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, domain,
 654                                          lp_logon_home()),
 655                         PDB_DEFAULT );
 656         } else {
 657                 pstrcpy( tmpstring, homedir );
 658                 if (expand_explicit) {
 659                         standard_sub_basic( username, domain, tmpstring,
 660                                             sizeof(tmpstring) );
 661                 }
 662                 pdb_set_homedir(sampass, tmpstring, PDB_SET);
 663         }
 664
 665         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 666                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT), logon_script))
 667         {
 668                 pdb_set_logon_script( sampass,
 669                         talloc_sub_basic(sampass, username, domain,
 670                                          lp_logon_script()),
 671                         PDB_DEFAULT );
 672         } else {
 673                 pstrcpy( tmpstring, logon_script );
 674                 if (expand_explicit) {
 675                         standard_sub_basic( username, domain, tmpstring,
 676                                             sizeof(tmpstring) );
 677                 }
 678                 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
 679         }
 680
 681         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 682                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH), profile_path))
 683         {
 684                 pdb_set_profile_path( sampass,
 685                         talloc_sub_basic( sampass, username, domain,
 686                                           lp_logon_path()),
 687                         PDB_DEFAULT );
 688         } else {
 689                 pstrcpy( tmpstring, profile_path );
 690                 if (expand_explicit) {
 691                         standard_sub_basic( username, domain, tmpstring,
 692                                             sizeof(tmpstring) );
 693                 }
 694                 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
 695         }
 696
 697         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 698                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC), acct_desc))
 699         {
 700                 /* leave as default */
 701         } else {
 702                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 703         }
 704
 705         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 706                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS), workstations)) {
 707                 /* leave as default */;
 708         } else {
 709                 pdb_set_workstations(sampass, workstations, PDB_SET);
 710         }
 711
 712         if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 713                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL), munged_dial, sizeof(munged_dial))) {
 714                 /* leave as default */;
 715         } else {
 716                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 717         }
 718
 719         /* FIXME: hours stuff should be cleaner */
 720
 721         logon_divs = 168;
 722         hours_len = 21;
 723         memset(hours, 0xff, hours_len);
 724
 725         if (ldap_state->is_nds_ldap) {
 726                 char *user_dn;
 727                 size_t pwd_len;
 728                 char clear_text_pw[512];
 729
 730                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 731                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 732                 user_dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
 733                 if (user_dn != NULL) {
 734                         DEBUG(3, ("init_sam_from_ldap: smbldap_get_dn(%s) returned '%s'\n", username, user_dn));
 735
 736                         pwd_len = sizeof(clear_text_pw);
 737                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 738                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 739                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 740                                         SAFE_FREE(user_dn);
 741                                         return False;
 742                                 }
 743                                 ZERO_STRUCT(smblmpwd);
 744                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 745                                         SAFE_FREE(user_dn);
 746                                         return False;
 747                                 }
 748                                 ZERO_STRUCT(smbntpwd);
 749                                 use_samba_attrs = False;
 750                         }
 751
 752                         SAFE_FREE(user_dn);
 753
 754                 } else {
 755                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 756                 }
 757         }
 758
 759         if (use_samba_attrs) {
 760                 if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 761                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW), temp)) {
 762                         /* leave as default */
 763                 } else {
 764                         pdb_gethexpwd(temp, smblmpwd);
 765                         memset((char *)temp, '\0', strlen(temp)+1);
 766                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET))
 767                                 return False;
 768                         ZERO_STRUCT(smblmpwd);
 769                 }
 770
 771                 if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 772                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW), temp)) {
 773                         /* leave as default */
 774                 } else {
 775                         pdb_gethexpwd(temp, smbntpwd);
 776                         memset((char *)temp, '\0', strlen(temp)+1);
 777                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET))
 778                                 return False;
 779                         ZERO_STRUCT(smbntpwd);
 780                 }
 781         }
 782
 783         pwHistLen = 0;
 784
 785         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
 786         if (pwHistLen > 0){
 787                 uint8 *pwhist = NULL;
 788                 int i;
 789                 char history_string[MAX_PW_HISTORY_LEN*64];
 790
 791                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 792
 793                 if ((pwhist = SMB_MALLOC_ARRAY(uint8, pwHistLen * PW_HISTORY_ENTRY_LEN)) == NULL){
 794                         DEBUG(0, ("init_sam_from_ldap: malloc failed!\n"));
 795                         return False;
 796                 }
 797                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 798
 799                 if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 800                                                   get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
 801                                                   history_string, sizeof(history_string))) {
 802                         /* leave as default - zeros */
 803                 } else {
 804                         BOOL hex_failed = False;
 805                         for (i = 0; i < pwHistLen; i++){
 806                                 /* Get the 16 byte salt. */
 807                                 if (!pdb_gethexpwd(&history_string[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 808                                         hex_failed = True;
 809                                         break;
 810                                 }
 811                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 812                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 813                                                 &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN])) {
 814                                         hex_failed = True;
 815                                         break;
 816                                 }
 817                         }
 818                         if (hex_failed) {
 819                                 DEBUG(0,("init_sam_from_ldap: Failed to get password history for user %s\n",
 820                                         username));
 821                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 822                         }
 823                 }
 824                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 825                         SAFE_FREE(pwhist);
 826                         return False;
 827                 }
 828                 SAFE_FREE(pwhist);
 829         }
 830
 831         if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 832                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO), temp)) {
 833                 acct_ctrl |= ACB_NORMAL;
 834         } else {
 835                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 836
 837                 if (acct_ctrl == 0)
 838                         acct_ctrl |= ACB_NORMAL;
 839
 840                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 841         }
 842
 843         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 844         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 845
 846         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 847                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_COUNT), temp)) {
 848                         /* leave as default */
 849         } else {
 850                 bad_password_count = (uint32) atol(temp);
 851                 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
 852         }
 853
 854         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 855                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_TIME), temp)) {
 856                 /* leave as default */
 857         } else {
 858                 bad_password_time = (time_t) atol(temp);
 859                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
 860         }
 861
 862
 863         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 864                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_COUNT), temp)) {
 865                         /* leave as default */
 866         } else {
 867                 logon_count = (uint32) atol(temp);
 868                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
 869         }
 870
 871         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
 872
 873         if(!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 874                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_HOURS), temp)) {
 875                         /* leave as default */
 876         } else {
 877                 pdb_gethexhours(temp, hours);
 878                 memset((char *)temp, '\0', strlen(temp) +1);
 879                 pdb_set_hours(sampass, hours, PDB_SET);
 880                 ZERO_STRUCT(hours);
 881         }
 882
 883         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
 884                 if (smbldap_get_single_pstring(priv2ld(ldap_state), entry,
 885                                                "uidNumber", temp)) {
 886                         /* We've got a uid, feed the cache */
 887                         uid_t uid = strtoul(temp, NULL, 10);
 888                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
 889                 }
 890         }
 891
 892         /* check the timestamp of the cache vs ldap entry */
 893         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
 894                                                             entry)))
 895                 return True;
 896
 897         /* see if we have newer updates */
 898         if (!(cache_entry = login_cache_read(sampass))) {
 899                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
 900                            (unsigned int)pdb_get_bad_password_count(sampass),
 901                            (unsigned int)pdb_get_bad_password_time(sampass)));
 902                 return True;
 903         }
 904
 905         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
 906                   (unsigned int)ldap_entry_time, (unsigned int)cache_entry->entry_timestamp,
 907                   (unsigned int)cache_entry->bad_password_time));
 908
 909         if (ldap_entry_time > cache_entry->entry_timestamp) {
 910                 /* cache is older than directory , so
 911                    we need to delete the entry but allow the
 912                    fields to be written out */
 913                 login_cache_delentry(sampass);
 914         } else {
 915                 /* read cache in */
 916                 pdb_set_acct_ctrl(sampass,
 917                                   pdb_get_acct_ctrl(sampass) |
 918                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
 919                                   PDB_SET);
 920                 pdb_set_bad_password_count(sampass,
 921                                            cache_entry->bad_password_count,
 922                                            PDB_SET);
 923                 pdb_set_bad_password_time(sampass,
 924                                           cache_entry->bad_password_time,
 925                                           PDB_SET);
 926         }
 927
 928         SAFE_FREE(cache_entry);
 929         return True;
 930 }
 931
 932 /**********************************************************************
 933  Initialize the ldap db from a struct samu. Called on update.
 934  (Based on init_buffer_from_sam in pdb_tdb.c)
 935 *********************************************************************/
 936
 937 static BOOL init_ldap_from_sam (struct ldapsam_privates *ldap_state,
 938                                 LDAPMessage *existing,
 939                                 LDAPMod *** mods, struct samu * sampass,
 940                                 BOOL (*need_update)(const struct samu *,
 941                                                     enum pdb_elements))
 942 {
 943         pstring temp;
 944         uint32 rid;
 945
 946         if (mods == NULL || sampass == NULL) {
 947                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
 948                 return False;
 949         }
 950
 951         *mods = NULL;
 952
 953         /*
 954          * took out adding "objectclass: sambaAccount"
 955          * do this on a per-mod basis
 956          */
 957         if (need_update(sampass, PDB_USERNAME)) {
 958                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 959                               "uid", pdb_get_username(sampass));
 960                 if (ldap_state->is_nds_ldap) {
 961                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 962                                       "cn", pdb_get_username(sampass));
 963                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 964                                       "sn", pdb_get_username(sampass));
 965                 }
 966         }
 967
 968         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
 969
 970         /* only update the RID if we actually need to */
 971         if (need_update(sampass, PDB_USERSID)) {
 972                 fstring sid_string;
 973                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
 974
 975                 switch ( ldap_state->schema_ver ) {
 976                         case SCHEMAVER_SAMBAACCOUNT:
 977                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
 978                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
 979                                                   sid_string_static(user_sid),
 980                                                   sid_string_static(&ldap_state->domain_sid)));
 981                                         return False;
 982                                 }
 983                                 slprintf(temp, sizeof(temp) - 1, "%i", rid);
 984                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 985                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
 986                                         temp);
 987                                 break;
 988
 989                         case SCHEMAVER_SAMBASAMACCOUNT:
 990                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 991                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
 992                                         sid_to_string(sid_string, user_sid));
 993                                 break;
 994
 995                         default:
 996                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
 997                                 break;
 998                 }
 999         }
1000
1001         /* we don't need to store the primary group RID - so leaving it
1002            'free' to hang off the unix primary group makes life easier */
1003
1004         if (need_update(sampass, PDB_GROUPSID)) {
1005                 fstring sid_string;
1006                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1007
1008                 switch ( ldap_state->schema_ver ) {
1009                         case SCHEMAVER_SAMBAACCOUNT:
1010                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1011                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1012                                                   sid_string_static(group_sid),
1013                                                   sid_string_static(&ldap_state->domain_sid)));
1014                                         return False;
1015                                 }
1016
1017                                 slprintf(temp, sizeof(temp) - 1, "%i", rid);
1018                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1019                                         get_userattr_key2string(ldap_state->schema_ver,
1020                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1021                                 break;
1022
1023                         case SCHEMAVER_SAMBASAMACCOUNT:
1024                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1025                                         get_userattr_key2string(ldap_state->schema_ver,
1026                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_string(sid_string, group_sid));
1027                                 break;
1028
1029                         default:
1030                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1031                                 break;
1032                 }
1033
1034         }
1035
1036         /* displayName, cn, and gecos should all be the same
1037          *  most easily accomplished by giving them the same OID
1038          *  gecos isn't set here b/c it should be handled by the
1039          *  add-user script
1040          *  We change displayName only and fall back to cn if
1041          *  it does not exist.
1042          */
1043
1044         if (need_update(sampass, PDB_FULLNAME))
1045                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1046                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1047                         pdb_get_fullname(sampass));
1048
1049         if (need_update(sampass, PDB_ACCTDESC))
1050                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1051                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1052                         pdb_get_acct_desc(sampass));
1053
1054         if (need_update(sampass, PDB_WORKSTATIONS))
1055                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1056                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1057                         pdb_get_workstations(sampass));
1058
1059         if (need_update(sampass, PDB_MUNGEDDIAL))
1060                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1061                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1062                         pdb_get_munged_dial(sampass));
1063
1064         if (need_update(sampass, PDB_SMBHOME))
1065                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1066                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1067                         pdb_get_homedir(sampass));
1068
1069         if (need_update(sampass, PDB_DRIVE))
1070                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1071                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1072                         pdb_get_dir_drive(sampass));
1073
1074         if (need_update(sampass, PDB_LOGONSCRIPT))
1075                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1076                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1077                         pdb_get_logon_script(sampass));
1078
1079         if (need_update(sampass, PDB_PROFILE))
1080                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1081                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1082                         pdb_get_profile_path(sampass));
1083
1084         slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logon_time(sampass));
1085         if (need_update(sampass, PDB_LOGONTIME))
1086                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1087                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1088
1089         slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logoff_time(sampass));
1090         if (need_update(sampass, PDB_LOGOFFTIME))
1091                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1092                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1093
1094         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_kickoff_time(sampass));
1095         if (need_update(sampass, PDB_KICKOFFTIME))
1096                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1097                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1098
1099         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_can_change_time_noncalc(sampass));
1100         if (need_update(sampass, PDB_CANCHANGETIME))
1101                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1102                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1103
1104         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_must_change_time(sampass));
1105         if (need_update(sampass, PDB_MUSTCHANGETIME))
1106                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1107                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1108
1109
1110         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1111                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1112
1113                 if (need_update(sampass, PDB_LMPASSWD)) {
1114                         const uchar *lm_pw =  pdb_get_lanman_passwd(sampass);
1115                         if (lm_pw) {
1116                                 pdb_sethexpwd(temp, lm_pw,
1117                                               pdb_get_acct_ctrl(sampass));
1118                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1119                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1120                                                  temp);
1121                         } else {
1122                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1123                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1124                                                  NULL);
1125                         }
1126                 }
1127                 if (need_update(sampass, PDB_NTPASSWD)) {
1128                         const uchar *nt_pw =  pdb_get_nt_passwd(sampass);
1129                         if (nt_pw) {
1130                                 pdb_sethexpwd(temp, nt_pw,
1131                                               pdb_get_acct_ctrl(sampass));
1132                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1133                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1134                                                  temp);
1135                         } else {
1136                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1137                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1138                                                  NULL);
1139                         }
1140                 }
1141
1142                 if (need_update(sampass, PDB_PWHISTORY)) {
1143                         uint32 pwHistLen = 0;
1144                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1145                         if (pwHistLen == 0) {
1146                                 /* Remove any password history from the LDAP store. */
1147                                 memset(temp, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1148                                 temp[64] = '\0';
1149                         } else {
1150                                 int i;
1151                                 uint32 currHistLen = 0;
1152                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1153                                 if (pwhist != NULL) {
1154                                         /* We can only store (sizeof(pstring)-1)/64 password history entries. */
1155                                         pwHistLen = MIN(pwHistLen, ((sizeof(temp)-1)/64));
1156                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1157                                                 /* Store the salt. */
1158                                                 pdb_sethexpwd(&temp[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1159                                                 /* Followed by the md5 hash of salt + md4 hash */
1160                                                 pdb_sethexpwd(&temp[(i*64)+32],
1161                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1162                                                 DEBUG(100, ("temp=%s\n", temp));
1163                                         }
1164                                 }
1165                         }
1166                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1167                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1168                                          temp);
1169                 }
1170
1171                 if (need_update(sampass, PDB_PASSLASTSET)) {
1172                         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_last_set_time(sampass));
1173                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1174                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1175                                 temp);
1176                 }
1177         }
1178
1179         if (need_update(sampass, PDB_HOURS)) {
1180                 const uint8 *hours = pdb_get_hours(sampass);
1181                 if (hours) {
1182                         pdb_sethexhours(temp, hours);
1183                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1184                                 existing,
1185                                 mods,
1186                                 get_userattr_key2string(ldap_state->schema_ver,
1187                                                 LDAP_ATTR_LOGON_HOURS),
1188                                 temp);
1189                 }
1190         }
1191
1192         if (need_update(sampass, PDB_ACCTCTRL))
1193                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1194                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1195                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1196
1197         /* password lockout cache:
1198            - If we are now autolocking or clearing, we write to ldap
1199            - If we are clearing, we delete the cache entry
1200            - If the count is > 0, we update the cache
1201
1202            This even means when autolocking, we cache, just in case the
1203            update doesn't work, and we have to cache the autolock flag */
1204
1205         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1206             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1207                 uint16 badcount = pdb_get_bad_password_count(sampass);
1208                 time_t badtime = pdb_get_bad_password_time(sampass);
1209                 uint32 pol;
1210                 pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &pol);
1211
1212                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1213                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1214
1215                 if ((badcount >= pol) || (badcount == 0)) {
1216                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1217                                 (unsigned int)badcount, (unsigned int)badtime));
1218                         slprintf (temp, sizeof (temp) - 1, "%li", (long)badcount);
1219                         smbldap_make_mod(
1220                                 ldap_state->smbldap_state->ldap_struct,
1221                                 existing, mods,
1222                                 get_userattr_key2string(
1223                                         ldap_state->schema_ver,
1224                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1225                                 temp);
1226
1227                         slprintf (temp, sizeof (temp) - 1, "%li", badtime);
1228                         smbldap_make_mod(
1229                                 ldap_state->smbldap_state->ldap_struct,
1230                                 existing, mods,
1231                                 get_userattr_key2string(
1232                                         ldap_state->schema_ver,
1233                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1234                                 temp);
1235                 }
1236                 if (badcount == 0) {
1237                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1238                         login_cache_delentry(sampass);
1239                 } else {
1240                         LOGIN_CACHE cache_entry;
1241
1242                         cache_entry.entry_timestamp = time(NULL);
1243                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1244                         cache_entry.bad_password_count = badcount;
1245                         cache_entry.bad_password_time = badtime;
1246
1247                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1248                         login_cache_write(sampass, cache_entry);
1249                 }
1250         }
1251
1252         return True;
