444                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3445                                  "enlarge group map!\n"));
3446                         return NT_STATUS_UNSUCCESSFUL;
3447                 }
3448
3449                 (*pp_rmap)[entries] = map;
3450
3451                 entries += 1;
3452
3453         }
3454         ldapsam_endsamgrent(methods);
3455
3456         *p_num_entries = entries;
3457
3458         return NT_STATUS_OK;
3459 }
3460
3461 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3462                                         const DOM_SID *alias,
3463                                         const DOM_SID *member,
3464                                         int modop)
3465 {
3466         struct ldapsam_privates *ldap_state =
3467                 (struct ldapsam_privates *)methods->private_data;
3468         char *dn = NULL;
3469         LDAPMessage *result = NULL;
3470         LDAPMessage *entry = NULL;
3471         int count;
3472         LDAPMod **mods = NULL;
3473         int rc;
3474         enum lsa_SidType type = SID_NAME_USE_NONE;
3475         fstring tmp;
3476
3477         char *filter = NULL;
3478
3479         if (sid_check_is_in_builtin(alias)) {
3480                 type = SID_NAME_ALIAS;
3481         }
3482
3483         if (sid_check_is_in_our_domain(alias)) {
3484                 type = SID_NAME_ALIAS;
3485         }
3486
3487         if (type == SID_NAME_USE_NONE) {
3488                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3489                           sid_string_dbg(alias)));
3490                 return NT_STATUS_NO_SUCH_ALIAS;
3491         }
3492
3493         if (asprintf(&filter,
3494                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3495                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3496                      type) < 0) {
3497                 return NT_STATUS_NO_MEMORY;
3498         }
3499
3500         if (ldapsam_search_one_group(ldap_state, filter,
3501                                      &result) != LDAP_SUCCESS) {
3502                 SAFE_FREE(filter);
3503                 return NT_STATUS_NO_SUCH_ALIAS;
3504         }
3505
3506         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3507                                    result);
3508
3509         if (count < 1) {
3510                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3511                 ldap_msgfree(result);
3512                 SAFE_FREE(filter);
3513                 return NT_STATUS_NO_SUCH_ALIAS;
3514         }
3515
3516         if (count > 1) {
3517                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3518                           "filter %s: count=%d\n", filter, count));
3519                 ldap_msgfree(result);
3520                 SAFE_FREE(filter);
3521                 return NT_STATUS_NO_SUCH_ALIAS;
3522         }
3523
3524         SAFE_FREE(filter);
3525
3526         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3527                                  result);
3528
3529         if (!entry) {
3530                 ldap_msgfree(result);
3531                 return NT_STATUS_UNSUCCESSFUL;
3532         }
3533
3534         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
3535         if (!dn) {
3536                 ldap_msgfree(result);
3537                 return NT_STATUS_UNSUCCESSFUL;
3538         }
3539
3540         smbldap_set_mod(&mods, modop,
3541                         get_attr_key2string(groupmap_attr_list,
3542                                             LDAP_ATTR_SID_LIST),
3543                         sid_to_fstring(tmp, member));
3544
3545         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3546
3547         ldap_mods_free(mods, True);
3548         ldap_msgfree(result);
3549         TALLOC_FREE(dn);
3550
3551         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3552                 return NT_STATUS_MEMBER_IN_ALIAS;
3553         }
3554
3555         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3556                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3557         }
3558
3559         if (rc != LDAP_SUCCESS) {
3560                 return NT_STATUS_UNSUCCESSFUL;
3561         }
3562
3563         return NT_STATUS_OK;
3564 }
3565
3566 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3567                                      const DOM_SID *alias,
3568                                      const DOM_SID *member)
3569 {
3570         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3571 }
3572
3573 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3574                                      const DOM_SID *alias,
3575                                      const DOM_SID *member)
3576 {
3577         return ldapsam_modify_aliasmem(methods, alias, member,
3578                                        LDAP_MOD_DELETE);
3579 }
3580
3581 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3582                                       const DOM_SID *alias,
3583                                       TALLOC_CTX *mem_ctx,
3584                                       DOM_SID **pp_members,
3585                                       size_t *p_num_members)
3586 {
3587         struct ldapsam_privates *ldap_state =
3588                 (struct ldapsam_privates *)methods->private_data;
3589         LDAPMessage *result = NULL;
3590         LDAPMessage *entry = NULL;
3591         int count;
3592         char **values = NULL;
3593         int i;
3594         char *filter = NULL;
3595         size_t num_members = 0;
3596         enum lsa_SidType type = SID_NAME_USE_NONE;
3597         fstring tmp;
3598
3599         *pp_members = NULL;
3600         *p_num_members = 0;
3601
3602         if (sid_check_is_in_builtin(alias)) {
3603                 type = SID_NAME_ALIAS;
3604         }
3605
3606         if (sid_check_is_in_our_domain(alias)) {
3607                 type = SID_NAME_ALIAS;
3608         }
3609
3610         if (type == SID_NAME_USE_NONE) {
3611                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3612                           sid_string_dbg(alias)));
3613                 return NT_STATUS_NO_SUCH_ALIAS;
3614         }
3615
3616         if (asprintf(&filter,
3617                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3618                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3619                      type) < 0) {
3620                 return NT_STATUS_NO_MEMORY;
3621         }
3622
3623         if (ldapsam_search_one_group(ldap_state, filter,
3624                                      &result) != LDAP_SUCCESS) {
3625                 SAFE_FREE(filter);
3626                 return NT_STATUS_NO_SUCH_ALIAS;
3627         }
3628
3629         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3630                                    result);
3631
3632         if (count < 1) {
3633                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3634                 ldap_msgfree(result);
3635                 SAFE_FREE(filter);
3636                 return NT_STATUS_NO_SUCH_ALIAS;
3637         }
3638
3639         if (count > 1) {
3640                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3641                           "filter %s: count=%d\n", filter, count));
3642                 ldap_msgfree(result);
3643                 SAFE_FREE(filter);
3644                 return NT_STATUS_NO_SUCH_ALIAS;
3645         }
3646
3647         SAFE_FREE(filter);
3648
3649         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3650                                  result);
3651
3652         if (!entry) {
3653                 ldap_msgfree(result);
3654                 return NT_STATUS_UNSUCCESSFUL;
3655         }
3656
3657         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3658                                  entry,
3659                                  get_attr_key2string(groupmap_attr_list,
3660                                                      LDAP_ATTR_SID_LIST));
3661
3662         if (values == NULL) {
3663                 ldap_msgfree(result);
3664                 return NT_STATUS_OK;
3665         }
3666
3667         count = ldap_count_values(values);
3668
3669         for (i=0; i<count; i++) {
3670                 DOM_SID member;
3671                 NTSTATUS status;
3672
3673                 if (!string_to_sid(&member, values[i]))
3674                         continue;
3675
3676                 status = add_sid_to_array(mem_ctx, &member, pp_members,
3677                                           &num_members);
3678                 if (!NT_STATUS_IS_OK(status)) {
3679                         ldap_value_free(values);
3680                         ldap_msgfree(result);
3681                         return status;
3682                 }
3683         }
3684
3685         *p_num_members = num_members;
3686         ldap_value_free(values);
3687         ldap_msgfree(result);
3688
3689         return NT_STATUS_OK;
3690 }
3691
3692 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3693                                           TALLOC_CTX *mem_ctx,
3694                                           const DOM_SID *domain_sid,
3695                                           const DOM_SID *members,
3696                                           size_t num_members,
3697                                           uint32 **pp_alias_rids,
3698                                           size_t *p_num_alias_rids)
3699 {
3700         struct ldapsam_privates *ldap_state =
3701                 (struct ldapsam_privates *)methods->private_data;
3702         LDAP *ldap_struct;
3703
3704         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3705
3706         LDAPMessage *result = NULL;
3707         LDAPMessage *entry = NULL;
3708         int i;
3709         int rc;
3710         char *filter;
3711         enum lsa_SidType type = SID_NAME_USE_NONE;
3712
3713         *pp_alias_rids = NULL;
3714         *p_num_alias_rids = 0;
3715
3716         if (sid_check_is_builtin(domain_sid)) {
3717                 type = SID_NAME_ALIAS;
3718         }
3719
3720         if (sid_check_is_domain(domain_sid)) {
3721                 type = SID_NAME_ALIAS;
3722         }
3723
3724         if (type == SID_NAME_USE_NONE) {
3725                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3726                           sid_string_dbg(domain_sid)));
3727                 return NT_STATUS_UNSUCCESSFUL;
3728         }
3729
3730         if (num_members == 0) {
3731                 return NT_STATUS_OK;
3732         }
3733
3734         filter = talloc_asprintf(mem_ctx,
3735                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3736                                  LDAP_OBJ_GROUPMAP, type);
3737
3738         for (i=0; i<num_members; i++)
3739                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3740                                          filter,
3741                                          sid_string_talloc(mem_ctx,
3742                                                            &members[i]));
3743
3744         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3745
3746         if (filter == NULL) {
3747                 return NT_STATUS_NO_MEMORY;
3748         }
3749
3750         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3751                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3752
3753         if (rc != LDAP_SUCCESS)
3754                 return NT_STATUS_UNSUCCESSFUL;
3755
3756         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3757
3758         for (entry = ldap_first_entry(ldap_struct, result);
3759              entry != NULL;
3760              entry = ldap_next_entry(ldap_struct, entry))
3761         {
3762                 fstring sid_str;
3763                 DOM_SID sid;
3764                 uint32 rid;
3765
3766                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3767                                                   LDAP_ATTRIBUTE_SID,
3768                                                   sid_str,
3769                                                   sizeof(sid_str)-1))
3770                         continue;
3771
3772                 if (!string_to_sid(&sid, sid_str))
3773                         continue;
3774
3775                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3776                         continue;
3777
3778                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3779                                         p_num_alias_rids)) {
3780                         ldap_msgfree(result);
3781                         return NT_STATUS_NO_MEMORY;
3782                 }
3783         }
3784
3785         ldap_msgfree(result);
3786         return NT_STATUS_OK;
3787 }
3788
3789 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3790                                                    enum pdb_policy_type type,
3791                                                    uint32 value)
3792 {
3793         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3794         int rc;
3795         LDAPMod **mods = NULL;
3796         fstring value_string;
3797         const char *policy_attr = NULL;
3798
3799         struct ldapsam_privates *ldap_state =
3800                 (struct ldapsam_privates *)methods->private_data;
3801
3802         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3803
3804         if (!ldap_state->domain_dn) {
3805                 return NT_STATUS_INVALID_PARAMETER;
3806         }
3807
3808         policy_attr = get_account_policy_attr(type);
3809         if (policy_attr == NULL) {
3810                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3811                          "policy\n"));
3812                 return ntstatus;
3813         }
3814
3815         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3816
3817         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3818
