source3/passdb/pdb_ldap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP protocol helper functions for SAMBA
   4    Copyright (C) Jean François Micouleau       1998
   5    Copyright (C) Gerald Carter                  2001-2003
   6    Copyright (C) Shahms King                    2001
   7    Copyright (C) Andrew Bartlett                2002-2003
   8    Copyright (C) Stefan (metze) Metzmacher      2002-2003
   9    Copyright (C) Simo Sorce                     2006
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24
  25 */
  26
  27 /* TODO:
  28 *  persistent connections: if using NSS LDAP, many connections are made
  29 *      however, using only one within Samba would be nice
  30 *
  31 *  Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
  32 *
  33 *  Other LDAP based login attributes: accountExpires, etc.
  34 *  (should be the domain of Samba proper, but the sam_password/struct samu
  35 *  structures don't have fields for some of these attributes)
  36 *
  37 *  SSL is done, but can't get the certificate based authentication to work
  38 *  against on my test platform (Linux 2.4, OpenLDAP 2.x)
  39 */
  40
  41 /* NOTE: this will NOT work against an Active Directory server
  42 *  due to the fact that the two password fields cannot be retrieved
  43 *  from a server; recommend using security = domain in this situation
  44 *  and/or winbind
  45 */
  46
  47 #include "includes.h"
  48
  49 #undef DBGC_CLASS
  50 #define DBGC_CLASS DBGC_PASSDB
  51
  52 #include <lber.h>
  53 #include <ldap.h>
  54
  55 /*
  56  * Work around versions of the LDAP client libs that don't have the OIDs
  57  * defined, or have them defined under the old name.
  58  * This functionality is really a factor of the server, not the client
  59  *
  60  */
  61
  62 #if defined(LDAP_EXOP_X_MODIFY_PASSWD) && !defined(LDAP_EXOP_MODIFY_PASSWD)
  63 #define LDAP_EXOP_MODIFY_PASSWD LDAP_EXOP_X_MODIFY_PASSWD
  64 #elif !defined(LDAP_EXOP_MODIFY_PASSWD)
  65 #define LDAP_EXOP_MODIFY_PASSWD "1.3.6.1.4.1.4203.1.11.1"
  66 #endif
  67
  68 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_ID) && !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  69 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID LDAP_EXOP_X_MODIFY_PASSWD_ID
  70 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
  71 #define LDAP_TAG_EXOP_MODIFY_PASSWD_ID        ((ber_tag_t) 0x80U)
  72 #endif
  73
  74 #if defined(LDAP_EXOP_X_MODIFY_PASSWD_NEW) && !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  75 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW LDAP_EXOP_X_MODIFY_PASSWD_NEW
  76 #elif !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
  77 #define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW       ((ber_tag_t) 0x82U)
  78 #endif
  79
  80
  81 #include "smbldap.h"
  82
  83 /**********************************************************************
  84  Simple helper function to make stuff better readable
  85  **********************************************************************/
  86
  87 static LDAP *priv2ld(struct ldapsam_privates *priv)
  88 {
  89         return priv->smbldap_state->ldap_struct;
  90 }
  91
  92 /**********************************************************************
  93  Get the attribute name given a user schame version.
  94  **********************************************************************/
  95
  96 static const char* get_userattr_key2string( int schema_ver, int key )
  97 {
  98         switch ( schema_ver ) {
  99                 case SCHEMAVER_SAMBAACCOUNT:
 100                         return get_attr_key2string( attrib_map_v22, key );
 101
 102                 case SCHEMAVER_SAMBASAMACCOUNT:
 103                         return get_attr_key2string( attrib_map_v30, key );
 104
 105                 default:
 106                         DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
 107                         break;
 108         }
 109         return NULL;
 110 }
 111
 112 /**********************************************************************
 113  Return the list of attribute names given a user schema version.
 114 **********************************************************************/
 115
 116 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
 117 {
 118         switch ( schema_ver ) {
 119                 case SCHEMAVER_SAMBAACCOUNT:
 120                         return get_attr_list( mem_ctx, attrib_map_v22 );
 121
 122                 case SCHEMAVER_SAMBASAMACCOUNT:
 123                         return get_attr_list( mem_ctx, attrib_map_v30 );
 124                 default:
 125                         DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
 126                         break;
 127         }
 128
 129         return NULL;
 130 }
 131
 132 /**************************************************************************
 133  Return the list of attribute names to delete given a user schema version.
 134 **************************************************************************/
 135
 136 static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
 137                                               int schema_ver )
 138 {
 139         switch ( schema_ver ) {
 140                 case SCHEMAVER_SAMBAACCOUNT:
 141                         return get_attr_list( mem_ctx,
 142                                               attrib_map_to_delete_v22 );
 143
 144                 case SCHEMAVER_SAMBASAMACCOUNT:
 145                         return get_attr_list( mem_ctx,
 146                                               attrib_map_to_delete_v30 );
 147                 default:
 148                         DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
 149                         break;
 150         }
 151
 152         return NULL;
 153 }
 154
 155
 156 /*******************************************************************
 157  Generate the LDAP search filter for the objectclass based on the
 158  version of the schema we are using.
 159 ******************************************************************/
 160
 161 static const char* get_objclass_filter( int schema_ver )
 162 {
 163         static fstring objclass_filter;
 164
 165         switch( schema_ver ) {
 166                 case SCHEMAVER_SAMBAACCOUNT:
 167                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 168                         break;
 169                 case SCHEMAVER_SAMBASAMACCOUNT:
 170                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 171                         break;
 172                 default:
 173                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 174                         break;
 175         }
 176
 177         return objclass_filter;
 178 }
 179
 180 /*****************************************************************
 181  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 182 ******************************************************************/
 183
 184 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 185 {
 186         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 187         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 188         LDAPMessage *msg = NULL;
 189         LDAPMessage *entry = NULL;
 190         TALLOC_CTX *mem_ctx;
 191         char **values = NULL;
 192         int rc, num_result, num_values, rid;
 193         pstring suffix;
 194         fstring tok;
 195         const char *p;
 196         const char **attrs;
 197
 198         /* Unfortunatly there is no proper way to detect syncrepl-support in
 199          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 200          * but do not show up in the root-DSE yet. Neither we can query the
 201          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 202          * objectclass. Currently we require lp_ldap_suffix() to show up as
 203          * namingContext.  -  Guenther
 204          */
 205
 206         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 207                 return ntstatus;
 208         }
 209
 210         if (!seq_num) {
 211                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 212                 return ntstatus;
 213         }
 214
 215         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 216                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 217                          "as top-level namingContext\n", lp_ldap_suffix()));
 218                 return ntstatus;
 219         }
 220
 221         mem_ctx = talloc_init("ldapsam_get_seq_num");
 222
 223         if (mem_ctx == NULL)
 224                 return NT_STATUS_NO_MEMORY;
 225
 226         if ((attrs = TALLOC_ARRAY(mem_ctx, const char *, 2)) == NULL) {
 227                 ntstatus = NT_STATUS_NO_MEMORY;
 228                 goto done;
 229         }
 230
 231         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 232         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 233         if (rid > 0) {
 234
 235                 /* consumer syncreplCookie: */
 236                 /* csn=20050126161620Z#0000001#00#00000 */
 237                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 238                 attrs[1] = NULL;
 239                 pstr_sprintf( suffix, "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 240
 241         } else {
 242
 243                 /* provider contextCSN */
 244                 /* 20050126161620Z#000009#00#000000 */
 245                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 246                 attrs[1] = NULL;
 247                 pstr_sprintf( suffix, "cn=ldapsync,%s", lp_ldap_suffix());
 248
 249         }
 250
 251         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 252                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 253
 254         if (rc != LDAP_SUCCESS) {
 255                 goto done;
 256         }
 257
 258         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 259         if (num_result != 1) {
 260                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 261                 goto done;
 262         }
 263
 264         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 265         if (entry == NULL) {
 266                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 267                 goto done;
 268         }
 269
 270         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 271         if (values == NULL) {
 272                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 273                 goto done;
 274         }
 275
 276         num_values = ldap_count_values(values);
 277         if (num_values == 0) {
 278                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 279                 goto done;
 280         }
 281
 282         p = values[0];
 283         if (!next_token(&p, tok, "#", sizeof(tok))) {
 284                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 285                 goto done;
 286         }
 287
 288         p = tok;
 289         if (!strncmp(p, "csn=", strlen("csn=")))
 290                 p += strlen("csn=");
 291
 292         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 293
 294         *seq_num = generalized_to_unix_time(p);
 295
 296         /* very basic sanity check */
 297         if (*seq_num <= 0) {
 298                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 299                         (int)*seq_num));
 300                 goto done;
 301         }
 302
 303         ntstatus = NT_STATUS_OK;
 304
 305  done:
 306         if (values != NULL)
 307                 ldap_value_free(values);
 308         if (msg != NULL)
 309                 ldap_msgfree(msg);
 310         if (mem_ctx)
 311                 talloc_destroy(mem_ctx);
 312
 313         return ntstatus;
 314 }
 315
 316 /*******************************************************************
 317  Run the search by name.
 318 ******************************************************************/
 319
 320 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 321                                           const char *user,
 322                                           LDAPMessage ** result,
 323                                           const char **attr)
 324 {
 325         pstring filter;
 326         char *escape_user = escape_ldap_string_alloc(user);
 327
 328         if (!escape_user) {
 329                 return LDAP_NO_MEMORY;
 330         }
 331
 332         /*
 333          * in the filter expression, replace %u with the real name
 334          * so in ldap filter, %u MUST exist :-)
 335          */
 336         pstr_sprintf(filter, "(&%s%s)", "(uid=%u)",
 337                 get_objclass_filter(ldap_state->schema_ver));
 338
 339         /*
 340          * have to use this here because $ is filtered out
 341            * in pstring_sub
 342          */
 343
 344
 345         all_string_sub(filter, "%u", escape_user, sizeof(pstring));
 346         SAFE_FREE(escape_user);
 347
 348         return smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
 349 }
 350
 351 /*******************************************************************
 352  Run the search by rid.
 353 ******************************************************************/
 354
 355 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 356                                          uint32 rid, LDAPMessage ** result,
 357                                          const char **attr)
 358 {
 359         pstring filter;
 360         int rc;
 361
 362         pstr_sprintf(filter, "(&(rid=%i)%s)", rid,
 363                 get_objclass_filter(ldap_state->schema_ver));
 364
 365         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
 366
 367         return rc;
 368 }
 369
 370 /*******************************************************************
 371  Run the search by SID.
 372 ******************************************************************/
 373
 374 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 375                                          const DOM_SID *sid, LDAPMessage ** result,
 376                                          const char **attr)
 377 {
 378         pstring filter;
 379         int rc;
 380         fstring sid_string;
 381
 382         pstr_sprintf(filter, "(&(%s=%s)%s)",
 383                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
 384                 sid_to_string(sid_string, sid),
 385                 get_objclass_filter(ldap_state->schema_ver));
 386
 387         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
 388
 389         return rc;
 390 }
 391
 392 /*******************************************************************
 393  Delete complete object or objectclass and attrs from
 394  object found in search_result depending on lp_ldap_delete_dn
 395 ******************************************************************/
 396
 397 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 398                                 TALLOC_CTX *mem_ctx,
 399                                 LDAPMessage *entry,
 400                                 const char *objectclass,
 401                                 const char **attrs)
 402 {
 403         LDAPMod **mods = NULL;
 404         char *name;
 405         const char *dn;
 406         BerElement *ptr = NULL;
 407
 408         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 409         if (dn == NULL) {
 410                 return LDAP_NO_MEMORY;
 411         }
 412
 413         if (lp_ldap_delete_dn()) {
 414                 return smbldap_delete(priv->smbldap_state, dn);
 415         }
 416
 417         /* Ok, delete only the SAM attributes */
 418
 419         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 420              name != NULL;
 421              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 422                 const char **attrib;
 423
 424                 /* We are only allowed to delete the attributes that
 425                    really exist. */
 426
 427                 for (attrib = attrs; *attrib != NULL; attrib++) {
 428                         if (strequal(*attrib, name)) {
 429                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 430                                            "attribute %s\n", name));
 431                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 432                                                 NULL);
 433                         }
 434                 }
 435                 ldap_memfree(name);
 436         }
 437
 438         if (ptr != NULL) {
 439                 ber_free(ptr, 0);
 440         }
 441
 442         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 443         talloc_autofree_ldapmod(mem_ctx, mods);
 444
 445         return smbldap_modify(priv->smbldap_state, dn, mods);
 446 }
 447
 448 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 449 {
 450         pstring temp;
 451         struct tm tm;
 452
 453         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 454                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 455                         temp))
 456                 return (time_t) 0;
 457
 458         if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
 459                 DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
 460                         (char*)temp));
 461                 return (time_t) 0;
 462         }
 463         tzset();
 464         return timegm(&tm);
 465 }
 466
 467 /**********************************************************************
 468  Initialize struct samu from an LDAP query.
 469  (Based on init_sam_from_buffer in pdb_tdb.c)
 470 *********************************************************************/
 471
 472 static BOOL init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 473                                 struct samu * sampass,
 474                                 LDAPMessage * entry)
 475 {
 476         time_t  logon_time,
 477                         logoff_time,
 478                         kickoff_time,
 479                         pass_last_set_time,
 480                         pass_can_change_time,
 481                         pass_must_change_time,
 482                         ldap_entry_time,
 483                         bad_password_time;
 484         pstring         username,
 485                         domain,
 486                         nt_username,
 487                         fullname,
 488                         homedir,
 489                         dir_drive,
 490                         logon_script,
 491                         profile_path,
 492                         acct_desc,
 493                         workstations;
 494         char            munged_dial[2048];
 495         uint32          user_rid;
 496         uint8           smblmpwd[LM_HASH_LEN],
 497                         smbntpwd[NT_HASH_LEN];
 498         BOOL            use_samba_attrs = True;
 499         uint32          acct_ctrl = 0;
 500         uint16          logon_divs;
 501         uint16          bad_password_count = 0,
 502                         logon_count = 0;
 503         uint32 hours_len;
 504         uint8           hours[MAX_HOURS_LEN];
 505         pstring temp;
 506         LOGIN_CACHE     *cache_entry = NULL;
 507         uint32          pwHistLen;
 508         pstring         tmpstring;
 509         BOOL expand_explicit = lp_passdb_expand_explicit();
 510
 511         /*
 512          * do a little initialization
 513          */
 514         username[0]     = '\0';
 515         domain[0]       = '\0';
 516         nt_username[0]  = '\0';
 517         fullname[0]     = '\0';
 518         homedir[0]      = '\0';
 519         dir_drive[0]    = '\0';
 520         logon_script[0] = '\0';
 521         profile_path[0] = '\0';
 522         acct_desc[0]    = '\0';
 523         munged_dial[0]  = '\0';
 524         workstations[0] = '\0';
 525
 526
 527         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 528                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 529                 return False;
 530         }
 531
 532         if (priv2ld(ldap_state) == NULL) {
 533                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 534                           "ldap_struct is NULL!\n"));
 535                 return False;
 536         }
 537
 538         if (!smbldap_get_single_pstring(priv2ld(ldap_state), entry, "uid",
 539                                         username)) {
 540                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 541                           "this user!\n"));
 542                 return False;
 543         }
 544
 545         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 546
 547         pstrcpy(nt_username, username);
 548
 549         pstrcpy(domain, ldap_state->domain_name);
 550
 551         pdb_set_username(sampass, username, PDB_SET);
 552
 553         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 554         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 555
 556         /* deal with different attributes between the schema first */
 557
 558         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 559                 if (smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 560                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID), temp)) {
 561                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 562                 }
 563         } else {
 564                 if (smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 565                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID), temp)) {
 566                         user_rid = (uint32)atol(temp);
 567                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 568                 }
 569         }
 570
 571         if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
 572                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 573                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
 574                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
 575                         username));
 576                 return False;
 577         }
 578
 579         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 580                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET), temp)) {
 581                 /* leave as default */
 582         } else {
 583                 pass_last_set_time = (time_t) atol(temp);
 584                 pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
 585         }
 586
 587         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 588                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp)) {
 589                 /* leave as default */
 590         } else {
 591                 logon_time = (time_t) atol(temp);
 592                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 593         }
 594
 595         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 596                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp)) {
 597                 /* leave as default */
 598         } else {
 599                 logoff_time = (time_t) atol(temp);
 600                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 601         }
 602
 603         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 604                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp)) {
 605                 /* leave as default */
 606         } else {
 607                 kickoff_time = (time_t) atol(temp);
 608                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 609         }
 610
 611         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 612                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp)) {
 613                 /* leave as default */
 614         } else {
 615                 pass_can_change_time = (time_t) atol(temp);
 616                 pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
 617         }
 618
 619         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 620                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp)) {
 621                 /* leave as default */
 622         } else {
 623                 pass_must_change_time = (time_t) atol(temp);
 624                 pdb_set_pass_must_change_time(sampass, pass_must_change_time, PDB_SET);
 625         }
 626
 627         /* recommend that 'gecos' and 'displayName' should refer to the same
 628          * attribute OID.  userFullName depreciated, only used by Samba
 629          * primary rules of LDAP: don't make a new attribute when one is already defined
 630          * that fits your needs; using cn then displayName rather than 'userFullName'
 631          */
 632
 633         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 634                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME), fullname)) {
 635                 if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 636                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_CN), fullname)) {
 637                         /* leave as default */
 638                 } else {
 639                         pdb_set_fullname(sampass, fullname, PDB_SET);
 640                 }
 641         } else {
 642                 pdb_set_fullname(sampass, fullname, PDB_SET);
 643         }
 644
 645         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 646                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE), dir_drive))
 647         {
 648                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 649         } else {
 650                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 651         }
 652
 653         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 654                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH), homedir))
 655         {
 656                 pdb_set_homedir( sampass,
 657                         talloc_sub_basic(sampass, username, domain,
 658                                          lp_logon_home()),
 659                         PDB_DEFAULT );
 660         } else {
 661                 pstrcpy( tmpstring, homedir );
 662                 if (expand_explicit) {
 663                         standard_sub_basic( username, domain, tmpstring,
 664                                             sizeof(tmpstring) );
 665                 }
 666                 pdb_set_homedir(sampass, tmpstring, PDB_SET);
 667         }
 668
 669         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 670                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT), logon_script))
 671         {
 672                 pdb_set_logon_script( sampass,
 673                         talloc_sub_basic(sampass, username, domain,
 674                                          lp_logon_script()),
 675                         PDB_DEFAULT );
 676         } else {
 677                 pstrcpy( tmpstring, logon_script );
 678                 if (expand_explicit) {
 679                         standard_sub_basic( username, domain, tmpstring,
 680                                             sizeof(tmpstring) );
 681                 }
 682                 pdb_set_logon_script(sampass, tmpstring, PDB_SET);
 683         }
 684
 685         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 686                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH), profile_path))
 687         {
 688                 pdb_set_profile_path( sampass,
 689                         talloc_sub_basic( sampass, username, domain,
 690                                           lp_logon_path()),
 691                         PDB_DEFAULT );
 692         } else {
 693                 pstrcpy( tmpstring, profile_path );
 694                 if (expand_explicit) {
 695                         standard_sub_basic( username, domain, tmpstring,
 696                                             sizeof(tmpstring) );
 697                 }
 698                 pdb_set_profile_path(sampass, tmpstring, PDB_SET);
 699         }
 700
 701         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 702                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC), acct_desc))
 703         {
 704                 /* leave as default */
 705         } else {
 706                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 707         }
 708
 709         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 710                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS), workstations)) {
 711                 /* leave as default */;
 712         } else {
 713                 pdb_set_workstations(sampass, workstations, PDB_SET);
 714         }
 715
 716         if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 717                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL), munged_dial, sizeof(munged_dial))) {
 718                 /* leave as default */;
 719         } else {
 720                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 721         }
 722
 723         /* FIXME: hours stuff should be cleaner */
 724
 725         logon_divs = 168;
 726         hours_len = 21;
 727         memset(hours, 0xff, hours_len);
 728
 729         if (ldap_state->is_nds_ldap) {
 730                 char *user_dn;
 731                 size_t pwd_len;
 732                 char clear_text_pw[512];
 733
 734                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 735                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 736                 user_dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
 737                 if (user_dn != NULL) {
 738                         DEBUG(3, ("init_sam_from_ldap: smbldap_get_dn(%s) returned '%s'\n", username, user_dn));
 739
 740                         pwd_len = sizeof(clear_text_pw);
 741                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 742                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 743                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 744                                         SAFE_FREE(user_dn);
 745                                         return False;
 746                                 }
 747                                 ZERO_STRUCT(smblmpwd);
 748                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 749                                         SAFE_FREE(user_dn);
 750                                         return False;
 751                                 }
 752                                 ZERO_STRUCT(smbntpwd);
 753                                 use_samba_attrs = False;
 754                         }
 755
 756                         SAFE_FREE(user_dn);
 757
 758                 } else {
 759                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 760                 }
 761         }
 762
 763         if (use_samba_attrs) {
 764                 if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 765                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW), temp)) {
 766                         /* leave as default */
 767                 } else {
 768                         pdb_gethexpwd(temp, smblmpwd);
 769                         memset((char *)temp, '\0', strlen(temp)+1);
 770                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET))
 771                                 return False;
 772                         ZERO_STRUCT(smblmpwd);
 773                 }
 774
 775                 if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 776                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW), temp)) {
 777                         /* leave as default */
 778                 } else {
 779                         pdb_gethexpwd(temp, smbntpwd);
 780                         memset((char *)temp, '\0', strlen(temp)+1);
 781                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET))
 782                                 return False;
 783                         ZERO_STRUCT(smbntpwd);
 784                 }
 785         }
 786
 787         pwHistLen = 0;
 788
 789         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
 790         if (pwHistLen > 0){
 791                 uint8 *pwhist = NULL;
 792                 int i;
 793                 char history_string[MAX_PW_HISTORY_LEN*64];
 794
 795                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 796
 797                 if ((pwhist = SMB_MALLOC_ARRAY(uint8, pwHistLen * PW_HISTORY_ENTRY_LEN)) == NULL){
 798                         DEBUG(0, ("init_sam_from_ldap: malloc failed!\n"));
 799                         return False;
 800                 }
 801                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 802
 803                 if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 804                                                   get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
 805                                                   history_string, sizeof(history_string))) {
 806                         /* leave as default - zeros */
 807                 } else {
 808                         BOOL hex_failed = False;
 809                         for (i = 0; i < pwHistLen; i++){
 810                                 /* Get the 16 byte salt. */
 811                                 if (!pdb_gethexpwd(&history_string[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 812                                         hex_failed = True;
 813                                         break;
 814                                 }
 815                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 816                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 817                                                 &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN])) {
 818                                         hex_failed = True;
 819                                         break;
 820                                 }
 821                         }
 822                         if (hex_failed) {
 823                                 DEBUG(0,("init_sam_from_ldap: Failed to get password history for user %s\n",
 824                                         username));
 825                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 826                         }
 827                 }
 828                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 829                         SAFE_FREE(pwhist);
 830                         return False;
 831                 }
 832                 SAFE_FREE(pwhist);
 833         }
 834
 835         if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
 836                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO), temp)) {
 837                 acct_ctrl |= ACB_NORMAL;
 838         } else {
 839                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 840
 841                 if (acct_ctrl == 0)
 842                         acct_ctrl |= ACB_NORMAL;
 843
 844                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 845         }
 846
 847         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 848         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 849
 850         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 851                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_COUNT), temp)) {
 852                         /* leave as default */
 853         } else {
 854                 bad_password_count = (uint32) atol(temp);
 855                 pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
 856         }
 857
 858         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 859                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_TIME), temp)) {
 860                 /* leave as default */
 861         } else {
 862                 bad_password_time = (time_t) atol(temp);
 863                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
 864         }
 865
 866
 867         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 868                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_COUNT), temp)) {
 869                         /* leave as default */
 870         } else {
 871                 logon_count = (uint32) atol(temp);
 872                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
 873         }
 874
 875         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
 876
 877         if(!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
 878                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_HOURS), temp)) {
 879                         /* leave as default */
 880         } else {
 881                 pdb_gethexhours(temp, hours);
 882                 memset((char *)temp, '\0', strlen(temp) +1);
 883                 pdb_set_hours(sampass, hours, PDB_SET);
 884                 ZERO_STRUCT(hours);
 885         }
 886
 887         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
 888                 if (smbldap_get_single_pstring(priv2ld(ldap_state), entry,
 889                                                "uidNumber", temp)) {
 890                         /* We've got a uid, feed the cache */
 891                         uid_t uid = strtoul(temp, NULL, 10);
 892                         store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
 893                 }
 894         }
 895
 896         /* check the timestamp of the cache vs ldap entry */
 897         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
 898                                                             entry)))
 899                 return True;
 900
 901         /* see if we have newer updates */
 902         if (!(cache_entry = login_cache_read(sampass))) {
 903                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
 904                            (unsigned int)pdb_get_bad_password_count(sampass),
 905                            (unsigned int)pdb_get_bad_password_time(sampass)));
 906                 return True;
 907         }
 908
 909         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
 910                   (unsigned int)ldap_entry_time, (unsigned int)cache_entry->entry_timestamp,
 911                   (unsigned int)cache_entry->bad_password_time));
 912
 913         if (ldap_entry_time > cache_entry->entry_timestamp) {
 914                 /* cache is older than directory , so
 915                    we need to delete the entry but allow the
 916                    fields to be written out */
 917                 login_cache_delentry(sampass);
 918         } else {
 919                 /* read cache in */
 920                 pdb_set_acct_ctrl(sampass,
 921                                   pdb_get_acct_ctrl(sampass) |
 922                                   (cache_entry->acct_ctrl & ACB_AUTOLOCK),
 923                                   PDB_SET);
 924                 pdb_set_bad_password_count(sampass,
 925                                            cache_entry->bad_password_count,
 926                                            PDB_SET);
 927                 pdb_set_bad_password_time(sampass,
 928                                           cache_entry->bad_password_time,
 929                                           PDB_SET);
 930         }
 931
 932         SAFE_FREE(cache_entry);
 933         return True;
