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 2 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, write to the Free Software
  23    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24
  25 */
  26
  27 /* TODO:
  28 *  persistent connections: if using NSS LDAP, many connections are made
  29 *      however, using only one within Samba would be nice
  30 *
  31 *  Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
  32 *
  33 *  Other LDAP based login attributes: accountExpires, etc.
  34 *  (should be the domain of Samba proper, but the sam_password/struct samu
  35 *  structures don't have fields for some of these attributes)
  36 *
  37 *  SSL is done, but can't get the certificate based authentication to work
  38 *  against on my test platform (Linux 2.4, OpenLDAP 2.x)
  39 */
  40
  41 /* NOTE: this will NOT work against an Active Directory server
  42 *  due to the fact that the two password fields cannot be retrieved
  43 *  from a server; recommend using security = domain in this situation
  44 *  and/or winbind
  45 */
  46
  47 #include "includes.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         static fstring objclass_filter;
 164
 165         switch( schema_ver ) {
 166                 case SCHEMAVER_SAMBAACCOUNT:
 167                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 168                         break;
 169                 case SCHEMAVER_SAMBASAMACCOUNT:
 170                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 171                         break;
 172                 default:
 173                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 174                         break;
 175         }
 176
 177         return objclass_filter;
 178 }
 179
 180 /*****************************************************************
 181  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 182 ******************************************************************/
 183
 184 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 185 {
 186         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 187         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 188         LDAPMessage *msg = NULL;
 189         LDAPMessage *entry = NULL;
 190         TALLOC_CTX *mem_ctx;
 191         char **values = NULL;
 192         int rc, num_result, num_values, rid;
 193         pstring suffix;
 194         fstring tok;
 195         const char *p;
 196         const char **attrs;
 197
 198         /* Unfortunatly there is no proper way to detect syncrepl-support in
 199          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 200          * but do not show up in the root-DSE yet. Neither we can query the
 201          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 202          * objectclass. Currently we require lp_ldap_suffix() to show up as
 203          * namingContext.  -  Guenther
 204          */
 205
 206         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 207                 return ntstatus;
 208         }
 209
 210         if (!seq_num) {
 211                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 212                 return ntstatus;
 213         }
 214
 215         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 216                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 217                          "as top-level namingContext\n", lp_ldap_suffix()));
 218                 return ntstatus;
 219         }
 220
 221         mem_ctx = talloc_init("ldapsam_get_seq_num");
 222
 223         if (mem_ctx == NULL)
 224                 return NT_STATUS_NO_MEMORY;
 225
 226         if ((attrs = TALLOC_ARRAY(mem_ctx, const char *, 2)) == NULL) {
 227                 ntstatus = NT_STATUS_NO_MEMORY;
 228                 goto done;
 229         }
 230
 231         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 232         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 233         if (rid > 0) {
 234
 235                 /* consumer syncreplCookie: */
 236                 /* csn=20050126161620Z#0000001#00#00000 */
 237                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 238                 attrs[1] = NULL;
 239                 pstr_sprintf( suffix, "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 240
 241         } else {
 242
 243                 /* provider contextCSN */
 244                 /* 20050126161620Z#000009#00#000000 */
 245                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 246                 attrs[1] = NULL;
 247                 pstr_sprintf( suffix, "cn=ldapsync,%s", lp_ldap_suffix());
 248
 249         }
 250
 251         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 252                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 253
 254         if (rc != LDAP_SUCCESS) {
 255                 goto done;
 256         }
 257
 258         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 259         if (num_result != 1) {
 260                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 261                 goto done;
 262         }
 263
 264         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 265         if (entry == NULL) {
 266                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 267                 goto done;
 268         }
 269
 270         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 271         if (values == NULL) {
 272                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 273                 goto done;
 274         }
 275
 276         num_values = ldap_count_values(values);
 277         if (num_values == 0) {
 278                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 279                 goto done;
 280         }
 281
 282         p = values[0];
 283         if (!next_token(&p, tok, "#", sizeof(tok))) {
 284                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 285                 goto done;
 286         }
 287
 288         p = tok;
 289         if (!strncmp(p, "csn=", strlen("csn=")))
 290                 p += strlen("csn=");
 291
 292         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 293
 294         *seq_num = generalized_to_unix_time(p);
 295
 296         /* very basic sanity check */
 297         if (*seq_num <= 0) {
 298                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 299                         (int)*seq_num));
 300                 goto done;
 301         }
 302
 303         ntstatus = NT_STATUS_OK;
 304
 305  done:
 306         if (values != NULL)
 307                 ldap_value_free(values);
 308         if (msg != NULL)
 309                 ldap_msgfree(msg);
 310         if (mem_ctx)
 311                 talloc_destroy(mem_ctx);
 312
 313         return ntstatus;
 314 }
 315
 316 /*******************************************************************
 317  Run the search by name.
 318 ******************************************************************/
 319
 320 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 321                                           const char *user,
 322                                           LDAPMessage ** result,
 323                                           const char **attr)
 324 {
 325         pstring filter;
 326         char *escape_user = escape_ldap_string_alloc(user);
 327
 328         if (!escape_user) {
 329                 return LDAP_NO_MEMORY;
 330         }
 331
 332         /*
 333          * in the filter expression, replace %u with the real name
 334          * so in ldap filter, %u MUST exist :-)
 335          */
 336         pstr_sprintf(filter, "(&%s%s)", "(uid=%u)",
 337                 get_objclass_filter(ldap_state->schema_ver));
 338
 339         /*
 340          * have to use this here because $ is filtered out
 341            * in pstring_sub
 342          */
 343
 344
 345         all_string_sub(filter, "%u", escape_user, sizeof(pstring));
 346         SAFE_FREE(escape_user);
 347
 348         return smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
 349 }
 350
 351 /*******************************************************************
 352  Run the search by rid.
 353 ******************************************************************/
 354
 355 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 356                                          uint32 rid, LDAPMessage ** result,
 357                                          const char **attr)
 358 {
 359         pstring filter;
 360         int rc;
 361
 362         pstr_sprintf(filter, "(&(rid=%i)%s)", rid,
 363                 get_objclass_filter(ldap_state->schema_ver));
 364
 365         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
 366
 367         return rc;
 368 }
 369
 370 /*******************************************************************
 371  Run the search by SID.
 372 ******************************************************************/
 373
 374 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 375                                          const DOM_SID *sid, LDAPMessage ** result,
 376                                          const char **attr)
 377 {
 378         pstring filter;
 379         int rc;
 380         fstring sid_string;
 381
 382         pstr_sprintf(filter, "(&(%s=%s)%s)",
 383                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
 384                 sid_to_string(sid_string, sid),
 385                 get_objclass_filter(ldap_state->schema_ver));
 386
 387         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
 388
 389         return rc;
 390 }
 391
 392 /*******************************************************************
 393  Delete complete object or objectclass and attrs from
 394  object found in search_result depending on lp_ldap_delete_dn
 395 ******************************************************************/
 396
 397 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 398                                 TALLOC_CTX *mem_ctx,
 399                                 LDAPMessage *entry,
 400                                 const char *objectclass,
 401                                 const char **attrs)
 402 {
 403         LDAPMod **mods = NULL;
 404         char *name;
 405         const char *dn;
 406         BerElement *ptr = NULL;
 407
 408         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 409         if (dn == NULL) {
 410                 return LDAP_NO_MEMORY;
 411         }
 412
 413         if (lp_ldap_delete_dn()) {
 414                 return smbldap_delete(priv->smbldap_state, dn);
 415         }
 416
 417         /* Ok, delete only the SAM attributes */
 418
 419         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 420              name != NULL;
 421              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 422                 const char **attrib;
 423
 424                 /* We are only allowed to delete the attributes that
 425                    really exist. */
 426
 427                 for (attrib = attrs; *attrib != NULL; attrib++) {
 428                         if (strequal(*attrib, name)) {
 429                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 430                                            "attribute %s\n", name));
 431                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 432                                                 NULL);
 433                         }
 434                 }
 435                 ldap_memfree(name);
 436         }
 437
 438         if (ptr != NULL) {
 439                 ber_free(ptr, 0);
 440         }
 441
 442         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 443         talloc_autofree_ldapmod(mem_ctx, mods);
 444
 445         return smbldap_modify(priv->smbldap_state, dn, mods);
 446 }
 447
 448 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 449 {
 450         pstring temp;
 451         struct tm tm;
 452
 453         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 454                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 455                         temp))
 456                 return (time_t) 0;
 457
 458         strptime(temp, "%Y%m%d%H%M%SZ", &tm);
 459         tzset();
 460         return timegm(&tm);
 461 }
 462
 463 /**********************************************************************
 464  Initialize struct samu from an LDAP query.
 465  (Based on init_sam_from_buffer in pdb_tdb.c)
 466 *********************************************************************/
 467
 468 static BOOL init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 469                                 struct samu * sampass,
 470                                 LDAPMessage * entry)
 471 {
 472         time_t  logon_time,
 473                         logoff_time,
 474                         kickoff_time,
 475                         pass_last_set_time,
 476                         pass_can_change_time,
 477                         pass_must_change_time,
 478                         ldap_entry_time,
 479                         bad_password_time;
 480         pstring         username,
 481                         domain,
 482                         nt_username,
 483                         fullname,
 484                         homedir,
 485                         dir_drive,
 486                         logon_script,
 487                         profile_path,
 488                         acct_desc,
 489                         workstations;
 490         char            munged_dial[2048];
 491         uint32          user_rid;
 492         uint8           smblmpwd[LM_HASH_LEN],
 493                         smbntpwd[NT_HASH_LEN];
 494         BOOL            use_samba_attrs = True;
 495         uint32          acct_ctrl = 0;
 496         uint16          logon_divs;
 497         uint16          bad_password_count = 0,
 498                         logon_count = 0;
 499         uint32 hours_len;
 500         uint8           hours[MAX_HOURS_LEN];
 501         pstring temp;
 502         LOGIN_CACHE     *cache_entry = NULL;
 503         uint32          pwHistLen;
 504         pstring         tmpstring;
 505         BOOL expand_explicit = lp_passdb_expand_explicit();
 506
 507         /*
 508          * do a little initialization
 509          */
 510         username[0]     = '\0';
 511         domain[0]       = '\0';
 512         nt_username[0]  = '\0';
 513         fullname[0]     = '\0';
 514         homedir[0]      = '\0';
 515         dir_drive[0]    = '\0';
 516         logon_script[0] = '\0';
 517         profile_path[0] = '\0';
 518         acct_desc[0]    = '\0';
 519         munged_dial[0]  = '\0';
 520         workstations[0] = '\0';
 521
 522
 523         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 524                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 525                 return False;
 526         }
 527
 528         if (priv2ld(ldap_state) == NULL) {
 529                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 530                           "ldap_struct is NULL!\n"));
 531                 return False;
 532         }
 533
 534         if (!smbldap_get_single_pstring(priv2ld(ldap_state), entry, "uid",
 535                                         username)) {
 536                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 537                           "this user!\n"));
 538                 return False;
 539         }
 540
 541         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 542
 543         pstrcpy(nt_username, username);
 544
 545         pstrcpy(domain, ldap_state->domain_name);
 546
 547         pdb_set_username(sampass, username, PDB_SET);
 548
 549         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 550         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 551
 552         /* deal with different attributes between the schema first */
 553
 554         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 555                 if (smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 556                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID), temp)) {
 557                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 558                 }
 559         } else {
 560                 if (smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 561                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID), temp)) {
 562                         user_rid = (uint32)atol(temp);
 563                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 564                 }
 565         }
 566
 567         if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
 568                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 569                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
 570                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
 571                         username));
 572                 return False;
 573         }
 574
 575         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 576                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET), temp)) {
 577                 /* leave as default */
 578         } else {
 579                 pass_last_set_time = (time_t) atol(temp);
 580                 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
 581         }
 582
 583         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 584                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp)) {
 585                 /* leave as default */
 586         } else {
 587                 logon_time = (time_t) atol(temp);
 588                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 589         }
 590
 591         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 592                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp)) {
 593                 /* leave as default */
 594         } else {
 595                 logoff_time = (time_t) atol(temp);
 596                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 597         }
 598
 599         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 600                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp)) {
 601                 /* leave as default */
 602         } else {
 603                 kickoff_time = (time_t) atol(temp);
 604                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 605         }
 606
 607         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 608                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp)) {
 609                 /* leave as default */
 610         } else {
 611                 pass_can_change_time = (time_t) atol(temp);
 612                 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
 613         }
 614
 615         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 616                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp)) {
 617                 /* leave as default */
 618         } else {
 619                 pass_must_change_time = (time_t) atol(temp);
 620                 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
 621         }
 622
 623         /* recommend that 'gecos' and 'displayName' should refer to the same
 624          * attribute OID.  userFullName depreciated, only used by Samba
 625          * primary rules of LDAP: don't make a new attribute when one is already defined
 626          * that fits your needs; using cn then displayName rather than 'userFullName'
 627          */
 628
 629         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 630                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME), fullname)) {
 631                 if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 632                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_CN), fullname)) {
 633                         /* leave as default */
 634                 } else {
 635                         pdb_set_fullname(sampass, fullname, PDB_SET);
 636                 }
 637         } else {
 638                 pdb_set_fullname(sampass, fullname, PDB_SET);
 639         }
 640
 641         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 642                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE), dir_drive))
 643         {
 644                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 645         } else {
 646                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 647         }
 648
 649         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 650                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH), homedir))
 651         {
 652                 pdb_set_homedir( sampass,
 653                         talloc_sub_basic(sampass, username, lp_logon_home()),
 654                         PDB_DEFAULT );
 655         } else {
 656                 pstrcpy( tmpstring, homedir );
 657                 if (expand_explicit) {
 658                         standard_sub_basic( username, tmpstring,
 659                                             sizeof(tmpstring) );
 660                 }
 661                 pdb_set_homedir(sampass, tmpstring, PDB_SET);
 662         }
 663
 664         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 665                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT), logon_script))
 666         {
 667                 pdb_set_logon_script( sampass,
 668                         talloc_sub_basic(sampass, username, lp_logon_script()),
 669                         PDB_DEFAULT );
 670         } else {
 671                 pstrcpy( tmpstring, logon_script );
 672                 if (expand_explicit) {
 673                         standard_sub_basic( username, tmpstring,
 674                                             sizeof(tmpstring) );
 675                 }
 676                 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
 677         }
 678
 679         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 680                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH), profile_path))
 681         {
 682                 pdb_set_profile_path( sampass,
 683                         talloc_sub_basic( sampass, username, lp_logon_path()),
 684                         PDB_DEFAULT );
 685         } else {
 686                 pstrcpy( tmpstring, profile_path );
 687                 if (expand_explicit) {
 688                         standard_sub_basic( username, tmpstring,
 689                                             sizeof(tmpstring) );
 690                 }
 691                 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
 692         }
 693
 694         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 695                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC), acct_desc))
 696         {
 697                 /* leave as default */
 698         } else {
 699                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 700         }
 701
 702         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 703                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS), workstations)) {
 704                 /* leave as default */;
 705         } else {
 706                 pdb_set_workstations(sampass, workstations, PDB_SET);
 707         }
 708
 709         if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 710                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL), munged_dial, sizeof(munged_dial))) {
 711                 /* leave as default */;
 712         } else {
 713                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 714         }
 715
 716         /* FIXME: hours stuff should be cleaner */
 717
 718         logon_divs = 168;
 719         hours_len = 21;
 720         memset(hours, 0xff, hours_len);
 721
 722         if (ldap_state->is_nds_ldap) {
 723                 char *user_dn;
 724                 size_t pwd_len;
 725                 char clear_text_pw[512];
 726
 727                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 728                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 729                 user_dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
 730                 if (user_dn != NULL) {
 731                         DEBUG(3, ("init_sam_from_ldap: smbldap_get_dn(%s) returned '%s'\n", username, user_dn));
 732
 733                         pwd_len = sizeof(clear_text_pw);
 734                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 735                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 736                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 737                                         SAFE_FREE(user_dn);
 738                                         return False;
 739                                 }
 740                                 ZERO_STRUCT(smblmpwd);
 741                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 742                                         SAFE_FREE(user_dn);
 743                                         return False;
 744                                 }
 745                                 ZERO_STRUCT(smbntpwd);
 746                                 use_samba_attrs = False;
 747                         }
 748
 749                         SAFE_FREE(user_dn);
 750
 751                 } else {
 752                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 753                 }
 754         }
 755
 756         if (use_samba_attrs) {
 757                 if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 758                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW), temp)) {
 759                         /* leave as default */
 760                 } else {
 761                         pdb_gethexpwd(temp, smblmpwd);
 762                         memset((char *)temp, '\0', strlen(temp)+1);
 763                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET))
 764                                 return False;
 765                         ZERO_STRUCT(smblmpwd);
 766                 }
 767
 768                 if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 769                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW), temp)) {
 770                         /* leave as default */
 771                 } else {
 772                         pdb_gethexpwd(temp, smbntpwd);
 773                         memset((char *)temp, '\0', strlen(temp)+1);
 774                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET))
 775                                 return False;
 776                         ZERO_STRUCT(smbntpwd);
 777                 }
 778         }
 779
 780         pwHistLen = 0;
 781
 782         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
 783         if (pwHistLen > 0){
 784                 uint8 *pwhist = NULL;
 785                 int i;
 786                 char history_string[MAX_PW_HISTORY_LEN*64];
 787
 788                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 789
 790                 if ((pwhist = SMB_MALLOC(pwHistLen * PW_HISTORY_ENTRY_LEN)) == NULL){
 791                         DEBUG(0, ("init_sam_from_ldap: malloc failed!\n"));
 792                         return False;
 793                 }
 794                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 795
 796                 if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 797                                                   get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
 798                                                   history_string, sizeof(history_string))) {
 799                         /* leave as default - zeros */
 800                 } else {
 801                         BOOL hex_failed = False;
 802                         for (i = 0; i < pwHistLen; i++){
 803                                 /* Get the 16 byte salt. */
 804                                 if (!pdb_gethexpwd(&history_string[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 805                                         hex_failed = True;
 806                                         break;
 807                                 }
 808                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 809                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 810                                                 &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN])) {
 811                                         hex_failed = True;
 812                                         break;
 813                                 }
 814                         }
 815                         if (hex_failed) {
 816                                 DEBUG(0,("init_sam_from_ldap: Failed to get password history for user %s\n",
 817                                         username));
 818                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 819                         }
 820                 }
 821                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 822                         SAFE_FREE(pwhist);
 823                         return False;
 824                 }
 825                 SAFE_FREE(pwhist);
 826         }
 827
 828         if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 829                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO), temp)) {
 830                 acct_ctrl |= ACB_NORMAL;
 831         } else {
 832                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 833
 834                 if (acct_ctrl == 0)
 835                         acct_ctrl |= ACB_NORMAL;
 836
 837                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 838         }
 839
 840         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 841         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 842
 843         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 844                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_COUNT), temp)) {
 845                         /* leave as default */
 846         } else {
 847                 bad_password_count = (uint32) atol(temp);
 848                 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
 849         }
 850
 851         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 852                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_TIME), temp)) {
 853                 /* leave as default */
 854         } else {
 855                 bad_password_time = (time_t) atol(temp);
 856                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
 857         }
 858
 859
 860         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 861                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_COUNT), temp)) {
 862                         /* leave as default */
 863         } else {
 864                 logon_count = (uint32) atol(temp);
 865                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
 866         }
 867
 868         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
 869
 870         if(!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 871                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_HOURS), temp)) {
 872                         /* leave as default */
 873         } else {
 874                 pdb_gethexhours(temp, hours);
 875                 memset((char *)temp, '\0', strlen(temp) +1);
 876                 pdb_set_hours(sampass, hours, PDB_SET);
 877                 ZERO_STRUCT(hours);
 878         }
 879
 880         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
 881                 if (smbldap_get_single_pstring(priv2ld(ldap_state), entry,
 882                                                "uidNumber", temp)) {
 883                         /* We've got a uid, feed the cache */
 884                         uid_t uid = strtoul(temp, NULL, 10);
 885                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
 886                 }
 887         }
 888
 889         /* check the timestamp of the cache vs ldap entry */
 890         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
 891                                                             entry)))
 892                 return True;
 893
 894         /* see if we have newer updates */
 895         if (!(cache_entry = login_cache_read(sampass))) {
 896                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
 897                            (unsigned int)pdb_get_bad_password_count(sampass),
 898                            (unsigned int)pdb_get_bad_password_time(sampass)));
 899                 return True;
 900         }
 901
 902         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
 903                   (unsigned int)ldap_entry_time, (unsigned int)cache_entry->entry_timestamp,
 904                   (unsigned int)cache_entry->bad_password_time));
 905
 906         if (ldap_entry_time > cache_entry->entry_timestamp) {
 907                 /* cache is older than directory , so
 908                    we need to delete the entry but allow the
 909                    fields to be written out */
 910                 login_cache_delentry(sampass);
 911         } else {
 912                 /* read cache in */
 913                 pdb_set_acct_ctrl(sampass,
 914                                   pdb_get_acct_ctrl(sampass) |
 915                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
 916                                   PDB_SET);
 917                 pdb_set_bad_password_count(sampass,
 918                                            cache_entry->bad_password_count,
 919                                            PDB_SET);
 920                 pdb_set_bad_password_time(sampass,
 921                                           cache_entry->bad_password_time,
 922                                           PDB_SET);
 923         }
 924
 925         SAFE_FREE(cache_entry);
 926         return True;