3819         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3820                             mods);
3821
3822         ldap_mods_free(mods, True);
3823
3824         if (rc != LDAP_SUCCESS) {
3825                 return ntstatus;
3826         }
3827
3828         if (!cache_account_policy_set(type, value)) {
3829                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3830                          "update local tdb cache\n"));
3831                 return ntstatus;
3832         }
3833
3834         return NT_STATUS_OK;
3835 }
3836
3837 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3838                                            enum pdb_policy_type type,
3839                                            uint32_t value)
3840 {
3841         return ldapsam_set_account_policy_in_ldap(methods, type,
3842                                                   value);
3843 }
3844
3845 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3846                                                      enum pdb_policy_type type,
3847                                                      uint32 *value)
3848 {
3849         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3850         LDAPMessage *result = NULL;
3851         LDAPMessage *entry = NULL;
3852         int count;
3853         int rc;
3854         char **vals = NULL;
3855         const char *policy_attr = NULL;
3856
3857         struct ldapsam_privates *ldap_state =
3858                 (struct ldapsam_privates *)methods->private_data;
3859
3860         const char *attrs[2];
3861
3862         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3863
3864         if (!ldap_state->domain_dn) {
3865                 return NT_STATUS_INVALID_PARAMETER;
3866         }
3867
3868         policy_attr = get_account_policy_attr(type);
3869         if (!policy_attr) {
3870                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3871                          "policy index: %d\n", type));
3872                 return ntstatus;
3873         }
3874
3875         attrs[0] = policy_attr;
3876         attrs[1] = NULL;
3877
3878         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3879                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3880                             &result);
3881
3882         if (rc != LDAP_SUCCESS) {
3883                 return ntstatus;
3884         }
3885
3886         count = ldap_count_entries(priv2ld(ldap_state), result);
3887         if (count < 1) {
3888                 goto out;
3889         }
3890
3891         entry = ldap_first_entry(priv2ld(ldap_state), result);
3892         if (entry == NULL) {
3893                 goto out;
3894         }
3895
3896         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3897         if (vals == NULL) {
3898                 goto out;
3899         }
3900
3901         *value = (uint32)atol(vals[0]);
3902
3903         ntstatus = NT_STATUS_OK;
3904
3905 out:
3906         if (vals)
3907                 ldap_value_free(vals);
3908         ldap_msgfree(result);
3909
3910         return ntstatus;
3911 }
3912
3913 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3914
3915    - if user hasn't decided to use account policies inside LDAP just reuse the
3916      old tdb values
3917
3918    - if there is a valid cache entry, return that
3919    - if there is an LDAP entry, update cache and return
3920    - otherwise set to default, update cache and return
3921
3922    Guenther
3923 */
3924 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3925                                            enum pdb_policy_type type,
3926                                            uint32_t *value)
3927 {
3928         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3929
3930         if (cache_account_policy_get(type, value)) {
3931                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3932                           "cache\n"));
3933                 return NT_STATUS_OK;
3934         }
3935
3936         ntstatus = ldapsam_get_account_policy_from_ldap(methods, type,
3937                                                         value);
3938         if (NT_STATUS_IS_OK(ntstatus)) {
3939                 goto update_cache;
3940         }
3941
3942         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
3943                   "ldap\n"));
3944
3945 #if 0
3946         /* should we automagically migrate old tdb value here ? */
3947         if (account_policy_get(type, value))
3948                 goto update_ldap;
3949
3950         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
3951                   "default\n", type));
3952 #endif
3953
3954         if (!account_policy_get_default(type, value)) {
3955                 return ntstatus;
3956         }
3957
3958 /* update_ldap: */
3959
3960         ntstatus = ldapsam_set_account_policy(methods, type, *value);
3961         if (!NT_STATUS_IS_OK(ntstatus)) {
3962                 return ntstatus;
3963         }
3964
3965  update_cache:
3966
3967         if (!cache_account_policy_set(type, *value)) {
3968                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
3969                          "tdb as a cache\n"));
3970                 return NT_STATUS_UNSUCCESSFUL;
3971         }
3972
3973         return NT_STATUS_OK;
3974 }
3975
3976 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
3977                                     const DOM_SID *domain_sid,
3978                                     int num_rids,
3979                                     uint32 *rids,
3980                                     const char **names,
3981                                     enum lsa_SidType *attrs)
3982 {
3983         struct ldapsam_privates *ldap_state =
3984                 (struct ldapsam_privates *)methods->private_data;
3985         LDAPMessage *msg = NULL;
3986         LDAPMessage *entry;
3987         char *allsids = NULL;
3988         int i, rc, num_mapped;
3989         NTSTATUS result = NT_STATUS_NO_MEMORY;
3990         TALLOC_CTX *mem_ctx;
3991         LDAP *ld;
3992         bool is_builtin;
3993
3994         mem_ctx = talloc_new(NULL);
3995         if (mem_ctx == NULL) {
3996                 DEBUG(0, ("talloc_new failed\n"));
3997                 goto done;
3998         }
3999
4000         if (!sid_check_is_builtin(domain_sid) &&
4001             !sid_check_is_domain(domain_sid)) {
4002                 result = NT_STATUS_INVALID_PARAMETER;
4003                 goto done;
4004         }
4005
4006         if (num_rids == 0) {
4007                 result = NT_STATUS_NONE_MAPPED;
4008                 goto done;
4009         }
4010
4011         for (i=0; i<num_rids; i++)
4012                 attrs[i] = SID_NAME_UNKNOWN;
4013
4014         allsids = talloc_strdup(mem_ctx, "");
4015         if (allsids == NULL) {
4016                 goto done;
4017         }
4018
4019         for (i=0; i<num_rids; i++) {
4020                 DOM_SID sid;
4021                 sid_compose(&sid, domain_sid, rids[i]);
4022                 allsids = talloc_asprintf_append_buffer(
4023                         allsids, "(sambaSid=%s)",
4024                         sid_string_talloc(mem_ctx, &sid));
4025                 if (allsids == NULL) {
4026                         goto done;
4027                 }
4028         }
4029
4030         /* First look for users */
4031
4032         {
4033                 char *filter;
4034                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
4035
4036                 filter = talloc_asprintf(
4037                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
4038                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
4039
4040                 if (filter == NULL) {
4041                         goto done;
4042                 }
4043
4044                 rc = smbldap_search(ldap_state->smbldap_state,
4045                                     lp_ldap_user_suffix(),
4046                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4047                                     &msg);
4048                 talloc_autofree_ldapmsg(mem_ctx, msg);
4049         }
4050
4051         if (rc != LDAP_SUCCESS)
4052                 goto done;
4053
4054         ld = ldap_state->smbldap_state->ldap_struct;
4055         num_mapped = 0;
4056
4057         for (entry = ldap_first_entry(ld, msg);
4058              entry != NULL;
4059              entry = ldap_next_entry(ld, entry)) {
4060                 uint32 rid;
4061                 int rid_index;
4062                 const char *name;
4063
4064                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4065                                                     &rid)) {
4066                         DEBUG(2, ("Could not find sid from ldap entry\n"));
4067                         continue;
4068                 }
4069
4070                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
4071                                                        names);
4072                 if (name == NULL) {
4073                         DEBUG(2, ("Could not retrieve uid attribute\n"));
4074                         continue;
4075                 }
4076
4077                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4078                         if (rid == rids[rid_index])
4079                                 break;
4080                 }
4081
4082                 if (rid_index == num_rids) {
4083                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4084                         continue;
4085                 }
4086
4087                 attrs[rid_index] = SID_NAME_USER;
4088                 names[rid_index] = name;
4089                 num_mapped += 1;
4090         }
4091
4092         if (num_mapped == num_rids) {
4093                 /* No need to look for groups anymore -- we're done */
4094                 result = NT_STATUS_OK;
4095                 goto done;
4096         }
4097
4098         /* Same game for groups */
4099
4100         {
4101                 char *filter;
4102                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
4103                                              "sambaGroupType", NULL };
4104
4105                 filter = talloc_asprintf(
4106                         mem_ctx, "(&(objectClass=%s)(|%s))",
4107                         LDAP_OBJ_GROUPMAP, allsids);
4108                 if (filter == NULL) {
4109                         goto done;
4110                 }
4111
4112                 rc = smbldap_search(ldap_state->smbldap_state,
4113                                     lp_ldap_suffix(),
4114                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4115                                     &msg);
4116                 talloc_autofree_ldapmsg(mem_ctx, msg);
4117         }
4118
4119         if (rc != LDAP_SUCCESS)
4120                 goto done;
4121
4122         /* ldap_struct might have changed due to a reconnect */
4123
4124         ld = ldap_state->smbldap_state->ldap_struct;
4125
4126         /* For consistency checks, we already checked we're only domain or builtin */
4127
4128         is_builtin = sid_check_is_builtin(domain_sid);
4129
4130         for (entry = ldap_first_entry(ld, msg);
4131              entry != NULL;
4132              entry = ldap_next_entry(ld, entry))
4133         {
4134                 uint32 rid;
4135                 int rid_index;
4136                 const char *attr;
4137                 enum lsa_SidType type;
4138                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
4139
4140                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
4141                                                        mem_ctx);
4142                 if (attr == NULL) {
4143                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
4144                                   dn));
4145                         continue;
4146                 }
4147
4148                 type = (enum lsa_SidType)atol(attr);
4149
4150                 /* Consistency checks */
4151                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
4152                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
4153                                      (type != SID_NAME_DOM_GRP)))) {
4154                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
4155                 }
4156
4157                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4158                                                     &rid)) {
4159                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
4160                         continue;
4161                 }
4162
4163                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
4164
4165                 if (attr == NULL) {
4166                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
4167                                    dn));
4168                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
4169                 }
4170
4171                 if (attr == NULL) {
4172                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
4173                                   dn));
4174                         continue;
4175                 }
4176
4177                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4178                         if (rid == rids[rid_index])
4179                                 break;
4180                 }
4181
4182                 if (rid_index == num_rids) {
4183                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4184                         continue;
4185                 }
4186
4187                 attrs[rid_index] = type;
4188                 names[rid_index] = attr;
4189                 num_mapped += 1;
4190         }
4191
4192         result = NT_STATUS_NONE_MAPPED;
4193
4194         if (num_mapped > 0)
4195                 result = (num_mapped == num_rids) ?
