source/passdb/pdb_ldap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau        1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9    Copyright (C) Simo Sorce                     2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 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         /*
1800          * We need to set the backend private data to NULL here. For example
1801          * setuserinfo level 25 does a pdb_update_sam_account twice on the
1802          * same one, and with the explicit delete / add logic for attribute
1803          * values the second time we would use the wrong "old" value which
1804          * does not exist in LDAP anymore. Thus the LDAP server would refuse
1805          * the update.
1806          * The existing LDAPMessage is still being auto-freed by the
1807          * destructor.
1808          */
1809         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
1810                                      PDB_CHANGED);
1811
1812         if (!NT_STATUS_IS_OK(ret)) {
1813                 return ret;
1814         }
1815
1816         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1817                   pdb_get_username(newpwd)));
1818         return NT_STATUS_OK;
1819 }
1820
1821 /***************************************************************************
1822  Renames a struct samu
1823  - The "rename user script" has full responsibility for changing everything
1824 ***************************************************************************/
1825
1826 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
1827                                            struct samu *old_acct,
1828                                            const char *newname)
1829 {
1830         const char *oldname;
1831         int rc;
1832         pstring rename_script;
1833
1834         if (!old_acct) {
1835                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
1836                 return NT_STATUS_INVALID_PARAMETER;
1837         }
1838         if (!newname) {
1839                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
1840                 return NT_STATUS_INVALID_PARAMETER;
1841         }
1842
1843         oldname = pdb_get_username(old_acct);
1844
1845         /* rename the posix user */
1846         pstrcpy(rename_script, lp_renameuser_script());
1847
1848         if (!(*rename_script))
1849                 return NT_STATUS_ACCESS_DENIED;
1850
1851         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
1852                    oldname, newname));
1853
1854         /* we have to allow the account name to end with a '$' */
1855         string_sub2(rename_script, "%unew", newname, sizeof(pstring),
1856                     True, False, True);
1857         string_sub2(rename_script, "%uold", oldname, sizeof(pstring),
1858                     True, False, True);
1859         rc = smbrun(rename_script, NULL);
1860
1861         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
1862                           rename_script, rc));
1863
1864         if (rc)
1865                 return NT_STATUS_UNSUCCESSFUL;
1866
1867         return NT_STATUS_OK;
1868 }
1869
1870 /**********************************************************************
1871  Helper function to determine for update_sam_account whether
1872  we need LDAP modification.
1873  *********************************************************************/
1874
1875 static BOOL element_is_set_or_changed(const struct samu *sampass,
1876                                       enum pdb_elements element)
1877 {
1878         return (IS_SAM_SET(sampass, element) ||
1879                 IS_SAM_CHANGED(sampass, element));
1880 }
1881
1882 /**********************************************************************
1883  Add struct samu to LDAP.
1884 *********************************************************************/
1885
1886 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1887 {
1888         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1889         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1890         int rc;
1891         LDAPMessage     *result = NULL;
1892         LDAPMessage     *entry  = NULL;
1893         pstring         dn;
1894         LDAPMod         **mods = NULL;
1895         int             ldap_op = LDAP_MOD_REPLACE;
1896         uint32          num_result;
1897         const char      **attr_list;
1898         char            *escape_user;
1899         const char      *username = pdb_get_username(newpwd);
1900         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
1901         pstring         filter;
1902         fstring         sid_string;
1903
1904         if (!username || !*username) {
1905                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
1906                 return NT_STATUS_INVALID_PARAMETER;
1907         }
1908
1909         /* free this list after the second search or in case we exit on failure */
1910         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1911
1912         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
1913
1914         if (rc != LDAP_SUCCESS) {
1915                 TALLOC_FREE( attr_list );
1916                 return NT_STATUS_UNSUCCESSFUL;
1917         }
1918
1919         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1920                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
1921                          username));
1922                 ldap_msgfree(result);
1923                 TALLOC_FREE( attr_list );
1924                 return NT_STATUS_UNSUCCESSFUL;
1925         }
1926         ldap_msgfree(result);
1927         result = NULL;
1928
1929         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
1930                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1931                                                   sid, &result);
1932                 if (rc == LDAP_SUCCESS) {
1933                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1934                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' already in the base, with samba attributes\n",
1935                                          sid_to_string(sid_string, sid)));
1936                                 TALLOC_FREE( attr_list );
1937                                 ldap_msgfree(result);
1938                                 return NT_STATUS_UNSUCCESSFUL;
1939                         }
1940                         ldap_msgfree(result);
1941                 }
1942         }
1943
1944         /* does the entry already exist but without a samba attributes?
1945            we need to return the samba attributes here */
1946
1947         escape_user = escape_ldap_string_alloc( username );
1948         pstrcpy( filter, "(uid=%u)" );
1949         all_string_sub( filter, "%u", escape_user, sizeof(filter) );
1950         SAFE_FREE( escape_user );
1951
1952         rc = smbldap_search_suffix(ldap_state->smbldap_state,
1953                                    filter, attr_list, &result);
1954         if ( rc != LDAP_SUCCESS ) {
1955                 TALLOC_FREE( attr_list );
1956                 return NT_STATUS_UNSUCCESSFUL;
1957         }
1958
1959         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1960
1961         if (num_result > 1) {
1962                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
1963                 TALLOC_FREE( attr_list );
1964                 ldap_msgfree(result);
1965                 return NT_STATUS_UNSUCCESSFUL;
1966         }
1967
1968         /* Check if we need to update an existing entry */
1969         if (num_result == 1) {
1970                 char *tmp;
1971
1972                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
1973                 ldap_op = LDAP_MOD_REPLACE;
1974                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
1975                 tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
1976                 if (!tmp) {
1977                         TALLOC_FREE( attr_list );
1978                         ldap_msgfree(result);
1979                         return NT_STATUS_UNSUCCESSFUL;
1980                 }
1981                 slprintf (dn, sizeof (dn) - 1, "%s", tmp);
1982                 SAFE_FREE(tmp);
1983
1984         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
1985
1986                 /* There might be a SID for this account already - say an idmap entry */
1987
1988                 pstr_sprintf(filter, "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
1989                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1990                          sid_to_string(sid_string, sid),
1991                          LDAP_OBJ_IDMAP_ENTRY,
1992                          LDAP_OBJ_SID_ENTRY);
1993
1994                 /* free old result before doing a new search */
1995                 if (result != NULL) {
1996                         ldap_msgfree(result);
1997                         result = NULL;
1998                 }
1999                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2000                                            filter, attr_list, &result);
2001
2002                 if ( rc != LDAP_SUCCESS ) {
2003                         TALLOC_FREE( attr_list );
2004                         return NT_STATUS_UNSUCCESSFUL;
2005                 }
2006
2007                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2008
2009                 if (num_result > 1) {
2010                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2011                         TALLOC_FREE( attr_list );
2012                         ldap_msgfree(result);
2013                         return NT_STATUS_UNSUCCESSFUL;
2014                 }
2015
2016                 /* Check if we need to update an existing entry */
2017                 if (num_result == 1) {
2018                         char *tmp;
2019
2020                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2021                         ldap_op = LDAP_MOD_REPLACE;
2022                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2023                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2024                         if (!tmp) {
2025                                 TALLOC_FREE( attr_list );
2026                                 ldap_msgfree(result);
2027                                 return NT_STATUS_UNSUCCESSFUL;
2028                         }
2029                         slprintf (dn, sizeof (dn) - 1, "%s", tmp);
2030                         SAFE_FREE(tmp);
2031                 }
2032         }
2033
2034         TALLOC_FREE( attr_list );
2035
2036         if (num_result == 0) {
2037                 /* Check if we need to add an entry */
2038                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2039                 ldap_op = LDAP_MOD_ADD;
2040                 if (username[strlen(username)-1] == '$') {
2041                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_machine_suffix ());
2042                 } else {
2043                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_user_suffix ());
2044                 }
2045         }
2046
2047         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2048                                 element_is_set_or_changed)) {
2049                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2050                 ldap_msgfree(result);
2051                 if (mods != NULL)
2052                         ldap_mods_free(mods,True);
2053                 return NT_STATUS_UNSUCCESSFUL;
2054         }
2055
2056         ldap_msgfree(result);
2057
2058         if (mods == NULL) {
2059                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2060                 return NT_STATUS_UNSUCCESSFUL;
2061         }
2062         switch ( ldap_state->schema_ver ) {
2063                 case SCHEMAVER_SAMBAACCOUNT:
2064                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2065                         break;
2066                 case SCHEMAVER_SAMBASAMACCOUNT:
2067                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2068                         break;
2069                 default:
2070                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2071                         break;
2072         }
2073
2074         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2075         if (!NT_STATUS_IS_OK(ret)) {
2076                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2077                          pdb_get_username(newpwd),dn));
2078                 ldap_mods_free(mods, True);
2079                 return ret;
2080         }
2081
2082         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2083         ldap_mods_free(mods, True);
2084
2085         return NT_STATUS_OK;
2086 }
2087
2088 /**********************************************************************
2089  *********************************************************************/
2090
2091 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2092                                      const char *filter,
2093                                      LDAPMessage ** result)
2094 {
2095         int scope = LDAP_SCOPE_SUBTREE;
2096         int rc;
2097         const char **attr_list;
2098
2099         attr_list = get_attr_list(NULL, groupmap_attr_list);
2100         rc = smbldap_search(ldap_state->smbldap_state,
2101                             lp_ldap_group_suffix (), scope,
2102                             filter, attr_list, 0, result);
2103         TALLOC_FREE(attr_list);
2104
2105         return rc;
2106 }
2107
2108 /**********************************************************************
2109  *********************************************************************/
2110
2111 static BOOL init_group_from_ldap(struct ldapsam_privates *ldap_state,
2112                                  GROUP_MAP *map, LDAPMessage *entry)
2113 {
2114         pstring temp;
2115
2116         if (ldap_state == NULL || map == NULL || entry == NULL ||
2117                         ldap_state->smbldap_state->ldap_struct == NULL) {
2118                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2119                 return False;
2120         }
2121
2122         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2123                         get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER), temp)) {
2124                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2125                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2126                 return False;
2127         }
2128         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2129
2130         map->gid = (gid_t)atol(temp);
2131
2132         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2133                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID), temp)) {
2134                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2135                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2136                 return False;
2137         }
2138
2139         if (!string_to_sid(&map->sid, temp)) {
2140                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2141                 return False;
2142         }
2143
2144         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2145                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE), temp)) {
2146                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2147                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2148                 return False;
2149         }
2150         map->sid_name_use = (enum SID_NAME_USE)atol(temp);
2151
2152         if ((map->sid_name_use < SID_NAME_USER) ||
2153                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2154                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2155                 return False;
2156         }
2157
2158         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2159                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), temp)) {
2160                 temp[0] = '\0';
2161                 if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2162                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_CN), temp))
2163                 {
2164                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2165 for gidNumber(%lu)\n",(unsigned long)map->gid));
2166                         return False;
2167                 }
2168         }
2169         fstrcpy(map->nt_name, temp);
2170
2171         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2172                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DESC), temp)) {
2173                 temp[0] = '\0';
2174         }
2175         fstrcpy(map->comment, temp);
2176
2177         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
2178                 store_gid_sid_cache(&map->sid, map->gid);
2179         }
2180
2181         return True;
2182 }
2183
2184 /**********************************************************************
2185  *********************************************************************/
2186
2187 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2188                                  const char *filter,
2189                                  GROUP_MAP *map)
2190 {
2191         struct ldapsam_privates *ldap_state =
2192                 (struct ldapsam_privates *)methods->private_data;
2193         LDAPMessage *result = NULL;
2194         LDAPMessage *entry = NULL;
2195         int count;
2196
2197         if (ldapsam_search_one_group(ldap_state, filter, &result)
2198             != LDAP_SUCCESS) {
2199                 return NT_STATUS_NO_SUCH_GROUP;
2200         }
2201
2202         count = ldap_count_entries(priv2ld(ldap_state), result);
2203
2204         if (count < 1) {
2205                 DEBUG(4, ("ldapsam_getgroup: Did not find group\n"));
2206                 ldap_msgfree(result);
2207                 return NT_STATUS_NO_SUCH_GROUP;
2208         }
2209
2210         if (count > 1) {
2211                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2212                           "count=%d\n", filter, count));
2213                 ldap_msgfree(result);
2214                 return NT_STATUS_NO_SUCH_GROUP;
2215         }
2216
2217         entry = ldap_first_entry(priv2ld(ldap_state), result);
2218
2219         if (!entry) {
2220                 ldap_msgfree(result);
2221                 return NT_STATUS_UNSUCCESSFUL;
2222         }
2223
2224         if (!init_group_from_ldap(ldap_state, map, entry)) {
2225                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2226                           "group filter %s\n", filter));
2227                 ldap_msgfree(result);
2228                 return NT_STATUS_NO_SUCH_GROUP;
2229         }
2230
2231         ldap_msgfree(result);
2232         return NT_STATUS_OK;
2233 }
2234
2235 /**********************************************************************
2236  *********************************************************************/
2237
2238 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2239                                  DOM_SID sid)
2240 {
2241         pstring filter;
2242
2243         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
2244                 LDAP_OBJ_GROUPMAP,
2245                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2246                 sid_string_static(&sid));
2247
2248         return ldapsam_getgroup(methods, filter, map);
2249 }
2250
2251 /**********************************************************************
2252  *********************************************************************/
2253
2254 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2255                                  gid_t gid)
2256 {
2257         pstring filter;
2258
2259         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%lu))",
2260                 LDAP_OBJ_GROUPMAP,
2261                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2262                 (unsigned long)gid);
2263
2264         return ldapsam_getgroup(methods, filter, map);
2265 }
2266
2267 /**********************************************************************
2268  *********************************************************************/
2269
2270 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2271                                  const char *name)
2272 {
2273         pstring filter;
2274         char *escape_name = escape_ldap_string_alloc(name);
2275
2276         if (!escape_name) {
2277                 return NT_STATUS_NO_MEMORY;
2278         }
2279
2280         pstr_sprintf(filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2281                 LDAP_OBJ_GROUPMAP,
2282                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2283                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN), escape_name);
2284
2285         SAFE_FREE(escape_name);
2286
2287         return ldapsam_getgroup(methods, filter, map);
2288 }
2289
2290 static BOOL ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2291                                            LDAPMessage *entry,
2292                                            const DOM_SID *domain_sid,
2293                                            uint32 *rid)
2294 {
2295         fstring str;
2296         DOM_SID sid;
2297
2298         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2299                                           str, sizeof(str)-1)) {
2300                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2301                 return False;
2302         }
2303
2304         if (!string_to_sid(&sid, str)) {
2305                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2306                 return False;