1253 }
1254
1255 /**********************************************************************
1256  Connect to LDAP server for password enumeration.
1257 *********************************************************************/
1258
1259 static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, BOOL update, uint32 acb_mask)
1260 {
1261         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1262         int rc;
1263         pstring filter, suffix;
1264         const char **attr_list;
1265         BOOL machine_mask = False, user_mask = False;
1266
1267         pstr_sprintf( filter, "(&%s%s)", "(uid=%u)",
1268                 get_objclass_filter(ldap_state->schema_ver));
1269         all_string_sub(filter, "%u", "*", sizeof(pstring));
1270
1271         machine_mask    = ((acb_mask != 0) && (acb_mask & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)));
1272         user_mask       = ((acb_mask != 0) && (acb_mask & ACB_NORMAL));
1273
1274         if (machine_mask) {
1275                 pstrcpy(suffix, lp_ldap_machine_suffix());
1276         } else if (user_mask) {
1277                 pstrcpy(suffix, lp_ldap_user_suffix());
1278         } else {
1279                 pstrcpy(suffix, lp_ldap_suffix());
1280         }
1281
1282         DEBUG(10,("ldapsam_setsampwent: LDAP Query for acb_mask 0x%x will use suffix %s\n",
1283                 acb_mask, suffix));
1284
1285         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1286         rc = smbldap_search(ldap_state->smbldap_state, suffix, LDAP_SCOPE_SUBTREE, filter,
1287                             attr_list, 0, &ldap_state->result);
1288         TALLOC_FREE( attr_list );
1289
1290         if (rc != LDAP_SUCCESS) {
1291                 DEBUG(0, ("ldapsam_setsampwent: LDAP search failed: %s\n", ldap_err2string(rc)));
1292                 DEBUG(3, ("ldapsam_setsampwent: Query was: %s, %s\n", suffix, filter));
1293                 ldap_msgfree(ldap_state->result);
1294                 ldap_state->result = NULL;
1295                 return NT_STATUS_UNSUCCESSFUL;
1296         }
1297
1298         DEBUG(2, ("ldapsam_setsampwent: %d entries in the base %s\n",
1299                 ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
1300                 ldap_state->result), suffix));
1301
1302         ldap_state->entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
1303                                  ldap_state->result);
1304         ldap_state->index = 0;
1305
1306         return NT_STATUS_OK;
1307 }
1308
1309 /**********************************************************************
1310  End enumeration of the LDAP password list.
1311 *********************************************************************/
1312
1313 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1314 {
1315         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1316         if (ldap_state->result) {
1317                 ldap_msgfree(ldap_state->result);
1318                 ldap_state->result = NULL;
1319         }
1320 }
1321
1322 /**********************************************************************
1323 Get the next entry in the LDAP password database.
1324 *********************************************************************/
1325
1326 static NTSTATUS ldapsam_getsampwent(struct pdb_methods *my_methods,
1327                                     struct samu *user)
1328 {
1329         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1330         struct ldapsam_privates *ldap_state =
1331                 (struct ldapsam_privates *)my_methods->private_data;
1332         BOOL bret = False;
1333
1334         while (!bret) {
1335                 if (!ldap_state->entry)
1336                         return ret;
1337
1338                 ldap_state->index++;
1339                 bret = init_sam_from_ldap(ldap_state, user, ldap_state->entry);
1340
1341                 ldap_state->entry = ldap_next_entry(priv2ld(ldap_state),
1342                                                     ldap_state->entry);
1343         }
1344
1345         return NT_STATUS_OK;
1346 }
1347
1348 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1349                         const char *new_attr)
1350 {
1351         int i;
1352
1353         if (new_attr == NULL) {
1354                 return;
1355         }
1356
1357         for (i=0; (*attr_list)[i] != NULL; i++) {
1358                 ;
1359         }
1360
1361         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1362                                             const char *,  i+2);
1363         SMB_ASSERT((*attr_list) != NULL);
1364         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1365         (*attr_list)[i+1] = NULL;
1366 }
1367
1368 /**********************************************************************
1369 Get struct samu entry from LDAP by username.
1370 *********************************************************************/
1371
1372 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1373 {
1374         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1375         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1376         LDAPMessage *result = NULL;
1377         LDAPMessage *entry = NULL;
1378         int count;
1379         const char ** attr_list;
1380         int rc;
1381
1382         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1383         append_attr(user, &attr_list,
1384                     get_userattr_key2string(ldap_state->schema_ver,
1385                                             LDAP_ATTR_MOD_TIMESTAMP));
1386         append_attr(user, &attr_list, "uidNumber");
1387         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1388                                            attr_list);
1389         TALLOC_FREE( attr_list );
1390
1391         if ( rc != LDAP_SUCCESS )
1392                 return NT_STATUS_NO_SUCH_USER;
1393
1394         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1395
1396         if (count < 1) {
1397                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1398                 ldap_msgfree(result);
1399                 return NT_STATUS_NO_SUCH_USER;
1400         } else if (count > 1) {
1401                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1402                 ldap_msgfree(result);
1403                 return NT_STATUS_NO_SUCH_USER;
1404         }
1405
1406         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1407         if (entry) {
1408                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1409                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1410                         ldap_msgfree(result);
1411                         return NT_STATUS_NO_SUCH_USER;
1412                 }
1413                 pdb_set_backend_private_data(user, result, NULL,
1414                                              my_methods, PDB_CHANGED);
1415                 talloc_autofree_ldapmsg(user, result);
1416                 ret = NT_STATUS_OK;
1417         } else {
1418                 ldap_msgfree(result);
1419         }
1420         return ret;
1421 }
1422
1423 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1424                                    const DOM_SID *sid, LDAPMessage **result)
1425 {
1426         int rc = -1;
1427         const char ** attr_list;
1428         uint32 rid;
1429
1430         switch ( ldap_state->schema_ver ) {
1431                 case SCHEMAVER_SAMBASAMACCOUNT: {
1432                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1433                         if (tmp_ctx == NULL) {
1434                                 return LDAP_NO_MEMORY;
1435                         }
1436
1437                         attr_list = get_userattr_list(tmp_ctx,
1438                                                       ldap_state->schema_ver);
1439                         append_attr(tmp_ctx, &attr_list,
1440                                     get_userattr_key2string(
1441                                             ldap_state->schema_ver,
1442                                             LDAP_ATTR_MOD_TIMESTAMP));
1443                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1444                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1445                                                           result, attr_list);
1446                         TALLOC_FREE(tmp_ctx);
1447
1448                         if ( rc != LDAP_SUCCESS )
1449                                 return rc;
1450                         break;
1451                 }
1452
1453                 case SCHEMAVER_SAMBAACCOUNT:
1454                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1455                                 return rc;
1456                         }
1457
1458                         attr_list = get_userattr_list(NULL,
1459                                                       ldap_state->schema_ver);
1460                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1461                         TALLOC_FREE( attr_list );
1462
1463                         if ( rc != LDAP_SUCCESS )
1464                                 return rc;
1465                         break;
1466         }
1467         return rc;
1468 }
1469
1470 /**********************************************************************
1471  Get struct samu entry from LDAP by SID.
1472 *********************************************************************/
1473
1474 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1475 {
1476         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1477         LDAPMessage *result = NULL;
1478         LDAPMessage *entry = NULL;
1479         int count;
1480         int rc;
1481         fstring sid_string;
1482
1483         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1484                                           sid, &result);
1485         if (rc != LDAP_SUCCESS)
1486                 return NT_STATUS_NO_SUCH_USER;
1487
1488         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1489
1490         if (count < 1) {
1491                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] count=%d\n", sid_to_string(sid_string, sid),
1492                        count));
1493                 ldap_msgfree(result);
1494                 return NT_STATUS_NO_SUCH_USER;
1495         }  else if (count > 1) {
1496                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID [%s]. Failing. count=%d\n", sid_to_string(sid_string, sid),
1497                        count));
1498                 ldap_msgfree(result);
1499                 return NT_STATUS_NO_SUCH_USER;
1500         }
1501
1502         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1503         if (!entry) {
1504                 ldap_msgfree(result);
1505                 return NT_STATUS_NO_SUCH_USER;
1506         }
1507
1508         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1509                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1510                 ldap_msgfree(result);
1511                 return NT_STATUS_NO_SUCH_USER;
1512         }
1513
1514         pdb_set_backend_private_data(user, result, NULL,
1515                                      my_methods, PDB_CHANGED);
1516         talloc_autofree_ldapmsg(user, result);
1517         return NT_STATUS_OK;
1518 }
1519
1520 /********************************************************************
1521  Do the actual modification - also change a plaintext passord if
1522  it it set.
1523 **********************************************************************/
1524
1525 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1526                                      struct samu *newpwd, char *dn,
1527                                      LDAPMod **mods, int ldap_op,
1528                                      BOOL (*need_update)(const struct samu *, enum pdb_elements))
1529 {
1530         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1531         int rc;
1532
1533         if (!newpwd || !dn) {
1534                 return NT_STATUS_INVALID_PARAMETER;
1535         }
1536
1537         if (!mods) {
1538                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1539                 /* may be password change below however */
1540         } else {
1541                 switch(ldap_op) {
1542                         case LDAP_MOD_ADD:
1543                                 if (ldap_state->is_nds_ldap) {
1544                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1545                                                         "objectclass",
1546                                                         "inetOrgPerson");
1547                                 } else {
1548                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1549                                                         "objectclass",
1550                                                         LDAP_OBJ_ACCOUNT);
1551                                 }
1552                                 rc = smbldap_add(ldap_state->smbldap_state,
1553                                                  dn, mods);
1554                                 break;
1555                         case LDAP_MOD_REPLACE:
1556                                 rc = smbldap_modify(ldap_state->smbldap_state,
1557                                                     dn ,mods);
1558                                 break;
1559                         default:
1560                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1561                                          ldap_op));
1562                                 return NT_STATUS_INVALID_PARAMETER;
1563                 }
1564
1565                 if (rc!=LDAP_SUCCESS) {
1566                         return NT_STATUS_UNSUCCESSFUL;
1567                 }
1568         }
1569
1570         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1571                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1572                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1573                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1574                 BerElement *ber;
1575                 struct berval *bv;
1576                 char *retoid = NULL;
1577                 struct berval *retdata = NULL;
1578                 char *utf8_password;
1579                 char *utf8_dn;
1580
1581                 if (!ldap_state->is_nds_ldap) {
1582
1583                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1584                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1585                                 DEBUG(2, ("ldap password change requested, but LDAP "
1586                                           "server does not support it -- ignoring\n"));
1587                                 return NT_STATUS_OK;
1588                         }
1589                 }
1590
1591                 if (push_utf8_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
1592                         return NT_STATUS_NO_MEMORY;
1593                 }
1594
1595                 if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
1596                         SAFE_FREE(utf8_password);
1597                         return NT_STATUS_NO_MEMORY;
1598                 }
1599
1600                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1601                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1602                         SAFE_FREE(utf8_password);
1603                         SAFE_FREE(utf8_dn);
1604                         return NT_STATUS_UNSUCCESSFUL;
1605                 }
1606
1607                 ber_printf (ber, "{");
1608                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn);
1609                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password);
1610                 ber_printf (ber, "N}");
1611
1612                 if ((rc = ber_flatten (ber, &bv))<0) {
1613                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1614                         ber_free(ber,1);
1615                         SAFE_FREE(utf8_dn);
1616                         SAFE_FREE(utf8_password);
1617                         return NT_STATUS_UNSUCCESSFUL;
1618                 }
1619
1620                 SAFE_FREE(utf8_dn);
1621                 SAFE_FREE(utf8_password);
1622                 ber_free(ber, 1);
1623
1624                 if (!ldap_state->is_nds_ldap) {
1625                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1626                                                         LDAP_EXOP_MODIFY_PASSWD,
1627                                                         bv, NULL, NULL, &retoid,
1628                                                         &retdata);
1629                 } else {
1630                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1631                                                         pdb_get_plaintext_passwd(newpwd));
1632                 }
1633                 if (rc != LDAP_SUCCESS) {
1634                         char *ld_error = NULL;
1635
1636                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1637                                 DEBUG(3, ("Could not set userPassword "
1638                                           "attribute due to an objectClass "
1639                                           "violation -- ignoring\n"));
1640                                 ber_bvfree(bv);
1641                                 return NT_STATUS_OK;
1642                         }
1643
1644                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1645                                         &ld_error);
1646                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1647                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1648                         SAFE_FREE(ld_error);
1649                         ber_bvfree(bv);
1650                         return NT_STATUS_UNSUCCESSFUL;
1651                 } else {
1652                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1653 #ifdef DEBUG_PASSWORD
1654                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1655 #endif
1656                         if (retdata)
1657                                 ber_bvfree(retdata);
1658                         if (retoid)
1659                                 ldap_memfree(retoid);
1660                 }
1661                 ber_bvfree(bv);
1662         }
1663         return NT_STATUS_OK;
1664 }
1665
1666 /**********************************************************************
1667  Delete entry from LDAP for username.
1668 *********************************************************************/
1669
1670 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1671                                            struct samu * sam_acct)
1672 {
1673         struct ldapsam_privates *priv =
1674                 (struct ldapsam_privates *)my_methods->private_data;
1675         const char *sname;
1676         int rc;
1677         LDAPMessage *msg, *entry;
1678         NTSTATUS result = NT_STATUS_NO_MEMORY;
1679         const char **attr_list;
1680         TALLOC_CTX *mem_ctx;
1681
1682         if (!sam_acct) {
1683                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1684                 return NT_STATUS_INVALID_PARAMETER;
1685         }
1686
1687         sname = pdb_get_username(sam_acct);
1688
1689         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1690                   "LDAP.\n", sname));
1691
1692         mem_ctx = talloc_new(NULL);
1693         if (mem_ctx == NULL) {
1694                 DEBUG(0, ("talloc_new failed\n"));
1695                 goto done;
1696         }
1697
1698         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1699         if (attr_list == NULL) {
1700                 goto done;
1701         }
1702
1703         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1704
1705         if ((rc != LDAP_SUCCESS) ||
1706             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1707             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1708                 DEBUG(5, ("Could not find user %s\n", sname));
1709                 result = NT_STATUS_NO_SUCH_USER;
1710                 goto done;
1711         }
1712
1713         rc = ldapsam_delete_entry(
1714                 priv, mem_ctx, entry,
1715                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1716                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1717                 attr_list);
1718
1719         result = (rc == LDAP_SUCCESS) ?
1720                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1721
1722  done:
1723         TALLOC_FREE(mem_ctx);
1724         return result;
1725 }
1726
1727 /**********************************************************************
1728  Helper function to determine for update_sam_account whether
1729  we need LDAP modification.
1730 *********************************************************************/
1731
1732 static BOOL element_is_changed(const struct samu *sampass,
1733                                enum pdb_elements element)
1734 {
1735         return IS_SAM_CHANGED(sampass, element);
1736 }
1737
1738 /**********************************************************************
1739  Update struct samu.
1740 *********************************************************************/
1741
1742 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1743 {
1744         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1745         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1746         int rc = 0;
1747         char *dn;
1748         LDAPMessage *result = NULL;
1749         LDAPMessage *entry = NULL;
1750         LDAPMod **mods = NULL;
1751         const char **attr_list;
1752
1753         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1754         if (!result) {
1755                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1756                 if (pdb_get_username(newpwd) == NULL) {
1757                         return NT_STATUS_INVALID_PARAMETER;
1758                 }
1759                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1760                 TALLOC_FREE( attr_list );
1761                 if (rc != LDAP_SUCCESS) {
1762                         return NT_STATUS_UNSUCCESSFUL;
1763                 }
1764                 pdb_set_backend_private_data(newpwd, result, NULL,
1765                                              my_methods, PDB_CHANGED);
1766                 talloc_autofree_ldapmsg(newpwd, result);
1767         }
1768
1769         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1770                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1771                 return NT_STATUS_UNSUCCESSFUL;
1772         }
1773
1774         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1775         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
1776         if (!dn) {
1777                 return NT_STATUS_UNSUCCESSFUL;
1778         }
1779
1780         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1781
1782         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
1783                                 element_is_changed)) {
1784                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
1785                 SAFE_FREE(dn);
1786                 if (mods != NULL)
1787                         ldap_mods_free(mods,True);
1788                 return NT_STATUS_UNSUCCESSFUL;
1789         }
1790
1791         if (mods == NULL) {
1792                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
1793                          pdb_get_username(newpwd)));
1794                 SAFE_FREE(dn);
1795                 return NT_STATUS_OK;
1796         }
1797
1798         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
1799         ldap_mods_free(mods,True);
1800         SAFE_FREE(dn);
1801
1802         /*
1803          * We need to set the backend private data to NULL here. For example
1804          * setuserinfo level 25 does a pdb_update_sam_account twice on the
1805          * same one, and with the explicit delete / add logic for attribute
1806          * values the second time we would use the wrong "old" value which
1807          * does not exist in LDAP anymore. Thus the LDAP server would refuse
1808          * the update.
1809          * The existing LDAPMessage is still being auto-freed by the
1810          * destructor.
1811          */
1812         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
1813                                      PDB_CHANGED);
1814
1815         if (!NT_STATUS_IS_OK(ret)) {
1816                 return ret;
1817         }
1818
1819         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1820                   pdb_get_username(newpwd)));
1821         return NT_STATUS_OK;
1822 }
1823
1824 /***************************************************************************
1825  Renames a struct samu
1826  - The "rename user script" has full responsibility for changing everything
1827 ***************************************************************************/
1828
1829 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
1830                                            struct samu *old_acct,
1831                                            const char *newname)
1832 {
1833         const char *oldname;
1834         int rc;
1835         pstring rename_script;
1836         fstring oldname_lower, newname_lower;
1837
1838         if (!old_acct) {
1839                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
1840                 return NT_STATUS_INVALID_PARAMETER;
1841         }
1842         if (!newname) {
1843                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
1844                 return NT_STATUS_INVALID_PARAMETER;
1845         }
1846
1847         oldname = pdb_get_username(old_acct);
1848
1849         /* rename the posix user */
1850         pstrcpy(rename_script, lp_renameuser_script());
1851
1852         if (!(*rename_script))
1853                 return NT_STATUS_ACCESS_DENIED;
1854
1855         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
1856                    oldname, newname));
1857
1858         /* We have to allow the account name to end with a '$'.