4196                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
4197  done:
4198         TALLOC_FREE(mem_ctx);
4199         return result;
4200 }
4201
4202 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
4203 {
4204         char *filter = NULL;
4205         char *escaped = NULL;
4206         char *result = NULL;
4207
4208         if (asprintf(&filter, "(&%s(objectclass=%s))",
4209                           "(uid=%u)", LDAP_OBJ_SAMBASAMACCOUNT) < 0) {
4210                 goto done;
4211         }
4212
4213         escaped = escape_ldap_string(talloc_tos(), username);
4214         if (escaped == NULL) goto done;
4215
4216         result = talloc_string_sub(mem_ctx, filter, "%u", username);
4217
4218  done:
4219         SAFE_FREE(filter);
4220         TALLOC_FREE(escaped);
4221
4222         return result;
4223 }
4224
4225 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
4226 {
4227         int i, num = 0;
4228         va_list ap;
4229         const char **result;
4230
4231         va_start(ap, mem_ctx);
4232         while (va_arg(ap, const char *) != NULL)
4233                 num += 1;
4234         va_end(ap);
4235
4236         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
4237                 return NULL;
4238         }
4239
4240         va_start(ap, mem_ctx);
4241         for (i=0; i<num; i++) {
4242                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
4243                 if (result[i] == NULL) {
4244                         talloc_free(result);
4245                         va_end(ap);
4246                         return NULL;
4247                 }
4248         }
4249         va_end(ap);
4250
4251         result[num] = NULL;
4252         return result;
4253 }
4254
4255 struct ldap_search_state {
4256         struct smbldap_state *connection;
4257
4258         uint32 acct_flags;
4259         uint16 group_type;
4260
4261         const char *base;
4262         int scope;
4263         const char *filter;
4264         const char **attrs;
4265         int attrsonly;
4266         void *pagedresults_cookie;
4267
4268         LDAPMessage *entries, *current_entry;
4269         bool (*ldap2displayentry)(struct ldap_search_state *state,
4270                                   TALLOC_CTX *mem_ctx,
4271                                   LDAP *ld, LDAPMessage *entry,
4272                                   struct samr_displayentry *result);
4273 };
4274
4275 static bool ldapsam_search_firstpage(struct pdb_search *search)
4276 {
4277         struct ldap_search_state *state =
4278                 (struct ldap_search_state *)search->private_data;
4279         LDAP *ld;
4280         int rc = LDAP_OPERATIONS_ERROR;
4281
4282         state->entries = NULL;
4283
4284         if (state->connection->paged_results) {
4285                 rc = smbldap_search_paged(state->connection, state->base,
4286                                           state->scope, state->filter,
4287                                           state->attrs, state->attrsonly,
4288                                           lp_ldap_page_size(), &state->entries,
4289                                           &state->pagedresults_cookie);
4290         }
4291
4292         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
4293
4294                 if (state->entries != NULL) {
4295                         /* Left over from unsuccessful paged attempt */
4296                         ldap_msgfree(state->entries);
4297                         state->entries = NULL;
4298                 }
4299
4300                 rc = smbldap_search(state->connection, state->base,
4301                                     state->scope, state->filter, state->attrs,
4302                                     state->attrsonly, &state->entries);
4303
4304                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4305                         return False;
4306
4307                 /* Ok, the server was lying. It told us it could do paged
4308                  * searches when it could not. */
4309                 state->connection->paged_results = False;
4310         }
4311
4312         ld = state->connection->ldap_struct;
4313         if ( ld == NULL) {
4314                 DEBUG(5, ("Don't have an LDAP connection right after a "
4315                           "search\n"));
4316                 return False;
4317         }
4318         state->current_entry = ldap_first_entry(ld, state->entries);
4319
4320         if (state->current_entry == NULL) {
4321                 ldap_msgfree(state->entries);
4322                 state->entries = NULL;
4323         }
4324
4325         return True;
4326 }
4327
4328 static bool ldapsam_search_nextpage(struct pdb_search *search)
4329 {
4330         struct ldap_search_state *state =
4331                 (struct ldap_search_state *)search->private_data;
4332         int rc;
4333
4334         if (!state->connection->paged_results) {
4335                 /* There is no next page when there are no paged results */
4336                 return False;
4337         }
4338
4339         rc = smbldap_search_paged(state->connection, state->base,
4340                                   state->scope, state->filter, state->attrs,
4341                                   state->attrsonly, lp_ldap_page_size(),
4342                                   &state->entries,
4343                                   &state->pagedresults_cookie);
4344
4345         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4346                 return False;
4347
4348         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4349
4350         if (state->current_entry == NULL) {
4351                 ldap_msgfree(state->entries);
4352                 state->entries = NULL;
4353         }
4354
4355         return True;
4356 }
4357
4358 static bool ldapsam_search_next_entry(struct pdb_search *search,
4359                                       struct samr_displayentry *entry)
4360 {
4361         struct ldap_search_state *state =
4362                 (struct ldap_search_state *)search->private_data;
4363         bool result;
4364
4365  retry:
4366         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4367                 return False;
4368
4369         if ((state->entries == NULL) &&
4370             !ldapsam_search_nextpage(search))
4371                     return False;
4372
4373         result = state->ldap2displayentry(state, search,
4374                                           state->connection->ldap_struct,
4375                                           state->current_entry, entry);
4376
4377         if (!result) {
4378                 char *dn;
4379                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4380                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4381                 if (dn != NULL) ldap_memfree(dn);
4382         }
4383
4384         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4385
4386         if (state->current_entry == NULL) {
4387                 ldap_msgfree(state->entries);
4388                 state->entries = NULL;
4389         }
4390
4391         if (!result) goto retry;
4392
4393         return True;
4394 }
4395
4396 static void ldapsam_search_end(struct pdb_search *search)
4397 {
4398         struct ldap_search_state *state =
4399                 (struct ldap_search_state *)search->private_data;
4400         int rc;
4401
4402         if (state->pagedresults_cookie == NULL)
4403                 return;
4404
4405         if (state->entries != NULL)
4406                 ldap_msgfree(state->entries);
4407
4408         state->entries = NULL;
4409         state->current_entry = NULL;
4410
4411         if (!state->connection->paged_results)
4412                 return;
4413
4414         /* Tell the LDAP server we're not interested in the rest anymore. */
4415
4416         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4417                                   state->filter, state->attrs,
4418                                   state->attrsonly, 0, &state->entries,
4419                                   &state->pagedresults_cookie);
4420
4421         if (rc != LDAP_SUCCESS)
4422                 DEBUG(5, ("Could not end search properly\n"));
4423
4424         return;
4425 }
4426
4427 static bool ldapuser2displayentry(struct ldap_search_state *state,
4428                                   TALLOC_CTX *mem_ctx,
4429                                   LDAP *ld, LDAPMessage *entry,
4430                                   struct samr_displayentry *result)
4431 {
4432         char **vals;
4433         size_t converted_size;
4434         DOM_SID sid;
4435         uint32 acct_flags;
4436
4437         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4438         if ((vals == NULL) || (vals[0] == NULL)) {
4439                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4440                 return False;
4441         }
4442         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4443         ldap_value_free(vals);
4444
4445         if ((state->acct_flags != 0) &&
4446             ((state->acct_flags & acct_flags) == 0))
4447                 return False;
4448
4449         result->acct_flags = acct_flags;
4450         result->account_name = "";
4451         result->fullname = "";
4452         result->description = "";
4453
4454         vals = ldap_get_values(ld, entry, "uid");
4455         if ((vals == NULL) || (vals[0] == NULL)) {
4456                 DEBUG(5, ("\"uid\" not found\n"));
4457                 return False;
4458         }
4459         if (!pull_utf8_talloc(mem_ctx,
4460                               CONST_DISCARD(char **, &result->account_name),
4461                               vals[0], &converted_size))
4462         {
4463                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4464                          strerror(errno)));
4465         }
4466
4467         ldap_value_free(vals);
4468
4469         vals = ldap_get_values(ld, entry, "displayName");
4470         if ((vals == NULL) || (vals[0] == NULL))
4471                 DEBUG(8, ("\"displayName\" not found\n"));
4472         else if (!pull_utf8_talloc(mem_ctx,
4473                                    CONST_DISCARD(char **, &result->fullname),
4474                                    vals[0], &converted_size))
4475         {
4476                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4477                          strerror(errno)));
4478         }
4479
4480         ldap_value_free(vals);
4481
4482         vals = ldap_get_values(ld, entry, "description");
4483         if ((vals == NULL) || (vals[0] == NULL))
4484                 DEBUG(8, ("\"description\" not found\n"));
4485         else if (!pull_utf8_talloc(mem_ctx,
4486                                    CONST_DISCARD(char **, &result->description),
4487                                    vals[0], &converted_size))
4488         {
4489                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4490                          strerror(errno)));
4491         }
4492
4493         ldap_value_free(vals);
4494
4495         if ((result->account_name == NULL) ||
4496             (result->fullname == NULL) ||
4497             (result->description == NULL)) {
4498                 DEBUG(0, ("talloc failed\n"));
4499                 return False;
4500         }
4501
4502         vals = ldap_get_values(ld, entry, "sambaSid");
4503         if ((vals == NULL) || (vals[0] == NULL)) {
4504                 DEBUG(0, ("\"objectSid\" not found\n"));
4505                 return False;
4506         }
4507
4508         if (!string_to_sid(&sid, vals[0])) {
4509                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4510                 ldap_value_free(vals);
4511                 return False;
4512         }
4513         ldap_value_free(vals);
4514
4515         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4516                 DEBUG(0, ("sid %s does not belong to our domain\n",
4517                           sid_string_dbg(&sid)));
4518                 return False;
4519         }
4520
4521         return True;
4522 }
4523
4524
4525 static bool ldapsam_search_users(struct pdb_methods *methods,
4526                                  struct pdb_search *search,
4527                                  uint32 acct_flags)
4528 {
4529         struct ldapsam_privates *ldap_state =
4530                 (struct ldapsam_privates *)methods->private_data;
4531         struct ldap_search_state *state;
4532
4533         state = talloc(search, struct ldap_search_state);
4534         if (state == NULL) {
4535                 DEBUG(0, ("talloc failed\n"));
4536                 return False;
4537         }
4538
4539         state->connection = ldap_state->smbldap_state;
4540
4541         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4542                 state->base = lp_ldap_user_suffix();
4543         else if ((acct_flags != 0) &&
4544                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4545                 state->base = lp_ldap_machine_suffix();
4546         else
4547                 state->base = lp_ldap_suffix();
4548
4549         state->acct_flags = acct_flags;
4550         state->base = talloc_strdup(search, state->base);
4551         state->scope = LDAP_SCOPE_SUBTREE;
4552         state->filter = get_ldap_filter(search, "*");
4553         state->attrs = talloc_attrs(search, "uid", "sambaSid",
4554                                     "displayName", "description",
4555                                     "sambaAcctFlags", NULL);
4556         state->attrsonly = 0;
4557         state->pagedresults_cookie = NULL;
4558         state->entries = NULL;
4559         state->ldap2displayentry = ldapuser2displayentry;
4560
4561         if ((state->filter == NULL) || (state->attrs == NULL)) {
4562                 DEBUG(0, ("talloc failed\n"));
4563                 return False;
4564         }
4565