 927 }
 928
 929 /**********************************************************************
 930  Initialize the ldap db from a struct samu. Called on update.
 931  (Based on init_buffer_from_sam in pdb_tdb.c)
 932 *********************************************************************/
 933
 934 static BOOL init_ldap_from_sam (struct ldapsam_privates *ldap_state,
 935                                 LDAPMessage *existing,
 936                                 LDAPMod *** mods, struct samu * sampass,
 937                                 BOOL (*need_update)(const struct samu *,
 938                                                     enum pdb_elements))
 939 {
 940         pstring temp;
 941         uint32 rid;
 942
 943         if (mods == NULL || sampass == NULL) {
 944                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
 945                 return False;
 946         }
 947
 948         *mods = NULL;
 949
 950         /*
 951          * took out adding "objectclass: sambaAccount"
 952          * do this on a per-mod basis
 953          */
 954         if (need_update(sampass, PDB_USERNAME)) {
 955                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 956                               "uid", pdb_get_username(sampass));
 957                 if (ldap_state->is_nds_ldap) {
 958                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 959                                       "cn", pdb_get_username(sampass));
 960                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 961                                       "sn", pdb_get_username(sampass));
 962                 }
 963         }
 964
 965         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
 966
 967         /* only update the RID if we actually need to */
 968         if (need_update(sampass, PDB_USERSID)) {
 969                 fstring sid_string;
 970                 fstring dom_sid_string;
 971                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
 972
 973                 switch ( ldap_state->schema_ver ) {
 974                         case SCHEMAVER_SAMBAACCOUNT:
 975                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
 976                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
 977                                                 sid_to_string(sid_string, user_sid),
 978                                                 sid_to_string(dom_sid_string, &ldap_state->domain_sid)));
 979                                         return False;
 980                                 }
 981                                 slprintf(temp, sizeof(temp) - 1, "%i", rid);
 982                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 983                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
 984                                         temp);
 985                                 break;
 986
 987                         case SCHEMAVER_SAMBASAMACCOUNT:
 988                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 989                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
 990                                         sid_to_string(sid_string, user_sid));
 991                                 break;
 992
 993                         default:
 994                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
 995                                 break;
 996                 }
 997         }
 998
 999         /* we don't need to store the primary group RID - so leaving it
1000            'free' to hang off the unix primary group makes life easier */
1001
1002         if (need_update(sampass, PDB_GROUPSID)) {
1003                 fstring sid_string;
1004                 fstring dom_sid_string;
1005                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1006
1007                 switch ( ldap_state->schema_ver ) {
1008                         case SCHEMAVER_SAMBAACCOUNT:
1009                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1010                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1011                                                 sid_to_string(sid_string, group_sid),
1012                                                 sid_to_string(dom_sid_string, &ldap_state->domain_sid)));
1013                                         return False;
1014                                 }
1015
1016                                 slprintf(temp, sizeof(temp) - 1, "%i", rid);
1017                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1018                                         get_userattr_key2string(ldap_state->schema_ver,
1019                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1020                                 break;
1021
1022                         case SCHEMAVER_SAMBASAMACCOUNT:
1023                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1024                                         get_userattr_key2string(ldap_state->schema_ver,
1025                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_string(sid_string, group_sid));
1026                                 break;
1027
1028                         default:
1029                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1030                                 break;
1031                 }
1032
1033         }
1034
1035         /* displayName, cn, and gecos should all be the same
1036          *  most easily accomplished by giving them the same OID
1037          *  gecos isn't set here b/c it should be handled by the
1038          *  add-user script
1039          *  We change displayName only and fall back to cn if
1040          *  it does not exist.
1041          */
1042
1043         if (need_update(sampass, PDB_FULLNAME))
1044                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1045                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1046                         pdb_get_fullname(sampass));
1047
1048         if (need_update(sampass, PDB_ACCTDESC))
1049                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1050                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1051                         pdb_get_acct_desc(sampass));
1052
1053         if (need_update(sampass, PDB_WORKSTATIONS))
1054                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1055                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1056                         pdb_get_workstations(sampass));
1057
1058         if (need_update(sampass, PDB_MUNGEDDIAL))
1059                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1060                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1061                         pdb_get_munged_dial(sampass));
1062
1063         if (need_update(sampass, PDB_SMBHOME))
1064                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1065                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1066                         pdb_get_homedir(sampass));
1067
1068         if (need_update(sampass, PDB_DRIVE))
1069                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1070                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1071                         pdb_get_dir_drive(sampass));
1072
1073         if (need_update(sampass, PDB_LOGONSCRIPT))
1074                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1075                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1076                         pdb_get_logon_script(sampass));
1077
1078         if (need_update(sampass, PDB_PROFILE))
1079                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1080                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1081                         pdb_get_profile_path(sampass));
1082
1083         slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logon_time(sampass));
1084         if (need_update(sampass, PDB_LOGONTIME))
1085                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1086                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1087
1088         slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logoff_time(sampass));
1089         if (need_update(sampass, PDB_LOGOFFTIME))
1090                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1091                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1092
1093         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_kickoff_time(sampass));
1094         if (need_update(sampass, PDB_KICKOFFTIME))
1095                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1096                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1097
1098         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_can_change_time(sampass));
1099         if (need_update(sampass, PDB_CANCHANGETIME))
1100                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1101                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1102
1103         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_must_change_time(sampass));
1104         if (need_update(sampass, PDB_MUSTCHANGETIME))
1105                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1106                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1107
1108
1109         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1110                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1111
1112                 if (need_update(sampass, PDB_LMPASSWD)) {
1113                         const uchar *lm_pw =  pdb_get_lanman_passwd(sampass);
1114                         if (lm_pw) {
1115                                 pdb_sethexpwd(temp, lm_pw,
1116                                               pdb_get_acct_ctrl(sampass));
1117                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1118                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1119                                                  temp);
1120                         } else {
1121                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1122                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1123                                                  NULL);
1124                         }
1125                 }
1126                 if (need_update(sampass, PDB_NTPASSWD)) {
1127                         const uchar *nt_pw =  pdb_get_nt_passwd(sampass);
1128                         if (nt_pw) {
1129                                 pdb_sethexpwd(temp, nt_pw,
1130                                               pdb_get_acct_ctrl(sampass));
1131                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1132                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1133                                                  temp);
1134                         } else {
1135                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1136                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1137                                                  NULL);
1138                         }
1139                 }
1140
1141                 if (need_update(sampass, PDB_PWHISTORY)) {
1142                         uint32 pwHistLen = 0;
1143                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1144                         if (pwHistLen == 0) {
1145                                 /* Remove any password history from the LDAP store. */
1146                                 memset(temp, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1147                                 temp[64] = '\0';
1148                         } else {
1149                                 int i;
1150                                 uint32 currHistLen = 0;
1151                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1152                                 if (pwhist != NULL) {
1153                                         /* We can only store (sizeof(pstring)-1)/64 password history entries. */
1154                                         pwHistLen = MIN(pwHistLen, ((sizeof(temp)-1)/64));
1155                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1156                                                 /* Store the salt. */
1157                                                 pdb_sethexpwd(&temp[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1158                                                 /* Followed by the md5 hash of salt + md4 hash */
1159                                                 pdb_sethexpwd(&temp[(i*64)+32],
1160                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1161                                                 DEBUG(100, ("temp=%s\n", temp));
1162                                         }
1163                                 }
1164                         }
1165                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1166                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1167                                          temp);
1168                 }
1169
1170                 if (need_update(sampass, PDB_PASSLASTSET)) {
1171                         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_last_set_time(sampass));
1172                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1173                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1174                                 temp);
1175                 }
1176         }
1177
1178         if (need_update(sampass, PDB_HOURS)) {
1179                 const uint8 *hours = pdb_get_hours(sampass);
1180                 if (hours) {
1181                         pdb_sethexhours(temp, hours);
1182                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1183                                 existing,
1184                                 mods,
1185                                 get_userattr_key2string(ldap_state->schema_ver,
1186                                                 LDAP_ATTR_LOGON_HOURS),
1187                                 temp);
1188                 }
1189         }
1190
1191         if (need_update(sampass, PDB_ACCTCTRL))
1192                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1193                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1194                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1195
1196         /* password lockout cache:
1197            - If we are now autolocking or clearing, we write to ldap
1198            - If we are clearing, we delete the cache entry
1199            - If the count is > 0, we update the cache
1200
1201            This even means when autolocking, we cache, just in case the
1202            update doesn't work, and we have to cache the autolock flag */
1203
1204         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1205             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1206                 uint16 badcount = pdb_get_bad_password_count(sampass);
1207                 time_t badtime = pdb_get_bad_password_time(sampass);
1208                 uint32 pol;
1209                 pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &pol);
1210
1211                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1212                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1213
1214                 if ((badcount >= pol) || (badcount == 0)) {
1215                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1216                                 (unsigned int)badcount, (unsigned int)badtime));
1217                         slprintf (temp, sizeof (temp) - 1, "%li", (long)badcount);
1218                         smbldap_make_mod(
1219                                 ldap_state->smbldap_state->ldap_struct,
1220                                 existing, mods,
1221                                 get_userattr_key2string(
1222                                         ldap_state->schema_ver,
1223                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1224                                 temp);
1225
1226                         slprintf (temp, sizeof (temp) - 1, "%li", badtime);
1227                         smbldap_make_mod(
1228                                 ldap_state->smbldap_state->ldap_struct,
1229                                 existing, mods,
1230                                 get_userattr_key2string(
1231                                         ldap_state->schema_ver,
1232                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1233                                 temp);
1234                 }
1235                 if (badcount == 0) {
1236                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1237                         login_cache_delentry(sampass);
1238                 } else {
1239                         LOGIN_CACHE cache_entry;
1240
1241                         cache_entry.entry_timestamp = time(NULL);
1242                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1243                         cache_entry.bad_password_count = badcount;
1244                         cache_entry.bad_password_time = badtime;
1245
1246                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1247                         login_cache_write(sampass, cache_entry);
1248                 }
1249         }
1250
1251         return True;
1252 }
1253
1254 /**********************************************************************
1255  Connect to LDAP server for password enumeration.
1256 *********************************************************************/
1257
1258 static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, BOOL update, uint32 acb_mask)
1259 {
1260         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1261         int rc;
1262         pstring filter, suffix;
1263         const char **attr_list;
1264         BOOL machine_mask = False, user_mask = False;
1265
1266         pstr_sprintf( filter, "(&%s%s)", "(uid=%u)",
1267                 get_objclass_filter(ldap_state->schema_ver));
1268         all_string_sub(filter, "%u", "*", sizeof(pstring));
1269
1270         machine_mask    = ((acb_mask != 0) && (acb_mask & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)));
1271         user_mask       = ((acb_mask != 0) && (acb_mask & ACB_NORMAL));
1272
1273         if (machine_mask) {
1274                 pstrcpy(suffix, lp_ldap_machine_suffix());
1275         } else if (user_mask) {
1276                 pstrcpy(suffix, lp_ldap_user_suffix());
1277         } else {
1278                 pstrcpy(suffix, lp_ldap_suffix());
1279         }
1280
1281         DEBUG(10,("ldapsam_setsampwent: LDAP Query for acb_mask 0x%x will use suffix %s\n",
1282                 acb_mask, suffix));
1283
1284         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1285         rc = smbldap_search(ldap_state->smbldap_state, suffix, LDAP_SCOPE_SUBTREE, filter,
1286                             attr_list, 0, &ldap_state->result);
1287         TALLOC_FREE( attr_list );
1288
1289         if (rc != LDAP_SUCCESS) {
1290                 DEBUG(0, ("ldapsam_setsampwent: LDAP search failed: %s\n", ldap_err2string(rc)));
1291                 DEBUG(3, ("ldapsam_setsampwent: Query was: %s, %s\n", suffix, filter));
1292                 ldap_msgfree(ldap_state->result);
1293                 ldap_state->result = NULL;
1294                 return NT_STATUS_UNSUCCESSFUL;
1295         }
1296
1297         DEBUG(2, ("ldapsam_setsampwent: %d entries in the base %s\n",
1298                 ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
1299                 ldap_state->result), suffix));
1300
1301         ldap_state->entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
1302                                  ldap_state->result);
1303         ldap_state->index = 0;
1304
1305         return NT_STATUS_OK;
1306 }
1307
1308 /**********************************************************************
1309  End enumeration of the LDAP password list.
1310 *********************************************************************/
1311
1312 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1313 {
1314         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1315         if (ldap_state->result) {
1316                 ldap_msgfree(ldap_state->result);
1317                 ldap_state->result = NULL;
1318         }
1319 }
1320
1321 /**********************************************************************
1322 Get the next entry in the LDAP password database.
1323 *********************************************************************/
1324
1325 static NTSTATUS ldapsam_getsampwent(struct pdb_methods *my_methods,
1326                                     struct samu *user)
1327 {
1328         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1329         struct ldapsam_privates *ldap_state =
1330                 (struct ldapsam_privates *)my_methods->private_data;
1331         BOOL bret = False;
1332
1333         while (!bret) {
1334                 if (!ldap_state->entry)
1335                         return ret;
1336
1337                 ldap_state->index++;
1338                 bret = init_sam_from_ldap(ldap_state, user, ldap_state->entry);
1339
1340                 ldap_state->entry = ldap_next_entry(priv2ld(ldap_state),
1341                                                     ldap_state->entry);
1342         }
1343
1344         return NT_STATUS_OK;
1345 }
1346
1347 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1348                         const char *new_attr)
1349 {
1350         int i;
1351
1352         if (new_attr == NULL) {
1353                 return;
1354         }
1355
1356         for (i=0; (*attr_list)[i] != NULL; i++) {
1357                 ;
1358         }
1359
1360         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1361                                             const char *,  i+2);
1362         SMB_ASSERT((*attr_list) != NULL);
1363         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1364         (*attr_list)[i+1] = NULL;
1365 }
1366
1367 /**********************************************************************
1368 Get struct samu entry from LDAP by username.
1369 *********************************************************************/
1370
1371 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1372 {
1373         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1374         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1375         LDAPMessage *result = NULL;
1376         LDAPMessage *entry = NULL;
1377         int count;
1378         const char ** attr_list;
1379         int rc;
1380
1381         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1382         append_attr(user, &attr_list,
1383                     get_userattr_key2string(ldap_state->schema_ver,
1384                                             LDAP_ATTR_MOD_TIMESTAMP));
1385         append_attr(user, &attr_list, "uidNumber");
1386         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1387                                            attr_list);
1388         TALLOC_FREE( attr_list );
1389
1390         if ( rc != LDAP_SUCCESS )
1391                 return NT_STATUS_NO_SUCH_USER;
1392
1393         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1394
1395         if (count < 1) {
1396                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1397                 ldap_msgfree(result);
1398                 return NT_STATUS_NO_SUCH_USER;
1399         } else if (count > 1) {
1400                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1401                 ldap_msgfree(result);
1402                 return NT_STATUS_NO_SUCH_USER;
1403         }
1404
1405         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1406         if (entry) {
1407                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1408                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1409                         ldap_msgfree(result);
1410                         return NT_STATUS_NO_SUCH_USER;
1411                 }
1412                 pdb_set_backend_private_data(user, result, NULL,
1413                                              my_methods, PDB_CHANGED);
1414                 talloc_autofree_ldapmsg(user, result);
1415                 ret = NT_STATUS_OK;
1416         } else {
1417                 ldap_msgfree(result);
1418         }
1419         return ret;
1420 }
1421
1422 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1423                                    const DOM_SID *sid, LDAPMessage **result)
1424 {
1425         int rc = -1;
1426         const char ** attr_list;
1427         uint32 rid;
1428
1429         switch ( ldap_state->schema_ver ) {
1430                 case SCHEMAVER_SAMBASAMACCOUNT: {
1431                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1432                         if (tmp_ctx == NULL) {
1433                                 return LDAP_NO_MEMORY;
1434                         }
1435
1436                         attr_list = get_userattr_list(tmp_ctx,
1437                                                       ldap_state->schema_ver);
1438                         append_attr(tmp_ctx, &attr_list,
1439                                     get_userattr_key2string(
1440                                             ldap_state->schema_ver,
1441                                             LDAP_ATTR_MOD_TIMESTAMP));
1442                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1443                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1444                                                           result, attr_list);
1445                         TALLOC_FREE(tmp_ctx);
1446
1447                         if ( rc != LDAP_SUCCESS )
1448                                 return rc;
1449                         break;
1450                 }
1451
1452                 case SCHEMAVER_SAMBAACCOUNT:
1453                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1454                                 return rc;
1455                         }
1456
1457                         attr_list = get_userattr_list(NULL,
1458                                                       ldap_state->schema_ver);
1459                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1460                         TALLOC_FREE( attr_list );
1461
1462                         if ( rc != LDAP_SUCCESS )
1463                                 return rc;
1464                         break;
1465         }
1466         return rc;
1467 }
1468
1469 /**********************************************************************
1470  Get struct samu entry from LDAP by SID.
1471 *********************************************************************/
1472
1473 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1474 {
1475         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1476         LDAPMessage *result = NULL;
1477         LDAPMessage *entry = NULL;
1478         int count;
1479         int rc;
1480         fstring sid_string;
1481
1482         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1483                                           sid, &result);
1484         if (rc != LDAP_SUCCESS)
1485                 return NT_STATUS_NO_SUCH_USER;
1486
1487         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1488
1489         if (count < 1) {
1490                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] count=%d\n", sid_to_string(sid_string, sid),
1491                        count));
1492                 ldap_msgfree(result);
1493                 return NT_STATUS_NO_SUCH_USER;
1494         }  else if (count > 1) {
1495                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID [%s]. Failing. count=%d\n", sid_to_string(sid_string, sid),
1496                        count));
1497                 ldap_msgfree(result);
1498                 return NT_STATUS_NO_SUCH_USER;
1499         }
1500
1501         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1502         if (!entry) {
1503                 ldap_msgfree(result);
1504                 return NT_STATUS_NO_SUCH_USER;
1505         }
1506
1507         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1508                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1509                 ldap_msgfree(result);
1510                 return NT_STATUS_NO_SUCH_USER;
1511         }
1512
1513         pdb_set_backend_private_data(user, result, NULL,
1514                                      my_methods, PDB_CHANGED);
1515         talloc_autofree_ldapmsg(user, result);
1516         return NT_STATUS_OK;
1517 }
1518
1519 /********************************************************************
1520  Do the actual modification - also change a plaintext passord if
1521  it it set.