1859            Also, follow the semantics in _samr_create_user() and lower case the
1860            posix name but preserve the case in passdb */
1861
1862         fstrcpy( oldname_lower, oldname );
1863         strlower_m( oldname_lower );
1864         fstrcpy( newname_lower, newname );
1865         strlower_m( newname_lower );
1866         string_sub2(rename_script, "%unew", newname_lower, sizeof(pstring),
1867                     True, False, True);
1868         string_sub2(rename_script, "%uold", oldname_lower, sizeof(pstring),
1869                     True, False, True);
1870         rc = smbrun(rename_script, NULL);
1871
1872         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
1873                           rename_script, rc));
1874
1875         if (rc == 0) {
1876                 smb_nscd_flush_user_cache();
1877         }
1878
1879         if (rc)
1880                 return NT_STATUS_UNSUCCESSFUL;
1881
1882         return NT_STATUS_OK;
1883 }
1884
1885 /**********************************************************************
1886  Helper function to determine for update_sam_account whether
1887  we need LDAP modification.
1888  *********************************************************************/
1889
1890 static BOOL element_is_set_or_changed(const struct samu *sampass,
1891                                       enum pdb_elements element)
1892 {
1893         return (IS_SAM_SET(sampass, element) ||
1894                 IS_SAM_CHANGED(sampass, element));
1895 }
1896
1897 /**********************************************************************
1898  Add struct samu to LDAP.
1899 *********************************************************************/
1900
1901 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1902 {
1903         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1904         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1905         int rc;
1906         LDAPMessage     *result = NULL;
1907         LDAPMessage     *entry  = NULL;
1908         pstring         dn;
1909         LDAPMod         **mods = NULL;
1910         int             ldap_op = LDAP_MOD_REPLACE;
1911         uint32          num_result;
1912         const char      **attr_list;
1913         char            *escape_user;
1914         const char      *username = pdb_get_username(newpwd);
1915         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
1916         pstring         filter;
1917         fstring         sid_string;
1918
1919         if (!username || !*username) {
1920                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
1921                 return NT_STATUS_INVALID_PARAMETER;
1922         }
1923
1924         /* free this list after the second search or in case we exit on failure */
1925         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1926
1927         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
1928
1929         if (rc != LDAP_SUCCESS) {
1930                 TALLOC_FREE( attr_list );
1931                 return NT_STATUS_UNSUCCESSFUL;
1932         }
1933
1934         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1935                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
1936                          username));
1937                 ldap_msgfree(result);
1938                 TALLOC_FREE( attr_list );
1939                 return NT_STATUS_UNSUCCESSFUL;
1940         }
1941         ldap_msgfree(result);
1942         result = NULL;
1943
1944         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
1945                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1946                                                   sid, &result);
1947                 if (rc == LDAP_SUCCESS) {
1948                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1949                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' already in the base, with samba attributes\n",
1950                                          sid_to_string(sid_string, sid)));
1951                                 TALLOC_FREE( attr_list );
1952                                 ldap_msgfree(result);
1953                                 return NT_STATUS_UNSUCCESSFUL;
1954                         }
1955                         ldap_msgfree(result);
1956                 }
1957         }
1958
1959         /* does the entry already exist but without a samba attributes?
1960            we need to return the samba attributes here */
1961
1962         escape_user = escape_ldap_string_alloc( username );
1963         pstrcpy( filter, "(uid=%u)" );
1964         all_string_sub( filter, "%u", escape_user, sizeof(filter) );
1965         SAFE_FREE( escape_user );
1966
1967         rc = smbldap_search_suffix(ldap_state->smbldap_state,
1968                                    filter, attr_list, &result);
1969         if ( rc != LDAP_SUCCESS ) {
1970                 TALLOC_FREE( attr_list );
1971                 return NT_STATUS_UNSUCCESSFUL;
1972         }
1973
1974         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1975
1976         if (num_result > 1) {
1977                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
1978                 TALLOC_FREE( attr_list );
1979                 ldap_msgfree(result);
1980                 return NT_STATUS_UNSUCCESSFUL;
1981         }
1982
1983         /* Check if we need to update an existing entry */
1984         if (num_result == 1) {
1985                 char *tmp;
1986
1987                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
1988                 ldap_op = LDAP_MOD_REPLACE;
1989                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
1990                 tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
1991                 if (!tmp) {
1992                         TALLOC_FREE( attr_list );
1993                         ldap_msgfree(result);
1994                         return NT_STATUS_UNSUCCESSFUL;
1995                 }
1996                 slprintf (dn, sizeof (dn) - 1, "%s", tmp);
1997                 SAFE_FREE(tmp);
1998
1999         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2000
2001                 /* There might be a SID for this account already - say an idmap entry */
2002
2003                 pstr_sprintf(filter, "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2004                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
2005                          sid_to_string(sid_string, sid),
2006                          LDAP_OBJ_IDMAP_ENTRY,
2007                          LDAP_OBJ_SID_ENTRY);
2008
2009                 /* free old result before doing a new search */
2010                 if (result != NULL) {
2011                         ldap_msgfree(result);
2012                         result = NULL;
2013                 }
2014                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2015                                            filter, attr_list, &result);
2016
2017                 if ( rc != LDAP_SUCCESS ) {
2018                         TALLOC_FREE( attr_list );
2019                         return NT_STATUS_UNSUCCESSFUL;
2020                 }
2021
2022                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2023
2024                 if (num_result > 1) {
2025                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2026                         TALLOC_FREE( attr_list );
2027                         ldap_msgfree(result);
2028                         return NT_STATUS_UNSUCCESSFUL;
2029                 }
2030
2031                 /* Check if we need to update an existing entry */
2032                 if (num_result == 1) {
2033                         char *tmp;
2034
2035                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2036                         ldap_op = LDAP_MOD_REPLACE;
2037                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2038                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2039                         if (!tmp) {
2040                                 TALLOC_FREE( attr_list );
2041                                 ldap_msgfree(result);
2042                                 return NT_STATUS_UNSUCCESSFUL;
2043                         }
2044                         slprintf (dn, sizeof (dn) - 1, "%s", tmp);
2045                         SAFE_FREE(tmp);
2046                 }
2047         }
2048
2049         TALLOC_FREE( attr_list );
2050
2051         if (num_result == 0) {
2052                 /* Check if we need to add an entry */
2053                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2054                 ldap_op = LDAP_MOD_ADD;
2055                 if (username[strlen(username)-1] == '$') {
2056                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_machine_suffix ());
2057                 } else {
2058                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_user_suffix ());
2059                 }
2060         }
2061
2062         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2063                                 element_is_set_or_changed)) {
2064                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2065                 ldap_msgfree(result);
2066                 if (mods != NULL)
2067                         ldap_mods_free(mods,True);
2068                 return NT_STATUS_UNSUCCESSFUL;
2069         }
2070
2071         ldap_msgfree(result);
2072
2073         if (mods == NULL) {
2074                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2075                 return NT_STATUS_UNSUCCESSFUL;
2076         }
2077         switch ( ldap_state->schema_ver ) {
2078                 case SCHEMAVER_SAMBAACCOUNT:
2079                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2080                         break;
2081                 case SCHEMAVER_SAMBASAMACCOUNT:
2082                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2083                         break;
2084                 default:
2085                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2086                         break;
2087         }
2088
2089         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2090         if (!NT_STATUS_IS_OK(ret)) {
2091                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2092                          pdb_get_username(newpwd),dn));
2093                 ldap_mods_free(mods, True);
2094                 return ret;
2095         }
2096
2097         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2098         ldap_mods_free(mods, True);
2099
2100         return NT_STATUS_OK;
2101 }
2102
2103 /**********************************************************************
2104  *********************************************************************/
2105
2106 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2107                                      const char *filter,
2108                                      LDAPMessage ** result)
2109 {
2110         int scope = LDAP_SCOPE_SUBTREE;
2111         int rc;
2112         const char **attr_list;
2113
2114         attr_list = get_attr_list(NULL, groupmap_attr_list);
2115         rc = smbldap_search(ldap_state->smbldap_state,
2116                             lp_ldap_group_suffix (), scope,
2117                             filter, attr_list, 0, result);
2118         TALLOC_FREE(attr_list);
2119
2120         return rc;
2121 }
2122
2123 /**********************************************************************
2124  *********************************************************************/
2125
2126 static BOOL init_group_from_ldap(struct ldapsam_privates *ldap_state,
2127                                  GROUP_MAP *map, LDAPMessage *entry)
2128 {
2129         pstring temp;
2130
2131         if (ldap_state == NULL || map == NULL || entry == NULL ||
2132                         ldap_state->smbldap_state->ldap_struct == NULL) {
2133                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2134                 return False;
2135         }
2136
2137         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2138                         get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER), temp)) {
2139                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2140                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2141                 return False;
2142         }
2143         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2144
2145         map->gid = (gid_t)atol(temp);
2146
2147         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2148                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID), temp)) {
2149                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2150                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2151                 return False;
2152         }
2153
2154         if (!string_to_sid(&map->sid, temp)) {
2155                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2156                 return False;
2157         }
2158
2159         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2160                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE), temp)) {
2161                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2162                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2163                 return False;
2164         }
2165         map->sid_name_use = (enum lsa_SidType)atol(temp);
2166
2167         if ((map->sid_name_use < SID_NAME_USER) ||
2168                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2169                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2170                 return False;
2171         }
2172
2173         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2174                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), temp)) {
2175                 temp[0] = '\0';
2176                 if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2177                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_CN), temp))
2178                 {
2179                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2180 for gidNumber(%lu)\n",(unsigned long)map->gid));
2181                         return False;
2182                 }
2183         }
2184         fstrcpy(map->nt_name, temp);
2185
2186         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2187                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DESC), temp)) {
2188                 temp[0] = '\0';
2189         }
2190         fstrcpy(map->comment, temp);
2191
2192         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
2193                 store_gid_sid_cache(&map->sid, map->gid);
2194         }
2195
2196         return True;
2197 }
2198
2199 /**********************************************************************
2200  *********************************************************************/
2201
2202 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2203                                  const char *filter,
2204                                  GROUP_MAP *map)
2205 {
2206         struct ldapsam_privates *ldap_state =
2207                 (struct ldapsam_privates *)methods->private_data;
2208         LDAPMessage *result = NULL;
2209         LDAPMessage *entry = NULL;
2210         int count;
2211
2212         if (ldapsam_search_one_group(ldap_state, filter, &result)
2213             != LDAP_SUCCESS) {
2214                 return NT_STATUS_NO_SUCH_GROUP;
2215         }
2216
2217         count = ldap_count_entries(priv2ld(ldap_state), result);
2218
2219         if (count < 1) {
2220                 DEBUG(4, ("ldapsam_getgroup: Did not find group\n"));
2221                 ldap_msgfree(result);
2222                 return NT_STATUS_NO_SUCH_GROUP;
2223         }
2224
2225         if (count > 1) {
2226                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2227                           "count=%d\n", filter, count));
2228                 ldap_msgfree(result);
2229                 return NT_STATUS_NO_SUCH_GROUP;
2230         }
2231
2232         entry = ldap_first_entry(priv2ld(ldap_state), result);
2233
2234         if (!entry) {
2235                 ldap_msgfree(result);
2236                 return NT_STATUS_UNSUCCESSFUL;
2237         }
2238
2239         if (!init_group_from_ldap(ldap_state, map, entry)) {
2240                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2241                           "group filter %s\n", filter));
2242                 ldap_msgfree(result);
2243                 return NT_STATUS_NO_SUCH_GROUP;
2244         }
2245
2246         ldap_msgfree(result);
2247         return NT_STATUS_OK;
2248 }
2249
2250 /**********************************************************************
2251  *********************************************************************/
2252
2253 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2254                                  DOM_SID sid)
2255 {
2256         pstring filter;
2257
2258         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
2259                 LDAP_OBJ_GROUPMAP,
2260                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2261                 sid_string_static(&sid));
2262
2263         return ldapsam_getgroup(methods, filter, map);
2264 }
2265
2266 /**********************************************************************
2267  *********************************************************************/
2268
2269 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2270                                  gid_t gid)
2271 {
2272         pstring filter;
2273
2274         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%lu))",
2275                 LDAP_OBJ_GROUPMAP,
2276                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2277                 (unsigned long)gid);
2278
2279         return ldapsam_getgroup(methods, filter, map);
2280 }
2281
2282 /**********************************************************************
2283  *********************************************************************/
2284
2285 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2286                                  const char *name)
2287 {
2288         pstring filter;
2289         char *escape_name = escape_ldap_string_alloc(name);
2290
2291         if (!escape_name) {
2292                 return NT_STATUS_NO_MEMORY;
2293         }
2294
2295         pstr_sprintf(filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2296                 LDAP_OBJ_GROUPMAP,
2297                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2298                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN), escape_name);
2299
2300         SAFE_FREE(escape_name);
2301
2302         return ldapsam_getgroup(methods, filter, map);
2303 }
2304
2305 static BOOL ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2306                                            LDAPMessage *entry,
2307                                            const DOM_SID *domain_sid,
2308                                            uint32 *rid)
2309 {
2310         fstring str;
2311         DOM_SID sid;
2312
2313         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2314                                           str, sizeof(str)-1)) {
2315                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2316                 return False;
2317         }
2318
2319         if (!string_to_sid(&sid, str)) {
2320                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2321                 return False;
2322         }
2323
2324         if (sid_compare_domain(&sid, domain_sid) != 0) {
2325                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2326                            str, sid_string_static(domain_sid)));
2327                 return False;
2328         }
2329
2330         if (!sid_peek_rid(&sid, rid)) {
2331                 DEBUG(10, ("Could not peek into RID\n"));
2332                 return False;
2333         }
2334
2335         return True;
2336 }
2337
2338 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2339                                            TALLOC_CTX *mem_ctx,
2340                                            const DOM_SID *group,
2341                                            uint32 **pp_member_rids,
2342                                            size_t *p_num_members)
2343 {
2344         struct ldapsam_privates *ldap_state =
2345                 (struct ldapsam_privates *)methods->private_data;
2346         struct smbldap_state *conn = ldap_state->smbldap_state;
2347         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2348         const char *sid_attrs[] = { "sambaSID", NULL };
2349         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2350         LDAPMessage *result = NULL;
2351         LDAPMessage *entry;
2352         char *filter;
2353         char **values = NULL;
2354         char **memberuid;
2355         char *gidstr;
2356         int rc, count;
2357
2358         *pp_member_rids = NULL;
2359         *p_num_members = 0;
2360
2361         filter = talloc_asprintf(mem_ctx,
2362                                  "(&(objectClass=%s)"
2363                                  "(objectClass=%s)"
2364                                  "(sambaSID=%s))",
2365                                  LDAP_OBJ_POSIXGROUP,
2366                                  LDAP_OBJ_GROUPMAP,
2367                                  sid_string_static(group));
2368         if (filter == NULL) {
2369                 ret = NT_STATUS_NO_MEMORY;
2370                 goto done;
2371         }
2372
2373         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2374                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2375                             &result);
2376
2377         if (rc != LDAP_SUCCESS)
2378                 goto done;
2379
2380         talloc_autofree_ldapmsg(mem_ctx, result);
2381
2382         count = ldap_count_entries(conn->ldap_struct, result);
2383
2384         if (count > 1) {
2385                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2386                           sid_string_static(group)));
2387                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2388                 goto done;
2389         }
2390
2391         if (count == 0) {
2392                 ret = NT_STATUS_NO_SUCH_GROUP;
2393                 goto done;
2394         }
2395
2396         entry = ldap_first_entry(conn->ldap_struct, result);
2397         if (entry == NULL)
2398                 goto done;
2399
2400         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2401         if (!gidstr) {
2402                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2403                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2404                 goto done;
2405         }
2406
2407         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2408
2409         if (values) {
2410
2411                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2412                 if (filter == NULL) {
2413                         ret = NT_STATUS_NO_MEMORY;
2414                         goto done;
2415                 }
2416
2417                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2418                         filter = talloc_asprintf_append(filter, "(uid=%s)", *memberuid);
2419                         if (filter == NULL) {
2420                                 ret = NT_STATUS_NO_MEMORY;
2421                                 goto done;
2422                         }
2423                 }
2424
2425                 filter = talloc_asprintf_append(filter, "))");
2426                 if (filter == NULL) {
2427                         ret = NT_STATUS_NO_MEMORY;
2428                         goto done;
2429                 }
2430
2431                 rc = smbldap_search(conn, lp_ldap_user_suffix(),
2432                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2433                                     &result);
2434
2435                 if (rc != LDAP_SUCCESS)
2436                         goto done;
2437
2438                 count = ldap_count_entries(conn->ldap_struct, result);
2439                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2440
2441                 talloc_autofree_ldapmsg(mem_ctx, result);
2442
2443                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2444                      entry != NULL;
2445                      entry = ldap_next_entry(conn->ldap_struct, entry))
2446                 {
2447                         char *sidstr;
2448                         DOM_SID sid;
2449                         uint32 rid;
2450
2451                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2452                                                                  entry, "sambaSID",
2453                                                                  mem_ctx);
2454                         if (!sidstr) {
2455                                 DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2456                                           "the sambaSID attribute\n"));
2457                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2458                                 goto done;
2459                         }
2460
2461                         if (!string_to_sid(&sid, sidstr))
2462                                 goto done;
2463
2464                         if (!sid_check_is_in_our_domain(&sid)) {
2465                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2466                                           "in our domain\n"));
2467                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2468                                 goto done;
2469                         }
2470
2471                         sid_peek_rid(&sid, &rid);
2472
2473                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2474                                                 p_num_members)) {
2475                                 ret = NT_STATUS_NO_MEMORY;
2476                                 goto done;
2477                         }
2478                 }
2479         }
2480
2481         filter = talloc_asprintf(mem_ctx,
2482                                  "(&(objectClass=%s)"
2483                                  "(gidNumber=%s))",
2484                                  LDAP_OBJ_SAMBASAMACCOUNT,
2485                                  gidstr);
2486
2487         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2488                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2489                             &result);
2490
2491         if (rc != LDAP_SUCCESS)
2492                 goto done;
2493
2494         talloc_autofree_ldapmsg(mem_ctx, result);
2495
2496         for (entry = ldap_first_entry(conn->ldap_struct, result);
2497              entry != NULL;