 934 }
 935
 936 /**********************************************************************
 937  Initialize the ldap db from a struct samu. Called on update.
 938  (Based on init_buffer_from_sam in pdb_tdb.c)
 939 *********************************************************************/
 940
 941 static BOOL init_ldap_from_sam (struct ldapsam_privates *ldap_state,
 942                                 LDAPMessage *existing,
 943                                 LDAPMod *** mods, struct samu * sampass,
 944                                 BOOL (*need_update)(const struct samu *,
 945                                                     enum pdb_elements))
 946 {
 947         pstring temp;
 948         uint32 rid;
 949
 950         if (mods == NULL || sampass == NULL) {
 951                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
 952                 return False;
 953         }
 954
 955         *mods = NULL;
 956
 957         /*
 958          * took out adding "objectclass: sambaAccount"
 959          * do this on a per-mod basis
 960          */
 961         if (need_update(sampass, PDB_USERNAME)) {
 962                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 963                               "uid", pdb_get_username(sampass));
 964                 if (ldap_state->is_nds_ldap) {
 965                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 966                                       "cn", pdb_get_username(sampass));
 967                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 968                                       "sn", pdb_get_username(sampass));
 969                 }
 970         }
 971
 972         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
 973
 974         /* only update the RID if we actually need to */
 975         if (need_update(sampass, PDB_USERSID)) {
 976                 fstring sid_string;
 977                 const DOM_SID *user_sid = pdb_get_user_sid(sampass);
 978
 979                 switch ( ldap_state->schema_ver ) {
 980                         case SCHEMAVER_SAMBAACCOUNT:
 981                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
 982                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
 983                                                   sid_string_static(user_sid),
 984                                                   sid_string_static(&ldap_state->domain_sid)));
 985                                         return False;
 986                                 }
 987                                 slprintf(temp, sizeof(temp) - 1, "%i", rid);
 988                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 989                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
 990                                         temp);
 991                                 break;
 992
 993                         case SCHEMAVER_SAMBASAMACCOUNT:
 994                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
 995                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
 996                                         sid_to_string(sid_string, user_sid));
 997                                 break;
 998
 999                         default:
1000                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1001                                 break;
1002                 }
1003         }
1004
1005         /* we don't need to store the primary group RID - so leaving it
1006            'free' to hang off the unix primary group makes life easier */
1007
1008         if (need_update(sampass, PDB_GROUPSID)) {
1009                 fstring sid_string;
1010                 const DOM_SID *group_sid = pdb_get_group_sid(sampass);
1011
1012                 switch ( ldap_state->schema_ver ) {
1013                         case SCHEMAVER_SAMBAACCOUNT:
1014                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1015                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1016                                                   sid_string_static(group_sid),
1017                                                   sid_string_static(&ldap_state->domain_sid)));
1018                                         return False;
1019                                 }
1020
1021                                 slprintf(temp, sizeof(temp) - 1, "%i", rid);
1022                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1023                                         get_userattr_key2string(ldap_state->schema_ver,
1024                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1025                                 break;
1026
1027                         case SCHEMAVER_SAMBASAMACCOUNT:
1028                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1029                                         get_userattr_key2string(ldap_state->schema_ver,
1030                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_string(sid_string, group_sid));
1031                                 break;
1032
1033                         default:
1034                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1035                                 break;
1036                 }
1037
1038         }
1039
1040         /* displayName, cn, and gecos should all be the same
1041          *  most easily accomplished by giving them the same OID
1042          *  gecos isn't set here b/c it should be handled by the
1043          *  add-user script
1044          *  We change displayName only and fall back to cn if
1045          *  it does not exist.
1046          */
1047
1048         if (need_update(sampass, PDB_FULLNAME))
1049                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1050                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1051                         pdb_get_fullname(sampass));
1052
1053         if (need_update(sampass, PDB_ACCTDESC))
1054                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1055                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1056                         pdb_get_acct_desc(sampass));
1057
1058         if (need_update(sampass, PDB_WORKSTATIONS))
1059                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1060                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1061                         pdb_get_workstations(sampass));
1062
1063         if (need_update(sampass, PDB_MUNGEDDIAL))
1064                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1065                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1066                         pdb_get_munged_dial(sampass));
1067
1068         if (need_update(sampass, PDB_SMBHOME))
1069                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1070                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1071                         pdb_get_homedir(sampass));
1072
1073         if (need_update(sampass, PDB_DRIVE))
1074                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1075                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1076                         pdb_get_dir_drive(sampass));
1077
1078         if (need_update(sampass, PDB_LOGONSCRIPT))
1079                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1080                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1081                         pdb_get_logon_script(sampass));
1082
1083         if (need_update(sampass, PDB_PROFILE))
1084                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1085                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1086                         pdb_get_profile_path(sampass));
1087
1088         slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logon_time(sampass));
1089         if (need_update(sampass, PDB_LOGONTIME))
1090                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1091                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1092
1093         slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logoff_time(sampass));
1094         if (need_update(sampass, PDB_LOGOFFTIME))
1095                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1096                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1097
1098         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_kickoff_time(sampass));
1099         if (need_update(sampass, PDB_KICKOFFTIME))
1100                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1101                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1102
1103         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_can_change_time_noncalc(sampass));
1104         if (need_update(sampass, PDB_CANCHANGETIME))
1105                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1106                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1107
1108         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_must_change_time(sampass));
1109         if (need_update(sampass, PDB_MUSTCHANGETIME))
1110                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1111                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1112
1113
1114         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1115                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1116
1117                 if (need_update(sampass, PDB_LMPASSWD)) {
1118                         const uchar *lm_pw =  pdb_get_lanman_passwd(sampass);
1119                         if (lm_pw) {
1120                                 pdb_sethexpwd(temp, lm_pw,
1121                                               pdb_get_acct_ctrl(sampass));
1122                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1123                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1124                                                  temp);
1125                         } else {
1126                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1127                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1128                                                  NULL);
1129                         }
1130                 }
1131                 if (need_update(sampass, PDB_NTPASSWD)) {
1132                         const uchar *nt_pw =  pdb_get_nt_passwd(sampass);
1133                         if (nt_pw) {
1134                                 pdb_sethexpwd(temp, nt_pw,
1135                                               pdb_get_acct_ctrl(sampass));
1136                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1137                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1138                                                  temp);
1139                         } else {
1140                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1141                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1142                                                  NULL);
1143                         }
1144                 }
1145
1146                 if (need_update(sampass, PDB_PWHISTORY)) {
1147                         uint32 pwHistLen = 0;
1148                         pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
1149                         if (pwHistLen == 0) {
1150                                 /* Remove any password history from the LDAP store. */
1151                                 memset(temp, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1152                                 temp[64] = '\0';
1153                         } else {
1154                                 int i;
1155                                 uint32 currHistLen = 0;
1156                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1157                                 if (pwhist != NULL) {
1158                                         /* We can only store (sizeof(pstring)-1)/64 password history entries. */
1159                                         pwHistLen = MIN(pwHistLen, ((sizeof(temp)-1)/64));
1160                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1161                                                 /* Store the salt. */
1162                                                 pdb_sethexpwd(&temp[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1163                                                 /* Followed by the md5 hash of salt + md4 hash */
1164                                                 pdb_sethexpwd(&temp[(i*64)+32],
1165                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1166                                                 DEBUG(100, ("temp=%s\n", temp));
1167                                         }
1168                                 }
1169                         }
1170                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1171                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1172                                          temp);
1173                 }
1174
1175                 if (need_update(sampass, PDB_PASSLASTSET)) {
1176                         slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_last_set_time(sampass));
1177                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1178                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1179                                 temp);
1180                 }
1181         }
1182
1183         if (need_update(sampass, PDB_HOURS)) {
1184                 const uint8 *hours = pdb_get_hours(sampass);
1185                 if (hours) {
1186                         pdb_sethexhours(temp, hours);
1187                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1188                                 existing,
1189                                 mods,
1190                                 get_userattr_key2string(ldap_state->schema_ver,
1191                                                 LDAP_ATTR_LOGON_HOURS),
1192                                 temp);
1193                 }
1194         }
1195
1196         if (need_update(sampass, PDB_ACCTCTRL))
1197                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1198                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1199                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1200
1201         /* password lockout cache:
1202            - If we are now autolocking or clearing, we write to ldap
1203            - If we are clearing, we delete the cache entry
1204            - If the count is > 0, we update the cache
1205
1206            This even means when autolocking, we cache, just in case the
1207            update doesn't work, and we have to cache the autolock flag */
1208
1209         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1210             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1211                 uint16 badcount = pdb_get_bad_password_count(sampass);
1212                 time_t badtime = pdb_get_bad_password_time(sampass);
1213                 uint32 pol;
1214                 pdb_get_account_policy(AP_BAD_ATTEMPT_LOCKOUT, &pol);
1215
1216                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1217                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1218
1219                 if ((badcount >= pol) || (badcount == 0)) {
1220                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1221                                 (unsigned int)badcount, (unsigned int)badtime));
1222                         slprintf (temp, sizeof (temp) - 1, "%li", (long)badcount);
1223                         smbldap_make_mod(
1224                                 ldap_state->smbldap_state->ldap_struct,
1225                                 existing, mods,
1226                                 get_userattr_key2string(
1227                                         ldap_state->schema_ver,
1228                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1229                                 temp);
1230
1231                         slprintf (temp, sizeof (temp) - 1, "%li", badtime);
1232                         smbldap_make_mod(
1233                                 ldap_state->smbldap_state->ldap_struct,
1234                                 existing, mods,
1235                                 get_userattr_key2string(
1236                                         ldap_state->schema_ver,
1237                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1238                                 temp);
1239                 }
1240                 if (badcount == 0) {
1241                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1242                         login_cache_delentry(sampass);
1243                 } else {
1244                         LOGIN_CACHE cache_entry;
1245
1246                         cache_entry.entry_timestamp = time(NULL);
1247                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1248                         cache_entry.bad_password_count = badcount;
1249                         cache_entry.bad_password_time = badtime;
1250
1251                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1252                         login_cache_write(sampass, cache_entry);
1253                 }
1254         }
1255
1256         return True;
1257 }
1258
1259 /**********************************************************************
1260  Connect to LDAP server for password enumeration.
1261 *********************************************************************/
1262
1263 static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, BOOL update, uint32 acb_mask)
1264 {
1265         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1266         int rc;
1267         pstring filter, suffix;
1268         const char **attr_list;
1269         BOOL machine_mask = False, user_mask = False;
1270
1271         pstr_sprintf( filter, "(&%s%s)", "(uid=%u)",
1272                 get_objclass_filter(ldap_state->schema_ver));
1273         all_string_sub(filter, "%u", "*", sizeof(pstring));
1274
1275         machine_mask    = ((acb_mask != 0) && (acb_mask & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)));
1276         user_mask       = ((acb_mask != 0) && (acb_mask & ACB_NORMAL));
1277
1278         if (machine_mask) {
1279                 pstrcpy(suffix, lp_ldap_machine_suffix());
1280         } else if (user_mask) {
1281                 pstrcpy(suffix, lp_ldap_user_suffix());
1282         } else {
1283                 pstrcpy(suffix, lp_ldap_suffix());
1284         }
1285
1286         DEBUG(10,("ldapsam_setsampwent: LDAP Query for acb_mask 0x%x will use suffix %s\n",
1287                 acb_mask, suffix));
1288
1289         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1290         rc = smbldap_search(ldap_state->smbldap_state, suffix, LDAP_SCOPE_SUBTREE, filter,
1291                             attr_list, 0, &ldap_state->result);
1292         TALLOC_FREE( attr_list );
1293
1294         if (rc != LDAP_SUCCESS) {
1295                 DEBUG(0, ("ldapsam_setsampwent: LDAP search failed: %s\n", ldap_err2string(rc)));
1296                 DEBUG(3, ("ldapsam_setsampwent: Query was: %s, %s\n", suffix, filter));
1297                 ldap_msgfree(ldap_state->result);
1298                 ldap_state->result = NULL;
1299                 return NT_STATUS_UNSUCCESSFUL;
1300         }
1301
1302         DEBUG(2, ("ldapsam_setsampwent: %d entries in the base %s\n",
1303                 ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
1304                 ldap_state->result), suffix));
1305
1306         ldap_state->entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
1307                                  ldap_state->result);
1308         ldap_state->index = 0;
1309
1310         return NT_STATUS_OK;
1311 }
1312
1313 /**********************************************************************
1314  End enumeration of the LDAP password list.
1315 *********************************************************************/
1316
1317 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1318 {
1319         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1320         if (ldap_state->result) {
1321                 ldap_msgfree(ldap_state->result);
1322                 ldap_state->result = NULL;
1323         }
1324 }
1325
1326 /**********************************************************************
1327 Get the next entry in the LDAP password database.
1328 *********************************************************************/
1329
1330 static NTSTATUS ldapsam_getsampwent(struct pdb_methods *my_methods,
1331                                     struct samu *user)
1332 {
1333         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1334         struct ldapsam_privates *ldap_state =
1335                 (struct ldapsam_privates *)my_methods->private_data;
1336         BOOL bret = False;
1337
1338         while (!bret) {
1339                 if (!ldap_state->entry)
1340                         return ret;
1341
1342                 ldap_state->index++;
1343                 bret = init_sam_from_ldap(ldap_state, user, ldap_state->entry);
1344
1345                 ldap_state->entry = ldap_next_entry(priv2ld(ldap_state),
1346                                                     ldap_state->entry);
1347         }
1348
1349         return NT_STATUS_OK;
1350 }
1351
1352 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1353                         const char *new_attr)
1354 {
1355         int i;
1356
1357         if (new_attr == NULL) {
1358                 return;
1359         }
1360
1361         for (i=0; (*attr_list)[i] != NULL; i++) {
1362                 ;
1363         }
1364
1365         (*attr_list) = TALLOC_REALLOC_ARRAY(mem_ctx, (*attr_list),
1366                                             const char *,  i+2);
1367         SMB_ASSERT((*attr_list) != NULL);
1368         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1369         (*attr_list)[i+1] = NULL;
1370 }
1371
1372 /**********************************************************************
1373 Get struct samu entry from LDAP by username.
1374 *********************************************************************/
1375
1376 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1377 {
1378         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1379         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1380         LDAPMessage *result = NULL;
1381         LDAPMessage *entry = NULL;
1382         int count;
1383         const char ** attr_list;
1384         int rc;
1385
1386         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1387         append_attr(user, &attr_list,
1388                     get_userattr_key2string(ldap_state->schema_ver,
1389                                             LDAP_ATTR_MOD_TIMESTAMP));
1390         append_attr(user, &attr_list, "uidNumber");
1391         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1392                                            attr_list);
1393         TALLOC_FREE( attr_list );
1394
1395         if ( rc != LDAP_SUCCESS )
1396                 return NT_STATUS_NO_SUCH_USER;
1397
1398         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1399
1400         if (count < 1) {
1401                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1402                 ldap_msgfree(result);
1403                 return NT_STATUS_NO_SUCH_USER;
1404         } else if (count > 1) {
1405                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1406                 ldap_msgfree(result);
1407                 return NT_STATUS_NO_SUCH_USER;
1408         }
1409
1410         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1411         if (entry) {
1412                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1413                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1414                         ldap_msgfree(result);
1415                         return NT_STATUS_NO_SUCH_USER;
1416                 }
1417                 pdb_set_backend_private_data(user, result, NULL,
1418                                              my_methods, PDB_CHANGED);
1419                 talloc_autofree_ldapmsg(user, result);
1420                 ret = NT_STATUS_OK;
1421         } else {
1422                 ldap_msgfree(result);
1423         }
1424         return ret;
1425 }
1426
1427 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1428                                    const DOM_SID *sid, LDAPMessage **result)
1429 {
1430         int rc = -1;
1431         const char ** attr_list;
1432         uint32 rid;
1433
1434         switch ( ldap_state->schema_ver ) {
1435                 case SCHEMAVER_SAMBASAMACCOUNT: {
1436                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1437                         if (tmp_ctx == NULL) {
1438                                 return LDAP_NO_MEMORY;
1439                         }
1440
1441                         attr_list = get_userattr_list(tmp_ctx,
1442                                                       ldap_state->schema_ver);
1443                         append_attr(tmp_ctx, &attr_list,
1444                                     get_userattr_key2string(
1445                                             ldap_state->schema_ver,
1446                                             LDAP_ATTR_MOD_TIMESTAMP));
1447                         append_attr(tmp_ctx, &attr_list, "uidNumber");
1448                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1449                                                           result, attr_list);
1450                         TALLOC_FREE(tmp_ctx);
1451
1452                         if ( rc != LDAP_SUCCESS )
1453                                 return rc;
1454                         break;
1455                 }
1456
1457                 case SCHEMAVER_SAMBAACCOUNT:
1458                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1459                                 return rc;
1460                         }
1461
1462                         attr_list = get_userattr_list(NULL,
1463                                                       ldap_state->schema_ver);
1464                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1465                         TALLOC_FREE( attr_list );
1466
1467                         if ( rc != LDAP_SUCCESS )
1468                                 return rc;
1469                         break;
1470         }
1471         return rc;
1472 }
1473
1474 /**********************************************************************
1475  Get struct samu entry from LDAP by SID.
1476 *********************************************************************/
1477
1478 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const DOM_SID *sid)
1479 {
1480         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1481         LDAPMessage *result = NULL;
1482         LDAPMessage *entry = NULL;
1483         int count;
1484         int rc;
1485         fstring sid_string;
1486
1487         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1488                                           sid, &result);
1489         if (rc != LDAP_SUCCESS)
1490                 return NT_STATUS_NO_SUCH_USER;
1491
1492         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1493
1494         if (count < 1) {
1495                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] count=%d\n", sid_to_string(sid_string, sid),
1496                        count));
1497                 ldap_msgfree(result);
1498                 return NT_STATUS_NO_SUCH_USER;
1499         }  else if (count > 1) {
1500                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID [%s]. Failing. count=%d\n", sid_to_string(sid_string, sid),
1501                        count));
1502                 ldap_msgfree(result);
1503                 return NT_STATUS_NO_SUCH_USER;
1504         }
1505
1506         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1507         if (!entry) {
1508                 ldap_msgfree(result);
1509                 return NT_STATUS_NO_SUCH_USER;
1510         }
1511
1512         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1513                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1514                 ldap_msgfree(result);
1515                 return NT_STATUS_NO_SUCH_USER;
1516         }
1517
1518         pdb_set_backend_private_data(user, result, NULL,
1519                                      my_methods, PDB_CHANGED);
1520         talloc_autofree_ldapmsg(user, result);
1521         return NT_STATUS_OK;
1522 }
1523
1524 /********************************************************************
1525  Do the actual modification - also change a plaintext passord if
1526  it it set.