2307         }
2308
2309         if (sid_compare_domain(&sid, domain_sid) != 0) {
2310                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2311                            str, sid_string_static(domain_sid)));
2312                 return False;
2313         }
2314
2315         if (!sid_peek_rid(&sid, rid)) {
2316                 DEBUG(10, ("Could not peek into RID\n"));
2317                 return False;
2318         }
2319
2320         return True;
2321 }
2322
2323 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2324                                            TALLOC_CTX *mem_ctx,
2325                                            const DOM_SID *group,
2326                                            uint32 **pp_member_rids,
2327                                            size_t *p_num_members)
2328 {
2329         struct ldapsam_privates *ldap_state =
2330                 (struct ldapsam_privates *)methods->private_data;
2331         struct smbldap_state *conn = ldap_state->smbldap_state;
2332         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2333         const char *sid_attrs[] = { "sambaSID", NULL };
2334         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2335         LDAPMessage *result = NULL;
2336         LDAPMessage *entry;
2337         char *filter;
2338         char **values = NULL;
2339         char **memberuid;
2340         char *gidstr;
2341         int rc, count;
2342
2343         *pp_member_rids = NULL;
2344         *p_num_members = 0;
2345
2346         filter = talloc_asprintf(mem_ctx,
2347                                  "(&(objectClass=%s)"
2348                                  "(objectClass=%s)"
2349                                  "(sambaSID=%s))",
2350                                  LDAP_OBJ_POSIXGROUP,
2351                                  LDAP_OBJ_GROUPMAP,
2352                                  sid_string_static(group));
2353         if (filter == NULL) {
2354                 ret = NT_STATUS_NO_MEMORY;
2355                 goto done;
2356         }
2357
2358         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2359                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2360                             &result);
2361
2362         if (rc != LDAP_SUCCESS)
2363                 goto done;
2364
2365         talloc_autofree_ldapmsg(mem_ctx, result);
2366
2367         count = ldap_count_entries(conn->ldap_struct, result);
2368
2369         if (count > 1) {
2370                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2371                           sid_string_static(group)));
2372                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2373                 goto done;
2374         }
2375
2376         if (count == 0) {
2377                 ret = NT_STATUS_NO_SUCH_GROUP;
2378                 goto done;
2379         }
2380
2381         entry = ldap_first_entry(conn->ldap_struct, result);
2382         if (entry == NULL)
2383                 goto done;
2384
2385         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2386         if (!gidstr) {
2387                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2388                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2389                 goto done;
2390         }
2391
2392         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2393
2394         if (values) {
2395
2396                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBAACCOUNT);
2397                 if (filter == NULL) {
2398                         ret = NT_STATUS_NO_MEMORY;
2399                         goto done;
2400                 }
2401
2402                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2403                         filter = talloc_asprintf_append(filter, "(uid=%s)", *memberuid);
2404                         if (filter == NULL) {
2405                                 ret = NT_STATUS_NO_MEMORY;
2406                                 goto done;
2407                         }
2408                 }
2409
2410                 filter = talloc_asprintf_append(filter, "))");
2411                 if (filter == NULL) {
2412                         ret = NT_STATUS_NO_MEMORY;
2413                         goto done;
2414                 }
2415
2416                 rc = smbldap_search(conn, lp_ldap_user_suffix(),
2417                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2418                                     &result);
2419
2420                 if (rc != LDAP_SUCCESS)
2421                         goto done;
2422
2423                 count = ldap_count_entries(conn->ldap_struct, result);
2424                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2425
2426                 talloc_autofree_ldapmsg(mem_ctx, result);
2427
2428                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2429                      entry != NULL;
2430                      entry = ldap_next_entry(conn->ldap_struct, entry))
2431                 {
2432                         char *sidstr;
2433                         DOM_SID sid;
2434                         uint32 rid;
2435
2436                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2437                                                                  entry, "sambaSID",
2438                                                                  mem_ctx);
2439                         if (!sidstr) {
2440                                 DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2441                                           "the sambaSID attribute\n"));
2442                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2443                                 goto done;
2444                         }
2445
2446                         if (!string_to_sid(&sid, sidstr))
2447                                 goto done;
2448
2449                         if (!sid_check_is_in_our_domain(&sid)) {
2450                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2451                                           "in our domain\n"));
2452                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2453                                 goto done;
2454                         }
2455
2456                         sid_peek_rid(&sid, &rid);
2457
2458                         add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2459                                                 p_num_members);
2460                 }
2461         }
2462
2463         filter = talloc_asprintf(mem_ctx,
2464                                  "(&(objectClass=%s)"
2465                                  "(gidNumber=%s))",
2466                                  LDAP_OBJ_SAMBASAMACCOUNT,
2467                                  gidstr);
2468
2469         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2470                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2471                             &result);
2472
2473         if (rc != LDAP_SUCCESS)
2474                 goto done;
2475
2476         talloc_autofree_ldapmsg(mem_ctx, result);
2477
2478         for (entry = ldap_first_entry(conn->ldap_struct, result);
2479              entry != NULL;
2480              entry = ldap_next_entry(conn->ldap_struct, entry))
2481         {
2482                 uint32 rid;
2483
2484                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2485                                                     entry,
2486                                                     get_global_sam_sid(),
2487                                                     &rid)) {
2488                         DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2489                                   "the sambaSID attribute\n"));
2490                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2491                         goto done;
2492                 }
2493
2494                 add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2495                                         p_num_members);
2496         }
2497
2498         ret = NT_STATUS_OK;
2499
2500  done:
2501
2502         if (values)
2503                 ldap_value_free(values);
2504
2505         return ret;
2506 }
2507
2508 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2509                                                TALLOC_CTX *mem_ctx,
2510                                                struct samu *user,
2511                                                DOM_SID **pp_sids,
2512                                                gid_t **pp_gids,
2513                                                size_t *p_num_groups)
2514 {
2515         struct ldapsam_privates *ldap_state =
2516                 (struct ldapsam_privates *)methods->private_data;
2517         struct smbldap_state *conn = ldap_state->smbldap_state;
2518         char *filter;
2519         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2520         char *escape_name;
2521         int rc, count;
2522         LDAPMessage *result = NULL;
2523         LDAPMessage *entry;
2524         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2525         size_t num_sids, num_gids;
2526         char *gidstr;
2527         gid_t primary_gid = -1;
2528
2529         *pp_sids = NULL;
2530         num_sids = 0;
2531
2532         if (pdb_get_username(user) == NULL) {
2533                 return NT_STATUS_INVALID_PARAMETER;
2534         }
2535
2536         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2537         if (escape_name == NULL)
2538                 return NT_STATUS_NO_MEMORY;
2539
2540         /* retrieve the users primary gid */
2541         filter = talloc_asprintf(mem_ctx,
2542                                  "(&(objectClass=%s)(uid=%s))",
2543                                  LDAP_OBJ_SAMBASAMACCOUNT,
2544                                  escape_name);
2545         if (filter == NULL) {
2546                 ret = NT_STATUS_NO_MEMORY;
2547                 goto done;
2548         }
2549
2550         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2551                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2552
2553         if (rc != LDAP_SUCCESS)
2554                 goto done;
2555
2556         talloc_autofree_ldapmsg(mem_ctx, result);
2557
2558         count = ldap_count_entries(priv2ld(ldap_state), result);
2559
2560         switch (count) {
2561         case 0:
2562                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2563                 ret = NT_STATUS_NO_SUCH_USER;
2564                 goto done;
2565         case 1:
2566                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2567
2568                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2569                 if (!gidstr) {
2570                         DEBUG (1, ("Unable to find the member's gid!\n"));
2571                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2572                         goto done;
2573                 }
2574                 primary_gid = strtoul(gidstr, NULL, 10);
2575                 break;
2576         default:
2577                 DEBUG(1, ("found more than one accoutn with the same user name ?!\n"));
2578                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2579                 goto done;
2580         }
2581
2582         filter = talloc_asprintf(mem_ctx,
2583                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2584                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2585         if (filter == NULL) {
2586                 ret = NT_STATUS_NO_MEMORY;
2587                 goto done;
2588         }
2589
2590         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2591                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2592
2593         if (rc != LDAP_SUCCESS)
2594                 goto done;
2595
2596         talloc_autofree_ldapmsg(mem_ctx, result);
2597
2598         num_gids = 0;
2599         *pp_gids = NULL;
2600
2601         num_sids = 0;
2602         *pp_sids = NULL;
2603
2604         /* We need to add the primary group as the first gid/sid */
2605
2606         add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids);
2607
2608         /* This sid will be replaced later */
2609
2610         add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids);
2611
2612         for (entry = ldap_first_entry(conn->ldap_struct, result);
2613              entry != NULL;
2614              entry = ldap_next_entry(conn->ldap_struct, entry))
2615         {
2616                 fstring str;
2617                 DOM_SID sid;
2618                 gid_t gid;
2619                 char *end;
2620
2621                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2622                                                   entry, "sambaSID",
2623                                                   str, sizeof(str)-1))
2624                         continue;
2625
2626                 if (!string_to_sid(&sid, str))
2627                         goto done;
2628
2629                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2630                                                   entry, "gidNumber",
2631                                                   str, sizeof(str)-1))
2632                         continue;
2633
2634                 gid = strtoul(str, &end, 10);
2635
2636                 if (PTR_DIFF(end, str) != strlen(str))
2637                         goto done;
2638
2639                 if (gid == primary_gid) {
2640                         sid_copy(&(*pp_sids)[0], &sid);
2641                 } else {
2642                         add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2643                                                 &num_gids);
2644                         add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2645                                                 &num_sids);
2646                 }
2647         }
2648
2649         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2650                 DEBUG(3, ("primary group of [%s] not found\n",
2651                           pdb_get_username(user)));
2652                 goto done;
2653         }
2654
2655         *p_num_groups = num_sids;
2656
2657         ret = NT_STATUS_OK;
2658
2659  done:
2660
2661         SAFE_FREE(escape_name);
2662         return ret;
2663 }
2664
2665 /**********************************************************************
2666  * Augment a posixGroup object with a sambaGroupMapping domgroup
2667  *********************************************************************/
2668
2669 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2670                                        struct ldapsam_privates *ldap_state,
2671                                        GROUP_MAP *map)
2672 {
2673         const char *filter, *dn;
2674         LDAPMessage *msg, *entry;
2675         LDAPMod **mods;
2676         int rc;
2677
2678         filter = talloc_asprintf(mem_ctx,
2679                                  "(&(objectClass=posixGroup)(gidNumber=%u))",
2680                                  map->gid);
2681         if (filter == NULL) {
2682                 return NT_STATUS_NO_MEMORY;
2683         }
2684
2685         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2686                                    get_attr_list(mem_ctx, groupmap_attr_list),
2687                                    &msg);
2688         talloc_autofree_ldapmsg(mem_ctx, msg);
2689
2690         if ((rc != LDAP_SUCCESS) ||
2691             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2692             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2693                 return NT_STATUS_NO_SUCH_GROUP;
2694         }
2695
2696         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2697         if (dn == NULL) {
2698                 return NT_STATUS_NO_MEMORY;
2699         }
2700
2701         mods = NULL;
2702         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
2703                         "sambaGroupMapping");
2704         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
2705                          sid_string_static(&map->sid));
2706         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
2707                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2708         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2709                          map->nt_name);
2710         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2711                          map->comment);
2712         talloc_autofree_ldapmod(mem_ctx, mods);
2713
2714         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2715         if (rc != LDAP_SUCCESS) {
2716                 return NT_STATUS_ACCESS_DENIED;
2717         }
2718
2719         return NT_STATUS_OK;
2720 }
2721
2722 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
2723                                                 GROUP_MAP *map)
2724 {
2725         struct ldapsam_privates *ldap_state =
2726                 (struct ldapsam_privates *)methods->private_data;
2727         LDAPMessage *msg = NULL;
2728         LDAPMod **mods = NULL;
2729         const char *attrs[] = { NULL };
2730         char *filter;
2731
2732         char *dn;
2733         TALLOC_CTX *mem_ctx;
2734         NTSTATUS result;
2735
2736         DOM_SID sid;
2737
2738         int rc;
2739
2740         mem_ctx = talloc_new(NULL);
2741         if (mem_ctx == NULL) {
2742                 DEBUG(0, ("talloc_new failed\n"));
2743                 return NT_STATUS_NO_MEMORY;
2744         }
2745
2746         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
2747                                  sid_string_static(&map->sid));
2748         if (filter == NULL) {
2749                 result = NT_STATUS_NO_MEMORY;
2750                 goto done;
2751         }
2752
2753         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
2754                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
2755         talloc_autofree_ldapmsg(mem_ctx, msg);
2756
2757         if ((rc == LDAP_SUCCESS) &&
2758             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
2759
2760                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
2761                           "group mapping entry\n",
2762                           sid_string_static(&map->sid)));
2763                 result = NT_STATUS_GROUP_EXISTS;
2764                 goto done;
2765         }
2766
2767         switch (map->sid_name_use) {
2768
2769         case SID_NAME_DOM_GRP:
2770                 /* To map a domain group we need to have a posix group
2771                    to attach to. */
2772                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
2773                 goto done;
2774                 break;
2775
2776         case SID_NAME_ALIAS:
2777                 if (!sid_check_is_in_our_domain(&map->sid)
2778                         && !sid_check_is_in_builtin(&map->sid) )
2779                 {
2780                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
2781                                   sid_string_static(&map->sid)));
2782                         result = NT_STATUS_INVALID_PARAMETER;
2783                         goto done;
2784                 }
2785                 break;
2786
2787         default:
2788                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
2789                           sid_type_lookup(map->sid_name_use)));
2790                 result = NT_STATUS_INVALID_PARAMETER;
2791                 goto done;
2792         }
2793
2794         /* Domain groups have been mapped in a separate routine, we have to
2795          * create an alias now */
2796
2797         if (map->gid == -1) {
2798                 DEBUG(10, ("Refusing to map gid==-1\n"));
2799                 result = NT_STATUS_INVALID_PARAMETER;
2800                 goto done;
2801         }
2802
2803         if (pdb_gid_to_sid(map->gid, &sid)) {
2804                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
2805                           "add\n", map->gid, sid_string_static(&sid)));
2806                 result = NT_STATUS_GROUP_EXISTS;
2807                 goto done;
2808         }
2809
2810         /* Ok, enough checks done. It's still racy to go ahead now, but that's
2811          * the best we can get out of LDAP. */
2812
2813         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
2814                              sid_string_static(&map->sid),
2815                              lp_ldap_group_suffix());
2816         if (dn == NULL) {
2817                 result = NT_STATUS_NO_MEMORY;
2818                 goto done;
2819         }
2820
2821         mods = NULL;
2822
2823         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2824                          "sambaSidEntry");
2825         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2826                          "sambaGroupMapping");
2827
2828         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
2829                          sid_string_static(&map->sid));
2830         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
2831                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2832         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
2833                          map->nt_name);
2834         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
2835                          map->comment);
2836         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
2837                          talloc_asprintf(mem_ctx, "%u", map->gid));
2838         talloc_autofree_ldapmod(mem_ctx, mods);
2839
2840         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
2841
2842         result = (rc == LDAP_SUCCESS) ?