2498              entry = ldap_next_entry(conn->ldap_struct, entry))
2499         {
2500                 uint32 rid;
2501
2502                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2503                                                     entry,
2504                                                     get_global_sam_sid(),
2505                                                     &rid)) {
2506                         DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2507                                   "the sambaSID attribute\n"));
2508                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2509                         goto done;
2510                 }
2511
2512                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2513                                         p_num_members)) {
2514                         ret = NT_STATUS_NO_MEMORY;
2515                         goto done;
2516                 }
2517         }
2518
2519         ret = NT_STATUS_OK;
2520
2521  done:
2522
2523         if (values)
2524                 ldap_value_free(values);
2525
2526         return ret;
2527 }
2528
2529 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2530                                                TALLOC_CTX *mem_ctx,
2531                                                struct samu *user,
2532                                                DOM_SID **pp_sids,
2533                                                gid_t **pp_gids,
2534                                                size_t *p_num_groups)
2535 {
2536         struct ldapsam_privates *ldap_state =
2537                 (struct ldapsam_privates *)methods->private_data;
2538         struct smbldap_state *conn = ldap_state->smbldap_state;
2539         char *filter;
2540         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2541         char *escape_name;
2542         int rc, count;
2543         LDAPMessage *result = NULL;
2544         LDAPMessage *entry;
2545         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2546         size_t num_sids, num_gids;
2547         char *gidstr;
2548         gid_t primary_gid = -1;
2549
2550         *pp_sids = NULL;
2551         num_sids = 0;
2552
2553         if (pdb_get_username(user) == NULL) {
2554                 return NT_STATUS_INVALID_PARAMETER;
2555         }
2556
2557         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2558         if (escape_name == NULL)
2559                 return NT_STATUS_NO_MEMORY;
2560
2561         /* retrieve the users primary gid */
2562         filter = talloc_asprintf(mem_ctx,
2563                                  "(&(objectClass=%s)(uid=%s))",
2564                                  LDAP_OBJ_SAMBASAMACCOUNT,
2565                                  escape_name);
2566         if (filter == NULL) {
2567                 ret = NT_STATUS_NO_MEMORY;
2568                 goto done;
2569         }
2570
2571         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2572                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2573
2574         if (rc != LDAP_SUCCESS)
2575                 goto done;
2576
2577         talloc_autofree_ldapmsg(mem_ctx, result);
2578
2579         count = ldap_count_entries(priv2ld(ldap_state), result);
2580
2581         switch (count) {
2582         case 0:
2583                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2584                 ret = NT_STATUS_NO_SUCH_USER;
2585                 goto done;
2586         case 1:
2587                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2588
2589                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2590                 if (!gidstr) {
2591                         DEBUG (1, ("Unable to find the member's gid!\n"));
2592                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2593                         goto done;
2594                 }
2595                 primary_gid = strtoul(gidstr, NULL, 10);
2596                 break;
2597         default:
2598                 DEBUG(1, ("found more than one accoutn with the same user name ?!\n"));
2599                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2600                 goto done;
2601         }
2602
2603         filter = talloc_asprintf(mem_ctx,
2604                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2605                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2606         if (filter == NULL) {
2607                 ret = NT_STATUS_NO_MEMORY;
2608                 goto done;
2609         }
2610
2611         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2612                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2613
2614         if (rc != LDAP_SUCCESS)
2615                 goto done;
2616
2617         talloc_autofree_ldapmsg(mem_ctx, result);
2618
2619         num_gids = 0;
2620         *pp_gids = NULL;
2621
2622         num_sids = 0;
2623         *pp_sids = NULL;
2624
2625         /* We need to add the primary group as the first gid/sid */
2626
2627         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2628                 ret = NT_STATUS_NO_MEMORY;
2629                 goto done;
2630         }
2631
2632         /* This sid will be replaced later */
2633
2634         if (!add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids)) {
2635                 ret = NT_STATUS_NO_MEMORY;
2636                 goto done;
2637         }
2638
2639         for (entry = ldap_first_entry(conn->ldap_struct, result);
2640              entry != NULL;
2641              entry = ldap_next_entry(conn->ldap_struct, entry))
2642         {
2643                 fstring str;
2644                 DOM_SID sid;
2645                 gid_t gid;
2646                 char *end;
2647
2648                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2649                                                   entry, "sambaSID",
2650                                                   str, sizeof(str)-1))
2651                         continue;
2652
2653                 if (!string_to_sid(&sid, str))
2654                         goto done;
2655
2656                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2657                                                   entry, "gidNumber",
2658                                                   str, sizeof(str)-1))
2659                         continue;
2660
2661                 gid = strtoul(str, &end, 10);
2662
2663                 if (PTR_DIFF(end, str) != strlen(str))
2664                         goto done;
2665
2666                 if (gid == primary_gid) {
2667                         sid_copy(&(*pp_sids)[0], &sid);
2668                 } else {
2669                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2670                                                 &num_gids)) {
2671                                 ret = NT_STATUS_NO_MEMORY;
2672                                 goto done;
2673                         }
2674                         if (!add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2675                                                 &num_sids)) {
2676                                 ret = NT_STATUS_NO_MEMORY;
2677                                 goto done;
2678                         }
2679                 }
2680         }
2681
2682         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2683                 DEBUG(3, ("primary group of [%s] not found\n",
2684                           pdb_get_username(user)));
2685                 goto done;
2686         }
2687
2688         *p_num_groups = num_sids;
2689
2690         ret = NT_STATUS_OK;
2691
2692  done:
2693
2694         SAFE_FREE(escape_name);
2695         return ret;
2696 }
2697
2698 /**********************************************************************
2699  * Augment a posixGroup object with a sambaGroupMapping domgroup
2700  *********************************************************************/
2701
2702 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2703                                        struct ldapsam_privates *ldap_state,
2704                                        GROUP_MAP *map)
2705 {
2706         const char *filter, *dn;
2707         LDAPMessage *msg, *entry;
2708         LDAPMod **mods;
2709         int rc;
2710
2711         filter = talloc_asprintf(mem_ctx,
2712                                  "(&(objectClass=posixGroup)(gidNumber=%u))",
2713                                  map->gid);
2714         if (filter == NULL) {
2715                 return NT_STATUS_NO_MEMORY;
2716         }
2717
2718         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2719                                    get_attr_list(mem_ctx, groupmap_attr_list),
2720                                    &msg);
2721         talloc_autofree_ldapmsg(mem_ctx, msg);
2722
2723         if ((rc != LDAP_SUCCESS) ||
2724             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2725             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2726                 return NT_STATUS_NO_SUCH_GROUP;
2727         }
2728
2729         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2730         if (dn == NULL) {
2731                 return NT_STATUS_NO_MEMORY;
2732         }
2733
2734         mods = NULL;
2735         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
2736                         "sambaGroupMapping");
2737         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
2738                          sid_string_static(&map->sid));
2739         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
2740                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2741         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2742                          map->nt_name);
2743         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2744                          map->comment);
2745         talloc_autofree_ldapmod(mem_ctx, mods);
2746
2747         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2748         if (rc != LDAP_SUCCESS) {
2749                 return NT_STATUS_ACCESS_DENIED;
2750         }
2751
2752         return NT_STATUS_OK;
2753 }
2754
2755 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
2756                                                 GROUP_MAP *map)
2757 {
2758         struct ldapsam_privates *ldap_state =
2759                 (struct ldapsam_privates *)methods->private_data;
2760         LDAPMessage *msg = NULL;
2761         LDAPMod **mods = NULL;
2762         const char *attrs[] = { NULL };
2763         char *filter;
2764
2765         char *dn;
2766         TALLOC_CTX *mem_ctx;
2767         NTSTATUS result;
2768
2769         DOM_SID sid;
2770
2771         int rc;
2772
2773         mem_ctx = talloc_new(NULL);
2774         if (mem_ctx == NULL) {
2775                 DEBUG(0, ("talloc_new failed\n"));
2776                 return NT_STATUS_NO_MEMORY;
2777         }
2778
2779         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
2780                                  sid_string_static(&map->sid));
2781         if (filter == NULL) {
2782                 result = NT_STATUS_NO_MEMORY;
2783                 goto done;
2784         }
2785
2786         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
2787                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
2788         talloc_autofree_ldapmsg(mem_ctx, msg);
2789
2790         if ((rc == LDAP_SUCCESS) &&
2791             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
2792
2793                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
2794                           "group mapping entry\n",
2795                           sid_string_static(&map->sid)));
2796                 result = NT_STATUS_GROUP_EXISTS;
2797                 goto done;
2798         }
2799
2800         switch (map->sid_name_use) {
2801
2802         case SID_NAME_DOM_GRP:
2803                 /* To map a domain group we need to have a posix group
2804                    to attach to. */
2805                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
2806                 goto done;
2807                 break;
2808
2809         case SID_NAME_ALIAS:
2810                 if (!sid_check_is_in_our_domain(&map->sid)
2811                         && !sid_check_is_in_builtin(&map->sid) )
2812                 {
2813                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
2814                                   sid_string_static(&map->sid)));
2815                         result = NT_STATUS_INVALID_PARAMETER;
2816                         goto done;
2817                 }
2818                 break;
2819
2820         default:
2821                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
2822                           sid_type_lookup(map->sid_name_use)));
2823                 result = NT_STATUS_INVALID_PARAMETER;
2824                 goto done;
2825         }
2826
2827         /* Domain groups have been mapped in a separate routine, we have to
2828          * create an alias now */
2829
2830         if (map->gid == -1) {
2831                 DEBUG(10, ("Refusing to map gid==-1\n"));
2832                 result = NT_STATUS_INVALID_PARAMETER;
2833                 goto done;
2834         }
2835
2836         if (pdb_gid_to_sid(map->gid, &sid)) {
2837                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
2838                           "add\n", map->gid, sid_string_static(&sid)));
2839                 result = NT_STATUS_GROUP_EXISTS;
2840                 goto done;
2841         }
2842
2843         /* Ok, enough checks done. It's still racy to go ahead now, but that's
2844          * the best we can get out of LDAP. */
2845
2846         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
2847                              sid_string_static(&map->sid),
2848                              lp_ldap_group_suffix());
2849         if (dn == NULL) {
2850                 result = NT_STATUS_NO_MEMORY;
2851                 goto done;
2852         }
2853
2854         mods = NULL;
2855
2856         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2857                          "sambaSidEntry");
2858         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2859                          "sambaGroupMapping");
2860
2861         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
2862                          sid_string_static(&map->sid));
2863         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
2864                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2865         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
2866                          map->nt_name);
2867         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
2868                          map->comment);
2869         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
2870                          talloc_asprintf(mem_ctx, "%u", map->gid));
2871         talloc_autofree_ldapmod(mem_ctx, mods);
2872
2873         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
2874
2875         result = (rc == LDAP_SUCCESS) ?
2876                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
2877
2878  done:
2879         TALLOC_FREE(mem_ctx);
2880         return result;
2881 }
2882
2883 /**********************************************************************
2884  * Update a group mapping entry. We're quite strict about what can be changed:
2885  * Only the description and displayname may be changed. It simply does not
2886  * make any sense to change the SID, gid or the type in a mapping.
2887  *********************************************************************/
2888
2889 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
2890                                                    GROUP_MAP *map)
2891 {
2892         struct ldapsam_privates *ldap_state =
2893                 (struct ldapsam_privates *)methods->private_data;
2894         int rc;
2895         const char *filter, *dn;
2896         LDAPMessage *msg = NULL;
2897         LDAPMessage *entry = NULL;
2898         LDAPMod **mods = NULL;
2899         TALLOC_CTX *mem_ctx;
2900         NTSTATUS result;
2901
2902         mem_ctx = talloc_new(NULL);
2903         if (mem_ctx == NULL) {
2904                 DEBUG(0, ("talloc_new failed\n"));
2905                 return NT_STATUS_NO_MEMORY;
2906         }
2907
2908         /* Make 100% sure that sid, gid and type are not changed by looking up
2909          * exactly the values we're given in LDAP. */
2910
2911         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
2912                                  "(sambaSid=%s)(gidNumber=%u)"
2913                                  "(sambaGroupType=%d))",
2914                                  LDAP_OBJ_GROUPMAP,
2915                                  sid_string_static(&map->sid), map->gid,
2916                                  map->sid_name_use);
2917         if (filter == NULL) {
2918                 result = NT_STATUS_NO_MEMORY;
2919                 goto done;
2920         }
2921
2922         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2923                                    get_attr_list(mem_ctx, groupmap_attr_list),
2924                                    &msg);
2925         talloc_autofree_ldapmsg(mem_ctx, msg);
2926
2927         if ((rc != LDAP_SUCCESS) ||
2928             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2929             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2930                 result = NT_STATUS_NO_SUCH_GROUP;
2931                 goto done;
2932         }
2933
2934         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2935
2936         if (dn == NULL) {
2937                 result = NT_STATUS_NO_MEMORY;
2938                 goto done;
2939         }
2940
2941         mods = NULL;
2942         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2943                          map->nt_name);
2944         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2945                          map->comment);
2946         talloc_autofree_ldapmod(mem_ctx, mods);
2947
2948         if (mods == NULL) {
2949                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
2950                           "nothing to do\n"));
2951                 result = NT_STATUS_OK;
2952                 goto done;
2953         }
2954
2955         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2956
2957         if (rc != LDAP_SUCCESS) {
2958                 result = NT_STATUS_ACCESS_DENIED;
2959                 goto done;
2960         }
2961
2962         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
2963                   "group %lu in LDAP\n", (unsigned long)map->gid));
2964
2965         result = NT_STATUS_OK;
2966
2967  done:
2968         TALLOC_FREE(mem_ctx);
2969         return result;
2970 }
2971
2972 /**********************************************************************
2973  *********************************************************************/
2974
2975 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
2976                                                    DOM_SID sid)
2977 {
2978         struct ldapsam_privates *priv =
2979                 (struct ldapsam_privates *)methods->private_data;
2980         LDAPMessage *msg, *entry;
2981         int rc;
2982         NTSTATUS result;
2983         TALLOC_CTX *mem_ctx;
2984         char *filter;
2985
2986         mem_ctx = talloc_new(NULL);
2987         if (mem_ctx == NULL) {
2988                 DEBUG(0, ("talloc_new failed\n"));
2989                 return NT_STATUS_NO_MEMORY;
2990         }
2991
2992         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
2993                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
2994                                  sid_string_static(&sid));
2995         if (filter == NULL) {
2996                 result = NT_STATUS_NO_MEMORY;
2997                 goto done;
2998         }
2999         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3000                                    get_attr_list(mem_ctx, groupmap_attr_list),
3001                                    &msg);
3002         talloc_autofree_ldapmsg(mem_ctx, msg);
3003
3004         if ((rc != LDAP_SUCCESS) ||
3005             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3006             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3007                 result = NT_STATUS_NO_SUCH_GROUP;
3008                 goto done;
3009         }
3010
3011         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3012                                   get_attr_list(mem_ctx,
3013                                                 groupmap_attr_list_to_delete));
3014
3015         if ((rc == LDAP_NAMING_VIOLATION) ||
3016             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3017                 const char *attrs[] = { "sambaGroupType", "description",
3018                                         "displayName", "sambaSIDList",
3019                                         NULL };
3020
3021                 /* Second try. Don't delete the sambaSID attribute, this is
3022                    for "old" entries that are tacked on a winbind
3023                    sambaIdmapEntry. */
3024
3025                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3026                                           LDAP_OBJ_GROUPMAP, attrs);
3027         }
3028
3029         if ((rc == LDAP_NAMING_VIOLATION) ||
3030             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3031                 const char *attrs[] = { "sambaGroupType", "description",
3032                                         "displayName", "sambaSIDList",
3033                                         "gidNumber", NULL };
3034
3035                 /* Third try. This is a post-3.0.21 alias (containing only
3036                  * sambaSidEntry and sambaGroupMapping classes), we also have
3037                  * to delete the gidNumber attribute, only the sambaSidEntry
3038                  * remains */
3039
3040                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3041                                           LDAP_OBJ_GROUPMAP, attrs);
3042         }
3043
3044         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3045
3046  done:
3047         TALLOC_FREE(mem_ctx);
3048         return result;
3049  }
3050
3051 /**********************************************************************
3052  *********************************************************************/
3053
3054 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3055                                     BOOL update)
3056 {
3057         struct ldapsam_privates *ldap_state =
3058                 (struct ldapsam_privates *)my_methods->private_data;
3059         fstring filter;
3060         int rc;
3061         const char **attr_list;
3062
3063         pstr_sprintf( filter, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3064         attr_list = get_attr_list( NULL, groupmap_attr_list );
3065         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3066                             LDAP_SCOPE_SUBTREE, filter,
3067                             attr_list, 0, &ldap_state->result);
3068         TALLOC_FREE(attr_list);
3069
3070         if (rc != LDAP_SUCCESS) {
3071                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3072                           ldap_err2string(rc)));
3073                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3074                           lp_ldap_group_suffix(), filter));
3075                 ldap_msgfree(ldap_state->result);
3076                 ldap_state->result = NULL;
3077                 return NT_STATUS_UNSUCCESSFUL;
3078         }
3079
3080         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3081                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3082                                      ldap_state->result)));
3083
3084         ldap_state->entry =
3085                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3086                                  ldap_state->result);
3087         ldap_state->index = 0;
3088
3089         return NT_STATUS_OK;
3090 }
3091
3092 /**********************************************************************
3093  *********************************************************************/
3094
3095 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3096 {
3097         ldapsam_endsampwent(my_methods);
3098 }
3099
3100 /**********************************************************************
3101  *********************************************************************/
3102
3103 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3104                                     GROUP_MAP *map)
3105 {
3106         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3107         struct ldapsam_privates *ldap_state =
3108                 (struct ldapsam_privates *)my_methods->private_data;
3109         BOOL bret = False;
3110
3111         while (!bret) {
3112                 if (!ldap_state->entry)
3113                         return ret;
3114
3115                 ldap_state->index++;
3116                 bret = init_group_from_ldap(ldap_state, map,
3117                                             ldap_state->entry);
3118
3119                 ldap_state->entry =
3120                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3121                                         ldap_state->entry);
3122         }
3123
3124         return NT_STATUS_OK;
3125 }
3126
3127 /**********************************************************************
3128  *********************************************************************/
3129
3130 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3131                                            const DOM_SID *domsid, enum lsa_SidType sid_name_use,
3132                                            GROUP_MAP **pp_rmap,
3133                                            size_t *p_num_entries,
3134                                            BOOL unix_only)
3135 {
3136         GROUP_MAP map;
3137         size_t entries = 0;
3138
3139         *p_num_entries = 0;
3140         *pp_rmap = NULL;
3141
3142         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3143                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3144                           "passdb\n"));
3145                 return NT_STATUS_ACCESS_DENIED;
3146         }
3147
3148         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3149                 if (sid_name_use != SID_NAME_UNKNOWN &&
3150                     sid_name_use != map.sid_name_use) {
3151                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3152                                   "not of the requested type\n", map.nt_name));
3153                         continue;
3154                 }