1522 **********************************************************************/
1523
1524 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1525                                      struct samu *newpwd, char *dn,
1526                                      LDAPMod **mods, int ldap_op,
1527                                      BOOL (*need_update)(const struct samu *, enum pdb_elements))
1528 {
1529         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1530         int rc;
1531
1532         if (!newpwd || !dn) {
1533                 return NT_STATUS_INVALID_PARAMETER;
1534         }
1535
1536         if (!mods) {
1537                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1538                 /* may be password change below however */
1539         } else {
1540                 switch(ldap_op) {
1541                         case LDAP_MOD_ADD:
1542                                 if (ldap_state->is_nds_ldap) {
1543                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1544                                                         "objectclass",
1545                                                         "inetOrgPerson");
1546                                 } else {
1547                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1548                                                         "objectclass",
1549                                                         LDAP_OBJ_ACCOUNT);
1550                                 }
1551                                 rc = smbldap_add(ldap_state->smbldap_state,
1552                                                  dn, mods);
1553                                 break;
1554                         case LDAP_MOD_REPLACE:
1555                                 rc = smbldap_modify(ldap_state->smbldap_state,
1556                                                     dn ,mods);
1557                                 break;
1558                         default:
1559                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1560                                          ldap_op));
1561                                 return NT_STATUS_INVALID_PARAMETER;
1562                 }
1563
1564                 if (rc!=LDAP_SUCCESS) {
1565                         return NT_STATUS_UNSUCCESSFUL;
1566                 }
1567         }
1568
1569         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1570                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1571                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1572                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1573                 BerElement *ber;
1574                 struct berval *bv;
1575                 char *retoid = NULL;
1576                 struct berval *retdata = NULL;
1577                 char *utf8_password;
1578                 char *utf8_dn;
1579
1580                 if (!ldap_state->is_nds_ldap) {
1581
1582                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1583                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1584                                 DEBUG(2, ("ldap password change requested, but LDAP "
1585                                           "server does not support it -- ignoring\n"));
1586                                 return NT_STATUS_OK;
1587                         }
1588                 }
1589
1590                 if (push_utf8_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
1591                         return NT_STATUS_NO_MEMORY;
1592                 }
1593
1594                 if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
1595                         return NT_STATUS_NO_MEMORY;
1596                 }
1597
1598                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1599                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1600                         SAFE_FREE(utf8_password);
1601                         return NT_STATUS_UNSUCCESSFUL;
1602                 }
1603
1604                 ber_printf (ber, "{");
1605                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn);
1606                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password);
1607                 ber_printf (ber, "N}");
1608
1609                 if ((rc = ber_flatten (ber, &bv))<0) {
1610                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1611                         ber_free(ber,1);
1612                         SAFE_FREE(utf8_dn);
1613                         SAFE_FREE(utf8_password);
1614                         return NT_STATUS_UNSUCCESSFUL;
1615                 }
1616
1617                 SAFE_FREE(utf8_dn);
1618                 SAFE_FREE(utf8_password);
1619                 ber_free(ber, 1);
1620
1621                 if (!ldap_state->is_nds_ldap) {
1622                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1623                                                         LDAP_EXOP_MODIFY_PASSWD,
1624                                                         bv, NULL, NULL, &retoid,
1625                                                         &retdata);
1626                 } else {
1627                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1628                                                         pdb_get_plaintext_passwd(newpwd));
1629                 }
1630                 if (rc != LDAP_SUCCESS) {
1631                         char *ld_error = NULL;
1632
1633                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1634                                 DEBUG(3, ("Could not set userPassword "
1635                                           "attribute due to an objectClass "
1636                                           "violation -- ignoring\n"));
1637                                 ber_bvfree(bv);
1638                                 return NT_STATUS_OK;
1639                         }
1640
1641                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1642                                         &ld_error);
1643                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1644                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1645                         SAFE_FREE(ld_error);
1646                         ber_bvfree(bv);
1647                         return NT_STATUS_UNSUCCESSFUL;
1648                 } else {
1649                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1650 #ifdef DEBUG_PASSWORD
1651                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1652 #endif
1653                         if (retdata)
1654                                 ber_bvfree(retdata);
1655                         if (retoid)
1656                                 ldap_memfree(retoid);
1657                 }
1658                 ber_bvfree(bv);
1659         }
1660         return NT_STATUS_OK;
1661 }
1662
1663 /**********************************************************************
1664  Delete entry from LDAP for username.
1665 *********************************************************************/
1666
1667 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1668                                            struct samu * sam_acct)
1669 {
1670         struct ldapsam_privates *priv =
1671                 (struct ldapsam_privates *)my_methods->private_data;
1672         const char *sname;
1673         int rc;
1674         LDAPMessage *msg, *entry;
1675         NTSTATUS result = NT_STATUS_NO_MEMORY;
1676         const char **attr_list;
1677         TALLOC_CTX *mem_ctx;
1678
1679         if (!sam_acct) {
1680                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1681                 return NT_STATUS_INVALID_PARAMETER;
1682         }
1683
1684         sname = pdb_get_username(sam_acct);
1685
1686         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1687                   "LDAP.\n", sname));
1688
1689         mem_ctx = talloc_new(NULL);
1690         if (mem_ctx == NULL) {
1691                 DEBUG(0, ("talloc_new failed\n"));
1692                 goto done;
1693         }
1694
1695         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1696         if (attr_list == NULL) {
1697                 goto done;
1698         }
1699
1700         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1701
1702         if ((rc != LDAP_SUCCESS) ||
1703             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1704             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1705                 DEBUG(5, ("Could not find user %s\n", sname));
1706                 result = NT_STATUS_NO_SUCH_USER;
1707                 goto done;
1708         }
1709
1710         rc = ldapsam_delete_entry(
1711                 priv, mem_ctx, entry,
1712                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1713                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1714                 attr_list);
1715
1716         result = (rc == LDAP_SUCCESS) ?
1717                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1718
1719  done:
1720         TALLOC_FREE(mem_ctx);
1721         return result;
1722 }
1723
1724 /**********************************************************************
1725  Helper function to determine for update_sam_account whether
1726  we need LDAP modification.
1727 *********************************************************************/
1728
1729 static BOOL element_is_changed(const struct samu *sampass,
1730                                enum pdb_elements element)
1731 {
1732         return IS_SAM_CHANGED(sampass, element);
1733 }
1734
1735 /**********************************************************************
1736  Update struct samu.
1737 *********************************************************************/
1738
1739 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1740 {
1741         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1742         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1743         int rc = 0;
1744         char *dn;
1745         LDAPMessage *result = NULL;
1746         LDAPMessage *entry = NULL;
1747         LDAPMod **mods = NULL;
1748         const char **attr_list;
1749
1750         result = pdb_get_backend_private_data(newpwd, my_methods);
1751         if (!result) {
1752                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1753                 if (pdb_get_username(newpwd) == NULL) {
1754                         return NT_STATUS_INVALID_PARAMETER;
1755                 }
1756                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1757                 TALLOC_FREE( attr_list );
1758                 if (rc != LDAP_SUCCESS) {
1759                         return NT_STATUS_UNSUCCESSFUL;
1760                 }
1761                 pdb_set_backend_private_data(newpwd, result, NULL,
1762                                              my_methods, PDB_CHANGED);
1763                 talloc_autofree_ldapmsg(newpwd, result);
1764         }
1765
1766         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1767                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1768                 return NT_STATUS_UNSUCCESSFUL;
1769         }
1770
1771         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1772         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
1773         if (!dn) {
1774                 return NT_STATUS_UNSUCCESSFUL;
1775         }
1776
1777         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1778
1779         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
1780                                 element_is_changed)) {
1781                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
1782                 SAFE_FREE(dn);
1783                 if (mods != NULL)
1784                         ldap_mods_free(mods,True);
1785                 return NT_STATUS_UNSUCCESSFUL;
1786         }
1787
1788         if (mods == NULL) {
1789                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
1790                          pdb_get_username(newpwd)));
1791                 SAFE_FREE(dn);
1792                 return NT_STATUS_OK;
1793         }
1794
1795         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
1796         ldap_mods_free(mods,True);
1797         SAFE_FREE(dn);
1798
1799         if (!NT_STATUS_IS_OK(ret)) {
1800                 return ret;
1801         }
1802
1803         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1804                   pdb_get_username(newpwd)));
1805         return NT_STATUS_OK;
1806 }
1807
1808 /***************************************************************************
1809  Renames a struct samu
1810  - The "rename user script" has full responsibility for changing everything
1811 ***************************************************************************/
1812
1813 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
1814                                            struct samu *old_acct,
1815                                            const char *newname)
1816 {
1817         const char *oldname;
1818         int rc;
1819         pstring rename_script;
1820
1821         if (!old_acct) {
1822                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
1823                 return NT_STATUS_INVALID_PARAMETER;
1824         }
1825         if (!newname) {
1826                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
1827                 return NT_STATUS_INVALID_PARAMETER;
1828         }
1829
1830         oldname = pdb_get_username(old_acct);
1831
1832         /* rename the posix user */
1833         pstrcpy(rename_script, lp_renameuser_script());
1834
1835         if (!(*rename_script))
1836                 return NT_STATUS_ACCESS_DENIED;
1837
1838         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
1839                    oldname, newname));
1840
1841         /* we have to allow the account name to end with a '$' */
1842         string_sub2(rename_script, "%unew", newname, sizeof(pstring),
1843                     True, False, True);
1844         string_sub2(rename_script, "%uold", oldname, sizeof(pstring),
1845                     True, False, True);
1846         rc = smbrun(rename_script, NULL);
1847
1848         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
1849                           rename_script, rc));
1850
1851         if (rc)
1852                 return NT_STATUS_UNSUCCESSFUL;
1853
1854         return NT_STATUS_OK;
1855 }
1856
1857 /**********************************************************************
1858  Helper function to determine for update_sam_account whether
1859  we need LDAP modification.
1860  *********************************************************************/
1861
1862 static BOOL element_is_set_or_changed(const struct samu *sampass,
1863                                       enum pdb_elements element)
1864 {
1865         return (IS_SAM_SET(sampass, element) ||
1866                 IS_SAM_CHANGED(sampass, element));
1867 }
1868
1869 /**********************************************************************
1870  Add struct samu to LDAP.
1871 *********************************************************************/
1872
1873 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1874 {
1875         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1876         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1877         int rc;
1878         LDAPMessage     *result = NULL;
1879         LDAPMessage     *entry  = NULL;
1880         pstring         dn;
1881         LDAPMod         **mods = NULL;
1882         int             ldap_op = LDAP_MOD_REPLACE;
1883         uint32          num_result;
1884         const char      **attr_list;
1885         char            *escape_user;
1886         const char      *username = pdb_get_username(newpwd);
1887         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
1888         pstring         filter;
1889         fstring         sid_string;
1890
1891         if (!username || !*username) {
1892                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
1893                 return NT_STATUS_INVALID_PARAMETER;
1894         }
1895
1896         /* free this list after the second search or in case we exit on failure */
1897         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1898
1899         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
1900
1901         if (rc != LDAP_SUCCESS) {
1902                 TALLOC_FREE( attr_list );
1903                 return NT_STATUS_UNSUCCESSFUL;
1904         }
1905
1906         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1907                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
1908                          username));
1909                 ldap_msgfree(result);
1910                 TALLOC_FREE( attr_list );
1911                 return NT_STATUS_UNSUCCESSFUL;
1912         }
1913         ldap_msgfree(result);
1914         result = NULL;
1915
1916         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
1917                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1918                                                   sid, &result);
1919                 if (rc == LDAP_SUCCESS) {
1920                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1921                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' already in the base, with samba attributes\n",
1922                                          sid_to_string(sid_string, sid)));
1923                                 TALLOC_FREE( attr_list );
1924                                 ldap_msgfree(result);
1925                                 return NT_STATUS_UNSUCCESSFUL;
1926                         }
1927                         ldap_msgfree(result);
1928                 }
1929         }
1930
1931         /* does the entry already exist but without a samba attributes?
1932            we need to return the samba attributes here */
1933
1934         escape_user = escape_ldap_string_alloc( username );
1935         pstrcpy( filter, "(uid=%u)" );
1936         all_string_sub( filter, "%u", escape_user, sizeof(filter) );
1937         SAFE_FREE( escape_user );
1938
1939         rc = smbldap_search_suffix(ldap_state->smbldap_state,
1940                                    filter, attr_list, &result);
1941         if ( rc != LDAP_SUCCESS ) {
1942                 TALLOC_FREE( attr_list );
1943                 return NT_STATUS_UNSUCCESSFUL;
1944         }
1945
1946         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1947
1948         if (num_result > 1) {
1949                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
1950                 TALLOC_FREE( attr_list );
1951                 ldap_msgfree(result);
1952                 return NT_STATUS_UNSUCCESSFUL;
1953         }
1954
1955         /* Check if we need to update an existing entry */
1956         if (num_result == 1) {
1957                 char *tmp;
1958
1959                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
1960                 ldap_op = LDAP_MOD_REPLACE;
1961                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
1962                 tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
1963                 if (!tmp) {
1964                         TALLOC_FREE( attr_list );
1965                         ldap_msgfree(result);
1966                         return NT_STATUS_UNSUCCESSFUL;
1967                 }
1968                 slprintf (dn, sizeof (dn) - 1, "%s", tmp);
1969                 SAFE_FREE(tmp);
1970
1971         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
1972
1973                 /* There might be a SID for this account already - say an idmap entry */
1974
1975                 pstr_sprintf(filter, "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
1976                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1977                          sid_to_string(sid_string, sid),
1978                          LDAP_OBJ_IDMAP_ENTRY,
1979                          LDAP_OBJ_SID_ENTRY);
1980
1981                 /* free old result before doing a new search */
1982                 if (result != NULL) {
1983                         ldap_msgfree(result);
1984                         result = NULL;
1985                 }
1986                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
1987                                            filter, attr_list, &result);
1988
1989                 if ( rc != LDAP_SUCCESS ) {
1990                         TALLOC_FREE( attr_list );
1991                         return NT_STATUS_UNSUCCESSFUL;
1992                 }
1993
1994                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1995
1996                 if (num_result > 1) {
1997                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
1998                         TALLOC_FREE( attr_list );
1999                         ldap_msgfree(result);
2000                         return NT_STATUS_UNSUCCESSFUL;
2001                 }
2002
2003                 /* Check if we need to update an existing entry */
2004                 if (num_result == 1) {
2005                         char *tmp;
2006
2007                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2008                         ldap_op = LDAP_MOD_REPLACE;
2009                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2010                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2011                         if (!tmp) {
2012                                 TALLOC_FREE( attr_list );
2013                                 ldap_msgfree(result);
2014                                 return NT_STATUS_UNSUCCESSFUL;
2015                         }
2016                         slprintf (dn, sizeof (dn) - 1, "%s", tmp);
2017                         SAFE_FREE(tmp);
2018                 }
2019         }
2020
2021         TALLOC_FREE( attr_list );
2022
2023         if (num_result == 0) {
2024                 /* Check if we need to add an entry */
2025                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2026                 ldap_op = LDAP_MOD_ADD;
2027                 if (username[strlen(username)-1] == '$') {
2028                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_machine_suffix ());
2029                 } else {
2030                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_user_suffix ());
2031                 }
2032         }
2033
2034         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2035                                 element_is_set_or_changed)) {
2036                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2037                 ldap_msgfree(result);
2038                 if (mods != NULL)
2039                         ldap_mods_free(mods,True);
2040                 return NT_STATUS_UNSUCCESSFUL;
2041         }
2042
2043         ldap_msgfree(result);
2044
2045         if (mods == NULL) {
2046                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2047                 return NT_STATUS_UNSUCCESSFUL;
2048         }
2049         switch ( ldap_state->schema_ver ) {
2050                 case SCHEMAVER_SAMBAACCOUNT:
2051                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2052                         break;
2053                 case SCHEMAVER_SAMBASAMACCOUNT:
2054                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2055                         break;
2056                 default:
2057                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2058                         break;
2059         }
2060
2061         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2062         if (!NT_STATUS_IS_OK(ret)) {
2063                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2064                          pdb_get_username(newpwd),dn));
2065                 ldap_mods_free(mods, True);
2066                 return ret;
2067         }
2068
2069         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2070         ldap_mods_free(mods, True);
2071
2072         return NT_STATUS_OK;
2073 }
2074
2075 /**********************************************************************
2076  *********************************************************************/
2077
2078 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2079                                      const char *filter,
2080                                      LDAPMessage ** result)
2081 {
2082         int scope = LDAP_SCOPE_SUBTREE;
2083         int rc;
2084         const char **attr_list;
2085
2086         attr_list = get_attr_list(NULL, groupmap_attr_list);
2087         rc = smbldap_search(ldap_state->smbldap_state,
2088                             lp_ldap_group_suffix (), scope,
2089                             filter, attr_list, 0, result);
2090         TALLOC_FREE(attr_list);
2091
2092         return rc;
2093 }
2094
2095 /**********************************************************************
2096  *********************************************************************/
2097
2098 static BOOL init_group_from_ldap(struct ldapsam_privates *ldap_state,
2099                                  GROUP_MAP *map, LDAPMessage *entry)
2100 {
2101         pstring temp;
2102
2103         if (ldap_state == NULL || map == NULL || entry == NULL ||
2104                         ldap_state->smbldap_state->ldap_struct == NULL) {
2105                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2106                 return False;
2107         }
2108
2109         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2110                         get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER), temp)) {
2111                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2112                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2113                 return False;
2114         }
2115         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2116
2117         map->gid = (gid_t)atol(temp);
2118
2119         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2120                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID), temp)) {
2121                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2122                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2123                 return False;
2124         }
2125
2126         if (!string_to_sid(&map->sid, temp)) {
2127                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2128                 return False;
2129         }
2130
2131         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2132                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE), temp)) {
2133                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2134                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2135                 return False;
2136         }
2137         map->sid_name_use = (enum SID_NAME_USE)atol(temp);
2138
2139         if ((map->sid_name_use < SID_NAME_USER) ||
2140                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2141                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2142                 return False;
2143         }
2144
2145         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2146                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), temp)) {
2147                 temp[0] = '\0';
2148                 if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2149                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_CN), temp))
2150                 {