1527 **********************************************************************/
1528
1529 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1530                                      struct samu *newpwd, char *dn,
1531                                      LDAPMod **mods, int ldap_op,
1532                                      BOOL (*need_update)(const struct samu *, enum pdb_elements))
1533 {
1534         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1535         int rc;
1536
1537         if (!newpwd || !dn) {
1538                 return NT_STATUS_INVALID_PARAMETER;
1539         }
1540
1541         if (!mods) {
1542                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1543                 /* may be password change below however */
1544         } else {
1545                 switch(ldap_op) {
1546                         case LDAP_MOD_ADD:
1547                                 if (ldap_state->is_nds_ldap) {
1548                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1549                                                         "objectclass",
1550                                                         "inetOrgPerson");
1551                                 } else {
1552                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1553                                                         "objectclass",
1554                                                         LDAP_OBJ_ACCOUNT);
1555                                 }
1556                                 rc = smbldap_add(ldap_state->smbldap_state,
1557                                                  dn, mods);
1558                                 break;
1559                         case LDAP_MOD_REPLACE:
1560                                 rc = smbldap_modify(ldap_state->smbldap_state,
1561                                                     dn ,mods);
1562                                 break;
1563                         default:
1564                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1565                                          ldap_op));
1566                                 return NT_STATUS_INVALID_PARAMETER;
1567                 }
1568
1569                 if (rc!=LDAP_SUCCESS) {
1570                         return NT_STATUS_UNSUCCESSFUL;
1571                 }
1572         }
1573
1574         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1575                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1576                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1577                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1578                 BerElement *ber;
1579                 struct berval *bv;
1580                 char *retoid = NULL;
1581                 struct berval *retdata = NULL;
1582                 char *utf8_password;
1583                 char *utf8_dn;
1584
1585                 if (!ldap_state->is_nds_ldap) {
1586
1587                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1588                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1589                                 DEBUG(2, ("ldap password change requested, but LDAP "
1590                                           "server does not support it -- ignoring\n"));
1591                                 return NT_STATUS_OK;
1592                         }
1593                 }
1594
1595                 if (push_utf8_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
1596                         return NT_STATUS_NO_MEMORY;
1597                 }
1598
1599                 if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
1600                         SAFE_FREE(utf8_password);
1601                         return NT_STATUS_NO_MEMORY;
1602                 }
1603
1604                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1605                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1606                         SAFE_FREE(utf8_password);
1607                         SAFE_FREE(utf8_dn);
1608                         return NT_STATUS_UNSUCCESSFUL;
1609                 }
1610
1611                 ber_printf (ber, "{");
1612                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn);
1613                 ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password);
1614                 ber_printf (ber, "N}");
1615
1616                 if ((rc = ber_flatten (ber, &bv))<0) {
1617                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1618                         ber_free(ber,1);
1619                         SAFE_FREE(utf8_dn);
1620                         SAFE_FREE(utf8_password);
1621                         return NT_STATUS_UNSUCCESSFUL;
1622                 }
1623
1624                 SAFE_FREE(utf8_dn);
1625                 SAFE_FREE(utf8_password);
1626                 ber_free(ber, 1);
1627
1628                 if (!ldap_state->is_nds_ldap) {
1629                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1630                                                         LDAP_EXOP_MODIFY_PASSWD,
1631                                                         bv, NULL, NULL, &retoid,
1632                                                         &retdata);
1633                 } else {
1634                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1635                                                         pdb_get_plaintext_passwd(newpwd));
1636                 }
1637                 if (rc != LDAP_SUCCESS) {
1638                         char *ld_error = NULL;
1639
1640                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1641                                 DEBUG(3, ("Could not set userPassword "
1642                                           "attribute due to an objectClass "
1643                                           "violation -- ignoring\n"));
1644                                 ber_bvfree(bv);
1645                                 return NT_STATUS_OK;
1646                         }
1647
1648                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1649                                         &ld_error);
1650                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1651                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1652                         SAFE_FREE(ld_error);
1653                         ber_bvfree(bv);
1654                         return NT_STATUS_UNSUCCESSFUL;
1655                 } else {
1656                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1657 #ifdef DEBUG_PASSWORD
1658                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1659 #endif
1660                         if (retdata)
1661                                 ber_bvfree(retdata);
1662                         if (retoid)
1663                                 ldap_memfree(retoid);
1664                 }
1665                 ber_bvfree(bv);
1666         }
1667         return NT_STATUS_OK;
1668 }
1669
1670 /**********************************************************************
1671  Delete entry from LDAP for username.
1672 *********************************************************************/
1673
1674 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1675                                            struct samu * sam_acct)
1676 {
1677         struct ldapsam_privates *priv =
1678                 (struct ldapsam_privates *)my_methods->private_data;
1679         const char *sname;
1680         int rc;
1681         LDAPMessage *msg, *entry;
1682         NTSTATUS result = NT_STATUS_NO_MEMORY;
1683         const char **attr_list;
1684         TALLOC_CTX *mem_ctx;
1685
1686         if (!sam_acct) {
1687                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1688                 return NT_STATUS_INVALID_PARAMETER;
1689         }
1690
1691         sname = pdb_get_username(sam_acct);
1692
1693         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1694                   "LDAP.\n", sname));
1695
1696         mem_ctx = talloc_new(NULL);
1697         if (mem_ctx == NULL) {
1698                 DEBUG(0, ("talloc_new failed\n"));
1699                 goto done;
1700         }
1701
1702         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1703         if (attr_list == NULL) {
1704                 goto done;
1705         }
1706
1707         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1708
1709         if ((rc != LDAP_SUCCESS) ||
1710             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1711             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1712                 DEBUG(5, ("Could not find user %s\n", sname));
1713                 result = NT_STATUS_NO_SUCH_USER;
1714                 goto done;
1715         }
1716
1717         rc = ldapsam_delete_entry(
1718                 priv, mem_ctx, entry,
1719                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1720                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1721                 attr_list);
1722
1723         result = (rc == LDAP_SUCCESS) ?
1724                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1725
1726  done:
1727         TALLOC_FREE(mem_ctx);
1728         return result;
1729 }
1730
1731 /**********************************************************************
1732  Helper function to determine for update_sam_account whether
1733  we need LDAP modification.
1734 *********************************************************************/
1735
1736 static BOOL element_is_changed(const struct samu *sampass,
1737                                enum pdb_elements element)
1738 {
1739         return IS_SAM_CHANGED(sampass, element);
1740 }
1741
1742 /**********************************************************************
1743  Update struct samu.
1744 *********************************************************************/
1745
1746 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1747 {
1748         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1749         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1750         int rc = 0;
1751         char *dn;
1752         LDAPMessage *result = NULL;
1753         LDAPMessage *entry = NULL;
1754         LDAPMod **mods = NULL;
1755         const char **attr_list;
1756
1757         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1758         if (!result) {
1759                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1760                 if (pdb_get_username(newpwd) == NULL) {
1761                         return NT_STATUS_INVALID_PARAMETER;
1762                 }
1763                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1764                 TALLOC_FREE( attr_list );
1765                 if (rc != LDAP_SUCCESS) {
1766                         return NT_STATUS_UNSUCCESSFUL;
1767                 }
1768                 pdb_set_backend_private_data(newpwd, result, NULL,
1769                                              my_methods, PDB_CHANGED);
1770                 talloc_autofree_ldapmsg(newpwd, result);
1771         }
1772
1773         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1774                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1775                 return NT_STATUS_UNSUCCESSFUL;
1776         }
1777
1778         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1779         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
1780         if (!dn) {
1781                 return NT_STATUS_UNSUCCESSFUL;
1782         }
1783
1784         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1785
1786         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
1787                                 element_is_changed)) {
1788                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
1789                 SAFE_FREE(dn);
1790                 if (mods != NULL)
1791                         ldap_mods_free(mods,True);
1792                 return NT_STATUS_UNSUCCESSFUL;
1793         }
1794
1795         if (mods == NULL) {
1796                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
1797                          pdb_get_username(newpwd)));
1798                 SAFE_FREE(dn);
1799                 return NT_STATUS_OK;
1800         }
1801
1802         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
1803         ldap_mods_free(mods,True);
1804         SAFE_FREE(dn);
1805
1806         /*
1807          * We need to set the backend private data to NULL here. For example
1808          * setuserinfo level 25 does a pdb_update_sam_account twice on the
1809          * same one, and with the explicit delete / add logic for attribute
1810          * values the second time we would use the wrong "old" value which
1811          * does not exist in LDAP anymore. Thus the LDAP server would refuse
1812          * the update.
1813          * The existing LDAPMessage is still being auto-freed by the
1814          * destructor.
1815          */
1816         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
1817                                      PDB_CHANGED);
1818
1819         if (!NT_STATUS_IS_OK(ret)) {
1820                 return ret;
1821         }
1822
1823         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
1824                   pdb_get_username(newpwd)));
1825         return NT_STATUS_OK;
1826 }
1827
1828 /***************************************************************************
1829  Renames a struct samu
1830  - The "rename user script" has full responsibility for changing everything
1831 ***************************************************************************/
1832
1833 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
1834                                            struct samu *old_acct,
1835                                            const char *newname)
1836 {
1837         const char *oldname;
1838         int rc;
1839         pstring rename_script;
1840         fstring oldname_lower, newname_lower;
1841
1842         if (!old_acct) {
1843                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
1844                 return NT_STATUS_INVALID_PARAMETER;
1845         }
1846         if (!newname) {
1847                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
1848                 return NT_STATUS_INVALID_PARAMETER;
1849         }
1850
1851         oldname = pdb_get_username(old_acct);
1852
1853         /* rename the posix user */
1854         pstrcpy(rename_script, lp_renameuser_script());
1855
1856         if (!(*rename_script))
1857                 return NT_STATUS_ACCESS_DENIED;
1858
1859         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
1860                    oldname, newname));
1861
1862         /* We have to allow the account name to end with a '$'.
1863            Also, follow the semantics in _samr_create_user() and lower case the
1864            posix name but preserve the case in passdb */
1865
1866         fstrcpy( oldname_lower, oldname );
1867         strlower_m( oldname_lower );
1868         fstrcpy( newname_lower, newname );
1869         strlower_m( newname_lower );
1870         string_sub2(rename_script, "%unew", newname_lower, sizeof(pstring),
1871                     True, False, True);
1872         string_sub2(rename_script, "%uold", oldname_lower, sizeof(pstring),
1873                     True, False, True);
1874         rc = smbrun(rename_script, NULL);
1875
1876         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
1877                           rename_script, rc));
1878
1879         if (rc == 0) {
1880                 smb_nscd_flush_user_cache();
1881         }
1882
1883         if (rc)
1884                 return NT_STATUS_UNSUCCESSFUL;
1885
1886         return NT_STATUS_OK;
1887 }
1888
1889 /**********************************************************************
1890  Helper function to determine for update_sam_account whether
1891  we need LDAP modification.
1892  *********************************************************************/
1893
1894 static BOOL element_is_set_or_changed(const struct samu *sampass,
1895                                       enum pdb_elements element)
1896 {
1897         return (IS_SAM_SET(sampass, element) ||
1898                 IS_SAM_CHANGED(sampass, element));
1899 }
1900
1901 /**********************************************************************
1902  Add struct samu to LDAP.
1903 *********************************************************************/
1904
1905 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1906 {
1907         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1908         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1909         int rc;
1910         LDAPMessage     *result = NULL;
1911         LDAPMessage     *entry  = NULL;
1912         pstring         dn;
1913         LDAPMod         **mods = NULL;
1914         int             ldap_op = LDAP_MOD_REPLACE;
1915         uint32          num_result;
1916         const char      **attr_list;
1917         char            *escape_user;
1918         const char      *username = pdb_get_username(newpwd);
1919         const DOM_SID   *sid = pdb_get_user_sid(newpwd);
1920         pstring         filter;
1921         fstring         sid_string;
1922
1923         if (!username || !*username) {
1924                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
1925                 return NT_STATUS_INVALID_PARAMETER;
1926         }
1927
1928         /* free this list after the second search or in case we exit on failure */
1929         attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1930
1931         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
1932
1933         if (rc != LDAP_SUCCESS) {
1934                 TALLOC_FREE( attr_list );
1935                 return NT_STATUS_UNSUCCESSFUL;
1936         }
1937
1938         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1939                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
1940                          username));
1941                 ldap_msgfree(result);
1942                 TALLOC_FREE( attr_list );
1943                 return NT_STATUS_UNSUCCESSFUL;
1944         }
1945         ldap_msgfree(result);
1946         result = NULL;
1947
1948         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
1949                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1950                                                   sid, &result);
1951                 if (rc == LDAP_SUCCESS) {
1952                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
1953                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' already in the base, with samba attributes\n",
1954                                          sid_to_string(sid_string, sid)));
1955                                 TALLOC_FREE( attr_list );
1956                                 ldap_msgfree(result);
1957                                 return NT_STATUS_UNSUCCESSFUL;
1958                         }
1959                         ldap_msgfree(result);
1960                 }
1961         }
1962
1963         /* does the entry already exist but without a samba attributes?