3155                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3156                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3157                                   "non mapped\n", map.nt_name));
3158                         continue;
3159                 }
3160
3161                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3162                 if (!(*pp_rmap)) {
3163                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3164                                  "enlarge group map!\n"));
3165                         return NT_STATUS_UNSUCCESSFUL;
3166                 }
3167
3168                 (*pp_rmap)[entries] = map;
3169
3170                 entries += 1;
3171
3172         }
3173         ldapsam_endsamgrent(methods);
3174
3175         *p_num_entries = entries;
3176
3177         return NT_STATUS_OK;
3178 }
3179
3180 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3181                                         const DOM_SID *alias,
3182                                         const DOM_SID *member,
3183                                         int modop)
3184 {
3185         struct ldapsam_privates *ldap_state =
3186                 (struct ldapsam_privates *)methods->private_data;
3187         char *dn;
3188         LDAPMessage *result = NULL;
3189         LDAPMessage *entry = NULL;
3190         int count;
3191         LDAPMod **mods = NULL;
3192         int rc;
3193         enum lsa_SidType type = SID_NAME_USE_NONE;
3194
3195         pstring filter;
3196
3197         if (sid_check_is_in_builtin(alias)) {
3198                 type = SID_NAME_ALIAS;
3199         }
3200
3201         if (sid_check_is_in_our_domain(alias)) {
3202                 type = SID_NAME_ALIAS;
3203         }
3204
3205         if (type == SID_NAME_USE_NONE) {
3206                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3207                           sid_string_static(alias)));
3208                 return NT_STATUS_NO_SUCH_ALIAS;
3209         }
3210
3211         pstr_sprintf(filter,
3212                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3213                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3214                      type);
3215
3216         if (ldapsam_search_one_group(ldap_state, filter,
3217                                      &result) != LDAP_SUCCESS)
3218                 return NT_STATUS_NO_SUCH_ALIAS;
3219
3220         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3221                                    result);
3222
3223         if (count < 1) {
3224                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3225                 ldap_msgfree(result);
3226                 return NT_STATUS_NO_SUCH_ALIAS;
3227         }
3228
3229         if (count > 1) {
3230                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3231                           "filter %s: count=%d\n", filter, count));
3232                 ldap_msgfree(result);
3233                 return NT_STATUS_NO_SUCH_ALIAS;
3234         }
3235
3236         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3237                                  result);
3238
3239         if (!entry) {
3240                 ldap_msgfree(result);
3241                 return NT_STATUS_UNSUCCESSFUL;
3242         }
3243
3244         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
3245         if (!dn) {
3246                 ldap_msgfree(result);
3247                 return NT_STATUS_UNSUCCESSFUL;
3248         }
3249
3250         smbldap_set_mod(&mods, modop,
3251                         get_attr_key2string(groupmap_attr_list,
3252                                             LDAP_ATTR_SID_LIST),
3253                         sid_string_static(member));
3254
3255         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3256
3257         ldap_mods_free(mods, True);
3258         ldap_msgfree(result);
3259         SAFE_FREE(dn);
3260
3261         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3262                 return NT_STATUS_MEMBER_IN_ALIAS;
3263         }
3264
3265         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3266                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3267         }
3268
3269         if (rc != LDAP_SUCCESS) {
3270                 return NT_STATUS_UNSUCCESSFUL;
3271         }
3272
3273         return NT_STATUS_OK;
3274 }
3275
3276 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3277                                      const DOM_SID *alias,
3278                                      const DOM_SID *member)
3279 {
3280         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3281 }
3282
3283 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3284                                      const DOM_SID *alias,
3285                                      const DOM_SID *member)
3286 {
3287         return ldapsam_modify_aliasmem(methods, alias, member,
3288                                        LDAP_MOD_DELETE);
3289 }
3290
3291 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3292                                       const DOM_SID *alias,
3293                                       DOM_SID **pp_members,
3294                                       size_t *p_num_members)
3295 {
3296         struct ldapsam_privates *ldap_state =
3297                 (struct ldapsam_privates *)methods->private_data;
3298         LDAPMessage *result = NULL;
3299         LDAPMessage *entry = NULL;
3300         int count;
3301         char **values;
3302         int i;
3303         pstring filter;
3304         size_t num_members = 0;
3305         enum lsa_SidType type = SID_NAME_USE_NONE;
3306
3307         *pp_members = NULL;
3308         *p_num_members = 0;
3309
3310         if (sid_check_is_in_builtin(alias)) {
3311                 type = SID_NAME_ALIAS;
3312         }
3313
3314         if (sid_check_is_in_our_domain(alias)) {
3315                 type = SID_NAME_ALIAS;
3316         }
3317
3318         if (type == SID_NAME_USE_NONE) {
3319                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3320                           sid_string_static(alias)));
3321                 return NT_STATUS_NO_SUCH_ALIAS;
3322         }
3323
3324         pstr_sprintf(filter,
3325                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3326                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3327                      type);
3328
3329         if (ldapsam_search_one_group(ldap_state, filter,
3330                                      &result) != LDAP_SUCCESS)
3331                 return NT_STATUS_NO_SUCH_ALIAS;
3332
3333         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3334                                    result);
3335
3336         if (count < 1) {
3337                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3338                 ldap_msgfree(result);
3339                 return NT_STATUS_NO_SUCH_ALIAS;
3340         }
3341
3342         if (count > 1) {
3343                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3344                           "filter %s: count=%d\n", filter, count));
3345                 ldap_msgfree(result);
3346                 return NT_STATUS_NO_SUCH_ALIAS;
3347         }
3348
3349         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3350                                  result);
3351
3352         if (!entry) {
3353                 ldap_msgfree(result);
3354                 return NT_STATUS_UNSUCCESSFUL;
3355         }
3356
3357         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3358                                  entry,
3359                                  get_attr_key2string(groupmap_attr_list,
3360                                                      LDAP_ATTR_SID_LIST));
3361
3362         if (values == NULL) {
3363                 ldap_msgfree(result);
3364                 return NT_STATUS_OK;
3365         }
3366
3367         count = ldap_count_values(values);
3368
3369         for (i=0; i<count; i++) {
3370                 DOM_SID member;
3371
3372                 if (!string_to_sid(&member, values[i]))
3373                         continue;
3374
3375                 if (!add_sid_to_array(NULL, &member, pp_members, &num_members)) {
3376                         ldap_value_free(values);
3377                         ldap_msgfree(result);
3378                         return NT_STATUS_NO_MEMORY;
3379                 }
3380         }
3381
3382         *p_num_members = num_members;
3383         ldap_value_free(values);
3384         ldap_msgfree(result);
3385
3386         return NT_STATUS_OK;
3387 }
3388
3389 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3390                                           TALLOC_CTX *mem_ctx,
3391                                           const DOM_SID *domain_sid,
3392                                           const DOM_SID *members,
3393                                           size_t num_members,
3394                                           uint32 **pp_alias_rids,
3395                                           size_t *p_num_alias_rids)
3396 {
3397         struct ldapsam_privates *ldap_state =
3398                 (struct ldapsam_privates *)methods->private_data;
3399         LDAP *ldap_struct;
3400
3401         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3402
3403         LDAPMessage *result = NULL;
3404         LDAPMessage *entry = NULL;
3405         int i;
3406         int rc;
3407         char *filter;
3408         enum lsa_SidType type = SID_NAME_USE_NONE;
3409
3410         if (sid_check_is_builtin(domain_sid)) {
3411                 type = SID_NAME_ALIAS;
3412         }
3413
3414         if (sid_check_is_domain(domain_sid)) {
3415                 type = SID_NAME_ALIAS;
3416         }
3417
3418         if (type == SID_NAME_USE_NONE) {
3419                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3420                           sid_string_static(domain_sid)));
3421                 return NT_STATUS_UNSUCCESSFUL;
3422         }
3423
3424         filter = talloc_asprintf(mem_ctx,
3425                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3426                                  LDAP_OBJ_GROUPMAP, type);
3427
3428         for (i=0; i<num_members; i++)
3429                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3430                                          filter,
3431                                          sid_string_static(&members[i]));
3432
3433         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3434
3435         if (filter == NULL) {
3436                 return NT_STATUS_NO_MEMORY;
3437         }
3438
3439         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3440                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3441
3442         if (rc != LDAP_SUCCESS)
3443                 return NT_STATUS_UNSUCCESSFUL;
3444
3445         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3446
3447         for (entry = ldap_first_entry(ldap_struct, result);
3448              entry != NULL;
3449              entry = ldap_next_entry(ldap_struct, entry))
3450         {
3451                 fstring sid_str;
3452                 DOM_SID sid;
3453                 uint32 rid;
3454
3455                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3456                                                   LDAP_ATTRIBUTE_SID,
3457                                                   sid_str,
3458                                                   sizeof(sid_str)-1))
3459                         continue;
3460
3461                 if (!string_to_sid(&sid, sid_str))
3462                         continue;
3463
3464                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3465                         continue;
3466
3467                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3468                                         p_num_alias_rids)) {
3469                         ldap_msgfree(result);
3470                         return NT_STATUS_NO_MEMORY;
3471                 }
3472         }
3473
3474         ldap_msgfree(result);
3475         return NT_STATUS_OK;
3476 }
3477
3478 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3479                                                    int policy_index,
3480                                                    uint32 value)
3481 {
3482         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3483         int rc;
3484         LDAPMod **mods = NULL;
3485         fstring value_string;
3486         const char *policy_attr = NULL;
3487
3488         struct ldapsam_privates *ldap_state =
3489                 (struct ldapsam_privates *)methods->private_data;
3490
3491         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3492
3493         if (!ldap_state->domain_dn) {
3494                 return NT_STATUS_INVALID_PARAMETER;
3495         }
3496
3497         policy_attr = get_account_policy_attr(policy_index);
3498         if (policy_attr == NULL) {
3499                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3500                          "policy\n"));
3501                 return ntstatus;
3502         }
3503
3504         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3505
3506         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3507
3508         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3509                             mods);
3510
3511         ldap_mods_free(mods, True);
3512
3513         if (rc != LDAP_SUCCESS) {
3514                 return ntstatus;
3515         }
3516
3517         if (!cache_account_policy_set(policy_index, value)) {
3518                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3519                          "update local tdb cache\n"));
3520                 return ntstatus;
3521         }
3522
3523         return NT_STATUS_OK;
3524 }
3525
3526 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3527                                            int policy_index, uint32 value)
3528 {
3529         return ldapsam_set_account_policy_in_ldap(methods, policy_index,
3530                                                   value);
3531 }
3532
3533 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3534                                                      int policy_index,
3535                                                      uint32 *value)
3536 {
3537         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3538         LDAPMessage *result = NULL;
3539         LDAPMessage *entry = NULL;
3540         int count;
3541         int rc;
3542         char **vals = NULL;
3543         const char *policy_attr = NULL;
3544
3545         struct ldapsam_privates *ldap_state =
3546                 (struct ldapsam_privates *)methods->private_data;
3547
3548         const char *attrs[2];
3549
3550         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3551
3552         if (!ldap_state->domain_dn) {
3553                 return NT_STATUS_INVALID_PARAMETER;
3554         }
3555
3556         policy_attr = get_account_policy_attr(policy_index);
3557         if (!policy_attr) {
3558                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3559                          "policy index: %d\n", policy_index));
3560                 return ntstatus;
3561         }
3562
3563         attrs[0] = policy_attr;
3564         attrs[1] = NULL;
3565
3566         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3567                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3568                             &result);
3569
3570         if (rc != LDAP_SUCCESS) {
3571                 return ntstatus;
3572         }
3573
3574         count = ldap_count_entries(priv2ld(ldap_state), result);
3575         if (count < 1) {
3576                 goto out;
3577         }
3578
3579         entry = ldap_first_entry(priv2ld(ldap_state), result);
3580         if (entry == NULL) {
3581                 goto out;
3582         }
3583
3584         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3585         if (vals == NULL) {
3586                 goto out;
3587         }
3588
3589         *value = (uint32)atol(vals[0]);
3590
3591         ntstatus = NT_STATUS_OK;
3592
3593 out:
3594         if (vals)
3595                 ldap_value_free(vals);
3596         ldap_msgfree(result);
3597
3598         return ntstatus;
3599 }
3600
3601 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3602
3603    - if user hasn't decided to use account policies inside LDAP just reuse the
3604      old tdb values
3605
3606    - if there is a valid cache entry, return that
3607    - if there is an LDAP entry, update cache and return
3608    - otherwise set to default, update cache and return
3609
3610    Guenther
3611 */
3612 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3613                                            int policy_index, uint32 *value)
3614 {
3615         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3616
3617         if (cache_account_policy_get(policy_index, value)) {
3618                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3619                           "cache\n"));
3620                 return NT_STATUS_OK;
3621         }
3622
3623         ntstatus = ldapsam_get_account_policy_from_ldap(methods, policy_index,
3624                                                         value);
3625         if (NT_STATUS_IS_OK(ntstatus)) {
3626                 goto update_cache;
3627         }
3628
3629         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
3630                   "ldap\n"));
3631
3632 #if 0
3633         /* should we automagically migrate old tdb value here ? */
3634         if (account_policy_get(policy_index, value))
3635                 goto update_ldap;
3636
3637         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
3638                   "default\n", policy_index));
3639 #endif
3640
3641         if (!account_policy_get_default(policy_index, value)) {
3642                 return ntstatus;
3643         }
3644
3645 /* update_ldap: */
3646
3647         ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
3648         if (!NT_STATUS_IS_OK(ntstatus)) {
3649                 return ntstatus;
3650         }
3651
3652  update_cache:
3653
3654         if (!cache_account_policy_set(policy_index, *value)) {
3655                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
3656                          "tdb as a cache\n"));
3657                 return NT_STATUS_UNSUCCESSFUL;
3658         }
3659
3660         return NT_STATUS_OK;
3661 }
3662
3663 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
3664                                     const DOM_SID *domain_sid,
3665                                     int num_rids,
3666                                     uint32 *rids,
3667                                     const char **names,
3668                                     enum lsa_SidType *attrs)
3669 {
3670         struct ldapsam_privates *ldap_state =
3671                 (struct ldapsam_privates *)methods->private_data;
3672         LDAPMessage *msg = NULL;
3673         LDAPMessage *entry;
3674         char *allsids = NULL;
3675         int i, rc, num_mapped;
3676         NTSTATUS result = NT_STATUS_NO_MEMORY;
3677         TALLOC_CTX *mem_ctx;
3678         LDAP *ld;
3679         BOOL is_builtin;
3680
3681         mem_ctx = talloc_new(NULL);
3682         if (mem_ctx == NULL) {
3683                 DEBUG(0, ("talloc_new failed\n"));
3684                 goto done;
3685         }
3686
3687         if (!sid_check_is_builtin(domain_sid) &&
3688             !sid_check_is_domain(domain_sid)) {
3689                 result = NT_STATUS_INVALID_PARAMETER;
3690                 goto done;
3691         }
3692
3693         for (i=0; i<num_rids; i++)
3694                 attrs[i] = SID_NAME_UNKNOWN;
3695
3696         allsids = talloc_strdup(mem_ctx, "");
3697         if (allsids == NULL) {
3698                 goto done;
3699         }
3700
3701         for (i=0; i<num_rids; i++) {
3702                 DOM_SID sid;
3703                 sid_compose(&sid, domain_sid, rids[i]);
3704                 allsids = talloc_asprintf_append(allsids, "(sambaSid=%s)",
3705                                                  sid_string_static(&sid));
3706                 if (allsids == NULL) {
3707                         goto done;
3708                 }
3709         }
3710
3711         /* First look for users */
3712
3713         {
3714                 char *filter;
3715                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
3716
3717                 filter = talloc_asprintf(
3718                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
3719                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
3720
3721                 if (filter == NULL) {
3722                         goto done;
3723                 }
3724
3725                 rc = smbldap_search(ldap_state->smbldap_state,
3726                                     lp_ldap_user_suffix(),
3727                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3728                                     &msg);
3729                 talloc_autofree_ldapmsg(mem_ctx, msg);
3730         }
3731
3732         if (rc != LDAP_SUCCESS)
3733                 goto done;
3734
3735         ld = ldap_state->smbldap_state->ldap_struct;
3736         num_mapped = 0;
3737
3738         for (entry = ldap_first_entry(ld, msg);
3739              entry != NULL;
3740              entry = ldap_next_entry(ld, entry)) {
3741                 uint32 rid;
3742                 int rid_index;
3743                 const char *name;
3744
3745                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3746                                                     &rid)) {
3747                         DEBUG(2, ("Could not find sid from ldap entry\n"));
3748                         continue;
3749                 }
3750
3751                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
3752                                                        names);
3753                 if (name == NULL) {
3754                         DEBUG(2, ("Could not retrieve uid attribute\n"));
3755                         continue;
3756                 }
3757
3758                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3759                         if (rid == rids[rid_index])
3760                                 break;
3761                 }
3762
3763                 if (rid_index == num_rids) {
3764                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3765                         continue;
3766                 }
3767
3768                 attrs[rid_index] = SID_NAME_USER;
3769                 names[rid_index] = name;
3770                 num_mapped += 1;
3771         }
3772
3773         if (num_mapped == num_rids) {
3774                 /* No need to look for groups anymore -- we're done */
3775                 result = NT_STATUS_OK;
3776                 goto done;
3777         }
3778
3779         /* Same game for groups */
3780
3781         {
3782                 char *filter;
3783                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
3784                                              "sambaGroupType", NULL };
3785
3786                 filter = talloc_asprintf(
3787                         mem_ctx, "(&(objectClass=%s)(|%s))",
3788                         LDAP_OBJ_GROUPMAP, allsids);
3789                 if (filter == NULL) {
3790                         goto done;
3791                 }
3792
3793                 rc = smbldap_search(ldap_state->smbldap_state,
3794                                     lp_ldap_group_suffix(),
3795                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3796                                     &msg);
3797                 talloc_autofree_ldapmsg(mem_ctx, msg);
3798         }
3799
3800         if (rc != LDAP_SUCCESS)
3801                 goto done;
3802
3803         /* ldap_struct might have changed due to a reconnect */
3804
3805         ld = ldap_state->smbldap_state->ldap_struct;
3806
3807         /* For consistency checks, we already checked we're only domain or builtin */
3808
3809         is_builtin = sid_check_is_builtin(domain_sid);
3810
3811         for (entry = ldap_first_entry(ld, msg);
3812              entry != NULL;
3813              entry = ldap_next_entry(ld, entry))
3814         {
3815                 uint32 rid;
3816                 int rid_index;
3817                 const char *attr;
3818                 enum lsa_SidType type;
3819                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
3820
3821                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
3822                                                        mem_ctx);
3823                 if (attr == NULL) {
3824                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
3825                                   dn));
3826                         continue;
3827                 }
3828
3829                 type = (enum lsa_SidType)atol(attr);
3830
3831                 /* Consistency checks */
3832                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
3833                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
3834                                      (type != SID_NAME_DOM_GRP)))) {
3835                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
3836                 }
3837
3838                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3839                                                     &rid)) {
3840                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
3841                         continue;
3842                 }
3843
3844                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
3845
3846                 if (attr == NULL) {
3847                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
3848                                    dn));
3849                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
3850                 }
3851
3852                 if (attr == NULL) {
3853                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
3854                                   dn));
3855                         continue;
3856                 }
3857
3858                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3859                         if (rid == rids[rid_index])
3860                                 break;
3861                 }
3862
3863                 if (rid_index == num_rids) {
3864                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3865                         continue;
3866                 }
3867
3868                 attrs[rid_index] = type;
3869                 names[rid_index] = attr;
3870                 num_mapped += 1;
3871         }
3872
3873         result = NT_STATUS_NONE_MAPPED;
3874
3875         if (num_mapped > 0)
3876                 result = (num_mapped == num_rids) ?