4566         search->private_data = state;
4567         search->next_entry = ldapsam_search_next_entry;
4568         search->search_end = ldapsam_search_end;
4569
4570         return ldapsam_search_firstpage(search);
4571 }
4572
4573 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4574                                    TALLOC_CTX *mem_ctx,
4575                                    LDAP *ld, LDAPMessage *entry,
4576                                    struct samr_displayentry *result)
4577 {
4578         char **vals;
4579         size_t converted_size;
4580         DOM_SID sid;
4581         uint16 group_type;
4582
4583         result->account_name = "";
4584         result->fullname = "";
4585         result->description = "";
4586
4587
4588         vals = ldap_get_values(ld, entry, "sambaGroupType");
4589         if ((vals == NULL) || (vals[0] == NULL)) {
4590                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4591                 if (vals != NULL) {
4592                         ldap_value_free(vals);
4593                 }
4594                 return False;
4595         }
4596
4597         group_type = atoi(vals[0]);
4598
4599         if ((state->group_type != 0) &&
4600             ((state->group_type != group_type))) {
4601                 ldap_value_free(vals);
4602                 return False;
4603         }
4604
4605         ldap_value_free(vals);
4606
4607         /* display name is the NT group name */
4608
4609         vals = ldap_get_values(ld, entry, "displayName");
4610         if ((vals == NULL) || (vals[0] == NULL)) {
4611                 DEBUG(8, ("\"displayName\" not found\n"));
4612
4613                 /* fallback to the 'cn' attribute */
4614                 vals = ldap_get_values(ld, entry, "cn");
4615                 if ((vals == NULL) || (vals[0] == NULL)) {
4616                         DEBUG(5, ("\"cn\" not found\n"));
4617                         return False;
4618                 }
4619                 if (!pull_utf8_talloc(mem_ctx,
4620                                       CONST_DISCARD(char **,
4621                                                     &result->account_name),
4622                                       vals[0], &converted_size))
4623                 {
4624                         DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc "
4625                                   "failed: %s", strerror(errno)));
4626                 }
4627         }
4628         else if (!pull_utf8_talloc(mem_ctx,
4629                                    CONST_DISCARD(char **,
4630                                                  &result->account_name),
4631                                    vals[0], &converted_size))
4632         {
4633                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4634                           strerror(errno)));
4635         }
4636
4637         ldap_value_free(vals);
4638
4639         vals = ldap_get_values(ld, entry, "description");
4640         if ((vals == NULL) || (vals[0] == NULL))
4641                 DEBUG(8, ("\"description\" not found\n"));
4642         else if (!pull_utf8_talloc(mem_ctx,
4643                                    CONST_DISCARD(char **, &result->description),
4644                                    vals[0], &converted_size))
4645         {
4646                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4647                           strerror(errno)));
4648         }
4649         ldap_value_free(vals);
4650
4651         if ((result->account_name == NULL) ||
4652             (result->fullname == NULL) ||
4653             (result->description == NULL)) {
4654                 DEBUG(0, ("talloc failed\n"));
4655                 return False;
4656         }
4657
4658         vals = ldap_get_values(ld, entry, "sambaSid");
4659         if ((vals == NULL) || (vals[0] == NULL)) {
4660                 DEBUG(0, ("\"objectSid\" not found\n"));
4661                 if (vals != NULL) {
4662                         ldap_value_free(vals);
4663                 }
4664                 return False;
4665         }
4666
4667         if (!string_to_sid(&sid, vals[0])) {
4668                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4669                 return False;
4670         }
4671
4672         ldap_value_free(vals);
4673
4674         switch (group_type) {
4675                 case SID_NAME_DOM_GRP:
4676                 case SID_NAME_ALIAS:
4677
4678                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4679                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4680                         {
4681                                 DEBUG(0, ("%s is not in our domain\n",
4682                                           sid_string_dbg(&sid)));
4683                                 return False;
4684                         }
4685                         break;
4686
4687                 default:
4688                         DEBUG(0,("unkown group type: %d\n", group_type));
4689                         return False;
4690         }
4691
4692         result->acct_flags = 0;
4693
4694         return True;
4695 }
4696
4697 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4698                                      struct pdb_search *search,
4699                                      const DOM_SID *sid,
4700                                      enum lsa_SidType type)
4701 {
4702         struct ldapsam_privates *ldap_state =
4703                 (struct ldapsam_privates *)methods->private_data;
4704         struct ldap_search_state *state;
4705         fstring tmp;
4706
4707         state = talloc(search, struct ldap_search_state);
4708         if (state == NULL) {
4709                 DEBUG(0, ("talloc failed\n"));
4710                 return False;
4711         }
4712
4713         state->connection = ldap_state->smbldap_state;
4714
4715         state->base = talloc_strdup(search, lp_ldap_suffix());
4716         state->connection = ldap_state->smbldap_state;
4717         state->scope = LDAP_SCOPE_SUBTREE;
4718         state->filter = talloc_asprintf(search, "(&(objectclass=%s)"
4719                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4720                                          LDAP_OBJ_GROUPMAP,
4721                                          type, sid_to_fstring(tmp, sid));
4722         state->attrs = talloc_attrs(search, "cn", "sambaSid",
4723                                     "displayName", "description",
4724                                     "sambaGroupType", NULL);
4725         state->attrsonly = 0;
4726         state->pagedresults_cookie = NULL;
4727         state->entries = NULL;
4728         state->group_type = type;
4729         state->ldap2displayentry = ldapgroup2displayentry;
4730
4731         if ((state->filter == NULL) || (state->attrs == NULL)) {
4732                 DEBUG(0, ("talloc failed\n"));
4733                 return False;
4734         }
4735
4736         search->private_data = state;
4737         search->next_entry = ldapsam_search_next_entry;
4738         search->search_end = ldapsam_search_end;
4739
4740         return ldapsam_search_firstpage(search);
4741 }
4742
4743 static bool ldapsam_search_groups(struct pdb_methods *methods,
4744                                   struct pdb_search *search)
4745 {
4746         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4747 }
4748
4749 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4750                                    struct pdb_search *search,
4751                                    const DOM_SID *sid)
4752 {
4753         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4754 }
4755
4756 static uint32_t ldapsam_capabilities(struct pdb_methods *methods)
4757 {
4758         return PDB_CAP_STORE_RIDS;
4759 }
4760
4761 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4762                                     uint32 *rid)
4763 {
4764         struct smbldap_state *smbldap_state = priv->smbldap_state;
4765
4766         LDAPMessage *result = NULL;
4767         LDAPMessage *entry = NULL;
4768         LDAPMod **mods = NULL;
4769         NTSTATUS status;
4770         char *value;
4771         int rc;
4772         uint32 nextRid = 0;
4773         const char *dn;
4774
4775         TALLOC_CTX *mem_ctx;
4776
4777         mem_ctx = talloc_new(NULL);
4778         if (mem_ctx == NULL) {
4779                 DEBUG(0, ("talloc_new failed\n"));
4780                 return NT_STATUS_NO_MEMORY;
4781         }
4782
4783         status = smbldap_search_domain_info(smbldap_state, &result,
4784                                             get_global_sam_name(), False);
4785         if (!NT_STATUS_IS_OK(status)) {
4786                 DEBUG(3, ("Could not get domain info: %s\n",
4787                           nt_errstr(status)));
4788                 goto done;
4789         }
4790
4791         talloc_autofree_ldapmsg(mem_ctx, result);
4792
4793         entry = ldap_first_entry(priv2ld(priv), result);
4794         if (entry == NULL) {
4795                 DEBUG(0, ("Could not get domain info entry\n"));
4796                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4797                 goto done;
4798         }
4799
4800         /* Find the largest of the three attributes "sambaNextRid",
4801            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4802            concept of differentiating between user and group rids, and will
4803            use only "sambaNextRid" in the future. But for compatibility
4804            reasons I look if others have chosen different strategies -- VL */
4805
4806         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4807                                                 "sambaNextRid", mem_ctx);
4808         if (value != NULL) {
4809                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4810                 nextRid = MAX(nextRid, tmp);
4811         }
4812
4813         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4814                                                 "sambaNextUserRid", mem_ctx);
4815         if (value != NULL) {
4816                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4817                 nextRid = MAX(nextRid, tmp);
4818         }
4819
4820         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4821                                                 "sambaNextGroupRid", mem_ctx);
4822         if (value != NULL) {
4823                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4824                 nextRid = MAX(nextRid, tmp);
4825         }
4826
4827         if (nextRid == 0) {
4828                 nextRid = BASE_RID-1;
4829         }
4830
4831         nextRid += 1;
4832
4833         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4834                          talloc_asprintf(mem_ctx, "%d", nextRid));
4835         talloc_autofree_ldapmod(mem_ctx, mods);
4836
4837         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4838                 status = NT_STATUS_NO_MEMORY;
4839                 goto done;
4840         }
4841
4842         rc = smbldap_modify(smbldap_state, dn, mods);
4843
4844         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4845          * please retry" */
4846
4847         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4848
4849  done:
4850         if (NT_STATUS_IS_OK(status)) {
4851                 *rid = nextRid;
4852         }
4853
4854         TALLOC_FREE(mem_ctx);
4855         return status;
4856 }
4857
4858 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4859 {
4860         int i;
4861
4862         for (i=0; i<10; i++) {
4863                 NTSTATUS result = ldapsam_get_new_rid(
4864                         (struct ldapsam_privates *)methods->private_data, rid);
4865                 if (NT_STATUS_IS_OK(result)) {
4866                         return result;
4867                 }
4868
4869                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4870                         return result;
4871                 }
4872
4873                 /* The ldap update failed (maybe a race condition), retry */
4874         }
4875
4876         /* Tried 10 times, fail. */
4877         return NT_STATUS_ACCESS_DENIED;
4878 }
4879
4880 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4881 {
4882         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4883         return NT_STATUS_IS_OK(result) ? True : False;
4884 }
4885
4886 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
4887                               const DOM_SID *sid,
4888                               union unid_t *id, enum lsa_SidType *type)
4889 {
4890         struct ldapsam_privates *priv =
4891                 (struct ldapsam_privates *)methods->private_data;
4892         char *filter;
4893         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4894                                 NULL };
4895         LDAPMessage *result = NULL;
4896         LDAPMessage *entry = NULL;
4897         bool ret = False;
4898         char *value;
4899         int rc;
4900
4901         TALLOC_CTX *mem_ctx;
4902
4903         mem_ctx = talloc_new(NULL);
4904         if (mem_ctx == NULL) {
4905                 DEBUG(0, ("talloc_new failed\n"));
4906                 return False;
4907         }
4908
4909         filter = talloc_asprintf(mem_ctx,
4910                                  "(&(sambaSid=%s)"
4911                                  "(|(objectClass=%s)(objectClass=%s)))",
4912                                  sid_string_talloc(mem_ctx, sid),
4913                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4914         if (filter == NULL) {
4915                 DEBUG(5, ("talloc_asprintf failed\n"));
4916                 goto done;
4917         }
4918
4919         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4920                                    attrs, &result);
4921         if (rc != LDAP_SUCCESS) {
4922                 goto done;