1964            we need to return the samba attributes here */
1965
1966         escape_user = escape_ldap_string_alloc( username );
1967         pstrcpy( filter, "(uid=%u)" );
1968         all_string_sub( filter, "%u", escape_user, sizeof(filter) );
1969         SAFE_FREE( escape_user );
1970
1971         rc = smbldap_search_suffix(ldap_state->smbldap_state,
1972                                    filter, attr_list, &result);
1973         if ( rc != LDAP_SUCCESS ) {
1974                 TALLOC_FREE( attr_list );
1975                 return NT_STATUS_UNSUCCESSFUL;
1976         }
1977
1978         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1979
1980         if (num_result > 1) {
1981                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
1982                 TALLOC_FREE( attr_list );
1983                 ldap_msgfree(result);
1984                 return NT_STATUS_UNSUCCESSFUL;
1985         }
1986
1987         /* Check if we need to update an existing entry */
1988         if (num_result == 1) {
1989                 char *tmp;
1990
1991                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
1992                 ldap_op = LDAP_MOD_REPLACE;
1993                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
1994                 tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
1995                 if (!tmp) {
1996                         TALLOC_FREE( attr_list );
1997                         ldap_msgfree(result);
1998                         return NT_STATUS_UNSUCCESSFUL;
1999                 }
2000                 slprintf (dn, sizeof (dn) - 1, "%s", tmp);
2001                 SAFE_FREE(tmp);
2002
2003         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2004
2005                 /* There might be a SID for this account already - say an idmap entry */
2006
2007                 pstr_sprintf(filter, "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2008                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
2009                          sid_to_string(sid_string, sid),
2010                          LDAP_OBJ_IDMAP_ENTRY,
2011                          LDAP_OBJ_SID_ENTRY);
2012
2013                 /* free old result before doing a new search */
2014                 if (result != NULL) {
2015                         ldap_msgfree(result);
2016                         result = NULL;
2017                 }
2018                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2019                                            filter, attr_list, &result);
2020
2021                 if ( rc != LDAP_SUCCESS ) {
2022                         TALLOC_FREE( attr_list );
2023                         return NT_STATUS_UNSUCCESSFUL;
2024                 }
2025
2026                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2027
2028                 if (num_result > 1) {
2029                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2030                         TALLOC_FREE( attr_list );
2031                         ldap_msgfree(result);
2032                         return NT_STATUS_UNSUCCESSFUL;
2033                 }
2034
2035                 /* Check if we need to update an existing entry */
2036                 if (num_result == 1) {
2037                         char *tmp;
2038
2039                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2040                         ldap_op = LDAP_MOD_REPLACE;
2041                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2042                         tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
2043                         if (!tmp) {
2044                                 TALLOC_FREE( attr_list );
2045                                 ldap_msgfree(result);
2046                                 return NT_STATUS_UNSUCCESSFUL;
2047                         }
2048                         slprintf (dn, sizeof (dn) - 1, "%s", tmp);
2049                         SAFE_FREE(tmp);
2050                 }
2051         }
2052
2053         TALLOC_FREE( attr_list );
2054
2055         if (num_result == 0) {
2056                 char *escape_username;
2057                 /* Check if we need to add an entry */
2058                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2059                 ldap_op = LDAP_MOD_ADD;
2060
2061                 escape_username = escape_rdn_val_string_alloc(username);
2062                 if (!escape_username) {
2063                         DEBUG(0, ("Out of memory!\n"));
2064                         ldap_msgfree(result);
2065                         return NT_STATUS_NO_MEMORY;
2066                 }
2067
2068                 if (username[strlen(username)-1] == '$') {
2069                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", escape_username, lp_ldap_machine_suffix ());
2070                 } else {
2071                         slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", escape_username, lp_ldap_user_suffix ());
2072                 }
2073
2074                 SAFE_FREE(escape_username);
2075         }
2076
2077         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2078                                 element_is_set_or_changed)) {
2079                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2080                 ldap_msgfree(result);
2081                 if (mods != NULL)
2082                         ldap_mods_free(mods,True);
2083                 return NT_STATUS_UNSUCCESSFUL;
2084         }
2085
2086         ldap_msgfree(result);
2087
2088         if (mods == NULL) {
2089                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2090                 return NT_STATUS_UNSUCCESSFUL;
2091         }
2092         switch ( ldap_state->schema_ver ) {
2093                 case SCHEMAVER_SAMBAACCOUNT:
2094                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2095                         break;
2096                 case SCHEMAVER_SAMBASAMACCOUNT:
2097                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2098                         break;
2099                 default:
2100                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2101                         break;
2102         }
2103
2104         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2105         if (!NT_STATUS_IS_OK(ret)) {
2106                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2107                          pdb_get_username(newpwd),dn));
2108                 ldap_mods_free(mods, True);
2109                 return ret;
2110         }
2111
2112         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2113         ldap_mods_free(mods, True);
2114
2115         return NT_STATUS_OK;
2116 }
2117
2118 /**********************************************************************
2119  *********************************************************************/
2120
2121 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2122                                      const char *filter,
2123                                      LDAPMessage ** result)
2124 {
2125         int scope = LDAP_SCOPE_SUBTREE;
2126         int rc;
2127         const char **attr_list;
2128
2129         attr_list = get_attr_list(NULL, groupmap_attr_list);
2130         rc = smbldap_search(ldap_state->smbldap_state,
2131                             lp_ldap_group_suffix (), scope,
2132                             filter, attr_list, 0, result);
2133         TALLOC_FREE(attr_list);
2134
2135         return rc;
2136 }
2137
2138 /**********************************************************************
2139  *********************************************************************/
2140
2141 static BOOL init_group_from_ldap(struct ldapsam_privates *ldap_state,
2142                                  GROUP_MAP *map, LDAPMessage *entry)
2143 {
2144         pstring temp;
2145
2146         if (ldap_state == NULL || map == NULL || entry == NULL ||
2147                         ldap_state->smbldap_state->ldap_struct == NULL) {
2148                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2149                 return False;
2150         }
2151
2152         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2153                         get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER), temp)) {
2154                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2155                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2156                 return False;
2157         }
2158         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2159
2160         map->gid = (gid_t)atol(temp);
2161
2162         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2163                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID), temp)) {
2164                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2165                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2166                 return False;
2167         }
2168
2169         if (!string_to_sid(&map->sid, temp)) {
2170                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2171                 return False;
2172         }
2173
2174         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2175                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE), temp)) {
2176                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2177                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2178                 return False;
2179         }
2180         map->sid_name_use = (enum lsa_SidType)atol(temp);
2181
2182         if ((map->sid_name_use < SID_NAME_USER) ||
2183                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2184                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2185                 return False;
2186         }
2187
2188         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2189                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), temp)) {
2190                 temp[0] = '\0';
2191                 if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2192                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_CN), temp))
2193                 {
2194                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2195 for gidNumber(%lu)\n",(unsigned long)map->gid));
2196                         return False;
2197                 }
2198         }
2199         fstrcpy(map->nt_name, temp);
2200
2201         if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
2202                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DESC), temp)) {
2203                 temp[0] = '\0';
2204         }
2205         fstrcpy(map->comment, temp);
2206
2207         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
2208                 store_gid_sid_cache(&map->sid, map->gid);
2209         }
2210
2211         return True;
2212 }
2213
2214 /**********************************************************************
2215  *********************************************************************/
2216
2217 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2218                                  const char *filter,
2219                                  GROUP_MAP *map)
2220 {
2221         struct ldapsam_privates *ldap_state =
2222                 (struct ldapsam_privates *)methods->private_data;
2223         LDAPMessage *result = NULL;
2224         LDAPMessage *entry = NULL;
2225         int count;
2226
2227         if (ldapsam_search_one_group(ldap_state, filter, &result)
2228             != LDAP_SUCCESS) {
2229                 return NT_STATUS_NO_SUCH_GROUP;
2230         }
2231
2232         count = ldap_count_entries(priv2ld(ldap_state), result);
2233
2234         if (count < 1) {
2235                 DEBUG(4, ("ldapsam_getgroup: Did not find group\n"));
2236                 ldap_msgfree(result);
2237                 return NT_STATUS_NO_SUCH_GROUP;
2238         }
2239
2240         if (count > 1) {
2241                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2242                           "count=%d\n", filter, count));
2243                 ldap_msgfree(result);
2244                 return NT_STATUS_NO_SUCH_GROUP;
2245         }
2246
2247         entry = ldap_first_entry(priv2ld(ldap_state), result);
2248
2249         if (!entry) {
2250                 ldap_msgfree(result);
2251                 return NT_STATUS_UNSUCCESSFUL;
2252         }
2253
2254         if (!init_group_from_ldap(ldap_state, map, entry)) {
2255                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2256                           "group filter %s\n", filter));
2257                 ldap_msgfree(result);
2258                 return NT_STATUS_NO_SUCH_GROUP;
2259         }
2260
2261         ldap_msgfree(result);
2262         return NT_STATUS_OK;
2263 }
2264
2265 /**********************************************************************
2266  *********************************************************************/
2267
2268 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2269                                  DOM_SID sid)
2270 {
2271         pstring filter;
2272
2273         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
2274                 LDAP_OBJ_GROUPMAP,
2275                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2276                 sid_string_static(&sid));
2277
2278         return ldapsam_getgroup(methods, filter, map);
2279 }
2280
2281 /**********************************************************************
2282  *********************************************************************/
2283
2284 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2285                                  gid_t gid)
2286 {
2287         pstring filter;
2288
2289         pstr_sprintf(filter, "(&(objectClass=%s)(%s=%lu))",
2290                 LDAP_OBJ_GROUPMAP,
2291                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2292                 (unsigned long)gid);
2293
2294         return ldapsam_getgroup(methods, filter, map);
2295 }
2296
2297 /**********************************************************************
2298  *********************************************************************/
2299
2300 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2301                                  const char *name)
2302 {
2303         pstring filter;
2304         char *escape_name = escape_ldap_string_alloc(name);
2305
2306         if (!escape_name) {
2307                 return NT_STATUS_NO_MEMORY;
2308         }
2309
2310         pstr_sprintf(filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2311                 LDAP_OBJ_GROUPMAP,
2312                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2313                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN), escape_name);
2314
2315         SAFE_FREE(escape_name);
2316
2317         return ldapsam_getgroup(methods, filter, map);
2318 }
2319
2320 static BOOL ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2321                                            LDAPMessage *entry,
2322                                            const DOM_SID *domain_sid,
2323                                            uint32 *rid)
2324 {
2325         fstring str;
2326         DOM_SID sid;
2327
2328         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2329                                           str, sizeof(str)-1)) {
2330                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2331                 return False;
2332         }
2333
2334         if (!string_to_sid(&sid, str)) {
2335                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2336                 return False;
2337         }
2338
2339         if (sid_compare_domain(&sid, domain_sid) != 0) {
2340                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2341                            str, sid_string_static(domain_sid)));
2342                 return False;
2343         }
2344
2345         if (!sid_peek_rid(&sid, rid)) {
2346                 DEBUG(10, ("Could not peek into RID\n"));
2347                 return False;
2348         }
2349
2350         return True;
2351 }
2352
2353 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2354                                            TALLOC_CTX *mem_ctx,
2355                                            const DOM_SID *group,
2356                                            uint32 **pp_member_rids,
2357                                            size_t *p_num_members)
2358 {
2359         struct ldapsam_privates *ldap_state =
2360                 (struct ldapsam_privates *)methods->private_data;
2361         struct smbldap_state *conn = ldap_state->smbldap_state;
2362         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2363         const char *sid_attrs[] = { "sambaSID", NULL };
2364         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2365         LDAPMessage *result = NULL;
2366         LDAPMessage *entry;
2367         char *filter;
2368         char **values = NULL;
2369         char **memberuid;
2370         char *gidstr;
2371         int rc, count;
2372
2373         *pp_member_rids = NULL;
2374         *p_num_members = 0;
2375
2376         filter = talloc_asprintf(mem_ctx,
2377                                  "(&(objectClass=%s)"
2378                                  "(objectClass=%s)"
2379                                  "(sambaSID=%s))",
2380                                  LDAP_OBJ_POSIXGROUP,
2381                                  LDAP_OBJ_GROUPMAP,
2382                                  sid_string_static(group));
2383         if (filter == NULL) {
2384                 ret = NT_STATUS_NO_MEMORY;
2385                 goto done;
2386         }
2387
2388         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2389                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2390                             &result);
2391
2392         if (rc != LDAP_SUCCESS)
2393                 goto done;
2394
2395         talloc_autofree_ldapmsg(mem_ctx, result);
2396
2397         count = ldap_count_entries(conn->ldap_struct, result);
2398
2399         if (count > 1) {
2400                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2401                           sid_string_static(group)));
2402                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2403                 goto done;
2404         }
2405
2406         if (count == 0) {
2407                 ret = NT_STATUS_NO_SUCH_GROUP;
2408                 goto done;
2409         }
2410
2411         entry = ldap_first_entry(conn->ldap_struct, result);
2412         if (entry == NULL)
2413                 goto done;
2414
2415         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2416         if (!gidstr) {
2417                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2418                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2419                 goto done;
2420         }
2421
2422         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2423
2424         if (values) {
2425
2426                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2427                 if (filter == NULL) {
2428                         ret = NT_STATUS_NO_MEMORY;
2429                         goto done;
2430                 }
2431
2432                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2433                         char *escape_memberuid;
2434
2435                         escape_memberuid = escape_ldap_string_alloc(*memberuid);
2436                         if (escape_memberuid == NULL) {
2437                                 ret = NT_STATUS_NO_MEMORY;
2438                                 goto done;
2439                         }
2440
2441                         filter = talloc_asprintf_append(filter, "(uid=%s)", escape_memberuid);
2442                         if (filter == NULL) {
2443                                 SAFE_FREE(escape_memberuid);
2444                                 ret = NT_STATUS_NO_MEMORY;
2445                                 goto done;
2446                         }
2447
2448                         SAFE_FREE(escape_memberuid);
2449                 }
2450
2451                 filter = talloc_asprintf_append(filter, "))");
2452                 if (filter == NULL) {
2453                         ret = NT_STATUS_NO_MEMORY;
2454                         goto done;
2455                 }
2456
2457                 rc = smbldap_search(conn, lp_ldap_user_suffix(),
2458                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2459                                     &result);
2460
2461                 if (rc != LDAP_SUCCESS)
2462                         goto done;
2463
2464                 count = ldap_count_entries(conn->ldap_struct, result);
2465                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2466
2467                 talloc_autofree_ldapmsg(mem_ctx, result);
2468
2469                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2470                      entry != NULL;
2471                      entry = ldap_next_entry(conn->ldap_struct, entry))
2472                 {
2473                         char *sidstr;
2474                         DOM_SID sid;
2475                         uint32 rid;
2476
2477                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2478                                                                  entry, "sambaSID",
2479                                                                  mem_ctx);
2480                         if (!sidstr) {
2481                                 DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2482                                           "the sambaSID attribute\n"));
2483                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2484                                 goto done;
2485                         }
2486
2487                         if (!string_to_sid(&sid, sidstr))
2488                                 goto done;
2489
2490                         if (!sid_check_is_in_our_domain(&sid)) {
2491                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2492                                           "in our domain\n"));
2493                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2494                                 goto done;
2495                         }
2496
2497                         sid_peek_rid(&sid, &rid);
2498
2499                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2500                                                 p_num_members)) {
2501                                 ret = NT_STATUS_NO_MEMORY;
2502                                 goto done;
2503                         }
2504                 }
2505         }
2506
2507         filter = talloc_asprintf(mem_ctx,
2508                                  "(&(objectClass=%s)"
2509                                  "(gidNumber=%s))",
2510                                  LDAP_OBJ_SAMBASAMACCOUNT,
2511                                  gidstr);
2512
2513         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2514                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2515                             &result);
2516
2517         if (rc != LDAP_SUCCESS)
2518                 goto done;
2519
2520         talloc_autofree_ldapmsg(mem_ctx, result);
2521
2522         for (entry = ldap_first_entry(conn->ldap_struct, result);
2523              entry != NULL;
2524              entry = ldap_next_entry(conn->ldap_struct, entry))
2525         {
2526                 uint32 rid;
2527
2528                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2529                                                     entry,
2530                                                     get_global_sam_sid(),
2531                                                     &rid)) {
2532                         DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
2533                                   "the sambaSID attribute\n"));
2534                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2535                         goto done;
2536                 }
2537
2538                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2539                                         p_num_members)) {
2540                         ret = NT_STATUS_NO_MEMORY;
2541                         goto done;
2542                 }
2543         }
2544
2545         ret = NT_STATUS_OK;
2546
2547  done:
2548
2549         if (values)
2550                 ldap_value_free(values);
2551
2552         return ret;
2553 }
2554
2555 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2556                                                TALLOC_CTX *mem_ctx,
2557                                                struct samu *user,
2558                                                DOM_SID **pp_sids,
2559                                                gid_t **pp_gids,
2560                                                size_t *p_num_groups)
2561 {
2562         struct ldapsam_privates *ldap_state =
2563                 (struct ldapsam_privates *)methods->private_data;
2564         struct smbldap_state *conn = ldap_state->smbldap_state;
2565         char *filter;
2566         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2567         char *escape_name;
2568         int rc, count;
2569         LDAPMessage *result = NULL;
2570         LDAPMessage *entry;
2571         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2572         size_t num_sids, num_gids;
2573         char *gidstr;
2574         gid_t primary_gid = -1;
2575
2576         *pp_sids = NULL;
2577         num_sids = 0;
2578
2579         if (pdb_get_username(user) == NULL) {
2580                 return NT_STATUS_INVALID_PARAMETER;
2581         }
2582
2583         escape_name = escape_ldap_string_alloc(pdb_get_username(user));
2584         if (escape_name == NULL)
2585                 return NT_STATUS_NO_MEMORY;
2586
2587         /* retrieve the users primary gid */
2588         filter = talloc_asprintf(mem_ctx,
2589                                  "(&(objectClass=%s)(uid=%s))",
2590                                  LDAP_OBJ_SAMBASAMACCOUNT,
2591                                  escape_name);
2592         if (filter == NULL) {
2593                 ret = NT_STATUS_NO_MEMORY;
2594                 goto done;
2595         }
2596
2597         rc = smbldap_search(conn, lp_ldap_user_suffix(),
2598                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2599
2600         if (rc != LDAP_SUCCESS)
2601                 goto done;
2602
2603         talloc_autofree_ldapmsg(mem_ctx, result);
2604
2605         count = ldap_count_entries(priv2ld(ldap_state), result);
2606
2607         switch (count) {
2608         case 0:
2609                 DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2610                 ret = NT_STATUS_NO_SUCH_USER;
2611                 goto done;
2612         case 1:
2613                 entry = ldap_first_entry(priv2ld(ldap_state), result);
2614
2615                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2616                 if (!gidstr) {
2617                         DEBUG (1, ("Unable to find the member's gid!\n"));
2618                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2619                         goto done;
2620                 }
2621                 primary_gid = strtoul(gidstr, NULL, 10);
2622                 break;
2623         default:
2624                 DEBUG(1, ("found more than one account with the same user name ?!\n"));
2625                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2626                 goto done;
2627         }
2628
2629         filter = talloc_asprintf(mem_ctx,
2630                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%d)))",
2631                                  LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
2632         if (filter == NULL) {
2633                 ret = NT_STATUS_NO_MEMORY;
2634                 goto done;
2635         }
2636
2637         rc = smbldap_search(conn, lp_ldap_group_suffix(),
2638                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2639
2640         if (rc != LDAP_SUCCESS)
2641                 goto done;
2642
2643         talloc_autofree_ldapmsg(mem_ctx, result);
2644
2645         num_gids = 0;
2646         *pp_gids = NULL;
2647
2648         num_sids = 0;
2649         *pp_sids = NULL;
2650
2651         /* We need to add the primary group as the first gid/sid */
2652
2653         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2654                 ret = NT_STATUS_NO_MEMORY;
2655                 goto done;
2656         }
2657
2658         /* This sid will be replaced later */
2659
2660         if (!add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids)) {
2661                 ret = NT_STATUS_NO_MEMORY;
2662                 goto done;
2663         }
2664
2665         for (entry = ldap_first_entry(conn->ldap_struct, result);
2666              entry != NULL;
2667              entry = ldap_next_entry(conn->ldap_struct, entry))
2668         {
2669                 fstring str;
2670                 DOM_SID sid;
2671                 gid_t gid;
2672                 char *end;
2673
2674                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2675                                                   entry, "sambaSID",
2676                                                   str, sizeof(str)-1))
2677                         continue;
2678
2679                 if (!string_to_sid(&sid, str))
2680                         goto done;
2681
2682                 if (!smbldap_get_single_attribute(conn->ldap_struct,
2683                                                   entry, "gidNumber",
2684                                                   str, sizeof(str)-1))
2685                         continue;
2686
2687                 gid = strtoul(str, &end, 10);
2688
2689                 if (PTR_DIFF(end, str) != strlen(str))
2690                         goto done;
2691
2692                 if (gid == primary_gid) {
2693                         sid_copy(&(*pp_sids)[0], &sid);
2694                 } else {
2695                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
2696                                                 &num_gids)) {
2697                                 ret = NT_STATUS_NO_MEMORY;
2698                                 goto done;
2699                         }
2700                         if (!add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
2701                                                 &num_sids)) {
2702                                 ret = NT_STATUS_NO_MEMORY;
2703                                 goto done;
2704                         }
2705                 }
2706         }
2707
2708         if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
2709                 DEBUG(3, ("primary group of [%s] not found\n",
2710                           pdb_get_username(user)));
2711                 goto done;
2712         }
2713
2714         *p_num_groups = num_sids;
2715
2716         ret = NT_STATUS_OK;
2717
2718  done:
2719
2720         SAFE_FREE(escape_name);
2721         return ret;
2722 }
2723
2724 /**********************************************************************
2725  * Augment a posixGroup object with a sambaGroupMapping domgroup
2726  *********************************************************************/
2727
2728 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
2729                                        struct ldapsam_privates *ldap_state,
2730                                        GROUP_MAP *map)
2731 {
2732         const char *filter, *dn;
2733         LDAPMessage *msg, *entry;
2734         LDAPMod **mods;
2735         int rc;
2736
2737         filter = talloc_asprintf(mem_ctx,
2738                                  "(&(objectClass=posixGroup)(gidNumber=%u))",
2739                                  map->gid);
2740         if (filter == NULL) {
2741                 return NT_STATUS_NO_MEMORY;
2742         }
2743
2744         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2745                                    get_attr_list(mem_ctx, groupmap_attr_list),
2746                                    &msg);
2747         talloc_autofree_ldapmsg(mem_ctx, msg);
2748
2749         if ((rc != LDAP_SUCCESS) ||
2750             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2751             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2752                 return NT_STATUS_NO_SUCH_GROUP;
2753         }
2754
2755         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2756         if (dn == NULL) {
2757                 return NT_STATUS_NO_MEMORY;
2758         }
2759
2760         mods = NULL;
2761         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
2762                         "sambaGroupMapping");
2763         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
2764                          sid_string_static(&map->sid));
2765         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
2766                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2767         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2768                          map->nt_name);
2769         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2770                          map->comment);
2771         talloc_autofree_ldapmod(mem_ctx, mods);
2772
2773         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2774         if (rc != LDAP_SUCCESS) {
2775                 return NT_STATUS_ACCESS_DENIED;
2776         }
2777
2778         return NT_STATUS_OK;
2779 }
2780
2781 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
2782                                                 GROUP_MAP *map)
2783 {
2784         struct ldapsam_privates *ldap_state =
2785                 (struct ldapsam_privates *)methods->private_data;
2786         LDAPMessage *msg = NULL;
2787         LDAPMod **mods = NULL;
2788         const char *attrs[] = { NULL };
2789         char *filter;
2790
2791         char *dn;
2792         TALLOC_CTX *mem_ctx;
2793         NTSTATUS result;
2794
2795         DOM_SID sid;
2796
2797         int rc;
2798
2799         mem_ctx = talloc_new(NULL);
2800         if (mem_ctx == NULL) {
2801                 DEBUG(0, ("talloc_new failed\n"));
2802                 return NT_STATUS_NO_MEMORY;
2803         }
2804
2805         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
2806                                  sid_string_static(&map->sid));
2807         if (filter == NULL) {
2808                 result = NT_STATUS_NO_MEMORY;
2809                 goto done;
2810         }
2811
2812         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
2813                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
2814         talloc_autofree_ldapmsg(mem_ctx, msg);
2815
2816         if ((rc == LDAP_SUCCESS) &&
2817             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
2818
2819                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
2820                           "group mapping entry\n",
2821                           sid_string_static(&map->sid)));
2822                 result = NT_STATUS_GROUP_EXISTS;
2823                 goto done;
2824         }
2825
2826         switch (map->sid_name_use) {
2827
2828         case SID_NAME_DOM_GRP:
2829                 /* To map a domain group we need to have a posix group
2830                    to attach to. */
2831                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
2832                 goto done;
2833                 break;
2834
2835         case SID_NAME_ALIAS:
2836                 if (!sid_check_is_in_our_domain(&map->sid)
2837                         && !sid_check_is_in_builtin(&map->sid) )
2838                 {
2839                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
2840                                   sid_string_static(&map->sid)));
2841                         result = NT_STATUS_INVALID_PARAMETER;
2842                         goto done;
2843                 }
2844                 break;
2845
2846         default:
2847                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
2848                           sid_type_lookup(map->sid_name_use)));
2849                 result = NT_STATUS_INVALID_PARAMETER;
2850                 goto done;
2851         }
2852
2853         /* Domain groups have been mapped in a separate routine, we have to
2854          * create an alias now */
2855
2856         if (map->gid == -1) {
2857                 DEBUG(10, ("Refusing to map gid==-1\n"));
2858                 result = NT_STATUS_INVALID_PARAMETER;
2859                 goto done;
2860         }
2861
2862         if (pdb_gid_to_sid(map->gid, &sid)) {
2863                 DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
2864                           "add\n", map->gid, sid_string_static(&sid)));
2865                 result = NT_STATUS_GROUP_EXISTS;
2866                 goto done;
2867         }
2868
2869         /* Ok, enough checks done. It's still racy to go ahead now, but that's
2870          * the best we can get out of LDAP. */
2871
2872         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
2873                              sid_string_static(&map->sid),
2874                              lp_ldap_group_suffix());
2875         if (dn == NULL) {
2876                 result = NT_STATUS_NO_MEMORY;
2877                 goto done;
2878         }
2879
2880         mods = NULL;
2881
2882         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2883                          "sambaSidEntry");
2884         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
2885                          "sambaGroupMapping");
2886
2887         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
2888                          sid_string_static(&map->sid));
2889         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
2890                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
2891         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
2892                          map->nt_name);
2893         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
2894                          map->comment);
2895         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
2896                          talloc_asprintf(mem_ctx, "%u", map->gid));
2897         talloc_autofree_ldapmod(mem_ctx, mods);
2898
2899         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
2900
2901         result = (rc == LDAP_SUCCESS) ?