3877                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
3878  done:
3879         TALLOC_FREE(mem_ctx);
3880         return result;
3881 }
3882
3883 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
3884 {
3885         char *filter = NULL;
3886         char *escaped = NULL;
3887         char *result = NULL;
3888
3889         asprintf(&filter, "(&%s(objectclass=sambaSamAccount))",
3890                  "(uid=%u)");
3891         if (filter == NULL) goto done;
3892
3893         escaped = escape_ldap_string_alloc(username);
3894         if (escaped == NULL) goto done;
3895
3896         result = talloc_string_sub(mem_ctx, filter, "%u", username);
3897
3898  done:
3899         SAFE_FREE(filter);
3900         SAFE_FREE(escaped);
3901
3902         return result;
3903 }
3904
3905 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
3906 {
3907         int i, num = 0;
3908         va_list ap;
3909         const char **result;
3910
3911         va_start(ap, mem_ctx);
3912         while (va_arg(ap, const char *) != NULL)
3913                 num += 1;
3914         va_end(ap);
3915
3916         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
3917                 return NULL;
3918         }
3919
3920         va_start(ap, mem_ctx);
3921         for (i=0; i<num; i++) {
3922                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
3923                 if (result[i] == NULL) {
3924                         talloc_free(result);
3925                         return NULL;
3926                 }
3927         }
3928         va_end(ap);
3929
3930         result[num] = NULL;
3931         return result;
3932 }
3933
3934 struct ldap_search_state {
3935         struct smbldap_state *connection;
3936
3937         uint32 acct_flags;
3938         uint16 group_type;
3939
3940         const char *base;
3941         int scope;
3942         const char *filter;
3943         const char **attrs;
3944         int attrsonly;
3945         void *pagedresults_cookie;
3946
3947         LDAPMessage *entries, *current_entry;
3948         BOOL (*ldap2displayentry)(struct ldap_search_state *state,
3949                                   TALLOC_CTX *mem_ctx,
3950                                   LDAP *ld, LDAPMessage *entry,
3951                                   struct samr_displayentry *result);
3952 };
3953
3954 static BOOL ldapsam_search_firstpage(struct pdb_search *search)
3955 {
3956         struct ldap_search_state *state =
3957                 (struct ldap_search_state *)search->private_data;
3958         LDAP *ld;
3959         int rc = LDAP_OPERATIONS_ERROR;
3960
3961         state->entries = NULL;
3962
3963         if (state->connection->paged_results) {
3964                 rc = smbldap_search_paged(state->connection, state->base,
3965                                           state->scope, state->filter,
3966                                           state->attrs, state->attrsonly,
3967                                           lp_ldap_page_size(), &state->entries,
3968                                           &state->pagedresults_cookie);
3969         }
3970
3971         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
3972
3973                 if (state->entries != NULL) {
3974                         /* Left over from unsuccessful paged attempt */
3975                         ldap_msgfree(state->entries);
3976                         state->entries = NULL;
3977                 }
3978
3979                 rc = smbldap_search(state->connection, state->base,
3980                                     state->scope, state->filter, state->attrs,
3981                                     state->attrsonly, &state->entries);
3982
3983                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
3984                         return False;
3985
3986                 /* Ok, the server was lying. It told us it could do paged
3987                  * searches when it could not. */
3988                 state->connection->paged_results = False;
3989         }
3990
3991         ld = state->connection->ldap_struct;
3992         if ( ld == NULL) {
3993                 DEBUG(5, ("Don't have an LDAP connection right after a "
3994                           "search\n"));
3995                 return False;
3996         }
3997         state->current_entry = ldap_first_entry(ld, state->entries);
3998
3999         if (state->current_entry == NULL) {
4000                 ldap_msgfree(state->entries);
4001                 state->entries = NULL;
4002         }
4003
4004         return True;
4005 }
4006
4007 static BOOL ldapsam_search_nextpage(struct pdb_search *search)
4008 {
4009         struct ldap_search_state *state =
4010                 (struct ldap_search_state *)search->private_data;
4011         int rc;
4012
4013         if (!state->connection->paged_results) {
4014                 /* There is no next page when there are no paged results */
4015                 return False;
4016         }
4017
4018         rc = smbldap_search_paged(state->connection, state->base,
4019                                   state->scope, state->filter, state->attrs,
4020                                   state->attrsonly, lp_ldap_page_size(),
4021                                   &state->entries,
4022                                   &state->pagedresults_cookie);
4023
4024         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4025                 return False;
4026
4027         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4028
4029         if (state->current_entry == NULL) {
4030                 ldap_msgfree(state->entries);
4031                 state->entries = NULL;
4032         }
4033
4034         return True;
4035 }
4036
4037 static BOOL ldapsam_search_next_entry(struct pdb_search *search,
4038                                       struct samr_displayentry *entry)
4039 {
4040         struct ldap_search_state *state =
4041                 (struct ldap_search_state *)search->private_data;
4042         BOOL result;
4043
4044  retry:
4045         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4046                 return False;
4047
4048         if ((state->entries == NULL) &&
4049             !ldapsam_search_nextpage(search))
4050                     return False;
4051
4052         result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
4053                                           state->current_entry, entry);
4054
4055         if (!result) {
4056                 char *dn;
4057                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4058                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4059                 if (dn != NULL) ldap_memfree(dn);
4060         }
4061
4062         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4063
4064         if (state->current_entry == NULL) {
4065                 ldap_msgfree(state->entries);
4066                 state->entries = NULL;
4067         }
4068
4069         if (!result) goto retry;
4070
4071         return True;
4072 }
4073
4074 static void ldapsam_search_end(struct pdb_search *search)
4075 {
4076         struct ldap_search_state *state =
4077                 (struct ldap_search_state *)search->private_data;
4078         int rc;
4079
4080         if (state->pagedresults_cookie == NULL)
4081                 return;
4082
4083         if (state->entries != NULL)
4084                 ldap_msgfree(state->entries);
4085
4086         state->entries = NULL;
4087         state->current_entry = NULL;
4088
4089         if (!state->connection->paged_results)
4090                 return;
4091
4092         /* Tell the LDAP server we're not interested in the rest anymore. */
4093
4094         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4095                                   state->filter, state->attrs,
4096                                   state->attrsonly, 0, &state->entries,
4097                                   &state->pagedresults_cookie);
4098
4099         if (rc != LDAP_SUCCESS)
4100                 DEBUG(5, ("Could not end search properly\n"));
4101
4102         return;
4103 }
4104
4105 static BOOL ldapuser2displayentry(struct ldap_search_state *state,
4106                                   TALLOC_CTX *mem_ctx,
4107                                   LDAP *ld, LDAPMessage *entry,
4108                                   struct samr_displayentry *result)
4109 {
4110         char **vals;
4111         DOM_SID sid;
4112         uint32 acct_flags;
4113
4114         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4115         if ((vals == NULL) || (vals[0] == NULL)) {
4116                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4117                 return False;
4118         }
4119         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4120         ldap_value_free(vals);
4121
4122         if ((state->acct_flags != 0) &&
4123             ((state->acct_flags & acct_flags) == 0))
4124                 return False;
4125
4126         result->acct_flags = acct_flags;
4127         result->account_name = "";
4128         result->fullname = "";
4129         result->description = "";
4130
4131         vals = ldap_get_values(ld, entry, "uid");
4132         if ((vals == NULL) || (vals[0] == NULL)) {
4133                 DEBUG(5, ("\"uid\" not found\n"));
4134                 return False;
4135         }
4136         pull_utf8_talloc(mem_ctx,
4137                          CONST_DISCARD(char **, &result->account_name),
4138                          vals[0]);
4139         ldap_value_free(vals);
4140
4141         vals = ldap_get_values(ld, entry, "displayName");
4142         if ((vals == NULL) || (vals[0] == NULL))
4143                 DEBUG(8, ("\"displayName\" not found\n"));
4144         else
4145                 pull_utf8_talloc(mem_ctx,
4146                                  CONST_DISCARD(char **, &result->fullname),
4147                                  vals[0]);
4148         ldap_value_free(vals);
4149
4150         vals = ldap_get_values(ld, entry, "description");
4151         if ((vals == NULL) || (vals[0] == NULL))
4152                 DEBUG(8, ("\"description\" not found\n"));
4153         else
4154                 pull_utf8_talloc(mem_ctx,
4155                                  CONST_DISCARD(char **, &result->description),
4156                                  vals[0]);
4157         ldap_value_free(vals);
4158
4159         if ((result->account_name == NULL) ||
4160             (result->fullname == NULL) ||
4161             (result->description == NULL)) {
4162                 DEBUG(0, ("talloc failed\n"));
4163                 return False;
4164         }
4165
4166         vals = ldap_get_values(ld, entry, "sambaSid");
4167         if ((vals == NULL) || (vals[0] == NULL)) {
4168                 DEBUG(0, ("\"objectSid\" not found\n"));
4169                 return False;
4170         }
4171
4172         if (!string_to_sid(&sid, vals[0])) {
4173                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4174                 ldap_value_free(vals);
4175                 return False;
4176         }
4177         ldap_value_free(vals);
4178
4179         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4180                 DEBUG(0, ("sid %s does not belong to our domain\n",
4181                           sid_string_static(&sid)));
4182                 return False;
4183         }
4184
4185         return True;
4186 }
4187
4188
4189 static BOOL ldapsam_search_users(struct pdb_methods *methods,
4190                                  struct pdb_search *search,
4191                                  uint32 acct_flags)
4192 {
4193         struct ldapsam_privates *ldap_state =
4194                 (struct ldapsam_privates *)methods->private_data;
4195         struct ldap_search_state *state;
4196
4197         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4198         if (state == NULL) {
4199                 DEBUG(0, ("talloc failed\n"));
4200                 return False;
4201         }
4202
4203         state->connection = ldap_state->smbldap_state;
4204
4205         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4206                 state->base = lp_ldap_user_suffix();
4207         else if ((acct_flags != 0) &&
4208                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4209                 state->base = lp_ldap_machine_suffix();
4210         else
4211                 state->base = lp_ldap_suffix();
4212
4213         state->acct_flags = acct_flags;
4214         state->base = talloc_strdup(search->mem_ctx, state->base);
4215         state->scope = LDAP_SCOPE_SUBTREE;
4216         state->filter = get_ldap_filter(search->mem_ctx, "*");
4217         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4218                                     "displayName", "description",
4219                                     "sambaAcctFlags", NULL);
4220         state->attrsonly = 0;
4221         state->pagedresults_cookie = NULL;
4222         state->entries = NULL;
4223         state->ldap2displayentry = ldapuser2displayentry;
4224
4225         if ((state->filter == NULL) || (state->attrs == NULL)) {
4226                 DEBUG(0, ("talloc failed\n"));
4227                 return False;
4228         }
4229
4230         search->private_data = state;
4231         search->next_entry = ldapsam_search_next_entry;
4232         search->search_end = ldapsam_search_end;
4233
4234         return ldapsam_search_firstpage(search);
4235 }
4236
4237 static BOOL ldapgroup2displayentry(struct ldap_search_state *state,
4238                                    TALLOC_CTX *mem_ctx,
4239                                    LDAP *ld, LDAPMessage *entry,
4240                                    struct samr_displayentry *result)
4241 {
4242         char **vals;
4243         DOM_SID sid;
4244         uint16 group_type;
4245
4246         result->account_name = "";
4247         result->fullname = "";
4248         result->description = "";
4249
4250
4251         vals = ldap_get_values(ld, entry, "sambaGroupType");
4252         if ((vals == NULL) || (vals[0] == NULL)) {
4253                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4254                 if (vals != NULL) {
4255                         ldap_value_free(vals);
4256                 }
4257                 return False;
4258         }
4259
4260         group_type = atoi(vals[0]);
4261
4262         if ((state->group_type != 0) &&
4263             ((state->group_type != group_type))) {
4264                 ldap_value_free(vals);
4265                 return False;
4266         }
4267
4268         ldap_value_free(vals);
4269
4270         /* display name is the NT group name */
4271
4272         vals = ldap_get_values(ld, entry, "displayName");
4273         if ((vals == NULL) || (vals[0] == NULL)) {
4274                 DEBUG(8, ("\"displayName\" not found\n"));
4275
4276                 /* fallback to the 'cn' attribute */
4277                 vals = ldap_get_values(ld, entry, "cn");
4278                 if ((vals == NULL) || (vals[0] == NULL)) {
4279                         DEBUG(5, ("\"cn\" not found\n"));
4280                         return False;
4281                 }
4282                 pull_utf8_talloc(mem_ctx,
4283                                  CONST_DISCARD(char **, &result->account_name),
4284                                  vals[0]);
4285         }
4286         else {
4287                 pull_utf8_talloc(mem_ctx,
4288                                  CONST_DISCARD(char **, &result->account_name),
4289                                  vals[0]);
4290         }
4291
4292         ldap_value_free(vals);
4293
4294         vals = ldap_get_values(ld, entry, "description");
4295         if ((vals == NULL) || (vals[0] == NULL))
4296                 DEBUG(8, ("\"description\" not found\n"));
4297         else
4298                 pull_utf8_talloc(mem_ctx,
4299                                  CONST_DISCARD(char **, &result->description),
4300                                  vals[0]);
4301         ldap_value_free(vals);
4302
4303         if ((result->account_name == NULL) ||
4304             (result->fullname == NULL) ||
4305             (result->description == NULL)) {
4306                 DEBUG(0, ("talloc failed\n"));
4307                 return False;
4308         }
4309
4310         vals = ldap_get_values(ld, entry, "sambaSid");
4311         if ((vals == NULL) || (vals[0] == NULL)) {
4312                 DEBUG(0, ("\"objectSid\" not found\n"));
4313                 if (vals != NULL) {
4314                         ldap_value_free(vals);
4315                 }
4316                 return False;
4317         }
4318
4319         if (!string_to_sid(&sid, vals[0])) {
4320                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4321                 return False;
4322         }
4323
4324         ldap_value_free(vals);
4325
4326         switch (group_type) {
4327                 case SID_NAME_DOM_GRP:
4328                 case SID_NAME_ALIAS:
4329
4330                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4331                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4332                         {
4333                                 DEBUG(0, ("%s is not in our domain\n",
4334                                           sid_string_static(&sid)));
4335                                 return False;
4336                         }
4337                         break;
4338
4339                 default:
4340                         DEBUG(0,("unkown group type: %d\n", group_type));
4341                         return False;
4342         }
4343
4344         return True;
4345 }
4346
4347 static BOOL ldapsam_search_grouptype(struct pdb_methods *methods,
4348                                      struct pdb_search *search,
4349                                      const DOM_SID *sid,
4350                                      enum lsa_SidType type)
4351 {
4352         struct ldapsam_privates *ldap_state =
4353                 (struct ldapsam_privates *)methods->private_data;
4354         struct ldap_search_state *state;
4355
4356         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4357         if (state == NULL) {
4358                 DEBUG(0, ("talloc failed\n"));
4359                 return False;
4360         }
4361
4362         state->connection = ldap_state->smbldap_state;
4363
4364         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4365         state->connection = ldap_state->smbldap_state;
4366         state->scope = LDAP_SCOPE_SUBTREE;
4367         state->filter = talloc_asprintf(search->mem_ctx,
4368                                         "(&(objectclass=sambaGroupMapping)"
4369                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4370                                         type, sid_string_static(sid));
4371         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4372                                     "displayName", "description",
4373                                     "sambaGroupType", NULL);
4374         state->attrsonly = 0;
4375         state->pagedresults_cookie = NULL;
4376         state->entries = NULL;
4377         state->group_type = type;
4378         state->ldap2displayentry = ldapgroup2displayentry;
4379
4380         if ((state->filter == NULL) || (state->attrs == NULL)) {
4381                 DEBUG(0, ("talloc failed\n"));
4382                 return False;
4383         }
4384
4385         search->private_data = state;
4386         search->next_entry = ldapsam_search_next_entry;
4387         search->search_end = ldapsam_search_end;
4388
4389         return ldapsam_search_firstpage(search);
4390 }
4391
4392 static BOOL ldapsam_search_groups(struct pdb_methods *methods,
4393                                   struct pdb_search *search)
4394 {
4395         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4396 }
4397
4398 static BOOL ldapsam_search_aliases(struct pdb_methods *methods,
4399                                    struct pdb_search *search,
4400                                    const DOM_SID *sid)
4401 {
4402         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4403 }
4404
4405 static BOOL ldapsam_rid_algorithm(struct pdb_methods *methods)
4406 {
4407         return False;
4408 }
4409
4410 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4411                                     uint32 *rid)
4412 {
4413         struct smbldap_state *smbldap_state = priv->smbldap_state;
4414
4415         LDAPMessage *result = NULL;
4416         LDAPMessage *entry = NULL;
4417         LDAPMod **mods = NULL;
4418         NTSTATUS status;
4419         char *value;
4420         int rc;
4421         uint32 nextRid = 0;
4422         const char *dn;
4423
4424         TALLOC_CTX *mem_ctx;
4425
4426         mem_ctx = talloc_new(NULL);
4427         if (mem_ctx == NULL) {
4428                 DEBUG(0, ("talloc_new failed\n"));