4923         }
4924         talloc_autofree_ldapmsg(mem_ctx, result);
4925
4926         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4927                 DEBUG(10, ("Got %d entries, expected one\n",
4928                            ldap_count_entries(priv2ld(priv), result)));
4929                 goto done;
4930         }
4931
4932         entry = ldap_first_entry(priv2ld(priv), result);
4933
4934         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4935                                                 "sambaGroupType", mem_ctx);
4936
4937         if (value != NULL) {
4938                 const char *gid_str;
4939                 /* It's a group */
4940
4941                 gid_str = smbldap_talloc_single_attribute(
4942                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4943                 if (gid_str == NULL) {
4944                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4945                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4946                                                     entry)));
4947                         goto done;
4948                 }
4949
4950                 id->gid = strtoul(gid_str, NULL, 10);
4951                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4952                 ret = True;
4953                 goto done;
4954         }
4955
4956         /* It must be a user */
4957
4958         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4959                                                 "uidNumber", mem_ctx);
4960         if (value == NULL) {
4961                 DEBUG(1, ("Could not find uidNumber in %s\n",
4962                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4963                 goto done;
4964         }
4965
4966         id->uid = strtoul(value, NULL, 10);
4967         *type = SID_NAME_USER;
4968
4969         ret = True;
4970  done:
4971         TALLOC_FREE(mem_ctx);
4972         return ret;
4973 }
4974
4975 /*
4976  * The following functions is called only if
4977  * ldapsam:trusted and ldapsam:editposix are
4978  * set to true
4979  */
4980
4981 /*
4982  * ldapsam_create_user creates a new
4983  * posixAccount and sambaSamAccount object
4984  * in the ldap users subtree
4985  *
4986  * The uid is allocated by winbindd.
4987  */
4988
4989 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
4990                                     TALLOC_CTX *tmp_ctx, const char *name,
4991                                     uint32 acb_info, uint32 *rid)
4992 {
4993         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4994         LDAPMessage *entry = NULL;
4995         LDAPMessage *result = NULL;
4996         uint32 num_result;
4997         bool is_machine = False;
4998         bool add_posix = False;
4999         LDAPMod **mods = NULL;
5000         struct samu *user;
5001         char *filter;
5002         char *username;
5003         char *homedir;
5004         char *gidstr;
5005         char *uidstr;
5006         char *shell;
5007         const char *dn = NULL;
5008         DOM_SID group_sid;
5009         DOM_SID user_sid;
5010         gid_t gid = -1;
5011         uid_t uid = -1;
5012         NTSTATUS ret;
5013         int rc;
5014
5015         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
5016               acb_info & ACB_WSTRUST ||
5017               acb_info & ACB_SVRTRUST ||
5018               acb_info & ACB_DOMTRUST) {
5019                 is_machine = True;
5020         }
5021
5022         username = escape_ldap_string(talloc_tos(), name);
5023         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
5024                                  username, LDAP_OBJ_POSIXACCOUNT);
5025         TALLOC_FREE(username);
5026
5027         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5028         if (rc != LDAP_SUCCESS) {
5029                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
5030                 return NT_STATUS_ACCESS_DENIED;
5031         }
5032         talloc_autofree_ldapmsg(tmp_ctx, result);
5033
5034         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5035
5036         if (num_result > 1) {
5037                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
5038                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5039         }
5040
5041         if (num_result == 1) {
5042                 char *tmp;
5043                 /* check if it is just a posix account.
5044                  * or if there is a sid attached to this entry
5045                  */
5046
5047                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5048                 if (!entry) {
5049                         return NT_STATUS_UNSUCCESSFUL;
5050                 }
5051
5052                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5053                 if (tmp) {
5054                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5055                         return NT_STATUS_USER_EXISTS;
5056                 }
5057
5058                 /* it is just a posix account, retrieve the dn for later use */
5059                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5060                 if (!dn) {
5061                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5062                         return NT_STATUS_NO_MEMORY;
5063                 }
5064         }
5065
5066         if (num_result == 0) {
5067                 add_posix = True;
5068         }
5069
5070         /* Create the basic samu structure and generate the mods for the ldap commit */
5071         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5072                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5073                 return ret;
5074         }
5075
5076         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5077
5078         user = samu_new(tmp_ctx);
5079         if (!user) {
5080                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5081                 return NT_STATUS_NO_MEMORY;
5082         }
5083
5084         if (!pdb_set_username(user, name, PDB_SET)) {
5085                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5086                 return NT_STATUS_UNSUCCESSFUL;
5087         }
5088         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5089                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5090                 return NT_STATUS_UNSUCCESSFUL;
5091         }
5092         if (is_machine) {
5093                 if (acb_info & ACB_NORMAL) {
5094                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5095                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5096                                 return NT_STATUS_UNSUCCESSFUL;
5097                         }
5098                 } else {
5099                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5100                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5101                                 return NT_STATUS_UNSUCCESSFUL;
5102                         }
5103                 }
5104         } else {
5105                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5106                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5107                         return NT_STATUS_UNSUCCESSFUL;
5108                 }
5109         }
5110
5111         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5112                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5113                 return NT_STATUS_UNSUCCESSFUL;
5114         }
5115
5116         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
5117                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5118                 return NT_STATUS_UNSUCCESSFUL;
5119         }
5120
5121         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5122                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5123         }
5124         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5125
5126         if (add_posix) {
5127                 char *escape_name;
5128
5129                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5130
5131                 /* retrieve the Domain Users group gid */
5132                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
5133                     !sid_to_gid(&group_sid, &gid)) {
5134                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5135                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5136                 }
5137
5138                 /* lets allocate a new userid for this user */
5139                 if (!winbind_allocate_uid(&uid)) {
5140                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5141                         return NT_STATUS_UNSUCCESSFUL;
5142                 }
5143
5144
5145                 if (is_machine) {
5146                         /* TODO: choose a more appropriate default for machines */
5147                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5148                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5149                 } else {
5150                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5151                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5152                 }
5153                 uidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)uid);
5154                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5155
5156                 escape_name = escape_rdn_val_string_alloc(name);
5157                 if (!escape_name) {
5158                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5159                         return NT_STATUS_NO_MEMORY;
5160                 }
5161
5162                 if (is_machine) {
5163                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5164                 } else {
5165                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5166                 }
5167
5168                 SAFE_FREE(escape_name);
5169
5170                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5171                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5172                         return NT_STATUS_NO_MEMORY;
5173                 }
5174
5175                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5176                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5177                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5178                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5179                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5180                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5181                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5182         }
5183
5184         talloc_autofree_ldapmod(tmp_ctx, mods);
5185
5186         if (add_posix) {
5187                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5188         } else {
5189                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5190         }
5191
5192         if (rc != LDAP_SUCCESS) {
5193                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5194                 return NT_STATUS_UNSUCCESSFUL;
5195         }
5196
5197         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5198
5199         flush_pwnam_cache();
5200
5201         return NT_STATUS_OK;
5202 }
5203
5204 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5205 {
5206         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5207         LDAPMessage *result = NULL;
5208         LDAPMessage *entry = NULL;
5209         int num_result;
5210         const char *dn;
5211         char *filter;
5212         int rc;
5213
5214         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5215
5216         filter = talloc_asprintf(tmp_ctx,
5217                                  "(&(uid=%s)"
5218                                  "(objectClass=%s)"
5219                                  "(objectClass=%s))",
5220                                  pdb_get_username(sam_acct),
5221                                  LDAP_OBJ_POSIXACCOUNT,
5222                                  LDAP_OBJ_SAMBASAMACCOUNT);
5223         if (filter == NULL) {
5224                 return NT_STATUS_NO_MEMORY;
5225         }
5226
5227         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5228         if (rc != LDAP_SUCCESS) {
5229                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5230                 return NT_STATUS_UNSUCCESSFUL;
5231         }
5232         talloc_autofree_ldapmsg(tmp_ctx, result);
5233
5234         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5235
5236         if (num_result == 0) {
5237                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5238                 return NT_STATUS_NO_SUCH_USER;
5239         }
5240
5241         if (num_result > 1) {
5242                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5243                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5244         }
5245
5246         entry = ldap_first_entry(priv2ld(ldap_state), result);
5247         if (!entry) {
5248                 return NT_STATUS_UNSUCCESSFUL;
5249         }
5250
5251         /* it is just a posix account, retrieve the dn for later use */
5252         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5253         if (!dn) {
5254                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5255                 return NT_STATUS_NO_MEMORY;
5256         }
5257
5258         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5259         if (rc != LDAP_SUCCESS) {
5260                 return NT_STATUS_UNSUCCESSFUL;
5261         }
5262
5263         flush_pwnam_cache();
5264
5265         return NT_STATUS_OK;
5266 }
5267
5268 /*
5269  * ldapsam_create_group creates a new
5270  * posixGroup and sambaGroupMapping object
5271  * in the ldap groups subtree
5272  *
5273  * The gid is allocated by winbindd.