2843                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
2844
2845  done:
2846         TALLOC_FREE(mem_ctx);
2847         return result;
2848 }
2849
2850 /**********************************************************************
2851  * Update a group mapping entry. We're quite strict about what can be changed:
2852  * Only the description and displayname may be changed. It simply does not
2853  * make any sense to change the SID, gid or the type in a mapping.
2854  *********************************************************************/
2855
2856 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
2857                                                    GROUP_MAP *map)
2858 {
2859         struct ldapsam_privates *ldap_state =
2860                 (struct ldapsam_privates *)methods->private_data;
2861         int rc;
2862         const char *filter, *dn;
2863         LDAPMessage *msg = NULL;
2864         LDAPMessage *entry = NULL;
2865         LDAPMod **mods = NULL;
2866         TALLOC_CTX *mem_ctx;
2867         NTSTATUS result;
2868
2869         mem_ctx = talloc_new(NULL);
2870         if (mem_ctx == NULL) {
2871                 DEBUG(0, ("talloc_new failed\n"));
2872                 return NT_STATUS_NO_MEMORY;
2873         }
2874
2875         /* Make 100% sure that sid, gid and type are not changed by looking up
2876          * exactly the values we're given in LDAP. */
2877
2878         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
2879                                  "(sambaSid=%s)(gidNumber=%u)"
2880                                  "(sambaGroupType=%d))",
2881                                  LDAP_OBJ_GROUPMAP,
2882                                  sid_string_static(&map->sid), map->gid,
2883                                  map->sid_name_use);
2884         if (filter == NULL) {
2885                 result = NT_STATUS_NO_MEMORY;
2886                 goto done;
2887         }
2888
2889         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2890                                    get_attr_list(mem_ctx, groupmap_attr_list),
2891                                    &msg);
2892         talloc_autofree_ldapmsg(mem_ctx, msg);
2893
2894         if ((rc != LDAP_SUCCESS) ||
2895             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2896             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2897                 result = NT_STATUS_NO_SUCH_GROUP;
2898                 goto done;
2899         }
2900
2901         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2902
2903         if (dn == NULL) {
2904                 result = NT_STATUS_NO_MEMORY;
2905                 goto done;
2906         }
2907
2908         mods = NULL;
2909         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2910                          map->nt_name);
2911         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2912                          map->comment);
2913         talloc_autofree_ldapmod(mem_ctx, mods);
2914
2915         if (mods == NULL) {
2916                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
2917                           "nothing to do\n"));
2918                 result = NT_STATUS_OK;
2919                 goto done;
2920         }
2921
2922         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2923
2924         if (rc != LDAP_SUCCESS) {
2925                 result = NT_STATUS_ACCESS_DENIED;
2926                 goto done;
2927         }
2928
2929         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
2930                   "group %lu in LDAP\n", (unsigned long)map->gid));
2931
2932         result = NT_STATUS_OK;
2933
2934  done:
2935         TALLOC_FREE(mem_ctx);
2936         return result;
2937 }
2938
2939 /**********************************************************************
2940  *********************************************************************/
2941
2942 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
2943                                                    DOM_SID sid)
2944 {
2945         struct ldapsam_privates *priv =
2946                 (struct ldapsam_privates *)methods->private_data;
2947         LDAPMessage *msg, *entry;
2948         int rc;
2949         NTSTATUS result;
2950         TALLOC_CTX *mem_ctx;
2951         char *filter;
2952
2953         mem_ctx = talloc_new(NULL);
2954         if (mem_ctx == NULL) {
2955                 DEBUG(0, ("talloc_new failed\n"));
2956                 return NT_STATUS_NO_MEMORY;
2957         }
2958
2959         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
2960                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
2961                                  sid_string_static(&sid));
2962         if (filter == NULL) {
2963                 result = NT_STATUS_NO_MEMORY;
2964                 goto done;
2965         }
2966         rc = smbldap_search_suffix(priv->smbldap_state, filter,
2967                                    get_attr_list(mem_ctx, groupmap_attr_list),
2968                                    &msg);
2969         talloc_autofree_ldapmsg(mem_ctx, msg);
2970
2971         if ((rc != LDAP_SUCCESS) ||
2972             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
2973             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
2974                 result = NT_STATUS_NO_SUCH_GROUP;
2975                 goto done;
2976         }
2977
2978         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
2979                                   get_attr_list(mem_ctx,
2980                                                 groupmap_attr_list_to_delete));
2981
2982         if ((rc == LDAP_NAMING_VIOLATION) ||
2983             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
2984                 const char *attrs[] = { "sambaGroupType", "description",
2985                                         "displayName", "sambaSIDList",
2986                                         NULL };
2987
2988                 /* Second try. Don't delete the sambaSID attribute, this is
2989                    for "old" entries that are tacked on a winbind
2990                    sambaIdmapEntry. */
2991
2992                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
2993                                           LDAP_OBJ_GROUPMAP, attrs);
2994         }
2995
2996         if ((rc == LDAP_NAMING_VIOLATION) ||
2997             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
2998                 const char *attrs[] = { "sambaGroupType", "description",
2999                                         "displayName", "sambaSIDList",
3000                                         "gidNumber", NULL };
3001
3002                 /* Third try. This is a post-3.0.21 alias (containing only
3003                  * sambaSidEntry and sambaGroupMapping classes), we also have
3004                  * to delete the gidNumber attribute, only the sambaSidEntry
3005                  * remains */
3006
3007                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3008                                           LDAP_OBJ_GROUPMAP, attrs);
3009         }
3010
3011         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3012
3013  done:
3014         TALLOC_FREE(mem_ctx);
3015         return result;
3016  }
3017
3018 /**********************************************************************
3019  *********************************************************************/
3020
3021 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3022                                     BOOL update)
3023 {
3024         struct ldapsam_privates *ldap_state =
3025                 (struct ldapsam_privates *)my_methods->private_data;
3026         fstring filter;
3027         int rc;
3028         const char **attr_list;
3029
3030         pstr_sprintf( filter, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3031         attr_list = get_attr_list( NULL, groupmap_attr_list );
3032         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3033                             LDAP_SCOPE_SUBTREE, filter,
3034                             attr_list, 0, &ldap_state->result);
3035         TALLOC_FREE(attr_list);
3036
3037         if (rc != LDAP_SUCCESS) {
3038                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3039                           ldap_err2string(rc)));
3040                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3041                           lp_ldap_group_suffix(), filter));
3042                 ldap_msgfree(ldap_state->result);
3043                 ldap_state->result = NULL;
3044                 return NT_STATUS_UNSUCCESSFUL;
3045         }
3046
3047         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3048                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3049                                      ldap_state->result)));
3050
3051         ldap_state->entry =
3052                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3053                                  ldap_state->result);
3054         ldap_state->index = 0;
3055
3056         return NT_STATUS_OK;
3057 }
3058
3059 /**********************************************************************
3060  *********************************************************************/
3061
3062 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3063 {
3064         ldapsam_endsampwent(my_methods);
3065 }
3066
3067 /**********************************************************************
3068  *********************************************************************/
3069
3070 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3071                                     GROUP_MAP *map)
3072 {
3073         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3074         struct ldapsam_privates *ldap_state =
3075                 (struct ldapsam_privates *)my_methods->private_data;
3076         BOOL bret = False;
3077
3078         while (!bret) {
3079                 if (!ldap_state->entry)
3080                         return ret;
3081
3082                 ldap_state->index++;
3083                 bret = init_group_from_ldap(ldap_state, map,
3084                                             ldap_state->entry);
3085
3086                 ldap_state->entry =
3087                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3088                                         ldap_state->entry);
3089         }
3090
3091         return NT_STATUS_OK;
3092 }
3093
3094 /**********************************************************************
3095  *********************************************************************/
3096
3097 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3098                                            const DOM_SID *domsid, enum SID_NAME_USE sid_name_use,
3099                                            GROUP_MAP **pp_rmap,
3100                                            size_t *p_num_entries,
3101                                            BOOL unix_only)
3102 {
3103         GROUP_MAP map;
3104         size_t entries = 0;
3105
3106         *p_num_entries = 0;
3107         *pp_rmap = NULL;
3108
3109         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3110                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3111                           "passdb\n"));
3112                 return NT_STATUS_ACCESS_DENIED;
3113         }
3114
3115         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3116                 if (sid_name_use != SID_NAME_UNKNOWN &&
3117                     sid_name_use != map.sid_name_use) {
3118                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3119                                   "not of the requested type\n", map.nt_name));
3120                         continue;
3121                 }
3122                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3123                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3124                                   "non mapped\n", map.nt_name));
3125                         continue;
3126                 }
3127
3128                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3129                 if (!(*pp_rmap)) {
3130                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3131                                  "enlarge group map!\n"));
3132                         return NT_STATUS_UNSUCCESSFUL;
3133                 }
3134
3135                 (*pp_rmap)[entries] = map;
3136
3137                 entries += 1;
3138
3139         }
3140         ldapsam_endsamgrent(methods);
3141
3142         *p_num_entries = entries;
3143
3144         return NT_STATUS_OK;
3145 }
3146
3147 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3148                                         const DOM_SID *alias,
3149                                         const DOM_SID *member,
3150                                         int modop)
3151 {
3152         struct ldapsam_privates *ldap_state =
3153                 (struct ldapsam_privates *)methods->private_data;
3154         char *dn;
3155         LDAPMessage *result = NULL;
3156         LDAPMessage *entry = NULL;
3157         int count;
3158         LDAPMod **mods = NULL;
3159         int rc;
3160         enum SID_NAME_USE type = SID_NAME_USE_NONE;
3161
3162         pstring filter;
3163
3164         if (sid_check_is_in_builtin(alias)) {
3165                 type = SID_NAME_ALIAS;
3166         }
3167
3168         if (sid_check_is_in_our_domain(alias)) {
3169                 type = SID_NAME_ALIAS;
3170         }
3171
3172         if (type == SID_NAME_USE_NONE) {
3173                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3174                           sid_string_static(alias)));
3175                 return NT_STATUS_NO_SUCH_ALIAS;
3176         }
3177
3178         pstr_sprintf(filter,
3179                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3180                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3181                      type);
3182
3183         if (ldapsam_search_one_group(ldap_state, filter,
3184                                      &result) != LDAP_SUCCESS)
3185                 return NT_STATUS_NO_SUCH_ALIAS;
3186
3187         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3188                                    result);
3189
3190         if (count < 1) {
3191                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3192                 ldap_msgfree(result);
3193                 return NT_STATUS_NO_SUCH_ALIAS;
3194         }
3195
3196         if (count > 1) {
3197                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3198                           "filter %s: count=%d\n", filter, count));
3199                 ldap_msgfree(result);
3200                 return NT_STATUS_NO_SUCH_ALIAS;
3201         }
3202
3203         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3204                                  result);
3205
3206         if (!entry) {
3207                 ldap_msgfree(result);
3208                 return NT_STATUS_UNSUCCESSFUL;
3209         }
3210
3211         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
3212         if (!dn) {
3213                 ldap_msgfree(result);
3214                 return NT_STATUS_UNSUCCESSFUL;
3215         }
3216
3217         smbldap_set_mod(&mods, modop,
3218                         get_attr_key2string(groupmap_attr_list,
3219                                             LDAP_ATTR_SID_LIST),
3220                         sid_string_static(member));
3221
3222         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3223
3224         ldap_mods_free(mods, True);
3225         ldap_msgfree(result);
3226         SAFE_FREE(dn);
3227
3228         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3229                 return NT_STATUS_MEMBER_IN_ALIAS;
3230         }
3231
3232         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3233                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3234         }
3235
3236         if (rc != LDAP_SUCCESS) {
3237                 return NT_STATUS_UNSUCCESSFUL;
3238         }
3239
3240         return NT_STATUS_OK;
3241 }
3242
3243 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3244                                      const DOM_SID *alias,
3245                                      const DOM_SID *member)
3246 {
3247         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3248 }
3249
3250 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3251                                      const DOM_SID *alias,
3252                                      const DOM_SID *member)
3253 {
3254         return ldapsam_modify_aliasmem(methods, alias, member,
3255                                        LDAP_MOD_DELETE);
3256 }
3257
3258 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3259                                       const DOM_SID *alias,
3260                                       DOM_SID **pp_members,
3261                                       size_t *p_num_members)
3262 {
3263         struct ldapsam_privates *ldap_state =
3264                 (struct ldapsam_privates *)methods->private_data;
3265         LDAPMessage *result = NULL;
3266         LDAPMessage *entry = NULL;
3267         int count;
3268         char **values;
3269         int i;
3270         pstring filter;
3271         size_t num_members = 0;
3272         enum SID_NAME_USE type = SID_NAME_USE_NONE;
3273
3274         *pp_members = NULL;
3275         *p_num_members = 0;
3276
3277         if (sid_check_is_in_builtin(alias)) {
3278                 type = SID_NAME_ALIAS;
3279         }
3280
3281         if (sid_check_is_in_our_domain(alias)) {
3282                 type = SID_NAME_ALIAS;
3283         }
3284
3285         if (type == SID_NAME_USE_NONE) {
3286                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3287                           sid_string_static(alias)));
3288                 return NT_STATUS_NO_SUCH_ALIAS;
3289         }
3290
3291         pstr_sprintf(filter,
3292                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3293                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3294                      type);
3295
3296         if (ldapsam_search_one_group(ldap_state, filter,
3297                                      &result) != LDAP_SUCCESS)
3298                 return NT_STATUS_NO_SUCH_ALIAS;
3299
3300         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3301                                    result);
3302
3303         if (count < 1) {
3304                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3305                 ldap_msgfree(result);
3306                 return NT_STATUS_NO_SUCH_ALIAS;
3307         }
3308
3309         if (count > 1) {
3310                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3311                           "filter %s: count=%d\n", filter, count));
3312                 ldap_msgfree(result);
3313                 return NT_STATUS_NO_SUCH_ALIAS;
3314         }
3315
3316         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3317                                  result);
3318
3319         if (!entry) {
3320                 ldap_msgfree(result);
3321                 return NT_STATUS_UNSUCCESSFUL;
3322         }
3323
3324         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3325                                  entry,
3326                                  get_attr_key2string(groupmap_attr_list,
