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 "passdb.h"
  48 #include "../libcli/auth/libcli_auth.h"
  49 #include "secrets.h"
  50 #include "idmap_cache.h"
  51 #include "../libcli/security/security.h"
  52 #include "../lib/util/util_pw.h"
  53 #include "lib/winbind_util.h"
  54
  55 #undef DBGC_CLASS
  56 #define DBGC_CLASS DBGC_PASSDB
  57
  58 #include <lber.h>
  59 #include <ldap.h>
  60
  61
  62 #include "smbldap.h"
  63
  64 /**********************************************************************
  65  Simple helper function to make stuff better readable
  66  **********************************************************************/
  67
  68 LDAP *priv2ld(struct ldapsam_privates *priv)
  69 {
  70         return priv->smbldap_state->ldap_struct;
  71 }
  72
  73 /**********************************************************************
  74  Get the attribute name given a user schame version.
  75  **********************************************************************/
  76
  77 static const char* get_userattr_key2string( int schema_ver, int key )
  78 {
  79         switch ( schema_ver ) {
  80                 case SCHEMAVER_SAMBAACCOUNT:
  81                         return get_attr_key2string( attrib_map_v22, key );
  82
  83                 case SCHEMAVER_SAMBASAMACCOUNT:
  84                         return get_attr_key2string( attrib_map_v30, key );
  85
  86                 default:
  87                         DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
  88                         break;
  89         }
  90         return NULL;
  91 }
  92
  93 /**********************************************************************
  94  Return the list of attribute names given a user schema version.
  95 **********************************************************************/
  96
  97 const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
  98 {
  99         switch ( schema_ver ) {
 100                 case SCHEMAVER_SAMBAACCOUNT:
 101                         return get_attr_list( mem_ctx, attrib_map_v22 );
 102
 103                 case SCHEMAVER_SAMBASAMACCOUNT:
 104                         return get_attr_list( mem_ctx, attrib_map_v30 );
 105                 default:
 106                         DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
 107                         break;
 108         }
 109
 110         return NULL;
 111 }
 112
 113 /**************************************************************************
 114  Return the list of attribute names to delete given a user schema version.
 115 **************************************************************************/
 116
 117 static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
 118                                               int schema_ver )
 119 {
 120         switch ( schema_ver ) {
 121                 case SCHEMAVER_SAMBAACCOUNT:
 122                         return get_attr_list( mem_ctx,
 123                                               attrib_map_to_delete_v22 );
 124
 125                 case SCHEMAVER_SAMBASAMACCOUNT:
 126                         return get_attr_list( mem_ctx,
 127                                               attrib_map_to_delete_v30 );
 128                 default:
 129                         DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
 130                         break;
 131         }
 132
 133         return NULL;
 134 }
 135
 136
 137 /*******************************************************************
 138  Generate the LDAP search filter for the objectclass based on the
 139  version of the schema we are using.
 140 ******************************************************************/
 141
 142 static const char* get_objclass_filter( int schema_ver )
 143 {
 144         fstring objclass_filter;
 145         char *result;
 146
 147         switch( schema_ver ) {
 148                 case SCHEMAVER_SAMBAACCOUNT:
 149                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
 150                         break;
 151                 case SCHEMAVER_SAMBASAMACCOUNT:
 152                         fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
 153                         break;
 154                 default:
 155                         DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
 156                         objclass_filter[0] = '\0';
 157                         break;
 158         }
 159
 160         result = talloc_strdup(talloc_tos(), objclass_filter);
 161         SMB_ASSERT(result != NULL);
 162         return result;
 163 }
 164
 165 /*****************************************************************
 166  Scan a sequence number off OpenLDAP's syncrepl contextCSN
 167 ******************************************************************/
 168
 169 static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
 170 {
 171         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
 172         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
 173         LDAPMessage *msg = NULL;
 174         LDAPMessage *entry = NULL;
 175         TALLOC_CTX *mem_ctx;
 176         char **values = NULL;
 177         int rc, num_result, num_values, rid;
 178         char *suffix = NULL;
 179         char *tok;
 180         const char *p;
 181         const char **attrs;
 182
 183         /* Unfortunatly there is no proper way to detect syncrepl-support in
 184          * smbldap_connect_system(). The syncrepl OIDs are submitted for publication
 185          * but do not show up in the root-DSE yet. Neither we can query the
 186          * subschema-context for the syncProviderSubentry or syncConsumerSubentry
 187          * objectclass. Currently we require lp_ldap_suffix() to show up as
 188          * namingContext.  -  Guenther
 189          */
 190
 191         if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
 192                 return ntstatus;
 193         }
 194
 195         if (!seq_num) {
 196                 DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
 197                 return ntstatus;
 198         }
 199
 200         if (!smbldap_has_naming_context(ldap_state->smbldap_state->ldap_struct, lp_ldap_suffix())) {
 201                 DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
 202                          "as top-level namingContext\n", lp_ldap_suffix()));
 203                 return ntstatus;
 204         }
 205
 206         mem_ctx = talloc_init("ldapsam_get_seq_num");
 207
 208         if (mem_ctx == NULL)
 209                 return NT_STATUS_NO_MEMORY;
 210
 211         if ((attrs = talloc_array(mem_ctx, const char *, 2)) == NULL) {
 212                 ntstatus = NT_STATUS_NO_MEMORY;
 213                 goto done;
 214         }
 215
 216         /* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
 217         rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
 218         if (rid > 0) {
 219
 220                 /* consumer syncreplCookie: */
 221                 /* csn=20050126161620Z#0000001#00#00000 */
 222                 attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
 223                 attrs[1] = NULL;
 224                 suffix = talloc_asprintf(mem_ctx,
 225                                 "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
 226                 if (!suffix) {
 227                         ntstatus = NT_STATUS_NO_MEMORY;
 228                         goto done;
 229                 }
 230         } else {
 231
 232                 /* provider contextCSN */
 233                 /* 20050126161620Z#000009#00#000000 */
 234                 attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
 235                 attrs[1] = NULL;
 236                 suffix = talloc_asprintf(mem_ctx,
 237                                 "cn=ldapsync,%s", lp_ldap_suffix());
 238
 239                 if (!suffix) {
 240                         ntstatus = NT_STATUS_NO_MEMORY;
 241                         goto done;
 242                 }
 243         }
 244
 245         rc = smbldap_search(ldap_state->smbldap_state, suffix,
 246                             LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
 247
 248         if (rc != LDAP_SUCCESS) {
 249                 goto done;
 250         }
 251
 252         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg);
 253         if (num_result != 1) {
 254                 DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
 255                 goto done;
 256         }
 257
 258         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg);
 259         if (entry == NULL) {
 260                 DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
 261                 goto done;
 262         }
 263
 264         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, entry, attrs[0]);
 265         if (values == NULL) {
 266                 DEBUG(3,("ldapsam_get_seq_num: no values\n"));
 267                 goto done;
 268         }
 269
 270         num_values = ldap_count_values(values);
 271         if (num_values == 0) {
 272                 DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
 273                 goto done;
 274         }
 275
 276         p = values[0];
 277         if (!next_token_talloc(mem_ctx, &p, &tok, "#")) {
 278                 DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
 279                 goto done;
 280         }
 281
 282         p = tok;
 283         if (!strncmp(p, "csn=", strlen("csn=")))
 284                 p += strlen("csn=");
 285
 286         DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
 287
 288         *seq_num = generalized_to_unix_time(p);
 289
 290         /* very basic sanity check */
 291         if (*seq_num <= 0) {
 292                 DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
 293                         (int)*seq_num));
 294                 goto done;
 295         }
 296
 297         ntstatus = NT_STATUS_OK;
 298
 299  done:
 300         if (values != NULL)
 301                 ldap_value_free(values);
 302         if (msg != NULL)
 303                 ldap_msgfree(msg);
 304         if (mem_ctx)
 305                 talloc_destroy(mem_ctx);
 306
 307         return ntstatus;
 308 }
 309
 310 /*******************************************************************
 311  Run the search by name.
 312 ******************************************************************/
 313
 314 int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
 315                                           const char *user,
 316                                           LDAPMessage ** result,
 317                                           const char **attr)
 318 {
 319         char *filter = NULL;
 320         char *escape_user = escape_ldap_string(talloc_tos(), user);
 321         int ret = -1;
 322
 323         if (!escape_user) {
 324                 return LDAP_NO_MEMORY;
 325         }
 326
 327         /*
 328          * in the filter expression, replace %u with the real name
 329          * so in ldap filter, %u MUST exist :-)
 330          */
 331         filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
 332                 get_objclass_filter(ldap_state->schema_ver));
 333         if (!filter) {
 334                 TALLOC_FREE(escape_user);
 335                 return LDAP_NO_MEMORY;
 336         }
 337         /*
 338          * have to use this here because $ is filtered out
 339          * in string_sub
 340          */
 341
 342         filter = talloc_all_string_sub(talloc_tos(),
 343                                 filter, "%u", escape_user);
 344         TALLOC_FREE(escape_user);
 345         if (!filter) {
 346                 return LDAP_NO_MEMORY;
 347         }
 348
 349         ret = smbldap_search_suffix(ldap_state->smbldap_state,
 350                         filter, attr, result);
 351         TALLOC_FREE(filter);
 352         return ret;
 353 }
 354
 355 /*******************************************************************
 356  Run the search by rid.
 357 ******************************************************************/
 358
 359 static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
 360                                          uint32_t rid, LDAPMessage ** result,
 361                                          const char **attr)
 362 {
 363         char *filter = NULL;
 364         int rc;
 365
 366         filter = talloc_asprintf(talloc_tos(), "(&(rid=%i)%s)", rid,
 367                 get_objclass_filter(ldap_state->schema_ver));
 368         if (!filter) {
 369                 return LDAP_NO_MEMORY;
 370         }
 371
 372         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 373                         filter, attr, result);
 374         TALLOC_FREE(filter);
 375         return rc;
 376 }
 377
 378 /*******************************************************************
 379  Run the search by SID.
 380 ******************************************************************/
 381
 382 static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
 383                                  const struct dom_sid *sid, LDAPMessage ** result,
 384                                  const char **attr)
 385 {
 386         char *filter = NULL;
 387         int rc;
 388         fstring sid_string;
 389
 390         filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
 391                 get_userattr_key2string(ldap_state->schema_ver,
 392                         LDAP_ATTR_USER_SID),
 393                 sid_to_fstring(sid_string, sid),
 394                 get_objclass_filter(ldap_state->schema_ver));
 395         if (!filter) {
 396                 return LDAP_NO_MEMORY;
 397         }
 398
 399         rc = smbldap_search_suffix(ldap_state->smbldap_state,
 400                         filter, attr, result);
 401
 402         TALLOC_FREE(filter);
 403         return rc;
 404 }
 405
 406 /*******************************************************************
 407  Delete complete object or objectclass and attrs from
 408  object found in search_result depending on lp_ldap_delete_dn
 409 ******************************************************************/
 410
 411 static int ldapsam_delete_entry(struct ldapsam_privates *priv,
 412                                 TALLOC_CTX *mem_ctx,
 413                                 LDAPMessage *entry,
 414                                 const char *objectclass,
 415                                 const char **attrs)
 416 {
 417         LDAPMod **mods = NULL;
 418         char *name;
 419         const char *dn;
 420         BerElement *ptr = NULL;
 421
 422         dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
 423         if (dn == NULL) {
 424                 return LDAP_NO_MEMORY;
 425         }
 426
 427         if (lp_ldap_delete_dn()) {
 428                 return smbldap_delete(priv->smbldap_state, dn);
 429         }
 430
 431         /* Ok, delete only the SAM attributes */
 432
 433         for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
 434              name != NULL;
 435              name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
 436                 const char **attrib;
 437
 438                 /* We are only allowed to delete the attributes that
 439                    really exist. */
 440
 441                 for (attrib = attrs; *attrib != NULL; attrib++) {
 442                         if (strequal(*attrib, name)) {
 443                                 DEBUG(10, ("ldapsam_delete_entry: deleting "
 444                                            "attribute %s\n", name));
 445                                 smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
 446                                                 NULL);
 447                         }
 448                 }
 449                 ldap_memfree(name);
 450         }
 451
 452         if (ptr != NULL) {
 453                 ber_free(ptr, 0);
 454         }
 455
 456         smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
 457         talloc_autofree_ldapmod(mem_ctx, mods);
 458
 459         return smbldap_modify(priv->smbldap_state, dn, mods);
 460 }
 461
 462 static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
 463 {
 464         char *temp;
 465         struct tm tm;
 466
 467         temp = smbldap_talloc_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
 468                         get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
 469                         talloc_tos());
 470         if (!temp) {
 471                 return (time_t) 0;
 472         }
 473
 474         if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
 475                 DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
 476                         (char*)temp));
 477                 TALLOC_FREE(temp);
 478                 return (time_t) 0;
 479         }
 480         TALLOC_FREE(temp);
 481         tzset();
 482         return timegm(&tm);
 483 }
 484
 485 /**********************************************************************
 486  Initialize struct samu from an LDAP query.
 487  (Based on init_sam_from_buffer in pdb_tdb.c)
 488 *********************************************************************/
 489
 490 static bool init_sam_from_ldap(struct ldapsam_privates *ldap_state,
 491                                 struct samu * sampass,
 492                                 LDAPMessage * entry)
 493 {
 494         time_t  logon_time,
 495                         logoff_time,
 496                         kickoff_time,
 497                         pass_last_set_time,
 498                         pass_can_change_time,
 499                         pass_must_change_time,
 500                         ldap_entry_time,
 501                         bad_password_time;
 502         char *username = NULL,
 503                         *domain = NULL,
 504                         *nt_username = NULL,
 505                         *fullname = NULL,
 506                         *homedir = NULL,
 507                         *dir_drive = NULL,
 508                         *logon_script = NULL,
 509                         *profile_path = NULL,
 510                         *acct_desc = NULL,
 511                         *workstations = NULL,
 512                         *munged_dial = NULL;
 513         uint32_t                user_rid;
 514         uint8           smblmpwd[LM_HASH_LEN],
 515                         smbntpwd[NT_HASH_LEN];
 516         bool            use_samba_attrs = True;
 517         uint32_t                acct_ctrl = 0;
 518         uint16_t                logon_divs;
 519         uint16_t                bad_password_count = 0,
 520                         logon_count = 0;
 521         uint32_t hours_len;
 522         uint8           hours[MAX_HOURS_LEN];
 523         char *temp = NULL;
 524         struct login_cache cache_entry;
 525         uint32_t                pwHistLen;
 526         bool expand_explicit = lp_passdb_expand_explicit();
 527         bool ret = false;
 528         TALLOC_CTX *ctx = talloc_init("init_sam_from_ldap");
 529
 530         if (!ctx) {
 531                 return false;
 532         }
 533         if (sampass == NULL || ldap_state == NULL || entry == NULL) {
 534                 DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
 535                 goto fn_exit;
 536         }
 537
 538         if (priv2ld(ldap_state) == NULL) {
 539                 DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
 540                           "ldap_struct is NULL!\n"));
 541                 goto fn_exit;
 542         }
 543
 544         if (!(username = smbldap_talloc_first_attribute(priv2ld(ldap_state),
 545                                         entry,
 546                                         "uid",
 547                                         ctx))) {
 548                 DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
 549                           "this user!\n"));
 550                 goto fn_exit;
 551         }
 552
 553         DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
 554
 555         nt_username = talloc_strdup(ctx, username);
 556         if (!nt_username) {
 557                 goto fn_exit;
 558         }
 559
 560         domain = talloc_strdup(ctx, ldap_state->domain_name);
 561         if (!domain) {
 562                 goto fn_exit;
 563         }
 564
 565         pdb_set_username(sampass, username, PDB_SET);
 566
 567         pdb_set_domain(sampass, domain, PDB_DEFAULT);
 568         pdb_set_nt_username(sampass, nt_username, PDB_SET);
 569
 570         /* deal with different attributes between the schema first */
 571
 572         if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
 573                 if ((temp = smbldap_talloc_single_attribute(
 574                                 ldap_state->smbldap_state->ldap_struct,
 575                                 entry,
 576                                 get_userattr_key2string(ldap_state->schema_ver,
 577                                         LDAP_ATTR_USER_SID),
 578                                 ctx))!=NULL) {
 579                         pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
 580                 }
 581         } else {
 582                 if ((temp = smbldap_talloc_single_attribute(
 583                                 ldap_state->smbldap_state->ldap_struct,
 584                                 entry,
 585                                 get_userattr_key2string(ldap_state->schema_ver,
 586                                         LDAP_ATTR_USER_RID),
 587                                 ctx))!=NULL) {
 588                         user_rid = (uint32_t)atol(temp);
 589                         pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
 590                 }
 591         }
 592
 593         if (IS_SAM_DEFAULT(sampass, PDB_USERSID)) {
 594                 DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
 595                         get_userattr_key2string(ldap_state->schema_ver,
 596                                 LDAP_ATTR_USER_SID),
 597                         get_userattr_key2string(ldap_state->schema_ver,
 598                                 LDAP_ATTR_USER_RID),
 599                         username));
 600                 return False;
 601         }
 602
 603         temp = smbldap_talloc_single_attribute(
 604                         ldap_state->smbldap_state->ldap_struct,
 605                         entry,
 606                         get_userattr_key2string(ldap_state->schema_ver,
 607                                 LDAP_ATTR_PWD_LAST_SET),
 608                         ctx);
 609         if (temp) {
 610                 pass_last_set_time = (time_t) atol(temp);
 611                 pdb_set_pass_last_set_time(sampass,
 612                                 pass_last_set_time, PDB_SET);
 613         }
 614
 615         temp = smbldap_talloc_single_attribute(
 616                         ldap_state->smbldap_state->ldap_struct,
 617                         entry,
 618                         get_userattr_key2string(ldap_state->schema_ver,
 619                                 LDAP_ATTR_LOGON_TIME),
 620                         ctx);
 621         if (temp) {
 622                 logon_time = (time_t) atol(temp);
 623                 pdb_set_logon_time(sampass, logon_time, PDB_SET);
 624         }
 625
 626         temp = smbldap_talloc_single_attribute(
 627                         ldap_state->smbldap_state->ldap_struct,
 628                         entry,
 629                         get_userattr_key2string(ldap_state->schema_ver,
 630                                 LDAP_ATTR_LOGOFF_TIME),
 631                         ctx);
 632         if (temp) {
 633                 logoff_time = (time_t) atol(temp);
 634                 pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
 635         }
 636
 637         temp = smbldap_talloc_single_attribute(
 638                         ldap_state->smbldap_state->ldap_struct,
 639                         entry,
 640                         get_userattr_key2string(ldap_state->schema_ver,
 641                                 LDAP_ATTR_KICKOFF_TIME),
 642                         ctx);
 643         if (temp) {
 644                 kickoff_time = (time_t) atol(temp);
 645                 pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
 646         }
 647
 648         temp = smbldap_talloc_single_attribute(
 649                         ldap_state->smbldap_state->ldap_struct,
 650                         entry,
 651                         get_userattr_key2string(ldap_state->schema_ver,
 652                                 LDAP_ATTR_PWD_CAN_CHANGE),
 653                         ctx);
 654         if (temp) {
 655                 pass_can_change_time = (time_t) atol(temp);
 656                 pdb_set_pass_can_change_time(sampass,
 657                                 pass_can_change_time, PDB_SET);
 658         }
 659
 660         temp = smbldap_talloc_single_attribute(
 661                         ldap_state->smbldap_state->ldap_struct,
 662                         entry,
 663                         get_userattr_key2string(ldap_state->schema_ver,
 664                                 LDAP_ATTR_PWD_MUST_CHANGE),
 665                         ctx);
 666         if (temp) {
 667                 pass_must_change_time = (time_t) atol(temp);
 668                 pdb_set_pass_must_change_time(sampass,
 669                                 pass_must_change_time, PDB_SET);
 670         }
 671
 672         /* recommend that 'gecos' and 'displayName' should refer to the same
 673          * attribute OID.  userFullName depreciated, only used by Samba
 674          * primary rules of LDAP: don't make a new attribute when one is already defined
 675          * that fits your needs; using cn then displayName rather than 'userFullName'
 676          */
 677
 678         fullname = smbldap_talloc_single_attribute(
 679                         ldap_state->smbldap_state->ldap_struct,
 680                         entry,
 681                         get_userattr_key2string(ldap_state->schema_ver,
 682                                 LDAP_ATTR_DISPLAY_NAME),
 683                         ctx);
 684         if (fullname) {
 685                 pdb_set_fullname(sampass, fullname, PDB_SET);
 686         } else {
 687                 fullname = smbldap_talloc_single_attribute(
 688                                 ldap_state->smbldap_state->ldap_struct,
 689                                 entry,
 690                                 get_userattr_key2string(ldap_state->schema_ver,
 691                                         LDAP_ATTR_CN),
 692                                 ctx);
 693                 if (fullname) {
 694                         pdb_set_fullname(sampass, fullname, PDB_SET);
 695                 }
 696         }
 697
 698         dir_drive = smbldap_talloc_single_attribute(
 699                         ldap_state->smbldap_state->ldap_struct,
 700                         entry,
 701                         get_userattr_key2string(ldap_state->schema_ver,
 702                                 LDAP_ATTR_HOME_DRIVE),
 703                         ctx);
 704         if (dir_drive) {
 705                 pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
 706         } else {
 707                 pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
 708         }
 709
 710         homedir = smbldap_talloc_single_attribute(
 711                         ldap_state->smbldap_state->ldap_struct,
 712                         entry,
 713                         get_userattr_key2string(ldap_state->schema_ver,
 714                                 LDAP_ATTR_HOME_PATH),
 715                         ctx);
 716         if (homedir) {
 717                 if (expand_explicit) {
 718                         homedir = talloc_sub_basic(ctx,
 719                                                 username,
 720                                                 domain,
 721                                                 homedir);
 722                         if (!homedir) {
 723                                 goto fn_exit;
 724                         }
 725                 }
 726                 pdb_set_homedir(sampass, homedir, PDB_SET);
 727         } else {
 728                 pdb_set_homedir(sampass,
 729                         talloc_sub_basic(ctx, username, domain,
 730                                          lp_logon_home()),
 731                         PDB_DEFAULT);
 732         }
 733
 734         logon_script = smbldap_talloc_single_attribute(
 735                         ldap_state->smbldap_state->ldap_struct,
 736                         entry,
 737                         get_userattr_key2string(ldap_state->schema_ver,
 738                                 LDAP_ATTR_LOGON_SCRIPT),
 739                         ctx);
 740         if (logon_script) {
 741                 if (expand_explicit) {
 742                         logon_script = talloc_sub_basic(ctx,
 743                                                 username,
 744                                                 domain,
 745                                                 logon_script);
 746                         if (!logon_script) {
 747                                 goto fn_exit;
 748                         }
 749                 }
 750                 pdb_set_logon_script(sampass, logon_script, PDB_SET);
 751         } else {
 752                 pdb_set_logon_script(sampass,
 753                         talloc_sub_basic(ctx, username, domain,
 754                                          lp_logon_script()),
 755                         PDB_DEFAULT );
 756         }
 757
 758         profile_path = smbldap_talloc_single_attribute(
 759                         ldap_state->smbldap_state->ldap_struct,
 760                         entry,
 761                         get_userattr_key2string(ldap_state->schema_ver,
 762                                 LDAP_ATTR_PROFILE_PATH),
 763                         ctx);
 764         if (profile_path) {
 765                 if (expand_explicit) {
 766                         profile_path = talloc_sub_basic(ctx,
 767                                                 username,
 768                                                 domain,
 769                                                 profile_path);
 770                         if (!profile_path) {
 771                                 goto fn_exit;
 772                         }
 773                 }
 774                 pdb_set_profile_path(sampass, profile_path, PDB_SET);
 775         } else {
 776                 pdb_set_profile_path(sampass,
 777                         talloc_sub_basic(ctx, username, domain,
 778                                           lp_logon_path()),
 779                         PDB_DEFAULT );
 780         }
 781
 782         acct_desc = smbldap_talloc_single_attribute(
 783                         ldap_state->smbldap_state->ldap_struct,
 784                         entry,
 785                         get_userattr_key2string(ldap_state->schema_ver,
 786                                 LDAP_ATTR_DESC),
 787                         ctx);
 788         if (acct_desc) {
 789                 pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
 790         }
 791
 792         workstations = smbldap_talloc_single_attribute(
 793                         ldap_state->smbldap_state->ldap_struct,
 794                         entry,
 795                         get_userattr_key2string(ldap_state->schema_ver,
 796                                 LDAP_ATTR_USER_WKS),
 797                         ctx);
 798         if (workstations) {
 799                 pdb_set_workstations(sampass, workstations, PDB_SET);
 800         }
 801
 802         munged_dial = smbldap_talloc_single_attribute(
 803                         ldap_state->smbldap_state->ldap_struct,
 804                         entry,
 805                         get_userattr_key2string(ldap_state->schema_ver,
 806                                 LDAP_ATTR_MUNGED_DIAL),
 807                         ctx);
 808         if (munged_dial) {
 809                 pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
 810         }
 811
 812         /* FIXME: hours stuff should be cleaner */
 813
 814         logon_divs = 168;
 815         hours_len = 21;
 816         memset(hours, 0xff, hours_len);
 817
 818         if (ldap_state->is_nds_ldap) {
 819                 char *user_dn;
 820                 size_t pwd_len;
 821                 char clear_text_pw[512];
 822
 823                 /* Make call to Novell eDirectory ldap extension to get clear text password.