5274  */
5275
5276 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5277                                          TALLOC_CTX *tmp_ctx,
5278                                          const char *name,
5279                                          uint32 *rid)
5280 {
5281         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5282         NTSTATUS ret;
5283         LDAPMessage *entry = NULL;
5284         LDAPMessage *result = NULL;
5285         uint32 num_result;
5286         bool is_new_entry = False;
5287         LDAPMod **mods = NULL;
5288         char *filter;
5289         char *groupsidstr;
5290         char *groupname;
5291         char *grouptype;
5292         char *gidstr;
5293         const char *dn = NULL;
5294         DOM_SID group_sid;
5295         gid_t gid = -1;
5296         int rc;
5297
5298         groupname = escape_ldap_string(talloc_tos(), name);
5299         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5300                                  groupname, LDAP_OBJ_POSIXGROUP);
5301         TALLOC_FREE(groupname);
5302
5303         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5304         if (rc != LDAP_SUCCESS) {
5305                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5306                 return NT_STATUS_UNSUCCESSFUL;
5307         }
5308         talloc_autofree_ldapmsg(tmp_ctx, result);
5309
5310         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5311
5312         if (num_result > 1) {
5313                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5314                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5315         }
5316
5317         if (num_result == 1) {
5318                 char *tmp;
5319                 /* check if it is just a posix group.
5320                  * or if there is a sid attached to this entry
5321                  */
5322
5323                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5324                 if (!entry) {
5325                         return NT_STATUS_UNSUCCESSFUL;
5326                 }
5327
5328                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5329                 if (tmp) {
5330                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5331                         return NT_STATUS_GROUP_EXISTS;
5332                 }
5333
5334                 /* it is just a posix group, retrieve the gid and the dn for later use */
5335                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5336                 if (!tmp) {
5337                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5338                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5339                 }
5340
5341                 gid = strtoul(tmp, NULL, 10);
5342
5343                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5344                 if (!dn) {
5345                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5346                         return NT_STATUS_NO_MEMORY;
5347                 }
5348         }
5349
5350         if (num_result == 0) {
5351                 char *escape_name;
5352
5353                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5354
5355                 is_new_entry = True;
5356
5357                 /* lets allocate a new groupid for this group */
5358                 if (!winbind_allocate_gid(&gid)) {
5359                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5360                         return NT_STATUS_UNSUCCESSFUL;
5361                 }
5362
5363                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5364
5365                 escape_name = escape_rdn_val_string_alloc(name);
5366                 if (!escape_name) {
5367                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5368                         return NT_STATUS_NO_MEMORY;
5369                 }
5370
5371                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5372
5373                 SAFE_FREE(escape_name);
5374
5375                 if (!gidstr || !dn) {
5376                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5377                         return NT_STATUS_NO_MEMORY;
5378                 }
5379
5380                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5381                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5382                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5383         }
5384
5385         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5386                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5387                 return ret;
5388         }
5389
5390         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5391
5392         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5393                                                                &group_sid));
5394         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5395
5396         if (!groupsidstr || !grouptype) {
5397                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5398                 return NT_STATUS_NO_MEMORY;
5399         }
5400
5401         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5402         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5403         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5404         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5405         talloc_autofree_ldapmod(tmp_ctx, mods);
5406
5407         if (is_new_entry) {
5408                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5409 #if 0
5410                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5411                         /* This call may fail with rfc2307bis schema */
5412                         /* Retry adding a structural class */
5413                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5414                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5415                 }
5416 #endif
5417         } else {
5418                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5419         }
5420
5421         if (rc != LDAP_SUCCESS) {
5422                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5423                 return NT_STATUS_UNSUCCESSFUL;
5424         }
5425
5426         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5427
5428         return NT_STATUS_OK;
5429 }
5430
5431 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5432 {
5433         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5434         LDAPMessage *result = NULL;
5435         LDAPMessage *entry = NULL;
5436         int num_result;
5437         const char *dn;
5438         char *gidstr;
5439         char *filter;
5440         DOM_SID group_sid;
5441         int rc;
5442
5443         /* get the group sid */
5444         sid_compose(&group_sid, get_global_sam_sid(), rid);
5445
5446         filter = talloc_asprintf(tmp_ctx,
5447                                  "(&(sambaSID=%s)"
5448                                  "(objectClass=%s)"
5449                                  "(objectClass=%s))",
5450                                  sid_string_talloc(tmp_ctx, &group_sid),
5451                                  LDAP_OBJ_POSIXGROUP,
5452                                  LDAP_OBJ_GROUPMAP);
5453         if (filter == NULL) {
5454                 return NT_STATUS_NO_MEMORY;
5455         }
5456
5457         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5458         if (rc != LDAP_SUCCESS) {
5459                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5460                 return NT_STATUS_UNSUCCESSFUL;
5461         }
5462         talloc_autofree_ldapmsg(tmp_ctx, result);
5463
5464         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5465
5466         if (num_result == 0) {
5467                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5468                 return NT_STATUS_NO_SUCH_GROUP;
5469         }
5470
5471         if (num_result > 1) {
5472                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5473                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5474         }
5475
5476         entry = ldap_first_entry(priv2ld(ldap_state), result);
5477         if (!entry) {
5478                 return NT_STATUS_UNSUCCESSFUL;
5479         }
5480
5481         /* here it is, retrieve the dn for later use */
5482         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5483         if (!dn) {
5484                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5485                 return NT_STATUS_NO_MEMORY;
5486         }
5487
5488         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5489         if (!gidstr) {
5490                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5491                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5492         }
5493
5494         /* check no user have this group marked as primary group */
5495         filter = talloc_asprintf(tmp_ctx,
5496                                  "(&(gidNumber=%s)"
5497                                  "(objectClass=%s)"
5498                                  "(objectClass=%s))",
5499                                  gidstr,
5500                                  LDAP_OBJ_POSIXACCOUNT,
5501                                  LDAP_OBJ_SAMBASAMACCOUNT);
5502
5503         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5504         if (rc != LDAP_SUCCESS) {
5505                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5506                 return NT_STATUS_UNSUCCESSFUL;
5507         }
5508         talloc_autofree_ldapmsg(tmp_ctx, result);
5509
5510         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5511
5512         if (num_result != 0) {
5513                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5514                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5515         }
5516
5517         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5518         if (rc != LDAP_SUCCESS) {
5519                 return NT_STATUS_UNSUCCESSFUL;
5520         }
5521
5522         return NT_STATUS_OK;
5523 }
5524
5525 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5526                                         TALLOC_CTX *tmp_ctx,
5527                                         uint32 group_rid,
5528                                         uint32 member_rid,
5529                                         int modop)
5530 {
5531         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5532         LDAPMessage *entry = NULL;
5533         LDAPMessage *result = NULL;
5534         uint32 num_result;
5535         LDAPMod **mods = NULL;
5536         char *filter;
5537         char *uidstr;
5538         const char *dn = NULL;
5539         DOM_SID group_sid;
5540         DOM_SID member_sid;
5541         int rc;
5542
5543         switch (modop) {
5544         case LDAP_MOD_ADD:
5545                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5546                 break;
5547         case LDAP_MOD_DELETE:
5548                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5549                 break;
5550         default:
5551                 return NT_STATUS_UNSUCCESSFUL;
5552         }
5553
5554         /* get member sid  */
5555         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5556
5557         /* get the group sid */
5558         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5559
5560         filter = talloc_asprintf(tmp_ctx,
5561                                  "(&(sambaSID=%s)"
5562                                  "(objectClass=%s)"
5563                                  "(objectClass=%s))",
5564                                  sid_string_talloc(tmp_ctx, &member_sid),
5565                                  LDAP_OBJ_POSIXACCOUNT,
5566                                  LDAP_OBJ_SAMBASAMACCOUNT);
5567         if (filter == NULL) {
5568                 return NT_STATUS_NO_MEMORY;
5569         }
5570
5571         /* get the member uid */
5572         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5573         if (rc != LDAP_SUCCESS) {
5574                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5575                 return NT_STATUS_UNSUCCESSFUL;
5576         }
5577         talloc_autofree_ldapmsg(tmp_ctx, result);
5578
5579         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5580
5581         if (num_result == 0) {
5582                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5583                 return NT_STATUS_NO_SUCH_MEMBER;
5584         }
5585
5586         if (num_result > 1) {
5587                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5588                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5589         }
5590
5591         entry = ldap_first_entry(priv2ld(ldap_state), result);
5592         if (!entry) {
5593                 return NT_STATUS_UNSUCCESSFUL;
5594         }
5595
5596         if (modop == LDAP_MOD_DELETE) {
5597                 /* check if we are trying to remove the member from his primary group */
5598                 char *gidstr;
5599                 gid_t user_gid, group_gid;
5600
5601                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5602                 if (!gidstr) {
5603                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5604                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5605                 }
5606
5607                 user_gid = strtoul(gidstr, NULL, 10);
5608
5609                 if (!sid_to_gid(&group_sid, &group_gid)) {
5610                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5611                         return NT_STATUS_UNSUCCESSFUL;
5612                 }
5613
5614                 if (user_gid == group_gid) {
5615                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5616                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5617                 }
5618         }
5619
5620         /* here it is, retrieve the uid for later use */
5621         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5622         if (!uidstr) {
5623                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5624                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5625         }
5626
5627         filter = talloc_asprintf(tmp_ctx,
5628                                  "(&(sambaSID=%s)"
5629                                  "(objectClass=%s)"
5630                                  "(objectClass=%s))",
5631                                  sid_string_talloc(tmp_ctx, &group_sid),
5632                                  LDAP_OBJ_POSIXGROUP,
5633                                  LDAP_OBJ_GROUPMAP);
5634
5635         /* get the group */
5636         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5637         if (rc != LDAP_SUCCESS) {
5638                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5639                 return NT_STATUS_UNSUCCESSFUL;
5640         }
5641         talloc_autofree_ldapmsg(tmp_ctx, result);
5642
5643         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5644
5645         if (num_result == 0) {
5646                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5647                 return NT_STATUS_NO_SUCH_GROUP;
5648         }
5649
5650         if (num_result > 1) {
5651                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5652                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5653         }
5654
5655         entry = ldap_first_entry(priv2ld(ldap_state), result);
5656         if (!entry) {
5657                 return NT_STATUS_UNSUCCESSFUL;