3327                                                      LDAP_ATTR_SID_LIST));
3328
3329         if (values == NULL) {
3330                 ldap_msgfree(result);
3331                 return NT_STATUS_OK;
3332         }
3333
3334         count = ldap_count_values(values);
3335
3336         for (i=0; i<count; i++) {
3337                 DOM_SID member;
3338
3339                 if (!string_to_sid(&member, values[i]))
3340                         continue;
3341
3342                 add_sid_to_array(NULL, &member, pp_members, &num_members);
3343         }
3344
3345         *p_num_members = num_members;
3346         ldap_value_free(values);
3347         ldap_msgfree(result);
3348
3349         return NT_STATUS_OK;
3350 }
3351
3352 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3353                                           TALLOC_CTX *mem_ctx,
3354                                           const DOM_SID *domain_sid,
3355                                           const DOM_SID *members,
3356                                           size_t num_members,
3357                                           uint32 **pp_alias_rids,
3358                                           size_t *p_num_alias_rids)
3359 {
3360         struct ldapsam_privates *ldap_state =
3361                 (struct ldapsam_privates *)methods->private_data;
3362         LDAP *ldap_struct;
3363
3364         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3365
3366         LDAPMessage *result = NULL;
3367         LDAPMessage *entry = NULL;
3368         int i;
3369         int rc;
3370         char *filter;
3371         enum SID_NAME_USE type = SID_NAME_USE_NONE;
3372
3373         if (sid_check_is_builtin(domain_sid)) {
3374                 type = SID_NAME_ALIAS;
3375         }
3376
3377         if (sid_check_is_domain(domain_sid)) {
3378                 type = SID_NAME_ALIAS;
3379         }
3380
3381         if (type == SID_NAME_USE_NONE) {
3382                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3383                           sid_string_static(domain_sid)));
3384                 return NT_STATUS_UNSUCCESSFUL;
3385         }
3386
3387         filter = talloc_asprintf(mem_ctx,
3388                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3389                                  LDAP_OBJ_GROUPMAP, type);
3390
3391         for (i=0; i<num_members; i++)
3392                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3393                                          filter,
3394                                          sid_string_static(&members[i]));
3395
3396         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3397
3398         if (filter == NULL) {
3399                 return NT_STATUS_NO_MEMORY;
3400         }
3401
3402         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3403                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3404
3405         if (rc != LDAP_SUCCESS)
3406                 return NT_STATUS_UNSUCCESSFUL;
3407
3408         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3409
3410         for (entry = ldap_first_entry(ldap_struct, result);
3411              entry != NULL;
3412              entry = ldap_next_entry(ldap_struct, entry))
3413         {
3414                 fstring sid_str;
3415                 DOM_SID sid;
3416                 uint32 rid;
3417
3418                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3419                                                   LDAP_ATTRIBUTE_SID,
3420                                                   sid_str,
3421                                                   sizeof(sid_str)-1))
3422                         continue;
3423
3424                 if (!string_to_sid(&sid, sid_str))
3425                         continue;
3426
3427                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3428                         continue;
3429
3430                 add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3431                                         p_num_alias_rids);
3432         }
3433
3434         ldap_msgfree(result);
3435         return NT_STATUS_OK;
3436 }
3437
3438 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3439                                                    int policy_index,
3440                                                    uint32 value)
3441 {
3442         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3443         int rc;
3444         LDAPMod **mods = NULL;
3445         fstring value_string;
3446         const char *policy_attr = NULL;
3447
3448         struct ldapsam_privates *ldap_state =
3449                 (struct ldapsam_privates *)methods->private_data;
3450
3451         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3452
3453         if (!ldap_state->domain_dn) {
3454                 return NT_STATUS_INVALID_PARAMETER;
3455         }
3456
3457         policy_attr = get_account_policy_attr(policy_index);
3458         if (policy_attr == NULL) {
3459                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3460                          "policy\n"));
3461                 return ntstatus;
3462         }
3463
3464         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3465
3466         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3467
3468         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3469                             mods);
3470
3471         ldap_mods_free(mods, True);
3472
3473         if (rc != LDAP_SUCCESS) {
3474                 return ntstatus;
3475         }
3476
3477         if (!cache_account_policy_set(policy_index, value)) {
3478                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3479                          "update local tdb cache\n"));
3480                 return ntstatus;
3481         }
3482
3483         return NT_STATUS_OK;
3484 }
3485
3486 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3487                                            int policy_index, uint32 value)
3488 {
3489         if (!account_policy_migrated(False)) {
3490                 return (account_policy_set(policy_index, value)) ?
3491                         NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3492         }
3493
3494         return ldapsam_set_account_policy_in_ldap(methods, policy_index,
3495                                                   value);
3496 }
3497
3498 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3499                                                      int policy_index,
3500                                                      uint32 *value)
3501 {
3502         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3503         LDAPMessage *result = NULL;
3504         LDAPMessage *entry = NULL;
3505         int count;
3506         int rc;
3507         char **vals = NULL;
3508         const char *policy_attr = NULL;
3509
3510         struct ldapsam_privates *ldap_state =
3511                 (struct ldapsam_privates *)methods->private_data;
3512
3513         const char *attrs[2];
3514
3515         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3516
3517         if (!ldap_state->domain_dn) {
3518                 return NT_STATUS_INVALID_PARAMETER;
3519         }
3520
3521         policy_attr = get_account_policy_attr(policy_index);
3522         if (!policy_attr) {
3523                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3524                          "policy index: %d\n", policy_index));
3525                 return ntstatus;
3526         }
3527
3528         attrs[0] = policy_attr;
3529         attrs[1] = NULL;
3530
3531         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3532                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3533                             &result);
3534
3535         if (rc != LDAP_SUCCESS) {
3536                 return ntstatus;
3537         }
3538
3539         count = ldap_count_entries(priv2ld(ldap_state), result);
3540         if (count < 1) {
3541                 goto out;
3542         }
3543
3544         entry = ldap_first_entry(priv2ld(ldap_state), result);
3545         if (entry == NULL) {
3546                 goto out;
3547         }
3548
3549         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3550         if (vals == NULL) {
3551                 goto out;
3552         }
3553
3554         *value = (uint32)atol(vals[0]);
3555
3556         ntstatus = NT_STATUS_OK;
3557
3558 out:
3559         if (vals)
3560                 ldap_value_free(vals);
3561         ldap_msgfree(result);
3562
3563         return ntstatus;
3564 }
3565
3566 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3567
3568    - if user hasn't decided to use account policies inside LDAP just reuse the
3569      old tdb values
3570
3571    - if there is a valid cache entry, return that
3572    - if there is an LDAP entry, update cache and return
3573    - otherwise set to default, update cache and return
3574
3575    Guenther
3576 */
3577 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3578                                            int policy_index, uint32 *value)
3579 {
3580         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3581
3582         if (!account_policy_migrated(False)) {
3583                 return (account_policy_get(policy_index, value))
3584                         ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3585         }
3586
3587         if (cache_account_policy_get(policy_index, value)) {
3588                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3589                           "cache\n"));
3590                 return NT_STATUS_OK;
3591         }
3592
3593         ntstatus = ldapsam_get_account_policy_from_ldap(methods, policy_index,
3594                                                         value);
3595         if (NT_STATUS_IS_OK(ntstatus)) {
3596                 goto update_cache;
3597         }
3598
3599         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
3600                   "ldap\n"));
3601
3602 #if 0
3603         /* should we automagically migrate old tdb value here ? */
3604         if (account_policy_get(policy_index, value))
3605                 goto update_ldap;
3606
3607         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
3608                   "default\n", policy_index));
3609 #endif
3610
3611         if (!account_policy_get_default(policy_index, value)) {
3612                 return ntstatus;
3613         }
3614
3615 /* update_ldap: */
3616
3617         ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
3618         if (!NT_STATUS_IS_OK(ntstatus)) {
3619                 return ntstatus;
3620         }
3621
3622  update_cache:
3623
3624         if (!cache_account_policy_set(policy_index, *value)) {
3625                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
3626                          "tdb as a cache\n"));
3627                 return NT_STATUS_UNSUCCESSFUL;
3628         }
3629
3630         return NT_STATUS_OK;
3631 }
3632
3633 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
3634                                     const DOM_SID *domain_sid,
3635                                     int num_rids,
3636                                     uint32 *rids,
3637                                     const char **names,
3638                                     enum SID_NAME_USE *attrs)
3639 {
3640         struct ldapsam_privates *ldap_state =
3641                 (struct ldapsam_privates *)methods->private_data;
3642         LDAPMessage *msg = NULL;
3643         LDAPMessage *entry;
3644         char *allsids = NULL;
3645         int i, rc, num_mapped;
3646         NTSTATUS result = NT_STATUS_NO_MEMORY;
3647         TALLOC_CTX *mem_ctx;
3648         LDAP *ld;
3649         BOOL is_builtin;
3650
3651         mem_ctx = talloc_new(NULL);
3652         if (mem_ctx == NULL) {
3653                 DEBUG(0, ("talloc_new failed\n"));
3654                 goto done;
3655         }
3656
3657         if (!sid_check_is_builtin(domain_sid) &&
3658             !sid_check_is_domain(domain_sid)) {
3659                 result = NT_STATUS_INVALID_PARAMETER;
3660                 goto done;
3661         }
3662
3663         for (i=0; i<num_rids; i++)
3664                 attrs[i] = SID_NAME_UNKNOWN;
3665
3666         allsids = talloc_strdup(mem_ctx, "");
3667         if (allsids == NULL) {
3668                 goto done;
3669         }
3670
3671         for (i=0; i<num_rids; i++) {
3672                 DOM_SID sid;
3673                 sid_compose(&sid, domain_sid, rids[i]);
3674                 allsids = talloc_asprintf_append(allsids, "(sambaSid=%s)",
3675                                                  sid_string_static(&sid));
3676                 if (allsids == NULL) {
3677                         goto done;
3678                 }
3679         }
3680
3681         /* First look for users */
3682
3683         {
3684                 char *filter;
3685                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
3686
3687                 filter = talloc_asprintf(
3688                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
3689                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
3690
3691                 if (filter == NULL) {
3692                         goto done;
3693                 }
3694
3695                 rc = smbldap_search(ldap_state->smbldap_state,
3696                                     lp_ldap_user_suffix(),
3697                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3698                                     &msg);
3699                 talloc_autofree_ldapmsg(mem_ctx, msg);
3700         }
3701
3702         if (rc != LDAP_SUCCESS)
3703                 goto done;
3704
3705         ld = ldap_state->smbldap_state->ldap_struct;
3706         num_mapped = 0;
3707
3708         for (entry = ldap_first_entry(ld, msg);
3709              entry != NULL;
3710              entry = ldap_next_entry(ld, entry)) {
3711                 uint32 rid;
3712                 int rid_index;
3713                 const char *name;
3714
3715                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3716                                                     &rid)) {
3717                         DEBUG(2, ("Could not find sid from ldap entry\n"));
3718                         continue;
3719                 }
3720
3721                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
3722                                                        names);
3723                 if (name == NULL) {
3724                         DEBUG(2, ("Could not retrieve uid attribute\n"));
3725                         continue;
3726                 }
3727
3728                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3729                         if (rid == rids[rid_index])
3730                                 break;
3731                 }
3732
3733                 if (rid_index == num_rids) {
3734                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3735                         continue;
3736                 }
3737
3738                 attrs[rid_index] = SID_NAME_USER;
3739                 names[rid_index] = name;
3740                 num_mapped += 1;
3741         }
3742
3743         if (num_mapped == num_rids) {
3744                 /* No need to look for groups anymore -- we're done */
3745                 result = NT_STATUS_OK;
3746                 goto done;
3747         }
3748
3749         /* Same game for groups */
3750
3751         {
3752                 char *filter;
3753                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
3754                                              "sambaGroupType", NULL };
3755
3756                 filter = talloc_asprintf(
3757                         mem_ctx, "(&(objectClass=%s)(|%s))",
3758                         LDAP_OBJ_GROUPMAP, allsids);
3759                 if (filter == NULL) {
3760                         goto done;
3761                 }
3762
3763                 rc = smbldap_search(ldap_state->smbldap_state,
3764                                     lp_ldap_group_suffix(),
3765                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3766                                     &msg);
3767                 talloc_autofree_ldapmsg(mem_ctx, msg);
3768         }
3769
3770         if (rc != LDAP_SUCCESS)
3771                 goto done;
3772
3773         /* ldap_struct might have changed due to a reconnect */
3774
3775         ld = ldap_state->smbldap_state->ldap_struct;
3776
3777         /* For consistency checks, we already checked we're only domain or builtin */
3778
3779         is_builtin = sid_check_is_builtin(domain_sid);
3780
3781         for (entry = ldap_first_entry(ld, msg);
3782              entry != NULL;
3783              entry = ldap_next_entry(ld, entry))
3784         {
3785                 uint32 rid;
3786                 int rid_index;
3787                 const char *attr;
3788                 enum SID_NAME_USE type;
3789                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
3790
3791                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
3792                                                        mem_ctx);
3793                 if (attr == NULL) {
3794                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
3795                                   dn));
3796                         continue;
3797                 }
3798
3799                 type = (enum SID_NAME_USE)atol(attr);
3800
3801                 /* Consistency checks */
3802                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
3803                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
3804                                      (type != SID_NAME_DOM_GRP)))) {
3805                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
3806                 }
3807
3808                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3809                                                     &rid)) {
3810                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
3811                         continue;
3812                 }
3813
3814                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
3815
3816                 if (attr == NULL) {
3817                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
3818                                    dn));
3819                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
3820                 }
3821
3822                 if (attr == NULL) {
3823                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
3824                                   dn));
3825                         continue;
3826                 }
3827
3828                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3829                         if (rid == rids[rid_index])
3830                                 break;
3831                 }
3832
3833                 if (rid_index == num_rids) {
3834                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3835                         continue;
3836                 }
3837
3838                 attrs[rid_index] = type;
3839                 names[rid_index] = attr;
3840                 num_mapped += 1;
3841         }
3842
3843         result = NT_STATUS_NONE_MAPPED;
3844
3845         if (num_mapped > 0)
3846                 result = (num_mapped == num_rids) ?