 824                         NOTE: This will only work if we have an SSL connection to eDirectory. */
 825                 user_dn = smbldap_talloc_dn(ctx, ldap_state->smbldap_state->ldap_struct, entry);
 826                 if (user_dn != NULL) {
 827                         DEBUG(3, ("init_sam_from_ldap: smbldap_talloc_dn(ctx, %s) returned '%s'\n", username, user_dn));
 828
 829                         pwd_len = sizeof(clear_text_pw);
 830                         if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
 831                                 nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
 832                                 if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 833                                         TALLOC_FREE(user_dn);
 834                                         return False;
 835                                 }
 836                                 ZERO_STRUCT(smblmpwd);
 837                                 if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 838                                         TALLOC_FREE(user_dn);
 839                                         return False;
 840                                 }
 841                                 ZERO_STRUCT(smbntpwd);
 842                                 use_samba_attrs = False;
 843                         }
 844
 845                         TALLOC_FREE(user_dn);
 846
 847                 } else {
 848                         DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
 849                 }
 850         }
 851
 852         if (use_samba_attrs) {
 853                 temp = smbldap_talloc_single_attribute(
 854                                 ldap_state->smbldap_state->ldap_struct,
 855                                 entry,
 856                                 get_userattr_key2string(ldap_state->schema_ver,
 857                                         LDAP_ATTR_LMPW),
 858                                 ctx);
 859                 if (temp) {
 860                         pdb_gethexpwd(temp, smblmpwd);
 861                         memset((char *)temp, '\0', strlen(temp)+1);
 862                         if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
 863                                 goto fn_exit;
 864                         }
 865                         ZERO_STRUCT(smblmpwd);
 866                 }
 867
 868                 temp = smbldap_talloc_single_attribute(
 869                                 ldap_state->smbldap_state->ldap_struct,
 870                                 entry,
 871                                 get_userattr_key2string(ldap_state->schema_ver,
 872                                         LDAP_ATTR_NTPW),
 873                                 ctx);
 874                 if (temp) {
 875                         pdb_gethexpwd(temp, smbntpwd);
 876                         memset((char *)temp, '\0', strlen(temp)+1);
 877                         if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
 878                                 goto fn_exit;
 879                         }
 880                         ZERO_STRUCT(smbntpwd);
 881                 }
 882         }
 883
 884         pwHistLen = 0;
 885
 886         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
 887         if (pwHistLen > 0){
 888                 uint8 *pwhist = NULL;
 889                 int i;
 890                 char *history_string = talloc_array(ctx, char,
 891                                                 MAX_PW_HISTORY_LEN*64);
 892
 893                 if (!history_string) {
 894                         goto fn_exit;
 895                 }
 896
 897                 pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
 898
 899                 pwhist = talloc_array(ctx, uint8,
 900                                       pwHistLen * PW_HISTORY_ENTRY_LEN);
 901                 if (pwhist == NULL) {
 902                         DEBUG(0, ("init_sam_from_ldap: talloc failed!\n"));
 903                         goto fn_exit;
 904                 }
 905                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 906
 907                 if (smbldap_get_single_attribute(
 908                                 ldap_state->smbldap_state->ldap_struct,
 909                                 entry,
 910                                 get_userattr_key2string(ldap_state->schema_ver,
 911                                         LDAP_ATTR_PWD_HISTORY),
 912                                 history_string,
 913                                 MAX_PW_HISTORY_LEN*64)) {
 914                         bool hex_failed = false;
 915                         for (i = 0; i < pwHistLen; i++){
 916                                 /* Get the 16 byte salt. */
 917                                 if (!pdb_gethexpwd(&history_string[i*64],
 918                                         &pwhist[i*PW_HISTORY_ENTRY_LEN])) {
 919                                         hex_failed = true;
 920                                         break;
 921                                 }
 922                                 /* Get the 16 byte MD5 hash of salt+passwd. */
 923                                 if (!pdb_gethexpwd(&history_string[(i*64)+32],
 924                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+
 925                                                 PW_HISTORY_SALT_LEN])) {
 926                                         hex_failed = True;
 927                                         break;
 928                                 }
 929                         }
 930                         if (hex_failed) {
 931                                 DEBUG(2,("init_sam_from_ldap: Failed to get password history for user %s\n",
 932                                         username));
 933                                 memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
 934                         }
 935                 }
 936                 if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
 937                         goto fn_exit;
 938                 }
 939         }
 940
 941         temp = smbldap_talloc_single_attribute(
 942                         ldap_state->smbldap_state->ldap_struct,
 943                         entry,
 944                         get_userattr_key2string(ldap_state->schema_ver,
 945                                 LDAP_ATTR_ACB_INFO),
 946                         ctx);
 947         if (temp) {
 948                 acct_ctrl = pdb_decode_acct_ctrl(temp);
 949
 950                 if (acct_ctrl == 0) {
 951                         acct_ctrl |= ACB_NORMAL;
 952                 }
 953
 954                 pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
 955         } else {
 956                 acct_ctrl |= ACB_NORMAL;
 957         }
 958
 959         pdb_set_hours_len(sampass, hours_len, PDB_SET);
 960         pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
 961
 962         temp = smbldap_talloc_single_attribute(
 963                         ldap_state->smbldap_state->ldap_struct,
 964                         entry,
 965                         get_userattr_key2string(ldap_state->schema_ver,
 966                                 LDAP_ATTR_BAD_PASSWORD_COUNT),
 967                         ctx);
 968         if (temp) {
 969                 bad_password_count = (uint32_t) atol(temp);
 970                 pdb_set_bad_password_count(sampass,
 971                                 bad_password_count, PDB_SET);
 972         }
 973
 974         temp = smbldap_talloc_single_attribute(
 975                         ldap_state->smbldap_state->ldap_struct,
 976                         entry,
 977                         get_userattr_key2string(ldap_state->schema_ver,
 978                                 LDAP_ATTR_BAD_PASSWORD_TIME),
 979                         ctx);
 980         if (temp) {
 981                 bad_password_time = (time_t) atol(temp);
 982                 pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
 983         }
 984
 985
 986         temp = smbldap_talloc_single_attribute(
 987                         ldap_state->smbldap_state->ldap_struct,
 988                         entry,
 989                         get_userattr_key2string(ldap_state->schema_ver,
 990                                 LDAP_ATTR_LOGON_COUNT),
 991                         ctx);
 992         if (temp) {
 993                 logon_count = (uint32_t) atol(temp);
 994                 pdb_set_logon_count(sampass, logon_count, PDB_SET);
 995         }
 996
 997         /* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
 998
 999         temp = smbldap_talloc_single_attribute(
1000                         ldap_state->smbldap_state->ldap_struct,
1001                         entry,
1002                         get_userattr_key2string(ldap_state->schema_ver,
1003                                 LDAP_ATTR_LOGON_HOURS),
1004                         ctx);
1005         if (temp) {
1006                 pdb_gethexhours(temp, hours);
1007                 memset((char *)temp, '\0', strlen(temp) +1);
1008                 pdb_set_hours(sampass, hours, hours_len, PDB_SET);
1009                 ZERO_STRUCT(hours);
1010         }
1011
1012         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
1013                 struct passwd unix_pw;
1014                 bool have_uid = false;
1015                 bool have_gid = false;
1016                 struct dom_sid mapped_gsid;
1017                 const struct dom_sid *primary_gsid;
1018
1019                 ZERO_STRUCT(unix_pw);
1020
1021                 unix_pw.pw_name = username;
1022                 unix_pw.pw_passwd = discard_const_p(char, "x");
1023
1024                 temp = smbldap_talloc_single_attribute(
1025                                 priv2ld(ldap_state),
1026                                 entry,
1027                                 "uidNumber",
1028                                 ctx);
1029                 if (temp) {
1030                         /* We've got a uid, feed the cache */
1031                         unix_pw.pw_uid = strtoul(temp, NULL, 10);
1032                         have_uid = true;
1033                 }
1034                 temp = smbldap_talloc_single_attribute(
1035                                 priv2ld(ldap_state),
1036                                 entry,
1037                                 "gidNumber",
1038                                 ctx);
1039                 if (temp) {
1040                         /* We've got a uid, feed the cache */
1041                         unix_pw.pw_gid = strtoul(temp, NULL, 10);
1042                         have_gid = true;
1043                 }
1044                 unix_pw.pw_gecos = smbldap_talloc_single_attribute(
1045                                 priv2ld(ldap_state),
1046                                 entry,
1047                                 "gecos",
1048                                 ctx);
1049                 if (unix_pw.pw_gecos) {
1050                         unix_pw.pw_gecos = fullname;
1051                 }
1052                 unix_pw.pw_dir = smbldap_talloc_single_attribute(
1053                                 priv2ld(ldap_state),
1054                                 entry,
1055                                 "homeDirectory",
1056                                 ctx);
1057                 if (unix_pw.pw_dir) {
1058                         unix_pw.pw_dir = discard_const_p(char, "");
1059                 }
1060                 unix_pw.pw_shell = smbldap_talloc_single_attribute(
1061                                 priv2ld(ldap_state),
1062                                 entry,
1063                                 "loginShell",
1064                                 ctx);
1065                 if (unix_pw.pw_shell) {
1066                         unix_pw.pw_shell = discard_const_p(char, "");
1067                 }
1068
1069                 if (have_uid && have_gid) {
1070                         sampass->unix_pw = tcopy_passwd(sampass, &unix_pw);
1071                 } else {
1072                         sampass->unix_pw = Get_Pwnam_alloc(sampass, unix_pw.pw_name);
1073                 }
1074
1075                 if (sampass->unix_pw == NULL) {
1076                         DEBUG(0,("init_sam_from_ldap: Failed to find Unix account for %s\n",
1077                                  pdb_get_username(sampass)));
1078                         goto fn_exit;
1079                 }
1080
1081                 store_uid_sid_cache(pdb_get_user_sid(sampass),
1082                                     sampass->unix_pw->pw_uid);
1083                 idmap_cache_set_sid2uid(pdb_get_user_sid(sampass),
1084                                         sampass->unix_pw->pw_uid);
1085
1086                 gid_to_sid(&mapped_gsid, sampass->unix_pw->pw_gid);
1087                 primary_gsid = pdb_get_group_sid(sampass);
1088                 if (primary_gsid && dom_sid_equal(primary_gsid, &mapped_gsid)) {
1089                         store_gid_sid_cache(primary_gsid,
1090                                             sampass->unix_pw->pw_gid);
1091                         idmap_cache_set_sid2gid(primary_gsid,
1092                                                 sampass->unix_pw->pw_gid);
1093                 }
1094         }
1095
1096         /* check the timestamp of the cache vs ldap entry */
1097         if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
1098                                                             entry))) {
1099                 ret = true;
1100                 goto fn_exit;
1101         }
1102
1103         /* see if we have newer updates */
1104         if (!login_cache_read(sampass, &cache_entry)) {
1105                 DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
1106                            (unsigned int)pdb_get_bad_password_count(sampass),
1107                            (unsigned int)pdb_get_bad_password_time(sampass)));
1108                 ret = true;
1109                 goto fn_exit;
1110         }
1111
1112         DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
1113                   (unsigned int)ldap_entry_time,
1114                   (unsigned int)cache_entry.entry_timestamp,
1115                   (unsigned int)cache_entry.bad_password_time));
1116
1117         if (ldap_entry_time > cache_entry.entry_timestamp) {
1118                 /* cache is older than directory , so
1119                    we need to delete the entry but allow the
1120                    fields to be written out */
1121                 login_cache_delentry(sampass);
1122         } else {
1123                 /* read cache in */
1124                 pdb_set_acct_ctrl(sampass,
1125                                   pdb_get_acct_ctrl(sampass) |
1126                                   (cache_entry.acct_ctrl & ACB_AUTOLOCK),
1127                                   PDB_SET);
1128                 pdb_set_bad_password_count(sampass,
1129                                            cache_entry.bad_password_count,
1130                                            PDB_SET);
1131                 pdb_set_bad_password_time(sampass,
1132                                           cache_entry.bad_password_time,
1133                                           PDB_SET);
1134         }
1135
1136         ret = true;
1137
1138   fn_exit:
1139
1140         TALLOC_FREE(ctx);
1141         return ret;
1142 }
1143
1144 /**********************************************************************
1145  Initialize the ldap db from a struct samu. Called on update.
1146  (Based on init_buffer_from_sam in pdb_tdb.c)
1147 *********************************************************************/
1148
1149 static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
1150                                 LDAPMessage *existing,
1151                                 LDAPMod *** mods, struct samu * sampass,
1152                                 bool (*need_update)(const struct samu *,
1153                                                     enum pdb_elements))
1154 {
1155         char *temp = NULL;
1156         uint32_t rid;
1157
1158         if (mods == NULL || sampass == NULL) {
1159                 DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
1160                 return False;
1161         }
1162
1163         *mods = NULL;
1164
1165         /*
1166          * took out adding "objectclass: sambaAccount"
1167          * do this on a per-mod basis
1168          */
1169         if (need_update(sampass, PDB_USERNAME)) {
1170                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1171                               "uid", pdb_get_username(sampass));
1172                 if (ldap_state->is_nds_ldap) {
1173                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1174                                       "cn", pdb_get_username(sampass));
1175                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1176                                       "sn", pdb_get_username(sampass));
1177                 }
1178         }
1179
1180         DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
1181
1182         /* only update the RID if we actually need to */
1183         if (need_update(sampass, PDB_USERSID)) {
1184                 fstring sid_string;
1185                 const struct dom_sid *user_sid = pdb_get_user_sid(sampass);
1186
1187                 switch ( ldap_state->schema_ver ) {
1188                         case SCHEMAVER_SAMBAACCOUNT:
1189                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
1190                                         DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1191                                                   sid_string_dbg(user_sid),
1192                                                   sid_string_dbg(
1193                                                           &ldap_state->domain_sid)));
1194                                         return False;
1195                                 }
1196                                 if (asprintf(&temp, "%i", rid) < 0) {
1197                                         return false;
1198                                 }
1199                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1200                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
1201                                         temp);
1202                                 SAFE_FREE(temp);
1203                                 break;
1204
1205                         case SCHEMAVER_SAMBASAMACCOUNT:
1206                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1207                                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
1208                                         sid_to_fstring(sid_string, user_sid));
1209                                 break;
1210
1211                         default:
1212                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1213                                 break;
1214                 }
1215         }
1216
1217         /* we don't need to store the primary group RID - so leaving it
1218            'free' to hang off the unix primary group makes life easier */
1219
1220         if (need_update(sampass, PDB_GROUPSID)) {
1221                 fstring sid_string;
1222                 const struct dom_sid *group_sid = pdb_get_group_sid(sampass);
1223
1224                 switch ( ldap_state->schema_ver ) {
1225                         case SCHEMAVER_SAMBAACCOUNT:
1226                                 if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
1227                                         DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
1228                                                   sid_string_dbg(group_sid),
1229                                                   sid_string_dbg(
1230                                                           &ldap_state->domain_sid)));
1231                                         return False;
1232                                 }
1233
1234                                 if (asprintf(&temp, "%i", rid) < 0) {
1235                                         return false;
1236                                 }
1237                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1238                                         get_userattr_key2string(ldap_state->schema_ver,
1239                                         LDAP_ATTR_PRIMARY_GROUP_RID), temp);
1240                                 SAFE_FREE(temp);
1241                                 break;
1242
1243                         case SCHEMAVER_SAMBASAMACCOUNT:
1244                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1245                                         get_userattr_key2string(ldap_state->schema_ver,
1246                                         LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_fstring(sid_string, group_sid));
1247                                 break;
1248
1249                         default:
1250                                 DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
1251                                 break;
1252                 }
1253
1254         }
1255
1256         /* displayName, cn, and gecos should all be the same
1257          *  most easily accomplished by giving them the same OID
1258          *  gecos isn't set here b/c it should be handled by the
1259          *  add-user script
1260          *  We change displayName only and fall back to cn if
1261          *  it does not exist.
1262          */
1263
1264         if (need_update(sampass, PDB_FULLNAME))
1265                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1266                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
1267                         pdb_get_fullname(sampass));
1268
1269         if (need_update(sampass, PDB_ACCTDESC))
1270                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1271                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
1272                         pdb_get_acct_desc(sampass));
1273
1274         if (need_update(sampass, PDB_WORKSTATIONS))
1275                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1276                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
1277                         pdb_get_workstations(sampass));
1278
1279         if (need_update(sampass, PDB_MUNGEDDIAL))
1280                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1281                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
1282                         pdb_get_munged_dial(sampass));
1283
1284         if (need_update(sampass, PDB_SMBHOME))
1285                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1286                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
1287                         pdb_get_homedir(sampass));
1288
1289         if (need_update(sampass, PDB_DRIVE))
1290                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1291                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
1292                         pdb_get_dir_drive(sampass));
1293
1294         if (need_update(sampass, PDB_LOGONSCRIPT))
1295                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1296                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
1297                         pdb_get_logon_script(sampass));
1298
1299         if (need_update(sampass, PDB_PROFILE))
1300                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1301                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
1302                         pdb_get_profile_path(sampass));
1303
1304         if (asprintf(&temp, "%li", (long int)pdb_get_logon_time(sampass)) < 0) {
1305                 return false;
1306         }
1307         if (need_update(sampass, PDB_LOGONTIME))
1308                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1309                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
1310         SAFE_FREE(temp);
1311
1312         if (asprintf(&temp, "%li", (long int)pdb_get_logoff_time(sampass)) < 0) {
1313                 return false;
1314         }
1315         if (need_update(sampass, PDB_LOGOFFTIME))
1316                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1317                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
1318         SAFE_FREE(temp);
1319
1320         if (asprintf(&temp, "%li", (long int)pdb_get_kickoff_time(sampass)) < 0) {
1321                 return false;
1322         }
1323         if (need_update(sampass, PDB_KICKOFFTIME))
1324                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1325                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
1326         SAFE_FREE(temp);
1327
1328         if (asprintf(&temp, "%li", (long int)pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
1329                 return false;
1330         }
1331         if (need_update(sampass, PDB_CANCHANGETIME))
1332                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1333                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
1334         SAFE_FREE(temp);
1335
1336         if (asprintf(&temp, "%li", (long int)pdb_get_pass_must_change_time(sampass)) < 0) {
1337                 return false;
1338         }
1339         if (need_update(sampass, PDB_MUSTCHANGETIME))
1340                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1341                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp);
1342         SAFE_FREE(temp);
1343
1344         if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
1345                         || (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
1346
1347                 if (need_update(sampass, PDB_LMPASSWD)) {
1348                         const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
1349                         if (lm_pw) {
1350                                 char pwstr[34];
1351                                 pdb_sethexpwd(pwstr, lm_pw,
1352                                               pdb_get_acct_ctrl(sampass));
1353                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1354                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1355                                                  pwstr);
1356                         } else {
1357                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1358                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
1359                                                  NULL);
1360                         }
1361                 }
1362                 if (need_update(sampass, PDB_NTPASSWD)) {
1363                         const uchar *nt_pw = pdb_get_nt_passwd(sampass);
1364                         if (nt_pw) {
1365                                 char pwstr[34];
1366                                 pdb_sethexpwd(pwstr, nt_pw,
1367                                               pdb_get_acct_ctrl(sampass));
1368                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1369                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1370                                                  pwstr);
1371                         } else {
1372                                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1373                                                  get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
1374                                                  NULL);
1375                         }
1376                 }
1377
1378                 if (need_update(sampass, PDB_PWHISTORY)) {
1379                         char *pwstr = NULL;
1380                         uint32_t pwHistLen = 0;
1381                         pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
1382
1383                         pwstr = SMB_MALLOC_ARRAY(char, 1024);
1384                         if (!pwstr) {
1385                                 return false;
1386                         }
1387                         if (pwHistLen == 0) {
1388                                 /* Remove any password history from the LDAP store. */
1389                                 memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
1390                                 pwstr[64] = '\0';
1391                         } else {
1392                                 int i;
1393                                 uint32_t currHistLen = 0;
1394                                 const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
1395                                 if (pwhist != NULL) {
1396                                         /* We can only store (1024-1/64 password history entries. */
1397                                         pwHistLen = MIN(pwHistLen, ((1024-1)/64));
1398                                         for (i=0; i< pwHistLen && i < currHistLen; i++) {
1399                                                 /* Store the salt. */
1400                                                 pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
1401                                                 /* Followed by the md5 hash of salt + md4 hash */
1402                                                 pdb_sethexpwd(&pwstr[(i*64)+32],
1403                                                         &pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
1404                                                 DEBUG(100, ("pwstr=%s\n", pwstr));
1405                                         }
1406                                 }
1407                         }
1408                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1409                                          get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
1410                                          pwstr);
1411                         SAFE_FREE(pwstr);
1412                 }
1413
1414                 if (need_update(sampass, PDB_PASSLASTSET)) {
1415                         if (asprintf(&temp, "%li",
1416                                 (long int)pdb_get_pass_last_set_time(sampass)) < 0) {
1417                                 return false;
1418                         }
1419                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1420                                 get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
1421                                 temp);
1422                         SAFE_FREE(temp);
1423                 }
1424         }
1425
1426         if (need_update(sampass, PDB_HOURS)) {
1427                 const uint8 *hours = pdb_get_hours(sampass);
1428                 if (hours) {
1429                         char hourstr[44];
1430                         pdb_sethexhours(hourstr, hours);
1431                         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
1432                                 existing,
1433                                 mods,
1434                                 get_userattr_key2string(ldap_state->schema_ver,
1435                                                 LDAP_ATTR_LOGON_HOURS),
1436                                 hourstr);
1437                 }
1438         }
1439
1440         if (need_update(sampass, PDB_ACCTCTRL))
1441                 smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
1442                         get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
1443                         pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
1444
1445         /* password lockout cache:
1446            - If we are now autolocking or clearing, we write to ldap
1447            - If we are clearing, we delete the cache entry
1448            - If the count is > 0, we update the cache
1449
1450            This even means when autolocking, we cache, just in case the
1451            update doesn't work, and we have to cache the autolock flag */
1452
1453         if (need_update(sampass, PDB_BAD_PASSWORD_COUNT))  /* &&
1454             need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
1455                 uint16_t badcount = pdb_get_bad_password_count(sampass);
1456                 time_t badtime = pdb_get_bad_password_time(sampass);
1457                 uint32_t pol;
1458                 pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &pol);
1459
1460                 DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
1461                         (unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
1462
1463                 if ((badcount >= pol) || (badcount == 0)) {
1464                         DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
1465                                 (unsigned int)badcount, (unsigned int)badtime));
1466                         if (asprintf(&temp, "%li", (long)badcount) < 0) {
1467                                 return false;
1468                         }
1469                         smbldap_make_mod(
1470                                 ldap_state->smbldap_state->ldap_struct,
1471                                 existing, mods,
1472                                 get_userattr_key2string(
1473                                         ldap_state->schema_ver,
1474                                         LDAP_ATTR_BAD_PASSWORD_COUNT),
1475                                 temp);
1476                         SAFE_FREE(temp);
1477
1478                         if (asprintf(&temp, "%li", (long int)badtime) < 0) {
1479                                 return false;
1480                         }
1481                         smbldap_make_mod(
1482                                 ldap_state->smbldap_state->ldap_struct,
1483                                 existing, mods,
1484                                 get_userattr_key2string(
1485                                         ldap_state->schema_ver,
1486                                         LDAP_ATTR_BAD_PASSWORD_TIME),
1487                                 temp);
1488                         SAFE_FREE(temp);
1489                 }
1490                 if (badcount == 0) {
1491                         DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
1492                         login_cache_delentry(sampass);
1493                 } else {
1494                         struct login_cache cache_entry;
1495
1496                         cache_entry.entry_timestamp = time(NULL);
1497                         cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
1498                         cache_entry.bad_password_count = badcount;
1499                         cache_entry.bad_password_time = badtime;
1500
1501                         DEBUG(7, ("Updating bad password count and time in login cache\n"));
1502                         login_cache_write(sampass, &cache_entry);
1503                 }
1504         }
1505
1506         return True;
1507 }
1508
1509 /**********************************************************************
1510  End enumeration of the LDAP password list.
1511 *********************************************************************/
1512
1513 static void ldapsam_endsampwent(struct pdb_methods *my_methods)
1514 {
1515         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1516         if (ldap_state->result) {
1517                 ldap_msgfree(ldap_state->result);
1518                 ldap_state->result = NULL;
1519         }
1520 }
1521
1522 static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
1523                         const char *new_attr)
1524 {
1525         int i;
1526
1527         if (new_attr == NULL) {
1528                 return;
1529         }
1530
1531         for (i=0; (*attr_list)[i] != NULL; i++) {
1532                 ;
1533         }
1534
1535         (*attr_list) = talloc_realloc(mem_ctx, (*attr_list),
1536                                             const char *,  i+2);
1537         SMB_ASSERT((*attr_list) != NULL);
1538         (*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
1539         (*attr_list)[i+1] = NULL;
1540 }
1541
1542 static void ldapsam_add_unix_attributes(TALLOC_CTX *mem_ctx,
1543                                         const char ***attr_list)
1544 {
1545         append_attr(mem_ctx, attr_list, "uidNumber");
1546         append_attr(mem_ctx, attr_list, "gidNumber");
1547         append_attr(mem_ctx, attr_list, "homeDirectory");
1548         append_attr(mem_ctx, attr_list, "loginShell");
1549         append_attr(mem_ctx, attr_list, "gecos");