2151                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2152 for gidNumber(%lu)\n",(unsigned long)map->gid));
2153                         return False;
2154                 }
2155         }
2156         fstrcpy(map->nt_name, temp);
2157
2158         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2159                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DESC), temp)) {
2160                 temp[0] = '\0';
2161         }
2162         fstrcpy(map->comment, temp);
2163
2164         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
2165                 store_gid_sid_cache(&map->sid, map->gid);
2166         }
2167
2168         return True;
2169 }
2170
2171 /**********************************************************************
2172  *********************************************************************/
2173
2174 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2175                                  const char *filter,
2176                                  GROUP_MAP *map)
2177 {
2178         struct ldapsam_privates *ldap_state =
2179                 (struct ldapsam_privates *)methods->private_data;
2180         LDAPMessage *result = NULL;
2181         LDAPMessage *entry = NULL;
2182         int count;
2183
2184         if (ldapsam_search_one_group(ldap_state, filter, &result)
2185             != LDAP_SUCCESS) {
2186                 return NT_STATUS_NO_SUCH_GROUP;
2187         }
2188
2189         count = ldap_count_entries(priv2ld(ldap_state), result);
2190
2191         if (count < 1) {
2192                 DEBUG(4, ("ldapsam_getgroup: Did not find group\n"));
2193                 ldap_msgfree(result);
2194                 return NT_STATUS_NO_SUCH_GROUP;
2195         }
2196
2197         if (count > 1) {
2198                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2199                           "count=%d\n", filter, count));
2200                 ldap_msgfree(result);
2201                 return NT_STATUS_NO_SUCH_GROUP;
2202         }
2203
2204         entry = ldap_first_entry(priv2ld(ldap_state), result);
2205
2206         if (!entry) {
2207                 ldap_msgfree(result);
2208                 return NT_STATUS_UNSUCCESSFUL;
2209         }
2210
2211         if (!init_group_from_ldap(ldap_state, map, entry)) {
2212                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2213                           "group filter %s\n", filter));
2214                 ldap_msgfree(result);
2215                 return NT_STATUS_NO_SUCH_GROUP;
2216         }
2217
2218         ldap_msgfree(result);
2219         return NT_STATUS_OK;
2220 }
2221
2222 /**********************************************************************
2223  *********************************************************************/
2224
2225 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2226                                  DOM_SID sid)
2227 {
2228         pstring filter;
2229
2230         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
2231                 LDAP_OBJ_GROUPMAP,
2232                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2233                 sid_string_static(&sid));
2234
2235         return ldapsam_getgroup(methods, filter, map);
2236 }
2237
2238 /**********************************************************************
2239  *********************************************************************/
2240
2241 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2242                                  gid_t gid)
2243 {
2244         pstring filter;
2245
2246         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%lu))",
2247                 LDAP_OBJ_GROUPMAP,
2248                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2249                 (unsigned long)gid);
2250
2251         return ldapsam_getgroup(methods, filter, map);
2252 }
2253
2254 /**********************************************************************
2255  *********************************************************************/
2256
2257 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2258                                  const char *name)
2259 {
2260         pstring filter;
2261         char *escape_name = escape_ldap_string_alloc(name);
2262
2263         if (!escape_name) {
2264                 return NT_STATUS_NO_MEMORY;
2265         }
2266
2267         pstr_sprintf(filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2268                 LDAP_OBJ_GROUPMAP,
2269                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2270                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN), escape_name);
2271
2272         SAFE_FREE(escape_name);
2273
2274         return ldapsam_getgroup(methods, filter, map);
2275 }
2276
2277 static BOOL ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2278                                            LDAPMessage *entry,
2279                                            const DOM_SID *domain_sid,
2280                                            uint32 *rid)
2281 {
2282         fstring str;
2283         DOM_SID sid;
2284
2285         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2286                                           str, sizeof(str)-1)) {
2287                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2288                 return False;
2289         }
2290
2291         if (!string_to_sid(&sid, str)) {
2292                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2293                 return False;
2294         }
2295
2296         if (sid_compare_domain(&sid, domain_sid) != 0) {
2297                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2298                            str, sid_string_static(domain_sid)));
2299                 return False;
2300         }
2301
2302         if (!sid_peek_rid(&sid, rid)) {
2303                 DEBUG(10, ("Could not peek into RID\n"));
2304                 return False;
2305         }
2306
2307         return True;
2308 }
2309
2310 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2311                                            TALLOC_CTX *mem_ctx,
2312                                            const DOM_SID *group,
2313                                            uint32 **pp_member_rids,
2314                                            size_t *p_num_members)
2315 {
2316         struct ldapsam_privates *ldap_state =
2317                 (struct ldapsam_privates *)methods->private_data;
2318         struct smbldap_state *conn = ldap_state->smbldap_state;
2319         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2320         const char *sid_attrs[] = { "sambaSID", NULL };
2321         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2322         LDAPMessage *result = NULL;
2323         LDAPMessage *entry;
2324         char *filter;
2325         char **values = NULL;
2326         char **memberuid;
2327         char *gidstr;
2328         int rc, count;
2329
2330         *pp_member_rids = NULL;
2331         *p_num_members = 0;
2332
2333         filter = talloc_asprintf(mem_ctx,
2334                                  "(&(objectClass=%s)"
2335                                  "(objectClass=%s)"
2336                                  "(sambaSID=%s))",
2337                                  LDAP_OBJ_POSIXGROUP,
2338                                  LDAP_OBJ_GROUPMAP,
2339                                  sid_string_static(group));
2340         if (filter == NULL) {
2341                 ret = NT_STATUS_NO_MEMORY;
2342                 goto done;
2343         }
2344
2345         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2346                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2347                             &result);
2348
2349         if (rc != LDAP_SUCCESS)
2350                 goto done;
2351
2352         talloc_autofree_ldapmsg(mem_ctx, result);
2353
2354         count = ldap_count_entries(conn->ldap_struct, result);
2355
2356         if (count > 1) {
2357                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2358                           sid_string_static(group)));
2359                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2360                 goto done;
2361         }
2362
2363         if (count == 0) {
2364                 ret = NT_STATUS_NO_SUCH_GROUP;
2365                 goto done;
2366         }
2367
2368         entry = ldap_first_entry(conn->ldap_struct, result);
2369         if (entry == NULL)
2370                 goto done;
2371
2372         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2373         if (!gidstr) {
2374                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2375                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2376                 goto done;
2377         }
2378
2379         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2380
2381         if (values) {
2382
2383                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBAACCOUNT);
2384                 if (filter == NULL) {
2385                         ret = NT_STATUS_NO_MEMORY;
2386                         goto done;
2387                 }
2388
2389                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2390                         filter = talloc_asprintf_append(filter, "(uid=%s)", *memberuid);
2391                         if (filter == NULL) {
2392                                 ret = NT_STATUS_NO_MEMORY;
2393                                 goto done;
2394                         }
2395                 }
2396
2397                 filter = talloc_asprintf_append(filter, "))");
2398                 if (filter == NULL) {
2399                         ret = NT_STATUS_NO_MEMORY;
2400                         goto done;
2401                 }
2402
2403                 rc = smbldap_search(conn, lp_ldap_user_suffix(),
2404                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2405                                     &result);
2406
2407                 if (rc != LDAP_SUCCESS)
2408                         goto done;
2409
2410                 count = ldap_count_entries(conn->ldap_struct, result);
2411                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2412
2413                 talloc_autofree_ldapmsg(mem_ctx, result);
2414
2415                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2416                      entry != NULL;
2417                      entry = ldap_next_entry(conn->ldap_struct, entry))
2418                 {
2419                         char *sidstr;
2420                         DOM_SID sid;
2421                         uint32 rid;
2422
2423                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2424                                                                  entry, "sambaSID",
2425                                                                  mem_ctx);
2426                         if (!sidstr) {
2427                                 DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2428                                           "the sambaSID attribute\n"));
2429                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2430                                 goto done;
2431                         }
2432
2433                         if (!string_to_sid(&sid, sidstr))
2434                                 goto done;
2435
2436                         if (!sid_check_is_in_our_domain(&sid)) {
2437                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2438                                           "in our domain\n"));
2439                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2440                                 goto done;
2441                         }
2442
2443                         sid_peek_rid(&sid, &rid);
2444
2445                         add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2446                                                 p_num_members);
2447                 }
2448         }
2449
2450         filter = talloc_asprintf(mem_ctx,
2451                                  "(&(objectClass=%s)"
2452                                  "(gidNumber=%s))",
2453                                  LDAP_OBJ_SAMBASAMACCOUNT,
2454                                  gidstr);
2455
2456         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2457                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2458                             &result);
2459
2460         if (rc != LDAP_SUCCESS)
2461                 goto done;
2462
2463         talloc_autofree_ldapmsg(mem_ctx, result);
2464
2465         for (entry = ldap_first_entry(conn->ldap_struct, result);
2466              entry != NULL;
2467              entry = ldap_next_entry(conn->ldap_struct, entry))
2468         {
2469                 uint32 rid;
2470
2471                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2472                                                     entry,
2473                                                     get_global_sam_sid(),
2474                                                     &rid)) {
2475                         DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2476                                   "the sambaSID attribute\n"));
2477                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2478                         goto done;
2479                 }
2480
2481                 add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2482                                         p_num_members);
2483         }
2484
2485         ret = NT_STATUS_OK;
2486
2487  done:
2488
2489         if (values)
2490                 ldap_value_free(values);
2491
2492         return ret;
2493 }
2494
2495 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2496                                                TALLOC_CTX *mem_ctx,
2497                                                struct samu *user,
2498                                                DOM_SID **pp_sids,
2499                                                gid_t **pp_gids,
2500                                                size_t *p_num_groups)
2501 {
2502         struct ldapsam_privates *ldap_state =
2503                 (struct ldapsam_privates *)methods->private_data;
2504         struct smbldap_state *conn = ldap_state->smbldap_state;
2505         char *filter;
2506         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2507         char *escape_name;
2508         int rc, count;
2509         LDAPMessage *result = NULL;
2510         LDAPMessage *entry;
2511         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2512         size_t num_sids, num_gids;
2513         char *gidstr;
2514         gid_t primary_gid = -1;
2515
2516         *pp_sids = NULL;
2517         num_sids = 0;
2518
2519         if (pdb_get_username(user) == NULL) {
2520                 return NT_STATUS_INVALID_PARAMETER;
2521         }
2522
2523         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2524         if (escape_name == NULL)
2525                 return NT_STATUS_NO_MEMORY;
2526
2527         /* retrieve the users primary gid */
2528         filter = talloc_asprintf(mem_ctx,
2529                                  "(&(objectClass=%s)(uid=%s))",
2530                                  LDAP_OBJ_SAMBASAMACCOUNT,
2531                                  escape_name);
2532         if (filter == NULL) {
2533                 ret = NT_STATUS_NO_MEMORY;
2534                 goto done;
2535         }
2536
2537         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2538                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2539
2540         if (rc != LDAP_SUCCESS)
2541                 goto done;
2542
2543         talloc_autofree_ldapmsg(mem_ctx, result);
2544
2545         count = ldap_count_entries(priv2ld(ldap_state), result);
2546
2547         switch (count) {
2548         case 0:
2549                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2550                 ret = NT_STATUS_NO_SUCH_USER;
2551                 goto done;
2552         case 1:
2553                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2554
2555                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2556                 if (!gidstr) {
2557                         DEBUG (1, ("Unable to find the member's gid!\n"));
2558                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2559                         goto done;
2560                 }
2561                 primary_gid = strtoul(gidstr, NULL, 10);
2562                 break;
2563         default:
2564                 DEBUG(1, ("found more than one accoutn with the same user name ?!\n"));
2565                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2566                 goto done;
2567         }
2568
2569         filter = talloc_asprintf(mem_ctx,
2570                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2571                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2572         if (filter == NULL) {
2573                 ret = NT_STATUS_NO_MEMORY;
2574                 goto done;
2575         }
2576
2577         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2578                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2579
2580         if (rc != LDAP_SUCCESS)
2581                 goto done;
2582
2583         talloc_autofree_ldapmsg(mem_ctx, result);
2584
2585         num_gids = 0;
2586         *pp_gids = NULL;
2587
2588         num_sids = 0;
2589         *pp_sids = NULL;
2590
2591         /* We need to add the primary group as the first gid/sid */
2592
2593         add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids);
2594
2595         /* This sid will be replaced later */
2596
2597         add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids);
2598
2599         for (entry = ldap_first_entry(conn->ldap_struct, result);
2600              entry != NULL;
2601              entry = ldap_next_entry(conn->ldap_struct, entry))
2602         {
2603                 fstring str;
2604                 DOM_SID sid;
2605                 gid_t gid;
2606                 char *end;
2607
2608                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2609                                                   entry, "sambaSID",
2610                                                   str, sizeof(str)-1))
2611                         continue;
2612
2613                 if (!string_to_sid(&sid, str))
2614                         goto done;
2615
2616                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2617                                                   entry, "gidNumber",
2618                                                   str, sizeof(str)-1))
2619                         continue;
2620
2621                 gid = strtoul(str, &end, 10);
2622
2623                 if (PTR_DIFF(end, str) != strlen(str))
2624                         goto done;
2625
2626                 if (gid == primary_gid) {
2627                         sid_copy(&(*pp_sids)[0], &sid);
2628                 } else {
2629                         add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2630                                                 &num_gids);
2631                         add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2632                                                 &num_sids);
2633                 }
2634         }
2635
2636         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2637                 DEBUG(3, ("primary group of [%s] not found\n",
2638                           pdb_get_username(user)));
2639                 goto done;
2640         }
2641
2642         *p_num_groups = num_sids;
2643
2644         ret = NT_STATUS_OK;
2645
2646  done:
2647
2648         SAFE_FREE(escape_name);
2649         return ret;
2650 }
2651
2652 /**********************************************************************
2653  * Augment a posixGroup object with a sambaGroupMapping domgroup
2654  *********************************************************************/
2655
2656 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2657                                        struct ldapsam_privates *ldap_state,
2658                                        GROUP_MAP *map)
2659 {
2660         const char *filter, *dn;
2661         LDAPMessage *msg, *entry;
2662         LDAPMod **mods;
2663         int rc;
2664
2665         filter = talloc_asprintf(mem_ctx,
2666                                  "(&(objectClass=posixGroup)(gidNumber=%u))",
2667                                  map->gid);
2668         if (filter == NULL) {
2669                 return NT_STATUS_NO_MEMORY;
2670         }
2671
2672         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2673                                    get_attr_list(mem_ctx, groupmap_attr_list),
2674                                    &msg);
2675         talloc_autofree_ldapmsg(mem_ctx, msg);
2676
2677         if ((rc != LDAP_SUCCESS) ||
2678             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2679             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2680                 return NT_STATUS_NO_SUCH_GROUP;
2681         }
2682
2683         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2684         if (dn == NULL) {
2685                 return NT_STATUS_NO_MEMORY;
2686         }
2687
2688         mods = NULL;
2689         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
2690                         "sambaGroupMapping");
2691         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
2692                          sid_string_static(&map->sid));
2693         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
2694                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2695         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2696                          map->nt_name);
2697         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2698                          map->comment);
2699         talloc_autofree_ldapmod(mem_ctx, mods);
2700
2701         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2702         if (rc != LDAP_SUCCESS) {
2703                 return NT_STATUS_ACCESS_DENIED;
2704         }
2705
2706         return NT_STATUS_OK;
2707 }
2708
2709 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
2710                                                 GROUP_MAP *map)
2711 {
2712         struct ldapsam_privates *ldap_state =
2713                 (struct ldapsam_privates *)methods->private_data;
2714         LDAPMessage *msg = NULL;
2715         LDAPMod **mods = NULL;
2716         const char *attrs[] = { NULL };
2717         char *filter;
2718
2719         char *dn;
2720         TALLOC_CTX *mem_ctx;
2721         NTSTATUS result;
2722
2723         DOM_SID sid;
2724
2725         int rc;
2726
2727         mem_ctx = talloc_new(NULL);
2728         if (mem_ctx == NULL) {
2729                 DEBUG(0, ("talloc_new failed\n"));
2730                 return NT_STATUS_NO_MEMORY;
2731         }
2732
2733         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
2734                                  sid_string_static(&map->sid));
2735         if (filter == NULL) {
2736                 result = NT_STATUS_NO_MEMORY;
2737                 goto done;
2738         }
2739
2740         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
2741                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
2742         talloc_autofree_ldapmsg(mem_ctx, msg);
2743
2744         if ((rc == LDAP_SUCCESS) &&
2745             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
2746
2747                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
2748                           "group mapping entry\n",
2749                           sid_string_static(&map->sid)));
2750                 result = NT_STATUS_GROUP_EXISTS;
2751                 goto done;
2752         }
2753
2754         switch (map->sid_name_use) {
2755
2756         case SID_NAME_DOM_GRP:
2757                 /* To map a domain group we need to have a posix group
2758                    to attach to. */
2759                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
2760                 goto done;
2761                 break;
2762
2763         case SID_NAME_ALIAS:
2764                 if (!sid_check_is_in_our_domain(&map->sid)
2765                         && !sid_check_is_in_builtin(&map->sid) )
2766                 {
2767                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
2768                                   sid_string_static(&map->sid)));
2769                         result = NT_STATUS_INVALID_PARAMETER;
2770                         goto done;
2771                 }
2772                 break;
2773
2774         default:
2775                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
2776                           sid_type_lookup(map->sid_name_use)));
2777                 result = NT_STATUS_INVALID_PARAMETER;
2778                 goto done;
2779         }
2780
2781         /* Domain groups have been mapped in a separate routine, we have to
2782          * create an alias now */
2783
2784         if (map->gid == -1) {
2785                 DEBUG(10, ("Refusing to map gid==-1\n"));
2786                 result = NT_STATUS_INVALID_PARAMETER;
2787                 goto done;
2788         }
2789
2790         if (pdb_gid_to_sid(map->gid, &sid)) {
2791                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
2792                           "add\n", map->gid, sid_string_static(&sid)));
2793                 result = NT_STATUS_GROUP_EXISTS;
2794                 goto done;
2795         }
2796
2797         /* Ok, enough checks done. It's still racy to go ahead now, but that's
2798          * the best we can get out of LDAP. */
2799
2800         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
2801                              sid_string_static(&map->sid),
2802                              lp_ldap_group_suffix());
2803         if (dn == NULL) {
2804                 result = NT_STATUS_NO_MEMORY;
2805                 goto done;
2806         }
2807
2808         mods = NULL;
2809
2810         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2811                          "sambaSidEntry");
2812         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2813                          "sambaGroupMapping");
2814
2815         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
2816                          sid_string_static(&map->sid));
2817         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
2818                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2819         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
2820                          map->nt_name);
2821         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
2822                          map->comment);
2823         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
2824                          talloc_asprintf(mem_ctx, "%u", map->gid));
2825         talloc_autofree_ldapmod(mem_ctx, mods);
2826
2827         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
2828
2829         result = (rc == LDAP_SUCCESS) ?
2830                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
2831
2832  done:
2833         TALLOC_FREE(mem_ctx);
2834         return result;
2835 }
2836
2837 /**********************************************************************
2838  * Update a group mapping entry. We're quite strict about what can be changed:
2839  * Only the description and displayname may be changed. It simply does not
2840  * make any sense to change the SID, gid or the type in a mapping.