3847                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
3848  done:
3849         TALLOC_FREE(mem_ctx);
3850         return result;
3851 }
3852
3853 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
3854 {
3855         char *filter = NULL;
3856         char *escaped = NULL;
3857         char *result = NULL;
3858
3859         asprintf(&filter, "(&%s(objectclass=sambaSamAccount))",
3860                  "(uid=%u)");
3861         if (filter == NULL) goto done;
3862
3863         escaped = escape_ldap_string_alloc(username);
3864         if (escaped == NULL) goto done;
3865
3866         result = talloc_string_sub(mem_ctx, filter, "%u", username);
3867
3868  done:
3869         SAFE_FREE(filter);
3870         SAFE_FREE(escaped);
3871
3872         return result;
3873 }
3874
3875 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
3876 {
3877         int i, num = 0;
3878         va_list ap;
3879         const char **result;
3880
3881         va_start(ap, mem_ctx);
3882         while (va_arg(ap, const char *) != NULL)
3883                 num += 1;
3884         va_end(ap);
3885
3886         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
3887                 return NULL;
3888         }
3889
3890         va_start(ap, mem_ctx);
3891         for (i=0; i<num; i++) {
3892                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
3893                 if (result[i] == NULL) {
3894                         talloc_free(result);
3895                         return NULL;
3896                 }
3897         }
3898         va_end(ap);
3899
3900         result[num] = NULL;
3901         return result;
3902 }
3903
3904 struct ldap_search_state {
3905         struct smbldap_state *connection;
3906
3907         uint32 acct_flags;
3908         uint16 group_type;
3909
3910         const char *base;
3911         int scope;
3912         const char *filter;
3913         const char **attrs;
3914         int attrsonly;
3915         void *pagedresults_cookie;
3916
3917         LDAPMessage *entries, *current_entry;
3918         BOOL (*ldap2displayentry)(struct ldap_search_state *state,
3919                                   TALLOC_CTX *mem_ctx,
3920                                   LDAP *ld, LDAPMessage *entry,
3921                                   struct samr_displayentry *result);
3922 };
3923
3924 static BOOL ldapsam_search_firstpage(struct pdb_search *search)
3925 {
3926         struct ldap_search_state *state = search->private_data;
3927         LDAP *ld;
3928         int rc = LDAP_OPERATIONS_ERROR;
3929
3930         state->entries = NULL;
3931
3932         if (state->connection->paged_results) {
3933                 rc = smbldap_search_paged(state->connection, state->base,
3934                                           state->scope, state->filter,
3935                                           state->attrs, state->attrsonly,
3936                                           lp_ldap_page_size(), &state->entries,
3937                                           &state->pagedresults_cookie);
3938         }
3939
3940         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
3941
3942                 if (state->entries != NULL) {
3943                         /* Left over from unsuccessful paged attempt */
3944                         ldap_msgfree(state->entries);
3945                         state->entries = NULL;
3946                 }
3947
3948                 rc = smbldap_search(state->connection, state->base,
3949                                     state->scope, state->filter, state->attrs,
3950                                     state->attrsonly, &state->entries);
3951
3952                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
3953                         return False;
3954
3955                 /* Ok, the server was lying. It told us it could do paged
3956                  * searches when it could not. */
3957                 state->connection->paged_results = False;
3958         }
3959
3960         ld = state->connection->ldap_struct;
3961         if ( ld == NULL) {
3962                 DEBUG(5, ("Don't have an LDAP connection right after a "
3963                           "search\n"));
3964                 return False;
3965         }
3966         state->current_entry = ldap_first_entry(ld, state->entries);
3967
3968         if (state->current_entry == NULL) {
3969                 ldap_msgfree(state->entries);
3970                 state->entries = NULL;
3971         }
3972
3973         return True;
3974 }
3975
3976 static BOOL ldapsam_search_nextpage(struct pdb_search *search)
3977 {
3978         struct ldap_search_state *state = search->private_data;
3979         int rc;
3980
3981         if (!state->connection->paged_results) {
3982                 /* There is no next page when there are no paged results */
3983                 return False;
3984         }
3985
3986         rc = smbldap_search_paged(state->connection, state->base,
3987                                   state->scope, state->filter, state->attrs,
3988                                   state->attrsonly, lp_ldap_page_size(),
3989                                   &state->entries,
3990                                   &state->pagedresults_cookie);
3991
3992         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
3993                 return False;
3994
3995         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
3996
3997         if (state->current_entry == NULL) {
3998                 ldap_msgfree(state->entries);
3999                 state->entries = NULL;
4000         }
4001
4002         return True;
4003 }
4004
4005 static BOOL ldapsam_search_next_entry(struct pdb_search *search,
4006                                       struct samr_displayentry *entry)
4007 {
4008         struct ldap_search_state *state = search->private_data;
4009         BOOL result;
4010
4011  retry:
4012         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4013                 return False;
4014
4015         if ((state->entries == NULL) &&
4016             !ldapsam_search_nextpage(search))
4017                     return False;
4018
4019         result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
4020                                           state->current_entry, entry);
4021
4022         if (!result) {
4023                 char *dn;
4024                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4025                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4026                 if (dn != NULL) ldap_memfree(dn);
4027         }
4028
4029         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4030
4031         if (state->current_entry == NULL) {
4032                 ldap_msgfree(state->entries);
4033                 state->entries = NULL;
4034         }
4035
4036         if (!result) goto retry;
4037
4038         return True;
4039 }
4040
4041 static void ldapsam_search_end(struct pdb_search *search)
4042 {
4043         struct ldap_search_state *state = search->private_data;
4044         int rc;
4045
4046         if (state->pagedresults_cookie == NULL)
4047                 return;
4048
4049         if (state->entries != NULL)
4050                 ldap_msgfree(state->entries);
4051
4052         state->entries = NULL;
4053         state->current_entry = NULL;
4054
4055         if (!state->connection->paged_results)
4056                 return;
4057
4058         /* Tell the LDAP server we're not interested in the rest anymore. */
4059
4060         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4061                                   state->filter, state->attrs,
4062                                   state->attrsonly, 0, &state->entries,
4063                                   &state->pagedresults_cookie);
4064
4065         if (rc != LDAP_SUCCESS)
4066                 DEBUG(5, ("Could not end search properly\n"));
4067
4068         return;
4069 }
4070
4071 static BOOL ldapuser2displayentry(struct ldap_search_state *state,
4072                                   TALLOC_CTX *mem_ctx,
4073                                   LDAP *ld, LDAPMessage *entry,
4074                                   struct samr_displayentry *result)
4075 {
4076         char **vals;
4077         DOM_SID sid;
4078         uint32 acct_flags;
4079
4080         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4081         if ((vals == NULL) || (vals[0] == NULL)) {
4082                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4083                 return False;
4084         }
4085         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4086         ldap_value_free(vals);
4087
4088         if ((state->acct_flags != 0) &&
4089             ((state->acct_flags & acct_flags) == 0))
4090                 return False;
4091
4092         result->acct_flags = acct_flags;
4093         result->account_name = "";
4094         result->fullname = "";
4095         result->description = "";
4096
4097         vals = ldap_get_values(ld, entry, "uid");
4098         if ((vals == NULL) || (vals[0] == NULL)) {
4099                 DEBUG(5, ("\"uid\" not found\n"));
4100                 return False;
4101         }
4102         pull_utf8_talloc(mem_ctx,
4103                          CONST_DISCARD(char **, &result->account_name),
4104                          vals[0]);
4105         ldap_value_free(vals);
4106
4107         vals = ldap_get_values(ld, entry, "displayName");
4108         if ((vals == NULL) || (vals[0] == NULL))
4109                 DEBUG(8, ("\"displayName\" not found\n"));
4110         else
4111                 pull_utf8_talloc(mem_ctx,
4112                                  CONST_DISCARD(char **, &result->fullname),
4113                                  vals[0]);
4114         ldap_value_free(vals);
4115
4116         vals = ldap_get_values(ld, entry, "description");
4117         if ((vals == NULL) || (vals[0] == NULL))
4118                 DEBUG(8, ("\"description\" not found\n"));
4119         else
4120                 pull_utf8_talloc(mem_ctx,
4121                                  CONST_DISCARD(char **, &result->description),
4122                                  vals[0]);
4123         ldap_value_free(vals);
4124
4125         if ((result->account_name == NULL) ||
4126             (result->fullname == NULL) ||
4127             (result->description == NULL)) {
4128                 DEBUG(0, ("talloc failed\n"));
4129                 return False;
4130         }
4131
4132         vals = ldap_get_values(ld, entry, "sambaSid");
4133         if ((vals == NULL) || (vals[0] == NULL)) {
4134                 DEBUG(0, ("\"objectSid\" not found\n"));
4135                 return False;
4136         }
4137
4138         if (!string_to_sid(&sid, vals[0])) {
4139                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4140                 ldap_value_free(vals);
4141                 return False;
4142         }
4143         ldap_value_free(vals);
4144
4145         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4146                 DEBUG(0, ("sid %s does not belong to our domain\n",
4147                           sid_string_static(&sid)));
4148                 return False;
4149         }
4150
4151         return True;
4152 }
4153
4154
4155 static BOOL ldapsam_search_users(struct pdb_methods *methods,
4156                                  struct pdb_search *search,
4157                                  uint32 acct_flags)
4158 {
4159         struct ldapsam_privates *ldap_state = methods->private_data;
4160         struct ldap_search_state *state;
4161
4162         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4163         if (state == NULL) {
4164                 DEBUG(0, ("talloc failed\n"));
4165                 return False;
4166         }
4167
4168         state->connection = ldap_state->smbldap_state;
4169
4170         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4171                 state->base = lp_ldap_user_suffix();
4172         else if ((acct_flags != 0) &&
4173                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4174                 state->base = lp_ldap_machine_suffix();
4175         else
4176                 state->base = lp_ldap_suffix();
4177
4178         state->acct_flags = acct_flags;
4179         state->base = talloc_strdup(search->mem_ctx, state->base);
4180         state->scope = LDAP_SCOPE_SUBTREE;
4181         state->filter = get_ldap_filter(search->mem_ctx, "*");
4182         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4183                                     "displayName", "description",
4184                                     "sambaAcctFlags", NULL);
4185         state->attrsonly = 0;
4186         state->pagedresults_cookie = NULL;
4187         state->entries = NULL;
4188         state->ldap2displayentry = ldapuser2displayentry;
4189
4190         if ((state->filter == NULL) || (state->attrs == NULL)) {
4191                 DEBUG(0, ("talloc failed\n"));
4192                 return False;
4193         }
4194
4195         search->private_data = state;
4196         search->next_entry = ldapsam_search_next_entry;
4197         search->search_end = ldapsam_search_end;
4198
4199         return ldapsam_search_firstpage(search);
4200 }
4201
4202 static BOOL ldapgroup2displayentry(struct ldap_search_state *state,
4203                                    TALLOC_CTX *mem_ctx,
4204                                    LDAP *ld, LDAPMessage *entry,
4205                                    struct samr_displayentry *result)
4206 {
4207         char **vals;
4208         DOM_SID sid;
4209         uint16 group_type;
4210
4211         result->account_name = "";
4212         result->fullname = "";
4213         result->description = "";
4214
4215
4216         vals = ldap_get_values(ld, entry, "sambaGroupType");
4217         if ((vals == NULL) || (vals[0] == NULL)) {
4218                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4219                 if (vals != NULL) {
4220                         ldap_value_free(vals);
4221                 }
4222                 return False;
4223         }
4224
4225         group_type = atoi(vals[0]);
4226
4227         if ((state->group_type != 0) &&
4228             ((state->group_type != group_type))) {
4229                 ldap_value_free(vals);
4230                 return False;
4231         }
4232
4233         ldap_value_free(vals);
4234
4235         /* display name is the NT group name */
4236
4237         vals = ldap_get_values(ld, entry, "displayName");
4238         if ((vals == NULL) || (vals[0] == NULL)) {
4239                 DEBUG(8, ("\"displayName\" not found\n"));
4240
4241                 /* fallback to the 'cn' attribute */
4242                 vals = ldap_get_values(ld, entry, "cn");
4243                 if ((vals == NULL) || (vals[0] == NULL)) {
4244                         DEBUG(5, ("\"cn\" not found\n"));
4245                         return False;
4246                 }
4247                 pull_utf8_talloc(mem_ctx,
4248                                  CONST_DISCARD(char **, &result->account_name),
4249                                  vals[0]);
4250         }
4251         else {
4252                 pull_utf8_talloc(mem_ctx,
4253                                  CONST_DISCARD(char **, &result->account_name),