1550 }
1551
1552 /**********************************************************************
1553 Get struct samu entry from LDAP by username.
1554 *********************************************************************/
1555
1556 static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
1557 {
1558         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1559         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1560         LDAPMessage *result = NULL;
1561         LDAPMessage *entry = NULL;
1562         int count;
1563         const char ** attr_list;
1564         int rc;
1565
1566         attr_list = get_userattr_list( user, ldap_state->schema_ver );
1567         append_attr(user, &attr_list,
1568                     get_userattr_key2string(ldap_state->schema_ver,
1569                                             LDAP_ATTR_MOD_TIMESTAMP));
1570         ldapsam_add_unix_attributes(user, &attr_list);
1571         rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
1572                                            attr_list);
1573         TALLOC_FREE( attr_list );
1574
1575         if ( rc != LDAP_SUCCESS )
1576                 return NT_STATUS_NO_SUCH_USER;
1577
1578         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1579
1580         if (count < 1) {
1581                 DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
1582                 ldap_msgfree(result);
1583                 return NT_STATUS_NO_SUCH_USER;
1584         } else if (count > 1) {
1585                 DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
1586                 ldap_msgfree(result);
1587                 return NT_STATUS_NO_SUCH_USER;
1588         }
1589
1590         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1591         if (entry) {
1592                 if (!init_sam_from_ldap(ldap_state, user, entry)) {
1593                         DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
1594                         ldap_msgfree(result);
1595                         return NT_STATUS_NO_SUCH_USER;
1596                 }
1597                 pdb_set_backend_private_data(user, result, NULL,
1598                                              my_methods, PDB_CHANGED);
1599                 talloc_autofree_ldapmsg(user, result);
1600                 ret = NT_STATUS_OK;
1601         } else {
1602                 ldap_msgfree(result);
1603         }
1604         return ret;
1605 }
1606
1607 static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
1608                                    const struct dom_sid *sid, LDAPMessage **result)
1609 {
1610         int rc = -1;
1611         const char ** attr_list;
1612         uint32_t rid;
1613
1614         switch ( ldap_state->schema_ver ) {
1615                 case SCHEMAVER_SAMBASAMACCOUNT: {
1616                         TALLOC_CTX *tmp_ctx = talloc_new(NULL);
1617                         if (tmp_ctx == NULL) {
1618                                 return LDAP_NO_MEMORY;
1619                         }
1620
1621                         attr_list = get_userattr_list(tmp_ctx,
1622                                                       ldap_state->schema_ver);
1623                         append_attr(tmp_ctx, &attr_list,
1624                                     get_userattr_key2string(
1625                                             ldap_state->schema_ver,
1626                                             LDAP_ATTR_MOD_TIMESTAMP));
1627                         ldapsam_add_unix_attributes(tmp_ctx, &attr_list);
1628                         rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
1629                                                           result, attr_list);
1630                         TALLOC_FREE(tmp_ctx);
1631
1632                         if ( rc != LDAP_SUCCESS )
1633                                 return rc;
1634                         break;
1635                 }
1636
1637                 case SCHEMAVER_SAMBAACCOUNT:
1638                         if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
1639                                 return rc;
1640                         }
1641
1642                         attr_list = get_userattr_list(NULL,
1643                                                       ldap_state->schema_ver);
1644                         rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
1645                         TALLOC_FREE( attr_list );
1646
1647                         if ( rc != LDAP_SUCCESS )
1648                                 return rc;
1649                         break;
1650         }
1651         return rc;
1652 }
1653
1654 /**********************************************************************
1655  Get struct samu entry from LDAP by SID.
1656 *********************************************************************/
1657
1658 static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
1659 {
1660         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1661         LDAPMessage *result = NULL;
1662         LDAPMessage *entry = NULL;
1663         int count;
1664         int rc;
1665
1666         rc = ldapsam_get_ldap_user_by_sid(ldap_state,
1667                                           sid, &result);
1668         if (rc != LDAP_SUCCESS)
1669                 return NT_STATUS_NO_SUCH_USER;
1670
1671         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
1672
1673         if (count < 1) {
1674                 DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
1675                           "count=%d\n", sid_string_dbg(sid), count));
1676                 ldap_msgfree(result);
1677                 return NT_STATUS_NO_SUCH_USER;
1678         }  else if (count > 1) {
1679                 DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
1680                           "[%s]. Failing. count=%d\n", sid_string_dbg(sid),
1681                           count));
1682                 ldap_msgfree(result);
1683                 return NT_STATUS_NO_SUCH_USER;
1684         }
1685
1686         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1687         if (!entry) {
1688                 ldap_msgfree(result);
1689                 return NT_STATUS_NO_SUCH_USER;
1690         }
1691
1692         if (!init_sam_from_ldap(ldap_state, user, entry)) {
1693                 DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
1694                 ldap_msgfree(result);
1695                 return NT_STATUS_NO_SUCH_USER;
1696         }
1697
1698         pdb_set_backend_private_data(user, result, NULL,
1699                                      my_methods, PDB_CHANGED);
1700         talloc_autofree_ldapmsg(user, result);
1701         return NT_STATUS_OK;
1702 }
1703
1704 /********************************************************************
1705  Do the actual modification - also change a plaintext passord if
1706  it it set.
1707 **********************************************************************/
1708
1709 static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
1710                                      struct samu *newpwd, char *dn,
1711                                      LDAPMod **mods, int ldap_op,
1712                                      bool (*need_update)(const struct samu *, enum pdb_elements))
1713 {
1714         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1715         int rc;
1716
1717         if (!newpwd || !dn) {
1718                 return NT_STATUS_INVALID_PARAMETER;
1719         }
1720
1721         if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
1722                         (lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
1723                         need_update(newpwd, PDB_PLAINTEXT_PW) &&
1724                         (pdb_get_plaintext_passwd(newpwd)!=NULL)) {
1725                 BerElement *ber;
1726                 struct berval *bv;
1727                 char *retoid = NULL;
1728                 struct berval *retdata = NULL;
1729                 char *utf8_password;
1730                 char *utf8_dn;
1731                 size_t converted_size;
1732                 int ret;
1733
1734                 if (!ldap_state->is_nds_ldap) {
1735
1736                         if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
1737                                                    LDAP_EXOP_MODIFY_PASSWD)) {
1738                                 DEBUG(2, ("ldap password change requested, but LDAP "
1739                                           "server does not support it -- ignoring\n"));
1740                                 return NT_STATUS_OK;
1741                         }
1742                 }
1743
1744                 if (!push_utf8_talloc(talloc_tos(), &utf8_password,
1745                                         pdb_get_plaintext_passwd(newpwd),
1746                                         &converted_size))
1747                 {
1748                         return NT_STATUS_NO_MEMORY;
1749                 }
1750
1751                 if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
1752                         TALLOC_FREE(utf8_password);
1753                         return NT_STATUS_NO_MEMORY;
1754                 }
1755
1756                 if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
1757                         DEBUG(0,("ber_alloc_t returns NULL\n"));
1758                         TALLOC_FREE(utf8_password);
1759                         TALLOC_FREE(utf8_dn);
1760                         return NT_STATUS_UNSUCCESSFUL;
1761                 }
1762
1763                 if ((ber_printf (ber, "{") < 0) ||
1764                     (ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID,
1765                                  utf8_dn) < 0)) {
1766                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1767                                  "value <0\n"));
1768                         ber_free(ber,1);
1769                         TALLOC_FREE(utf8_dn);
1770                         TALLOC_FREE(utf8_password);
1771                         return NT_STATUS_UNSUCCESSFUL;
1772                 }
1773
1774                 if ((utf8_password != NULL) && (*utf8_password != '\0')) {
1775                         ret = ber_printf(ber, "ts}",
1776                                          LDAP_TAG_EXOP_MODIFY_PASSWD_NEW,
1777                                          utf8_password);
1778                 } else {
1779                         ret = ber_printf(ber, "}");
1780                 }
1781
1782                 if (ret < 0) {
1783                         DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
1784                                  "value <0\n"));
1785                         ber_free(ber,1);
1786                         TALLOC_FREE(utf8_dn);
1787                         TALLOC_FREE(utf8_password);
1788                         return NT_STATUS_UNSUCCESSFUL;
1789                 }
1790
1791                 if ((rc = ber_flatten (ber, &bv))<0) {
1792                         DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
1793                         ber_free(ber,1);
1794                         TALLOC_FREE(utf8_dn);
1795                         TALLOC_FREE(utf8_password);
1796                         return NT_STATUS_UNSUCCESSFUL;
1797                 }
1798
1799                 TALLOC_FREE(utf8_dn);
1800                 TALLOC_FREE(utf8_password);
1801                 ber_free(ber, 1);
1802
1803                 if (!ldap_state->is_nds_ldap) {
1804                         rc = smbldap_extended_operation(ldap_state->smbldap_state,
1805                                                         LDAP_EXOP_MODIFY_PASSWD,
1806                                                         bv, NULL, NULL, &retoid,
1807                                                         &retdata);
1808                 } else {
1809                         rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
1810                                                         pdb_get_plaintext_passwd(newpwd));
1811                 }
1812                 if (rc != LDAP_SUCCESS) {
1813                         char *ld_error = NULL;
1814
1815                         if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
1816                                 DEBUG(3, ("Could not set userPassword "
1817                                           "attribute due to an objectClass "
1818                                           "violation -- ignoring\n"));
1819                                 ber_bvfree(bv);
1820                                 return NT_STATUS_OK;
1821                         }
1822
1823                         ldap_get_option(ldap_state->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING,
1824                                         &ld_error);
1825                         DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
1826                                 pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
1827                         SAFE_FREE(ld_error);
1828                         ber_bvfree(bv);
1829 #if defined(LDAP_CONSTRAINT_VIOLATION)
1830                         if (rc == LDAP_CONSTRAINT_VIOLATION)
1831                                 return NT_STATUS_PASSWORD_RESTRICTION;
1832 #endif
1833                         return NT_STATUS_UNSUCCESSFUL;
1834                 } else {
1835                         DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
1836 #ifdef DEBUG_PASSWORD
1837                         DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
1838 #endif
1839                         if (retdata)
1840                                 ber_bvfree(retdata);
1841                         if (retoid)
1842                                 ldap_memfree(retoid);
1843                 }
1844                 ber_bvfree(bv);
1845         }
1846
1847         if (!mods) {
1848                 DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
1849                 /* may be password change below however */
1850         } else {
1851                 switch(ldap_op) {
1852                         case LDAP_MOD_ADD:
1853                                 if (ldap_state->is_nds_ldap) {
1854                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1855                                                         "objectclass",
1856                                                         "inetOrgPerson");
1857                                 } else {
1858                                         smbldap_set_mod(&mods, LDAP_MOD_ADD,
1859                                                         "objectclass",
1860                                                         LDAP_OBJ_ACCOUNT);
1861                                 }
1862                                 rc = smbldap_add(ldap_state->smbldap_state,
1863                                                  dn, mods);
1864                                 break;
1865                         case LDAP_MOD_REPLACE:
1866                                 rc = smbldap_modify(ldap_state->smbldap_state,
1867                                                     dn ,mods);
1868                                 break;
1869                         default:
1870                                 DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
1871                                          ldap_op));
1872                                 return NT_STATUS_INVALID_PARAMETER;
1873                 }
1874
1875                 if (rc!=LDAP_SUCCESS) {
1876                         return NT_STATUS_UNSUCCESSFUL;
1877                 }
1878         }
1879
1880         return NT_STATUS_OK;
1881 }
1882
1883 /**********************************************************************
1884  Delete entry from LDAP for username.
1885 *********************************************************************/
1886
1887 static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
1888                                            struct samu * sam_acct)
1889 {
1890         struct ldapsam_privates *priv =
1891                 (struct ldapsam_privates *)my_methods->private_data;
1892         const char *sname;
1893         int rc;
1894         LDAPMessage *msg, *entry;
1895         NTSTATUS result = NT_STATUS_NO_MEMORY;
1896         const char **attr_list;
1897         TALLOC_CTX *mem_ctx;
1898
1899         if (!sam_acct) {
1900                 DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
1901                 return NT_STATUS_INVALID_PARAMETER;
1902         }
1903
1904         sname = pdb_get_username(sam_acct);
1905
1906         DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
1907                   "LDAP.\n", sname));
1908
1909         mem_ctx = talloc_new(NULL);
1910         if (mem_ctx == NULL) {
1911                 DEBUG(0, ("talloc_new failed\n"));
1912                 goto done;
1913         }
1914
1915         attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
1916         if (attr_list == NULL) {
1917                 goto done;
1918         }
1919
1920         rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
1921
1922         if ((rc != LDAP_SUCCESS) ||
1923             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
1924             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
1925                 DEBUG(5, ("Could not find user %s\n", sname));
1926                 result = NT_STATUS_NO_SUCH_USER;
1927                 goto done;
1928         }
1929
1930         rc = ldapsam_delete_entry(
1931                 priv, mem_ctx, entry,
1932                 priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
1933                 LDAP_OBJ_SAMBASAMACCOUNT : LDAP_OBJ_SAMBAACCOUNT,
1934                 attr_list);
1935
1936         result = (rc == LDAP_SUCCESS) ?
1937                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
1938
1939  done:
1940         TALLOC_FREE(mem_ctx);
1941         return result;
1942 }
1943
1944 /**********************************************************************
1945  Helper function to determine for update_sam_account whether
1946  we need LDAP modification.
1947 *********************************************************************/
1948
1949 static bool element_is_changed(const struct samu *sampass,
1950                                enum pdb_elements element)
1951 {
1952         return IS_SAM_CHANGED(sampass, element);
1953 }
1954
1955 /**********************************************************************
1956  Update struct samu.
1957 *********************************************************************/
1958
1959 static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
1960 {
1961         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
1962         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
1963         int rc = 0;
1964         char *dn;
1965         LDAPMessage *result = NULL;
1966         LDAPMessage *entry = NULL;
1967         LDAPMod **mods = NULL;
1968         const char **attr_list;
1969
1970         result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
1971         if (!result) {
1972                 attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
1973                 if (pdb_get_username(newpwd) == NULL) {
1974                         return NT_STATUS_INVALID_PARAMETER;
1975                 }
1976                 rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
1977                 TALLOC_FREE( attr_list );
1978                 if (rc != LDAP_SUCCESS) {
1979                         return NT_STATUS_UNSUCCESSFUL;
1980                 }
1981                 pdb_set_backend_private_data(newpwd, result, NULL,
1982                                              my_methods, PDB_CHANGED);
1983                 talloc_autofree_ldapmsg(newpwd, result);
1984         }
1985
1986         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
1987                 DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
1988                 return NT_STATUS_UNSUCCESSFUL;
1989         }
1990
1991         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
1992         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
1993         if (!dn) {
1994                 return NT_STATUS_UNSUCCESSFUL;
1995         }
1996
1997         DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
1998
1999         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2000                                 element_is_changed)) {
2001                 DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
2002                 TALLOC_FREE(dn);
2003                 if (mods != NULL)
2004                         ldap_mods_free(mods,True);
2005                 return NT_STATUS_UNSUCCESSFUL;
2006         }
2007
2008         if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
2009             && (mods == NULL)) {
2010                 DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
2011                          pdb_get_username(newpwd)));
2012                 TALLOC_FREE(dn);
2013                 return NT_STATUS_OK;
2014         }
2015
2016         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
2017
2018         if (mods != NULL) {
2019                 ldap_mods_free(mods,True);
2020         }
2021
2022         TALLOC_FREE(dn);
2023
2024         /*
2025          * We need to set the backend private data to NULL here. For example
2026          * setuserinfo level 25 does a pdb_update_sam_account twice on the
2027          * same one, and with the explicit delete / add logic for attribute
2028          * values the second time we would use the wrong "old" value which
2029          * does not exist in LDAP anymore. Thus the LDAP server would refuse
2030          * the update.
2031          * The existing LDAPMessage is still being auto-freed by the
2032          * destructor.
2033          */
2034         pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
2035                                      PDB_CHANGED);
2036
2037         if (!NT_STATUS_IS_OK(ret)) {
2038                 return ret;
2039         }
2040
2041         DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
2042                   pdb_get_username(newpwd)));
2043         return NT_STATUS_OK;
2044 }
2045
2046 /***************************************************************************
2047  Renames a struct samu
2048  - The "rename user script" has full responsibility for changing everything
2049 ***************************************************************************/
2050
2051 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
2052                                      TALLOC_CTX *tmp_ctx,
2053                                      uint32_t group_rid,
2054                                      uint32_t member_rid);
2055
2056 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2057                                                TALLOC_CTX *mem_ctx,
2058                                                struct samu *user,
2059                                                struct dom_sid **pp_sids,
2060                                                gid_t **pp_gids,
2061                                                uint32_t *p_num_groups);
2062
2063 static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
2064                                            struct samu *old_acct,
2065                                            const char *newname)
2066 {
2067         const char *oldname;
2068         int rc;
2069         char *rename_script = NULL;
2070         fstring oldname_lower, newname_lower;
2071
2072         if (!old_acct) {
2073                 DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
2074                 return NT_STATUS_INVALID_PARAMETER;
2075         }
2076         if (!newname) {
2077                 DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
2078                 return NT_STATUS_INVALID_PARAMETER;
2079         }
2080
2081         oldname = pdb_get_username(old_acct);
2082
2083         /* rename the posix user */
2084         rename_script = SMB_STRDUP(lp_renameuser_script());
2085         if (rename_script == NULL) {
2086                 return NT_STATUS_NO_MEMORY;
2087         }
2088
2089         if (!(*rename_script)) {
2090                 SAFE_FREE(rename_script);
2091                 return NT_STATUS_ACCESS_DENIED;
2092         }
2093
2094         DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
2095                    oldname, newname));
2096
2097         /* We have to allow the account name to end with a '$'.
2098            Also, follow the semantics in _samr_create_user() and lower case the
2099            posix name but preserve the case in passdb */
2100
2101         fstrcpy( oldname_lower, oldname );
2102         strlower_m( oldname_lower );
2103         fstrcpy( newname_lower, newname );
2104         strlower_m( newname_lower );
2105         rename_script = realloc_string_sub2(rename_script,
2106                                         "%unew",
2107                                         newname_lower,
2108                                         true,
2109                                         true);
2110         if (!rename_script) {
2111                 return NT_STATUS_NO_MEMORY;
2112         }
2113         rename_script = realloc_string_sub2(rename_script,
2114                                         "%uold",
2115                                         oldname_lower,
2116                                         true,
2117                                         true);
2118         rc = smbrun(rename_script, NULL);
2119
2120         DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
2121                           rename_script, rc));
2122
2123         SAFE_FREE(rename_script);
2124
2125         if (rc == 0) {
2126                 smb_nscd_flush_user_cache();
2127         }
2128
2129         if (rc)
2130                 return NT_STATUS_UNSUCCESSFUL;
2131
2132         return NT_STATUS_OK;
2133 }
2134
2135 /**********************************************************************
2136  Helper function to determine for update_sam_account whether
2137  we need LDAP modification.
2138  *********************************************************************/
2139
2140 static bool element_is_set_or_changed(const struct samu *sampass,
2141                                       enum pdb_elements element)
2142 {
2143         return (IS_SAM_SET(sampass, element) ||
2144                 IS_SAM_CHANGED(sampass, element));
2145 }
2146
2147 /**********************************************************************
2148  Add struct samu to LDAP.
2149 *********************************************************************/
2150
2151 static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
2152 {
2153         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2154         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
2155         int rc;
2156         LDAPMessage     *result = NULL;
2157         LDAPMessage     *entry  = NULL;
2158         LDAPMod         **mods = NULL;
2159         int             ldap_op = LDAP_MOD_REPLACE;
2160         uint32_t                num_result;
2161         const char      **attr_list;
2162         char *escape_user = NULL;
2163         const char      *username = pdb_get_username(newpwd);
2164         const struct dom_sid    *sid = pdb_get_user_sid(newpwd);
2165         char *filter = NULL;
2166         char *dn = NULL;
2167         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
2168         TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
2169
2170         if (!ctx) {
2171                 return NT_STATUS_NO_MEMORY;
2172         }
2173
2174         if (!username || !*username) {
2175                 DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
2176                 status = NT_STATUS_INVALID_PARAMETER;
2177                 goto fn_exit;
2178         }
2179
2180         /* free this list after the second search or in case we exit on failure */
2181         attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
2182
2183         rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
2184
2185         if (rc != LDAP_SUCCESS) {
2186                 goto fn_exit;
2187         }
2188
2189         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2190                 DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
2191                          username));
2192                 goto fn_exit;
2193         }
2194         ldap_msgfree(result);
2195         result = NULL;
2196
2197         if (element_is_set_or_changed(newpwd, PDB_USERSID)) {
2198                 rc = ldapsam_get_ldap_user_by_sid(ldap_state,
2199                                                   sid, &result);
2200                 if (rc == LDAP_SUCCESS) {
2201                         if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
2202                                 DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
2203                                          "already in the base, with samba "
2204                                          "attributes\n", sid_string_dbg(sid)));
2205                                 goto fn_exit;
2206                         }
2207                         ldap_msgfree(result);
2208                         result = NULL;
2209                 }
2210         }
2211
2212         /* does the entry already exist but without a samba attributes?