2902                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
2903
2904  done:
2905         TALLOC_FREE(mem_ctx);
2906         return result;
2907 }
2908
2909 /**********************************************************************
2910  * Update a group mapping entry. We're quite strict about what can be changed:
2911  * Only the description and displayname may be changed. It simply does not
2912  * make any sense to change the SID, gid or the type in a mapping.
2913  *********************************************************************/
2914
2915 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
2916                                                    GROUP_MAP *map)
2917 {
2918         struct ldapsam_privates *ldap_state =
2919                 (struct ldapsam_privates *)methods->private_data;
2920         int rc;
2921         const char *filter, *dn;
2922         LDAPMessage *msg = NULL;
2923         LDAPMessage *entry = NULL;
2924         LDAPMod **mods = NULL;
2925         TALLOC_CTX *mem_ctx;
2926         NTSTATUS result;
2927
2928         mem_ctx = talloc_new(NULL);
2929         if (mem_ctx == NULL) {
2930                 DEBUG(0, ("talloc_new failed\n"));
2931                 return NT_STATUS_NO_MEMORY;
2932         }
2933
2934         /* Make 100% sure that sid, gid and type are not changed by looking up
2935          * exactly the values we're given in LDAP. */
2936
2937         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
2938                                  "(sambaSid=%s)(gidNumber=%u)"
2939                                  "(sambaGroupType=%d))",
2940                                  LDAP_OBJ_GROUPMAP,
2941                                  sid_string_static(&map->sid), map->gid,
2942                                  map->sid_name_use);
2943         if (filter == NULL) {
2944                 result = NT_STATUS_NO_MEMORY;
2945                 goto done;
2946         }
2947
2948         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
2949                                    get_attr_list(mem_ctx, groupmap_attr_list),
2950                                    &msg);
2951         talloc_autofree_ldapmsg(mem_ctx, msg);
2952
2953         if ((rc != LDAP_SUCCESS) ||
2954             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
2955             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
2956                 result = NT_STATUS_NO_SUCH_GROUP;
2957                 goto done;
2958         }
2959
2960         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
2961
2962         if (dn == NULL) {
2963                 result = NT_STATUS_NO_MEMORY;
2964                 goto done;
2965         }
2966
2967         mods = NULL;
2968         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
2969                          map->nt_name);
2970         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
2971                          map->comment);
2972         talloc_autofree_ldapmod(mem_ctx, mods);
2973
2974         if (mods == NULL) {
2975                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
2976                           "nothing to do\n"));
2977                 result = NT_STATUS_OK;
2978                 goto done;
2979         }
2980
2981         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
2982
2983         if (rc != LDAP_SUCCESS) {
2984                 result = NT_STATUS_ACCESS_DENIED;
2985                 goto done;
2986         }
2987
2988         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
2989                   "group %lu in LDAP\n", (unsigned long)map->gid));
2990
2991         result = NT_STATUS_OK;
2992
2993  done:
2994         TALLOC_FREE(mem_ctx);
2995         return result;
2996 }
2997
2998 /**********************************************************************
2999  *********************************************************************/
3000
3001 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3002                                                    DOM_SID sid)
3003 {
3004         struct ldapsam_privates *priv =
3005                 (struct ldapsam_privates *)methods->private_data;
3006         LDAPMessage *msg, *entry;
3007         int rc;
3008         NTSTATUS result;
3009         TALLOC_CTX *mem_ctx;
3010         char *filter;
3011
3012         mem_ctx = talloc_new(NULL);
3013         if (mem_ctx == NULL) {
3014                 DEBUG(0, ("talloc_new failed\n"));
3015                 return NT_STATUS_NO_MEMORY;
3016         }
3017
3018         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3019                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3020                                  sid_string_static(&sid));
3021         if (filter == NULL) {
3022                 result = NT_STATUS_NO_MEMORY;
3023                 goto done;
3024         }
3025         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3026                                    get_attr_list(mem_ctx, groupmap_attr_list),
3027                                    &msg);
3028         talloc_autofree_ldapmsg(mem_ctx, msg);
3029
3030         if ((rc != LDAP_SUCCESS) ||
3031             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3032             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3033                 result = NT_STATUS_NO_SUCH_GROUP;
3034                 goto done;
3035         }
3036
3037         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3038                                   get_attr_list(mem_ctx,
3039                                                 groupmap_attr_list_to_delete));
3040
3041         if ((rc == LDAP_NAMING_VIOLATION) ||
3042             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3043                 const char *attrs[] = { "sambaGroupType", "description",
3044                                         "displayName", "sambaSIDList",
3045                                         NULL };
3046
3047                 /* Second try. Don't delete the sambaSID attribute, this is
3048                    for "old" entries that are tacked on a winbind
3049                    sambaIdmapEntry. */
3050
3051                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3052                                           LDAP_OBJ_GROUPMAP, attrs);
3053         }
3054
3055         if ((rc == LDAP_NAMING_VIOLATION) ||
3056             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3057                 const char *attrs[] = { "sambaGroupType", "description",
3058                                         "displayName", "sambaSIDList",
3059                                         "gidNumber", NULL };
3060
3061                 /* Third try. This is a post-3.0.21 alias (containing only
3062                  * sambaSidEntry and sambaGroupMapping classes), we also have
3063                  * to delete the gidNumber attribute, only the sambaSidEntry
3064                  * remains */
3065
3066                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3067                                           LDAP_OBJ_GROUPMAP, attrs);
3068         }
3069
3070         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3071
3072  done:
3073         TALLOC_FREE(mem_ctx);
3074         return result;
3075  }
3076
3077 /**********************************************************************
3078  *********************************************************************/
3079
3080 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3081                                     BOOL update)
3082 {
3083         struct ldapsam_privates *ldap_state =
3084                 (struct ldapsam_privates *)my_methods->private_data;
3085         fstring filter;
3086         int rc;
3087         const char **attr_list;
3088
3089         pstr_sprintf( filter, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3090         attr_list = get_attr_list( NULL, groupmap_attr_list );
3091         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3092                             LDAP_SCOPE_SUBTREE, filter,
3093                             attr_list, 0, &ldap_state->result);
3094         TALLOC_FREE(attr_list);
3095
3096         if (rc != LDAP_SUCCESS) {
3097                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3098                           ldap_err2string(rc)));
3099                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3100                           lp_ldap_group_suffix(), filter));
3101                 ldap_msgfree(ldap_state->result);
3102                 ldap_state->result = NULL;
3103                 return NT_STATUS_UNSUCCESSFUL;
3104         }
3105
3106         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3107                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3108                                      ldap_state->result)));
3109
3110         ldap_state->entry =
3111                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3112                                  ldap_state->result);
3113         ldap_state->index = 0;
3114
3115         return NT_STATUS_OK;
3116 }
3117
3118 /**********************************************************************
3119  *********************************************************************/
3120
3121 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3122 {
3123         ldapsam_endsampwent(my_methods);
3124 }
3125
3126 /**********************************************************************
3127  *********************************************************************/
3128
3129 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3130                                     GROUP_MAP *map)
3131 {
3132         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3133         struct ldapsam_privates *ldap_state =
3134                 (struct ldapsam_privates *)my_methods->private_data;
3135         BOOL bret = False;
3136
3137         while (!bret) {
3138                 if (!ldap_state->entry)
3139                         return ret;
3140
3141                 ldap_state->index++;
3142                 bret = init_group_from_ldap(ldap_state, map,
3143                                             ldap_state->entry);
3144
3145                 ldap_state->entry =
3146                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3147                                         ldap_state->entry);
3148         }
3149
3150         return NT_STATUS_OK;
3151 }
3152
3153 /**********************************************************************
3154  *********************************************************************/
3155
3156 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3157                                            const DOM_SID *domsid, enum lsa_SidType sid_name_use,
3158                                            GROUP_MAP **pp_rmap,
3159                                            size_t *p_num_entries,
3160                                            BOOL unix_only)
3161 {
3162         GROUP_MAP map;
3163         size_t entries = 0;
3164
3165         *p_num_entries = 0;
3166         *pp_rmap = NULL;
3167
3168         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3169                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3170                           "passdb\n"));
3171                 return NT_STATUS_ACCESS_DENIED;
3172         }
3173
3174         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3175                 if (sid_name_use != SID_NAME_UNKNOWN &&
3176                     sid_name_use != map.sid_name_use) {
3177                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3178                                   "not of the requested type\n", map.nt_name));
3179                         continue;
3180                 }
3181                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3182                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3183                                   "non mapped\n", map.nt_name));
3184                         continue;
3185                 }
3186
3187                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3188                 if (!(*pp_rmap)) {
3189                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3190                                  "enlarge group map!\n"));
3191                         return NT_STATUS_UNSUCCESSFUL;
3192                 }
3193
3194                 (*pp_rmap)[entries] = map;
3195
3196                 entries += 1;
3197
3198         }
3199         ldapsam_endsamgrent(methods);
3200
3201         *p_num_entries = entries;
3202
3203         return NT_STATUS_OK;
3204 }
3205
3206 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3207                                         const DOM_SID *alias,
3208                                         const DOM_SID *member,
3209                                         int modop)
3210 {
3211         struct ldapsam_privates *ldap_state =
3212                 (struct ldapsam_privates *)methods->private_data;
3213         char *dn;
3214         LDAPMessage *result = NULL;
3215         LDAPMessage *entry = NULL;
3216         int count;
3217         LDAPMod **mods = NULL;
3218         int rc;
3219         enum lsa_SidType type = SID_NAME_USE_NONE;
3220
3221         pstring filter;
3222
3223         if (sid_check_is_in_builtin(alias)) {
3224                 type = SID_NAME_ALIAS;
3225         }
3226
3227         if (sid_check_is_in_our_domain(alias)) {
3228                 type = SID_NAME_ALIAS;
3229         }
3230
3231         if (type == SID_NAME_USE_NONE) {
3232                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3233                           sid_string_static(alias)));
3234                 return NT_STATUS_NO_SUCH_ALIAS;
3235         }
3236
3237         pstr_sprintf(filter,
3238                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3239                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3240                      type);
3241
3242         if (ldapsam_search_one_group(ldap_state, filter,
3243                                      &result) != LDAP_SUCCESS)
3244                 return NT_STATUS_NO_SUCH_ALIAS;
3245
3246         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3247                                    result);
3248
3249         if (count < 1) {
3250                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3251                 ldap_msgfree(result);
3252                 return NT_STATUS_NO_SUCH_ALIAS;
3253         }
3254
3255         if (count > 1) {
3256                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3257                           "filter %s: count=%d\n", filter, count));
3258                 ldap_msgfree(result);
3259                 return NT_STATUS_NO_SUCH_ALIAS;
3260         }
3261
3262         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3263                                  result);
3264
3265         if (!entry) {
3266                 ldap_msgfree(result);
3267                 return NT_STATUS_UNSUCCESSFUL;
3268         }
3269
3270         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
3271         if (!dn) {
3272                 ldap_msgfree(result);
3273                 return NT_STATUS_UNSUCCESSFUL;
3274         }
3275
3276         smbldap_set_mod(&mods, modop,
3277                         get_attr_key2string(groupmap_attr_list,
3278                                             LDAP_ATTR_SID_LIST),
3279                         sid_string_static(member));
3280
3281         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3282
3283         ldap_mods_free(mods, True);
3284         ldap_msgfree(result);
3285         SAFE_FREE(dn);
3286
3287         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3288                 return NT_STATUS_MEMBER_IN_ALIAS;
3289         }
3290
3291         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3292                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3293         }
3294
3295         if (rc != LDAP_SUCCESS) {
3296                 return NT_STATUS_UNSUCCESSFUL;
3297         }
3298
3299         return NT_STATUS_OK;
3300 }
3301
3302 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3303                                      const DOM_SID *alias,
3304                                      const DOM_SID *member)
3305 {
3306         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3307 }
3308
3309 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3310                                      const DOM_SID *alias,
3311                                      const DOM_SID *member)
3312 {
3313         return ldapsam_modify_aliasmem(methods, alias, member,
3314                                        LDAP_MOD_DELETE);
3315 }
3316
3317 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3318                                       const DOM_SID *alias,
3319                                       DOM_SID **pp_members,
3320                                       size_t *p_num_members)
3321 {
3322         struct ldapsam_privates *ldap_state =
3323                 (struct ldapsam_privates *)methods->private_data;
3324         LDAPMessage *result = NULL;
3325         LDAPMessage *entry = NULL;
3326         int count;
3327         char **values;
3328         int i;
3329         pstring filter;
3330         size_t num_members = 0;
3331         enum lsa_SidType type = SID_NAME_USE_NONE;
3332
3333         *pp_members = NULL;
3334         *p_num_members = 0;
3335
3336         if (sid_check_is_in_builtin(alias)) {
3337                 type = SID_NAME_ALIAS;
3338         }
3339
3340         if (sid_check_is_in_our_domain(alias)) {
3341                 type = SID_NAME_ALIAS;
3342         }
3343
3344         if (type == SID_NAME_USE_NONE) {
3345                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3346                           sid_string_static(alias)));
3347                 return NT_STATUS_NO_SUCH_ALIAS;
3348         }
3349
3350         pstr_sprintf(filter,
3351                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3352                      LDAP_OBJ_GROUPMAP, sid_string_static(alias),
3353                      type);
3354
3355         if (ldapsam_search_one_group(ldap_state, filter,
3356                                      &result) != LDAP_SUCCESS)
3357                 return NT_STATUS_NO_SUCH_ALIAS;
3358
3359         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3360                                    result);
3361
3362         if (count < 1) {
3363                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3364                 ldap_msgfree(result);
3365                 return NT_STATUS_NO_SUCH_ALIAS;
3366         }
3367
3368         if (count > 1) {
3369                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3370                           "filter %s: count=%d\n", filter, count));
3371                 ldap_msgfree(result);
3372                 return NT_STATUS_NO_SUCH_ALIAS;
3373         }
3374
3375         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3376                                  result);
3377
3378         if (!entry) {
3379                 ldap_msgfree(result);
3380                 return NT_STATUS_UNSUCCESSFUL;
3381         }
3382
3383         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3384                                  entry,
3385                                  get_attr_key2string(groupmap_attr_list,
3386                                                      LDAP_ATTR_SID_LIST));
3387
3388         if (values == NULL) {
3389                 ldap_msgfree(result);
3390                 return NT_STATUS_OK;
3391         }
3392
3393         count = ldap_count_values(values);
3394
3395         for (i=0; i<count; i++) {
3396                 DOM_SID member;
3397
3398                 if (!string_to_sid(&member, values[i]))
3399                         continue;
3400
3401                 if (!add_sid_to_array(NULL, &member, pp_members, &num_members)) {
3402                         ldap_value_free(values);
3403                         ldap_msgfree(result);
3404                         return NT_STATUS_NO_MEMORY;
3405                 }
3406         }
3407
3408         *p_num_members = num_members;
3409         ldap_value_free(values);
3410         ldap_msgfree(result);
3411
3412         return NT_STATUS_OK;
3413 }
3414
3415 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3416                                           TALLOC_CTX *mem_ctx,
3417                                           const DOM_SID *domain_sid,
3418                                           const DOM_SID *members,
3419                                           size_t num_members,
3420                                           uint32 **pp_alias_rids,
3421                                           size_t *p_num_alias_rids)
3422 {
3423         struct ldapsam_privates *ldap_state =
3424                 (struct ldapsam_privates *)methods->private_data;
3425         LDAP *ldap_struct;
3426
3427         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3428
3429         LDAPMessage *result = NULL;
3430         LDAPMessage *entry = NULL;
3431         int i;
3432         int rc;
3433         char *filter;
3434         enum lsa_SidType type = SID_NAME_USE_NONE;
3435
3436         if (sid_check_is_builtin(domain_sid)) {
3437                 type = SID_NAME_ALIAS;
3438         }
3439
3440         if (sid_check_is_domain(domain_sid)) {
3441                 type = SID_NAME_ALIAS;
3442         }
3443
3444         if (type == SID_NAME_USE_NONE) {
3445                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3446                           sid_string_static(domain_sid)));
3447                 return NT_STATUS_UNSUCCESSFUL;
3448         }
3449
3450         filter = talloc_asprintf(mem_ctx,
3451                                  "(&(|(objectclass=%s)(sambaGroupType=%d))(|",
3452                                  LDAP_OBJ_GROUPMAP, type);
3453
3454         for (i=0; i<num_members; i++)
3455                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3456                                          filter,
3457                                          sid_string_static(&members[i]));
3458
3459         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3460
3461         if (filter == NULL) {
3462                 return NT_STATUS_NO_MEMORY;
3463         }
3464
3465         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
3466                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3467
3468         if (rc != LDAP_SUCCESS)
3469                 return NT_STATUS_UNSUCCESSFUL;
3470
3471         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3472
3473         for (entry = ldap_first_entry(ldap_struct, result);
3474              entry != NULL;
3475              entry = ldap_next_entry(ldap_struct, entry))
3476         {
3477                 fstring sid_str;
3478                 DOM_SID sid;
3479                 uint32 rid;
3480
3481                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3482                                                   LDAP_ATTRIBUTE_SID,
3483                                                   sid_str,
3484                                                   sizeof(sid_str)-1))
3485                         continue;
3486
3487                 if (!string_to_sid(&sid, sid_str))
3488                         continue;
3489
3490                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3491                         continue;
3492
3493                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3494                                         p_num_alias_rids)) {
3495                         ldap_msgfree(result);
3496                         return NT_STATUS_NO_MEMORY;
3497                 }
3498         }
3499
3500         ldap_msgfree(result);
3501         return NT_STATUS_OK;
3502 }
3503
3504 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3505                                                    int policy_index,
3506                                                    uint32 value)
3507 {
3508         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3509         int rc;
3510         LDAPMod **mods = NULL;
3511         fstring value_string;
3512         const char *policy_attr = NULL;
3513
3514         struct ldapsam_privates *ldap_state =
3515                 (struct ldapsam_privates *)methods->private_data;
3516
3517         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3518
3519         if (!ldap_state->domain_dn) {
3520                 return NT_STATUS_INVALID_PARAMETER;
3521         }
3522
3523         policy_attr = get_account_policy_attr(policy_index);
3524         if (policy_attr == NULL) {
3525                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3526                          "policy\n"));
3527                 return ntstatus;
3528         }
3529
3530         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3531
3532         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3533
3534         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3535                             mods);
3536
3537         ldap_mods_free(mods, True);
3538
3539         if (rc != LDAP_SUCCESS) {
3540                 return ntstatus;
3541         }
3542
3543         if (!cache_account_policy_set(policy_index, value)) {
3544                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3545                          "update local tdb cache\n"));
3546                 return ntstatus;
3547         }
3548
3549         return NT_STATUS_OK;
3550 }
3551
3552 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3553                                            int policy_index, uint32 value)
3554 {
3555         return ldapsam_set_account_policy_in_ldap(methods, policy_index,
3556                                                   value);
3557 }
3558
3559 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3560                                                      int policy_index,
3561                                                      uint32 *value)
3562 {
3563         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3564         LDAPMessage *result = NULL;
3565         LDAPMessage *entry = NULL;
3566         int count;
3567         int rc;
3568         char **vals = NULL;
3569         const char *policy_attr = NULL;
3570
3571         struct ldapsam_privates *ldap_state =
3572                 (struct ldapsam_privates *)methods->private_data;
3573
3574         const char *attrs[2];
3575
3576         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3577
3578         if (!ldap_state->domain_dn) {
3579                 return NT_STATUS_INVALID_PARAMETER;
3580         }
3581
3582         policy_attr = get_account_policy_attr(policy_index);
3583         if (!policy_attr) {
3584                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3585                          "policy index: %d\n", policy_index));