4254                                  vals[0]);
4255         }
4256
4257         ldap_value_free(vals);
4258
4259         vals = ldap_get_values(ld, entry, "description");
4260         if ((vals == NULL) || (vals[0] == NULL))
4261                 DEBUG(8, ("\"description\" not found\n"));
4262         else
4263                 pull_utf8_talloc(mem_ctx,
4264                                  CONST_DISCARD(char **, &result->description),
4265                                  vals[0]);
4266         ldap_value_free(vals);
4267
4268         if ((result->account_name == NULL) ||
4269             (result->fullname == NULL) ||
4270             (result->description == NULL)) {
4271                 DEBUG(0, ("talloc failed\n"));
4272                 return False;
4273         }
4274
4275         vals = ldap_get_values(ld, entry, "sambaSid");
4276         if ((vals == NULL) || (vals[0] == NULL)) {
4277                 DEBUG(0, ("\"objectSid\" not found\n"));
4278                 if (vals != NULL) {
4279                         ldap_value_free(vals);
4280                 }
4281                 return False;
4282         }
4283
4284         if (!string_to_sid(&sid, vals[0])) {
4285                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4286                 return False;
4287         }
4288
4289         ldap_value_free(vals);
4290
4291         switch (group_type) {
4292                 case SID_NAME_DOM_GRP:
4293                 case SID_NAME_ALIAS:
4294
4295                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4296                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4297                         {
4298                                 DEBUG(0, ("%s is not in our domain\n",
4299                                           sid_string_static(&sid)));
4300                                 return False;
4301                         }
4302                         break;
4303
4304                 default:
4305                         DEBUG(0,("unkown group type: %d\n", group_type));
4306                         return False;
4307         }
4308
4309         return True;
4310 }
4311
4312 static BOOL ldapsam_search_grouptype(struct pdb_methods *methods,
4313                                      struct pdb_search *search,
4314                                      const DOM_SID *sid,
4315                                      enum SID_NAME_USE type)
4316 {
4317         struct ldapsam_privates *ldap_state = methods->private_data;
4318         struct ldap_search_state *state;
4319
4320         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4321         if (state == NULL) {
4322                 DEBUG(0, ("talloc failed\n"));
4323                 return False;
4324         }
4325
4326         state->connection = ldap_state->smbldap_state;
4327
4328         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4329         state->connection = ldap_state->smbldap_state;
4330         state->scope = LDAP_SCOPE_SUBTREE;
4331         state->filter = talloc_asprintf(search->mem_ctx,
4332                                         "(&(objectclass=sambaGroupMapping)"
4333                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4334                                         type, sid_string_static(sid));
4335         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4336                                     "displayName", "description",
4337                                     "sambaGroupType", NULL);
4338         state->attrsonly = 0;
4339         state->pagedresults_cookie = NULL;
4340         state->entries = NULL;
4341         state->group_type = type;
4342         state->ldap2displayentry = ldapgroup2displayentry;
4343
4344         if ((state->filter == NULL) || (state->attrs == NULL)) {
4345                 DEBUG(0, ("talloc failed\n"));
4346                 return False;
4347         }
4348
4349         search->private_data = state;
4350         search->next_entry = ldapsam_search_next_entry;
4351         search->search_end = ldapsam_search_end;
4352
4353         return ldapsam_search_firstpage(search);
4354 }
4355
4356 static BOOL ldapsam_search_groups(struct pdb_methods *methods,
4357                                   struct pdb_search *search)
4358 {
4359         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4360 }
4361
4362 static BOOL ldapsam_search_aliases(struct pdb_methods *methods,
4363                                    struct pdb_search *search,
4364                                    const DOM_SID *sid)
4365 {
4366         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4367 }
4368
4369 static BOOL ldapsam_rid_algorithm(struct pdb_methods *methods)
4370 {
4371         return False;
4372 }
4373
4374 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4375                                     uint32 *rid)
4376 {
4377         struct smbldap_state *smbldap_state = priv->smbldap_state;
4378
4379         LDAPMessage *result = NULL;
4380         LDAPMessage *entry = NULL;
4381         LDAPMod **mods = NULL;
4382         NTSTATUS status;
4383         char *value;
4384         int rc;
4385         uint32 nextRid = 0;
4386         const char *dn;
4387
4388         TALLOC_CTX *mem_ctx;
4389
4390         mem_ctx = talloc_new(NULL);
4391         if (mem_ctx == NULL) {
4392                 DEBUG(0, ("talloc_new failed\n"));
4393                 return NT_STATUS_NO_MEMORY;
4394         }
4395
4396         status = smbldap_search_domain_info(smbldap_state, &result,
4397                                             get_global_sam_name(), False);
4398         if (!NT_STATUS_IS_OK(status)) {
4399                 DEBUG(3, ("Could not get domain info: %s\n",
4400                           nt_errstr(status)));
4401                 goto done;
4402         }
4403
4404         talloc_autofree_ldapmsg(mem_ctx, result);
4405
4406         entry = ldap_first_entry(priv2ld(priv), result);
4407         if (entry == NULL) {
4408                 DEBUG(0, ("Could not get domain info entry\n"));
4409                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4410                 goto done;
4411         }
4412
4413         /* Find the largest of the three attributes "sambaNextRid",
4414            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4415            concept of differentiating between user and group rids, and will
4416            use only "sambaNextRid" in the future. But for compatibility
4417            reasons I look if others have chosen different strategies -- VL */
4418
4419         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4420                                                 "sambaNextRid", mem_ctx);
4421         if (value != NULL) {
4422                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4423                 nextRid = MAX(nextRid, tmp);
4424         }
4425
4426         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4427                                                 "sambaNextUserRid", mem_ctx);
4428         if (value != NULL) {
4429                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4430                 nextRid = MAX(nextRid, tmp);
4431         }
4432
4433         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4434                                                 "sambaNextGroupRid", mem_ctx);
4435         if (value != NULL) {
4436                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4437                 nextRid = MAX(nextRid, tmp);
4438         }
4439
4440         if (nextRid == 0) {
4441                 nextRid = BASE_RID-1;
4442         }
4443
4444         nextRid += 1;
4445
4446         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4447                          talloc_asprintf(mem_ctx, "%d", nextRid));
4448         talloc_autofree_ldapmod(mem_ctx, mods);
4449
4450         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4451                 status = NT_STATUS_NO_MEMORY;
4452                 goto done;
4453         }
4454
4455         rc = smbldap_modify(smbldap_state, dn, mods);
4456
4457         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4458          * please retry" */
4459
4460         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4461
4462  done:
4463         if (NT_STATUS_IS_OK(status)) {
4464                 *rid = nextRid;
4465         }
4466
4467         TALLOC_FREE(mem_ctx);
4468         return status;
4469 }
4470
4471 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4472 {
4473         int i;
4474
4475         for (i=0; i<10; i++) {
4476                 NTSTATUS result = ldapsam_get_new_rid(methods->private_data,
4477                                                       rid);
4478                 if (NT_STATUS_IS_OK(result)) {
4479                         return result;
4480                 }
4481
4482                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4483                         return result;
4484                 }
4485
4486                 /* The ldap update failed (maybe a race condition), retry */
4487         }
4488
4489         /* Tried 10 times, fail. */
4490         return NT_STATUS_ACCESS_DENIED;
4491 }
4492
4493 static BOOL ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4494 {
4495         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4496         return NT_STATUS_IS_OK(result) ? True : False;
4497 }
4498
4499 static BOOL ldapsam_sid_to_id(struct pdb_methods *methods,
4500                               const DOM_SID *sid,
4501                               union unid_t *id, enum SID_NAME_USE *type)
4502 {
4503         struct ldapsam_privates *priv = methods->private_data;
4504         char *filter;
4505         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4506                                 NULL };
4507         LDAPMessage *result = NULL;
4508         LDAPMessage *entry = NULL;
4509         BOOL ret = False;
4510         char *value;
4511         int rc;
4512
4513         TALLOC_CTX *mem_ctx;
4514
4515         mem_ctx = talloc_new(NULL);
4516         if (mem_ctx == NULL) {
4517                 DEBUG(0, ("talloc_new failed\n"));
4518                 return False;
4519         }
4520
4521         filter = talloc_asprintf(mem_ctx,
4522                                  "(&(sambaSid=%s)"
4523                                  "(|(objectClass=%s)(objectClass=%s)))",
4524                                  sid_string_static(sid),
4525                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4526         if (filter == NULL) {
4527                 DEBUG(5, ("talloc_asprintf failed\n"));
4528                 goto done;
4529         }
4530
4531         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4532                                    attrs, &result);
4533         if (rc != LDAP_SUCCESS) {
4534                 goto done;
4535         }
4536         talloc_autofree_ldapmsg(mem_ctx, result);
4537
4538         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4539                 DEBUG(10, ("Got %d entries, expected one\n",
4540                            ldap_count_entries(priv2ld(priv), result)));
4541                 goto done;
4542         }
4543
4544         entry = ldap_first_entry(priv2ld(priv), result);
4545
4546         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4547                                                 "sambaGroupType", mem_ctx);
4548
4549         if (value != NULL) {
4550                 const char *gid_str;
4551                 /* It's a group */
4552
4553                 gid_str = smbldap_talloc_single_attribute(
4554                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4555                 if (gid_str == NULL) {
4556                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4557                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4558                                                     entry)));
4559                         goto done;
4560                 }
4561
4562                 id->gid = strtoul(gid_str, NULL, 10);
4563                 *type = (enum SID_NAME_USE)strtoul(value, NULL, 10);
4564                 ret = True;
4565                 goto done;
4566         }
4567
4568         /* It must be a user */
4569
4570         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4571                                                 "uidNumber", mem_ctx);
4572         if (value == NULL) {
4573                 DEBUG(1, ("Could not find uidNumber in %s\n",
4574                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4575                 goto done;
4576         }
4577
4578         id->uid = strtoul(value, NULL, 10);
4579         *type = SID_NAME_USER;
4580
4581         ret = True;
4582  done:
4583         TALLOC_FREE(mem_ctx);
4584         return ret;
4585 }
4586
4587 /*
4588  * The following functions is called only if
4589  * ldapsam:trusted and ldapsam:editposix are
4590  * set to true
4591  */
4592
4593 /*
4594  * ldapsam_create_user creates a new
4595  * posixAccount and sambaSamAccount object
4596  * in the ldap users subtree
4597  *
4598  * The uid is allocated by winbindd.
4599  */
4600
4601 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
4602                                     TALLOC_CTX *tmp_ctx, const char *name,
4603                                     uint32 acb_info, uint32 *rid)
4604 {
4605         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4606         LDAPMessage *entry = NULL;
4607         LDAPMessage *result = NULL;
4608         uint32 num_result;
4609         BOOL is_machine = False;
4610         BOOL add_posix = False;
4611         LDAPMod **mods = NULL;
4612         struct samu *user;
4613         char *filter;
4614         char *username;
4615         char *homedir;
4616         char *gidstr;
4617         char *uidstr;
4618         char *shell;
4619         const char *dn = NULL;
4620         DOM_SID group_sid;
4621         DOM_SID user_sid;
4622         gid_t gid = -1;
4623         uid_t uid = -1;
4624         NTSTATUS ret;
4625         int rc;
4626
4627         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
4628               acb_info & ACB_WSTRUST ||
4629               acb_info & ACB_SVRTRUST ||
4630               acb_info & ACB_DOMTRUST) {
4631                 is_machine = True;
4632         }
4633
4634         username = escape_ldap_string_alloc(name);
4635         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
4636                                  username, LDAP_OBJ_POSIXACCOUNT);
4637         SAFE_FREE(username);
4638
4639         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4640         if (rc != LDAP_SUCCESS) {
4641                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
4642                 return NT_STATUS_UNSUCCESSFUL;
4643         }
4644         talloc_autofree_ldapmsg(tmp_ctx, result);
4645
4646         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4647
4648         if (num_result > 1) {
4649                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
4650                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4651         }
4652
4653         if (num_result == 1) {
4654                 char *tmp;
4655                 /* check if it is just a posix account.