2213            we need to return the samba attributes here */
2214
2215         escape_user = escape_ldap_string(talloc_tos(), username);
2216         filter = talloc_strdup(attr_list, "(uid=%u)");
2217         if (!filter) {
2218                 status = NT_STATUS_NO_MEMORY;
2219                 goto fn_exit;
2220         }
2221         filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
2222         TALLOC_FREE(escape_user);
2223         if (!filter) {
2224                 status = NT_STATUS_NO_MEMORY;
2225                 goto fn_exit;
2226         }
2227
2228         rc = smbldap_search_suffix(ldap_state->smbldap_state,
2229                                    filter, attr_list, &result);
2230         if ( rc != LDAP_SUCCESS ) {
2231                 goto fn_exit;
2232         }
2233
2234         num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2235
2236         if (num_result > 1) {
2237                 DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
2238                 goto fn_exit;
2239         }
2240
2241         /* Check if we need to update an existing entry */
2242         if (num_result == 1) {
2243                 DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2244                 ldap_op = LDAP_MOD_REPLACE;
2245                 entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2246                 dn = smbldap_talloc_dn(ctx, ldap_state->smbldap_state->ldap_struct, entry);
2247                 if (!dn) {
2248                         status = NT_STATUS_NO_MEMORY;
2249                         goto fn_exit;
2250                 }
2251
2252         } else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
2253
2254                 /* There might be a SID for this account already - say an idmap entry */
2255
2256                 filter = talloc_asprintf(ctx,
2257                                 "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
2258                                  get_userattr_key2string(ldap_state->schema_ver,
2259                                          LDAP_ATTR_USER_SID),
2260                                  sid_string_talloc(ctx, sid),
2261                                  LDAP_OBJ_IDMAP_ENTRY,
2262                                  LDAP_OBJ_SID_ENTRY);
2263                 if (!filter) {
2264                         status = NT_STATUS_NO_MEMORY;
2265                         goto fn_exit;
2266                 }
2267
2268                 /* free old result before doing a new search */
2269                 if (result != NULL) {
2270                         ldap_msgfree(result);
2271                         result = NULL;
2272                 }
2273                 rc = smbldap_search_suffix(ldap_state->smbldap_state,
2274                                            filter, attr_list, &result);
2275
2276                 if ( rc != LDAP_SUCCESS ) {
2277                         goto fn_exit;
2278                 }
2279
2280                 num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
2281
2282                 if (num_result > 1) {
2283                         DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
2284                         goto fn_exit;
2285                 }
2286
2287                 /* Check if we need to update an existing entry */
2288                 if (num_result == 1) {
2289
2290                         DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
2291                         ldap_op = LDAP_MOD_REPLACE;
2292                         entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
2293                         dn = smbldap_talloc_dn (ctx, ldap_state->smbldap_state->ldap_struct, entry);
2294                         if (!dn) {
2295                                 status = NT_STATUS_NO_MEMORY;
2296                                 goto fn_exit;
2297                         }
2298                 }
2299         }
2300
2301         if (num_result == 0) {
2302                 char *escape_username;
2303                 /* Check if we need to add an entry */
2304                 DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
2305                 ldap_op = LDAP_MOD_ADD;
2306
2307                 escape_username = escape_rdn_val_string_alloc(username);
2308                 if (!escape_username) {
2309                         status = NT_STATUS_NO_MEMORY;
2310                         goto fn_exit;
2311                 }
2312
2313                 if (username[strlen(username)-1] == '$') {
2314                         dn = talloc_asprintf(ctx,
2315                                         "uid=%s,%s",
2316                                         escape_username,
2317                                         lp_ldap_machine_suffix());
2318                 } else {
2319                         dn = talloc_asprintf(ctx,
2320                                         "uid=%s,%s",
2321                                         escape_username,
2322                                         lp_ldap_user_suffix());
2323                 }
2324
2325                 SAFE_FREE(escape_username);
2326                 if (!dn) {
2327                         status = NT_STATUS_NO_MEMORY;
2328                         goto fn_exit;
2329                 }
2330         }
2331
2332         if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
2333                                 element_is_set_or_changed)) {
2334                 DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
2335                 if (mods != NULL) {
2336                         ldap_mods_free(mods, true);
2337                 }
2338                 goto fn_exit;
2339         }
2340
2341         if (mods == NULL) {
2342                 DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
2343                 goto fn_exit;
2344         }
2345         switch ( ldap_state->schema_ver ) {
2346                 case SCHEMAVER_SAMBAACCOUNT:
2347                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
2348                         break;
2349                 case SCHEMAVER_SAMBASAMACCOUNT:
2350                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
2351                         break;
2352                 default:
2353                         DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
2354                         break;
2355         }
2356
2357         ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
2358         if (!NT_STATUS_IS_OK(ret)) {
2359                 DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
2360                          pdb_get_username(newpwd),dn));
2361                 ldap_mods_free(mods, true);
2362                 goto fn_exit;
2363         }
2364
2365         DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
2366         ldap_mods_free(mods, true);
2367
2368         status = NT_STATUS_OK;
2369
2370   fn_exit:
2371
2372         TALLOC_FREE(ctx);
2373         if (result) {
2374                 ldap_msgfree(result);
2375         }
2376         return status;
2377 }
2378
2379 /**********************************************************************
2380  *********************************************************************/
2381
2382 static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
2383                                      const char *filter,
2384                                      LDAPMessage ** result)
2385 {
2386         int scope = LDAP_SCOPE_SUBTREE;
2387         int rc;
2388         const char **attr_list;
2389
2390         attr_list = get_attr_list(NULL, groupmap_attr_list);
2391         rc = smbldap_search(ldap_state->smbldap_state,
2392                             lp_ldap_suffix (), scope,
2393                             filter, attr_list, 0, result);
2394         TALLOC_FREE(attr_list);
2395
2396         return rc;
2397 }
2398
2399 /**********************************************************************
2400  *********************************************************************/
2401
2402 static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
2403                                  GROUP_MAP *map, LDAPMessage *entry)
2404 {
2405         char *temp = NULL;
2406         TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
2407
2408         if (ldap_state == NULL || map == NULL || entry == NULL ||
2409                         ldap_state->smbldap_state->ldap_struct == NULL) {
2410                 DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
2411                 TALLOC_FREE(ctx);
2412                 return false;
2413         }
2414
2415         temp = smbldap_talloc_single_attribute(
2416                         ldap_state->smbldap_state->ldap_struct,
2417                         entry,
2418                         get_attr_key2string(groupmap_attr_list,
2419                                 LDAP_ATTR_GIDNUMBER),
2420                         ctx);
2421         if (!temp) {
2422                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2423                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
2424                 TALLOC_FREE(ctx);
2425                 return false;
2426         }
2427         DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
2428
2429         map->gid = (gid_t)atol(temp);
2430
2431         TALLOC_FREE(temp);
2432         temp = smbldap_talloc_single_attribute(
2433                         ldap_state->smbldap_state->ldap_struct,
2434                         entry,
2435                         get_attr_key2string(groupmap_attr_list,
2436                                 LDAP_ATTR_GROUP_SID),
2437                         ctx);
2438         if (!temp) {
2439                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2440                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
2441                 TALLOC_FREE(ctx);
2442                 return false;
2443         }
2444
2445         if (!string_to_sid(&map->sid, temp)) {
2446                 DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
2447                 TALLOC_FREE(ctx);
2448                 return false;
2449         }
2450
2451         TALLOC_FREE(temp);
2452         temp = smbldap_talloc_single_attribute(
2453                         ldap_state->smbldap_state->ldap_struct,
2454                         entry,
2455                         get_attr_key2string(groupmap_attr_list,
2456                                 LDAP_ATTR_GROUP_TYPE),
2457                         ctx);
2458         if (!temp) {
2459                 DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
2460                         get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
2461                 TALLOC_FREE(ctx);
2462                 return false;
2463         }
2464         map->sid_name_use = (enum lsa_SidType)atol(temp);
2465
2466         if ((map->sid_name_use < SID_NAME_USER) ||
2467                         (map->sid_name_use > SID_NAME_UNKNOWN)) {
2468                 DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
2469                 TALLOC_FREE(ctx);
2470                 return false;
2471         }
2472
2473         TALLOC_FREE(temp);
2474         temp = smbldap_talloc_single_attribute(
2475                         ldap_state->smbldap_state->ldap_struct,
2476                         entry,
2477                         get_attr_key2string(groupmap_attr_list,
2478                                 LDAP_ATTR_DISPLAY_NAME),
2479                         ctx);
2480         if (!temp) {
2481                 temp = smbldap_talloc_single_attribute(
2482                                 ldap_state->smbldap_state->ldap_struct,
2483                                 entry,
2484                                 get_attr_key2string(groupmap_attr_list,
2485                                         LDAP_ATTR_CN),
2486                                 ctx);
2487                 if (!temp) {
2488                         DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
2489 for gidNumber(%lu)\n",(unsigned long)map->gid));
2490                         TALLOC_FREE(ctx);
2491                         return false;
2492                 }
2493         }
2494         fstrcpy(map->nt_name, temp);
2495
2496         TALLOC_FREE(temp);
2497         temp = smbldap_talloc_single_attribute(
2498                         ldap_state->smbldap_state->ldap_struct,
2499                         entry,
2500                         get_attr_key2string(groupmap_attr_list,
2501                                 LDAP_ATTR_DESC),
2502                         ctx);
2503         if (!temp) {
2504                 temp = talloc_strdup(ctx, "");
2505                 if (!temp) {
2506                         TALLOC_FREE(ctx);
2507                         return false;
2508                 }
2509         }
2510         fstrcpy(map->comment, temp);
2511
2512         if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
2513                 store_gid_sid_cache(&map->sid, map->gid);
2514                 idmap_cache_set_sid2gid(&map->sid, map->gid);
2515         }
2516
2517         TALLOC_FREE(ctx);
2518         return true;
2519 }
2520
2521 /**********************************************************************
2522  *********************************************************************/
2523
2524 static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
2525                                  const char *filter,
2526                                  GROUP_MAP *map)
2527 {
2528         struct ldapsam_privates *ldap_state =
2529                 (struct ldapsam_privates *)methods->private_data;
2530         LDAPMessage *result = NULL;
2531         LDAPMessage *entry = NULL;
2532         int count;
2533
2534         if (ldapsam_search_one_group(ldap_state, filter, &result)
2535             != LDAP_SUCCESS) {
2536                 return NT_STATUS_NO_SUCH_GROUP;
2537         }
2538
2539         count = ldap_count_entries(priv2ld(ldap_state), result);
2540
2541         if (count < 1) {
2542                 DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
2543                           "%s\n", filter));
2544                 ldap_msgfree(result);
2545                 return NT_STATUS_NO_SUCH_GROUP;
2546         }
2547
2548         if (count > 1) {
2549                 DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
2550                           "count=%d\n", filter, count));
2551                 ldap_msgfree(result);
2552                 return NT_STATUS_NO_SUCH_GROUP;
2553         }
2554
2555         entry = ldap_first_entry(priv2ld(ldap_state), result);
2556
2557         if (!entry) {
2558                 ldap_msgfree(result);
2559                 return NT_STATUS_UNSUCCESSFUL;
2560         }
2561
2562         if (!init_group_from_ldap(ldap_state, map, entry)) {
2563                 DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
2564                           "group filter %s\n", filter));
2565                 ldap_msgfree(result);
2566                 return NT_STATUS_NO_SUCH_GROUP;
2567         }
2568
2569         ldap_msgfree(result);
2570         return NT_STATUS_OK;
2571 }
2572
2573 /**********************************************************************
2574  *********************************************************************/
2575
2576 static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
2577                                  struct dom_sid sid)
2578 {
2579         char *filter = NULL;
2580         NTSTATUS status;
2581         fstring tmp;
2582
2583         if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
2584                 LDAP_OBJ_GROUPMAP,
2585                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
2586                 sid_to_fstring(tmp, &sid)) < 0) {
2587                 return NT_STATUS_NO_MEMORY;
2588         }
2589
2590         status = ldapsam_getgroup(methods, filter, map);
2591         SAFE_FREE(filter);
2592         return status;
2593 }
2594
2595 /**********************************************************************
2596  *********************************************************************/
2597
2598 static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
2599                                  gid_t gid)
2600 {
2601         char *filter = NULL;
2602         NTSTATUS status;
2603
2604         if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
2605                 LDAP_OBJ_GROUPMAP,
2606                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
2607                 (unsigned long)gid) < 0) {
2608                 return NT_STATUS_NO_MEMORY;
2609         }
2610
2611         status = ldapsam_getgroup(methods, filter, map);
2612         SAFE_FREE(filter);
2613         return status;
2614 }
2615
2616 /**********************************************************************
2617  *********************************************************************/
2618
2619 static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
2620                                  const char *name)
2621 {
2622         char *filter = NULL;
2623         char *escape_name = escape_ldap_string(talloc_tos(), name);
2624         NTSTATUS status;
2625
2626         if (!escape_name) {
2627                 return NT_STATUS_NO_MEMORY;
2628         }
2629
2630         if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
2631                 LDAP_OBJ_GROUPMAP,
2632                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
2633                 get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
2634                 escape_name) < 0) {
2635                 TALLOC_FREE(escape_name);
2636                 return NT_STATUS_NO_MEMORY;
2637         }
2638
2639         TALLOC_FREE(escape_name);
2640         status = ldapsam_getgroup(methods, filter, map);
2641         SAFE_FREE(filter);
2642         return status;
2643 }
2644
2645 static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
2646                                            LDAPMessage *entry,
2647                                            const struct dom_sid *domain_sid,
2648                                            uint32_t *rid)
2649 {
2650         fstring str;
2651         struct dom_sid sid;
2652
2653         if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
2654                                           str, sizeof(str)-1)) {
2655                 DEBUG(10, ("Could not find sambaSID attribute\n"));
2656                 return False;
2657         }
2658
2659         if (!string_to_sid(&sid, str)) {
2660                 DEBUG(10, ("Could not convert string %s to sid\n", str));
2661                 return False;
2662         }
2663
2664         if (dom_sid_compare_domain(&sid, domain_sid) != 0) {
2665                 DEBUG(10, ("SID %s is not in expected domain %s\n",
2666                            str, sid_string_dbg(domain_sid)));
2667                 return False;
2668         }
2669
2670         if (!sid_peek_rid(&sid, rid)) {
2671                 DEBUG(10, ("Could not peek into RID\n"));
2672                 return False;
2673         }
2674
2675         return True;
2676 }
2677
2678 static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
2679                                            TALLOC_CTX *mem_ctx,
2680                                            const struct dom_sid *group,
2681                                            uint32_t **pp_member_rids,
2682                                            size_t *p_num_members)
2683 {
2684         struct ldapsam_privates *ldap_state =
2685                 (struct ldapsam_privates *)methods->private_data;
2686         struct smbldap_state *conn = ldap_state->smbldap_state;
2687         const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
2688         const char *sid_attrs[] = { "sambaSID", NULL };
2689         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2690         LDAPMessage *result = NULL;
2691         LDAPMessage *entry;
2692         char *filter;
2693         char **values = NULL;
2694         char **memberuid;
2695         char *gidstr;
2696         int rc, count;
2697
2698         *pp_member_rids = NULL;
2699         *p_num_members = 0;
2700
2701         filter = talloc_asprintf(mem_ctx,
2702                                  "(&(objectClass=%s)"
2703                                  "(objectClass=%s)"
2704                                  "(sambaSID=%s))",
2705                                  LDAP_OBJ_POSIXGROUP,
2706                                  LDAP_OBJ_GROUPMAP,
2707                                  sid_string_talloc(mem_ctx, group));
2708         if (filter == NULL) {
2709                 ret = NT_STATUS_NO_MEMORY;
2710                 goto done;
2711         }
2712
2713         rc = smbldap_search(conn, lp_ldap_suffix(),
2714                             LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
2715                             &result);
2716
2717         if (rc != LDAP_SUCCESS)
2718                 goto done;
2719
2720         talloc_autofree_ldapmsg(mem_ctx, result);
2721
2722         count = ldap_count_entries(conn->ldap_struct, result);
2723
2724         if (count > 1) {
2725                 DEBUG(1, ("Found more than one groupmap entry for %s\n",
2726                           sid_string_dbg(group)));
2727                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2728                 goto done;
2729         }
2730
2731         if (count == 0) {
2732                 ret = NT_STATUS_NO_SUCH_GROUP;
2733                 goto done;
2734         }
2735
2736         entry = ldap_first_entry(conn->ldap_struct, result);
2737         if (entry == NULL)
2738                 goto done;
2739
2740         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2741         if (!gidstr) {
2742                 DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
2743                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2744                 goto done;
2745         }
2746
2747         values = ldap_get_values(conn->ldap_struct, entry, "memberUid");
2748
2749         if ((values != NULL) && (values[0] != NULL)) {
2750
2751                 filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
2752                 if (filter == NULL) {
2753                         ret = NT_STATUS_NO_MEMORY;
2754                         goto done;
2755                 }
2756
2757                 for (memberuid = values; *memberuid != NULL; memberuid += 1) {
2758                         char *escape_memberuid;
2759
2760                         escape_memberuid = escape_ldap_string(talloc_tos(),
2761                                                               *memberuid);
2762                         if (escape_memberuid == NULL) {
2763                                 ret = NT_STATUS_NO_MEMORY;
2764                                 goto done;
2765                         }
2766
2767                         filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
2768                         TALLOC_FREE(escape_memberuid);
2769                         if (filter == NULL) {
2770                                 ret = NT_STATUS_NO_MEMORY;
2771                                 goto done;
2772                         }
2773                 }
2774
2775                 filter = talloc_asprintf_append_buffer(filter, "))");
2776                 if (filter == NULL) {
2777                         ret = NT_STATUS_NO_MEMORY;
2778                         goto done;
2779                 }
2780
2781                 rc = smbldap_search(conn, lp_ldap_suffix(),
2782                                     LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2783                                     &result);
2784
2785                 if (rc != LDAP_SUCCESS)
2786                         goto done;
2787
2788                 count = ldap_count_entries(conn->ldap_struct, result);
2789                 DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
2790
2791                 talloc_autofree_ldapmsg(mem_ctx, result);
2792
2793                 for (entry = ldap_first_entry(conn->ldap_struct, result);
2794                      entry != NULL;
2795                      entry = ldap_next_entry(conn->ldap_struct, entry))
2796                 {
2797                         char *sidstr;
2798                         struct dom_sid sid;
2799                         uint32_t rid;
2800
2801                         sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
2802                                                                  entry, "sambaSID",
2803                                                                  mem_ctx);
2804                         if (!sidstr) {
2805                                 DEBUG(0, ("Severe DB error, %s can't miss the sambaSID"
2806                                           "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2807                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2808                                 goto done;
2809                         }
2810
2811                         if (!string_to_sid(&sid, sidstr))
2812                                 goto done;
2813
2814                         if (!sid_check_is_in_our_domain(&sid)) {
2815                                 DEBUG(0, ("Inconsistent SAM -- group member uid not "
2816                                           "in our domain\n"));
2817                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2818                                 goto done;
2819                         }
2820
2821                         sid_peek_rid(&sid, &rid);
2822
2823                         if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2824                                                 p_num_members)) {
2825                                 ret = NT_STATUS_NO_MEMORY;
2826                                 goto done;
2827                         }
2828                 }
2829         }
2830
2831         filter = talloc_asprintf(mem_ctx,
2832                                  "(&(objectClass=%s)"
2833                                  "(gidNumber=%s))",
2834                                  LDAP_OBJ_SAMBASAMACCOUNT,
2835                                  gidstr);
2836
2837         rc = smbldap_search(conn, lp_ldap_suffix(),
2838                             LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
2839                             &result);
2840
2841         if (rc != LDAP_SUCCESS)
2842                 goto done;
2843
2844         talloc_autofree_ldapmsg(mem_ctx, result);
2845
2846         for (entry = ldap_first_entry(conn->ldap_struct, result);
2847              entry != NULL;
2848              entry = ldap_next_entry(conn->ldap_struct, entry))
2849         {
2850                 uint32_t rid;
2851
2852                 if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
2853                                                     entry,
2854                                                     get_global_sam_sid(),
2855                                                     &rid)) {
2856                         DEBUG(0, ("Severe DB error, %s can't miss the samba SID"                                                                "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
2857                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2858                         goto done;
2859                 }
2860
2861                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
2862                                         p_num_members)) {
2863                         ret = NT_STATUS_NO_MEMORY;
2864                         goto done;
2865                 }
2866         }
2867
2868         ret = NT_STATUS_OK;
2869
2870  done:
2871
2872         if (values)
2873                 ldap_value_free(values);
2874
2875         return ret;
2876 }
2877
2878 static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
2879                                                TALLOC_CTX *mem_ctx,
2880                                                struct samu *user,
2881                                                struct dom_sid **pp_sids,
2882                                                gid_t **pp_gids,
2883                                                uint32_t *p_num_groups)
2884 {
2885         struct ldapsam_privates *ldap_state =
2886                 (struct ldapsam_privates *)methods->private_data;
2887         struct smbldap_state *conn = ldap_state->smbldap_state;
2888         char *filter;
2889         const char *attrs[] = { "gidNumber", "sambaSID", NULL };
2890         char *escape_name;
2891         int rc, count;
2892         LDAPMessage *result = NULL;
2893         LDAPMessage *entry;
2894         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
2895         uint32_t num_sids;
2896         uint32_t num_gids;
2897         char *gidstr;
2898         gid_t primary_gid = -1;
2899
2900         *pp_sids = NULL;
2901         num_sids = 0;
2902
2903         if (pdb_get_username(user) == NULL) {
2904                 return NT_STATUS_INVALID_PARAMETER;
2905         }
2906
2907         escape_name = escape_ldap_string(talloc_tos(), pdb_get_username(user));
2908         if (escape_name == NULL)
2909                 return NT_STATUS_NO_MEMORY;
2910
2911         if (user->unix_pw) {
2912                 primary_gid = user->unix_pw->pw_gid;
2913         } else {
2914                 /* retrieve the users primary gid */
2915                 filter = talloc_asprintf(mem_ctx,
2916                                          "(&(objectClass=%s)(uid=%s))",
2917                                          LDAP_OBJ_SAMBASAMACCOUNT,
2918                                          escape_name);
2919                 if (filter == NULL) {
2920                         ret = NT_STATUS_NO_MEMORY;
2921                         goto done;
2922                 }
2923
2924                 rc = smbldap_search(conn, lp_ldap_suffix(),
2925                                     LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2926
2927                 if (rc != LDAP_SUCCESS)
2928                         goto done;
2929
2930                 talloc_autofree_ldapmsg(mem_ctx, result);
2931
2932                 count = ldap_count_entries(priv2ld(ldap_state), result);
2933
2934                 switch (count) {
2935                 case 0:
2936                         DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
2937                         ret = NT_STATUS_NO_SUCH_USER;
2938                         goto done;
2939                 case 1:
2940                         entry = ldap_first_entry(priv2ld(ldap_state), result);
2941
2942                         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
2943                         if (!gidstr) {
2944                                 DEBUG (1, ("Unable to find the member's gid!\n"));
2945                                 ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2946                                 goto done;
2947                         }
2948                         primary_gid = strtoul(gidstr, NULL, 10);
2949                         break;
2950                 default:
2951                         DEBUG(1, ("found more than one account with the same user name ?!\n"));
2952                         ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
2953                         goto done;
2954                 }
2955         }
2956
2957         filter = talloc_asprintf(mem_ctx,
2958                                  "(&(objectClass=%s)(|(memberUid=%s)(gidNumber=%u)))",
2959                                  LDAP_OBJ_POSIXGROUP, escape_name, (unsigned int)primary_gid);
2960         if (filter == NULL) {
2961                 ret = NT_STATUS_NO_MEMORY;
2962                 goto done;
2963         }
2964
2965         rc = smbldap_search(conn, lp_ldap_suffix(),
2966                             LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
2967
2968         if (rc != LDAP_SUCCESS)
2969                 goto done;
2970
2971         talloc_autofree_ldapmsg(mem_ctx, result);
2972
2973         num_gids = 0;
2974         *pp_gids = NULL;
2975
2976         num_sids = 0;
2977         *pp_sids = NULL;
2978
2979         /* We need to add the primary group as the first gid/sid */
2980
2981         if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
2982                 ret = NT_STATUS_NO_MEMORY;
2983                 goto done;
2984         }
2985
2986         /* This sid will be replaced later */
2987
2988         ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
2989                                       &num_sids);
2990         if (!NT_STATUS_IS_OK(ret)) {
2991                 goto done;
2992         }
2993
2994         for (entry = ldap_first_entry(conn->ldap_struct, result);
2995              entry != NULL;
2996              entry = ldap_next_entry(conn->ldap_struct, entry))
2997         {
2998                 fstring str;
2999                 struct dom_sid sid;
3000                 gid_t gid;
3001                 char *end;
3002
3003                 if (!smbldap_get_single_attribute(conn->ldap_struct,
3004                                                   entry, "sambaSID",
3005                                                   str, sizeof(str)-1))
3006                         continue;
3007
3008                 if (!string_to_sid(&sid, str))
3009                         goto done;
3010
3011                 if (!smbldap_get_single_attribute(conn->ldap_struct,
3012                                                   entry, "gidNumber",
3013                                                   str, sizeof(str)-1))
3014                         continue;
3015
3016                 gid = strtoul(str, &end, 10);
3017
3018                 if (PTR_DIFF(end, str) != strlen(str))
3019                         goto done;
3020
3021                 if (gid == primary_gid) {
3022                         sid_copy(&(*pp_sids)[0], &sid);
3023                 } else {
3024                         if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
3025                                                 &num_gids)) {
3026                                 ret = NT_STATUS_NO_MEMORY;
3027                                 goto done;
3028                         }
3029                         ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
3030                                                       &num_sids);
3031                         if (!NT_STATUS_IS_OK(ret)) {
3032                                 goto done;
3033                         }
3034                 }
3035         }
3036
3037         if (dom_sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
3038                 DEBUG(3, ("primary group of [%s] not found\n",
3039                           pdb_get_username(user)));
3040                 goto done;
3041         }
3042
3043         *p_num_groups = num_sids;
3044
3045         ret = NT_STATUS_OK;
3046
3047  done:
3048
3049         TALLOC_FREE(escape_name);
3050         return ret;
3051 }
3052
3053 /**********************************************************************
3054  * Augment a posixGroup object with a sambaGroupMapping domgroup
3055  *********************************************************************/
3056
3057 static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
3058                                        struct ldapsam_privates *ldap_state,
3059                                        GROUP_MAP *map)
3060 {
3061         const char *filter, *dn;
3062         LDAPMessage *msg, *entry;
3063         LDAPMod **mods;
3064         int rc;
3065
3066         filter = talloc_asprintf(mem_ctx,
3067                                  "(&(objectClass=%s)(gidNumber=%u))",
3068                                  LDAP_OBJ_POSIXGROUP, (unsigned int)map->gid);
3069         if (filter == NULL) {
3070                 return NT_STATUS_NO_MEMORY;
3071         }
3072
3073         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3074                                    get_attr_list(mem_ctx, groupmap_attr_list),
3075                                    &msg);
3076         talloc_autofree_ldapmsg(mem_ctx, msg);
3077
3078         if ((rc != LDAP_SUCCESS) ||
3079             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3080             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3081                 return NT_STATUS_NO_SUCH_GROUP;
3082         }
3083
3084         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3085         if (dn == NULL) {
3086                 return NT_STATUS_NO_MEMORY;
3087         }
3088
3089         mods = NULL;
3090         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
3091                         LDAP_OBJ_GROUPMAP);
3092         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
3093                          sid_string_talloc(mem_ctx, &map->sid));
3094         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
3095                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3096         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3097                          map->nt_name);
3098         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3099                          map->comment);
3100         talloc_autofree_ldapmod(mem_ctx, mods);
3101
3102         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3103         if (rc != LDAP_SUCCESS) {
3104                 return NT_STATUS_ACCESS_DENIED;
3105         }
3106
3107         return NT_STATUS_OK;
3108 }
3109
3110 static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
3111                                                 GROUP_MAP *map)
3112 {
3113         struct ldapsam_privates *ldap_state =
3114                 (struct ldapsam_privates *)methods->private_data;
3115         LDAPMessage *msg = NULL;
3116         LDAPMod **mods = NULL;
3117         const char *attrs[] = { NULL };
3118         char *filter;
3119
3120         char *dn;
3121         TALLOC_CTX *mem_ctx;
3122         NTSTATUS result;
3123
3124         struct dom_sid sid;
3125
3126         int rc;
3127
3128         mem_ctx = talloc_new(NULL);
3129         if (mem_ctx == NULL) {
3130                 DEBUG(0, ("talloc_new failed\n"));
3131                 return NT_STATUS_NO_MEMORY;
3132         }
3133
3134         filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
3135                                  sid_string_talloc(mem_ctx, &map->sid));
3136         if (filter == NULL) {
3137                 result = NT_STATUS_NO_MEMORY;
3138                 goto done;
3139         }
3140
3141         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3142                             LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
3143         talloc_autofree_ldapmsg(mem_ctx, msg);
3144
3145         if ((rc == LDAP_SUCCESS) &&
3146             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
3147
3148                 DEBUG(3, ("SID %s already present in LDAP, refusing to add "
3149                           "group mapping entry\n", sid_string_dbg(&map->sid)));
3150                 result = NT_STATUS_GROUP_EXISTS;
3151                 goto done;
3152         }
3153
3154         switch (map->sid_name_use) {
3155
3156         case SID_NAME_DOM_GRP:
3157                 /* To map a domain group we need to have a posix group
3158                    to attach to. */
3159                 result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
3160                 goto done;
3161                 break;
3162
3163         case SID_NAME_ALIAS:
3164                 if (!sid_check_is_in_our_domain(&map->sid)
3165                         && !sid_check_is_in_builtin(&map->sid) )
3166                 {
3167                         DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
3168                                   sid_string_dbg(&map->sid)));
3169                         result = NT_STATUS_INVALID_PARAMETER;
3170                         goto done;
3171                 }
3172                 break;
3173
3174         default:
3175                 DEBUG(3, ("Got invalid use '%s' for mapping\n",
3176                           sid_type_lookup(map->sid_name_use)));
3177                 result = NT_STATUS_INVALID_PARAMETER;
3178                 goto done;
3179         }
3180
3181         /* Domain groups have been mapped in a separate routine, we have to
3182          * create an alias now */
3183
3184         if (map->gid == -1) {
3185                 DEBUG(10, ("Refusing to map gid==-1\n"));
3186                 result = NT_STATUS_INVALID_PARAMETER;
3187                 goto done;
3188         }
3189
3190         if (pdb_gid_to_sid(map->gid, &sid)) {
3191                 DEBUG(3, ("Gid %u is already mapped to SID %s, refusing to "
3192                           "add\n", (unsigned int)map->gid, sid_string_dbg(&sid)));
3193                 result = NT_STATUS_GROUP_EXISTS;
3194                 goto done;
3195         }
3196
3197         /* Ok, enough checks done. It's still racy to go ahead now, but that's
3198          * the best we can get out of LDAP. */
3199
3200         dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
3201                              sid_string_talloc(mem_ctx, &map->sid),
3202                              lp_ldap_group_suffix());
3203         if (dn == NULL) {
3204                 result = NT_STATUS_NO_MEMORY;
3205                 goto done;
3206         }
3207
3208         mods = NULL;
3209
3210         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3211                          LDAP_OBJ_SID_ENTRY);
3212         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
3213                          LDAP_OBJ_GROUPMAP);
3214         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
3215                          sid_string_talloc(mem_ctx, &map->sid));
3216         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
3217                          talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
3218         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
3219                          map->nt_name);
3220         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
3221                          map->comment);
3222         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
3223                          talloc_asprintf(mem_ctx, "%u", (unsigned int)map->gid));
3224         talloc_autofree_ldapmod(mem_ctx, mods);
3225
3226         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
3227
3228         result = (rc == LDAP_SUCCESS) ?
