source3/passdb/pdb_ldap.c

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