4656                  * or if there is a sid attached to this entry
4657                  */
4658
4659                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4660                 if (!entry) {
4661                         return NT_STATUS_UNSUCCESSFUL;
4662                 }
4663
4664                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
4665                 if (tmp) {
4666                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
4667                         return NT_STATUS_USER_EXISTS;
4668                 }
4669
4670                 /* it is just a posix account, retrieve the dn for later use */
4671                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4672                 if (!dn) {
4673                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
4674                         return NT_STATUS_NO_MEMORY;
4675                 }
4676         }
4677
4678         if (num_result == 0) {
4679                 add_posix = True;
4680         }
4681
4682         /* Create the basic samu structure and generate the mods for the ldap commit */
4683         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
4684                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
4685                 return ret;
4686         }
4687
4688         sid_compose(&user_sid, get_global_sam_sid(), *rid);
4689
4690         user = samu_new(tmp_ctx);
4691         if (!user) {
4692                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
4693                 return NT_STATUS_NO_MEMORY;
4694         }
4695
4696         if (!pdb_set_username(user, name, PDB_SET)) {
4697                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4698                 return NT_STATUS_UNSUCCESSFUL;
4699         }
4700         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
4701                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4702                 return NT_STATUS_UNSUCCESSFUL;
4703         }
4704         if (is_machine) {
4705                 if (acb_info & ACB_NORMAL) {
4706                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
4707                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4708                                 return NT_STATUS_UNSUCCESSFUL;
4709                         }
4710                 } else {
4711                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
4712                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4713                                 return NT_STATUS_UNSUCCESSFUL;
4714                         }
4715                 }
4716         } else {
4717                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
4718                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4719                         return NT_STATUS_UNSUCCESSFUL;
4720                 }
4721         }
4722
4723         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
4724                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4725                 return NT_STATUS_UNSUCCESSFUL;
4726         }
4727
4728         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
4729                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4730                 return NT_STATUS_UNSUCCESSFUL;
4731         }
4732
4733         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
4734                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
4735         }
4736         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
4737
4738         if (add_posix) {
4739                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
4740
4741                 /* retrieve the Domain Users group gid */
4742                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
4743                     !sid_to_gid(&group_sid, &gid)) {
4744                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
4745                         return NT_STATUS_INVALID_PRIMARY_GROUP;
4746                 }
4747
4748                 /* lets allocate a new userid for this user */
4749                 if (!winbind_allocate_uid(&uid)) {
4750                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
4751                         return NT_STATUS_UNSUCCESSFUL;
4752                 }
4753
4754
4755                 if (is_machine) {
4756                         /* TODO: choose a more appropriate default for machines */
4757                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
4758                         shell = talloc_strdup(tmp_ctx, "/bin/false");
4759                 } else {
4760                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
4761                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
4762                 }
4763                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
4764                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
4765                 if (is_machine) {
4766                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_machine_suffix ());
4767                 } else {
4768                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_user_suffix ());
4769                 }
4770
4771                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
4772                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
4773                         return NT_STATUS_NO_MEMORY;
4774                 }
4775
4776                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
4777                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
4778                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
4779                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
4780                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
4781                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
4782                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
4783         }
4784
4785         talloc_autofree_ldapmod(tmp_ctx, mods);
4786
4787         if (add_posix) {
4788                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
4789         } else {
4790                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
4791         }
4792
4793         if (rc != LDAP_SUCCESS) {
4794                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
4795                 return NT_STATUS_UNSUCCESSFUL;
4796         }
4797
4798         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
4799
4800         flush_pwnam_cache();
4801
4802         return NT_STATUS_OK;
4803 }
4804
4805 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
4806 {
4807         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4808         LDAPMessage *result = NULL;
4809         LDAPMessage *entry = NULL;
4810         int num_result;
4811         const char *dn;
4812         char *filter;
4813         int rc;
4814
4815         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
4816
4817         filter = talloc_asprintf(tmp_ctx,
4818                                  "(&(uid=%s)"
4819                                  "(objectClass=%s)"
4820                                  "(objectClass=%s))",
4821                                  pdb_get_username(sam_acct),
4822                                  LDAP_OBJ_POSIXACCOUNT,
4823                                  LDAP_OBJ_SAMBASAMACCOUNT);
4824         if (filter == NULL) {
4825                 return NT_STATUS_NO_MEMORY;
4826         }
4827
4828         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4829         if (rc != LDAP_SUCCESS) {
4830                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
4831                 return NT_STATUS_UNSUCCESSFUL;
4832         }
4833         talloc_autofree_ldapmsg(tmp_ctx, result);
4834
4835         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4836
4837         if (num_result == 0) {
4838                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
4839                 return NT_STATUS_NO_SUCH_USER;
4840         }
4841
4842         if (num_result > 1) {
4843                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
4844                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4845         }
4846
4847         entry = ldap_first_entry(priv2ld(ldap_state), result);
4848         if (!entry) {
4849                 return NT_STATUS_UNSUCCESSFUL;
4850         }
4851
4852         /* it is just a posix account, retrieve the dn for later use */
4853         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4854         if (!dn) {
4855                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
4856                 return NT_STATUS_NO_MEMORY;
4857         }
4858
4859         rc = smbldap_delete(ldap_state->smbldap_state, dn);
4860         if (rc != LDAP_SUCCESS) {
4861                 return NT_STATUS_UNSUCCESSFUL;
4862         }
4863
4864         flush_pwnam_cache();
4865
4866         return NT_STATUS_OK;
4867 }
4868
4869 /*
4870  * ldapsam_create_group creates a new
4871  * posixGroup and sambaGroupMapping object
4872  * in the ldap groups subtree
4873  *
4874  * The gid is allocated by winbindd.
4875  */
4876
4877 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
4878                                          TALLOC_CTX *tmp_ctx,
4879                                          const char *name,
4880                                          uint32 *rid)
4881 {
4882         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4883         NTSTATUS ret;
4884         LDAPMessage *entry = NULL;
4885         LDAPMessage *result = NULL;
4886         uint32 num_result;
4887         BOOL is_new_entry = False;
4888         LDAPMod **mods = NULL;
4889         char *filter;
4890         char *groupsidstr;
4891         char *groupname;
4892         char *grouptype;
4893         char *gidstr;
4894         const char *dn = NULL;
4895         DOM_SID group_sid;
4896         gid_t gid = -1;
4897         int rc;
4898
4899         groupname = escape_ldap_string_alloc(name);
4900         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
4901                                  groupname, LDAP_OBJ_POSIXGROUP);
4902         SAFE_FREE(groupname);
4903
4904         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4905         if (rc != LDAP_SUCCESS) {
4906                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
4907                 return NT_STATUS_UNSUCCESSFUL;
4908         }
4909         talloc_autofree_ldapmsg(tmp_ctx, result);
4910
4911         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4912
4913         if (num_result > 1) {
4914                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
4915                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4916         }
4917
4918         if (num_result == 1) {
4919                 char *tmp;
4920                 /* check if it is just a posix group.
4921                  * or if there is a sid attached to this entry
4922                  */
4923
4924                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4925                 if (!entry) {
4926                         return NT_STATUS_UNSUCCESSFUL;
4927                 }
4928
4929                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
4930                 if (tmp) {
4931                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
4932                         return NT_STATUS_GROUP_EXISTS;
4933                 }
4934
4935                 /* it is just a posix group, retrieve the gid and the dn for later use */
4936                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
4937                 if (!tmp) {
4938                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
4939                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
4940                 }
4941
4942                 gid = strtoul(tmp, NULL, 10);
4943
4944                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4945                 if (!dn) {
4946                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
4947                         return NT_STATUS_NO_MEMORY;
4948                 }
4949         }
4950
4951         if (num_result == 0) {
4952                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
4953
4954                 is_new_entry = True;
4955
4956                 /* lets allocate a new groupid for this group */
4957                 if (!winbind_allocate_gid(&gid)) {
4958                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
4959                         return NT_STATUS_UNSUCCESSFUL;
4960                 }
4961
4962                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
4963                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", name, lp_ldap_group_suffix());
4964
4965                 if (!gidstr || !dn) {
4966                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
4967                         return NT_STATUS_NO_MEMORY;
4968                 }
4969
4970                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
4971                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
4972                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
4973         }
4974
4975         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
4976                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
4977                 return ret;
4978         }
4979
4980         sid_compose(&group_sid, get_global_sam_sid(), *rid);
4981
4982         groupsidstr = talloc_strdup(tmp_ctx, sid_string_static(&group_sid));
4983         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
4984
4985         if (!groupsidstr || !grouptype) {
4986                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
4987                 return NT_STATUS_NO_MEMORY;
4988         }
4989
4990         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
4991         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
4992         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
4993         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
4994         talloc_autofree_ldapmod(tmp_ctx, mods);
4995
4996         if (is_new_entry) {
4997                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
4998 #if 0
4999                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5000                         /* This call may fail with rfc2307bis schema */
5001                         /* Retry adding a structural class */
5002                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5003                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5004                 }
5005 #endif
5006         } else {
5007                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5008         }
5009
5010         if (rc != LDAP_SUCCESS) {
5011                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5012                 return NT_STATUS_UNSUCCESSFUL;
5013         }
5014
5015         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5016
5017         return NT_STATUS_OK;
5018 }
5019
5020 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5021 {
5022         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5023         LDAPMessage *result = NULL;
5024         LDAPMessage *entry = NULL;
5025         int num_result;
5026         const char *dn;
5027         char *gidstr;
5028         char *filter;
5029         DOM_SID group_sid;
5030         int rc;
5031
5032         /* get the group sid */
5033         sid_compose(&group_sid, get_global_sam_sid(), rid);
5034
5035         filter = talloc_asprintf(tmp_ctx,
5036                                  "(&(sambaSID=%s)"
5037                                  "(objectClass=%s)"
5038                                  "(objectClass=%s))",
5039                                  sid_string_static(&group_sid),
5040                                  LDAP_OBJ_POSIXGROUP,
5041                                  LDAP_OBJ_GROUPMAP);
5042         if (filter == NULL) {
5043                 return NT_STATUS_NO_MEMORY;
5044         }
5045
5046         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5047         if (rc != LDAP_SUCCESS) {
5048                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5049                 return NT_STATUS_UNSUCCESSFUL;
5050         }
5051         talloc_autofree_ldapmsg(tmp_ctx, result);
5052
5053         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5054
5055         if (num_result == 0) {
5056                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5057                 return NT_STATUS_NO_SUCH_GROUP;
5058         }
5059
5060         if (num_result > 1) {
5061                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5062                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5063         }
5064
5065         entry = ldap_first_entry(priv2ld(ldap_state), result);
5066         if (!entry) {
5067                 return NT_STATUS_UNSUCCESSFUL;
5068         }
5069
5070         /* here it is, retrieve the dn for later use */
5071         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5072         if (!dn) {
5073                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5074                 return NT_STATUS_NO_MEMORY;
5075         }
5076
5077         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5078         if (!gidstr) {
5079                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5080                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5081         }
5082
5083         /* check no user have this group marked as primary group */
5084         filter = talloc_asprintf(tmp_ctx,
5085                                  "(&(gidNumber=%s)"
5086                                  "(objectClass=%s)"
5087                                  "(objectClass=%s))",
5088                                  gidstr,
5089                                  LDAP_OBJ_POSIXACCOUNT,
5090                                  LDAP_OBJ_SAMBASAMACCOUNT);
5091
5092         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5093         if (rc != LDAP_SUCCESS) {
5094                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5095                 return NT_STATUS_UNSUCCESSFUL;
5096         }
5097         talloc_autofree_ldapmsg(tmp_ctx, result);
5098
5099         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5100
5101         if (num_result != 0) {
5102                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5103                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5104         }
5105
5106         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5107         if (rc != LDAP_SUCCESS) {
5108                 return NT_STATUS_UNSUCCESSFUL;
5109         }
5110
5111         return NT_STATUS_OK;
5112 }
5113
5114 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5115                                         TALLOC_CTX *tmp_ctx,
5116                                         uint32 group_rid,
5117                                         uint32 member_rid,
5118                                         int modop)
5119 {
5120         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5121         LDAPMessage *entry = NULL;
5122         LDAPMessage *result = NULL;
5123         uint32 num_result;
5124         LDAPMod **mods = NULL;
5125         char *filter;
5126         char *uidstr;
5127         const char *dn = NULL;
5128         DOM_SID group_sid;
5129         DOM_SID member_sid;
5130         int rc;
5131
5132         switch (modop) {
5133         case LDAP_MOD_ADD:
5134                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5135                 break;
5136         case LDAP_MOD_DELETE:
5137                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5138                 break;
5139         default:
5140                 return NT_STATUS_UNSUCCESSFUL;
5141         }
5142
5143         /* get member sid  */
5144         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5145
5146         /* get the group sid */
5147         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5148
5149         filter = talloc_asprintf(tmp_ctx,
5150                                  "(&(sambaSID=%s)"
5151                                  "(objectClass=%s)"
5152                                  "(objectClass=%s))",
5153                                  sid_string_static(&member_sid),
5154                                  LDAP_OBJ_POSIXACCOUNT,
5155                                  LDAP_OBJ_SAMBASAMACCOUNT);
5156         if (filter == NULL) {
5157                 return NT_STATUS_NO_MEMORY;
5158         }
5159
5160         /* get the member uid */
5161         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5162         if (rc != LDAP_SUCCESS) {