2841  *********************************************************************/
2842
2843 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
2844                                                    GROUP_MAP *map)
2845 {
2846         struct ldapsam_privates *ldap_state =
2847                 (struct ldapsam_privates *)methods->private_data;
2848         int rc;
2849         const char *filter, *dn;
2850         LDAPMessage *msg = NULL;
2851         LDAPMessage *entry = NULL;
2852         LDAPMod **mods = NULL;
2853         TALLOC_CTX *mem_ctx;
2854         NTSTATUS result;
2855
2856         mem_ctx = talloc_new(NULL);
2857         if (mem_ctx == NULL) {
2858                 DEBUG(0, ("talloc_new failed\n"));
2859                 return NT_STATUS_NO_MEMORY;
2860         }
2861
2862         /* Make 100% sure that sid, gid and type are not changed by looking up
2863          * exactly the values we're given in LDAP. */
2864
2865         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
2866                                  "(sambaSid=%s)(gidNumber=%u)"
2867                                  "(sambaGroupType=%d))",
2868                                  LDAP_OBJ_GROUPMAP,
2869                                  sid_string_static(&map->sid), map->gid,
2870                                  map->sid_name_use);
2871         if (filter == NULL) {
2872                 result = NT_STATUS_NO_MEMORY;
2873                 goto done;
2874         }
2875
2876         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2877                                    get_attr_list(mem_ctx, groupmap_attr_list),
2878                                    &msg);
2879         talloc_autofree_ldapmsg(mem_ctx, msg);
2880
2881         if ((rc != LDAP_SUCCESS) ||
2882             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2883             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2884                 result = NT_STATUS_NO_SUCH_GROUP;
2885                 goto done;
2886         }
2887
2888         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2889
2890         if (dn == NULL) {
2891                 result = NT_STATUS_NO_MEMORY;
2892                 goto done;
2893         }
2894
2895         mods = NULL;
2896         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2897                          map->nt_name);
2898         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2899                          map->comment);
2900         talloc_autofree_ldapmod(mem_ctx, mods);
2901
2902         if (mods == NULL) {
2903                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
2904                           "nothing to do\n"));
2905                 result = NT_STATUS_OK;
2906                 goto done;
2907         }
2908
2909         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2910
2911         if (rc != LDAP_SUCCESS) {
2912                 result = NT_STATUS_ACCESS_DENIED;
2913                 goto done;
2914         }
2915
2916         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
2917                   "group %lu in LDAP\n", (unsigned long)map->gid));
2918
2919         result = NT_STATUS_OK;
2920
2921  done:
2922         TALLOC_FREE(mem_ctx);
2923         return result;
2924 }
2925
2926 /**********************************************************************
2927  *********************************************************************/
2928
2929 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
2930                                                    DOM_SID sid)
2931 {
2932         struct ldapsam_privates *priv =
2933                 (struct ldapsam_privates *)methods->private_data;
2934         LDAPMessage *msg, *entry;
2935         int rc;
2936         NTSTATUS result;
2937         TALLOC_CTX *mem_ctx;
2938         char *filter;
2939
2940         mem_ctx = talloc_new(NULL);
2941         if (mem_ctx == NULL) {
2942                 DEBUG(0, ("talloc_new failed\n"));
2943                 return NT_STATUS_NO_MEMORY;
2944         }
2945
2946         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
2947                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
2948                                  sid_string_static(&sid));
2949         if (filter == NULL) {
2950                 result = NT_STATUS_NO_MEMORY;
2951                 goto done;
2952         }
2953         rc = smbldap_search_suffix(priv->smbldap_state, filter,
2954                                    get_attr_list(mem_ctx, groupmap_attr_list),
2955                                    &msg);
2956         talloc_autofree_ldapmsg(mem_ctx, msg);
2957
2958         if ((rc != LDAP_SUCCESS) ||
2959             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
2960             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
2961                 result = NT_STATUS_NO_SUCH_GROUP;
2962                 goto done;
2963         }
2964
2965         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
2966                                   get_attr_list(mem_ctx,
2967                                                 groupmap_attr_list_to_delete));
2968
2969         if ((rc == LDAP_NAMING_VIOLATION) ||
2970             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
2971                 const char *attrs[] = { "sambaGroupType", "description",
2972                                         "displayName", "sambaSIDList",
2973                                         NULL };
2974
2975                 /* Second try. Don't delete the sambaSID attribute, this is
2976                    for "old" entries that are tacked on a winbind
2977                    sambaIdmapEntry. */
2978
2979                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
2980                                           LDAP_OBJ_GROUPMAP, attrs);
2981         }
2982
2983         if ((rc == LDAP_NAMING_VIOLATION) ||
2984             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
2985                 const char *attrs[] = { "sambaGroupType", "description",
2986                                         "displayName", "sambaSIDList",
2987                                         "gidNumber", NULL };
2988
2989                 /* Third try. This is a post-3.0.21 alias (containing only
2990                  * sambaSidEntry and sambaGroupMapping classes), we also have
2991                  * to delete the gidNumber attribute, only the sambaSidEntry
2992                  * remains */
2993
2994                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
2995                                           LDAP_OBJ_GROUPMAP, attrs);
2996         }
2997
2998         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
2999
3000  done:
3001         TALLOC_FREE(mem_ctx);
3002         return result;
3003  }
3004
3005 /**********************************************************************
3006  *********************************************************************/
3007
3008 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3009                                     BOOL update)
3010 {
3011         struct ldapsam_privates *ldap_state =
3012                 (struct ldapsam_privates *)my_methods->private_data;
3013         fstring filter;
3014         int rc;
3015         const char **attr_list;
3016
3017         pstr_sprintf( filter, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3018         attr_list = get_attr_list( NULL, groupmap_attr_list );
3019         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3020                             LDAP_SCOPE_SUBTREE, filter,
3021                             attr_list, 0, &ldap_state->result);
3022         TALLOC_FREE(attr_list);
3023
3024         if (rc != LDAP_SUCCESS) {
3025                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3026                           ldap_err2string(rc)));
3027                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3028                           lp_ldap_group_suffix(), filter));
3029                 ldap_msgfree(ldap_state->result);
3030                 ldap_state->result = NULL;
3031                 return NT_STATUS_UNSUCCESSFUL;
3032         }
3033
3034         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3035                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3036                                      ldap_state->result)));
3037
3038         ldap_state->entry =
3039                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3040                                  ldap_state->result);
3041         ldap_state->index = 0;
3042
3043         return NT_STATUS_OK;
3044 }
3045
3046 /**********************************************************************
3047  *********************************************************************/
3048
3049 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3050 {
3051         ldapsam_endsampwent(my_methods);
3052 }
3053
3054 /**********************************************************************
3055  *********************************************************************/
3056
3057 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3058                                     GROUP_MAP *map)
3059 {
3060         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3061         struct ldapsam_privates *ldap_state =
3062                 (struct ldapsam_privates *)my_methods->private_data;
3063         BOOL bret = False;
3064
3065         while (!bret) {
3066                 if (!ldap_state->entry)
3067                         return ret;
3068
3069                 ldap_state->index++;
3070                 bret = init_group_from_ldap(ldap_state, map,
3071                                             ldap_state->entry);
3072
3073                 ldap_state->entry =
3074                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3075                                         ldap_state->entry);
3076         }
3077
3078         return NT_STATUS_OK;
3079 }
3080
3081 /**********************************************************************
3082  *********************************************************************/
3083
3084 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3085                                            const DOM_SID *domsid, enum SID_NAME_USE sid_name_use,
3086                                            GROUP_MAP **pp_rmap,
3087                                            size_t *p_num_entries,
3088                                            BOOL unix_only)
3089 {
3090         GROUP_MAP map;
3091         size_t entries = 0;
3092
3093         *p_num_entries = 0;
3094         *pp_rmap = NULL;
3095
3096         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3097                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3098                           "passdb\n"));
3099                 return NT_STATUS_ACCESS_DENIED;
3100         }
3101
3102         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3103                 if (sid_name_use != SID_NAME_UNKNOWN &&
3104                     sid_name_use != map.sid_name_use) {
3105                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3106                                   "not of the requested type\n", map.nt_name));
3107                         continue;
3108                 }
3109                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3110                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3111                                   "non mapped\n", map.nt_name));
3112                         continue;
3113                 }
3114
3115                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3116                 if (!(*pp_rmap)) {
3117                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3118                                  "enlarge group map!\n"));
3119                         return NT_STATUS_UNSUCCESSFUL;
3120                 }
3121
3122                 (*pp_rmap)[entries] = map;
3123
3124                 entries += 1;
3125
3126         }
3127         ldapsam_endsamgrent(methods);
3128
3129         *p_num_entries = entries;
3130
3131         return NT_STATUS_OK;
3132 }
3133
3134 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3135                                         const DOM_SID *alias,
3136                                         const DOM_SID *member,
3137                                         int modop)
3138 {
3139         struct ldapsam_privates *ldap_state =
3140                 (struct ldapsam_privates *)methods->private_data;
3141         char *dn;
3142         LDAPMessage *result = NULL;
3143         LDAPMessage *entry = NULL;
3144         int count;
3145         LDAPMod **mods = NULL;
3146         int rc;
3147         enum SID_NAME_USE type = SID_NAME_USE_NONE;
3148
3149         pstring filter;
3150
3151         if (sid_check_is_in_builtin(alias)) {
3152                 type = SID_NAME_ALIAS;
3153         }
3154
3155         if (sid_check_is_in_our_domain(alias)) {
3156                 type = SID_NAME_ALIAS;
3157         }
3158
3159         if (type == SID_NAME_USE_NONE) {
3160                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3161                           sid_string_static(alias)));
3162                 return NT_STATUS_NO_SUCH_ALIAS;
3163         }
3164
3165         pstr_sprintf(filter,
3166                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3167                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3168                      type);
3169
3170         if (ldapsam_search_one_group(ldap_state, filter,
3171                                      &result) != LDAP_SUCCESS)
3172                 return NT_STATUS_NO_SUCH_ALIAS;
3173
3174         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3175                                    result);
3176
3177         if (count < 1) {
3178                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3179                 ldap_msgfree(result);
3180                 return NT_STATUS_NO_SUCH_ALIAS;
3181         }
3182
3183         if (count > 1) {
3184                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3185                           "filter %s: count=%d\n", filter, count));
3186                 ldap_msgfree(result);
3187                 return NT_STATUS_NO_SUCH_ALIAS;
3188         }
3189
3190         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3191                                  result);
3192
3193         if (!entry) {
3194                 ldap_msgfree(result);
3195                 return NT_STATUS_UNSUCCESSFUL;
3196         }
3197
3198         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
3199         if (!dn) {
3200                 ldap_msgfree(result);
3201                 return NT_STATUS_UNSUCCESSFUL;
3202         }
3203
3204         smbldap_set_mod(&mods, modop,
3205                         get_attr_key2string(groupmap_attr_list,
3206                                             LDAP_ATTR_SID_LIST),
3207                         sid_string_static(member));
3208
3209         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3210
3211         ldap_mods_free(mods, True);
3212         ldap_msgfree(result);
3213         SAFE_FREE(dn);
3214
3215         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3216                 return NT_STATUS_MEMBER_IN_ALIAS;
3217         }
3218
3219         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3220                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3221         }
3222
3223         if (rc != LDAP_SUCCESS) {
3224                 return NT_STATUS_UNSUCCESSFUL;
3225         }
3226
3227         return NT_STATUS_OK;
3228 }
3229
3230 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3231                                      const DOM_SID *alias,
3232                                      const DOM_SID *member)
3233 {
3234         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3235 }
3236
3237 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3238                                      const DOM_SID *alias,
3239                                      const DOM_SID *member)
3240 {
3241         return ldapsam_modify_aliasmem(methods, alias, member,
3242                                        LDAP_MOD_DELETE);
3243 }
3244
3245 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3246                                       const DOM_SID *alias,
3247                                       DOM_SID **pp_members,
3248                                       size_t *p_num_members)
3249 {
3250         struct ldapsam_privates *ldap_state =
3251                 (struct ldapsam_privates *)methods->private_data;
3252         LDAPMessage *result = NULL;
3253         LDAPMessage *entry = NULL;
3254         int count;
3255         char **values;
3256         int i;
3257         pstring filter;
3258         size_t num_members = 0;
3259         enum SID_NAME_USE type = SID_NAME_USE_NONE;
3260
3261         *pp_members = NULL;
3262         *p_num_members = 0;
3263
3264         if (sid_check_is_in_builtin(alias)) {
3265                 type = SID_NAME_ALIAS;
3266         }
3267
3268         if (sid_check_is_in_our_domain(alias)) {
3269                 type = SID_NAME_ALIAS;
3270         }
3271
3272         if (type == SID_NAME_USE_NONE) {
3273                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3274                           sid_string_static(alias)));
3275                 return NT_STATUS_NO_SUCH_ALIAS;
3276         }
3277
3278         pstr_sprintf(filter,
3279                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3280                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3281                      type);
3282
3283         if (ldapsam_search_one_group(ldap_state, filter,
3284                                      &result) != LDAP_SUCCESS)
3285                 return NT_STATUS_NO_SUCH_ALIAS;
3286
3287         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3288                                    result);
3289
3290         if (count < 1) {
3291                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3292                 ldap_msgfree(result);
3293                 return NT_STATUS_NO_SUCH_ALIAS;
3294         }
3295
3296         if (count > 1) {
3297                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3298                           "filter %s: count=%d\n", filter, count));
3299                 ldap_msgfree(result);
3300                 return NT_STATUS_NO_SUCH_ALIAS;
3301         }
3302
3303         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3304                                  result);
3305
3306         if (!entry) {
3307                 ldap_msgfree(result);
3308                 return NT_STATUS_UNSUCCESSFUL;
3309         }
3310
3311         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3312                                  entry,
3313                                  get_attr_key2string(groupmap_attr_list,
3314                                                      LDAP_ATTR_SID_LIST));
3315
3316         if (values == NULL) {
3317                 ldap_msgfree(result);
3318                 return NT_STATUS_OK;
3319         }
3320
3321         count = ldap_count_values(values);
3322
3323         for (i=0; i<count; i++) {
3324                 DOM_SID member;
3325
3326                 if (!string_to_sid(&member, values[i]))
3327                         continue;
3328
3329                 add_sid_to_array(NULL, &member, pp_members, &num_members);
3330         }
3331
3332         *p_num_members = num_members;
3333         ldap_value_free(values);
3334         ldap_msgfree(result);
3335
3336         return NT_STATUS_OK;
3337 }
3338
3339 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3340                                           TALLOC_CTX *mem_ctx,
3341                                           const DOM_SID *domain_sid,
3342                                           const DOM_SID *members,
3343                                           size_t num_members,
3344                                           uint32 **pp_alias_rids,
3345                                           size_t *p_num_alias_rids)
3346 {
3347         struct ldapsam_privates *ldap_state =
3348                 (struct ldapsam_privates *)methods->private_data;
3349         LDAP *ldap_struct;
3350
3351         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3352
3353         LDAPMessage *result = NULL;
3354         LDAPMessage *entry = NULL;
3355         int i;
3356         int rc;
3357         char *filter;
3358         enum SID_NAME_USE type = SID_NAME_USE_NONE;
3359
3360         if (sid_check_is_builtin(domain_sid)) {
3361                 type = SID_NAME_ALIAS;
3362         }
3363
3364         if (sid_check_is_domain(domain_sid)) {
3365                 type = SID_NAME_ALIAS;
3366         }
3367
3368         if (type == SID_NAME_USE_NONE) {
3369                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3370                           sid_string_static(domain_sid)));
3371                 return NT_STATUS_UNSUCCESSFUL;
3372         }
3373
3374         filter = talloc_asprintf(mem_ctx,
3375                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3376                                  LDAP_OBJ_GROUPMAP, type);
3377
3378         for (i=0; i<num_members; i++)
3379                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3380                                          filter,
3381                                          sid_string_static(&members[i]));
3382
3383         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3384
3385         if (filter == NULL) {
3386                 return NT_STATUS_NO_MEMORY;
3387         }
3388
3389         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3390                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3391
3392         if (rc != LDAP_SUCCESS)
3393                 return NT_STATUS_UNSUCCESSFUL;
3394
3395         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3396
3397         for (entry = ldap_first_entry(ldap_struct, result);
3398              entry != NULL;
3399              entry = ldap_next_entry(ldap_struct, entry))
3400         {
3401                 fstring sid_str;
3402                 DOM_SID sid;
3403                 uint32 rid;
3404
3405                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3406                                                   LDAP_ATTRIBUTE_SID,
3407                                                   sid_str,
3408                                                   sizeof(sid_str)-1))
3409                         continue;
3410
3411                 if (!string_to_sid(&sid, sid_str))
3412                         continue;
3413
3414                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3415                         continue;
3416
3417                 add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3418                                         p_num_alias_rids);
3419         }
3420
3421         ldap_msgfree(result);
3422         return NT_STATUS_OK;
3423 }
3424
3425 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3426                                                    int policy_index,
3427                                                    uint32 value)
3428 {
3429         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3430         int rc;
3431         LDAPMod **mods = NULL;
3432         fstring value_string;
3433         const char *policy_attr = NULL;
3434
3435         struct ldapsam_privates *ldap_state =
3436                 (struct ldapsam_privates *)methods->private_data;
3437
3438         const char *attrs[2];
3439
3440         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3441
3442         if (!ldap_state->domain_dn) {
3443                 return NT_STATUS_INVALID_PARAMETER;
3444         }
3445
3446         policy_attr = get_account_policy_attr(policy_index);
3447         if (policy_attr == NULL) {
3448                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3449                          "policy\n"));
3450                 return ntstatus;
3451         }
3452
3453         attrs[0] = policy_attr;
3454         attrs[1] = NULL;
3455
3456         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3457
3458         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3459
3460         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3461                             mods);
3462
3463         ldap_mods_free(mods, True);
3464
3465         if (rc != LDAP_SUCCESS) {
3466                 return ntstatus;
3467         }
3468
3469         if (!cache_account_policy_set(policy_index, value)) {
3470                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3471                          "update local tdb cache\n"));
3472                 return ntstatus;
3473         }
3474
3475         return NT_STATUS_OK;
3476 }
3477
3478 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3479                                            int policy_index, uint32 value)
3480 {
3481         if (!account_policy_migrated(False)) {
3482                 return (account_policy_set(policy_index, value)) ?