3229                 NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
3230
3231  done:
3232         TALLOC_FREE(mem_ctx);
3233         return result;
3234 }
3235
3236 /**********************************************************************
3237  * Update a group mapping entry. We're quite strict about what can be changed:
3238  * Only the description and displayname may be changed. It simply does not
3239  * make any sense to change the SID, gid or the type in a mapping.
3240  *********************************************************************/
3241
3242 static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
3243                                                    GROUP_MAP *map)
3244 {
3245         struct ldapsam_privates *ldap_state =
3246                 (struct ldapsam_privates *)methods->private_data;
3247         int rc;
3248         const char *filter, *dn;
3249         LDAPMessage *msg = NULL;
3250         LDAPMessage *entry = NULL;
3251         LDAPMod **mods = NULL;
3252         TALLOC_CTX *mem_ctx;
3253         NTSTATUS result;
3254
3255         mem_ctx = talloc_new(NULL);
3256         if (mem_ctx == NULL) {
3257                 DEBUG(0, ("talloc_new failed\n"));
3258                 return NT_STATUS_NO_MEMORY;
3259         }
3260
3261         /* Make 100% sure that sid, gid and type are not changed by looking up
3262          * exactly the values we're given in LDAP. */
3263
3264         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)"
3265                                  "(sambaSid=%s)(gidNumber=%u)"
3266                                  "(sambaGroupType=%d))",
3267                                  LDAP_OBJ_GROUPMAP,
3268                                  sid_string_talloc(mem_ctx, &map->sid),
3269                                  (unsigned int)map->gid, map->sid_name_use);
3270         if (filter == NULL) {
3271                 result = NT_STATUS_NO_MEMORY;
3272                 goto done;
3273         }
3274
3275         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
3276                                    get_attr_list(mem_ctx, groupmap_attr_list),
3277                                    &msg);
3278         talloc_autofree_ldapmsg(mem_ctx, msg);
3279
3280         if ((rc != LDAP_SUCCESS) ||
3281             (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
3282             ((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
3283                 result = NT_STATUS_NO_SUCH_GROUP;
3284                 goto done;
3285         }
3286
3287         dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
3288
3289         if (dn == NULL) {
3290                 result = NT_STATUS_NO_MEMORY;
3291                 goto done;
3292         }
3293
3294         mods = NULL;
3295         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
3296                          map->nt_name);
3297         smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
3298                          map->comment);
3299         talloc_autofree_ldapmod(mem_ctx, mods);
3300
3301         if (mods == NULL) {
3302                 DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
3303                           "nothing to do\n"));
3304                 result = NT_STATUS_OK;
3305                 goto done;
3306         }
3307
3308         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3309
3310         if (rc != LDAP_SUCCESS) {
3311                 result = NT_STATUS_ACCESS_DENIED;
3312                 goto done;
3313         }
3314
3315         DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
3316                   "group %lu in LDAP\n", (unsigned long)map->gid));
3317
3318         result = NT_STATUS_OK;
3319
3320  done:
3321         TALLOC_FREE(mem_ctx);
3322         return result;
3323 }
3324
3325 /**********************************************************************
3326  *********************************************************************/
3327
3328 static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
3329                                                    struct dom_sid sid)
3330 {
3331         struct ldapsam_privates *priv =
3332                 (struct ldapsam_privates *)methods->private_data;
3333         LDAPMessage *msg, *entry;
3334         int rc;
3335         NTSTATUS result;
3336         TALLOC_CTX *mem_ctx;
3337         char *filter;
3338
3339         mem_ctx = talloc_new(NULL);
3340         if (mem_ctx == NULL) {
3341                 DEBUG(0, ("talloc_new failed\n"));
3342                 return NT_STATUS_NO_MEMORY;
3343         }
3344
3345         filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(%s=%s))",
3346                                  LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
3347                                  sid_string_talloc(mem_ctx, &sid));
3348         if (filter == NULL) {
3349                 result = NT_STATUS_NO_MEMORY;
3350                 goto done;
3351         }
3352         rc = smbldap_search_suffix(priv->smbldap_state, filter,
3353                                    get_attr_list(mem_ctx, groupmap_attr_list),
3354                                    &msg);
3355         talloc_autofree_ldapmsg(mem_ctx, msg);
3356
3357         if ((rc != LDAP_SUCCESS) ||
3358             (ldap_count_entries(priv2ld(priv), msg) != 1) ||
3359             ((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
3360                 result = NT_STATUS_NO_SUCH_GROUP;
3361                 goto done;
3362         }
3363
3364         rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
3365                                   get_attr_list(mem_ctx,
3366                                                 groupmap_attr_list_to_delete));
3367
3368         if ((rc == LDAP_NAMING_VIOLATION) ||
3369             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3370             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3371                 const char *attrs[] = { "sambaGroupType", "description",
3372                                         "displayName", "sambaSIDList",
3373                                         NULL };
3374
3375                 /* Second try. Don't delete the sambaSID attribute, this is
3376                    for "old" entries that are tacked on a winbind
3377                    sambaIdmapEntry. */
3378
3379                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3380                                           LDAP_OBJ_GROUPMAP, attrs);
3381         }
3382
3383         if ((rc == LDAP_NAMING_VIOLATION) ||
3384             (rc == LDAP_NOT_ALLOWED_ON_RDN) ||
3385             (rc == LDAP_OBJECT_CLASS_VIOLATION)) {
3386                 const char *attrs[] = { "sambaGroupType", "description",
3387                                         "displayName", "sambaSIDList",
3388                                         "gidNumber", NULL };
3389
3390                 /* Third try. This is a post-3.0.21 alias (containing only
3391                  * sambaSidEntry and sambaGroupMapping classes), we also have
3392                  * to delete the gidNumber attribute, only the sambaSidEntry
3393                  * remains */
3394
3395                 rc = ldapsam_delete_entry(priv, mem_ctx, entry,
3396                                           LDAP_OBJ_GROUPMAP, attrs);
3397         }
3398
3399         result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
3400
3401  done:
3402         TALLOC_FREE(mem_ctx);
3403         return result;
3404  }
3405
3406 /**********************************************************************
3407  *********************************************************************/
3408
3409 static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
3410                                     bool update)
3411 {
3412         struct ldapsam_privates *ldap_state =
3413                 (struct ldapsam_privates *)my_methods->private_data;
3414         char *filter = NULL;
3415         int rc;
3416         const char **attr_list;
3417
3418         filter = talloc_asprintf(NULL, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
3419         if (!filter) {
3420                 return NT_STATUS_NO_MEMORY;
3421         }
3422         attr_list = get_attr_list( NULL, groupmap_attr_list );
3423         rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3424                             LDAP_SCOPE_SUBTREE, filter,
3425                             attr_list, 0, &ldap_state->result);
3426         TALLOC_FREE(attr_list);
3427
3428         if (rc != LDAP_SUCCESS) {
3429                 DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
3430                           ldap_err2string(rc)));
3431                 DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
3432                           lp_ldap_suffix(), filter));
3433                 ldap_msgfree(ldap_state->result);
3434                 ldap_state->result = NULL;
3435                 TALLOC_FREE(filter);
3436                 return NT_STATUS_UNSUCCESSFUL;
3437         }
3438
3439         TALLOC_FREE(filter);
3440
3441         DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
3442                   ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3443                                      ldap_state->result)));
3444
3445         ldap_state->entry =
3446                 ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3447                                  ldap_state->result);
3448         ldap_state->index = 0;
3449
3450         return NT_STATUS_OK;
3451 }
3452
3453 /**********************************************************************
3454  *********************************************************************/
3455
3456 static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
3457 {
3458         ldapsam_endsampwent(my_methods);
3459 }
3460
3461 /**********************************************************************
3462  *********************************************************************/
3463
3464 static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
3465                                     GROUP_MAP *map)
3466 {
3467         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
3468         struct ldapsam_privates *ldap_state =
3469                 (struct ldapsam_privates *)my_methods->private_data;
3470         bool bret = False;
3471
3472         while (!bret) {
3473                 if (!ldap_state->entry)
3474                         return ret;
3475
3476                 ldap_state->index++;
3477                 bret = init_group_from_ldap(ldap_state, map,
3478                                             ldap_state->entry);
3479
3480                 ldap_state->entry =
3481                         ldap_next_entry(ldap_state->smbldap_state->ldap_struct,
3482                                         ldap_state->entry);
3483         }
3484
3485         return NT_STATUS_OK;
3486 }
3487
3488 /**********************************************************************
3489  *********************************************************************/
3490
3491 static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
3492                                            const struct dom_sid *domsid, enum lsa_SidType sid_name_use,
3493                                            GROUP_MAP **pp_rmap,
3494                                            size_t *p_num_entries,
3495                                            bool unix_only)
3496 {
3497         GROUP_MAP map = { 0, };
3498         size_t entries = 0;
3499
3500         *p_num_entries = 0;
3501         *pp_rmap = NULL;
3502
3503         if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
3504                 DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
3505                           "passdb\n"));
3506                 return NT_STATUS_ACCESS_DENIED;
3507         }
3508
3509         while (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
3510                 if (sid_name_use != SID_NAME_UNKNOWN &&
3511                     sid_name_use != map.sid_name_use) {
3512                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3513                                   "not of the requested type\n", map.nt_name));
3514                         continue;
3515                 }
3516                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
3517                         DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
3518                                   "non mapped\n", map.nt_name));
3519                         continue;
3520                 }
3521
3522                 (*pp_rmap)=SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
3523                 if (!(*pp_rmap)) {
3524                         DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
3525                                  "enlarge group map!\n"));
3526                         return NT_STATUS_UNSUCCESSFUL;
3527                 }
3528
3529                 (*pp_rmap)[entries] = map;
3530
3531                 entries += 1;
3532
3533         }
3534         ldapsam_endsamgrent(methods);
3535
3536         *p_num_entries = entries;
3537
3538         return NT_STATUS_OK;
3539 }
3540
3541 static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
3542                                         const struct dom_sid *alias,
3543                                         const struct dom_sid *member,
3544                                         int modop)
3545 {
3546         struct ldapsam_privates *ldap_state =
3547                 (struct ldapsam_privates *)methods->private_data;
3548         char *dn = NULL;
3549         LDAPMessage *result = NULL;
3550         LDAPMessage *entry = NULL;
3551         int count;
3552         LDAPMod **mods = NULL;
3553         int rc;
3554         enum lsa_SidType type = SID_NAME_USE_NONE;
3555         fstring tmp;
3556
3557         char *filter = NULL;
3558
3559         if (sid_check_is_in_builtin(alias)) {
3560                 type = SID_NAME_ALIAS;
3561         }
3562
3563         if (sid_check_is_in_our_domain(alias)) {
3564                 type = SID_NAME_ALIAS;
3565         }
3566
3567         if (type == SID_NAME_USE_NONE) {
3568                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3569                           sid_string_dbg(alias)));
3570                 return NT_STATUS_NO_SUCH_ALIAS;
3571         }
3572
3573         if (asprintf(&filter,
3574                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3575                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3576                      type) < 0) {
3577                 return NT_STATUS_NO_MEMORY;
3578         }
3579
3580         if (ldapsam_search_one_group(ldap_state, filter,
3581                                      &result) != LDAP_SUCCESS) {
3582                 SAFE_FREE(filter);
3583                 return NT_STATUS_NO_SUCH_ALIAS;
3584         }
3585
3586         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3587                                    result);
3588
3589         if (count < 1) {
3590                 DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
3591                 ldap_msgfree(result);
3592                 SAFE_FREE(filter);
3593                 return NT_STATUS_NO_SUCH_ALIAS;
3594         }
3595
3596         if (count > 1) {
3597                 DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
3598                           "filter %s: count=%d\n", filter, count));
3599                 ldap_msgfree(result);
3600                 SAFE_FREE(filter);
3601                 return NT_STATUS_NO_SUCH_ALIAS;
3602         }
3603
3604         SAFE_FREE(filter);
3605
3606         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3607                                  result);
3608
3609         if (!entry) {
3610                 ldap_msgfree(result);
3611                 return NT_STATUS_UNSUCCESSFUL;
3612         }
3613
3614         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
3615         if (!dn) {
3616                 ldap_msgfree(result);
3617                 return NT_STATUS_UNSUCCESSFUL;
3618         }
3619
3620         smbldap_set_mod(&mods, modop,
3621                         get_attr_key2string(groupmap_attr_list,
3622                                             LDAP_ATTR_SID_LIST),
3623                         sid_to_fstring(tmp, member));
3624
3625         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
3626
3627         ldap_mods_free(mods, True);
3628         ldap_msgfree(result);
3629         TALLOC_FREE(dn);
3630
3631         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
3632                 return NT_STATUS_MEMBER_IN_ALIAS;
3633         }
3634
3635         if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
3636                 return NT_STATUS_MEMBER_NOT_IN_ALIAS;
3637         }
3638
3639         if (rc != LDAP_SUCCESS) {
3640                 return NT_STATUS_UNSUCCESSFUL;
3641         }
3642
3643         return NT_STATUS_OK;
3644 }
3645
3646 static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
3647                                      const struct dom_sid *alias,
3648                                      const struct dom_sid *member)
3649 {
3650         return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
3651 }
3652
3653 static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
3654                                      const struct dom_sid *alias,
3655                                      const struct dom_sid *member)
3656 {
3657         return ldapsam_modify_aliasmem(methods, alias, member,
3658                                        LDAP_MOD_DELETE);
3659 }
3660
3661 static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
3662                                       const struct dom_sid *alias,
3663                                       TALLOC_CTX *mem_ctx,
3664                                       struct dom_sid **pp_members,
3665                                       size_t *p_num_members)
3666 {
3667         struct ldapsam_privates *ldap_state =
3668                 (struct ldapsam_privates *)methods->private_data;
3669         LDAPMessage *result = NULL;
3670         LDAPMessage *entry = NULL;
3671         int count;
3672         char **values = NULL;
3673         int i;
3674         char *filter = NULL;
3675         uint32_t num_members = 0;
3676         enum lsa_SidType type = SID_NAME_USE_NONE;
3677         fstring tmp;
3678
3679         *pp_members = NULL;
3680         *p_num_members = 0;
3681
3682         if (sid_check_is_in_builtin(alias)) {
3683                 type = SID_NAME_ALIAS;
3684         }
3685
3686         if (sid_check_is_in_our_domain(alias)) {
3687                 type = SID_NAME_ALIAS;
3688         }
3689
3690         if (type == SID_NAME_USE_NONE) {
3691                 DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
3692                           sid_string_dbg(alias)));
3693                 return NT_STATUS_NO_SUCH_ALIAS;
3694         }
3695
3696         if (asprintf(&filter,
3697                      "(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
3698                      LDAP_OBJ_GROUPMAP, sid_to_fstring(tmp, alias),
3699                      type) < 0) {
3700                 return NT_STATUS_NO_MEMORY;
3701         }
3702
3703         if (ldapsam_search_one_group(ldap_state, filter,
3704                                      &result) != LDAP_SUCCESS) {
3705                 SAFE_FREE(filter);
3706                 return NT_STATUS_NO_SUCH_ALIAS;
3707         }
3708
3709         count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
3710                                    result);
3711
3712         if (count < 1) {
3713                 DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
3714                 ldap_msgfree(result);
3715                 SAFE_FREE(filter);
3716                 return NT_STATUS_NO_SUCH_ALIAS;
3717         }
3718
3719         if (count > 1) {
3720                 DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
3721                           "filter %s: count=%d\n", filter, count));
3722                 ldap_msgfree(result);
3723                 SAFE_FREE(filter);
3724                 return NT_STATUS_NO_SUCH_ALIAS;
3725         }
3726
3727         SAFE_FREE(filter);
3728
3729         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
3730                                  result);
3731
3732         if (!entry) {
3733                 ldap_msgfree(result);
3734                 return NT_STATUS_UNSUCCESSFUL;
3735         }
3736
3737         values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
3738                                  entry,
3739                                  get_attr_key2string(groupmap_attr_list,
3740                                                      LDAP_ATTR_SID_LIST));
3741
3742         if (values == NULL) {
3743                 ldap_msgfree(result);
3744                 return NT_STATUS_OK;
3745         }
3746
3747         count = ldap_count_values(values);
3748
3749         for (i=0; i<count; i++) {
3750                 struct dom_sid member;
3751                 NTSTATUS status;
3752
3753                 if (!string_to_sid(&member, values[i]))
3754                         continue;
3755
3756                 status = add_sid_to_array(mem_ctx, &member, pp_members,
3757                                           &num_members);
3758                 if (!NT_STATUS_IS_OK(status)) {
3759                         ldap_value_free(values);
3760                         ldap_msgfree(result);
3761                         return status;
3762                 }
3763         }
3764
3765         *p_num_members = num_members;
3766         ldap_value_free(values);
3767         ldap_msgfree(result);
3768
3769         return NT_STATUS_OK;
3770 }
3771
3772 static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
3773                                           TALLOC_CTX *mem_ctx,
3774                                           const struct dom_sid *domain_sid,
3775                                           const struct dom_sid *members,
3776                                           size_t num_members,
3777                                           uint32_t **pp_alias_rids,
3778                                           size_t *p_num_alias_rids)
3779 {
3780         struct ldapsam_privates *ldap_state =
3781                 (struct ldapsam_privates *)methods->private_data;
3782         LDAP *ldap_struct;
3783
3784         const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
3785
3786         LDAPMessage *result = NULL;
3787         LDAPMessage *entry = NULL;
3788         int i;
3789         int rc;
3790         char *filter;
3791         enum lsa_SidType type = SID_NAME_USE_NONE;
3792         bool is_builtin = false;
3793         bool sid_added = false;
3794
3795         *pp_alias_rids = NULL;
3796         *p_num_alias_rids = 0;
3797
3798         if (sid_check_is_builtin(domain_sid)) {
3799                 is_builtin = true;
3800                 type = SID_NAME_ALIAS;
3801         }
3802
3803         if (sid_check_is_domain(domain_sid)) {
3804                 type = SID_NAME_ALIAS;
3805         }
3806
3807         if (type == SID_NAME_USE_NONE) {
3808                 DEBUG(5, ("SID %s is neither builtin nor domain!\n",
3809                           sid_string_dbg(domain_sid)));
3810                 return NT_STATUS_UNSUCCESSFUL;
3811         }
3812
3813         if (num_members == 0) {
3814                 return NT_STATUS_OK;
3815         }
3816
3817         filter = talloc_asprintf(mem_ctx,
3818                                  "(&(objectclass=%s)(sambaGroupType=%d)(|",
3819                                  LDAP_OBJ_GROUPMAP, type);
3820
3821         for (i=0; i<num_members; i++)
3822                 filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
3823                                          filter,
3824                                          sid_string_talloc(mem_ctx,
3825                                                            &members[i]));
3826
3827         filter = talloc_asprintf(mem_ctx, "%s))", filter);
3828
3829         if (filter == NULL) {
3830                 return NT_STATUS_NO_MEMORY;
3831         }
3832
3833         if (is_builtin &&
3834             ldap_state->search_cache.filter &&
3835             strcmp(ldap_state->search_cache.filter, filter) == 0) {
3836                 filter = talloc_move(filter, &ldap_state->search_cache.filter);
3837                 result = ldap_state->search_cache.result;
3838                 ldap_state->search_cache.result = NULL;
3839         } else {
3840                 rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
3841                                     LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
3842                 if (rc != LDAP_SUCCESS) {
3843                         return NT_STATUS_UNSUCCESSFUL;
3844                 }
3845                 talloc_autofree_ldapmsg(filter, result);
3846         }
3847
3848         ldap_struct = ldap_state->smbldap_state->ldap_struct;
3849
3850         for (entry = ldap_first_entry(ldap_struct, result);
3851              entry != NULL;
3852              entry = ldap_next_entry(ldap_struct, entry))
3853         {
3854                 fstring sid_str;
3855                 struct dom_sid sid;
3856                 uint32_t rid;
3857
3858                 if (!smbldap_get_single_attribute(ldap_struct, entry,
3859                                                   LDAP_ATTRIBUTE_SID,
3860                                                   sid_str,
3861                                                   sizeof(sid_str)-1))
3862                         continue;
3863
3864                 if (!string_to_sid(&sid, sid_str))
3865                         continue;
3866
3867                 if (!sid_peek_check_rid(domain_sid, &sid, &rid))
3868                         continue;
3869
3870                 sid_added = true;
3871
3872                 if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
3873                                         p_num_alias_rids)) {
3874                         return NT_STATUS_NO_MEMORY;
3875                 }
3876         }
3877
3878         if (!is_builtin && !sid_added) {
3879                 TALLOC_FREE(ldap_state->search_cache.filter);
3880                 /*
3881                  * Note: result is a talloc child of filter because of the
3882                  * talloc_autofree_ldapmsg() usage
3883                  */
3884                 ldap_state->search_cache.filter = talloc_move(ldap_state, &filter);
3885                 ldap_state->search_cache.result = result;
3886         }
3887
3888         return NT_STATUS_OK;
3889 }
3890
3891 static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
3892                                                    enum pdb_policy_type type,
3893                                                    uint32_t value)
3894 {
3895         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3896         int rc;
3897         LDAPMod **mods = NULL;
3898         fstring value_string;
3899         const char *policy_attr = NULL;
3900
3901         struct ldapsam_privates *ldap_state =
3902                 (struct ldapsam_privates *)methods->private_data;
3903
3904         DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
3905
3906         if (!ldap_state->domain_dn) {
3907                 return NT_STATUS_INVALID_PARAMETER;
3908         }
3909
3910         policy_attr = get_account_policy_attr(type);
3911         if (policy_attr == NULL) {
3912                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
3913                          "policy\n"));
3914                 return ntstatus;
3915         }
3916
3917         slprintf(value_string, sizeof(value_string) - 1, "%i", value);
3918
3919         smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
3920
3921         rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
3922                             mods);
3923
3924         ldap_mods_free(mods, True);
3925
3926         if (rc != LDAP_SUCCESS) {
3927                 return ntstatus;
3928         }
3929
3930         if (!cache_account_policy_set(type, value)) {
3931                 DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
3932                          "update local tdb cache\n"));
3933                 return ntstatus;
3934         }
3935
3936         return NT_STATUS_OK;
3937 }
3938
3939 static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
3940                                            enum pdb_policy_type type,
3941                                            uint32_t value)
3942 {
3943         return ldapsam_set_account_policy_in_ldap(methods, type,
3944                                                   value);
3945 }
3946
3947 static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
3948                                                      enum pdb_policy_type type,
3949                                                      uint32_t *value)
3950 {
3951         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
3952         LDAPMessage *result = NULL;
3953         LDAPMessage *entry = NULL;
3954         int count;
3955         int rc;
3956         char **vals = NULL;
3957         char *filter;
3958         const char *policy_attr = NULL;
3959
3960         struct ldapsam_privates *ldap_state =
3961                 (struct ldapsam_privates *)methods->private_data;
3962
3963         const char *attrs[2];
3964
3965         DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
3966
3967         if (!ldap_state->domain_dn) {
3968                 return NT_STATUS_INVALID_PARAMETER;
3969         }
3970
3971         policy_attr = get_account_policy_attr(type);
3972         if (!policy_attr) {
3973                 DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
3974                          "policy index: %d\n", type));
3975                 return ntstatus;
3976         }
3977
3978         attrs[0] = policy_attr;
3979         attrs[1] = NULL;
3980
3981         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)", LDAP_OBJ_DOMINFO);
3982         if (filter == NULL) {
3983                 return NT_STATUS_NO_MEMORY;
3984         }
3985         rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
3986                             LDAP_SCOPE_BASE, filter, attrs, 0,
3987                             &result);
3988         TALLOC_FREE(filter);
3989         if (rc != LDAP_SUCCESS) {
3990                 return ntstatus;
3991         }
3992
3993         count = ldap_count_entries(priv2ld(ldap_state), result);
3994         if (count < 1) {
3995                 goto out;
3996         }
3997
3998         entry = ldap_first_entry(priv2ld(ldap_state), result);
3999         if (entry == NULL) {
4000                 goto out;
4001         }
4002
4003         vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
4004         if (vals == NULL) {
4005                 goto out;
4006         }
4007
4008         *value = (uint32_t)atol(vals[0]);
4009
4010         ntstatus = NT_STATUS_OK;
4011
4012 out:
4013         if (vals)
4014                 ldap_value_free(vals);
4015         ldap_msgfree(result);
4016
4017         return ntstatus;
4018 }
4019
4020 /* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
4021
4022    - if user hasn't decided to use account policies inside LDAP just reuse the
4023      old tdb values
4024
4025    - if there is a valid cache entry, return that
4026    - if there is an LDAP entry, update cache and return
4027    - otherwise set to default, update cache and return
4028
4029    Guenther
4030 */
4031 static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
4032                                            enum pdb_policy_type type,
4033                                            uint32_t *value)
4034 {
4035         NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
4036
4037         if (cache_account_policy_get(type, value)) {
4038                 DEBUG(11,("ldapsam_get_account_policy: got valid value from "
4039                           "cache\n"));
4040                 return NT_STATUS_OK;
4041         }
4042
4043         ntstatus = ldapsam_get_account_policy_from_ldap(methods, type,
4044                                                         value);
4045         if (NT_STATUS_IS_OK(ntstatus)) {
4046                 goto update_cache;
4047         }
4048
4049         DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
4050                   "ldap\n"));
4051
4052 #if 0
4053         /* should we automagically migrate old tdb value here ? */
4054         if (account_policy_get(type, value))
4055                 goto update_ldap;
4056
4057         DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
4058                   "default\n", type));
4059 #endif
4060
4061         if (!account_policy_get_default(type, value)) {
4062                 return ntstatus;
4063         }
4064
4065 /* update_ldap: */
4066
4067         ntstatus = ldapsam_set_account_policy(methods, type, *value);
4068         if (!NT_STATUS_IS_OK(ntstatus)) {
4069                 return ntstatus;
4070         }
4071
4072  update_cache:
4073
4074         if (!cache_account_policy_set(type, *value)) {
4075                 DEBUG(0,("ldapsam_get_account_policy: failed to update local "
4076                          "tdb as a cache\n"));
4077                 return NT_STATUS_UNSUCCESSFUL;
4078         }
4079
4080         return NT_STATUS_OK;
4081 }
4082
4083 static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
4084                                     const struct dom_sid *domain_sid,
4085                                     int num_rids,
4086                                     uint32_t *rids,
4087                                     const char **names,
4088                                     enum lsa_SidType *attrs)
4089 {
4090         struct ldapsam_privates *ldap_state =
4091                 (struct ldapsam_privates *)methods->private_data;
4092         LDAPMessage *msg = NULL;
4093         LDAPMessage *entry;
4094         char *allsids = NULL;
4095         int i, rc, num_mapped;
4096         NTSTATUS result = NT_STATUS_NO_MEMORY;
4097         TALLOC_CTX *mem_ctx;
4098         LDAP *ld;
4099         bool is_builtin;
4100
4101         mem_ctx = talloc_new(NULL);
4102         if (mem_ctx == NULL) {
4103                 DEBUG(0, ("talloc_new failed\n"));
4104                 goto done;
4105         }
4106
4107         if (!sid_check_is_builtin(domain_sid) &&
4108             !sid_check_is_domain(domain_sid)) {
4109                 result = NT_STATUS_INVALID_PARAMETER;
4110                 goto done;
4111         }
4112
4113         if (num_rids == 0) {
4114                 result = NT_STATUS_NONE_MAPPED;
4115                 goto done;
4116         }
4117
4118         for (i=0; i<num_rids; i++)
4119                 attrs[i] = SID_NAME_UNKNOWN;
4120
4121         allsids = talloc_strdup(mem_ctx, "");
4122         if (allsids == NULL) {
4123                 goto done;
4124         }
4125
4126         for (i=0; i<num_rids; i++) {
4127                 struct dom_sid sid;
4128                 sid_compose(&sid, domain_sid, rids[i]);
4129                 allsids = talloc_asprintf_append_buffer(
4130                         allsids, "(sambaSid=%s)",
4131                         sid_string_talloc(mem_ctx, &sid));
4132                 if (allsids == NULL) {
4133                         goto done;
4134                 }
4135         }
4136
4137         /* First look for users */
4138
4139         {
4140                 char *filter;
4141                 const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
4142
4143                 filter = talloc_asprintf(
4144                         mem_ctx, ("(&(objectClass=%s)(|%s))"),
4145                         LDAP_OBJ_SAMBASAMACCOUNT, allsids);
4146
4147                 if (filter == NULL) {
4148                         goto done;
4149                 }
4150
4151                 rc = smbldap_search(ldap_state->smbldap_state,
4152                                     lp_ldap_user_suffix(),
4153                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4154                                     &msg);
4155                 talloc_autofree_ldapmsg(mem_ctx, msg);
4156         }
4157
4158         if (rc != LDAP_SUCCESS)
4159                 goto done;
4160
4161         ld = ldap_state->smbldap_state->ldap_struct;
4162         num_mapped = 0;
4163
4164         for (entry = ldap_first_entry(ld, msg);
4165              entry != NULL;
4166              entry = ldap_next_entry(ld, entry)) {
4167                 uint32_t rid;
4168                 int rid_index;
4169                 const char *name;
4170
4171                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4172                                                     &rid)) {
4173                         DEBUG(2, ("Could not find sid from ldap entry\n"));
4174                         continue;
4175                 }
4176
4177                 name = smbldap_talloc_single_attribute(ld, entry, "uid",
4178                                                        names);
4179                 if (name == NULL) {
4180                         DEBUG(2, ("Could not retrieve uid attribute\n"));
4181                         continue;
4182                 }
4183
4184                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4185                         if (rid == rids[rid_index])
4186                                 break;
4187                 }
4188
4189                 if (rid_index == num_rids) {
4190                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4191                         continue;
4192                 }
4193
4194                 attrs[rid_index] = SID_NAME_USER;
4195                 names[rid_index] = name;
4196                 num_mapped += 1;
4197         }
4198
4199         if (num_mapped == num_rids) {
4200                 /* No need to look for groups anymore -- we're done */
4201                 result = NT_STATUS_OK;
4202                 goto done;
4203         }
4204
4205         /* Same game for groups */
4206
4207         {
4208                 char *filter;
4209                 const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
4210                                              "sambaGroupType", NULL };
4211
4212                 filter = talloc_asprintf(
4213                         mem_ctx, "(&(objectClass=%s)(|%s))",
4214                         LDAP_OBJ_GROUPMAP, allsids);
4215                 if (filter == NULL) {
4216                         goto done;
4217                 }
4218
4219                 rc = smbldap_search(ldap_state->smbldap_state,
4220                                     lp_ldap_suffix(),
4221                                     LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
4222                                     &msg);
4223                 talloc_autofree_ldapmsg(mem_ctx, msg);
4224         }
4225
4226         if (rc != LDAP_SUCCESS)
4227                 goto done;
4228
4229         /* ldap_struct might have changed due to a reconnect */
4230
4231         ld = ldap_state->smbldap_state->ldap_struct;
4232
4233         /* For consistency checks, we already checked we're only domain or builtin */
4234
4235         is_builtin = sid_check_is_builtin(domain_sid);
4236
4237         for (entry = ldap_first_entry(ld, msg);
4238              entry != NULL;
4239              entry = ldap_next_entry(ld, entry))
4240         {
4241                 uint32_t rid;
4242                 int rid_index;
4243                 const char *attr;
4244                 enum lsa_SidType type;
4245                 const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
4246
4247                 attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
4248                                                        mem_ctx);
4249                 if (attr == NULL) {
4250                         DEBUG(2, ("Could not extract type from ldap entry %s\n",
4251                                   dn));
4252                         continue;
4253                 }
4254
4255                 type = (enum lsa_SidType)atol(attr);
4256
4257                 /* Consistency checks */
4258                 if ((is_builtin && (type != SID_NAME_ALIAS)) ||
4259                     (!is_builtin && ((type != SID_NAME_ALIAS) &&
4260                                      (type != SID_NAME_DOM_GRP)))) {
4261                         DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
4262                 }
4263
4264                 if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
4265                                                     &rid)) {
4266                         DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
4267                         continue;
4268                 }
4269
4270                 attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
4271
4272                 if (attr == NULL) {
4273                         DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
4274                                    dn));
4275                         attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
4276                 }
4277
4278                 if (attr == NULL) {
4279                         DEBUG(2, ("Could not retrieve naming attribute from %s\n",
4280                                   dn));
4281                         continue;
4282                 }
4283
4284                 for (rid_index = 0; rid_index < num_rids; rid_index++) {
4285                         if (rid == rids[rid_index])
4286                                 break;
4287                 }
4288
4289                 if (rid_index == num_rids) {
4290                         DEBUG(2, ("Got a RID not asked for: %d\n", rid));
4291                         continue;
4292                 }
4293
4294                 attrs[rid_index] = type;
4295                 names[rid_index] = attr;
4296                 num_mapped += 1;
4297         }
4298
4299         result = NT_STATUS_NONE_MAPPED;
4300
4301         if (num_mapped > 0)
4302                 result = (num_mapped == num_rids) ?