3586                 return ntstatus;
3587         }
3588
3589         attrs[0] = policy_attr;
3590         attrs[1] = NULL;
3591
3592         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3593                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0,
3594                             &result);
3595
3596         if (rc != LDAP_SUCCESS) {
3597                 return ntstatus;
3598         }
3599
3600         count = ldap_count_entries(priv2ld(ldap_state), result);
3601         if (count < 1) {
3602                 goto out;
3603         }
3604
3605         entry = ldap_first_entry(priv2ld(ldap_state), result);
3606         if (entry == NULL) {
3607                 goto out;
3608         }
3609
3610         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
3611         if (vals == NULL) {
3612                 goto out;
3613         }
3614
3615         *value = (uint32)atol(vals[0]);
3616
3617         ntstatus = NT_STATUS_OK;
3618
3619 out:
3620         if (vals)
3621                 ldap_value_free(vals);
3622         ldap_msgfree(result);
3623
3624         return ntstatus;
3625 }
3626
3627 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
3628
3629    - if user hasn't decided to use account policies inside LDAP just reuse the
3630      old tdb values
3631
3632    - if there is a valid cache entry, return that
3633    - if there is an LDAP entry, update cache and return
3634    - otherwise set to default, update cache and return
3635
3636    Guenther
3637 */
3638 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
3639                                            int policy_index, uint32 *value)
3640 {
3641         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3642
3643         if (cache_account_policy_get(policy_index, value)) {
3644                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
3645                           "cache\n"));
3646                 return NT_STATUS_OK;
3647         }
3648
3649         ntstatus = ldapsam_get_account_policy_from_ldap(methods, policy_index,
3650                                                         value);
3651         if (NT_STATUS_IS_OK(ntstatus)) {
3652                 goto update_cache;
3653         }
3654
3655         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
3656                   "ldap\n"));
3657
3658 #if 0
3659         /* should we automagically migrate old tdb value here ? */
3660         if (account_policy_get(policy_index, value))
3661                 goto update_ldap;
3662
3663         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
3664                   "default\n", policy_index));
3665 #endif
3666
3667         if (!account_policy_get_default(policy_index, value)) {
3668                 return ntstatus;
3669         }
3670
3671 /* update_ldap: */
3672
3673         ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
3674         if (!NT_STATUS_IS_OK(ntstatus)) {
3675                 return ntstatus;
3676         }
3677
3678  update_cache:
3679
3680         if (!cache_account_policy_set(policy_index, *value)) {
3681                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
3682                          "tdb as a cache\n"));
3683                 return NT_STATUS_UNSUCCESSFUL;
3684         }
3685
3686         return NT_STATUS_OK;
3687 }
3688
3689 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
3690                                     const DOM_SID *domain_sid,
3691                                     int num_rids,
3692                                     uint32 *rids,
3693                                     const char **names,
3694                                     enum lsa_SidType *attrs)
3695 {
3696         struct ldapsam_privates *ldap_state =
3697                 (struct ldapsam_privates *)methods->private_data;
3698         LDAPMessage *msg = NULL;
3699         LDAPMessage *entry;
3700         char *allsids = NULL;
3701         int i, rc, num_mapped;
3702         NTSTATUS result = NT_STATUS_NO_MEMORY;
3703         TALLOC_CTX *mem_ctx;
3704         LDAP *ld;
3705         BOOL is_builtin;
3706
3707         mem_ctx = talloc_new(NULL);
3708         if (mem_ctx == NULL) {
3709                 DEBUG(0, ("talloc_new failed\n"));
3710                 goto done;
3711         }
3712
3713         if (!sid_check_is_builtin(domain_sid) &&
3714             !sid_check_is_domain(domain_sid)) {
3715                 result = NT_STATUS_INVALID_PARAMETER;
3716                 goto done;
3717         }
3718
3719         for (i=0; i<num_rids; i++)
3720                 attrs[i] = SID_NAME_UNKNOWN;
3721
3722         allsids = talloc_strdup(mem_ctx, "");
3723         if (allsids == NULL) {
3724                 goto done;
3725         }
3726
3727         for (i=0; i<num_rids; i++) {
3728                 DOM_SID sid;
3729                 sid_compose(&sid, domain_sid, rids[i]);
3730                 allsids = talloc_asprintf_append(allsids, "(sambaSid=%s)",
3731                                                  sid_string_static(&sid));
3732                 if (allsids == NULL) {
3733                         goto done;
3734                 }
3735         }
3736
3737         /* First look for users */
3738
3739         {
3740                 char *filter;
3741                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
3742
3743                 filter = talloc_asprintf(
3744                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
3745                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
3746
3747                 if (filter == NULL) {
3748                         goto done;
3749                 }
3750
3751                 rc = smbldap_search(ldap_state->smbldap_state,
3752                                     lp_ldap_user_suffix(),
3753                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3754                                     &msg);
3755                 talloc_autofree_ldapmsg(mem_ctx, msg);
3756         }
3757
3758         if (rc != LDAP_SUCCESS)
3759                 goto done;
3760
3761         ld = ldap_state->smbldap_state->ldap_struct;
3762         num_mapped = 0;
3763
3764         for (entry = ldap_first_entry(ld, msg);
3765              entry != NULL;
3766              entry = ldap_next_entry(ld, entry)) {
3767                 uint32 rid;
3768                 int rid_index;
3769                 const char *name;
3770
3771                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3772                                                     &rid)) {
3773                         DEBUG(2, ("Could not find sid from ldap entry\n"));
3774                         continue;
3775                 }
3776
3777                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
3778                                                        names);
3779                 if (name == NULL) {
3780                         DEBUG(2, ("Could not retrieve uid attribute\n"));
3781                         continue;
3782                 }
3783
3784                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3785                         if (rid == rids[rid_index])
3786                                 break;
3787                 }
3788
3789                 if (rid_index == num_rids) {
3790                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3791                         continue;
3792                 }
3793
3794                 attrs[rid_index] = SID_NAME_USER;
3795                 names[rid_index] = name;
3796                 num_mapped += 1;
3797         }
3798
3799         if (num_mapped == num_rids) {
3800                 /* No need to look for groups anymore -- we're done */
3801                 result = NT_STATUS_OK;
3802                 goto done;
3803         }
3804
3805         /* Same game for groups */
3806
3807         {
3808                 char *filter;
3809                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
3810                                              "sambaGroupType", NULL };
3811
3812                 filter = talloc_asprintf(
3813                         mem_ctx, "(&(objectClass=%s)(|%s))",
3814                         LDAP_OBJ_GROUPMAP, allsids);
3815                 if (filter == NULL) {
3816                         goto done;
3817                 }
3818
3819                 rc = smbldap_search(ldap_state->smbldap_state,
3820                                     lp_ldap_group_suffix(),
3821                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
3822                                     &msg);
3823                 talloc_autofree_ldapmsg(mem_ctx, msg);
3824         }
3825
3826         if (rc != LDAP_SUCCESS)
3827                 goto done;
3828
3829         /* ldap_struct might have changed due to a reconnect */
3830
3831         ld = ldap_state->smbldap_state->ldap_struct;
3832
3833         /* For consistency checks, we already checked we're only domain or builtin */
3834
3835         is_builtin = sid_check_is_builtin(domain_sid);
3836
3837         for (entry = ldap_first_entry(ld, msg);
3838              entry != NULL;
3839              entry = ldap_next_entry(ld, entry))
3840         {
3841                 uint32 rid;
3842                 int rid_index;
3843                 const char *attr;
3844                 enum lsa_SidType type;
3845                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
3846
3847                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
3848                                                        mem_ctx);
3849                 if (attr == NULL) {
3850                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
3851                                   dn));
3852                         continue;
3853                 }
3854
3855                 type = (enum lsa_SidType)atol(attr);
3856
3857                 /* Consistency checks */
3858                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
3859                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
3860                                      (type != SID_NAME_DOM_GRP)))) {
3861                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
3862                 }
3863
3864                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
3865                                                     &rid)) {
3866                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
3867                         continue;
3868                 }
3869
3870                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
3871
3872                 if (attr == NULL) {
3873                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
3874                                    dn));
3875                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
3876                 }
3877
3878                 if (attr == NULL) {
3879                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
3880                                   dn));
3881                         continue;
3882                 }
3883
3884                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
3885                         if (rid == rids[rid_index])
3886                                 break;
3887                 }
3888
3889                 if (rid_index == num_rids) {
3890                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
3891                         continue;
3892                 }
3893
3894                 attrs[rid_index] = type;
3895                 names[rid_index] = attr;
3896                 num_mapped += 1;
3897         }
3898
3899         result = NT_STATUS_NONE_MAPPED;
3900
3901         if (num_mapped > 0)
3902                 result = (num_mapped == num_rids) ?
3903                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
3904  done:
3905         TALLOC_FREE(mem_ctx);
3906         return result;
3907 }
3908
3909 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
3910 {
3911         char *filter = NULL;
3912         char *escaped = NULL;
3913         char *result = NULL;
3914
3915         asprintf(&filter, "(&%s(objectclass=sambaSamAccount))",
3916                  "(uid=%u)");
3917         if (filter == NULL) goto done;
3918
3919         escaped = escape_ldap_string_alloc(username);
3920         if (escaped == NULL) goto done;
3921
3922         result = talloc_string_sub(mem_ctx, filter, "%u", username);
3923
3924  done:
3925         SAFE_FREE(filter);
3926         SAFE_FREE(escaped);
3927
3928         return result;
3929 }
3930
3931 const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
3932 {
3933         int i, num = 0;
3934         va_list ap;
3935         const char **result;
3936
3937         va_start(ap, mem_ctx);
3938         while (va_arg(ap, const char *) != NULL)
3939                 num += 1;
3940         va_end(ap);
3941
3942         if ((result = TALLOC_ARRAY(mem_ctx, const char *, num+1)) == NULL) {
3943                 return NULL;
3944         }
3945
3946         va_start(ap, mem_ctx);
3947         for (i=0; i<num; i++) {
3948                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
3949                 if (result[i] == NULL) {
3950                         talloc_free(result);
3951                         return NULL;
3952                 }
3953         }
3954         va_end(ap);
3955
3956         result[num] = NULL;
3957         return result;
3958 }
3959
3960 struct ldap_search_state {
3961         struct smbldap_state *connection;
3962
3963         uint32 acct_flags;
3964         uint16 group_type;
3965
3966         const char *base;
3967         int scope;
3968         const char *filter;
3969         const char **attrs;
3970         int attrsonly;
3971         void *pagedresults_cookie;
3972
3973         LDAPMessage *entries, *current_entry;
3974         BOOL (*ldap2displayentry)(struct ldap_search_state *state,
3975                                   TALLOC_CTX *mem_ctx,
3976                                   LDAP *ld, LDAPMessage *entry,
3977                                   struct samr_displayentry *result);
3978 };
3979
3980 static BOOL ldapsam_search_firstpage(struct pdb_search *search)
3981 {
3982         struct ldap_search_state *state =
3983                 (struct ldap_search_state *)search->private_data;
3984         LDAP *ld;
3985         int rc = LDAP_OPERATIONS_ERROR;
3986
3987         state->entries = NULL;
3988
3989         if (state->connection->paged_results) {
3990                 rc = smbldap_search_paged(state->connection, state->base,
3991                                           state->scope, state->filter,
3992                                           state->attrs, state->attrsonly,
3993                                           lp_ldap_page_size(), &state->entries,
3994                                           &state->pagedresults_cookie);
3995         }
3996
3997         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
3998
3999                 if (state->entries != NULL) {
4000                         /* Left over from unsuccessful paged attempt */
4001                         ldap_msgfree(state->entries);
4002                         state->entries = NULL;
4003                 }
4004
4005                 rc = smbldap_search(state->connection, state->base,
4006                                     state->scope, state->filter, state->attrs,
4007                                     state->attrsonly, &state->entries);
4008
4009                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4010                         return False;
4011
4012                 /* Ok, the server was lying. It told us it could do paged
4013                  * searches when it could not. */
4014                 state->connection->paged_results = False;
4015         }
4016
4017         ld = state->connection->ldap_struct;
4018         if ( ld == NULL) {
4019                 DEBUG(5, ("Don't have an LDAP connection right after a "
4020                           "search\n"));
4021                 return False;
4022         }
4023         state->current_entry = ldap_first_entry(ld, state->entries);
4024
4025         if (state->current_entry == NULL) {
4026                 ldap_msgfree(state->entries);
4027                 state->entries = NULL;
4028         }
4029
4030         return True;
4031 }
4032
4033 static BOOL ldapsam_search_nextpage(struct pdb_search *search)
4034 {
4035         struct ldap_search_state *state =
4036                 (struct ldap_search_state *)search->private_data;
4037         int rc;
4038
4039         if (!state->connection->paged_results) {
4040                 /* There is no next page when there are no paged results */
4041                 return False;
4042         }
4043
4044         rc = smbldap_search_paged(state->connection, state->base,
4045                                   state->scope, state->filter, state->attrs,
4046                                   state->attrsonly, lp_ldap_page_size(),
4047                                   &state->entries,
4048                                   &state->pagedresults_cookie);
4049
4050         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4051                 return False;
4052
4053         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4054
4055         if (state->current_entry == NULL) {
4056                 ldap_msgfree(state->entries);
4057                 state->entries = NULL;
4058         }
4059
4060         return True;
4061 }
4062
4063 static BOOL ldapsam_search_next_entry(struct pdb_search *search,
4064                                       struct samr_displayentry *entry)
4065 {
4066         struct ldap_search_state *state =
4067                 (struct ldap_search_state *)search->private_data;
4068         BOOL result;
4069
4070  retry:
4071         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4072                 return False;
4073
4074         if ((state->entries == NULL) &&
4075             !ldapsam_search_nextpage(search))
4076                     return False;
4077
4078         result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
4079                                           state->current_entry, entry);
4080
4081         if (!result) {
4082                 char *dn;
4083                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4084                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4085                 if (dn != NULL) ldap_memfree(dn);
4086         }
4087
4088         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4089
4090         if (state->current_entry == NULL) {
4091                 ldap_msgfree(state->entries);
4092                 state->entries = NULL;
4093         }
4094
4095         if (!result) goto retry;
4096
4097         return True;
4098 }
4099
4100 static void ldapsam_search_end(struct pdb_search *search)
4101 {
4102         struct ldap_search_state *state =
4103                 (struct ldap_search_state *)search->private_data;
4104         int rc;
4105
4106         if (state->pagedresults_cookie == NULL)
4107                 return;
4108
4109         if (state->entries != NULL)
4110                 ldap_msgfree(state->entries);
4111
4112         state->entries = NULL;
4113         state->current_entry = NULL;
4114
4115         if (!state->connection->paged_results)
4116                 return;
4117
4118         /* Tell the LDAP server we're not interested in the rest anymore. */
4119
4120         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4121                                   state->filter, state->attrs,
4122                                   state->attrsonly, 0, &state->entries,
4123                                   &state->pagedresults_cookie);
4124
4125         if (rc != LDAP_SUCCESS)
4126                 DEBUG(5, ("Could not end search properly\n"));
4127
4128         return;
4129 }
4130
4131 static BOOL ldapuser2displayentry(struct ldap_search_state *state,
4132                                   TALLOC_CTX *mem_ctx,
4133                                   LDAP *ld, LDAPMessage *entry,
4134                                   struct samr_displayentry *result)
4135 {
4136         char **vals;
4137         DOM_SID sid;
4138         uint32 acct_flags;
4139
4140         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4141         if ((vals == NULL) || (vals[0] == NULL)) {
4142                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4143                 return False;
4144         }
4145         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4146         ldap_value_free(vals);
4147
4148         if ((state->acct_flags != 0) &&
4149             ((state->acct_flags & acct_flags) == 0))
4150                 return False;
4151
4152         result->acct_flags = acct_flags;
4153         result->account_name = "";
4154         result->fullname = "";
4155         result->description = "";
4156
4157         vals = ldap_get_values(ld, entry, "uid");
4158         if ((vals == NULL) || (vals[0] == NULL)) {
4159                 DEBUG(5, ("\"uid\" not found\n"));
4160                 return False;
4161         }
4162         pull_utf8_talloc(mem_ctx,
4163                          CONST_DISCARD(char **, &result->account_name),
4164                          vals[0]);
4165         ldap_value_free(vals);
4166
4167         vals = ldap_get_values(ld, entry, "displayName");
4168         if ((vals == NULL) || (vals[0] == NULL))
4169                 DEBUG(8, ("\"displayName\" not found\n"));
4170         else
4171                 pull_utf8_talloc(mem_ctx,
4172                                  CONST_DISCARD(char **, &result->fullname),
4173                                  vals[0]);
4174         ldap_value_free(vals);
4175
4176         vals = ldap_get_values(ld, entry, "description");
4177         if ((vals == NULL) || (vals[0] == NULL))
4178                 DEBUG(8, ("\"description\" not found\n"));
4179         else
4180                 pull_utf8_talloc(mem_ctx,
4181                                  CONST_DISCARD(char **, &result->description),
4182                                  vals[0]);
4183         ldap_value_free(vals);
4184
4185         if ((result->account_name == NULL) ||
4186             (result->fullname == NULL) ||
4187             (result->description == NULL)) {
4188                 DEBUG(0, ("talloc failed\n"));
4189                 return False;
4190         }
4191
4192         vals = ldap_get_values(ld, entry, "sambaSid");
4193         if ((vals == NULL) || (vals[0] == NULL)) {
4194                 DEBUG(0, ("\"objectSid\" not found\n"));
4195                 return False;
4196         }
4197
4198         if (!string_to_sid(&sid, vals[0])) {
4199                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4200                 ldap_value_free(vals);
4201                 return False;
4202         }
4203         ldap_value_free(vals);
4204
4205         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4206                 DEBUG(0, ("sid %s does not belong to our domain\n",
4207                           sid_string_static(&sid)));
4208                 return False;
4209         }
4210
4211         return True;
4212 }
4213
4214
4215 static BOOL ldapsam_search_users(struct pdb_methods *methods,
4216                                  struct pdb_search *search,
4217                                  uint32 acct_flags)
4218 {
4219         struct ldapsam_privates *ldap_state =
4220                 (struct ldapsam_privates *)methods->private_data;
4221         struct ldap_search_state *state;
4222
4223         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4224         if (state == NULL) {
4225                 DEBUG(0, ("talloc failed\n"));
4226                 return False;
4227         }
4228
4229         state->connection = ldap_state->smbldap_state;
4230
4231         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4232                 state->base = lp_ldap_user_suffix();
4233         else if ((acct_flags != 0) &&
4234                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4235                 state->base = lp_ldap_machine_suffix();
4236         else
4237                 state->base = lp_ldap_suffix();
4238
4239         state->acct_flags = acct_flags;
4240         state->base = talloc_strdup(search->mem_ctx, state->base);
4241         state->scope = LDAP_SCOPE_SUBTREE;
4242         state->filter = get_ldap_filter(search->mem_ctx, "*");
4243         state->attrs = talloc_attrs(search->mem_ctx, "uid", "sambaSid",
4244                                     "displayName", "description",
4245                                     "sambaAcctFlags", NULL);
4246         state->attrsonly = 0;
4247         state->pagedresults_cookie = NULL;
4248         state->entries = NULL;
4249         state->ldap2displayentry = ldapuser2displayentry;
4250
4251         if ((state->filter == NULL) || (state->attrs == NULL)) {
4252                 DEBUG(0, ("talloc failed\n"));
4253                 return False;
4254         }
4255
4256         search->private_data = state;
4257         search->next_entry = ldapsam_search_next_entry;
4258         search->search_end = ldapsam_search_end;
4259
4260         return ldapsam_search_firstpage(search);
4261 }
4262
4263 static BOOL ldapgroup2displayentry(struct ldap_search_state *state,
4264                                    TALLOC_CTX *mem_ctx,
4265                                    LDAP *ld, LDAPMessage *entry,
4266                                    struct samr_displayentry *result)
4267 {
4268         char **vals;
4269         DOM_SID sid;
4270         uint16 group_type;
4271
4272         result->account_name = "";
4273         result->fullname = "";
4274         result->description = "";
4275
4276
4277         vals = ldap_get_values(ld, entry, "sambaGroupType");
4278         if ((vals == NULL) || (vals[0] == NULL)) {
4279                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4280                 if (vals != NULL) {
4281                         ldap_value_free(vals);
4282                 }
4283                 return False;
4284         }
4285
4286         group_type = atoi(vals[0]);
4287
4288         if ((state->group_type != 0) &&
4289             ((state->group_type != group_type))) {
4290                 ldap_value_free(vals);
4291                 return False;
4292         }
4293
4294         ldap_value_free(vals);
4295
4296         /* display name is the NT group name */
4297
4298         vals = ldap_get_values(ld, entry, "displayName");
4299         if ((vals == NULL) || (vals[0] == NULL)) {
4300                 DEBUG(8, ("\"displayName\" not found\n"));
4301
4302                 /* fallback to the 'cn' attribute */
4303                 vals = ldap_get_values(ld, entry, "cn");
4304                 if ((vals == NULL) || (vals[0] == NULL)) {
4305                         DEBUG(5, ("\"cn\" not found\n"));
4306                         return False;
4307                 }
4308                 pull_utf8_talloc(mem_ctx,