5658         }
5659
5660         /* here it is, retrieve the dn for later use */
5661         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5662         if (!dn) {
5663                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5664                 return NT_STATUS_NO_MEMORY;
5665         }
5666
5667         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5668
5669         talloc_autofree_ldapmod(tmp_ctx, mods);
5670
5671         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5672         if (rc != LDAP_SUCCESS) {
5673                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5674                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5675                         return NT_STATUS_MEMBER_IN_GROUP;
5676                 }
5677                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5678                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5679                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5680                 }
5681                 return NT_STATUS_UNSUCCESSFUL;
5682         }
5683
5684         return NT_STATUS_OK;
5685 }
5686
5687 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5688                                      TALLOC_CTX *tmp_ctx,
5689                                      uint32 group_rid,
5690                                      uint32 member_rid)
5691 {
5692         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5693 }
5694 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5695                                      TALLOC_CTX *tmp_ctx,
5696                                      uint32 group_rid,
5697                                      uint32 member_rid)
5698 {
5699         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5700 }
5701
5702 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5703                                           TALLOC_CTX *mem_ctx,
5704                                           struct samu *sampass)
5705 {
5706         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5707         LDAPMessage *entry = NULL;
5708         LDAPMessage *result = NULL;
5709         uint32 num_result;
5710         LDAPMod **mods = NULL;
5711         char *filter;
5712         char *escape_username;
5713         char *gidstr;
5714         const char *dn = NULL;
5715         gid_t gid;
5716         int rc;
5717
5718         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5719
5720         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5721                 DEBUG(0,("ldapsam_set_primary_group: failed to retrieve gid from user's group SID!\n"));
5722                 return NT_STATUS_UNSUCCESSFUL;
5723         }
5724         gidstr = talloc_asprintf(mem_ctx, "%u", (unsigned int)gid);
5725         if (!gidstr) {
5726                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5727                 return NT_STATUS_NO_MEMORY;
5728         }
5729
5730         escape_username = escape_ldap_string(talloc_tos(),
5731                                              pdb_get_username(sampass));
5732         if (escape_username== NULL) {
5733                 return NT_STATUS_NO_MEMORY;
5734         }
5735
5736         filter = talloc_asprintf(mem_ctx,
5737                                  "(&(uid=%s)"
5738                                  "(objectClass=%s)"
5739                                  "(objectClass=%s))",
5740                                  escape_username,
5741                                  LDAP_OBJ_POSIXACCOUNT,
5742                                  LDAP_OBJ_SAMBASAMACCOUNT);
5743
5744         TALLOC_FREE(escape_username);
5745
5746         if (filter == NULL) {
5747                 return NT_STATUS_NO_MEMORY;
5748         }
5749
5750         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5751         if (rc != LDAP_SUCCESS) {
5752                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5753                 return NT_STATUS_UNSUCCESSFUL;
5754         }
5755         talloc_autofree_ldapmsg(mem_ctx, result);
5756
5757         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5758
5759         if (num_result == 0) {
5760                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5761                 return NT_STATUS_NO_SUCH_USER;
5762         }
5763
5764         if (num_result > 1) {
5765                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5766                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5767         }
5768
5769         entry = ldap_first_entry(priv2ld(ldap_state), result);
5770         if (!entry) {
5771                 return NT_STATUS_UNSUCCESSFUL;
5772         }
5773
5774         /* retrieve the dn for later use */
5775         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5776         if (!dn) {
5777                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5778                 return NT_STATUS_NO_MEMORY;
5779         }
5780
5781         /* remove the old one, and add the new one, this way we do not risk races */
5782         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5783
5784         if (mods == NULL) {
5785                 return NT_STATUS_OK;
5786         }
5787
5788         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5789
5790         if (rc != LDAP_SUCCESS) {
5791                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5792                          pdb_get_username(sampass), gidstr));
5793                 return NT_STATUS_UNSUCCESSFUL;
5794         }
5795
5796         flush_pwnam_cache();
5797
5798         return NT_STATUS_OK;
5799 }
5800
5801
5802 /**********************************************************************
5803  trusted domains functions
5804  *********************************************************************/
5805
5806 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
5807                            const char *domain)
5808 {
5809         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
5810                                ldap_state->domain_dn);
5811 }
5812
5813 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
5814                                   TALLOC_CTX *mem_ctx,
5815                                   const char *domain, LDAPMessage **entry)
5816 {
5817         int rc;
5818         char *filter;
5819         int scope = LDAP_SCOPE_SUBTREE;
5820         const char **attrs = NULL; /* NULL: get all attrs */
5821         int attrsonly = 0; /* 0: return values too */
5822         LDAPMessage *result = NULL;
5823         char *trusted_dn;
5824         uint32 num_result;
5825
5826         filter = talloc_asprintf(talloc_tos(),
5827                                  "(&(objectClass=%s)(sambaDomainName=%s))",
5828                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
5829
5830         trusted_dn = trusteddom_dn(ldap_state, domain);
5831         if (trusted_dn == NULL) {
5832                 return False;
5833         }
5834         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
5835                             filter, attrs, attrsonly, &result);
5836
5837         if (result != NULL) {
5838                 talloc_autofree_ldapmsg(mem_ctx, result);
5839         }
5840
5841         if (rc == LDAP_NO_SUCH_OBJECT) {
5842                 *entry = NULL;
5843                 return True;
5844         }
5845
5846         if (rc != LDAP_SUCCESS) {
5847                 return False;
5848         }
5849
5850         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5851
5852         if (num_result > 1) {
5853                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
5854                           "%s object for domain '%s'?!\n",
5855                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
5856                 return False;
5857         }
5858
5859         if (num_result == 0) {
5860                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
5861                           "%s object for domain %s.\n",
5862                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
5863                 *entry = NULL;
5864         } else {
5865                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
5866         }
5867
5868         return True;
5869 }
5870
5871 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
5872                                       const char *domain,
5873                                       char** pwd,
5874                                       DOM_SID *sid,
5875                                       time_t *pass_last_set_time)
5876 {
5877         struct ldapsam_privates *ldap_state =
5878                 (struct ldapsam_privates *)methods->private_data;
5879         LDAPMessage *entry = NULL;
5880
5881         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
5882
5883         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry) ||
5884             (entry == NULL))
5885         {
5886                 return False;
5887         }
5888
5889         /* password */
5890         if (pwd != NULL) {
5891                 char *pwd_str;
5892                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5893                                 entry, "sambaClearTextPassword", talloc_tos());
5894                 if (pwd_str == NULL) {
5895                         return False;
5896                 }
5897                 /* trusteddom_pw routines do not use talloc yet... */
5898                 *pwd = SMB_STRDUP(pwd_str);
5899                 if (*pwd == NULL) {
5900                         return False;
5901                 }
5902         }
5903
5904         /* last change time */
5905         if (pass_last_set_time != NULL) {
5906                 char *time_str;
5907                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5908                                 entry, "sambaPwdLastSet", talloc_tos());
5909                 if (time_str == NULL) {
5910                         return False;
5911                 }
5912                 *pass_last_set_time = (time_t)atol(time_str);
5913         }
5914
5915         /* domain sid */
5916         if (sid != NULL) {
5917                 char *sid_str;
5918                 DOM_SID *dom_sid;
5919                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5920                                                           entry, "sambaSID",
5921                                                           talloc_tos());
5922                 if (sid_str == NULL) {
5923                         return False;
5924                 }
5925                 dom_sid = string_sid_talloc(talloc_tos(), sid_str);
5926                 if (dom_sid == NULL) {
5927                         return False;
5928                 }
5929                 sid_copy(sid, dom_sid);
5930         }
5931
5932         return True;
5933 }
5934
5935 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
5936                                       const char* domain,
5937                                       const char* pwd,
5938                                       const DOM_SID *sid)
5939 {
5940         struct ldapsam_privates *ldap_state =
5941                 (struct ldapsam_privates *)methods->private_data;
5942         LDAPMessage *entry = NULL;
5943         LDAPMod **mods = NULL;
5944         char *prev_pwd = NULL;
5945         char *trusted_dn = NULL;
5946         int rc;
5947
5948         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
5949
5950         /*
5951          * get the current entry (if there is one) in order to put the
5952          * current password into the previous password attribute
5953          */
5954         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
5955                 return False;
5956         }
5957
5958         mods = NULL;
5959         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
5960                          LDAP_OBJ_TRUSTDOM_PASSWORD);
5961         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
5962                          domain);
5963         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
5964                          sid_string_tos(sid));
5965         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
5966                          talloc_asprintf(talloc_tos(), "%li", (long int)time(NULL)));
5967         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5968                          "sambaClearTextPassword", pwd);
5969
5970         talloc_autofree_ldapmod(talloc_tos(), mods);
5971
5972         if (entry != NULL) {
5973                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
5974                                 entry, "sambaClearTextPassword", talloc_tos());
5975                 if (prev_pwd != NULL) {
5976                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
5977                                          "sambaPreviousClearTextPassword",
5978                                          prev_pwd);
5979                 }
5980         }
5981
5982         trusted_dn = trusteddom_dn(ldap_state, domain);
5983         if (trusted_dn == NULL) {
5984                 return False;
5985         }
5986         if (entry == NULL) {
5987                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
5988         } else {
5989                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
5990         }
5991
5992         if (rc != LDAP_SUCCESS) {
5993                 DEBUG(1, ("error writing trusted domain password!\n"));
5994                 return False;
5995         }
5996
5997         return True;
5998 }
5999
6000 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
6001                                       const char *domain)
6002 {
6003         int rc;
6004         struct ldapsam_privates *ldap_state =
6005                 (struct ldapsam_privates *)methods->private_data;
6006         LDAPMessage *entry = NULL;
6007         const char *trusted_dn;
6008
6009         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
6010                 return False;
6011         }
6012
6013         if (entry == NULL) {
6014                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
6015                           "%s\n", domain));
6016                 return True;
6017         }
6018
6019         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
6020                                        entry);
6021         if (trusted_dn == NULL) {
6022                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
6023                 return False;
6024         }
6025
6026         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
6027         if (rc != LDAP_SUCCESS) {
6028                 return False;
6029         }
6030
6031         return True;
6032 }
6033
6034 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
6035                                          TALLOC_CTX *mem_ctx,
6036                                          uint32 *num_domains,
6037                                          struct trustdom_info ***domains)
6038 {
6039         int rc;
6040         struct ldapsam_privates *ldap_state =
6041                 (struct ldapsam_privates *)methods->private_data;
6042         char *filter;
6043         int scope = LDAP_SCOPE_SUBTREE;
6044         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
6045         int attrsonly = 0; /* 0: return values too */
6046         LDAPMessage *result = NULL;
6047         LDAPMessage *entry = NULL;
6048
6049         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
6050                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
6051
6052         rc = smbldap_search(ldap_state->smbldap_state,