4303                         NT_STATUS_OK : STATUS_SOME_UNMAPPED;
4304  done:
4305         TALLOC_FREE(mem_ctx);
4306         return result;
4307 }
4308
4309 static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
4310 {
4311         char *filter = NULL;
4312         char *escaped = NULL;
4313         char *result = NULL;
4314
4315         if (asprintf(&filter, "(&%s(objectclass=%s))",
4316                           "(uid=%u)", LDAP_OBJ_SAMBASAMACCOUNT) < 0) {
4317                 goto done;
4318         }
4319
4320         escaped = escape_ldap_string(talloc_tos(), username);
4321         if (escaped == NULL) goto done;
4322
4323         result = talloc_string_sub(mem_ctx, filter, "%u", username);
4324
4325  done:
4326         SAFE_FREE(filter);
4327         TALLOC_FREE(escaped);
4328
4329         return result;
4330 }
4331
4332 static const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
4333 {
4334         int i, num = 0;
4335         va_list ap;
4336         const char **result;
4337
4338         va_start(ap, mem_ctx);
4339         while (va_arg(ap, const char *) != NULL)
4340                 num += 1;
4341         va_end(ap);
4342
4343         if ((result = talloc_array(mem_ctx, const char *, num+1)) == NULL) {
4344                 return NULL;
4345         }
4346
4347         va_start(ap, mem_ctx);
4348         for (i=0; i<num; i++) {
4349                 result[i] = talloc_strdup(result, va_arg(ap, const char*));
4350                 if (result[i] == NULL) {
4351                         talloc_free(result);
4352                         va_end(ap);
4353                         return NULL;
4354                 }
4355         }
4356         va_end(ap);
4357
4358         result[num] = NULL;
4359         return result;
4360 }
4361
4362 struct ldap_search_state {
4363         struct smbldap_state *connection;
4364
4365         uint32_t acct_flags;
4366         uint16_t group_type;
4367
4368         const char *base;
4369         int scope;
4370         const char *filter;
4371         const char **attrs;
4372         int attrsonly;
4373         void *pagedresults_cookie;
4374
4375         LDAPMessage *entries, *current_entry;
4376         bool (*ldap2displayentry)(struct ldap_search_state *state,
4377                                   TALLOC_CTX *mem_ctx,
4378                                   LDAP *ld, LDAPMessage *entry,
4379                                   struct samr_displayentry *result);
4380 };
4381
4382 static bool ldapsam_search_firstpage(struct pdb_search *search)
4383 {
4384         struct ldap_search_state *state =
4385                 (struct ldap_search_state *)search->private_data;
4386         LDAP *ld;
4387         int rc = LDAP_OPERATIONS_ERROR;
4388
4389         state->entries = NULL;
4390
4391         if (state->connection->paged_results) {
4392                 rc = smbldap_search_paged(state->connection, state->base,
4393                                           state->scope, state->filter,
4394                                           state->attrs, state->attrsonly,
4395                                           lp_ldap_page_size(), &state->entries,
4396                                           &state->pagedresults_cookie);
4397         }
4398
4399         if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
4400
4401                 if (state->entries != NULL) {
4402                         /* Left over from unsuccessful paged attempt */
4403                         ldap_msgfree(state->entries);
4404                         state->entries = NULL;
4405                 }
4406
4407                 rc = smbldap_search(state->connection, state->base,
4408                                     state->scope, state->filter, state->attrs,
4409                                     state->attrsonly, &state->entries);
4410
4411                 if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4412                         return False;
4413
4414                 /* Ok, the server was lying. It told us it could do paged
4415                  * searches when it could not. */
4416                 state->connection->paged_results = False;
4417         }
4418
4419         ld = state->connection->ldap_struct;
4420         if ( ld == NULL) {
4421                 DEBUG(5, ("Don't have an LDAP connection right after a "
4422                           "search\n"));
4423                 return False;
4424         }
4425         state->current_entry = ldap_first_entry(ld, state->entries);
4426
4427         return True;
4428 }
4429
4430 static bool ldapsam_search_nextpage(struct pdb_search *search)
4431 {
4432         struct ldap_search_state *state =
4433                 (struct ldap_search_state *)search->private_data;
4434         int rc;
4435
4436         if (!state->connection->paged_results) {
4437                 /* There is no next page when there are no paged results */
4438                 return False;
4439         }
4440
4441         rc = smbldap_search_paged(state->connection, state->base,
4442                                   state->scope, state->filter, state->attrs,
4443                                   state->attrsonly, lp_ldap_page_size(),
4444                                   &state->entries,
4445                                   &state->pagedresults_cookie);
4446
4447         if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
4448                 return False;
4449
4450         state->current_entry = ldap_first_entry(state->connection->ldap_struct, state->entries);
4451
4452         if (state->current_entry == NULL) {
4453                 ldap_msgfree(state->entries);
4454                 state->entries = NULL;
4455                 return false;
4456         }
4457
4458         return True;
4459 }
4460
4461 static bool ldapsam_search_next_entry(struct pdb_search *search,
4462                                       struct samr_displayentry *entry)
4463 {
4464         struct ldap_search_state *state =
4465                 (struct ldap_search_state *)search->private_data;
4466         bool result;
4467
4468  retry:
4469         if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
4470                 return False;
4471
4472         if ((state->entries == NULL) &&
4473             !ldapsam_search_nextpage(search))
4474                     return False;
4475
4476         if (state->current_entry == NULL) {
4477                 return false;
4478         }
4479
4480         result = state->ldap2displayentry(state, search,
4481                                           state->connection->ldap_struct,
4482                                           state->current_entry, entry);
4483
4484         if (!result) {
4485                 char *dn;
4486                 dn = ldap_get_dn(state->connection->ldap_struct, state->current_entry);
4487                 DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
4488                 if (dn != NULL) ldap_memfree(dn);
4489         }
4490
4491         state->current_entry = ldap_next_entry(state->connection->ldap_struct, state->current_entry);
4492
4493         if (state->current_entry == NULL) {
4494                 ldap_msgfree(state->entries);
4495                 state->entries = NULL;
4496         }
4497
4498         if (!result) goto retry;
4499
4500         return True;
4501 }
4502
4503 static void ldapsam_search_end(struct pdb_search *search)
4504 {
4505         struct ldap_search_state *state =
4506                 (struct ldap_search_state *)search->private_data;
4507         int rc;
4508
4509         if (state->pagedresults_cookie == NULL)
4510                 return;
4511
4512         if (state->entries != NULL)
4513                 ldap_msgfree(state->entries);
4514
4515         state->entries = NULL;
4516         state->current_entry = NULL;
4517
4518         if (!state->connection->paged_results)
4519                 return;
4520
4521         /* Tell the LDAP server we're not interested in the rest anymore. */
4522
4523         rc = smbldap_search_paged(state->connection, state->base, state->scope,
4524                                   state->filter, state->attrs,
4525                                   state->attrsonly, 0, &state->entries,
4526                                   &state->pagedresults_cookie);
4527
4528         if (rc != LDAP_SUCCESS)
4529                 DEBUG(5, ("Could not end search properly\n"));
4530
4531         return;
4532 }
4533
4534 static bool ldapuser2displayentry(struct ldap_search_state *state,
4535                                   TALLOC_CTX *mem_ctx,
4536                                   LDAP *ld, LDAPMessage *entry,
4537                                   struct samr_displayentry *result)
4538 {
4539         char **vals;
4540         size_t converted_size;
4541         struct dom_sid sid;
4542         uint32_t acct_flags;
4543
4544         vals = ldap_get_values(ld, entry, "sambaAcctFlags");
4545         if ((vals == NULL) || (vals[0] == NULL)) {
4546                 DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
4547                 return False;
4548         }
4549         acct_flags = pdb_decode_acct_ctrl(vals[0]);
4550         ldap_value_free(vals);
4551
4552         if ((state->acct_flags != 0) &&
4553             ((state->acct_flags & acct_flags) == 0))
4554                 return False;
4555
4556         result->acct_flags = acct_flags;
4557         result->account_name = "";
4558         result->fullname = "";
4559         result->description = "";
4560
4561         vals = ldap_get_values(ld, entry, "uid");
4562         if ((vals == NULL) || (vals[0] == NULL)) {
4563                 DEBUG(5, ("\"uid\" not found\n"));
4564                 return False;
4565         }
4566         if (!pull_utf8_talloc(mem_ctx,
4567                               discard_const_p(char *, &result->account_name),
4568                               vals[0], &converted_size))
4569         {
4570                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4571                          strerror(errno)));
4572         }
4573
4574         ldap_value_free(vals);
4575
4576         vals = ldap_get_values(ld, entry, "displayName");
4577         if ((vals == NULL) || (vals[0] == NULL))
4578                 DEBUG(8, ("\"displayName\" not found\n"));
4579         else if (!pull_utf8_talloc(mem_ctx,
4580                                    discard_const_p(char *, &result->fullname),
4581                                    vals[0], &converted_size))
4582         {
4583                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4584                          strerror(errno)));
4585         }
4586
4587         ldap_value_free(vals);
4588
4589         vals = ldap_get_values(ld, entry, "description");
4590         if ((vals == NULL) || (vals[0] == NULL))
4591                 DEBUG(8, ("\"description\" not found\n"));
4592         else if (!pull_utf8_talloc(mem_ctx,
4593                                    discard_const_p(char *, &result->description),
4594                                    vals[0], &converted_size))
4595         {
4596                 DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s",
4597                          strerror(errno)));
4598         }
4599
4600         ldap_value_free(vals);
4601
4602         if ((result->account_name == NULL) ||
4603             (result->fullname == NULL) ||
4604             (result->description == NULL)) {
4605                 DEBUG(0, ("talloc failed\n"));
4606                 return False;
4607         }
4608
4609         vals = ldap_get_values(ld, entry, "sambaSid");
4610         if ((vals == NULL) || (vals[0] == NULL)) {
4611                 DEBUG(0, ("\"objectSid\" not found\n"));
4612                 return False;
4613         }
4614
4615         if (!string_to_sid(&sid, vals[0])) {
4616                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4617                 ldap_value_free(vals);
4618                 return False;
4619         }
4620         ldap_value_free(vals);
4621
4622         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
4623                 DEBUG(0, ("sid %s does not belong to our domain\n",
4624                           sid_string_dbg(&sid)));
4625                 return False;
4626         }
4627
4628         return True;
4629 }
4630
4631
4632 static bool ldapsam_search_users(struct pdb_methods *methods,
4633                                  struct pdb_search *search,
4634                                  uint32_t acct_flags)
4635 {
4636         struct ldapsam_privates *ldap_state =
4637                 (struct ldapsam_privates *)methods->private_data;
4638         struct ldap_search_state *state;
4639
4640         state = talloc(search, struct ldap_search_state);
4641         if (state == NULL) {
4642                 DEBUG(0, ("talloc failed\n"));
4643                 return False;
4644         }
4645
4646         state->connection = ldap_state->smbldap_state;
4647
4648         if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
4649                 state->base = lp_ldap_user_suffix();
4650         else if ((acct_flags != 0) &&
4651                  ((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
4652                 state->base = lp_ldap_machine_suffix();
4653         else
4654                 state->base = lp_ldap_suffix();
4655
4656         state->acct_flags = acct_flags;
4657         state->base = talloc_strdup(search, state->base);
4658         state->scope = LDAP_SCOPE_SUBTREE;
4659         state->filter = get_ldap_filter(search, "*");
4660         state->attrs = talloc_attrs(search, "uid", "sambaSid",
4661                                     "displayName", "description",
4662                                     "sambaAcctFlags", NULL);
4663         state->attrsonly = 0;
4664         state->pagedresults_cookie = NULL;
4665         state->entries = NULL;
4666         state->ldap2displayentry = ldapuser2displayentry;
4667
4668         if ((state->filter == NULL) || (state->attrs == NULL)) {
4669                 DEBUG(0, ("talloc failed\n"));
4670                 return False;
4671         }
4672
4673         search->private_data = state;
4674         search->next_entry = ldapsam_search_next_entry;
4675         search->search_end = ldapsam_search_end;
4676
4677         return ldapsam_search_firstpage(search);
4678 }
4679
4680 static bool ldapgroup2displayentry(struct ldap_search_state *state,
4681                                    TALLOC_CTX *mem_ctx,
4682                                    LDAP *ld, LDAPMessage *entry,
4683                                    struct samr_displayentry *result)
4684 {
4685         char **vals;
4686         size_t converted_size;
4687         struct dom_sid sid;
4688         uint16_t group_type;
4689
4690         result->account_name = "";
4691         result->fullname = "";
4692         result->description = "";
4693
4694
4695         vals = ldap_get_values(ld, entry, "sambaGroupType");
4696         if ((vals == NULL) || (vals[0] == NULL)) {
4697                 DEBUG(5, ("\"sambaGroupType\" not found\n"));
4698                 if (vals != NULL) {
4699                         ldap_value_free(vals);
4700                 }
4701                 return False;
4702         }
4703
4704         group_type = atoi(vals[0]);
4705
4706         if ((state->group_type != 0) &&
4707             ((state->group_type != group_type))) {
4708                 ldap_value_free(vals);
4709                 return False;
4710         }
4711
4712         ldap_value_free(vals);
4713
4714         /* display name is the NT group name */
4715
4716         vals = ldap_get_values(ld, entry, "displayName");
4717         if ((vals == NULL) || (vals[0] == NULL)) {
4718                 DEBUG(8, ("\"displayName\" not found\n"));
4719
4720                 /* fallback to the 'cn' attribute */
4721                 vals = ldap_get_values(ld, entry, "cn");
4722                 if ((vals == NULL) || (vals[0] == NULL)) {
4723                         DEBUG(5, ("\"cn\" not found\n"));
4724                         return False;
4725                 }
4726                 if (!pull_utf8_talloc(mem_ctx,
4727                                       discard_const_p(char *,
4728                                                     &result->account_name),
4729                                       vals[0], &converted_size))
4730                 {
4731                         DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc "
4732                                   "failed: %s", strerror(errno)));
4733                 }
4734         }
4735         else if (!pull_utf8_talloc(mem_ctx,
4736                                    discard_const_p(char *,
4737                                                  &result->account_name),
4738                                    vals[0], &converted_size))
4739         {
4740                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4741                           strerror(errno)));
4742         }
4743
4744         ldap_value_free(vals);
4745
4746         vals = ldap_get_values(ld, entry, "description");
4747         if ((vals == NULL) || (vals[0] == NULL))
4748                 DEBUG(8, ("\"description\" not found\n"));
4749         else if (!pull_utf8_talloc(mem_ctx,
4750                                    discard_const_p(char *, &result->description),
4751                                    vals[0], &converted_size))
4752         {
4753                 DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s",
4754                           strerror(errno)));
4755         }
4756         ldap_value_free(vals);
4757
4758         if ((result->account_name == NULL) ||
4759             (result->fullname == NULL) ||
4760             (result->description == NULL)) {
4761                 DEBUG(0, ("talloc failed\n"));
4762                 return False;
4763         }
4764
4765         vals = ldap_get_values(ld, entry, "sambaSid");
4766         if ((vals == NULL) || (vals[0] == NULL)) {
4767                 DEBUG(0, ("\"objectSid\" not found\n"));
4768                 if (vals != NULL) {
4769                         ldap_value_free(vals);
4770                 }
4771                 return False;
4772         }
4773
4774         if (!string_to_sid(&sid, vals[0])) {
4775                 DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
4776                 return False;
4777         }
4778
4779         ldap_value_free(vals);
4780
4781         switch (group_type) {
4782                 case SID_NAME_DOM_GRP:
4783                 case SID_NAME_ALIAS:
4784
4785                         if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
4786                                 && !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
4787                         {
4788                                 DEBUG(0, ("%s is not in our domain\n",
4789                                           sid_string_dbg(&sid)));
4790                                 return False;
4791                         }
4792                         break;
4793
4794                 default:
4795                         DEBUG(0,("unknown group type: %d\n", group_type));
4796                         return False;
4797         }
4798
4799         result->acct_flags = 0;
4800
4801         return True;
4802 }
4803
4804 static bool ldapsam_search_grouptype(struct pdb_methods *methods,
4805                                      struct pdb_search *search,
4806                                      const struct dom_sid *sid,
4807                                      enum lsa_SidType type)
4808 {
4809         struct ldapsam_privates *ldap_state =
4810                 (struct ldapsam_privates *)methods->private_data;
4811         struct ldap_search_state *state;
4812         fstring tmp;
4813
4814         state = talloc(search, struct ldap_search_state);
4815         if (state == NULL) {
4816                 DEBUG(0, ("talloc failed\n"));
4817                 return False;
4818         }
4819
4820         state->connection = ldap_state->smbldap_state;
4821
4822         state->base = talloc_strdup(search, lp_ldap_suffix());
4823         state->connection = ldap_state->smbldap_state;
4824         state->scope = LDAP_SCOPE_SUBTREE;
4825         state->filter = talloc_asprintf(search, "(&(objectclass=%s)"
4826                                         "(sambaGroupType=%d)(sambaSID=%s*))",
4827                                          LDAP_OBJ_GROUPMAP,
4828                                          type, sid_to_fstring(tmp, sid));
4829         state->attrs = talloc_attrs(search, "cn", "sambaSid",
4830                                     "displayName", "description",
4831                                     "sambaGroupType", NULL);
4832         state->attrsonly = 0;
4833         state->pagedresults_cookie = NULL;
4834         state->entries = NULL;
4835         state->group_type = type;
4836         state->ldap2displayentry = ldapgroup2displayentry;
4837
4838         if ((state->filter == NULL) || (state->attrs == NULL)) {
4839                 DEBUG(0, ("talloc failed\n"));
4840                 return False;
4841         }
4842
4843         search->private_data = state;
4844         search->next_entry = ldapsam_search_next_entry;
4845         search->search_end = ldapsam_search_end;
4846
4847         return ldapsam_search_firstpage(search);
4848 }
4849
4850 static bool ldapsam_search_groups(struct pdb_methods *methods,
4851                                   struct pdb_search *search)
4852 {
4853         return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
4854 }
4855
4856 static bool ldapsam_search_aliases(struct pdb_methods *methods,
4857                                    struct pdb_search *search,
4858                                    const struct dom_sid *sid)
4859 {
4860         return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
4861 }
4862
4863 static uint32_t ldapsam_capabilities(struct pdb_methods *methods)
4864 {
4865         return PDB_CAP_STORE_RIDS;
4866 }
4867
4868 static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
4869                                     uint32_t *rid)
4870 {
4871         struct smbldap_state *smbldap_state = priv->smbldap_state;
4872
4873         LDAPMessage *result = NULL;
4874         LDAPMessage *entry = NULL;
4875         LDAPMod **mods = NULL;
4876         NTSTATUS status;
4877         char *value;
4878         int rc;
4879         uint32_t nextRid = 0;
4880         const char *dn;
4881
4882         TALLOC_CTX *mem_ctx;
4883
4884         mem_ctx = talloc_new(NULL);
4885         if (mem_ctx == NULL) {
4886                 DEBUG(0, ("talloc_new failed\n"));
4887                 return NT_STATUS_NO_MEMORY;
4888         }
4889
4890         status = smbldap_search_domain_info(smbldap_state, &result,
4891                                             get_global_sam_name(), False);
4892         if (!NT_STATUS_IS_OK(status)) {
4893                 DEBUG(3, ("Could not get domain info: %s\n",
4894                           nt_errstr(status)));
4895                 goto done;
4896         }
4897
4898         talloc_autofree_ldapmsg(mem_ctx, result);
4899
4900         entry = ldap_first_entry(priv2ld(priv), result);
4901         if (entry == NULL) {
4902                 DEBUG(0, ("Could not get domain info entry\n"));
4903                 status = NT_STATUS_INTERNAL_DB_CORRUPTION;
4904                 goto done;
4905         }
4906
4907         /* Find the largest of the three attributes "sambaNextRid",
4908            "sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
4909            concept of differentiating between user and group rids, and will
4910            use only "sambaNextRid" in the future. But for compatibility
4911            reasons I look if others have chosen different strategies -- VL */
4912
4913         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4914                                                 "sambaNextRid", mem_ctx);
4915         if (value != NULL) {
4916                 uint32_t tmp = (uint32_t)strtoul(value, NULL, 10);
4917                 nextRid = MAX(nextRid, tmp);
4918         }
4919
4920         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4921                                                 "sambaNextUserRid", mem_ctx);
4922         if (value != NULL) {
4923                 uint32_t tmp = (uint32_t)strtoul(value, NULL, 10);
4924                 nextRid = MAX(nextRid, tmp);
4925         }
4926
4927         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
4928                                                 "sambaNextGroupRid", mem_ctx);
4929         if (value != NULL) {
4930                 uint32_t tmp = (uint32_t)strtoul(value, NULL, 10);
4931                 nextRid = MAX(nextRid, tmp);
4932         }
4933
4934         if (nextRid == 0) {
4935                 nextRid = BASE_RID-1;
4936         }
4937
4938         nextRid += 1;
4939
4940         smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
4941                          talloc_asprintf(mem_ctx, "%d", nextRid));
4942         talloc_autofree_ldapmod(mem_ctx, mods);
4943
4944         if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
4945                 status = NT_STATUS_NO_MEMORY;
4946                 goto done;
4947         }
4948
4949         rc = smbldap_modify(smbldap_state, dn, mods);
4950
4951         /* ACCESS_DENIED is used as a placeholder for "the modify failed,
4952          * please retry" */
4953
4954         status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
4955
4956  done:
4957         if (NT_STATUS_IS_OK(status)) {
4958                 *rid = nextRid;
4959         }
4960
4961         TALLOC_FREE(mem_ctx);
4962         return status;
4963 }
4964
4965 static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32_t *rid)
4966 {
4967         int i;
4968
4969         for (i=0; i<10; i++) {
4970                 NTSTATUS result = ldapsam_get_new_rid(
4971                         (struct ldapsam_privates *)methods->private_data, rid);
4972                 if (NT_STATUS_IS_OK(result)) {
4973                         return result;
4974                 }
4975
4976                 if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
4977                         return result;
4978                 }
4979
4980                 /* The ldap update failed (maybe a race condition), retry */
4981         }
4982
4983         /* Tried 10 times, fail. */
4984         return NT_STATUS_ACCESS_DENIED;
4985 }
4986
4987 static bool ldapsam_new_rid(struct pdb_methods *methods, uint32_t *rid)
4988 {
4989         NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
4990         return NT_STATUS_IS_OK(result) ? True : False;
4991 }
4992
4993 static bool ldapsam_sid_to_id(struct pdb_methods *methods,
4994                               const struct dom_sid *sid,
4995                               union unid_t *id, enum lsa_SidType *type)
4996 {
4997         struct ldapsam_privates *priv =
4998                 (struct ldapsam_privates *)methods->private_data;
4999         char *filter;
5000         const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
5001                                 NULL };
5002         LDAPMessage *result = NULL;
5003         LDAPMessage *entry = NULL;
5004         bool ret = False;
5005         char *value;
5006         int rc;
5007
5008         TALLOC_CTX *mem_ctx;
5009
5010         mem_ctx = talloc_new(NULL);
5011         if (mem_ctx == NULL) {
5012                 DEBUG(0, ("talloc_new failed\n"));
5013                 return False;
5014         }
5015
5016         filter = talloc_asprintf(mem_ctx,
5017                                  "(&(sambaSid=%s)"
5018                                  "(|(objectClass=%s)(objectClass=%s)))",
5019                                  sid_string_talloc(mem_ctx, sid),
5020                                  LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
5021         if (filter == NULL) {
5022                 DEBUG(5, ("talloc_asprintf failed\n"));
5023                 goto done;
5024         }
5025
5026         rc = smbldap_search_suffix(priv->smbldap_state, filter,
5027                                    attrs, &result);
5028         if (rc != LDAP_SUCCESS) {
5029                 goto done;
5030         }
5031         talloc_autofree_ldapmsg(mem_ctx, result);
5032
5033         if (ldap_count_entries(priv2ld(priv), result) != 1) {
5034                 DEBUG(10, ("Got %d entries, expected one\n",
5035                            ldap_count_entries(priv2ld(priv), result)));
5036                 goto done;
5037         }
5038
5039         entry = ldap_first_entry(priv2ld(priv), result);
5040
5041         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5042                                                 "sambaGroupType", mem_ctx);
5043
5044         if (value != NULL) {
5045                 const char *gid_str;
5046                 /* It's a group */
5047
5048                 gid_str = smbldap_talloc_single_attribute(
5049                         priv2ld(priv), entry, "gidNumber", mem_ctx);
5050                 if (gid_str == NULL) {
5051                         DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
5052                                   smbldap_talloc_dn(mem_ctx, priv2ld(priv),
5053                                                     entry)));
5054                         goto done;
5055                 }
5056
5057                 id->gid = strtoul(gid_str, NULL, 10);
5058                 *type = (enum lsa_SidType)strtoul(value, NULL, 10);
5059                 store_gid_sid_cache(sid, id->gid);
5060                 idmap_cache_set_sid2gid(sid, id->gid);
5061                 ret = True;
5062                 goto done;
5063         }
5064
5065         /* It must be a user */
5066
5067         value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5068                                                 "uidNumber", mem_ctx);
5069         if (value == NULL) {
5070                 DEBUG(1, ("Could not find uidNumber in %s\n",
5071                           smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
5072                 goto done;
5073         }
5074
5075         id->uid = strtoul(value, NULL, 10);
5076         *type = SID_NAME_USER;
5077         store_uid_sid_cache(sid, id->uid);
5078         idmap_cache_set_sid2uid(sid, id->uid);
5079
5080         ret = True;
5081  done:
5082         TALLOC_FREE(mem_ctx);
5083         return ret;
5084 }
5085
5086 /**
5087  * Find the SID for a uid.