3483                         NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3484         }
3485
3486         return ldapsam_set_account_policy_in_ldap(methods, policy_index,
3487                                                   value);
3488 }
3489
3490 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3491                                                      int policy_index,
3492                                                      uint32 *value)
3493 {
3494         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3495         LDAPMessage *result = NULL;
3496         LDAPMessage *entry = NULL;
3497         int count;
3498         int rc;
3499         char **vals = NULL;
3500         const char *policy_attr = NULL;
3501
3502         struct ldapsam_privates *ldap_state =
3503                 (struct ldapsam_privates *)methods->private_data;
3504
3505         const char *attrs[2];
3506
3507         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3508
3509         if (!ldap_state->domain_dn) {
3510                 return NT_STATUS_INVALID_PARAMETER;
3511         }
3512
3513         policy_attr = get_account_policy_attr(policy_index);
3514         if (!policy_attr) {
3515                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3516                          "policy index: %d\n", policy_index));
3517                 return ntstatus;
3518         }
3519
3520         attrs[0] = policy_attr;
3521         attrs[1] = NULL;
3522
3523         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3524                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3525                             &result);
3526
3527         if (rc != LDAP_SUCCESS) {
3528                 return ntstatus;
3529         }
3530
3531         count = ldap_count_entries(priv2ld(ldap_state), result);
3532         if (count < 1) {
3533                 goto out;
3534         }
3535
3536         entry = ldap_first_entry(priv2ld(ldap_state), result);
3537         if (entry == NULL) {
3538                 goto out;
3539         }
3540
3541         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3542         if (vals == NULL) {
3543                 goto out;
3544         }
3545
3546         *value = (uint32)atol(vals[0]);
3547
3548         ntstatus = NT_STATUS_OK;
3549
3550 out:
3551         if (vals)
3552                 ldap_value_free(vals);
3553         ldap_msgfree(result);
3554
3555         return ntstatus;
3556 }
3557
3558 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3559
3560    - if user hasn't decided to use account policies inside LDAP just reuse the
3561      old tdb values
3562
3563    - if there is a valid cache entry, return that
3564    - if there is an LDAP entry, update cache and return
3565    - otherwise set to default, update cache and return
3566
3567    Guenther
3568 */
3569 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3570                                            int policy_index, uint32 *value)
3571 {
3572         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3573
3574         if (!account_policy_migrated(False)) {
3575                 return (account_policy_get(policy_index, value))
3576                         ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3577         }
3578
3579         if (cache_account_policy_get(policy_index, value)) {
3580                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3581                           "cache\n"));
3582                 return NT_STATUS_OK;
3583         }
3584
3585         ntstatus = ldapsam_get_account_policy_from_ldap(methods, policy_index,
3586                                                         value);
3587         if (NT_STATUS_IS_OK(ntstatus)) {
3588                 goto update_cache;
3589         }
3590
3591         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
3592                   "ldap\n"));
3593
3594 #if 0
3595         /* should we automagically migrate old tdb value here ? */
3596         if (account_policy_get(policy_index, value))
3597                 goto update_ldap;
3598
3599         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
3600                   "default\n", policy_index));
3601 #endif
3602
3603         if (!account_policy_get_default(policy_index, value)) {
3604                 return ntstatus;
3605         }
3606
3607 /* update_ldap: */
3608
3609         ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
3610         if (!NT_STATUS_IS_OK(ntstatus)) {
3611                 return ntstatus;
3612         }
3613
3614  update_cache:
3615
3616         if (!cache_account_policy_set(policy_index, *value)) {
3617                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
3618                          "tdb as a cache\n"));
3619                 return NT_STATUS_UNSUCCESSFUL;
3620         }
3621
3622         return NT_STATUS_OK;
3623 }
3624
3625 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
3626                                     const DOM_SID *domain_sid,
3627                                     int num_rids,
3628                                     uint32 *rids,
3629                                     const char **names,
3630                                     uint32 *attrs)
3631 {
3632         struct ldapsam_privates *ldap_state =
3633                 (struct ldapsam_privates *)methods->private_data;
3634         LDAPMessage *msg = NULL;
3635         LDAPMessage *entry;
3636         char *allsids = NULL;
3637         int i, rc, num_mapped;
3638         NTSTATUS result = NT_STATUS_NO_MEMORY;
3639         TALLOC_CTX *mem_ctx;
3640         LDAP *ld;
3641         BOOL is_builtin;
3642
3643         mem_ctx = talloc_new(NULL);
3644         if (mem_ctx == NULL) {
3645                 DEBUG(0, ("talloc_new failed\n"));
3646                 goto done;
3647         }
3648
3649         if (!sid_check_is_builtin(domain_sid) &&
3650             !sid_check_is_domain(domain_sid)) {
3651                 result = NT_STATUS_INVALID_PARAMETER;
3652                 goto done;
3653         }
3654
3655         for (i=0; i<num_rids; i++)
3656                 attrs[i] = SID_NAME_UNKNOWN;
3657
3658         allsids = talloc_strdup(mem_ctx, "");
3659         if (allsids == NULL) {
3660                 goto done;
3661         }
3662
3663         for (i=0; i<num_rids; i++) {
3664                 DOM_SID sid;
3665                 sid_compose(&sid, domain_sid, rids[i]);
3666                 allsids = talloc_asprintf_append(allsids, "(sambaSid=%s)",
3667                                                  sid_string_static(&sid));
3668                 if (allsids == NULL) {
3669                         goto done;
3670                 }
3671         }
3672
3673         /* First look for users */
3674
3675         {
3676                 char *filter;
3677                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
3678
3679                 filter = talloc_asprintf(
3680                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
3681                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
3682
3683                 if (filter == NULL) {
3684                         goto done;
3685                 }
3686
3687                 rc = smbldap_search(ldap_state->smbldap_state,
3688                                     lp_ldap_user_suffix(),
3689                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3690                                     &msg);
3691                 talloc_autofree_ldapmsg(mem_ctx, msg);
3692         }
3693
3694         if (rc != LDAP_SUCCESS)
3695                 goto done;
3696
3697         ld = ldap_state->smbldap_state->ldap_struct;
3698         num_mapped = 0;
3699
3700         for (entry = ldap_first_entry(ld, msg);
3701              entry != NULL;
3702              entry = ldap_next_entry(ld, entry)) {
3703                 uint32 rid;
3704                 int rid_index;
3705                 const char *name;
3706
3707                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3708                                                     &rid)) {
3709                         DEBUG(2, ("Could not find sid from ldap entry\n"));
3710                         continue;
3711                 }
3712
3713                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
3714                                                        names);
3715                 if (name == NULL) {
3716                         DEBUG(2, ("Could not retrieve uid attribute\n"));
3717                         continue;
3718                 }
3719
3720                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3721                         if (rid == rids[rid_index])
3722                                 break;
3723                 }
3724
3725                 if (rid_index == num_rids) {
3726                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3727                         continue;
3728                 }
3729
3730                 attrs[rid_index] = SID_NAME_USER;
3731                 names[rid_index] = name;
3732                 num_mapped += 1;
3733         }
3734
3735         if (num_mapped == num_rids) {
3736                 /* No need to look for groups anymore -- we're done */
3737                 result = NT_STATUS_OK;
3738                 goto done;
3739         }
3740
3741         /* Same game for groups */
3742
3743         {
3744                 char *filter;
3745                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
3746                                              "sambaGroupType", NULL };
3747
3748                 filter = talloc_asprintf(
3749                         mem_ctx, "(&(objectClass=%s)(|%s))",
3750                         LDAP_OBJ_GROUPMAP, allsids);
3751                 if (filter == NULL) {
3752                         goto done;
3753                 }
3754
3755                 rc = smbldap_search(ldap_state->smbldap_state,
3756                                     lp_ldap_group_suffix(),
3757                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3758                                     &msg);
3759                 talloc_autofree_ldapmsg(mem_ctx, msg);
3760         }
3761
3762         if (rc != LDAP_SUCCESS)
3763                 goto done;
3764
3765         /* ldap_struct might have changed due to a reconnect */
3766
3767         ld = ldap_state->smbldap_state->ldap_struct;
3768
3769         /* For consistency checks, we already checked we're only domain or builtin */
3770
3771         is_builtin = sid_check_is_builtin(domain_sid);
3772
3773         for (entry = ldap_first_entry(ld, msg);
3774              entry != NULL;
3775              entry = ldap_next_entry(ld, entry))
3776         {
3777                 uint32 rid;
3778                 int rid_index;
3779                 const char *attr;
3780                 enum SID_NAME_USE type;
3781                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
3782
3783                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
3784                                                        mem_ctx);
3785                 if (attr == NULL) {
3786                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
3787                                   dn));
3788                         continue;
3789                 }
3790
3791                 type = atol(attr);
3792
3793                 /* Consistency checks */
3794                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
3795                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
3796                                      (type != SID_NAME_DOM_GRP)))) {
3797                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
3798                 }
3799
3800                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3801                                                     &rid)) {
3802                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
3803                         continue;
3804                 }
3805
3806                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
3807
3808                 if (attr == NULL) {
3809                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
3810                                    dn));
3811                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
3812                 }
3813
3814                 if (attr == NULL) {
3815                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
3816                                   dn));
3817                         continue;
3818                 }
3819
3820                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3821                         if (rid == rids[rid_index])
3822                                 break;
3823                 }
3824
3825                 if (rid_index == num_rids) {
3826                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3827                         continue;
3828                 }
3829
3830                 attrs[rid_index] = type;
3831                 names[rid_index] = attr;
3832                 num_mapped += 1;
3833         }
3834
3835         result = NT_STATUS_NONE_MAPPED;
3836
3837         if (num_mapped > 0)
3838                 result = (num_mapped == num_rids) ?
3839                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
3840  done:
3841         TALLOC_FREE(mem_ctx);
3842         return result;
3843 }
3844
3845 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
3846 {
3847         char *filter = NULL;
3848         char *escaped = NULL;
3849         char *result = NULL;
3850
3851         asprintf(&filter, "(&%s(objectclass=sambaSamAccount))",
3852                  "(uid=%u)");
3853         if (filter == NULL) goto done;
3854
3855         escaped = escape_ldap_string_alloc(username);
3856         if (escaped == NULL) goto done;
3857
3858         result = talloc_string_sub(mem_ctx, filter, "%u", username);
3859
3860  done:
3861         SAFE_FREE(filter);
3862         SAFE_FREE(escaped);
3863
3864         return result;
3865 }
3866
3867 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
3868 {
3869         int i, num = 0;
3870         va_list ap;
3871         const char **result;
3872
3873         va_start(ap, mem_ctx);
3874         while (va_arg(ap, const char *) != NULL)
3875                 num += 1;
3876         va_end(ap);
3877
3878         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
3879                 return NULL;
3880         }
3881
3882         va_start(ap, mem_ctx);
3883         for (i=0; i<num; i++) {
3884                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
3885                 if (result[i] == NULL) {
3886                         talloc_free(result);
3887                         return NULL;
3888                 }
3889         }
3890         va_end(ap);
3891
3892         result[num] = NULL;
3893         return result;
3894 }
3895
3896 struct ldap_search_state {
3897         struct smbldap_state *connection;
3898
3899         uint32 acct_flags;
3900         uint16 group_type;
3901
3902         const char *base;
3903         int scope;
3904         const char *filter;
3905         const char **attrs;
3906         int attrsonly;
3907         void *pagedresults_cookie;
3908
3909         LDAPMessage *entries, *current_entry;
3910         BOOL (*ldap2displayentry)(struct ldap_search_state *state,
3911                                   TALLOC_CTX *mem_ctx,
3912                                   LDAP *ld, LDAPMessage *entry,
3913                                   struct samr_displayentry *result);
3914 };
3915
3916 static BOOL ldapsam_search_firstpage(struct pdb_search *search)
3917 {
3918         struct ldap_search_state *state = search->private_data;
3919         LDAP *ld;
3920         int rc = LDAP_OPERATIONS_ERROR;
3921
3922         state->entries = NULL;
3923
3924         if (state->connection->paged_results) {
3925                 rc = smbldap_search_paged(state->connection, state->base,
3926                                           state->scope, state->filter,
3927                                           state->attrs, state->attrsonly,
3928                                           lp_ldap_page_size(), &state->entries,
3929                                           &state->pagedresults_cookie);
3930         }
3931
3932         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
3933
3934                 if (state->entries != NULL) {
3935                         /* Left over from unsuccessful paged attempt */
3936                         ldap_msgfree(state->entries);
3937                         state->entries = NULL;
3938                 }
3939
3940                 rc = smbldap_search(state->connection, state->base,
3941                                     state->scope, state->filter, state->attrs,
3942                                     state->attrsonly, &state->entries);
3943
3944                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
3945                         return False;
3946
3947                 /* Ok, the server was lying. It told us it could do paged
3948                  * searches when it could not. */
3949                 state->connection->paged_results = False;
3950         }
3951
3952         ld = state->connection->ldap_struct;
3953         if ( ld == NULL) {
3954                 DEBUG(5, ("Don't have an LDAP connection right after a "
3955                           "search\n"));
3956                 return False;
3957         }
3958         state->current_entry = ldap_first_entry(ld, state->entries);
3959
3960         if (state->current_entry == NULL) {
3961                 ldap_msgfree(state->entries);
3962                 state->entries = NULL;
3963         }
3964
3965         return True;
3966 }
3967
3968 static BOOL ldapsam_search_nextpage(struct pdb_search *search)
3969 {
3970         struct ldap_search_state *state = search->private_data;
3971         int rc;
3972
3973         if (!state->connection->paged_results) {
3974                 /* There is no next page when there are no paged results */
3975                 return False;
3976         }
3977
3978         rc = smbldap_search_paged(state->connection, state->base,
3979                                   state->scope, state->filter, state->attrs,
3980                                   state->attrsonly, lp_ldap_page_size(),
3981                                   &state->entries,
3982                                   &state->pagedresults_cookie);
3983
3984         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
3985                 return False;
3986
3987         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
3988
3989         if (state->current_entry == NULL) {
3990                 ldap_msgfree(state->entries);
3991                 state->entries = NULL;
3992         }
3993
3994         return True;
3995 }
3996
3997 static BOOL ldapsam_search_next_entry(struct pdb_search *search,
3998                                       struct samr_displayentry *entry)
3999 {
4000         struct ldap_search_state *state = search->private_data;
4001         BOOL result;
4002
4003  retry:
4004         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4005                 return False;
4006
4007         if ((state->entries == NULL) &&
4008             !ldapsam_search_nextpage(search))
4009                     return False;
4010
4011         result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
4012                                           state->current_entry, entry);
4013
4014         if (!result) {
4015                 char *dn;
4016                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4017                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4018                 if (dn != NULL) ldap_memfree(dn);
4019         }
4020
4021         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4022
4023         if (state->current_entry == NULL) {
4024                 ldap_msgfree(state->entries);
4025                 state->entries = NULL;
4026         }
4027
4028         if (!result) goto retry;
4029
4030         return True;
4031 }
4032
4033 static void ldapsam_search_end(struct pdb_search *search)
4034 {
4035         struct ldap_search_state *state = search->private_data;
4036         int rc;
4037
4038         if (state->pagedresults_cookie == NULL)
4039                 return;
4040
4041         if (state->entries != NULL)
4042                 ldap_msgfree(state->entries);
4043
4044         state->entries = NULL;
4045         state->current_entry = NULL;
4046
4047         if (!state->connection->paged_results)
4048                 return;
4049
4050         /* Tell the LDAP server we're not interested in the rest anymore. */
4051
4052         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4053                                   state->filter, state->attrs,
4054                                   state->attrsonly, 0, &state->entries,
4055                                   &state->pagedresults_cookie);
4056
4057         if (rc != LDAP_SUCCESS)
4058                 DEBUG(5, ("Could not end search properly\n"));
4059
4060         return;
4061 }
4062
4063 static BOOL ldapuser2displayentry(struct ldap_search_state *state,
4064                                   TALLOC_CTX *mem_ctx,
4065                                   LDAP *ld, LDAPMessage *entry,
4066                                   struct samr_displayentry *result)
4067 {
4068         char **vals;
4069         DOM_SID sid;
4070         uint32 acct_flags;
4071
4072         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4073         if ((vals == NULL) || (vals[0] == NULL)) {
4074                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4075                 return False;
4076         }
4077         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4078         ldap_value_free(vals);
4079
4080         if ((state->acct_flags != 0) &&
4081             ((state->acct_flags & acct_flags) == 0))
4082                 return False;
4083
4084         result->acct_flags = acct_flags;
4085         result->account_name = "";
4086         result->fullname = "";
4087         result->description = "";
4088
4089         vals = ldap_get_values(ld, entry, "uid");
4090         if ((vals == NULL) || (vals[0] == NULL)) {
4091                 DEBUG(5, ("\"uid\" not found\n"));
4092                 return False;
4093         }
4094         pull_utf8_talloc(mem_ctx,
4095                          CONST_DISCARD(char **, &result->account_name),
4096                          vals[0]);
4097         ldap_value_free(vals);
4098
4099         vals = ldap_get_values(ld, entry, "displayName");
4100         if ((vals == NULL) || (vals[0] == NULL))
4101                 DEBUG(8, ("\"displayName\" not found\n"));
4102         else
4103                 pull_utf8_talloc(mem_ctx,
4104                                  CONST_DISCARD(char **, &result->fullname),
4105                                  vals[0]);
4106         ldap_value_free(vals);
4107
4108         vals = ldap_get_values(ld, entry, "description");
4109         if ((vals == NULL) || (vals[0] == NULL))
4110                 DEBUG(8, ("\"description\" not found\n"));
4111         else
4112                 pull_utf8_talloc(mem_ctx,
4113                                  CONST_DISCARD(char **, &result->description),
4114                                  vals[0]);
4115         ldap_value_free(vals);
4116
4117         if ((result->account_name == NULL) ||
4118             (result->fullname == NULL) ||
4119             (result->description == NULL)) {
4120                 DEBUG(0, ("talloc failed\n"));
4121                 return False;
4122         }
4123
4124         vals = ldap_get_values(ld, entry, "sambaSid");
4125         if ((vals == NULL) || (vals[0] == NULL)) {
4126                 DEBUG(0, ("\"objectSid\" not found\n"));
4127                 return False;
4128         }
4129
4130         if (!string_to_sid(&sid, vals[0])) {
4131                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4132                 ldap_value_free(vals);
4133                 return False;
4134         }
4135         ldap_value_free(vals);
4136
4137         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4138                 DEBUG(0, ("sid %s does not belong to our domain\n",
4139                           sid_string_static(&sid)));
4140                 return False;
4141         }
4142
4143         return True;
4144 }
4145
4146
4147 static BOOL ldapsam_search_users(struct pdb_methods *methods,
4148                                  struct pdb_search *search,
4149                                  uint32 acct_flags)
4150 {
4151         struct ldapsam_privates *ldap_state = methods->private_data;
4152         struct ldap_search_state *state;
4153
4154         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4155         if (state == NULL) {
4156                 DEBUG(0, ("talloc failed\n"));
4157                 return False;
4158         }
4159
4160         state->connection = ldap_state->smbldap_state;
4161
4162         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4163                 state->base = lp_ldap_user_suffix();
4164         else if ((acct_flags != 0) &&
4165                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4166                 state->base = lp_ldap_machine_suffix();
4167         else
4168                 state->base = lp_ldap_suffix();
4169
4170         state->acct_flags = acct_flags;
4171         state->base = talloc_strdup(search->mem_ctx, state->base);
4172         state->scope = LDAP_SCOPE_SUBTREE;
4173         state->filter = get_ldap_filter(search->mem_ctx, "*");
4174         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4175                                     "displayName", "description",
4176                                     "sambaAcctFlags", NULL);
4177         state->attrsonly = 0;
4178         state->pagedresults_cookie = NULL;
4179         state->entries = NULL;
4180         state->ldap2displayentry = ldapuser2displayentry;
4181
4182         if ((state->filter == NULL) || (state->attrs == NULL)) {
4183                 DEBUG(0, ("talloc failed\n"));
4184                 return False;
4185         }
4186
4187         search->private_data = state;
4188         search->next_entry = ldapsam_search_next_entry;
4189         search->search_end = ldapsam_search_end;
4190
4191         return ldapsam_search_firstpage(search);
4192 }
4193
4194 static BOOL ldapgroup2displayentry(struct ldap_search_state *state,
4195                                    TALLOC_CTX *mem_ctx,
4196                                    LDAP *ld, LDAPMessage *entry,
4197                                    struct samr_displayentry *result)
4198 {
4199         char **vals;
4200         DOM_SID sid;
4201         uint16 group_type;
4202
4203         result->account_name = "";
4204         result->fullname = "";
4205         result->description = "";
4206
4207
4208         vals = ldap_get_values(ld, entry, "sambaGroupType");
4209         if ((vals == NULL) || (vals[0] == NULL)) {
4210                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4211                 if (vals != NULL) {
4212                         ldap_value_free(vals);
4213                 }
4214                 return False;
4215         }
4216