4429                 return NT_STATUS_NO_MEMORY;
4430         }
4431
4432         status = smbldap_search_domain_info(smbldap_state, &result,
4433                                             get_global_sam_name(), False);
4434         if (!NT_STATUS_IS_OK(status)) {
4435                 DEBUG(3, ("Could not get domain info: %s\n",
4436                           nt_errstr(status)));
4437                 goto done;
4438         }
4439
4440         talloc_autofree_ldapmsg(mem_ctx, result);
4441
4442         entry = ldap_first_entry(priv2ld(priv), result);
4443         if (entry == NULL) {
4444                 DEBUG(0, ("Could not get domain info entry\n"));
4445                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4446                 goto done;
4447         }
4448
4449         /* Find the largest of the three attributes "sambaNextRid",
4450            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4451            concept of differentiating between user and group rids, and will
4452            use only "sambaNextRid" in the future. But for compatibility
4453            reasons I look if others have chosen different strategies -- VL */
4454
4455         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4456                                                 "sambaNextRid", mem_ctx);
4457         if (value != NULL) {
4458                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4459                 nextRid = MAX(nextRid, tmp);
4460         }
4461
4462         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4463                                                 "sambaNextUserRid", mem_ctx);
4464         if (value != NULL) {
4465                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4466                 nextRid = MAX(nextRid, tmp);
4467         }
4468
4469         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4470                                                 "sambaNextGroupRid", mem_ctx);
4471         if (value != NULL) {
4472                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4473                 nextRid = MAX(nextRid, tmp);
4474         }
4475
4476         if (nextRid == 0) {
4477                 nextRid = BASE_RID-1;
4478         }
4479
4480         nextRid += 1;
4481
4482         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4483                          talloc_asprintf(mem_ctx, "%d", nextRid));
4484         talloc_autofree_ldapmod(mem_ctx, mods);
4485
4486         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4487                 status = NT_STATUS_NO_MEMORY;
4488                 goto done;
4489         }
4490
4491         rc = smbldap_modify(smbldap_state, dn, mods);
4492
4493         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4494          * please retry" */
4495
4496         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4497
4498  done:
4499         if (NT_STATUS_IS_OK(status)) {
4500                 *rid = nextRid;
4501         }
4502
4503         TALLOC_FREE(mem_ctx);
4504         return status;
4505 }
4506
4507 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4508 {
4509         int i;
4510
4511         for (i=0; i<10; i++) {
4512                 NTSTATUS result = ldapsam_get_new_rid(
4513                         (struct ldapsam_privates *)methods->private_data, rid);
4514                 if (NT_STATUS_IS_OK(result)) {
4515                         return result;
4516                 }
4517
4518                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4519                         return result;
4520                 }
4521
4522                 /* The ldap update failed (maybe a race condition), retry */
4523         }
4524
4525         /* Tried 10 times, fail. */
4526         return NT_STATUS_ACCESS_DENIED;
4527 }
4528
4529 static BOOL ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4530 {
4531         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4532         return NT_STATUS_IS_OK(result) ? True : False;
4533 }
4534
4535 static BOOL ldapsam_sid_to_id(struct pdb_methods *methods,
4536                               const DOM_SID *sid,
4537                               union unid_t *id, enum lsa_SidType *type)
4538 {
4539         struct ldapsam_privates *priv =
4540                 (struct ldapsam_privates *)methods->private_data;
4541         char *filter;
4542         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4543                                 NULL };
4544         LDAPMessage *result = NULL;
4545         LDAPMessage *entry = NULL;
4546         BOOL ret = False;
4547         char *value;
4548         int rc;
4549
4550         TALLOC_CTX *mem_ctx;
4551
4552         mem_ctx = talloc_new(NULL);
4553         if (mem_ctx == NULL) {
4554                 DEBUG(0, ("talloc_new failed\n"));
4555                 return False;
4556         }
4557
4558         filter = talloc_asprintf(mem_ctx,
4559                                  "(&(sambaSid=%s)"
4560                                  "(|(objectClass=%s)(objectClass=%s)))",
4561                                  sid_string_static(sid),
4562                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4563         if (filter == NULL) {
4564                 DEBUG(5, ("talloc_asprintf failed\n"));
4565                 goto done;
4566         }
4567
4568         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4569                                    attrs, &result);
4570         if (rc != LDAP_SUCCESS) {
4571                 goto done;
4572         }
4573         talloc_autofree_ldapmsg(mem_ctx, result);
4574
4575         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4576                 DEBUG(10, ("Got %d entries, expected one\n",
4577                            ldap_count_entries(priv2ld(priv), result)));
4578                 goto done;
4579         }
4580
4581         entry = ldap_first_entry(priv2ld(priv), result);
4582
4583         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4584                                                 "sambaGroupType", mem_ctx);
4585
4586         if (value != NULL) {
4587                 const char *gid_str;
4588                 /* It's a group */
4589
4590                 gid_str = smbldap_talloc_single_attribute(
4591                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4592                 if (gid_str == NULL) {
4593                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4594                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4595                                                     entry)));
4596                         goto done;
4597                 }
4598
4599                 id->gid = strtoul(gid_str, NULL, 10);
4600                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4601                 ret = True;
4602                 goto done;
4603         }
4604
4605         /* It must be a user */
4606
4607         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4608                                                 "uidNumber", mem_ctx);
4609         if (value == NULL) {
4610                 DEBUG(1, ("Could not find uidNumber in %s\n",
4611                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4612                 goto done;
4613         }
4614
4615         id->uid = strtoul(value, NULL, 10);
4616         *type = SID_NAME_USER;
4617
4618         ret = True;
4619  done:
4620         TALLOC_FREE(mem_ctx);
4621         return ret;
4622 }
4623
4624 /*
4625  * The following functions is called only if
4626  * ldapsam:trusted and ldapsam:editposix are
4627  * set to true
4628  */
4629
4630 /*
4631  * ldapsam_create_user creates a new
4632  * posixAccount and sambaSamAccount object
4633  * in the ldap users subtree
4634  *
4635  * The uid is allocated by winbindd.
4636  */
4637
4638 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
4639                                     TALLOC_CTX *tmp_ctx, const char *name,
4640                                     uint32 acb_info, uint32 *rid)
4641 {
4642         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4643         LDAPMessage *entry = NULL;
4644         LDAPMessage *result = NULL;
4645         uint32 num_result;
4646         BOOL is_machine = False;
4647         BOOL add_posix = False;
4648         LDAPMod **mods = NULL;
4649         struct samu *user;
4650         char *filter;
4651         char *username;
4652         char *homedir;
4653         char *gidstr;
4654         char *uidstr;
4655         char *shell;
4656         const char *dn = NULL;
4657         DOM_SID group_sid;
4658         DOM_SID user_sid;
4659         gid_t gid = -1;
4660         uid_t uid = -1;
4661         NTSTATUS ret;
4662         int rc;
4663
4664         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
4665               acb_info & ACB_WSTRUST ||
4666               acb_info & ACB_SVRTRUST ||
4667               acb_info & ACB_DOMTRUST) {
4668                 is_machine = True;
4669         }
4670
4671         username = escape_ldap_string_alloc(name);
4672         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
4673                                  username, LDAP_OBJ_POSIXACCOUNT);
4674         SAFE_FREE(username);
4675
4676         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4677         if (rc != LDAP_SUCCESS) {
4678                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
4679                 return NT_STATUS_UNSUCCESSFUL;
4680         }
4681         talloc_autofree_ldapmsg(tmp_ctx, result);
4682
4683         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4684
4685         if (num_result > 1) {
4686                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
4687                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4688         }
4689
4690         if (num_result == 1) {
4691                 char *tmp;
4692                 /* check if it is just a posix account.
4693                  * or if there is a sid attached to this entry
4694                  */
4695
4696                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4697                 if (!entry) {
4698                         return NT_STATUS_UNSUCCESSFUL;
4699                 }
4700
4701                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
4702                 if (tmp) {
4703                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
4704                         return NT_STATUS_USER_EXISTS;
4705                 }
4706
4707                 /* it is just a posix account, retrieve the dn for later use */
4708                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4709                 if (!dn) {
4710                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
4711                         return NT_STATUS_NO_MEMORY;
4712                 }
4713         }
4714
4715         if (num_result == 0) {
4716                 add_posix = True;
4717         }
4718
4719         /* Create the basic samu structure and generate the mods for the ldap commit */
4720         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
4721                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
4722                 return ret;
4723         }
4724
4725         sid_compose(&user_sid, get_global_sam_sid(), *rid);
4726
4727         user = samu_new(tmp_ctx);
4728         if (!user) {
4729                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
4730                 return NT_STATUS_NO_MEMORY;
4731         }
4732
4733         if (!pdb_set_username(user, name, PDB_SET)) {
4734                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4735                 return NT_STATUS_UNSUCCESSFUL;
4736         }
4737         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
4738                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4739                 return NT_STATUS_UNSUCCESSFUL;
4740         }
4741         if (is_machine) {
4742                 if (acb_info & ACB_NORMAL) {
4743                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
4744                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4745                                 return NT_STATUS_UNSUCCESSFUL;
4746                         }
4747                 } else {
4748                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
4749                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4750                                 return NT_STATUS_UNSUCCESSFUL;
4751                         }
4752                 }
4753         } else {
4754                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
4755                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4756                         return NT_STATUS_UNSUCCESSFUL;
4757                 }
4758         }
4759
4760         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
4761                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4762                 return NT_STATUS_UNSUCCESSFUL;
4763         }
4764
4765         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
4766                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4767                 return NT_STATUS_UNSUCCESSFUL;
4768         }
4769
4770         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
4771                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
4772         }
4773         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
4774
4775         if (add_posix) {
4776                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
4777
4778                 /* retrieve the Domain Users group gid */
4779                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
4780                     !sid_to_gid(&group_sid, &gid)) {
4781                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
4782                         return NT_STATUS_INVALID_PRIMARY_GROUP;
4783                 }
4784
4785                 /* lets allocate a new userid for this user */
4786                 if (!winbind_allocate_uid(&uid)) {
4787                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
4788                         return NT_STATUS_UNSUCCESSFUL;
4789                 }
4790
4791
4792                 if (is_machine) {
4793                         /* TODO: choose a more appropriate default for machines */
4794                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
4795                         shell = talloc_strdup(tmp_ctx, "/bin/false");
4796                 } else {
4797                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
4798                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
4799                 }
4800                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
4801                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
4802                 if (is_machine) {
4803                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_machine_suffix ());
4804                 } else {
4805                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_user_suffix ());
4806                 }
4807
4808                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
4809                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
4810                         return NT_STATUS_NO_MEMORY;
4811                 }
4812
4813                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
4814                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
4815                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
4816                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
4817                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
4818                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
4819                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
4820         }
4821
4822         talloc_autofree_ldapmod(tmp_ctx, mods);
4823
4824         if (add_posix) {
4825                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
4826         } else {
4827                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
4828         }
4829
4830         if (rc != LDAP_SUCCESS) {
4831                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
4832                 return NT_STATUS_UNSUCCESSFUL;
4833         }
4834
4835         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
4836
4837         flush_pwnam_cache();
4838
4839         return NT_STATUS_OK;
4840 }
4841
4842 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
4843 {
4844         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4845         LDAPMessage *result = NULL;
4846         LDAPMessage *entry = NULL;
4847         int num_result;
4848         const char *dn;
4849         char *filter;
4850         int rc;
4851
4852         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
4853
4854         filter = talloc_asprintf(tmp_ctx,
4855                                  "(&(uid=%s)"
4856                                  "(objectClass=%s)"
4857                                  "(objectClass=%s))",
4858                                  pdb_get_username(sam_acct),
4859                                  LDAP_OBJ_POSIXACCOUNT,
4860                                  LDAP_OBJ_SAMBASAMACCOUNT);
4861         if (filter == NULL) {
4862                 return NT_STATUS_NO_MEMORY;
4863         }
4864
4865         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4866         if (rc != LDAP_SUCCESS) {
4867                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
4868                 return NT_STATUS_UNSUCCESSFUL;
4869         }
4870         talloc_autofree_ldapmsg(tmp_ctx, result);
4871
4872         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4873
4874         if (num_result == 0) {
4875                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
4876                 return NT_STATUS_NO_SUCH_USER;
4877         }
4878
4879         if (num_result > 1) {
4880                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
4881                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4882         }
4883
4884         entry = ldap_first_entry(priv2ld(ldap_state), result);
4885         if (!entry) {
4886                 return NT_STATUS_UNSUCCESSFUL;
4887         }
4888
4889         /* it is just a posix account, retrieve the dn for later use */
4890         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4891         if (!dn) {
4892                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
4893                 return NT_STATUS_NO_MEMORY;
4894         }
4895
4896         rc = smbldap_delete(ldap_state->smbldap_state, dn);
4897         if (rc != LDAP_SUCCESS) {
4898                 return NT_STATUS_UNSUCCESSFUL;
4899         }
4900
4901         flush_pwnam_cache();
4902
4903         return NT_STATUS_OK;
4904 }
4905
4906 /*
4907  * ldapsam_create_group creates a new
4908  * posixGroup and sambaGroupMapping object
4909  * in the ldap groups subtree
4910  *
4911  * The gid is allocated by winbindd.
4912  */
4913
4914 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
4915                                          TALLOC_CTX *tmp_ctx,
4916                                          const char *name,
4917                                          uint32 *rid)
4918 {
4919         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4920         NTSTATUS ret;
4921         LDAPMessage *entry = NULL;
4922         LDAPMessage *result = NULL;
4923         uint32 num_result;
4924         BOOL is_new_entry = False;
4925         LDAPMod **mods = NULL;
4926         char *filter;
4927         char *groupsidstr;
4928         char *groupname;
4929         char *grouptype;
4930         char *gidstr;
4931         const char *dn = NULL;
4932         DOM_SID group_sid;
4933         gid_t gid = -1;
4934         int rc;
4935
4936         groupname = escape_ldap_string_alloc(name);
4937         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
4938                                  groupname, LDAP_OBJ_POSIXGROUP);
4939         SAFE_FREE(groupname);
4940
4941         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4942         if (rc != LDAP_SUCCESS) {
4943                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
4944                 return NT_STATUS_UNSUCCESSFUL;
4945         }
4946         talloc_autofree_ldapmsg(tmp_ctx, result);
4947
4948         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4949
4950         if (num_result > 1) {
4951                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
4952                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4953         }
4954
4955         if (num_result == 1) {
4956                 char *tmp;
4957                 /* check if it is just a posix group.