5163                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5164                 return NT_STATUS_UNSUCCESSFUL;
5165         }
5166         talloc_autofree_ldapmsg(tmp_ctx, result);
5167
5168         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5169
5170         if (num_result == 0) {
5171                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5172                 return NT_STATUS_NO_SUCH_MEMBER;
5173         }
5174
5175         if (num_result > 1) {
5176                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5177                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5178         }
5179
5180         entry = ldap_first_entry(priv2ld(ldap_state), result);
5181         if (!entry) {
5182                 return NT_STATUS_UNSUCCESSFUL;
5183         }
5184
5185         if (modop == LDAP_MOD_DELETE) {
5186                 /* check if we are trying to remove the member from his primary group */
5187                 char *gidstr;
5188                 gid_t user_gid, group_gid;
5189
5190                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5191                 if (!gidstr) {
5192                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5193                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5194                 }
5195
5196                 user_gid = strtoul(gidstr, NULL, 10);
5197
5198                 if (!sid_to_gid(&group_sid, &group_gid)) {
5199                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5200                         return NT_STATUS_UNSUCCESSFUL;
5201                 }
5202
5203                 if (user_gid == group_gid) {
5204                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from it's own primary group!\n"));
5205                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5206                 }
5207         }
5208
5209         /* here it is, retrieve the uid for later use */
5210         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5211         if (!uidstr) {
5212                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5213                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5214         }
5215
5216         filter = talloc_asprintf(tmp_ctx,
5217                                  "(&(sambaSID=%s)"
5218                                  "(objectClass=%s)"
5219                                  "(objectClass=%s))",
5220                                  sid_string_static(&group_sid),
5221                                  LDAP_OBJ_POSIXGROUP,
5222                                  LDAP_OBJ_GROUPMAP);
5223
5224         /* get the group */
5225         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5226         if (rc != LDAP_SUCCESS) {
5227                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5228                 return NT_STATUS_UNSUCCESSFUL;
5229         }
5230         talloc_autofree_ldapmsg(tmp_ctx, result);
5231
5232         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5233
5234         if (num_result == 0) {
5235                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5236                 return NT_STATUS_NO_SUCH_GROUP;
5237         }
5238
5239         if (num_result > 1) {
5240                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5241                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5242         }
5243
5244         entry = ldap_first_entry(priv2ld(ldap_state), result);
5245         if (!entry) {
5246                 return NT_STATUS_UNSUCCESSFUL;
5247         }
5248
5249         /* here it is, retrieve the dn for later use */
5250         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5251         if (!dn) {
5252                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5253                 return NT_STATUS_NO_MEMORY;
5254         }
5255
5256         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5257
5258         talloc_autofree_ldapmod(tmp_ctx, mods);
5259
5260         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5261         if (rc != LDAP_SUCCESS) {
5262                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5263                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5264                         return NT_STATUS_MEMBER_IN_GROUP;
5265                 }
5266                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5267                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5268                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5269                 }
5270                 return NT_STATUS_UNSUCCESSFUL;
5271         }
5272
5273         return NT_STATUS_OK;
5274 }
5275
5276 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5277                                      TALLOC_CTX *tmp_ctx,
5278                                      uint32 group_rid,
5279                                      uint32 member_rid)
5280 {
5281         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5282 }
5283 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5284                                      TALLOC_CTX *tmp_ctx,
5285                                      uint32 group_rid,
5286                                      uint32 member_rid)
5287 {
5288         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5289 }
5290
5291 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5292                                           TALLOC_CTX *mem_ctx,
5293                                           struct samu *sampass)
5294 {
5295         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5296         LDAPMessage *entry = NULL;
5297         LDAPMessage *result = NULL;
5298         uint32 num_result;
5299         LDAPMod **mods = NULL;
5300         char *filter;
5301         char *gidstr;
5302         const char *dn = NULL;
5303         gid_t gid;
5304         int rc;
5305
5306         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5307
5308         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5309                 DEBUG(0,("ldapsam_set_primary_group: failed to retieve gid from user's group SID!\n"));
5310                 return NT_STATUS_UNSUCCESSFUL;
5311         }
5312         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5313         if (!gidstr) {
5314                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5315                 return NT_STATUS_NO_MEMORY;
5316         }
5317
5318         filter = talloc_asprintf(mem_ctx,
5319                                  "(&(uid=%s)"
5320                                  "(objectClass=%s)"
5321                                  "(objectClass=%s))",
5322                                  pdb_get_username(sampass),
5323                                  LDAP_OBJ_POSIXACCOUNT,
5324                                  LDAP_OBJ_SAMBASAMACCOUNT);
5325         if (filter == NULL) {
5326                 return NT_STATUS_NO_MEMORY;
5327         }
5328
5329         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5330         if (rc != LDAP_SUCCESS) {
5331                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5332                 return NT_STATUS_UNSUCCESSFUL;
5333         }
5334         talloc_autofree_ldapmsg(mem_ctx, result);
5335
5336         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5337
5338         if (num_result == 0) {
5339                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5340                 return NT_STATUS_NO_SUCH_USER;
5341         }
5342
5343         if (num_result > 1) {
5344                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5345                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5346         }
5347
5348         entry = ldap_first_entry(priv2ld(ldap_state), result);
5349         if (!entry) {
5350                 return NT_STATUS_UNSUCCESSFUL;
5351         }
5352
5353         /* retrieve the dn for later use */
5354         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5355         if (!dn) {
5356                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5357                 return NT_STATUS_NO_MEMORY;
5358         }
5359
5360         /* remove the old one, and add the new one, this way we do not risk races */
5361         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5362
5363         if (mods == NULL) {
5364                 return NT_STATUS_OK;
5365         }
5366
5367         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5368
5369         if (rc != LDAP_SUCCESS) {
5370                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5371                          pdb_get_username(sampass), gidstr));
5372                 return NT_STATUS_UNSUCCESSFUL;
5373         }
5374
5375         flush_pwnam_cache();
5376
5377         return NT_STATUS_OK;
5378 }
5379
5380 /**********************************************************************
5381  Housekeeping
5382  *********************************************************************/
5383
5384 static void free_private_data(void **vp)
5385 {
5386         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
5387
5388         smbldap_free_struct(&(*ldap_state)->smbldap_state);
5389
5390         if ((*ldap_state)->result != NULL) {
5391                 ldap_msgfree((*ldap_state)->result);
5392                 (*ldap_state)->result = NULL;
5393         }
5394         if ((*ldap_state)->domain_dn != NULL) {
5395                 SAFE_FREE((*ldap_state)->domain_dn);
5396         }
5397
5398         *ldap_state = NULL;
5399
5400         /* No need to free any further, as it is talloc()ed */
5401 }
5402
5403 /*********************************************************************
5404  Intitalise the parts of the pdb_methods structure that are common to
5405  all pdb_ldap modes
5406 *********************************************************************/
5407
5408 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
5409 {
5410         NTSTATUS nt_status;
5411         struct ldapsam_privates *ldap_state;
5412
5413         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
5414                 return nt_status;
5415         }
5416
5417         (*pdb_method)->name = "ldapsam";
5418
5419         (*pdb_method)->setsampwent = ldapsam_setsampwent;
5420         (*pdb_method)->endsampwent = ldapsam_endsampwent;
5421         (*pdb_method)->getsampwent = ldapsam_getsampwent;
5422         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
5423         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
5424         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
5425         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
5426         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
5427         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
5428
5429         (*pdb_method)->getgrsid = ldapsam_getgrsid;
5430         (*pdb_method)->getgrgid = ldapsam_getgrgid;
5431         (*pdb_method)->getgrnam = ldapsam_getgrnam;
5432         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
5433         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
5434         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
5435         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
5436
5437         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
5438         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
5439
5440         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
5441
5442         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
5443         (*pdb_method)->new_rid = ldapsam_new_rid;
5444
5445         /* TODO: Setup private data and free */
5446
5447         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
5448                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
5449                 return NT_STATUS_NO_MEMORY;
5450         }
5451
5452         nt_status = smbldap_init(*pdb_method, location, &ldap_state->smbldap_state);
5453
5454         if ( !NT_STATUS_IS_OK(nt_status) ) {
5455                 return nt_status;
5456         }
5457
5458         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
5459                 return NT_STATUS_NO_MEMORY;
5460         }
5461
5462         (*pdb_method)->private_data = ldap_state;
5463
5464         (*pdb_method)->free_private_data = free_private_data;
5465
5466         return NT_STATUS_OK;
5467 }
5468
5469 /**********************************************************************
5470  Initialise the 'compat' mode for pdb_ldap
5471  *********************************************************************/
5472
5473 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
5474 {
5475         NTSTATUS nt_status;
5476         struct ldapsam_privates *ldap_state;
5477         char *uri = talloc_strdup( NULL, location );
5478
5479         if (!NT_STATUS_IS_OK(nt_status = pdb_init_ldapsam_common( pdb_method, uri ))) {
5480                 return nt_status;
5481         }
5482
5483         /* the module itself stores a copy of the location so throw this one away */
5484
5485         if ( uri )
5486                 TALLOC_FREE( uri );
5487
5488         (*pdb_method)->name = "ldapsam_compat";
5489
5490         ldap_state = (*pdb_method)->private_data;
5491         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
5492
5493         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5494
5495         return NT_STATUS_OK;
5496 }
5497
5498 /**********************************************************************
5499  Initialise the normal mode for pdb_ldap
5500  *********************************************************************/
5501
5502 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
5503 {
5504         NTSTATUS nt_status;
5505         struct ldapsam_privates *ldap_state;
5506         uint32 alg_rid_base;
5507         pstring alg_rid_base_string;
5508         LDAPMessage *result = NULL;
5509         LDAPMessage *entry = NULL;
5510         DOM_SID ldap_domain_sid;
5511         DOM_SID secrets_domain_sid;
5512         pstring domain_sid_string;
5513         char *dn;
5514
5515         nt_status = pdb_init_ldapsam_common(pdb_method, location);
5516         if (!NT_STATUS_IS_OK(nt_status)) {
5517                 return nt_status;
5518         }
5519
5520         (*pdb_method)->name = "ldapsam";
5521
5522         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
5523         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
5524         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
5525         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
5526         (*pdb_method)->search_users = ldapsam_search_users;
5527         (*pdb_method)->search_groups = ldapsam_search_groups;
5528         (*pdb_method)->search_aliases = ldapsam_search_aliases;
5529
5530         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
5531                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
5532                 (*pdb_method)->enum_group_memberships =
5533                         ldapsam_enum_group_memberships;
5534                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
5535                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
5536
5537                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
5538                         (*pdb_method)->create_user = ldapsam_create_user;
5539                         (*pdb_method)->delete_user = ldapsam_delete_user;
5540                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
5541                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
5542                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
5543                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
5544                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
5545                 }
5546         }
5547
5548         ldap_state = (*pdb_method)->private_data;
5549         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
5550
5551         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
5552
5553         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
5554                                                &result,
5555                                                ldap_state->domain_name, True);
5556
5557         if ( !NT_STATUS_IS_OK(nt_status) ) {
5558                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
5559                           "info, nor add one to the domain\n"));
5560                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
5561                              "will be unable to allocate new users/groups, "
5562                              "and will risk BDCs having inconsistant SIDs\n"));
5563                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5564                 return NT_STATUS_OK;
5565         }
5566
5567         /* Given that the above might fail, everything below this must be
5568          * optional */
5569
5570         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
5571                                  result);
5572         if (!entry) {
5573                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
5574                           "entry\n"));
5575                 ldap_msgfree(result);
5576                 return NT_STATUS_UNSUCCESSFUL;
5577         }
5578
5579         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
5580         if (!dn) {
5581                 return NT_STATUS_UNSUCCESSFUL;
5582         }
5583
5584         ldap_state->domain_dn = smb_xstrdup(dn);
5585         ldap_memfree(dn);
5586
5587         if (smbldap_get_single_pstring(
5588                     ldap_state->smbldap_state->ldap_struct,
5589                     entry,
5590                     get_userattr_key2string(ldap_state->schema_ver,
5591                                             LDAP_ATTR_USER_SID),
5592                     domain_sid_string)) {
5593                 BOOL found_sid;
5594                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
5595                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
5596                                   "read as a valid SID\n", domain_sid_string));
5597                         return NT_STATUS_INVALID_PARAMETER;
5598                 }
5599                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
5600                                                      &secrets_domain_sid);
5601                 if (!found_sid || !sid_equal(&secrets_domain_sid,
5602                                              &ldap_domain_sid)) {
5603                         fstring new_sid_str, old_sid_str;
5604                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
5605                                   "%s based on pdb_ldap results %s -> %s\n",
5606                                   ldap_state->domain_name,
5607                                   sid_to_string(old_sid_str,
5608                                                 &secrets_domain_sid),
5609                                   sid_to_string(new_sid_str,
5610                                                 &ldap_domain_sid)));
5611
5612                         /* reset secrets.tdb sid */
5613                         secrets_store_domain_sid(ldap_state->domain_name,
5614                                                  &ldap_domain_sid);
5615                         DEBUG(1, ("New global sam SID: %s\n",
5616                                   sid_to_string(new_sid_str,
5617                                                 get_global_sam_sid())));
5618                 }
5619                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
5620         }
5621
5622         if (smbldap_get_single_pstring(
5623                     ldap_state->smbldap_state->ldap_struct,
5624                     entry,
5625                     get_attr_key2string( dominfo_attr_list,
5626                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
5627                     alg_rid_base_string)) {
5628                 alg_rid_base = (uint32)atol(alg_rid_base_string);
5629                 if (alg_rid_base != algorithmic_rid_base()) {
5630                         DEBUG(0, ("The value of 'algorithmic RID base' has "
5631                                   "changed since the LDAP\n"
5632                                   "database was initialised.  Aborting. \n"));
5633                         ldap_msgfree(result);
5634                         return NT_STATUS_UNSUCCESSFUL;
5635                 }
5636         }
5637         ldap_msgfree(result);
5638
5639         return NT_STATUS_OK;
5640 }
5641
5642 NTSTATUS pdb_ldap_init(void)
5643 {
5644         NTSTATUS nt_status;
5645         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
5646                 return nt_status;
5647
5648         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
5649                 return nt_status;
5650
5651         /* Let pdb_nds register backends */
5652         pdb_nds_init();
5653
5654         return NT_STATUS_OK;
5655 }