6053                             ldap_state->domain_dn,
6054                             scope,
6055                             filter,
6056                             attrs,
6057                             attrsonly,
6058                             &result);
6059
6060         if (result != NULL) {
6061                 talloc_autofree_ldapmsg(mem_ctx, result);
6062         }
6063
6064         if (rc != LDAP_SUCCESS) {
6065                 return NT_STATUS_UNSUCCESSFUL;
6066         }
6067
6068         *num_domains = 0;
6069         if (!(*domains = TALLOC_ARRAY(mem_ctx, struct trustdom_info *, 1))) {
6070                 DEBUG(1, ("talloc failed\n"));
6071                 return NT_STATUS_NO_MEMORY;
6072         }
6073
6074         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6075              entry != NULL;
6076              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6077         {
6078                 char *dom_name, *dom_sid_str;
6079                 struct trustdom_info *dom_info;
6080
6081                 dom_info = TALLOC_P(*domains, struct trustdom_info);
6082                 if (dom_info == NULL) {
6083                         DEBUG(1, ("talloc failed\n"));
6084                         return NT_STATUS_NO_MEMORY;
6085                 }
6086
6087                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6088                                                            entry,
6089                                                            "sambaDomainName",
6090                                                            talloc_tos());
6091                 if (dom_name == NULL) {
6092                         DEBUG(1, ("talloc failed\n"));
6093                         return NT_STATUS_NO_MEMORY;
6094                 }
6095                 dom_info->name = dom_name;
6096
6097                 dom_sid_str = smbldap_talloc_single_attribute(
6098                                         priv2ld(ldap_state), entry, "sambaSID",
6099                                         talloc_tos());
6100                 if (dom_sid_str == NULL) {
6101                         DEBUG(1, ("talloc failed\n"));
6102                         return NT_STATUS_NO_MEMORY;
6103                 }
6104                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6105                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6106                                   dom_sid_str));
6107                         return NT_STATUS_UNSUCCESSFUL;
6108                 }
6109
6110                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6111                              domains, num_domains);
6112
6113                 if (*domains == NULL) {
6114                         DEBUG(1, ("talloc failed\n"));
6115                         return NT_STATUS_NO_MEMORY;
6116                 }
6117         }
6118
6119         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6120         return NT_STATUS_OK;
6121 }
6122
6123
6124 /**********************************************************************
6125  Housekeeping
6126  *********************************************************************/
6127
6128 static void free_private_data(void **vp)
6129 {
6130         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6131
6132         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6133
6134         if ((*ldap_state)->result != NULL) {
6135                 ldap_msgfree((*ldap_state)->result);
6136                 (*ldap_state)->result = NULL;
6137         }
6138         if ((*ldap_state)->domain_dn != NULL) {
6139                 SAFE_FREE((*ldap_state)->domain_dn);
6140         }
6141
6142         *ldap_state = NULL;
6143
6144         /* No need to free any further, as it is talloc()ed */
6145 }
6146
6147 /*********************************************************************
6148  Intitalise the parts of the pdb_methods structure that are common to
6149  all pdb_ldap modes
6150 *********************************************************************/
6151
6152 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6153 {
6154         NTSTATUS nt_status;
6155         struct ldapsam_privates *ldap_state;
6156
6157         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6158                 return nt_status;
6159         }
6160
6161         (*pdb_method)->name = "ldapsam";
6162
6163         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6164         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6165         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6166         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6167         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6168         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6169
6170         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6171         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6172         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6173         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6174         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6175         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6176         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6177
6178         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6179         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6180
6181         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6182
6183         (*pdb_method)->capabilities = ldapsam_capabilities;
6184         (*pdb_method)->new_rid = ldapsam_new_rid;
6185
6186         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6187         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6188         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6189         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6190
6191         /* TODO: Setup private data and free */
6192
6193         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
6194                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6195                 return NT_STATUS_NO_MEMORY;
6196         }
6197
6198         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6199                                  location, &ldap_state->smbldap_state);
6200
6201         if ( !NT_STATUS_IS_OK(nt_status) ) {
6202                 return nt_status;
6203         }
6204
6205         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6206                 return NT_STATUS_NO_MEMORY;
6207         }
6208
6209         (*pdb_method)->private_data = ldap_state;
6210
6211         (*pdb_method)->free_private_data = free_private_data;
6212
6213         return NT_STATUS_OK;
6214 }
6215
6216 /**********************************************************************
6217  Initialise the 'compat' mode for pdb_ldap
6218  *********************************************************************/
6219
6220 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6221 {
6222         NTSTATUS nt_status;
6223         struct ldapsam_privates *ldap_state;
6224         char *uri = talloc_strdup( NULL, location );
6225
6226         trim_char( uri, '\"', '\"' );
6227         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6228         if ( uri )
6229                 TALLOC_FREE( uri );
6230
6231         if ( !NT_STATUS_IS_OK(nt_status) ) {
6232                 return nt_status;
6233         }
6234
6235         (*pdb_method)->name = "ldapsam_compat";
6236
6237         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6238         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6239
6240         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6241
6242         return NT_STATUS_OK;
6243 }
6244
6245 /**********************************************************************
6246  Initialise the normal mode for pdb_ldap
6247  *********************************************************************/
6248
6249 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6250 {
6251         NTSTATUS nt_status;
6252         struct ldapsam_privates *ldap_state = NULL;
6253         uint32 alg_rid_base;
6254         char *alg_rid_base_string = NULL;
6255         LDAPMessage *result = NULL;
6256         LDAPMessage *entry = NULL;
6257         DOM_SID ldap_domain_sid;
6258         DOM_SID secrets_domain_sid;
6259         char *domain_sid_string = NULL;
6260         char *dn = NULL;
6261         char *uri = talloc_strdup( NULL, location );
6262
6263         trim_char( uri, '\"', '\"' );
6264         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6265         if (uri) {
6266                 TALLOC_FREE(uri);
6267         }
6268
6269         if (!NT_STATUS_IS_OK(nt_status)) {
6270                 return nt_status;
6271         }
6272
6273         (*pdb_method)->name = "ldapsam";
6274
6275         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6276         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6277         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6278         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6279         (*pdb_method)->search_users = ldapsam_search_users;
6280         (*pdb_method)->search_groups = ldapsam_search_groups;
6281         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6282
6283         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6284                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6285                 (*pdb_method)->enum_group_memberships =
6286                         ldapsam_enum_group_memberships;
6287                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6288                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6289
6290                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6291                         (*pdb_method)->create_user = ldapsam_create_user;
6292                         (*pdb_method)->delete_user = ldapsam_delete_user;
6293                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6294                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6295                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6296                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6297                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6298                 }
6299         }
6300
6301         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6302         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6303
6304         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6305
6306         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6307                                                &result,
6308                                                ldap_state->domain_name, True);
6309
6310         if ( !NT_STATUS_IS_OK(nt_status) ) {
6311                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6312                           "info, nor add one to the domain\n"));
6313                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6314                              "will be unable to allocate new users/groups, "
6315                              "and will risk BDCs having inconsistant SIDs\n"));
6316                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6317                 return NT_STATUS_OK;
6318         }
6319
6320         /* Given that the above might fail, everything below this must be
6321          * optional */
6322
6323         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6324                                  result);
6325         if (!entry) {
6326                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6327                           "entry\n"));
6328                 ldap_msgfree(result);
6329                 return NT_STATUS_UNSUCCESSFUL;
6330         }
6331
6332         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
6333         if (!dn) {
6334                 ldap_msgfree(result);
6335                 return NT_STATUS_UNSUCCESSFUL;
6336         }
6337
6338         ldap_state->domain_dn = smb_xstrdup(dn);
6339         TALLOC_FREE(dn);
6340
6341         domain_sid_string = smbldap_talloc_single_attribute(
6342                     ldap_state->smbldap_state->ldap_struct,
6343                     entry,
6344                     get_userattr_key2string(ldap_state->schema_ver,
6345                                             LDAP_ATTR_USER_SID),
6346                     talloc_tos());
6347
6348         if (domain_sid_string) {
6349                 bool found_sid;
6350                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6351                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6352                                   "read as a valid SID\n", domain_sid_string));
6353                         ldap_msgfree(result);
6354                         TALLOC_FREE(domain_sid_string);
6355                         return NT_STATUS_INVALID_PARAMETER;
6356                 }
6357                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6358                                                      &secrets_domain_sid);
6359                 if (!found_sid || !sid_equal(&secrets_domain_sid,
6360                                              &ldap_domain_sid)) {
6361                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6362                                   "%s based on pdb_ldap results %s -> %s\n",
6363                                   ldap_state->domain_name,
6364                                   sid_string_dbg(&secrets_domain_sid),
6365                                   sid_string_dbg(&ldap_domain_sid)));
6366
6367                         /* reset secrets.tdb sid */
6368                         secrets_store_domain_sid(ldap_state->domain_name,
6369                                                  &ldap_domain_sid);
6370                         DEBUG(1, ("New global sam SID: %s\n",
6371                                   sid_string_dbg(get_global_sam_sid())));
6372                 }
6373                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6374                 TALLOC_FREE(domain_sid_string);
6375         }
6376
6377         alg_rid_base_string = smbldap_talloc_single_attribute(
6378                     ldap_state->smbldap_state->ldap_struct,
6379                     entry,
6380                     get_attr_key2string( dominfo_attr_list,
6381                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6382                     talloc_tos());
6383         if (alg_rid_base_string) {
6384                 alg_rid_base = (uint32)atol(alg_rid_base_string);
6385                 if (alg_rid_base != algorithmic_rid_base()) {
6386                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6387                                   "changed since the LDAP\n"
6388                                   "database was initialised.  Aborting. \n"));
6389                         ldap_msgfree(result);
6390                         TALLOC_FREE(alg_rid_base_string);
6391                         return NT_STATUS_UNSUCCESSFUL;
6392                 }
6393                 TALLOC_FREE(alg_rid_base_string);
6394         }
6395         ldap_msgfree(result);
6396
6397         return NT_STATUS_OK;
6398 }
6399
6400 NTSTATUS pdb_ldap_init(void)
6401 {
6402         NTSTATUS nt_status;
6403         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6404                 return nt_status;
6405
6406         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6407                 return nt_status;
6408
6409         /* Let pdb_nds register backends */
6410         pdb_nds_init();
6411
6412         return NT_STATUS_OK;
6413 }