4958                  * or if there is a sid attached to this entry
4959                  */
4960
4961                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4962                 if (!entry) {
4963                         return NT_STATUS_UNSUCCESSFUL;
4964                 }
4965
4966                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
4967                 if (tmp) {
4968                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
4969                         return NT_STATUS_GROUP_EXISTS;
4970                 }
4971
4972                 /* it is just a posix group, retrieve the gid and the dn for later use */
4973                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
4974                 if (!tmp) {
4975                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
4976                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
4977                 }
4978
4979                 gid = strtoul(tmp, NULL, 10);
4980
4981                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4982                 if (!dn) {
4983                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
4984                         return NT_STATUS_NO_MEMORY;
4985                 }
4986         }
4987
4988         if (num_result == 0) {
4989                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
4990
4991                 is_new_entry = True;
4992
4993                 /* lets allocate a new groupid for this group */
4994                 if (!winbind_allocate_gid(&gid)) {
4995                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
4996                         return NT_STATUS_UNSUCCESSFUL;
4997                 }
4998
4999                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5000                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", name, lp_ldap_group_suffix());
5001
5002                 if (!gidstr || !dn) {
5003                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5004                         return NT_STATUS_NO_MEMORY;
5005                 }
5006
5007                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5008                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5009                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5010         }
5011
5012         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5013                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5014                 return ret;
5015         }
5016
5017         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5018
5019         groupsidstr = talloc_strdup(tmp_ctx, sid_string_static(&group_sid));
5020         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5021
5022         if (!groupsidstr || !grouptype) {
5023                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5024                 return NT_STATUS_NO_MEMORY;
5025         }
5026
5027         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5028         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5029         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5030         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5031         talloc_autofree_ldapmod(tmp_ctx, mods);
5032
5033         if (is_new_entry) {
5034                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5035 #if 0
5036                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5037                         /* This call may fail with rfc2307bis schema */
5038                         /* Retry adding a structural class */
5039                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5040                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5041                 }
5042 #endif
5043         } else {
5044                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5045         }
5046
5047         if (rc != LDAP_SUCCESS) {
5048                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5049                 return NT_STATUS_UNSUCCESSFUL;
5050         }
5051
5052         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5053
5054         return NT_STATUS_OK;
5055 }
5056
5057 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5058 {
5059         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5060         LDAPMessage *result = NULL;
5061         LDAPMessage *entry = NULL;
5062         int num_result;
5063         const char *dn;
5064         char *gidstr;
5065         char *filter;
5066         DOM_SID group_sid;
5067         int rc;
5068
5069         /* get the group sid */
5070         sid_compose(&group_sid, get_global_sam_sid(), rid);
5071
5072         filter = talloc_asprintf(tmp_ctx,
5073                                  "(&(sambaSID=%s)"
5074                                  "(objectClass=%s)"
5075                                  "(objectClass=%s))",
5076                                  sid_string_static(&group_sid),
5077                                  LDAP_OBJ_POSIXGROUP,
5078                                  LDAP_OBJ_GROUPMAP);
5079         if (filter == NULL) {
5080                 return NT_STATUS_NO_MEMORY;
5081         }
5082
5083         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5084         if (rc != LDAP_SUCCESS) {
5085                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5086                 return NT_STATUS_UNSUCCESSFUL;
5087         }
5088         talloc_autofree_ldapmsg(tmp_ctx, result);
5089
5090         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5091
5092         if (num_result == 0) {
5093                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5094                 return NT_STATUS_NO_SUCH_GROUP;
5095         }
5096
5097         if (num_result > 1) {
5098                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5099                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5100         }
5101
5102         entry = ldap_first_entry(priv2ld(ldap_state), result);
5103         if (!entry) {
5104                 return NT_STATUS_UNSUCCESSFUL;
5105         }
5106
5107         /* here it is, retrieve the dn for later use */
5108         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5109         if (!dn) {
5110                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5111                 return NT_STATUS_NO_MEMORY;
5112         }
5113
5114         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5115         if (!gidstr) {
5116                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5117                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5118         }
5119
5120         /* check no user have this group marked as primary group */
5121         filter = talloc_asprintf(tmp_ctx,
5122                                  "(&(gidNumber=%s)"
5123                                  "(objectClass=%s)"
5124                                  "(objectClass=%s))",
5125                                  gidstr,
5126                                  LDAP_OBJ_POSIXACCOUNT,
5127                                  LDAP_OBJ_SAMBASAMACCOUNT);
5128
5129         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5130         if (rc != LDAP_SUCCESS) {
5131                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5132                 return NT_STATUS_UNSUCCESSFUL;
5133         }
5134         talloc_autofree_ldapmsg(tmp_ctx, result);
5135
5136         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5137
5138         if (num_result != 0) {
5139                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5140                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5141         }
5142
5143         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5144         if (rc != LDAP_SUCCESS) {
5145                 return NT_STATUS_UNSUCCESSFUL;
5146         }
5147
5148         return NT_STATUS_OK;
5149 }
5150
5151 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5152                                         TALLOC_CTX *tmp_ctx,
5153                                         uint32 group_rid,
5154                                         uint32 member_rid,
5155                                         int modop)
5156 {
5157         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5158         LDAPMessage *entry = NULL;
5159         LDAPMessage *result = NULL;
5160         uint32 num_result;
5161         LDAPMod **mods = NULL;
5162         char *filter;
5163         char *uidstr;
5164         const char *dn = NULL;
5165         DOM_SID group_sid;
5166         DOM_SID member_sid;
5167         int rc;
5168
5169         switch (modop) {
5170         case LDAP_MOD_ADD:
5171                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5172                 break;
5173         case LDAP_MOD_DELETE:
5174                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5175                 break;
5176         default:
5177                 return NT_STATUS_UNSUCCESSFUL;
5178         }
5179
5180         /* get member sid  */
5181         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5182
5183         /* get the group sid */
5184         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5185
5186         filter = talloc_asprintf(tmp_ctx,
5187                                  "(&(sambaSID=%s)"
5188                                  "(objectClass=%s)"
5189                                  "(objectClass=%s))",
5190                                  sid_string_static(&member_sid),
5191                                  LDAP_OBJ_POSIXACCOUNT,
5192                                  LDAP_OBJ_SAMBASAMACCOUNT);
5193         if (filter == NULL) {
5194                 return NT_STATUS_NO_MEMORY;
5195         }
5196
5197         /* get the member uid */
5198         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5199         if (rc != LDAP_SUCCESS) {
5200                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5201                 return NT_STATUS_UNSUCCESSFUL;
5202         }
5203         talloc_autofree_ldapmsg(tmp_ctx, result);
5204
5205         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5206
5207         if (num_result == 0) {
5208                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5209                 return NT_STATUS_NO_SUCH_MEMBER;
5210         }
5211
5212         if (num_result > 1) {
5213                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5214                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5215         }
5216
5217         entry = ldap_first_entry(priv2ld(ldap_state), result);
5218         if (!entry) {
5219                 return NT_STATUS_UNSUCCESSFUL;
5220         }
5221
5222         if (modop == LDAP_MOD_DELETE) {
5223                 /* check if we are trying to remove the member from his primary group */
5224                 char *gidstr;
5225                 gid_t user_gid, group_gid;
5226
5227                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5228                 if (!gidstr) {
5229                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5230                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5231                 }
5232
5233                 user_gid = strtoul(gidstr, NULL, 10);
5234
5235                 if (!sid_to_gid(&group_sid, &group_gid)) {
5236                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5237                         return NT_STATUS_UNSUCCESSFUL;
5238                 }
5239
5240                 if (user_gid == group_gid) {
5241                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from it's own primary group!\n"));
5242                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5243                 }
5244         }
5245
5246         /* here it is, retrieve the uid for later use */
5247         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5248         if (!uidstr) {
5249                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5250                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5251         }
5252
5253         filter = talloc_asprintf(tmp_ctx,
5254                                  "(&(sambaSID=%s)"
5255                                  "(objectClass=%s)"
5256                                  "(objectClass=%s))",
5257                                  sid_string_static(&group_sid),
5258                                  LDAP_OBJ_POSIXGROUP,
5259                                  LDAP_OBJ_GROUPMAP);
5260
5261         /* get the group */
5262         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5263         if (rc != LDAP_SUCCESS) {
5264                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5265                 return NT_STATUS_UNSUCCESSFUL;
5266         }
5267         talloc_autofree_ldapmsg(tmp_ctx, result);
5268
5269         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5270
5271         if (num_result == 0) {
5272                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5273                 return NT_STATUS_NO_SUCH_GROUP;
5274         }
5275
5276         if (num_result > 1) {
5277                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5278                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5279         }
5280
5281         entry = ldap_first_entry(priv2ld(ldap_state), result);
5282         if (!entry) {
5283                 return NT_STATUS_UNSUCCESSFUL;
5284         }
5285
5286         /* here it is, retrieve the dn for later use */
5287         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5288         if (!dn) {
5289                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5290                 return NT_STATUS_NO_MEMORY;
5291         }
5292
5293         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5294
5295         talloc_autofree_ldapmod(tmp_ctx, mods);
5296
5297         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5298         if (rc != LDAP_SUCCESS) {
5299                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5300                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5301                         return NT_STATUS_MEMBER_IN_GROUP;
5302                 }
5303                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5304                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5305                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5306                 }
5307                 return NT_STATUS_UNSUCCESSFUL;
5308         }
5309
5310         return NT_STATUS_OK;
5311 }
5312
5313 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5314                                      TALLOC_CTX *tmp_ctx,
5315                                      uint32 group_rid,
5316                                      uint32 member_rid)
5317 {
5318         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5319 }
5320 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5321                                      TALLOC_CTX *tmp_ctx,
5322                                      uint32 group_rid,
5323                                      uint32 member_rid)
5324 {
5325         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5326 }
5327
5328 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5329                                           TALLOC_CTX *mem_ctx,
5330                                           struct samu *sampass)
5331 {
5332         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5333         LDAPMessage *entry = NULL;
5334         LDAPMessage *result = NULL;
5335         uint32 num_result;
5336         LDAPMod **mods = NULL;
5337         char *filter;
5338         char *gidstr;
5339         const char *dn = NULL;
5340         gid_t gid;
5341         int rc;
5342
5343         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5344
5345         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5346                 DEBUG(0,("ldapsam_set_primary_group: failed to retieve gid from user's group SID!\n"));
5347                 return NT_STATUS_UNSUCCESSFUL;
5348         }
5349         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5350         if (!gidstr) {
5351                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5352                 return NT_STATUS_NO_MEMORY;
5353         }
5354
5355         filter = talloc_asprintf(mem_ctx,
5356                                  "(&(uid=%s)"
5357                                  "(objectClass=%s)"
5358                                  "(objectClass=%s))",
5359                                  pdb_get_username(sampass),
5360                                  LDAP_OBJ_POSIXACCOUNT,
5361                                  LDAP_OBJ_SAMBASAMACCOUNT);
5362         if (filter == NULL) {
5363                 return NT_STATUS_NO_MEMORY;
5364         }
5365
5366         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5367         if (rc != LDAP_SUCCESS) {
5368                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5369                 return NT_STATUS_UNSUCCESSFUL;
5370         }
5371         talloc_autofree_ldapmsg(mem_ctx, result);
5372
5373         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5374
5375         if (num_result == 0) {
5376                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5377                 return NT_STATUS_NO_SUCH_USER;
5378         }
5379
5380         if (num_result > 1) {
5381                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5382                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5383         }
5384
5385         entry = ldap_first_entry(priv2ld(ldap_state), result);
5386         if (!entry) {
5387                 return NT_STATUS_UNSUCCESSFUL;
5388         }
5389
5390         /* retrieve the dn for later use */
5391         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5392         if (!dn) {
5393                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5394                 return NT_STATUS_NO_MEMORY;
5395         }
5396
5397         /* remove the old one, and add the new one, this way we do not risk races */
5398         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5399
5400         if (mods == NULL) {
5401                 return NT_STATUS_OK;
5402         }
5403
5404         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5405
5406         if (rc != LDAP_SUCCESS) {
5407                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5408                          pdb_get_username(sampass), gidstr));
5409                 return NT_STATUS_UNSUCCESSFUL;
5410         }
5411
5412         flush_pwnam_cache();
5413
5414         return NT_STATUS_OK;
5415 }
5416
5417 /**********************************************************************
5418  Housekeeping
5419  *********************************************************************/
5420
5421 static void free_private_data(void **vp)
5422 {
5423         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
5424
5425         smbldap_free_struct(&(*ldap_state)->smbldap_state);
5426
5427         if ((*ldap_state)->result != NULL) {
5428                 ldap_msgfree((*ldap_state)->result);
5429                 (*ldap_state)->result = NULL;
5430         }
5431         if ((*ldap_state)->domain_dn != NULL) {
5432                 SAFE_FREE((*ldap_state)->domain_dn);
5433         }
5434
5435         *ldap_state = NULL;
5436
5437         /* No need to free any further, as it is talloc()ed */
5438 }
5439
5440 /*********************************************************************
5441  Intitalise the parts of the pdb_methods structure that are common to
5442  all pdb_ldap modes
5443 *********************************************************************/
5444
5445 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
5446 {
5447         NTSTATUS nt_status;
5448         struct ldapsam_privates *ldap_state;
5449
5450         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
5451                 return nt_status;
5452         }
5453
5454         (*pdb_method)->name = "ldapsam";
5455
5456         (*pdb_method)->setsampwent = ldapsam_setsampwent;
5457         (*pdb_method)->endsampwent = ldapsam_endsampwent;
5458         (*pdb_method)->getsampwent = ldapsam_getsampwent;
5459         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
5460         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
5461         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
5462         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
5463         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
5464         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
5465
5466         (*pdb_method)->getgrsid = ldapsam_getgrsid;
5467         (*pdb_method)->getgrgid = ldapsam_getgrgid;
5468         (*pdb_method)->getgrnam = ldapsam_getgrnam;
5469         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
5470         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
5471         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
5472         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
5473
5474         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
5475         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
5476
5477         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
5478
5479         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
5480         (*pdb_method)->new_rid = ldapsam_new_rid;
5481
5482         /* TODO: Setup private data and free */
5483
5484         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
5485                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
5486                 return NT_STATUS_NO_MEMORY;
5487         }
5488
5489         nt_status = smbldap_init(*pdb_method, location, &ldap_state->smbldap_state);
5490
5491         if ( !NT_STATUS_IS_OK(nt_status) ) {
5492                 return nt_status;
5493         }
5494
5495         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
5496                 return NT_STATUS_NO_MEMORY;
5497         }
5498
5499         (*pdb_method)->private_data = ldap_state;
5500
5501         (*pdb_method)->free_private_data = free_private_data;
5502
5503         return NT_STATUS_OK;
5504 }
5505
5506 /**********************************************************************
5507  Initialise the 'compat' mode for pdb_ldap
5508  *********************************************************************/
5509
5510 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
5511 {
5512         NTSTATUS nt_status;
5513         struct ldapsam_privates *ldap_state;
5514         char *uri = talloc_strdup( NULL, location );
5515
5516         trim_char( uri, '\"', '\"' );
5517         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
5518         if ( uri )
5519                 TALLOC_FREE( uri );
5520
5521         if ( !NT_STATUS_IS_OK(nt_status) ) {
5522                 return nt_status;
5523         }
5524
5525         (*pdb_method)->name = "ldapsam_compat";
5526
5527         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
5528         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
5529
5530         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5531
5532         return NT_STATUS_OK;
5533 }
5534
5535 /**********************************************************************
5536  Initialise the normal mode for pdb_ldap
5537  *********************************************************************/
5538
5539 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
5540 {
5541         NTSTATUS nt_status;
5542         struct ldapsam_privates *ldap_state;
5543         uint32 alg_rid_base;
5544         pstring alg_rid_base_string;
5545         LDAPMessage *result = NULL;
5546         LDAPMessage *entry = NULL;
5547         DOM_SID ldap_domain_sid;
5548         DOM_SID secrets_domain_sid;
5549         pstring domain_sid_string;
5550         char *dn;
5551         char *uri = talloc_strdup( NULL, location );
5552
5553         trim_char( uri, '\"', '\"' );
5554         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
5555         if ( uri )
5556                 TALLOC_FREE( uri );
5557
5558         if (!NT_STATUS_IS_OK(nt_status)) {
5559                 return nt_status;
5560         }
5561
5562         (*pdb_method)->name = "ldapsam";
5563
5564         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
5565         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
5566         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
5567         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
5568         (*pdb_method)->search_users = ldapsam_search_users;
5569         (*pdb_method)->search_groups = ldapsam_search_groups;
5570         (*pdb_method)->search_aliases = ldapsam_search_aliases;
5571
5572         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
5573                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
5574                 (*pdb_method)->enum_group_memberships =
5575                         ldapsam_enum_group_memberships;
5576                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
5577                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
5578
5579                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
5580                         (*pdb_method)->create_user = ldapsam_create_user;
5581                         (*pdb_method)->delete_user = ldapsam_delete_user;
5582                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
5583                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
5584                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
5585                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
5586                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
5587                 }
5588         }
5589
5590         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
5591         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
5592
5593         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
5594
5595         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
5596                                                &result,
5597                                                ldap_state->domain_name, True);
5598
5599         if ( !NT_STATUS_IS_OK(nt_status) ) {
5600                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
5601                           "info, nor add one to the domain\n"));
5602                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
5603                              "will be unable to allocate new users/groups, "
5604                              "and will risk BDCs having inconsistant SIDs\n"));
5605                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5606                 return NT_STATUS_OK;
5607         }
5608
5609         /* Given that the above might fail, everything below this must be
5610          * optional */
5611
5612         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
5613                                  result);
5614         if (!entry) {
5615                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
5616                           "entry\n"));
5617                 ldap_msgfree(result);
5618                 return NT_STATUS_UNSUCCESSFUL;
5619         }
5620
5621         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
5622         if (!dn) {
5623                 return NT_STATUS_UNSUCCESSFUL;
5624         }
5625
5626         ldap_state->domain_dn = smb_xstrdup(dn);
5627         ldap_memfree(dn);
5628
5629         if (smbldap_get_single_pstring(
5630                     ldap_state->smbldap_state->ldap_struct,
5631                     entry,
5632                     get_userattr_key2string(ldap_state->schema_ver,
5633                                             LDAP_ATTR_USER_SID),
5634                     domain_sid_string)) {
5635                 BOOL found_sid;
5636                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
5637                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
5638                                   "read as a valid SID\n", domain_sid_string));
5639                         return NT_STATUS_INVALID_PARAMETER;
5640                 }
5641                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
5642                                                      &secrets_domain_sid);
5643                 if (!found_sid || !sid_equal(&secrets_domain_sid,
5644                                              &ldap_domain_sid)) {
5645                         fstring new_sid_str, old_sid_str;
5646                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
5647                                   "%s based on pdb_ldap results %s -> %s\n",
5648                                   ldap_state->domain_name,
5649                                   sid_to_string(old_sid_str,
5650                                                 &secrets_domain_sid),
5651                                   sid_to_string(new_sid_str,
5652                                                 &ldap_domain_sid)));
5653
5654                         /* reset secrets.tdb sid */
5655                         secrets_store_domain_sid(ldap_state->domain_name,
5656                                                  &ldap_domain_sid);
5657                         DEBUG(1, ("New global sam SID: %s\n",
5658                                   sid_to_string(new_sid_str,
5659                                                 get_global_sam_sid())));
5660                 }
5661                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
5662         }
5663
5664         if (smbldap_get_single_pstring(
5665                     ldap_state->smbldap_state->ldap_struct,
5666                     entry,
5667                     get_attr_key2string( dominfo_attr_list,
5668                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
5669                     alg_rid_base_string)) {
5670                 alg_rid_base = (uint32)atol(alg_rid_base_string);
5671                 if (alg_rid_base != algorithmic_rid_base()) {
5672                         DEBUG(0, ("The value of 'algorithmic RID base' has "
5673                                   "changed since the LDAP\n"
5674                                   "database was initialised.  Aborting. \n"));
5675                         ldap_msgfree(result);
5676                         return NT_STATUS_UNSUCCESSFUL;
5677                 }
5678         }
5679         ldap_msgfree(result);
5680
5681         return NT_STATUS_OK;
5682 }
5683
5684 NTSTATUS pdb_ldap_init(void)
5685 {
5686         NTSTATUS nt_status;
5687         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
5688                 return nt_status;
5689
5690         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
5691                 return nt_status;
5692
5693         /* Let pdb_nds register backends */
5694         pdb_nds_init();
5695
5696         return NT_STATUS_OK;
5697 }