4309                                  CONST_DISCARD(char **, &result->account_name),
4310                                  vals[0]);
4311         }
4312         else {
4313                 pull_utf8_talloc(mem_ctx,
4314                                  CONST_DISCARD(char **, &result->account_name),
4315                                  vals[0]);
4316         }
4317
4318         ldap_value_free(vals);
4319
4320         vals = ldap_get_values(ld, entry, "description");
4321         if ((vals == NULL) || (vals[0] == NULL))
4322                 DEBUG(8, ("\"description\" not found\n"));
4323         else
4324                 pull_utf8_talloc(mem_ctx,
4325                                  CONST_DISCARD(char **, &result->description),
4326                                  vals[0]);
4327         ldap_value_free(vals);
4328
4329         if ((result->account_name == NULL) ||
4330             (result->fullname == NULL) ||
4331             (result->description == NULL)) {
4332                 DEBUG(0, ("talloc failed\n"));
4333                 return False;
4334         }
4335
4336         vals = ldap_get_values(ld, entry, "sambaSid");
4337         if ((vals == NULL) || (vals[0] == NULL)) {
4338                 DEBUG(0, ("\"objectSid\" not found\n"));
4339                 if (vals != NULL) {
4340                         ldap_value_free(vals);
4341                 }
4342                 return False;
4343         }
4344
4345         if (!string_to_sid(&sid, vals[0])) {
4346                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4347                 return False;
4348         }
4349
4350         ldap_value_free(vals);
4351
4352         switch (group_type) {
4353                 case SID_NAME_DOM_GRP:
4354                 case SID_NAME_ALIAS:
4355
4356                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4357                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4358                         {
4359                                 DEBUG(0, ("%s is not in our domain\n",
4360                                           sid_string_static(&sid)));
4361                                 return False;
4362                         }
4363                         break;
4364
4365                 default:
4366                         DEBUG(0,("unkown group type: %d\n", group_type));
4367                         return False;
4368         }
4369
4370         return True;
4371 }
4372
4373 static BOOL ldapsam_search_grouptype(struct pdb_methods *methods,
4374                                      struct pdb_search *search,
4375                                      const DOM_SID *sid,
4376                                      enum lsa_SidType type)
4377 {
4378         struct ldapsam_privates *ldap_state =
4379                 (struct ldapsam_privates *)methods->private_data;
4380         struct ldap_search_state *state;
4381
4382         state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
4383         if (state == NULL) {
4384                 DEBUG(0, ("talloc failed\n"));
4385                 return False;
4386         }
4387
4388         state->connection = ldap_state->smbldap_state;
4389
4390         state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
4391         state->connection = ldap_state->smbldap_state;
4392         state->scope = LDAP_SCOPE_SUBTREE;
4393         state->filter = talloc_asprintf(search->mem_ctx,
4394                                         "(&(objectclass=sambaGroupMapping)"
4395                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4396                                         type, sid_string_static(sid));
4397         state->attrs = talloc_attrs(search->mem_ctx, "cn", "sambaSid",
4398                                     "displayName", "description",
4399                                     "sambaGroupType", NULL);
4400         state->attrsonly = 0;
4401         state->pagedresults_cookie = NULL;
4402         state->entries = NULL;
4403         state->group_type = type;
4404         state->ldap2displayentry = ldapgroup2displayentry;
4405
4406         if ((state->filter == NULL) || (state->attrs == NULL)) {
4407                 DEBUG(0, ("talloc failed\n"));
4408                 return False;
4409         }
4410
4411         search->private_data = state;
4412         search->next_entry = ldapsam_search_next_entry;
4413         search->search_end = ldapsam_search_end;
4414
4415         return ldapsam_search_firstpage(search);
4416 }
4417
4418 static BOOL ldapsam_search_groups(struct pdb_methods *methods,
4419                                   struct pdb_search *search)
4420 {
4421         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4422 }
4423
4424 static BOOL ldapsam_search_aliases(struct pdb_methods *methods,
4425                                    struct pdb_search *search,
4426                                    const DOM_SID *sid)
4427 {
4428         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4429 }
4430
4431 static BOOL ldapsam_rid_algorithm(struct pdb_methods *methods)
4432 {
4433         return False;
4434 }
4435
4436 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4437                                     uint32 *rid)
4438 {
4439         struct smbldap_state *smbldap_state = priv->smbldap_state;
4440
4441         LDAPMessage *result = NULL;
4442         LDAPMessage *entry = NULL;
4443         LDAPMod **mods = NULL;
4444         NTSTATUS status;
4445         char *value;
4446         int rc;
4447         uint32 nextRid = 0;
4448         const char *dn;
4449
4450         TALLOC_CTX *mem_ctx;
4451
4452         mem_ctx = talloc_new(NULL);
4453         if (mem_ctx == NULL) {
4454                 DEBUG(0, ("talloc_new failed\n"));
4455                 return NT_STATUS_NO_MEMORY;
4456         }
4457
4458         status = smbldap_search_domain_info(smbldap_state, &result,
4459                                             get_global_sam_name(), False);
4460         if (!NT_STATUS_IS_OK(status)) {
4461                 DEBUG(3, ("Could not get domain info: %s\n",
4462                           nt_errstr(status)));
4463                 goto done;
4464         }
4465
4466         talloc_autofree_ldapmsg(mem_ctx, result);
4467
4468         entry = ldap_first_entry(priv2ld(priv), result);
4469         if (entry == NULL) {
4470                 DEBUG(0, ("Could not get domain info entry\n"));
4471                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4472                 goto done;
4473         }
4474
4475         /* Find the largest of the three attributes "sambaNextRid",
4476            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4477            concept of differentiating between user and group rids, and will
4478            use only "sambaNextRid" in the future. But for compatibility
4479            reasons I look if others have chosen different strategies -- VL */
4480
4481         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4482                                                 "sambaNextRid", mem_ctx);
4483         if (value != NULL) {
4484                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4485                 nextRid = MAX(nextRid, tmp);
4486         }
4487
4488         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4489                                                 "sambaNextUserRid", mem_ctx);
4490         if (value != NULL) {
4491                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4492                 nextRid = MAX(nextRid, tmp);
4493         }
4494
4495         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4496                                                 "sambaNextGroupRid", mem_ctx);
4497         if (value != NULL) {
4498                 uint32 tmp = (uint32)strtoul(value, NULL, 10);
4499                 nextRid = MAX(nextRid, tmp);
4500         }
4501
4502         if (nextRid == 0) {
4503                 nextRid = BASE_RID-1;
4504         }
4505
4506         nextRid += 1;
4507
4508         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4509                          talloc_asprintf(mem_ctx, "%d", nextRid));
4510         talloc_autofree_ldapmod(mem_ctx, mods);
4511
4512         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4513                 status = NT_STATUS_NO_MEMORY;
4514                 goto done;
4515         }
4516
4517         rc = smbldap_modify(smbldap_state, dn, mods);
4518
4519         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4520          * please retry" */
4521
4522         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4523
4524  done:
4525         if (NT_STATUS_IS_OK(status)) {
4526                 *rid = nextRid;
4527         }
4528
4529         TALLOC_FREE(mem_ctx);
4530         return status;
4531 }
4532
4533 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32 *rid)
4534 {
4535         int i;
4536
4537         for (i=0; i<10; i++) {
4538                 NTSTATUS result = ldapsam_get_new_rid(
4539                         (struct ldapsam_privates *)methods->private_data, rid);
4540                 if (NT_STATUS_IS_OK(result)) {
4541                         return result;
4542                 }
4543
4544                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4545                         return result;
4546                 }
4547
4548                 /* The ldap update failed (maybe a race condition), retry */
4549         }
4550
4551         /* Tried 10 times, fail. */
4552         return NT_STATUS_ACCESS_DENIED;
4553 }
4554
4555 static BOOL ldapsam_new_rid(struct pdb_methods *methods, uint32 *rid)
4556 {
4557         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4558         return NT_STATUS_IS_OK(result) ? True : False;
4559 }
4560
4561 static BOOL ldapsam_sid_to_id(struct pdb_methods *methods,
4562                               const DOM_SID *sid,
4563                               union unid_t *id, enum lsa_SidType *type)
4564 {
4565         struct ldapsam_privates *priv =
4566                 (struct ldapsam_privates *)methods->private_data;
4567         char *filter;
4568         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
4569                                 NULL };
4570         LDAPMessage *result = NULL;
4571         LDAPMessage *entry = NULL;
4572         BOOL ret = False;
4573         char *value;
4574         int rc;
4575
4576         TALLOC_CTX *mem_ctx;
4577
4578         mem_ctx = talloc_new(NULL);
4579         if (mem_ctx == NULL) {
4580                 DEBUG(0, ("talloc_new failed\n"));
4581                 return False;
4582         }
4583
4584         filter = talloc_asprintf(mem_ctx,
4585                                  "(&(sambaSid=%s)"
4586                                  "(|(objectClass=%s)(objectClass=%s)))",
4587                                  sid_string_static(sid),
4588                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
4589         if (filter == NULL) {
4590                 DEBUG(5, ("talloc_asprintf failed\n"));
4591                 goto done;
4592         }
4593
4594         rc = smbldap_search_suffix(priv->smbldap_state, filter,
4595                                    attrs, &result);
4596         if (rc != LDAP_SUCCESS) {
4597                 goto done;
4598         }
4599         talloc_autofree_ldapmsg(mem_ctx, result);
4600
4601         if (ldap_count_entries(priv2ld(priv), result) != 1) {
4602                 DEBUG(10, ("Got %d entries, expected one\n",
4603                            ldap_count_entries(priv2ld(priv), result)));
4604                 goto done;
4605         }
4606
4607         entry = ldap_first_entry(priv2ld(priv), result);
4608
4609         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4610                                                 "sambaGroupType", mem_ctx);
4611
4612         if (value != NULL) {
4613                 const char *gid_str;
4614                 /* It's a group */
4615
4616                 gid_str = smbldap_talloc_single_attribute(
4617                         priv2ld(priv), entry, "gidNumber", mem_ctx);
4618                 if (gid_str == NULL) {
4619                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
4620                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
4621                                                     entry)));
4622                         goto done;
4623                 }
4624
4625                 id->gid = strtoul(gid_str, NULL, 10);
4626                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
4627                 ret = True;
4628                 goto done;
4629         }
4630
4631         /* It must be a user */
4632
4633         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4634                                                 "uidNumber", mem_ctx);
4635         if (value == NULL) {
4636                 DEBUG(1, ("Could not find uidNumber in %s\n",
4637                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
4638                 goto done;
4639         }
4640
4641         id->uid = strtoul(value, NULL, 10);
4642         *type = SID_NAME_USER;
4643
4644         ret = True;
4645  done:
4646         TALLOC_FREE(mem_ctx);
4647         return ret;
4648 }
4649
4650 /*
4651  * The following functions is called only if
4652  * ldapsam:trusted and ldapsam:editposix are
4653  * set to true
4654  */
4655
4656 /*
4657  * ldapsam_create_user creates a new
4658  * posixAccount and sambaSamAccount object
4659  * in the ldap users subtree
4660  *
4661  * The uid is allocated by winbindd.
4662  */
4663
4664 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
4665                                     TALLOC_CTX *tmp_ctx, const char *name,
4666                                     uint32 acb_info, uint32 *rid)
4667 {
4668         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4669         LDAPMessage *entry = NULL;
4670         LDAPMessage *result = NULL;
4671         uint32 num_result;
4672         BOOL is_machine = False;
4673         BOOL add_posix = False;
4674         LDAPMod **mods = NULL;
4675         struct samu *user;
4676         char *filter;
4677         char *username;
4678         char *homedir;
4679         char *gidstr;
4680         char *uidstr;
4681         char *shell;
4682         const char *dn = NULL;
4683         DOM_SID group_sid;
4684         DOM_SID user_sid;
4685         gid_t gid = -1;
4686         uid_t uid = -1;
4687         NTSTATUS ret;
4688         int rc;
4689
4690         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
4691               acb_info & ACB_WSTRUST ||
4692               acb_info & ACB_SVRTRUST ||
4693               acb_info & ACB_DOMTRUST) {
4694                 is_machine = True;
4695         }
4696
4697         username = escape_ldap_string_alloc(name);
4698         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
4699                                  username, LDAP_OBJ_POSIXACCOUNT);
4700         SAFE_FREE(username);
4701
4702         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4703         if (rc != LDAP_SUCCESS) {
4704                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
4705                 return NT_STATUS_UNSUCCESSFUL;
4706         }
4707         talloc_autofree_ldapmsg(tmp_ctx, result);
4708
4709         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4710
4711         if (num_result > 1) {
4712                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
4713                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4714         }
4715
4716         if (num_result == 1) {
4717                 char *tmp;
4718                 /* check if it is just a posix account.
4719                  * or if there is a sid attached to this entry
4720                  */
4721
4722                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4723                 if (!entry) {
4724                         return NT_STATUS_UNSUCCESSFUL;
4725                 }
4726
4727                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
4728                 if (tmp) {
4729                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
4730                         return NT_STATUS_USER_EXISTS;
4731                 }
4732
4733                 /* it is just a posix account, retrieve the dn for later use */
4734                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4735                 if (!dn) {
4736                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
4737                         return NT_STATUS_NO_MEMORY;
4738                 }
4739         }
4740
4741         if (num_result == 0) {
4742                 add_posix = True;
4743         }
4744
4745         /* Create the basic samu structure and generate the mods for the ldap commit */
4746         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
4747                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
4748                 return ret;
4749         }
4750
4751         sid_compose(&user_sid, get_global_sam_sid(), *rid);
4752
4753         user = samu_new(tmp_ctx);
4754         if (!user) {
4755                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
4756                 return NT_STATUS_NO_MEMORY;
4757         }
4758
4759         if (!pdb_set_username(user, name, PDB_SET)) {
4760                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4761                 return NT_STATUS_UNSUCCESSFUL;
4762         }
4763         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
4764                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4765                 return NT_STATUS_UNSUCCESSFUL;
4766         }
4767         if (is_machine) {
4768                 if (acb_info & ACB_NORMAL) {
4769                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
4770                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4771                                 return NT_STATUS_UNSUCCESSFUL;
4772                         }
4773                 } else {
4774                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
4775                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4776                                 return NT_STATUS_UNSUCCESSFUL;
4777                         }
4778                 }
4779         } else {
4780                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
4781                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4782                         return NT_STATUS_UNSUCCESSFUL;
4783                 }
4784         }
4785
4786         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
4787                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4788                 return NT_STATUS_UNSUCCESSFUL;
4789         }
4790
4791         if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
4792                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
4793                 return NT_STATUS_UNSUCCESSFUL;
4794         }
4795
4796         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
4797                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
4798         }
4799         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
4800
4801         if (add_posix) {
4802                 char *escape_name;
4803
4804                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
4805
4806                 /* retrieve the Domain Users group gid */
4807                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_GROUP_RID_USERS) ||
4808                     !sid_to_gid(&group_sid, &gid)) {
4809                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
4810                         return NT_STATUS_INVALID_PRIMARY_GROUP;
4811                 }
4812
4813                 /* lets allocate a new userid for this user */
4814                 if (!winbind_allocate_uid(&uid)) {
4815                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
4816                         return NT_STATUS_UNSUCCESSFUL;
4817                 }
4818
4819
4820                 if (is_machine) {
4821                         /* TODO: choose a more appropriate default for machines */
4822                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
4823                         shell = talloc_strdup(tmp_ctx, "/bin/false");
4824                 } else {
4825                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
4826                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
4827                 }
4828                 uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
4829                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
4830
4831                 escape_name = escape_rdn_val_string_alloc(name);
4832                 if (!escape_name) {
4833                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
4834                         return NT_STATUS_NO_MEMORY;
4835                 }
4836
4837                 if (is_machine) {
4838                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
4839                 } else {
4840                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
4841                 }
4842
4843                 SAFE_FREE(escape_name);
4844
4845                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
4846                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
4847                         return NT_STATUS_NO_MEMORY;
4848                 }
4849
4850                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
4851                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
4852                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
4853                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
4854                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
4855                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
4856                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
4857         }
4858
4859         talloc_autofree_ldapmod(tmp_ctx, mods);
4860
4861         if (add_posix) {
4862                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
4863         } else {
4864                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
4865         }
4866
4867         if (rc != LDAP_SUCCESS) {
4868                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
4869                 return NT_STATUS_UNSUCCESSFUL;
4870         }
4871
4872         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
4873
4874         flush_pwnam_cache();
4875
4876         return NT_STATUS_OK;
4877 }
4878
4879 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
4880 {
4881         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4882         LDAPMessage *result = NULL;
4883         LDAPMessage *entry = NULL;
4884         int num_result;
4885         const char *dn;
4886         char *filter;
4887         int rc;
4888
4889         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
4890
4891         filter = talloc_asprintf(tmp_ctx,
4892                                  "(&(uid=%s)"
4893                                  "(objectClass=%s)"
4894                                  "(objectClass=%s))",
4895                                  pdb_get_username(sam_acct),
4896                                  LDAP_OBJ_POSIXACCOUNT,
4897                                  LDAP_OBJ_SAMBASAMACCOUNT);
4898         if (filter == NULL) {
4899                 return NT_STATUS_NO_MEMORY;
4900         }
4901
4902         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4903         if (rc != LDAP_SUCCESS) {
4904                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
4905                 return NT_STATUS_UNSUCCESSFUL;
4906         }
4907         talloc_autofree_ldapmsg(tmp_ctx, result);
4908
4909         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4910
4911         if (num_result == 0) {
4912                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
4913                 return NT_STATUS_NO_SUCH_USER;
4914         }
4915
4916         if (num_result > 1) {
4917                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
4918                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4919         }
4920
4921         entry = ldap_first_entry(priv2ld(ldap_state), result);
4922         if (!entry) {
4923                 return NT_STATUS_UNSUCCESSFUL;
4924         }
4925
4926         /* it is just a posix account, retrieve the dn for later use */
4927         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
4928         if (!dn) {
4929                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
4930                 return NT_STATUS_NO_MEMORY;
4931         }
4932
4933         rc = smbldap_delete(ldap_state->smbldap_state, dn);
4934         if (rc != LDAP_SUCCESS) {
4935                 return NT_STATUS_UNSUCCESSFUL;
4936         }
4937
4938         flush_pwnam_cache();
4939
4940         return NT_STATUS_OK;
4941 }
4942
4943 /*
4944  * ldapsam_create_group creates a new
4945  * posixGroup and sambaGroupMapping object
4946  * in the ldap groups subtree
4947  *
4948  * The gid is allocated by winbindd.
4949  */
4950
4951 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
4952                                          TALLOC_CTX *tmp_ctx,
4953                                          const char *name,
4954                                          uint32 *rid)
4955 {
4956         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
4957         NTSTATUS ret;
4958         LDAPMessage *entry = NULL;
4959         LDAPMessage *result = NULL;
4960         uint32 num_result;
4961         BOOL is_new_entry = False;
4962         LDAPMod **mods = NULL;
4963         char *filter;
4964         char *groupsidstr;
4965         char *groupname;
4966         char *grouptype;
4967         char *gidstr;
4968         const char *dn = NULL;
4969         DOM_SID group_sid;
4970         gid_t gid = -1;
4971         int rc;
4972
4973         groupname = escape_ldap_string_alloc(name);
4974         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
4975                                  groupname, LDAP_OBJ_POSIXGROUP);
4976         SAFE_FREE(groupname);
4977
4978         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
4979         if (rc != LDAP_SUCCESS) {
4980                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
4981                 return NT_STATUS_UNSUCCESSFUL;
4982         }
4983         talloc_autofree_ldapmsg(tmp_ctx, result);
4984
4985         num_result = ldap_count_entries(priv2ld(ldap_state), result);
4986
4987         if (num_result > 1) {
4988                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
4989                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
4990         }
4991
4992         if (num_result == 1) {
4993                 char *tmp;
4994                 /* check if it is just a posix group.