4217         group_type = atoi(vals[0]);
4218
4219         if ((state->group_type != 0) &&
4220             ((state->group_type != group_type))) {
4221                 ldap_value_free(vals);
4222                 return False;
4223         }
4224
4225         ldap_value_free(vals);
4226
4227         /* display name is the NT group name */
4228
4229         vals = ldap_get_values(ld, entry, "displayName");
4230         if ((vals == NULL) || (vals[0] == NULL)) {
4231                 DEBUG(8, ("\"displayName\" not found\n"));
4232
4233                 /* fallback to the 'cn' attribute */
4234                 vals = ldap_get_values(ld, entry, "cn");
4235                 if ((vals == NULL) || (vals[0] == NULL)) {
4236                         DEBUG(5, ("\"cn\" not found\n"));
4237                         return False;
4238                 }
4239                 pull_utf8_talloc(mem_ctx,
4240                                  CONST_DISCARD(char **, &result->account_name),
4241                                  vals[0]);
4242         }
4243         else {
4244                 pull_utf8_talloc(mem_ctx,
4245                                  CONST_DISCARD(char **, &result->account_name),
4246                                  vals[0]);
4247         }
4248
4249         ldap_value_free(vals);
4250
4251         vals = ldap_get_values(ld, entry, "description");
4252         if ((vals == NULL) || (vals[0] == NULL))
4253                 DEBUG(8, ("\"description\" not found\n"));
4254         else
4255                 pull_utf8_talloc(mem_ctx,
4256                                  CONST_DISCARD(char **, &result->description),
4257                                  vals[0]);
4258         ldap_value_free(vals);
4259
4260         if ((result->account_name == NULL) ||
4261             (result->fullname == NULL) ||
4262             (result->description == NULL)) {
4263                 DEBUG(0, ("talloc failed\n"));
4264                 return False;
4265         }
4266
4267         vals = ldap_get_values(ld, entry, "sambaSid");
4268         if ((vals == NULL) || (vals[0] == NULL)) {
4269                 DEBUG(0, ("\"objectSid\" not found\n"));
4270                 if (vals != NULL) {
4271                         ldap_value_free(vals);
4272                 }
4273                 return False;
4274         }
4275
4276         if (!string_to_sid(&sid, vals[0])) {
4277                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4278                 return False;
4279         }
4280
4281         ldap_value_free(vals);
4282
4283         switch (group_type) {
4284                 case SID_NAME_DOM_GRP:
4285                 case SID_NAME_ALIAS:
4286
4287                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4288                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4289                         {
4290                                 DEBUG(0, ("%s is not in our domain\n",
4291                                           sid_string_static(&sid)));
4292                                 return False;
4293                         }
4294                         break;
4295
4296                 default:
4297                         DEBUG(0,("unkown group type: %d\n", group_type));
4298                         return False;
4299         }
4300
4301         return True;
4302 }
4303
4304 static BOOL ldapsam_search_grouptype(struct pdb_methods *methods,
4305                                      struct pdb_search *search,
4306                                      const DOM_SID *sid,
4307                                      enum SID_NAME_USE type)
4308 {
4309         struct ldapsam_privates *ldap_state = methods->private_data;
4310         struct ldap_search_state *state;
4311
4312         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4313         if (state == NULL) {
4314                 DEBUG(0, ("talloc failed\n"));
4315                 return False;
4316         }
4317
4318         state->connection = ldap_state->smbldap_state;
4319
4320         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4321         state->connection = ldap_state->smbldap_state;
4322         state->scope = LDAP_SCOPE_SUBTREE;
4323         state->filter = talloc_asprintf(search->mem_ctx,
4324                                         "(&(objectclass=sambaGroupMapping)"
4325                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4326                                         type, sid_string_static(sid));
4327         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4328                                     "displayName", "description",
4329                                     "sambaGroupType", NULL);
4330         state->attrsonly = 0;
4331         state->pagedresults_cookie = NULL;
4332         state->entries = NULL;
4333         state->group_type = type;
4334         state->ldap2displayentry = ldapgroup2displayentry;
4335
4336         if ((state->filter == NULL) || (state->attrs == NULL)) {
4337                 DEBUG(0, ("talloc failed\n"));
4338                 return False;
4339         }
4340
4341         search->private_data = state;
4342         search->next_entry = ldapsam_search_next_entry;
4343         search->search_end = ldapsam_search_end;
4344
4345         return ldapsam_search_firstpage(search);
4346 }
4347
4348 static BOOL ldapsam_search_groups(struct pdb_methods *methods,
4349                                   struct pdb_search *search)
4350 {
4351         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4352 }
4353
4354 static BOOL ldapsam_search_aliases(struct pdb_methods *methods,
4355                                    struct pdb_search *search,
4356                                    const DOM_SID *sid)
4357 {
4358         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4359 }
4360
4361 static BOOL ldapsam_rid_algorithm(struct pdb_methods *methods)
4362 {
4363         return False;
4364 }
4365
4366 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4367                                     uint32 *rid)
4368 {
4369         struct smbldap_state *smbldap_state = priv->smbldap_state;
4370
4371         LDAPMessage *result = NULL;
4372         LDAPMessage *entry = NULL;
4373         LDAPMod **mods = NULL;
4374         NTSTATUS status;
4375         char *value;
4376         int rc;
4377         uint32 nextRid = 0;
4378         const char *dn;
4379
4380         TALLOC_CTX *mem_ctx;
4381
4382         mem_ctx = talloc_new(NULL);
4383         if (mem_ctx == NULL) {
4384                 DEBUG(0, ("talloc_new failed\n"));
4385                 return NT_STATUS_NO_MEMORY;
4386         }
4387
4388         status = smbldap_search_domain_info(smbldap_state, &result,
4389                                             get_global_sam_name(), False);
4390         if (!NT_STATUS_IS_OK(status)) {
4391                 DEBUG(3, ("Could not get domain info: %s\n",
4392                           nt_errstr(status)));
4393                 goto done;
4394         }
4395
4396         talloc_autofree_ldapmsg(mem_ctx, result);
4397
4398         entry = ldap_first_entry(priv2ld(priv), result);
4399         if (entry == NULL) {
4400                 DEBUG(0, ("Could not get domain info entry\n"));
4401                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4402                 goto done;
4403         }
4404
4405         /* Find the largest of the three attributes "sambaNextRid",
4406            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4407            concept of differentiating between user and group rids, and will
4408            use only "sambaNextRid" in the future. But for compatibility
4409            reasons I look if others have chosen different strategies -- VL */
4410
4411         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4412                                                 "sambaNextRid", mem_ctx);
4413         if (value != NULL) {
4414                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4415                 nextRid = MAX(nextRid, tmp);
4416         }
4417
4418         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4419                                                 "sambaNextUserRid", mem_ctx);
4420         if (value != NULL) {
4421                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4422                 nextRid = MAX(nextRid, tmp);
4423         }
4424
4425         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4426                                                 "sambaNextGroupRid", mem_ctx);
4427         if (value != NULL) {
4428                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4429                 nextRid = MAX(nextRid, tmp);
4430         }
4431
4432         if (nextRid == 0) {
4433                 nextRid = BASE_RID-1;
4434         }
4435
4436         nextRid += 1;
4437
4438         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4439                          talloc_asprintf(mem_ctx, "%d", nextRid));
4440         talloc_autofree_ldapmod(mem_ctx, mods);
4441
4442         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4443                 status = NT_STATUS_NO_MEMORY;
4444                 goto done;
4445         }
4446
4447         rc = smbldap_modify(smbldap_state, dn, mods);
4448
4449         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4450          * please retry" */
4451
4452         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4453
4454  done:
4455         if (NT_STATUS_IS_OK(status)) {
4456                 *rid = nextRid;
4457         }
4458
4459         TALLOC_FREE(mem_ctx);
4460         return status;
4461 }
4462
4463 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4464 {
4465         int i;
4466
4467         for (i=0; i<10; i++) {
4468                 NTSTATUS result = ldapsam_get_new_rid(methods->private_data,
4469                                                       rid);
4470                 if (NT_STATUS_IS_OK(result)) {
4471                         return result;
4472                 }
4473
4474                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4475                         return result;
4476                 }
4477
4478                 /* The ldap update failed (maybe a race condition), retry */
4479         }
4480
4481         /* Tried 10 times, fail. */
4482         return NT_STATUS_ACCESS_DENIED;
4483 }
4484
4485 static BOOL ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4486 {
4487         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4488         return NT_STATUS_IS_OK(result) ? True : False;
4489 }
4490
4491 static BOOL ldapsam_sid_to_id(struct pdb_methods *methods,
4492                               const DOM_SID *sid,
4493                               union unid_t *id, enum SID_NAME_USE *type)
4494 {
4495         struct ldapsam_privates *priv = methods->private_data;
4496         char *filter;
4497         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4498                                 NULL };
4499         LDAPMessage *result = NULL;
4500         LDAPMessage *entry = NULL;
4501         BOOL ret = False;
4502         char *value;
4503         int rc;
4504
4505         TALLOC_CTX *mem_ctx;
4506
4507         mem_ctx = talloc_new(NULL);
4508         if (mem_ctx == NULL) {
4509                 DEBUG(0, ("talloc_new failed\n"));
4510                 return False;
4511         }
4512
4513         filter = talloc_asprintf(mem_ctx,
4514                                  "(&(sambaSid=%s)"
4515                                  "(|(objectClass=%s)(objectClass=%s)))",
4516                                  sid_string_static(sid),
4517                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4518         if (filter == NULL) {
4519                 DEBUG(5, ("talloc_asprintf failed\n"));
4520                 goto done;
4521         }
4522
4523         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4524                                    attrs, &result);
4525         if (rc != LDAP_SUCCESS) {
4526                 goto done;
4527         }
4528         talloc_autofree_ldapmsg(mem_ctx, result);
4529
4530         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4531                 DEBUG(10, ("Got %d entries, expected one\n",
4532                            ldap_count_entries(priv2ld(priv), result)));
4533                 goto done;
4534         }
4535
4536         entry = ldap_first_entry(priv2ld(priv), result);
4537
4538         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4539                                                 "sambaGroupType", mem_ctx);
4540
4541         if (value != NULL) {
4542                 const char *gid_str;
4543                 /* It's a group */
4544
4545                 gid_str = smbldap_talloc_single_attribute(
4546                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4547                 if (gid_str == NULL) {
4548                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4549                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4550                                                     entry)));
4551                         goto done;
4552                 }
4553
4554                 id->gid = strtoul(gid_str, NULL, 10);
4555                 *type = strtoul(value, NULL, 10);
4556                 ret = True;
4557                 goto done;
4558         }
4559
4560         /* It must be a user */
4561
4562         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4563                                                 "uidNumber", mem_ctx);
4564         if (value == NULL) {
4565                 DEBUG(1, ("Could not find uidNumber in %s\n",
4566                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4567                 goto done;
4568         }
4569
4570         id->uid = strtoul(value, NULL, 10);
4571         *type = SID_NAME_USER;
4572
4573         ret = True;
4574  done:
4575         TALLOC_FREE(mem_ctx);
4576         return ret;
4577 }
4578
4579 /*
4580  * The following functions is called only if
4581  * ldapsam:trusted and ldapsam:editposix are
4582  * set to true
4583  */
4584
4585 /*
4586  * ldapsam_create_user creates a new
4587  * posixAccount and sambaSamAccount object
4588  * in the ldap users subtree
4589  *
4590  * The uid is allocated by winbindd.
4591  */
4592
4593 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
4594                                     TALLOC_CTX *tmp_ctx, const char *name,
4595                                     uint32 acb_info, uint32 *rid)
4596 {
4597         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4598         LDAPMessage *entry = NULL;
4599         LDAPMessage *result = NULL;
4600         uint32 num_result;
4601         BOOL is_machine = False;
4602         BOOL add_posix = False;
4603         LDAPMod **mods = NULL;
4604         struct samu *user;
4605         char *filter;
4606         char *username;
4607         char *homedir;
4608         char *gidstr;
4609         char *uidstr;
4610         char *shell;
4611         const char *dn = NULL;
4612         DOM_SID group_sid;
4613         DOM_SID user_sid;
4614         gid_t gid = -1;
4615         uid_t uid = -1;
4616         NTSTATUS ret;
4617         int rc;
4618
4619         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
4620               acb_info & ACB_WSTRUST ||
4621               acb_info & ACB_SVRTRUST ||
4622               acb_info & ACB_DOMTRUST) {
4623                 is_machine = True;
4624         }
4625
4626         username = escape_ldap_string_alloc(name);
4627         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
4628                                  username, LDAP_OBJ_POSIXACCOUNT);
4629         SAFE_FREE(username);
4630
4631         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4632         if (rc != LDAP_SUCCESS) {
4633                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
4634                 return NT_STATUS_UNSUCCESSFUL;
4635         }
4636         talloc_autofree_ldapmsg(tmp_ctx, result);
4637
4638         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4639
4640         if (num_result > 1) {
4641                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
4642                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4643         }
4644
4645         if (num_result == 1) {
4646                 char *tmp;
4647                 /* check if it is just a posix account.
4648                  * or if there is a sid attached to this entry
4649                  */
4650
4651                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4652                 if (!entry) {
4653                         return NT_STATUS_UNSUCCESSFUL;
4654                 }
4655
4656                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
4657                 if (tmp) {
4658                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
4659                         return NT_STATUS_USER_EXISTS;
4660                 }
4661
4662                 /* it is just a posix account, retrieve the dn for later use */
4663                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4664                 if (!dn) {
4665                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
4666                         return NT_STATUS_NO_MEMORY;
4667                 }
4668         }
4669
4670         if (num_result == 0) {
4671                 add_posix = True;
4672         }
4673
4674         /* Create the basic samu structure and generate the mods for the ldap commit */
4675         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
4676                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
4677                 return ret;
4678         }
4679
4680         sid_compose(&user_sid, get_global_sam_sid(), *rid);
4681
4682         user = samu_new(tmp_ctx);
4683         if (!user) {
4684                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
4685                 return NT_STATUS_NO_MEMORY;
4686         }
4687
4688         if (!pdb_set_username(user, name, PDB_SET)) {
4689                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4690                 return NT_STATUS_UNSUCCESSFUL;
4691         }
4692         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
4693                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4694                 return NT_STATUS_UNSUCCESSFUL;
4695         }
4696         if (is_machine) {
4697                 if (acb_info & ACB_NORMAL) {
4698                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
4699                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4700                                 return NT_STATUS_UNSUCCESSFUL;
4701                         }
4702                 } else {
4703                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
4704                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4705                                 return NT_STATUS_UNSUCCESSFUL;
4706                         }
4707                 }
4708         } else {
4709                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
4710                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4711                         return NT_STATUS_UNSUCCESSFUL;
4712                 }
4713         }
4714
4715         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
4716                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4717                 return NT_STATUS_UNSUCCESSFUL;
4718         }
4719
4720         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
4721                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4722                 return NT_STATUS_UNSUCCESSFUL;
4723         }
4724
4725         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
4726                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
4727         }
4728         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
4729
4730         if (add_posix) {
4731                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
4732
4733                 /* retrieve the Domain Users group gid */
4734                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
4735                     !sid_to_gid(&group_sid, &gid)) {
4736                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
4737                         return NT_STATUS_INVALID_PRIMARY_GROUP;
4738                 }
4739
4740                 /* lets allocate a new userid for this user */
4741                 if (!winbind_allocate_uid(&uid)) {
4742                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
4743                         return NT_STATUS_UNSUCCESSFUL;
4744                 }
4745
4746
4747                 if (is_machine) {
4748                         /* TODO: choose a more appropriate default for machines */
4749                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
4750                         shell = talloc_strdup(tmp_ctx, "/bin/false");
4751                 } else {
4752                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
4753                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
4754                 }
4755                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
4756                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
4757                 if (is_machine) {
4758                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_machine_suffix ());
4759                 } else {
4760                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_user_suffix ());
4761                 }
4762
4763                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
4764                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
4765                         return NT_STATUS_NO_MEMORY;
4766                 }
4767
4768                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
4769                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
4770                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
4771                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
4772                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
4773                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
4774                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
4775         }
4776
4777         talloc_autofree_ldapmod(tmp_ctx, mods);
4778
4779         if (add_posix) {
4780                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
4781         } else {
4782                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
4783         }
4784
4785         if (rc != LDAP_SUCCESS) {
4786                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
4787                 return NT_STATUS_UNSUCCESSFUL;
4788         }
4789
4790         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
4791
4792         flush_pwnam_cache();
4793
4794         return NT_STATUS_OK;
4795 }
4796
4797 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
4798 {
4799         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4800         LDAPMessage *result = NULL;
4801         LDAPMessage *entry = NULL;
4802         int num_result;
4803         const char *dn;
4804         char *filter;
4805         int rc;
4806
4807         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
4808
4809         filter = talloc_asprintf(tmp_ctx,
4810                                  "(&(uid=%s)"
4811                                  "(objectClass=%s)"
4812                                  "(objectClass=%s))",
4813                                  pdb_get_username(sam_acct),
4814                                  LDAP_OBJ_POSIXACCOUNT,
4815                                  LDAP_OBJ_SAMBASAMACCOUNT);
4816         if (filter == NULL) {
4817                 return NT_STATUS_NO_MEMORY;
4818         }
4819
4820         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4821         if (rc != LDAP_SUCCESS) {
4822                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
4823                 return NT_STATUS_UNSUCCESSFUL;
4824         }
4825         talloc_autofree_ldapmsg(tmp_ctx, result);
4826
4827         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4828
4829         if (num_result == 0) {
4830                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
4831                 return NT_STATUS_NO_SUCH_USER;
4832         }
4833
4834         if (num_result > 1) {
4835                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
4836                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4837         }
4838
4839         entry = ldap_first_entry(priv2ld(ldap_state), result);
4840         if (!entry) {
4841                 return NT_STATUS_UNSUCCESSFUL;
4842         }
4843
4844         /* it is just a posix account, retrieve the dn for later use */
4845         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4846         if (!dn) {
4847                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
4848                 return NT_STATUS_NO_MEMORY;
4849         }
4850
4851         rc = smbldap_delete(ldap_state->smbldap_state, dn);
4852         if (rc != LDAP_SUCCESS) {
4853                 return NT_STATUS_UNSUCCESSFUL;
4854         }
4855
4856         flush_pwnam_cache();
4857
4858         return NT_STATUS_OK;
4859 }
4860
4861 /*
4862  * ldapsam_create_group creates a new
4863  * posixGroup and sambaGroupMapping object
4864  * in the ldap groups subtree
4865  *
4866  * The gid is allocated by winbindd.
4867  */
4868
4869 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
4870                                          TALLOC_CTX *tmp_ctx,
4871                                          const char *name,
4872                                          uint32 *rid)
4873 {
4874         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4875         NTSTATUS ret;
4876         LDAPMessage *entry = NULL;
4877         LDAPMessage *result = NULL;
4878         uint32 num_result;
4879         BOOL is_new_entry = False;
4880         LDAPMod **mods = NULL;
4881         char *filter;
4882         char *groupsidstr;
4883         char *groupname;
4884         char *grouptype;
4885         char *gidstr;
4886         const char *dn = NULL;
4887         DOM_SID group_sid;
4888         gid_t gid = -1;
4889         int rc;
4890
4891         groupname = escape_ldap_string_alloc(name);
4892         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
4893                                  groupname, LDAP_OBJ_POSIXGROUP);
4894         SAFE_FREE(groupname);
4895
4896         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4897         if (rc != LDAP_SUCCESS) {
4898                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
4899                 return NT_STATUS_UNSUCCESSFUL;
4900         }
4901         talloc_autofree_ldapmsg(tmp_ctx, result);
4902
4903         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4904
4905         if (num_result > 1) {
4906                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
4907                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4908         }
4909
4910         if (num_result == 1) {
4911                 char *tmp;
4912                 /* check if it is just a posix group.