5088  * This is shortcut is only used if ldapsam:trusted is set to true.
5089  */
5090 static bool ldapsam_uid_to_sid(struct pdb_methods *methods, uid_t uid,
5091                                struct dom_sid *sid)
5092 {
5093         struct ldapsam_privates *priv =
5094                 (struct ldapsam_privates *)methods->private_data;
5095         char *filter;
5096         const char *attrs[] = { "sambaSID", NULL };
5097         LDAPMessage *result = NULL;
5098         LDAPMessage *entry = NULL;
5099         bool ret = false;
5100         char *user_sid_string;
5101         struct dom_sid user_sid;
5102         int rc;
5103         TALLOC_CTX *tmp_ctx = talloc_stackframe();
5104
5105         filter = talloc_asprintf(tmp_ctx,
5106                                  "(&(uidNumber=%u)"
5107                                  "(objectClass=%s)"
5108                                  "(objectClass=%s))",
5109                                  (unsigned int)uid,
5110                                  LDAP_OBJ_POSIXACCOUNT,
5111                                  LDAP_OBJ_SAMBASAMACCOUNT);
5112         if (filter == NULL) {
5113                 DEBUG(3, ("talloc_asprintf failed\n"));
5114                 goto done;
5115         }
5116
5117         rc = smbldap_search_suffix(priv->smbldap_state, filter, attrs, &result);
5118         if (rc != LDAP_SUCCESS) {
5119                 goto done;
5120         }
5121         talloc_autofree_ldapmsg(tmp_ctx, result);
5122
5123         if (ldap_count_entries(priv2ld(priv), result) != 1) {
5124                 DEBUG(3, ("ERROR: Got %d entries for uid %u, expected one\n",
5125                            ldap_count_entries(priv2ld(priv), result),
5126                            (unsigned int)uid));
5127                 goto done;
5128         }
5129
5130         entry = ldap_first_entry(priv2ld(priv), result);
5131
5132         user_sid_string = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5133                                                           "sambaSID", tmp_ctx);
5134         if (user_sid_string == NULL) {
5135                 DEBUG(1, ("Could not find sambaSID in object '%s'\n",
5136                           smbldap_talloc_dn(tmp_ctx, priv2ld(priv), entry)));
5137                 goto done;
5138         }
5139
5140         if (!string_to_sid(&user_sid, user_sid_string)) {
5141                 DEBUG(3, ("Error calling sid_string_talloc for sid '%s'\n",
5142                           user_sid_string));
5143                 goto done;
5144         }
5145
5146         sid_copy(sid, &user_sid);
5147
5148         store_uid_sid_cache(sid, uid);
5149         idmap_cache_set_sid2uid(sid, uid);
5150
5151         ret = true;
5152
5153  done:
5154         TALLOC_FREE(tmp_ctx);
5155         return ret;
5156 }
5157
5158 /**
5159  * Find the SID for a gid.
5160  * This is shortcut is only used if ldapsam:trusted is set to true.
5161  */
5162 static bool ldapsam_gid_to_sid(struct pdb_methods *methods, gid_t gid,
5163                                struct dom_sid *sid)
5164 {
5165         struct ldapsam_privates *priv =
5166                 (struct ldapsam_privates *)methods->private_data;
5167         char *filter;
5168         const char *attrs[] = { "sambaSID", NULL };
5169         LDAPMessage *result = NULL;
5170         LDAPMessage *entry = NULL;
5171         bool ret = false;
5172         char *group_sid_string;
5173         struct dom_sid group_sid;
5174         int rc;
5175         TALLOC_CTX *tmp_ctx = talloc_stackframe();
5176
5177         filter = talloc_asprintf(tmp_ctx,
5178                                  "(&(gidNumber=%u)"
5179                                  "(objectClass=%s))",
5180                                  (unsigned int)gid,
5181                                  LDAP_OBJ_GROUPMAP);
5182         if (filter == NULL) {
5183                 DEBUG(3, ("talloc_asprintf failed\n"));
5184                 goto done;
5185         }
5186
5187         rc = smbldap_search_suffix(priv->smbldap_state, filter, attrs, &result);
5188         if (rc != LDAP_SUCCESS) {
5189                 goto done;
5190         }
5191         talloc_autofree_ldapmsg(tmp_ctx, result);
5192
5193         if (ldap_count_entries(priv2ld(priv), result) != 1) {
5194                 DEBUG(3, ("ERROR: Got %d entries for gid %u, expected one\n",
5195                            ldap_count_entries(priv2ld(priv), result),
5196                            (unsigned int)gid));
5197                 goto done;
5198         }
5199
5200         entry = ldap_first_entry(priv2ld(priv), result);
5201
5202         group_sid_string = smbldap_talloc_single_attribute(priv2ld(priv), entry,
5203                                                           "sambaSID", tmp_ctx);
5204         if (group_sid_string == NULL) {
5205                 DEBUG(1, ("Could not find sambaSID in object '%s'\n",
5206                           smbldap_talloc_dn(tmp_ctx, priv2ld(priv), entry)));
5207                 goto done;
5208         }
5209
5210         if (!string_to_sid(&group_sid, group_sid_string)) {
5211                 DEBUG(3, ("Error calling sid_string_talloc for sid '%s'\n",
5212                           group_sid_string));
5213                 goto done;
5214         }
5215
5216         sid_copy(sid, &group_sid);
5217
5218         store_gid_sid_cache(sid, gid);
5219         idmap_cache_set_sid2gid(sid, gid);
5220
5221         ret = true;
5222
5223  done:
5224         TALLOC_FREE(tmp_ctx);
5225         return ret;
5226 }
5227
5228
5229 /*
5230  * The following functions are called only if
5231  * ldapsam:trusted and ldapsam:editposix are
5232  * set to true
5233  */
5234
5235 /*
5236  * ldapsam_create_user creates a new
5237  * posixAccount and sambaSamAccount object
5238  * in the ldap users subtree
5239  *
5240  * The uid is allocated by winbindd.
5241  */
5242
5243 static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
5244                                     TALLOC_CTX *tmp_ctx, const char *name,
5245                                     uint32_t acb_info, uint32_t *rid)
5246 {
5247         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5248         LDAPMessage *entry = NULL;
5249         LDAPMessage *result = NULL;
5250         uint32_t num_result;
5251         bool is_machine = False;
5252         bool add_posix = False;
5253         LDAPMod **mods = NULL;
5254         struct samu *user;
5255         char *filter;
5256         char *username;
5257         char *homedir;
5258         char *gidstr;
5259         char *uidstr;
5260         char *shell;
5261         const char *dn = NULL;
5262         struct dom_sid group_sid;
5263         struct dom_sid user_sid;
5264         gid_t gid = -1;
5265         uid_t uid = -1;
5266         NTSTATUS ret;
5267         int rc;
5268
5269         if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
5270               acb_info & ACB_WSTRUST ||
5271               acb_info & ACB_SVRTRUST ||
5272               acb_info & ACB_DOMTRUST) {
5273                 is_machine = True;
5274         }
5275
5276         username = escape_ldap_string(talloc_tos(), name);
5277         filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
5278                                  username, LDAP_OBJ_POSIXACCOUNT);
5279         TALLOC_FREE(username);
5280
5281         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5282         if (rc != LDAP_SUCCESS) {
5283                 DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
5284                 return NT_STATUS_ACCESS_DENIED;
5285         }
5286         talloc_autofree_ldapmsg(tmp_ctx, result);
5287
5288         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5289
5290         if (num_result > 1) {
5291                 DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
5292                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5293         }
5294
5295         if (num_result == 1) {
5296                 char *tmp;
5297                 /* check if it is just a posix account.
5298                  * or if there is a sid attached to this entry
5299                  */
5300
5301                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5302                 if (!entry) {
5303                         return NT_STATUS_UNSUCCESSFUL;
5304                 }
5305
5306                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5307                 if (tmp) {
5308                         DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
5309                         return NT_STATUS_USER_EXISTS;
5310                 }
5311
5312                 /* it is just a posix account, retrieve the dn for later use */
5313                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5314                 if (!dn) {
5315                         DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
5316                         return NT_STATUS_NO_MEMORY;
5317                 }
5318         }
5319
5320         if (num_result == 0) {
5321                 add_posix = True;
5322         }
5323
5324         /* Create the basic samu structure and generate the mods for the ldap commit */
5325         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5326                 DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
5327                 return ret;
5328         }
5329
5330         sid_compose(&user_sid, get_global_sam_sid(), *rid);
5331
5332         user = samu_new(tmp_ctx);
5333         if (!user) {
5334                 DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
5335                 return NT_STATUS_NO_MEMORY;
5336         }
5337
5338         if (!pdb_set_username(user, name, PDB_SET)) {
5339                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5340                 return NT_STATUS_UNSUCCESSFUL;
5341         }
5342         if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
5343                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5344                 return NT_STATUS_UNSUCCESSFUL;
5345         }
5346         if (is_machine) {
5347                 if (acb_info & ACB_NORMAL) {
5348                         if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
5349                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5350                                 return NT_STATUS_UNSUCCESSFUL;
5351                         }
5352                 } else {
5353                         if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
5354                                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5355                                 return NT_STATUS_UNSUCCESSFUL;
5356                         }
5357                 }
5358         } else {
5359                 if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
5360                         DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5361                         return NT_STATUS_UNSUCCESSFUL;
5362                 }
5363         }
5364
5365         if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
5366                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5367                 return NT_STATUS_UNSUCCESSFUL;
5368         }
5369
5370         if (!init_ldap_from_sam(ldap_state, entry, &mods, user, element_is_set_or_changed)) {
5371                 DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
5372                 return NT_STATUS_UNSUCCESSFUL;
5373         }
5374
5375         if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
5376                 DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
5377         }
5378         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
5379
5380         if (add_posix) {
5381                 char *escape_name;
5382
5383                 DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
5384
5385                 /* retrieve the Domain Users group gid */
5386                 if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_RID_USERS) ||
5387                     !sid_to_gid(&group_sid, &gid)) {
5388                         DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
5389                         return NT_STATUS_INVALID_PRIMARY_GROUP;
5390                 }
5391
5392                 /* lets allocate a new userid for this user */
5393                 if (!winbind_allocate_uid(&uid)) {
5394                         DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
5395                         return NT_STATUS_UNSUCCESSFUL;
5396                 }
5397
5398
5399                 if (is_machine) {
5400                         /* TODO: choose a more appropriate default for machines */
5401                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), "SMB_workstations_home", ldap_state->domain_name, uid, gid);
5402                         shell = talloc_strdup(tmp_ctx, "/bin/false");
5403                 } else {
5404                         homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
5405                         shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
5406                 }
5407                 uidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)uid);
5408                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5409
5410                 escape_name = escape_rdn_val_string_alloc(name);
5411                 if (!escape_name) {
5412                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5413                         return NT_STATUS_NO_MEMORY;
5414                 }
5415
5416                 if (is_machine) {
5417                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix ());
5418                 } else {
5419                         dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix ());
5420                 }
5421
5422                 SAFE_FREE(escape_name);
5423
5424                 if (!homedir || !shell || !uidstr || !gidstr || !dn) {
5425                         DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
5426                         return NT_STATUS_NO_MEMORY;
5427                 }
5428
5429                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
5430                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
5431                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5432                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
5433                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5434                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
5435                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
5436         }
5437
5438         talloc_autofree_ldapmod(tmp_ctx, mods);
5439
5440         if (add_posix) {
5441                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5442         } else {
5443                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5444         }
5445
5446         if (rc != LDAP_SUCCESS) {
5447                 DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
5448                 return NT_STATUS_UNSUCCESSFUL;
5449         }
5450
5451         DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
5452
5453         flush_pwnam_cache();
5454
5455         return NT_STATUS_OK;
5456 }
5457
5458 static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
5459 {
5460         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5461         LDAPMessage *result = NULL;
5462         LDAPMessage *entry = NULL;
5463         int num_result;
5464         const char *dn;
5465         char *filter;
5466         int rc;
5467
5468         DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
5469
5470         filter = talloc_asprintf(tmp_ctx,
5471                                  "(&(uid=%s)"
5472                                  "(objectClass=%s)"
5473                                  "(objectClass=%s))",
5474                                  pdb_get_username(sam_acct),
5475                                  LDAP_OBJ_POSIXACCOUNT,
5476                                  LDAP_OBJ_SAMBASAMACCOUNT);
5477         if (filter == NULL) {
5478                 return NT_STATUS_NO_MEMORY;
5479         }
5480
5481         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5482         if (rc != LDAP_SUCCESS) {
5483                 DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
5484                 return NT_STATUS_UNSUCCESSFUL;
5485         }
5486         talloc_autofree_ldapmsg(tmp_ctx, result);
5487
5488         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5489
5490         if (num_result == 0) {
5491                 DEBUG(0,("ldapsam_delete_user: user not found!\n"));
5492                 return NT_STATUS_NO_SUCH_USER;
5493         }
5494
5495         if (num_result > 1) {
5496                 DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
5497                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5498         }
5499
5500         entry = ldap_first_entry(priv2ld(ldap_state), result);
5501         if (!entry) {
5502                 return NT_STATUS_UNSUCCESSFUL;
5503         }
5504
5505         /* it is just a posix account, retrieve the dn for later use */
5506         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5507         if (!dn) {
5508                 DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
5509                 return NT_STATUS_NO_MEMORY;
5510         }
5511
5512         /* try to remove memberships first */
5513         {
5514                 NTSTATUS status;
5515                 struct dom_sid *sids = NULL;
5516                 gid_t *gids = NULL;
5517                 uint32_t num_groups = 0;
5518                 int i;
5519                 uint32_t user_rid = pdb_get_user_rid(sam_acct);
5520
5521                 status = ldapsam_enum_group_memberships(my_methods,
5522                                                         tmp_ctx,
5523                                                         sam_acct,
5524                                                         &sids,
5525                                                         &gids,
5526                                                         &num_groups);
5527                 if (!NT_STATUS_IS_OK(status)) {
5528                         goto delete_dn;
5529                 }
5530
5531                 for (i=0; i < num_groups; i++) {
5532
5533                         uint32_t group_rid;
5534
5535                         sid_peek_rid(&sids[i], &group_rid);
5536
5537                         ldapsam_del_groupmem(my_methods,
5538                                              tmp_ctx,
5539                                              group_rid,
5540                                              user_rid);
5541                 }
5542         }
5543
5544  delete_dn:
5545
5546         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5547         if (rc != LDAP_SUCCESS) {
5548                 return NT_STATUS_UNSUCCESSFUL;
5549         }
5550
5551         flush_pwnam_cache();
5552
5553         return NT_STATUS_OK;
5554 }
5555
5556 /*
5557  * ldapsam_create_group creates a new
5558  * posixGroup and sambaGroupMapping object
5559  * in the ldap groups subtree
5560  *
5561  * The gid is allocated by winbindd.
5562  */
5563
5564 static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
5565                                          TALLOC_CTX *tmp_ctx,
5566                                          const char *name,
5567                                          uint32_t *rid)
5568 {
5569         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5570         NTSTATUS ret;
5571         LDAPMessage *entry = NULL;
5572         LDAPMessage *result = NULL;
5573         uint32_t num_result;
5574         bool is_new_entry = False;
5575         LDAPMod **mods = NULL;
5576         char *filter;
5577         char *groupsidstr;
5578         char *groupname;
5579         char *grouptype;
5580         char *gidstr;
5581         const char *dn = NULL;
5582         struct dom_sid group_sid;
5583         gid_t gid = -1;
5584         int rc;
5585
5586         groupname = escape_ldap_string(talloc_tos(), name);
5587         filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
5588                                  groupname, LDAP_OBJ_POSIXGROUP);
5589         TALLOC_FREE(groupname);
5590
5591         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5592         if (rc != LDAP_SUCCESS) {
5593                 DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
5594                 return NT_STATUS_UNSUCCESSFUL;
5595         }
5596         talloc_autofree_ldapmsg(tmp_ctx, result);
5597
5598         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5599
5600         if (num_result > 1) {
5601                 DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
5602                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5603         }
5604
5605         if (num_result == 1) {
5606                 char *tmp;
5607                 /* check if it is just a posix group.