4995                  * or if there is a sid attached to this entry
4996                  */
4997
4998                 entry = ldap_first_entry(priv2ld(ldap_state), result);
4999                 if (!entry) {
5000                         return NT_STATUS_UNSUCCESSFUL;
5001                 }
5002
5003                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5004                 if (tmp) {
5005                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5006                         return NT_STATUS_GROUP_EXISTS;
5007                 }
5008
5009                 /* it is just a posix group, retrieve the gid and the dn for later use */
5010                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5011                 if (!tmp) {
5012                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5013                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5014                 }
5015
5016                 gid = strtoul(tmp, NULL, 10);
5017
5018                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5019                 if (!dn) {
5020                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5021                         return NT_STATUS_NO_MEMORY;
5022                 }
5023         }
5024
5025         if (num_result == 0) {
5026                 char *escape_name;
5027
5028                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5029
5030                 is_new_entry = True;
5031
5032                 /* lets allocate a new groupid for this group */
5033                 if (!winbind_allocate_gid(&gid)) {
5034                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5035                         return NT_STATUS_UNSUCCESSFUL;
5036                 }
5037
5038                 gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
5039
5040                 escape_name = escape_rdn_val_string_alloc(name);
5041                 if (!escape_name) {
5042                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5043                         return NT_STATUS_NO_MEMORY;
5044                 }
5045
5046                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5047
5048                 SAFE_FREE(escape_name);
5049
5050                 if (!gidstr || !dn) {
5051                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5052                         return NT_STATUS_NO_MEMORY;
5053                 }
5054
5055                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5056                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5057                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5058         }
5059
5060         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5061                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5062                 return ret;
5063         }
5064
5065         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5066
5067         groupsidstr = talloc_strdup(tmp_ctx, sid_string_static(&group_sid));
5068         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5069
5070         if (!groupsidstr || !grouptype) {
5071                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5072                 return NT_STATUS_NO_MEMORY;
5073         }
5074
5075         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5076         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5077         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5078         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5079         talloc_autofree_ldapmod(tmp_ctx, mods);
5080
5081         if (is_new_entry) {
5082                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5083 #if 0
5084                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5085                         /* This call may fail with rfc2307bis schema */
5086                         /* Retry adding a structural class */
5087                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5088                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5089                 }
5090 #endif
5091         } else {
5092                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5093         }
5094
5095         if (rc != LDAP_SUCCESS) {
5096                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5097                 return NT_STATUS_UNSUCCESSFUL;
5098         }
5099
5100         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5101
5102         return NT_STATUS_OK;
5103 }
5104
5105 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32 rid)
5106 {
5107         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5108         LDAPMessage *result = NULL;
5109         LDAPMessage *entry = NULL;
5110         int num_result;
5111         const char *dn;
5112         char *gidstr;
5113         char *filter;
5114         DOM_SID group_sid;
5115         int rc;
5116
5117         /* get the group sid */
5118         sid_compose(&group_sid, get_global_sam_sid(), rid);
5119
5120         filter = talloc_asprintf(tmp_ctx,
5121                                  "(&(sambaSID=%s)"
5122                                  "(objectClass=%s)"
5123                                  "(objectClass=%s))",
5124                                  sid_string_static(&group_sid),
5125                                  LDAP_OBJ_POSIXGROUP,
5126                                  LDAP_OBJ_GROUPMAP);
5127         if (filter == NULL) {
5128                 return NT_STATUS_NO_MEMORY;
5129         }
5130
5131         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5132         if (rc != LDAP_SUCCESS) {
5133                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5134                 return NT_STATUS_UNSUCCESSFUL;
5135         }
5136         talloc_autofree_ldapmsg(tmp_ctx, result);
5137
5138         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5139
5140         if (num_result == 0) {
5141                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5142                 return NT_STATUS_NO_SUCH_GROUP;
5143         }
5144
5145         if (num_result > 1) {
5146                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5147                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5148         }
5149
5150         entry = ldap_first_entry(priv2ld(ldap_state), result);
5151         if (!entry) {
5152                 return NT_STATUS_UNSUCCESSFUL;
5153         }
5154
5155         /* here it is, retrieve the dn for later use */
5156         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5157         if (!dn) {
5158                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5159                 return NT_STATUS_NO_MEMORY;
5160         }
5161
5162         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5163         if (!gidstr) {
5164                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5165                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5166         }
5167
5168         /* check no user have this group marked as primary group */
5169         filter = talloc_asprintf(tmp_ctx,
5170                                  "(&(gidNumber=%s)"
5171                                  "(objectClass=%s)"
5172                                  "(objectClass=%s))",
5173                                  gidstr,
5174                                  LDAP_OBJ_POSIXACCOUNT,
5175                                  LDAP_OBJ_SAMBASAMACCOUNT);
5176
5177         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5178         if (rc != LDAP_SUCCESS) {
5179                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5180                 return NT_STATUS_UNSUCCESSFUL;
5181         }
5182         talloc_autofree_ldapmsg(tmp_ctx, result);
5183
5184         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5185
5186         if (num_result != 0) {
5187                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5188                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5189         }
5190
5191         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5192         if (rc != LDAP_SUCCESS) {
5193                 return NT_STATUS_UNSUCCESSFUL;
5194         }
5195
5196         return NT_STATUS_OK;
5197 }
5198
5199 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5200                                         TALLOC_CTX *tmp_ctx,
5201                                         uint32 group_rid,
5202                                         uint32 member_rid,
5203                                         int modop)
5204 {
5205         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5206         LDAPMessage *entry = NULL;
5207         LDAPMessage *result = NULL;
5208         uint32 num_result;
5209         LDAPMod **mods = NULL;
5210         char *filter;
5211         char *uidstr;
5212         const char *dn = NULL;
5213         DOM_SID group_sid;
5214         DOM_SID member_sid;
5215         int rc;
5216
5217         switch (modop) {
5218         case LDAP_MOD_ADD:
5219                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5220                 break;
5221         case LDAP_MOD_DELETE:
5222                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5223                 break;
5224         default:
5225                 return NT_STATUS_UNSUCCESSFUL;
5226         }
5227
5228         /* get member sid  */
5229         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5230
5231         /* get the group sid */
5232         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5233
5234         filter = talloc_asprintf(tmp_ctx,
5235                                  "(&(sambaSID=%s)"
5236                                  "(objectClass=%s)"
5237                                  "(objectClass=%s))",
5238                                  sid_string_static(&member_sid),
5239                                  LDAP_OBJ_POSIXACCOUNT,
5240                                  LDAP_OBJ_SAMBASAMACCOUNT);
5241         if (filter == NULL) {
5242                 return NT_STATUS_NO_MEMORY;
5243         }
5244
5245         /* get the member uid */
5246         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5247         if (rc != LDAP_SUCCESS) {
5248                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5249                 return NT_STATUS_UNSUCCESSFUL;
5250         }
5251         talloc_autofree_ldapmsg(tmp_ctx, result);
5252
5253         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5254
5255         if (num_result == 0) {
5256                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5257                 return NT_STATUS_NO_SUCH_MEMBER;
5258         }
5259
5260         if (num_result > 1) {
5261                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5262                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5263         }
5264
5265         entry = ldap_first_entry(priv2ld(ldap_state), result);
5266         if (!entry) {
5267                 return NT_STATUS_UNSUCCESSFUL;
5268         }
5269
5270         if (modop == LDAP_MOD_DELETE) {
5271                 /* check if we are trying to remove the member from his primary group */
5272                 char *gidstr;
5273                 gid_t user_gid, group_gid;
5274
5275                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5276                 if (!gidstr) {
5277                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5278                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5279                 }
5280
5281                 user_gid = strtoul(gidstr, NULL, 10);
5282
5283                 if (!sid_to_gid(&group_sid, &group_gid)) {
5284                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5285                         return NT_STATUS_UNSUCCESSFUL;
5286                 }
5287
5288                 if (user_gid == group_gid) {
5289                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from it's own primary group!\n"));
5290                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5291                 }
5292         }
5293
5294         /* here it is, retrieve the uid for later use */
5295         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5296         if (!uidstr) {
5297                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5298                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5299         }
5300
5301         filter = talloc_asprintf(tmp_ctx,
5302                                  "(&(sambaSID=%s)"
5303                                  "(objectClass=%s)"
5304                                  "(objectClass=%s))",
5305                                  sid_string_static(&group_sid),
5306                                  LDAP_OBJ_POSIXGROUP,
5307                                  LDAP_OBJ_GROUPMAP);
5308
5309         /* get the group */
5310         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5311         if (rc != LDAP_SUCCESS) {
5312                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5313                 return NT_STATUS_UNSUCCESSFUL;
5314         }
5315         talloc_autofree_ldapmsg(tmp_ctx, result);
5316
5317         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5318
5319         if (num_result == 0) {
5320                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5321                 return NT_STATUS_NO_SUCH_GROUP;
5322         }
5323
5324         if (num_result > 1) {
5325                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5326                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5327         }
5328
5329         entry = ldap_first_entry(priv2ld(ldap_state), result);
5330         if (!entry) {
5331                 return NT_STATUS_UNSUCCESSFUL;
5332         }
5333
5334         /* here it is, retrieve the dn for later use */
5335         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5336         if (!dn) {
5337                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5338                 return NT_STATUS_NO_MEMORY;
5339         }
5340
5341         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5342
5343         talloc_autofree_ldapmod(tmp_ctx, mods);
5344
5345         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5346         if (rc != LDAP_SUCCESS) {
5347                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5348                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5349                         return NT_STATUS_MEMBER_IN_GROUP;
5350                 }
5351                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5352                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5353                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5354                 }
5355                 return NT_STATUS_UNSUCCESSFUL;
5356         }
5357
5358         return NT_STATUS_OK;
5359 }
5360
5361 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5362                                      TALLOC_CTX *tmp_ctx,
5363                                      uint32 group_rid,
5364                                      uint32 member_rid)
5365 {
5366         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5367 }
5368 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5369                                      TALLOC_CTX *tmp_ctx,
5370                                      uint32 group_rid,
5371                                      uint32 member_rid)
5372 {
5373         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5374 }
5375
5376 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5377                                           TALLOC_CTX *mem_ctx,
5378                                           struct samu *sampass)
5379 {
5380         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5381         LDAPMessage *entry = NULL;
5382         LDAPMessage *result = NULL;
5383         uint32 num_result;
5384         LDAPMod **mods = NULL;
5385         char *filter;
5386         char *escape_username;
5387         char *gidstr;
5388         const char *dn = NULL;
5389         gid_t gid;
5390         int rc;
5391
5392         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
5393
5394         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
5395                 DEBUG(0,("ldapsam_set_primary_group: failed to retieve gid from user's group SID!\n"));
5396                 return NT_STATUS_UNSUCCESSFUL;
5397         }
5398         gidstr = talloc_asprintf(mem_ctx, "%d", gid);
5399         if (!gidstr) {
5400                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
5401                 return NT_STATUS_NO_MEMORY;
5402         }
5403
5404         escape_username = escape_ldap_string_alloc(pdb_get_username(sampass));
5405         if (escape_username== NULL) {
5406                 return NT_STATUS_NO_MEMORY;
5407         }
5408
5409         filter = talloc_asprintf(mem_ctx,
5410                                  "(&(uid=%s)"
5411                                  "(objectClass=%s)"
5412                                  "(objectClass=%s))",
5413                                  escape_username,
5414                                  LDAP_OBJ_POSIXACCOUNT,
5415                                  LDAP_OBJ_SAMBASAMACCOUNT);
5416
5417         SAFE_FREE(escape_username);
5418
5419         if (filter == NULL) {
5420                 return NT_STATUS_NO_MEMORY;
5421         }
5422
5423         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5424         if (rc != LDAP_SUCCESS) {
5425                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
5426                 return NT_STATUS_UNSUCCESSFUL;
5427         }
5428         talloc_autofree_ldapmsg(mem_ctx, result);
5429
5430         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5431
5432         if (num_result == 0) {
5433                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
5434                 return NT_STATUS_NO_SUCH_USER;
5435         }
5436
5437         if (num_result > 1) {
5438                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
5439                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5440         }
5441
5442         entry = ldap_first_entry(priv2ld(ldap_state), result);
5443         if (!entry) {
5444                 return NT_STATUS_UNSUCCESSFUL;
5445         }
5446
5447         /* retrieve the dn for later use */
5448         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
5449         if (!dn) {
5450                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
5451                 return NT_STATUS_NO_MEMORY;
5452         }
5453
5454         /* remove the old one, and add the new one, this way we do not risk races */
5455         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
5456
5457         if (mods == NULL) {
5458                 return NT_STATUS_OK;
5459         }
5460
5461         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5462
5463         if (rc != LDAP_SUCCESS) {
5464                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
5465                          pdb_get_username(sampass), gidstr));
5466                 return NT_STATUS_UNSUCCESSFUL;
5467         }
5468
5469         flush_pwnam_cache();
5470
5471         return NT_STATUS_OK;
5472 }
5473
5474 /**********************************************************************
5475  Housekeeping
5476  *********************************************************************/
5477
5478 static void free_private_data(void **vp)
5479 {
5480         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
5481
5482         smbldap_free_struct(&(*ldap_state)->smbldap_state);
5483
5484         if ((*ldap_state)->result != NULL) {
5485                 ldap_msgfree((*ldap_state)->result);
5486                 (*ldap_state)->result = NULL;
5487         }
5488         if ((*ldap_state)->domain_dn != NULL) {
5489                 SAFE_FREE((*ldap_state)->domain_dn);
5490         }
5491
5492         *ldap_state = NULL;
5493
5494         /* No need to free any further, as it is talloc()ed */
5495 }
5496
5497 /*********************************************************************
5498  Intitalise the parts of the pdb_methods structure that are common to
5499  all pdb_ldap modes
5500 *********************************************************************/
5501
5502 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
5503 {
5504         NTSTATUS nt_status;
5505         struct ldapsam_privates *ldap_state;
5506
5507         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
5508                 return nt_status;
5509         }
5510
5511         (*pdb_method)->name = "ldapsam";
5512
5513         (*pdb_method)->setsampwent = ldapsam_setsampwent;
5514         (*pdb_method)->endsampwent = ldapsam_endsampwent;
5515         (*pdb_method)->getsampwent = ldapsam_getsampwent;
5516         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
5517         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
5518         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
5519         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
5520         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
5521         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
5522
5523         (*pdb_method)->getgrsid = ldapsam_getgrsid;
5524         (*pdb_method)->getgrgid = ldapsam_getgrgid;
5525         (*pdb_method)->getgrnam = ldapsam_getgrnam;
5526         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
5527         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
5528         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
5529         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
5530
5531         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
5532         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
5533
5534         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
5535
5536         (*pdb_method)->rid_algorithm = ldapsam_rid_algorithm;
5537         (*pdb_method)->new_rid = ldapsam_new_rid;
5538
5539         /* TODO: Setup private data and free */
5540
5541         if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
5542                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
5543                 return NT_STATUS_NO_MEMORY;
5544         }
5545
5546         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
5547                                  location, &ldap_state->smbldap_state);
5548
5549         if ( !NT_STATUS_IS_OK(nt_status) ) {
5550                 return nt_status;
5551         }
5552
5553         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
5554                 return NT_STATUS_NO_MEMORY;
5555         }
5556
5557         (*pdb_method)->private_data = ldap_state;
5558
5559         (*pdb_method)->free_private_data = free_private_data;
5560
5561         return NT_STATUS_OK;
5562 }
5563
5564 /**********************************************************************
5565  Initialise the 'compat' mode for pdb_ldap
5566  *********************************************************************/
5567
5568 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
5569 {
5570         NTSTATUS nt_status;
5571         struct ldapsam_privates *ldap_state;
5572         char *uri = talloc_strdup( NULL, location );
5573
5574         trim_char( uri, '\"', '\"' );
5575         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
5576         if ( uri )
5577                 TALLOC_FREE( uri );
5578
5579         if ( !NT_STATUS_IS_OK(nt_status) ) {
5580                 return nt_status;
5581         }
5582
5583         (*pdb_method)->name = "ldapsam_compat";
5584
5585         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
5586         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
5587
5588         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5589
5590         return NT_STATUS_OK;
5591 }
5592
5593 /**********************************************************************
5594  Initialise the normal mode for pdb_ldap
5595  *********************************************************************/
5596
5597 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
5598 {
5599         NTSTATUS nt_status;
5600         struct ldapsam_privates *ldap_state;
5601         uint32 alg_rid_base;
5602         pstring alg_rid_base_string;
5603         LDAPMessage *result = NULL;
5604         LDAPMessage *entry = NULL;
5605         DOM_SID ldap_domain_sid;
5606         DOM_SID secrets_domain_sid;
5607         pstring domain_sid_string;
5608         char *dn;
5609         char *uri = talloc_strdup( NULL, location );
5610
5611         trim_char( uri, '\"', '\"' );
5612         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
5613         if ( uri )
5614                 TALLOC_FREE( uri );
5615
5616         if (!NT_STATUS_IS_OK(nt_status)) {
5617                 return nt_status;
5618         }
5619
5620         (*pdb_method)->name = "ldapsam";
5621
5622         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
5623         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
5624         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
5625         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
5626         (*pdb_method)->search_users = ldapsam_search_users;
5627         (*pdb_method)->search_groups = ldapsam_search_groups;
5628         (*pdb_method)->search_aliases = ldapsam_search_aliases;
5629
5630         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
5631                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
5632                 (*pdb_method)->enum_group_memberships =
5633                         ldapsam_enum_group_memberships;
5634                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
5635                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
5636
5637                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
5638                         (*pdb_method)->create_user = ldapsam_create_user;
5639                         (*pdb_method)->delete_user = ldapsam_delete_user;
5640                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
5641                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
5642                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
5643                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
5644                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
5645                 }
5646         }
5647
5648         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
5649         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
5650
5651         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
5652
5653         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
5654                                                &result,
5655                                                ldap_state->domain_name, True);
5656
5657         if ( !NT_STATUS_IS_OK(nt_status) ) {
5658                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
5659                           "info, nor add one to the domain\n"));
5660                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
5661                              "will be unable to allocate new users/groups, "
5662                              "and will risk BDCs having inconsistant SIDs\n"));
5663                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
5664                 return NT_STATUS_OK;
5665         }
5666
5667         /* Given that the above might fail, everything below this must be
5668          * optional */
5669
5670         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
5671                                  result);
5672         if (!entry) {
5673                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
5674                           "entry\n"));
5675                 ldap_msgfree(result);
5676                 return NT_STATUS_UNSUCCESSFUL;
5677         }
5678
5679         dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
5680         if (!dn) {
5681                 ldap_msgfree(result);
5682                 return NT_STATUS_UNSUCCESSFUL;
5683         }
5684
5685         ldap_state->domain_dn = smb_xstrdup(dn);
5686         ldap_memfree(dn);
5687
5688         if (smbldap_get_single_pstring(
5689                     ldap_state->smbldap_state->ldap_struct,
5690                     entry,
5691                     get_userattr_key2string(ldap_state->schema_ver,
5692                                             LDAP_ATTR_USER_SID),
5693                     domain_sid_string)) {
5694                 BOOL found_sid;
5695                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
5696                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
5697                                   "read as a valid SID\n", domain_sid_string));
5698                         ldap_msgfree(result);
5699                         return NT_STATUS_INVALID_PARAMETER;
5700                 }
5701                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
5702                                                      &secrets_domain_sid);
5703                 if (!found_sid || !sid_equal(&secrets_domain_sid,
5704                                              &ldap_domain_sid)) {
5705                         fstring new_sid_str, old_sid_str;
5706                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
5707                                   "%s based on pdb_ldap results %s -> %s\n",
5708                                   ldap_state->domain_name,
5709                                   sid_to_string(old_sid_str,
5710                                                 &secrets_domain_sid),
5711                                   sid_to_string(new_sid_str,
5712                                                 &ldap_domain_sid)));
5713
5714                         /* reset secrets.tdb sid */
5715                         secrets_store_domain_sid(ldap_state->domain_name,
5716                                                  &ldap_domain_sid);
5717                         DEBUG(1, ("New global sam SID: %s\n",
5718                                   sid_to_string(new_sid_str,
5719                                                 get_global_sam_sid())));
5720                 }
5721                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
5722         }
5723
5724         if (smbldap_get_single_pstring(
5725                     ldap_state->smbldap_state->ldap_struct,
5726                     entry,
5727                     get_attr_key2string( dominfo_attr_list,
5728                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
5729                     alg_rid_base_string)) {
5730                 alg_rid_base = (uint32)atol(alg_rid_base_string);
5731                 if (alg_rid_base != algorithmic_rid_base()) {
5732                         DEBUG(0, ("The value of 'algorithmic RID base' has "
5733                                   "changed since the LDAP\n"
5734                                   "database was initialised.  Aborting. \n"));
5735                         ldap_msgfree(result);
5736                         return NT_STATUS_UNSUCCESSFUL;
5737                 }
5738         }
5739         ldap_msgfree(result);
5740
5741         return NT_STATUS_OK;
5742 }
5743
5744 NTSTATUS pdb_ldap_init(void)
5745 {
5746         NTSTATUS nt_status;
5747         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
5748                 return nt_status;
5749
5750         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
5751                 return nt_status;
5752
5753         /* Let pdb_nds register backends */
5754         pdb_nds_init();
5755
5756         return NT_STATUS_OK;
5757 }