4913                  * or if there is a sid attached to this entry
4914                  */
4915
4916                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4917                 if (!entry) {
4918                         return NT_STATUS_UNSUCCESSFUL;
4919                 }
4920
4921                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
4922                 if (tmp) {
4923                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
4924                         return NT_STATUS_GROUP_EXISTS;
4925                 }
4926
4927                 /* it is just a posix group, retrieve the gid and the dn for later use */
4928                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
4929                 if (!tmp) {
4930                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
4931                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
4932                 }
4933
4934                 gid = strtoul(tmp, NULL, 10);
4935
4936                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4937                 if (!dn) {
4938                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
4939                         return NT_STATUS_NO_MEMORY;
4940                 }
4941         }
4942
4943         if (num_result == 0) {
4944                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
4945
4946                 is_new_entry = True;
4947
4948                 /* lets allocate a new groupid for this group */
4949                 if (!winbind_allocate_gid(&gid)) {
4950                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
4951                         return NT_STATUS_UNSUCCESSFUL;
4952                 }
4953
4954                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
4955                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", name, lp_ldap_group_suffix());
4956
4957                 if (!gidstr || !dn) {
4958                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
4959                         return NT_STATUS_NO_MEMORY;
4960                 }
4961
4962                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
4963                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
4964                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
4965         }
4966
4967         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
4968                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
4969                 return ret;
4970         }
4971
4972         sid_compose(&group_sid, get_global_sam_sid(), *rid);
4973
4974         groupsidstr = talloc_strdup(tmp_ctx, sid_string_static(&group_sid));
4975         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
4976
4977         if (!groupsidstr || !grouptype) {
4978                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
4979                 return NT_STATUS_NO_MEMORY;
4980         }
4981
4982         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
4983         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
4984         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
4985         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
4986         talloc_autofree_ldapmod(tmp_ctx, mods);
4987
4988         if (is_new_entry) {
4989                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
4990 #if 0
4991                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
4992                         /* This call may fail with rfc2307bis schema */
4993                         /* Retry adding a structural class */
4994                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
4995                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
4996                 }
4997 #endif
4998         } else {
4999                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5000         }
5001
5002         if (rc != LDAP_SUCCESS) {
5003                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5004                 return NT_STATUS_UNSUCCESSFUL;
5005         }
5006
5007         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5008
5009         return NT_STATUS_OK;
5010 }
5011
5012 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5013 {
5014         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5015         LDAPMessage *result = NULL;
5016         LDAPMessage *entry = NULL;
5017         int num_result;
5018         const char *dn;
5019         char *gidstr;
5020         char *filter;
5021         DOM_SID group_sid;
5022         int rc;
5023
5024         /* get the group sid */
5025         sid_compose(&group_sid, get_global_sam_sid(), rid);
5026
5027         filter = talloc_asprintf(tmp_ctx,
5028                                  "(&(sambaSID=%s)"
5029                                  "(objectClass=%s)"
5030                                  "(objectClass=%s))",
5031                                  sid_string_static(&group_sid),
5032                                  LDAP_OBJ_POSIXGROUP,
5033                                  LDAP_OBJ_GROUPMAP);
5034         if (filter == NULL) {
5035                 return NT_STATUS_NO_MEMORY;
5036         }
5037
5038         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5039         if (rc != LDAP_SUCCESS) {
5040                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5041                 return NT_STATUS_UNSUCCESSFUL;
5042         }
5043         talloc_autofree_ldapmsg(tmp_ctx, result);
5044
5045         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5046
5047         if (num_result == 0) {
5048                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5049                 return NT_STATUS_NO_SUCH_GROUP;
5050         }
5051
5052         if (num_result > 1) {
5053                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5054                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5055         }
5056
5057         entry = ldap_first_entry(priv2ld(ldap_state), result);
5058         if (!entry) {
5059                 return NT_STATUS_UNSUCCESSFUL;
5060         }
5061
5062         /* here it is, retrieve the dn for later use */
5063         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5064         if (!dn) {
5065                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5066                 return NT_STATUS_NO_MEMORY;
5067         }
5068
5069         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5070         if (!gidstr) {
5071                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5072                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5073         }
5074
5075         /* check no user have this group marked as primary group */
5076         filter = talloc_asprintf(tmp_ctx,
5077                                  "(&(gidNumber=%s)"
5078                                  "(objectClass=%s)"
5079                                  "(objectClass=%s))",
5080                                  gidstr,
5081                                  LDAP_OBJ_POSIXACCOUNT,
5082                                  LDAP_OBJ_SAMBASAMACCOUNT);
5083
5084         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5085         if (rc != LDAP_SUCCESS) {
5086                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5087                 return NT_STATUS_UNSUCCESSFUL;
5088         }
5089         talloc_autofree_ldapmsg(tmp_ctx, result);
5090
5091         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5092
5093         if (num_result != 0) {
5094                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5095                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5096         }
5097
5098         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5099         if (rc != LDAP_SUCCESS) {
5100                 return NT_STATUS_UNSUCCESSFUL;
5101         }
5102
5103         return NT_STATUS_OK;
5104 }
5105
5106 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5107                                         TALLOC_CTX *tmp_ctx,
5108                                         uint32 group_rid,
5109                                         uint32 member_rid,
5110                                         int modop)
5111 {
5112         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5113         LDAPMessage *entry = NULL;
5114         LDAPMessage *result = NULL;
5115         uint32 num_result;
5116         LDAPMod **mods = NULL;
5117         char *filter;
5118         char *uidstr;
5119         const char *dn = NULL;
5120         DOM_SID group_sid;
5121         DOM_SID member_sid;
5122         int rc;
5123
5124         switch (modop) {
5125         case LDAP_MOD_ADD:
5126                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5127                 break;
5128         case LDAP_MOD_DELETE:
5129                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5130                 break;
5131         default:
5132                 return NT_STATUS_UNSUCCESSFUL;
5133         }
5134
5135         /* get member sid  */
5136         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5137
5138         /* get the group sid */
5139         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5140
5141         filter = talloc_asprintf(tmp_ctx,
5142                                  "(&(sambaSID=%s)"
5143                                  "(objectClass=%s)"
5144                                  "(objectClass=%s))",
5145                                  sid_string_static(&member_sid),
5146                                  LDAP_OBJ_POSIXACCOUNT,
5147                                  LDAP_OBJ_SAMBASAMACCOUNT);
5148         if (filter == NULL) {
5149                 return NT_STATUS_NO_MEMORY;
5150         }
5151
5152         /* get the member uid */
5153         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5154         if (rc != LDAP_SUCCESS) {
5155                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5156                 return NT_STATUS_UNSUCCESSFUL;
5157         }
5158         talloc_autofree_ldapmsg(tmp_ctx, result);
5159
5160         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5161
5162         if (num_result == 0) {
5163                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5164                 return NT_STATUS_NO_SUCH_MEMBER;
5165         }
5166
5167         if (num_result > 1) {
5168                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5169                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5170         }
5171
5172         entry = ldap_first_entry(priv2ld(ldap_state), result);
5173         if (!entry) {
5174                 return NT_STATUS_UNSUCCESSFUL;
5175         }
5176
5177         if (modop == LDAP_MOD_DELETE) {
5178                 /* check if we are trying to remove the member from his primary group */
5179                 char *gidstr;
5180                 gid_t user_gid, group_gid;
5181
5182                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5183                 if (!gidstr) {
5184                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5185                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5186                 }
5187
5188                 user_gid = strtoul(gidstr, NULL, 10);
5189
5190                 if (!sid_to_gid(&group_sid, &group_gid)) {
5191                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5192                         return NT_STATUS_UNSUCCESSFUL;
5193                 }
5194
5195                 if (user_gid == group_gid) {
5196                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from it's own primary group!\n"));
5197                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5198                 }
5199         }
5200
5201         /* here it is, retrieve the uid for later use */
5202         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5203         if (!uidstr) {
5204                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5205                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5206         }
5207
5208         filter = talloc_asprintf(tmp_ctx,
5209                                  "(&(sambaSID=%s)"
5210                                  "(objectClass=%s)"
5211                                  "(objectClass=%s))",
5212                                  sid_string_static(&group_sid),
5213                                  LDAP_OBJ_POSIXGROUP,
5214                                  LDAP_OBJ_GROUPMAP);
5215
5216         /* get the group */
5217         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5218         if (rc != LDAP_SUCCESS) {
5219                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5220                 return NT_STATUS_UNSUCCESSFUL;
5221         }
5222         talloc_autofree_ldapmsg(tmp_ctx, result);
5223
5224         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5225
5226         if (num_result == 0) {
5227                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5228                 return NT_STATUS_NO_SUCH_GROUP;
5229         }
5230
5231         if (num_result > 1) {
5232                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5233                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5234         }
5235
5236         entry = ldap_first_entry(priv2ld(ldap_state), result);
5237         if (!entry) {
5238                 return NT_STATUS_UNSUCCESSFUL;
5239         }
5240
5241         /* here it is, retrieve the dn for later use */
5242         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5243         if (!dn) {
5244                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5245                 return NT_STATUS_NO_MEMORY;
5246         }
5247
5248         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5249
5250         talloc_autofree_ldapmod(tmp_ctx, mods);
5251
5252         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5253         if (rc != LDAP_SUCCESS) {
5254                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5255                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5256                         return NT_STATUS_MEMBER_IN_GROUP;
5257                 }
5258                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5259                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5260                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5261                 }
5262                 return NT_STATUS_UNSUCCESSFUL;
5263         }
5264
5265         return NT_STATUS_OK;
5266 }
5267
5268 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5269                                      TALLOC_CTX *tmp_ctx,
5270                                      uint32 group_rid,
5271                                      uint32 member_rid)
5272 {
5273         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5274 }
5275 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5276                                      TALLOC_CTX *tmp_ctx,
5277                                      uint32 group_rid,
5278                                      uint32 member_rid)
5279 {
5280         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5281 }
5282
5283 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5284                                           TALLOC_CTX *mem_ctx,
5285                                           struct samu *sampass)
5286 {
5287         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5288         LDAPMessage *entry = NULL;
5289         LDAPMessage *result = NULL;
5290         uint32 num_result;
5291         LDAPMod **mods = NULL;
5292         char *filter;
5293         char *gidstr;
5294         const char *dn = NULL;
5295         gid_t gid;
5296         int rc;
5297
5298         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5299
5300         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5301                 DEBUG(0,("ldapsam_set_primary_group: failed to retieve gid from user's group SID!\n"));
5302                 return NT_STATUS_UNSUCCESSFUL;
5303         }
5304         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5305         if (!gidstr) {
5306                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5307                 return NT_STATUS_NO_MEMORY;
5308         }
5309
5310         filter = talloc_asprintf(mem_ctx,
5311                                  "(&(uid=%s)"
5312                                  "(objectClass=%s)"
5313                                  "(objectClass=%s))",
5314                                  pdb_get_username(sampass),
5315                                  LDAP_OBJ_POSIXACCOUNT,
5316                                  LDAP_OBJ_SAMBASAMACCOUNT);
5317         if (filter == NULL) {
5318                 return NT_STATUS_NO_MEMORY;
5319         }
5320
5321         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5322         if (rc != LDAP_SUCCESS) {
5323                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5324                 return NT_STATUS_UNSUCCESSFUL;
5325         }
5326         talloc_autofree_ldapmsg(mem_ctx, result);
5327
5328         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5329
5330         if (num_result == 0) {
5331                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5332                 return NT_STATUS_NO_SUCH_USER;
5333         }
5334
5335         if (num_result > 1) {
5336                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5337                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5338         }
5339
5340         entry = ldap_first_entry(priv2ld(ldap_state), result);
5341         if (!entry) {
5342                 return NT_STATUS_UNSUCCESSFUL;
5343         }
5344
5345         /* retrieve the dn for later use */
5346         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5347         if (!dn) {
5348                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5349                 return NT_STATUS_NO_MEMORY;
5350         }
5351
5352         /* remove the old one, and add the new one, this way we do not risk races */
5353         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5354
5355         if (mods == NULL) {
5356                 return NT_STATUS_OK;
5357         }
5358
5359         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5360
5361         if (rc != LDAP_SUCCESS) {
5362                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5363                          pdb_get_username(sampass), gidstr));
5364                 return NT_STATUS_UNSUCCESSFUL;
5365         }
5366
5367         flush_pwnam_cache();
5368
5369         return NT_STATUS_OK;
5370 }
5371
5372 /**********************************************************************
5373  Housekeeping
5374  *********************************************************************/
5375
5376 static void free_private_data(void **vp)
5377 {
5378         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
5379
5380         smbldap_free_struct(&(*ldap_state)->smbldap_state);
5381
5382         if ((*ldap_state)->result != NULL) {
5383                 ldap_msgfree((*ldap_state)->result);
5384                 (*ldap_state)->result = NULL;
5385         }
5386         if ((*ldap_state)->domain_dn != NULL) {
5387                 SAFE_FREE((*ldap_state)->domain_dn);
5388         }
5389
5390         *ldap_state = NULL;
5391
5392         /* No need to free any further, as it is talloc()ed */
5393 }
5394
5395 /*********************************************************************
5396  Intitalise the parts of the pdb_methods structure that are common to
5397  all pdb_ldap modes
5398 *********************************************************************/
5399
5400 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
5401 {
5402         NTSTATUS nt_status;
5403         struct ldapsam_privates *ldap_state;
5404
5405         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
5406                 return nt_status;
5407         }
5408
5409         (*pdb_method)->name = "ldapsam";
5410
5411         (*pdb_method)->setsampwent = ldapsam_setsampwent;
5412         (*pdb_method)->endsampwent = ldapsam_endsampwent;
5413         (*pdb_method)->getsampwent = ldapsam_getsampwent;
5414         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
5415         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
5416         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
5417         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
5418         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
5419         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
5420
5421         (*pdb_method)->getgrsid = ldapsam_getgrsid;
5422         (*pdb_method)->getgrgid = ldapsam_getgrgid;
5423         (*pdb_method)->getgrnam = ldapsam_getgrnam;
5424         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
5425         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
5426         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
5427         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
5428
5429         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
5430         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
5431
5432         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
5433
5434         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
5435         (*pdb_method)->new_rid = ldapsam_new_rid;
5436
5437         /* TODO: Setup private data and free */
5438
5439         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
5440                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
5441                 return NT_STATUS_NO_MEMORY;
5442         }
5443
5444         nt_status = smbldap_init(*pdb_method, location, &ldap_state->smbldap_state);
5445
5446         if ( !NT_STATUS_IS_OK(nt_status) ) {
5447                 return nt_status;
5448         }
5449
5450         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
5451                 return NT_STATUS_NO_MEMORY;
5452         }
5453
5454         (*pdb_method)->private_data = ldap_state;
5455
5456         (*pdb_method)->free_private_data = free_private_data;
5457
5458         return NT_STATUS_OK;
5459 }
5460
5461 /**********************************************************************
5462  Initialise the 'compat' mode for pdb_ldap
5463  *********************************************************************/
5464
5465 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
5466 {
5467         NTSTATUS nt_status;
5468         struct ldapsam_privates *ldap_state;
5469         char *uri = talloc_strdup( NULL, location );
5470
5471         if (!NT_STATUS_IS_OK(nt_status = pdb_init_ldapsam_common( pdb_method, uri ))) {
5472                 return nt_status;
5473         }
5474
5475         /* the module itself stores a copy of the location so throw this one away */
5476
5477         if ( uri )
5478                 TALLOC_FREE( uri );
5479
5480         (*pdb_method)->name = "ldapsam_compat";
5481
5482         ldap_state = (*pdb_method)->private_data;
5483         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
5484
5485         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5486
5487         return NT_STATUS_OK;
5488 }
5489
5490 /**********************************************************************
5491  Initialise the normal mode for pdb_ldap
5492  *********************************************************************/
5493
5494 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
5495 {
5496         NTSTATUS nt_status;
5497         struct ldapsam_privates *ldap_state;
5498         uint32 alg_rid_base;
5499         pstring alg_rid_base_string;
5500         LDAPMessage *result = NULL;
5501         LDAPMessage *entry = NULL;
5502         DOM_SID ldap_domain_sid;
5503         DOM_SID secrets_domain_sid;
5504         pstring domain_sid_string;
5505         char *dn;
5506
5507         nt_status = pdb_init_ldapsam_common(pdb_method, location);
5508         if (!NT_STATUS_IS_OK(nt_status)) {
5509                 return nt_status;
5510         }
5511
5512         (*pdb_method)->name = "ldapsam";
5513
5514         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
5515         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
5516         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
5517         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
5518         (*pdb_method)->search_users = ldapsam_search_users;
5519         (*pdb_method)->search_groups = ldapsam_search_groups;
5520         (*pdb_method)->search_aliases = ldapsam_search_aliases;
5521
5522         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
5523                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
5524                 (*pdb_method)->enum_group_memberships =
5525                         ldapsam_enum_group_memberships;
5526                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
5527                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
5528
5529                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
5530                         (*pdb_method)->create_user = ldapsam_create_user;
5531                         (*pdb_method)->delete_user = ldapsam_delete_user;
5532                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
5533                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
5534                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
5535                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
5536                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
5537                 }
5538         }
5539
5540         ldap_state = (*pdb_method)->private_data;
5541         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
5542
5543         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
5544
5545         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
5546                                                &result,
5547                                                ldap_state->domain_name, True);
5548
5549         if ( !NT_STATUS_IS_OK(nt_status) ) {
5550                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
5551                           "info, nor add one to the domain\n"));
5552                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
5553                              "will be unable to allocate new users/groups, "
5554                              "and will risk BDCs having inconsistant SIDs\n"));
5555                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5556                 return NT_STATUS_OK;
5557         }
5558
5559         /* Given that the above might fail, everything below this must be
5560          * optional */
5561
5562         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
5563                                  result);
5564         if (!entry) {
5565                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
5566                           "entry\n"));
5567                 ldap_msgfree(result);
5568                 return NT_STATUS_UNSUCCESSFUL;
5569         }
5570
5571         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
5572         if (!dn) {
5573                 return NT_STATUS_UNSUCCESSFUL;
5574         }
5575
5576         ldap_state->domain_dn = smb_xstrdup(dn);
5577         ldap_memfree(dn);
5578
5579         if (smbldap_get_single_pstring(
5580                     ldap_state->smbldap_state->ldap_struct,
5581                     entry,
5582                     get_userattr_key2string(ldap_state->schema_ver,
5583                                             LDAP_ATTR_USER_SID),
5584                     domain_sid_string)) {
5585                 BOOL found_sid;
5586                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
5587                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
5588                                   "read as a valid SID\n", domain_sid_string));
5589                         return NT_STATUS_INVALID_PARAMETER;
5590                 }
5591                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
5592                                                      &secrets_domain_sid);
5593                 if (!found_sid || !sid_equal(&secrets_domain_sid,
5594                                              &ldap_domain_sid)) {
5595                         fstring new_sid_str, old_sid_str;
5596                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
5597                                   "%s based on pdb_ldap results %s -> %s\n",
5598                                   ldap_state->domain_name,
5599                                   sid_to_string(old_sid_str,
5600                                                 &secrets_domain_sid),
5601                                   sid_to_string(new_sid_str,
5602                                                 &ldap_domain_sid)));
5603
5604                         /* reset secrets.tdb sid */
5605                         secrets_store_domain_sid(ldap_state->domain_name,
5606                                                  &ldap_domain_sid);
5607                         DEBUG(1, ("New global sam SID: %s\n",
5608                                   sid_to_string(new_sid_str,
5609                                                 get_global_sam_sid())));
5610                 }
5611                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
5612         }
5613
5614         if (smbldap_get_single_pstring(
5615                     ldap_state->smbldap_state->ldap_struct,
5616                     entry,
5617                     get_attr_key2string( dominfo_attr_list,
5618                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
5619                     alg_rid_base_string)) {
5620                 alg_rid_base = (uint32)atol(alg_rid_base_string);
5621                 if (alg_rid_base != algorithmic_rid_base()) {
5622                         DEBUG(0, ("The value of 'algorithmic RID base' has "
5623                                   "changed since the LDAP\n"
5624                                   "database was initialised.  Aborting. \n"));
5625                         ldap_msgfree(result);
5626                         return NT_STATUS_UNSUCCESSFUL;
5627                 }
5628         }
5629         ldap_msgfree(result);
5630
5631         return NT_STATUS_OK;
5632 }
5633
5634 NTSTATUS pdb_ldap_init(void)
5635 {
5636         NTSTATUS nt_status;
5637         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
5638                 return nt_status;
5639
5640         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
5641                 return nt_status;
5642
5643         /* Let pdb_nds register backends */
5644         pdb_nds_init();
5645
5646         return NT_STATUS_OK;
5647 }