5608                  * or if there is a sid attached to this entry
5609                  */
5610
5611                 entry = ldap_first_entry(priv2ld(ldap_state), result);
5612                 if (!entry) {
5613                         return NT_STATUS_UNSUCCESSFUL;
5614                 }
5615
5616                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
5617                 if (tmp) {
5618                         DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
5619                         return NT_STATUS_GROUP_EXISTS;
5620                 }
5621
5622                 /* it is just a posix group, retrieve the gid and the dn for later use */
5623                 tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5624                 if (!tmp) {
5625                         DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
5626                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5627                 }
5628
5629                 gid = strtoul(tmp, NULL, 10);
5630
5631                 dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5632                 if (!dn) {
5633                         DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5634                         return NT_STATUS_NO_MEMORY;
5635                 }
5636         }
5637
5638         if (num_result == 0) {
5639                 is_new_entry = true;
5640         }
5641
5642         if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
5643                 DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
5644                 return ret;
5645         }
5646
5647         sid_compose(&group_sid, get_global_sam_sid(), *rid);
5648
5649         groupsidstr = talloc_strdup(tmp_ctx, sid_string_talloc(tmp_ctx,
5650                                                                &group_sid));
5651         grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
5652
5653         if (!groupsidstr || !grouptype) {
5654                 DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
5655                 return NT_STATUS_NO_MEMORY;
5656         }
5657
5658         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
5659         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaSid", groupsidstr);
5660         smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
5661         smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
5662
5663         if (is_new_entry) {
5664                 char *escape_name;
5665
5666                 DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
5667
5668                 /* lets allocate a new groupid for this group */
5669                 if (!winbind_allocate_gid(&gid)) {
5670                         DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
5671                         return NT_STATUS_UNSUCCESSFUL;
5672                 }
5673
5674                 gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
5675
5676                 escape_name = escape_rdn_val_string_alloc(name);
5677                 if (!escape_name) {
5678                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5679                         return NT_STATUS_NO_MEMORY;
5680                 }
5681
5682                 dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix());
5683
5684                 SAFE_FREE(escape_name);
5685
5686                 if (!gidstr || !dn) {
5687                         DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
5688                         return NT_STATUS_NO_MEMORY;
5689                 }
5690
5691                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
5692                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
5693                 smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
5694         }
5695
5696         talloc_autofree_ldapmod(tmp_ctx, mods);
5697
5698         if (is_new_entry) {
5699                 rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5700 #if 0
5701                 if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
5702                         /* This call may fail with rfc2307bis schema */
5703                         /* Retry adding a structural class */
5704                         smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
5705                         rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
5706                 }
5707 #endif
5708         } else {
5709                 rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5710         }
5711
5712         if (rc != LDAP_SUCCESS) {
5713                 DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
5714                 return NT_STATUS_UNSUCCESSFUL;
5715         }
5716
5717         DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
5718
5719         return NT_STATUS_OK;
5720 }
5721
5722 static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32_t rid)
5723 {
5724         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5725         LDAPMessage *result = NULL;
5726         LDAPMessage *entry = NULL;
5727         int num_result;
5728         const char *dn;
5729         char *gidstr;
5730         char *filter;
5731         struct dom_sid group_sid;
5732         int rc;
5733
5734         /* get the group sid */
5735         sid_compose(&group_sid, get_global_sam_sid(), rid);
5736
5737         filter = talloc_asprintf(tmp_ctx,
5738                                  "(&(sambaSID=%s)"
5739                                  "(objectClass=%s)"
5740                                  "(objectClass=%s))",
5741                                  sid_string_talloc(tmp_ctx, &group_sid),
5742                                  LDAP_OBJ_POSIXGROUP,
5743                                  LDAP_OBJ_GROUPMAP);
5744         if (filter == NULL) {
5745                 return NT_STATUS_NO_MEMORY;
5746         }
5747
5748         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5749         if (rc != LDAP_SUCCESS) {
5750                 DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
5751                 return NT_STATUS_UNSUCCESSFUL;
5752         }
5753         talloc_autofree_ldapmsg(tmp_ctx, result);
5754
5755         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5756
5757         if (num_result == 0) {
5758                 DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
5759                 return NT_STATUS_NO_SUCH_GROUP;
5760         }
5761
5762         if (num_result > 1) {
5763                 DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
5764                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5765         }
5766
5767         entry = ldap_first_entry(priv2ld(ldap_state), result);
5768         if (!entry) {
5769                 return NT_STATUS_UNSUCCESSFUL;
5770         }
5771
5772         /* here it is, retrieve the dn for later use */
5773         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5774         if (!dn) {
5775                 DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
5776                 return NT_STATUS_NO_MEMORY;
5777         }
5778
5779         gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5780         if (!gidstr) {
5781                 DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
5782                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5783         }
5784
5785         /* check no user have this group marked as primary group */
5786         filter = talloc_asprintf(tmp_ctx,
5787                                  "(&(gidNumber=%s)"
5788                                  "(objectClass=%s)"
5789                                  "(objectClass=%s))",
5790                                  gidstr,
5791                                  LDAP_OBJ_POSIXACCOUNT,
5792                                  LDAP_OBJ_SAMBASAMACCOUNT);
5793
5794         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5795         if (rc != LDAP_SUCCESS) {
5796                 DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
5797                 return NT_STATUS_UNSUCCESSFUL;
5798         }
5799         talloc_autofree_ldapmsg(tmp_ctx, result);
5800
5801         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5802
5803         if (num_result != 0) {
5804                 DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
5805                 return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5806         }
5807
5808         rc = smbldap_delete(ldap_state->smbldap_state, dn);
5809         if (rc != LDAP_SUCCESS) {
5810                 return NT_STATUS_UNSUCCESSFUL;
5811         }
5812
5813         return NT_STATUS_OK;
5814 }
5815
5816 static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
5817                                         TALLOC_CTX *tmp_ctx,
5818                                         uint32_t group_rid,
5819                                         uint32_t member_rid,
5820                                         int modop)
5821 {
5822         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5823         LDAPMessage *entry = NULL;
5824         LDAPMessage *result = NULL;
5825         uint32_t num_result;
5826         LDAPMod **mods = NULL;
5827         char *filter;
5828         char *uidstr;
5829         const char *dn = NULL;
5830         struct dom_sid group_sid;
5831         struct dom_sid member_sid;
5832         int rc;
5833
5834         switch (modop) {
5835         case LDAP_MOD_ADD:
5836                 DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
5837                 break;
5838         case LDAP_MOD_DELETE:
5839                 DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", member_rid, group_rid));
5840                 break;
5841         default:
5842                 return NT_STATUS_UNSUCCESSFUL;
5843         }
5844
5845         /* get member sid  */
5846         sid_compose(&member_sid, get_global_sam_sid(), member_rid);
5847
5848         /* get the group sid */
5849         sid_compose(&group_sid, get_global_sam_sid(), group_rid);
5850
5851         filter = talloc_asprintf(tmp_ctx,
5852                                  "(&(sambaSID=%s)"
5853                                  "(objectClass=%s)"
5854                                  "(objectClass=%s))",
5855                                  sid_string_talloc(tmp_ctx, &member_sid),
5856                                  LDAP_OBJ_POSIXACCOUNT,
5857                                  LDAP_OBJ_SAMBASAMACCOUNT);
5858         if (filter == NULL) {
5859                 return NT_STATUS_NO_MEMORY;
5860         }
5861
5862         /* get the member uid */
5863         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5864         if (rc != LDAP_SUCCESS) {
5865                 DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
5866                 return NT_STATUS_UNSUCCESSFUL;
5867         }
5868         talloc_autofree_ldapmsg(tmp_ctx, result);
5869
5870         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5871
5872         if (num_result == 0) {
5873                 DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
5874                 return NT_STATUS_NO_SUCH_MEMBER;
5875         }
5876
5877         if (num_result > 1) {
5878                 DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
5879                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5880         }
5881
5882         entry = ldap_first_entry(priv2ld(ldap_state), result);
5883         if (!entry) {
5884                 return NT_STATUS_UNSUCCESSFUL;
5885         }
5886
5887         if (modop == LDAP_MOD_DELETE) {
5888                 /* check if we are trying to remove the member from his primary group */
5889                 char *gidstr;
5890                 gid_t user_gid, group_gid;
5891
5892                 gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
5893                 if (!gidstr) {
5894                         DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
5895                         return NT_STATUS_INTERNAL_DB_CORRUPTION;
5896                 }
5897
5898                 user_gid = strtoul(gidstr, NULL, 10);
5899
5900                 if (!sid_to_gid(&group_sid, &group_gid)) {
5901                         DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
5902                         return NT_STATUS_UNSUCCESSFUL;
5903                 }
5904
5905                 if (user_gid == group_gid) {
5906                         DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
5907                         return NT_STATUS_MEMBERS_PRIMARY_GROUP;
5908                 }
5909         }
5910
5911         /* here it is, retrieve the uid for later use */
5912         uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
5913         if (!uidstr) {
5914                 DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
5915                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5916         }
5917
5918         filter = talloc_asprintf(tmp_ctx,
5919                                  "(&(sambaSID=%s)"
5920                                  "(objectClass=%s)"
5921                                  "(objectClass=%s))",
5922                                  sid_string_talloc(tmp_ctx, &group_sid),
5923                                  LDAP_OBJ_POSIXGROUP,
5924                                  LDAP_OBJ_GROUPMAP);
5925
5926         /* get the group */
5927         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
5928         if (rc != LDAP_SUCCESS) {
5929                 DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
5930                 return NT_STATUS_UNSUCCESSFUL;
5931         }
5932         talloc_autofree_ldapmsg(tmp_ctx, result);
5933
5934         num_result = ldap_count_entries(priv2ld(ldap_state), result);
5935
5936         if (num_result == 0) {
5937                 DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
5938                 return NT_STATUS_NO_SUCH_GROUP;
5939         }
5940
5941         if (num_result > 1) {
5942                 DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
5943                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
5944         }
5945
5946         entry = ldap_first_entry(priv2ld(ldap_state), result);
5947         if (!entry) {
5948                 return NT_STATUS_UNSUCCESSFUL;
5949         }
5950
5951         /* here it is, retrieve the dn for later use */
5952         dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
5953         if (!dn) {
5954                 DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
5955                 return NT_STATUS_NO_MEMORY;
5956         }
5957
5958         smbldap_set_mod(&mods, modop, "memberUid", uidstr);
5959
5960         talloc_autofree_ldapmod(tmp_ctx, mods);
5961
5962         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
5963         if (rc != LDAP_SUCCESS) {
5964                 if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
5965                         DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
5966                         return NT_STATUS_MEMBER_IN_GROUP;
5967                 }
5968                 if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
5969                         DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
5970                         return NT_STATUS_MEMBER_NOT_IN_GROUP;
5971                 }
5972                 return NT_STATUS_UNSUCCESSFUL;
5973         }
5974
5975         return NT_STATUS_OK;
5976 }
5977
5978 static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
5979                                      TALLOC_CTX *tmp_ctx,
5980                                      uint32_t group_rid,
5981                                      uint32_t member_rid)
5982 {
5983         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
5984 }
5985 static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
5986                                      TALLOC_CTX *tmp_ctx,
5987                                      uint32_t group_rid,
5988                                      uint32_t member_rid)
5989 {
5990         return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
5991 }
5992
5993 static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
5994                                           TALLOC_CTX *mem_ctx,
5995                                           struct samu *sampass)
5996 {
5997         struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
5998         LDAPMessage *entry = NULL;
5999         LDAPMessage *result = NULL;
6000         uint32_t num_result;
6001         LDAPMod **mods = NULL;
6002         char *filter;
6003         char *escape_username;
6004         char *gidstr;
6005         const char *dn = NULL;
6006         gid_t gid;
6007         int rc;
6008
6009         DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
6010
6011         if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
6012                 DEBUG(0,("ldapsam_set_primary_group: failed to retrieve gid from user's group SID!\n"));
6013                 return NT_STATUS_UNSUCCESSFUL;
6014         }
6015         gidstr = talloc_asprintf(mem_ctx, "%u", (unsigned int)gid);
6016         if (!gidstr) {
6017                 DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
6018                 return NT_STATUS_NO_MEMORY;
6019         }
6020
6021         escape_username = escape_ldap_string(talloc_tos(),
6022                                              pdb_get_username(sampass));
6023         if (escape_username== NULL) {
6024                 return NT_STATUS_NO_MEMORY;
6025         }
6026
6027         filter = talloc_asprintf(mem_ctx,
6028                                  "(&(uid=%s)"
6029                                  "(objectClass=%s)"
6030                                  "(objectClass=%s))",
6031                                  escape_username,
6032                                  LDAP_OBJ_POSIXACCOUNT,
6033                                  LDAP_OBJ_SAMBASAMACCOUNT);
6034
6035         TALLOC_FREE(escape_username);
6036
6037         if (filter == NULL) {
6038                 return NT_STATUS_NO_MEMORY;
6039         }
6040
6041         rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
6042         if (rc != LDAP_SUCCESS) {
6043                 DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
6044                 return NT_STATUS_UNSUCCESSFUL;
6045         }
6046         talloc_autofree_ldapmsg(mem_ctx, result);
6047
6048         num_result = ldap_count_entries(priv2ld(ldap_state), result);
6049
6050         if (num_result == 0) {
6051                 DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
6052                 return NT_STATUS_NO_SUCH_USER;
6053         }
6054
6055         if (num_result > 1) {
6056                 DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
6057                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
6058         }
6059
6060         entry = ldap_first_entry(priv2ld(ldap_state), result);
6061         if (!entry) {
6062                 return NT_STATUS_UNSUCCESSFUL;
6063         }
6064
6065         /* retrieve the dn for later use */
6066         dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
6067         if (!dn) {
6068                 DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
6069                 return NT_STATUS_NO_MEMORY;
6070         }
6071
6072         /* remove the old one, and add the new one, this way we do not risk races */
6073         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
6074
6075         if (mods == NULL) {
6076                 return NT_STATUS_OK;
6077         }
6078
6079         rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
6080
6081         if (rc != LDAP_SUCCESS) {
6082                 DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
6083                          pdb_get_username(sampass), gidstr));
6084                 return NT_STATUS_UNSUCCESSFUL;
6085         }
6086
6087         flush_pwnam_cache();
6088
6089         return NT_STATUS_OK;
6090 }
6091
6092
6093 /**********************************************************************
6094  trusted domains functions
6095  *********************************************************************/
6096
6097 static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
6098                            const char *domain)
6099 {
6100         return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
6101                                ldap_state->domain_dn);
6102 }
6103
6104 static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
6105                                   TALLOC_CTX *mem_ctx,
6106                                   const char *domain, LDAPMessage **entry)
6107 {
6108         int rc;
6109         char *filter;
6110         int scope = LDAP_SCOPE_SUBTREE;
6111         const char **attrs = NULL; /* NULL: get all attrs */
6112         int attrsonly = 0; /* 0: return values too */
6113         LDAPMessage *result = NULL;
6114         char *trusted_dn;
6115         uint32_t num_result;
6116
6117         filter = talloc_asprintf(talloc_tos(),
6118                                  "(&(objectClass=%s)(sambaDomainName=%s))",
6119                                  LDAP_OBJ_TRUSTDOM_PASSWORD, domain);
6120
6121         trusted_dn = trusteddom_dn(ldap_state, domain);
6122         if (trusted_dn == NULL) {
6123                 return False;
6124         }
6125         rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
6126                             filter, attrs, attrsonly, &result);
6127
6128         if (result != NULL) {
6129                 talloc_autofree_ldapmsg(mem_ctx, result);
6130         }
6131
6132         if (rc == LDAP_NO_SUCH_OBJECT) {
6133                 *entry = NULL;
6134                 return True;
6135         }
6136
6137         if (rc != LDAP_SUCCESS) {
6138                 return False;
6139         }
6140
6141         num_result = ldap_count_entries(priv2ld(ldap_state), result);
6142
6143         if (num_result > 1) {
6144                 DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
6145                           "%s object for domain '%s'?!\n",
6146                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
6147                 return False;
6148         }
6149
6150         if (num_result == 0) {
6151                 DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
6152                           "%s object for domain %s.\n",
6153                           LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
6154                 *entry = NULL;
6155         } else {
6156                 *entry = ldap_first_entry(priv2ld(ldap_state), result);
6157         }
6158
6159         return True;
6160 }
6161
6162 static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
6163                                       const char *domain,
6164                                       char** pwd,
6165                                       struct dom_sid *sid,
6166                                       time_t *pass_last_set_time)
6167 {
6168         struct ldapsam_privates *ldap_state =
6169                 (struct ldapsam_privates *)methods->private_data;
6170         LDAPMessage *entry = NULL;
6171
6172         DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
6173
6174         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry) ||
6175             (entry == NULL))
6176         {
6177                 return False;
6178         }
6179
6180         /* password */
6181         if (pwd != NULL) {
6182                 char *pwd_str;
6183                 pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6184                                 entry, "sambaClearTextPassword", talloc_tos());
6185                 if (pwd_str == NULL) {
6186                         return False;
6187                 }
6188                 /* trusteddom_pw routines do not use talloc yet... */
6189                 *pwd = SMB_STRDUP(pwd_str);
6190                 if (*pwd == NULL) {
6191                         return False;
6192                 }
6193         }
6194
6195         /* last change time */
6196         if (pass_last_set_time != NULL) {
6197                 char *time_str;
6198                 time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6199                                 entry, "sambaPwdLastSet", talloc_tos());
6200                 if (time_str == NULL) {
6201                         return False;
6202                 }
6203                 *pass_last_set_time = (time_t)atol(time_str);
6204         }
6205
6206         /* domain sid */
6207         if (sid != NULL) {
6208                 char *sid_str;
6209                 struct dom_sid dom_sid;
6210                 sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6211                                                           entry, "sambaSID",
6212                                                           talloc_tos());
6213                 if (sid_str == NULL) {
6214                         return False;
6215                 }
6216                 if (!string_to_sid(&dom_sid, sid_str)) {
6217                         return False;
6218                 }
6219                 sid_copy(sid, &dom_sid);
6220         }
6221
6222         return True;
6223 }
6224
6225 static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
6226                                       const char* domain,
6227                                       const char* pwd,
6228                                       const struct dom_sid *sid)
6229 {
6230         struct ldapsam_privates *ldap_state =
6231                 (struct ldapsam_privates *)methods->private_data;
6232         LDAPMessage *entry = NULL;
6233         LDAPMod **mods = NULL;
6234         char *prev_pwd = NULL;
6235         char *trusted_dn = NULL;
6236         int rc;
6237
6238         DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
6239
6240         /*
6241          * get the current entry (if there is one) in order to put the
6242          * current password into the previous password attribute
6243          */
6244         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
6245                 return False;
6246         }
6247
6248         mods = NULL;
6249         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
6250                          LDAP_OBJ_TRUSTDOM_PASSWORD);
6251         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
6252                          domain);
6253         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
6254                          sid_string_tos(sid));
6255         smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
6256                          talloc_asprintf(talloc_tos(), "%li", (long int)time(NULL)));
6257         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
6258                          "sambaClearTextPassword", pwd);
6259
6260         if (entry != NULL) {
6261                 prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6262                                 entry, "sambaClearTextPassword", talloc_tos());
6263                 if (prev_pwd != NULL) {
6264                         smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
6265                                          "sambaPreviousClearTextPassword",
6266                                          prev_pwd);
6267                 }
6268         }
6269
6270         talloc_autofree_ldapmod(talloc_tos(), mods);
6271
6272         trusted_dn = trusteddom_dn(ldap_state, domain);
6273         if (trusted_dn == NULL) {
6274                 return False;
6275         }
6276         if (entry == NULL) {
6277                 rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
6278         } else {
6279                 rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
6280         }
6281
6282         if (rc != LDAP_SUCCESS) {
6283                 DEBUG(1, ("error writing trusted domain password!\n"));
6284                 return False;
6285         }
6286
6287         return True;
6288 }
6289
6290 static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
6291                                       const char *domain)
6292 {
6293         int rc;
6294         struct ldapsam_privates *ldap_state =
6295                 (struct ldapsam_privates *)methods->private_data;
6296         LDAPMessage *entry = NULL;
6297         const char *trusted_dn;
6298
6299         if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
6300                 return False;
6301         }
6302
6303         if (entry == NULL) {
6304                 DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
6305                           "%s\n", domain));
6306                 return True;
6307         }
6308
6309         trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
6310                                        entry);
6311         if (trusted_dn == NULL) {
6312                 DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
6313                 return False;
6314         }
6315
6316         rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
6317         if (rc != LDAP_SUCCESS) {
6318                 return False;
6319         }
6320
6321         return True;
6322 }
6323
6324 static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
6325                                          TALLOC_CTX *mem_ctx,
6326                                          uint32_t *num_domains,
6327                                          struct trustdom_info ***domains)
6328 {
6329         int rc;
6330         struct ldapsam_privates *ldap_state =
6331                 (struct ldapsam_privates *)methods->private_data;
6332         char *filter;
6333         int scope = LDAP_SCOPE_SUBTREE;
6334         const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
6335         int attrsonly = 0; /* 0: return values too */
6336         LDAPMessage *result = NULL;
6337         LDAPMessage *entry = NULL;
6338
6339         filter = talloc_asprintf(talloc_tos(), "(objectClass=%s)",
6340                                  LDAP_OBJ_TRUSTDOM_PASSWORD);
6341
6342         rc = smbldap_search(ldap_state->smbldap_state,
6343                             ldap_state->domain_dn,
6344                             scope,
6345                             filter,
6346                             attrs,
6347                             attrsonly,
6348                             &result);
6349
6350         if (result != NULL) {
6351                 talloc_autofree_ldapmsg(mem_ctx, result);
6352         }
6353
6354         if (rc != LDAP_SUCCESS) {
6355                 return NT_STATUS_UNSUCCESSFUL;
6356         }
6357
6358         *num_domains = 0;
6359         if (!(*domains = talloc_array(mem_ctx, struct trustdom_info *, 1))) {
6360                 DEBUG(1, ("talloc failed\n"));
6361                 return NT_STATUS_NO_MEMORY;
6362         }
6363
6364         for (entry = ldap_first_entry(priv2ld(ldap_state), result);
6365              entry != NULL;
6366              entry = ldap_next_entry(priv2ld(ldap_state), entry))
6367         {
6368                 char *dom_name, *dom_sid_str;
6369                 struct trustdom_info *dom_info;
6370
6371                 dom_info = talloc(*domains, struct trustdom_info);
6372                 if (dom_info == NULL) {
6373                         DEBUG(1, ("talloc failed\n"));
6374                         return NT_STATUS_NO_MEMORY;
6375                 }
6376
6377                 dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
6378                                                            entry,
6379                                                            "sambaDomainName",
6380                                                            talloc_tos());
6381                 if (dom_name == NULL) {
6382                         DEBUG(1, ("talloc failed\n"));
6383                         return NT_STATUS_NO_MEMORY;
6384                 }
6385                 dom_info->name = dom_name;
6386
6387                 dom_sid_str = smbldap_talloc_single_attribute(
6388                                         priv2ld(ldap_state), entry, "sambaSID",
6389                                         talloc_tos());
6390                 if (dom_sid_str == NULL) {
6391                         DEBUG(1, ("talloc failed\n"));
6392                         return NT_STATUS_NO_MEMORY;
6393                 }
6394                 if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
6395                         DEBUG(1, ("Error calling string_to_sid on SID %s\n",
6396                                   dom_sid_str));
6397                         return NT_STATUS_UNSUCCESSFUL;
6398                 }
6399
6400                 ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
6401                              domains, num_domains);
6402
6403                 if (*domains == NULL) {
6404                         DEBUG(1, ("talloc failed\n"));
6405                         return NT_STATUS_NO_MEMORY;
6406                 }
6407         }
6408
6409         DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
6410         return NT_STATUS_OK;
6411 }
6412
6413
6414 /**********************************************************************
6415  Housekeeping
6416  *********************************************************************/
6417
6418 static void free_private_data(void **vp)
6419 {
6420         struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
6421
6422         smbldap_free_struct(&(*ldap_state)->smbldap_state);
6423
6424         if ((*ldap_state)->result != NULL) {
6425                 ldap_msgfree((*ldap_state)->result);
6426                 (*ldap_state)->result = NULL;
6427         }
6428         if ((*ldap_state)->domain_dn != NULL) {
6429                 SAFE_FREE((*ldap_state)->domain_dn);
6430         }
6431
6432         *ldap_state = NULL;
6433
6434         /* No need to free any further, as it is talloc()ed */
6435 }
6436
6437 /*********************************************************************
6438  Intitalise the parts of the pdb_methods structure that are common to
6439  all pdb_ldap modes
6440 *********************************************************************/
6441
6442 static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
6443 {
6444         NTSTATUS nt_status;
6445         struct ldapsam_privates *ldap_state;
6446
6447         if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
6448                 return nt_status;
6449         }
6450
6451         (*pdb_method)->name = "ldapsam";
6452
6453         (*pdb_method)->getsampwnam = ldapsam_getsampwnam;
6454         (*pdb_method)->getsampwsid = ldapsam_getsampwsid;
6455         (*pdb_method)->add_sam_account = ldapsam_add_sam_account;
6456         (*pdb_method)->update_sam_account = ldapsam_update_sam_account;
6457         (*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
6458         (*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
6459
6460         (*pdb_method)->getgrsid = ldapsam_getgrsid;
6461         (*pdb_method)->getgrgid = ldapsam_getgrgid;
6462         (*pdb_method)->getgrnam = ldapsam_getgrnam;
6463         (*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
6464         (*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
6465         (*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
6466         (*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
6467
6468         (*pdb_method)->get_account_policy = ldapsam_get_account_policy;
6469         (*pdb_method)->set_account_policy = ldapsam_set_account_policy;
6470
6471         (*pdb_method)->get_seq_num = ldapsam_get_seq_num;
6472
6473         (*pdb_method)->capabilities = ldapsam_capabilities;
6474         (*pdb_method)->new_rid = ldapsam_new_rid;
6475
6476         (*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
6477         (*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
6478         (*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
6479         (*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
6480
6481         /* TODO: Setup private data and free */
6482
6483         if ( !(ldap_state = talloc_zero(*pdb_method, struct ldapsam_privates)) ) {
6484                 DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
6485                 return NT_STATUS_NO_MEMORY;
6486         }
6487
6488         nt_status = smbldap_init(*pdb_method, pdb_get_event_context(),
6489                                  location, &ldap_state->smbldap_state);
6490
6491         if ( !NT_STATUS_IS_OK(nt_status) ) {
6492                 return nt_status;
6493         }
6494
6495         if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
6496                 return NT_STATUS_NO_MEMORY;
6497         }
6498
6499         (*pdb_method)->private_data = ldap_state;
6500
6501         (*pdb_method)->free_private_data = free_private_data;
6502
6503         return NT_STATUS_OK;
6504 }
6505
6506 /**********************************************************************
6507  Initialise the 'compat' mode for pdb_ldap
6508  *********************************************************************/
6509
6510 NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
6511 {
6512         NTSTATUS nt_status;
6513         struct ldapsam_privates *ldap_state;
6514         char *uri = talloc_strdup( NULL, location );
6515
6516         trim_char( uri, '\"', '\"' );
6517         nt_status = pdb_init_ldapsam_common( pdb_method, uri );
6518         if ( uri )
6519                 TALLOC_FREE( uri );
6520
6521         if ( !NT_STATUS_IS_OK(nt_status) ) {
6522                 return nt_status;
6523         }
6524
6525         (*pdb_method)->name = "ldapsam_compat";
6526
6527         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6528         ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
6529
6530         sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6531
6532         return NT_STATUS_OK;
6533 }
6534
6535 /**********************************************************************
6536  Initialise the normal mode for pdb_ldap
6537  *********************************************************************/
6538
6539 NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
6540 {
6541         NTSTATUS nt_status;
6542         struct ldapsam_privates *ldap_state = NULL;
6543         uint32_t alg_rid_base;
6544         char *alg_rid_base_string = NULL;
6545         LDAPMessage *result = NULL;
6546         LDAPMessage *entry = NULL;
6547         struct dom_sid ldap_domain_sid;
6548         struct dom_sid secrets_domain_sid;
6549         char *domain_sid_string = NULL;
6550         char *dn = NULL;
6551         char *uri = talloc_strdup( NULL, location );
6552
6553         trim_char( uri, '\"', '\"' );
6554         nt_status = pdb_init_ldapsam_common(pdb_method, uri);
6555
6556         TALLOC_FREE(uri);
6557
6558         if (!NT_STATUS_IS_OK(nt_status)) {
6559                 return nt_status;
6560         }
6561
6562         (*pdb_method)->name = "ldapsam";
6563
6564         (*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
6565         (*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
6566         (*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
6567         (*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
6568         (*pdb_method)->search_users = ldapsam_search_users;
6569         (*pdb_method)->search_groups = ldapsam_search_groups;
6570         (*pdb_method)->search_aliases = ldapsam_search_aliases;
6571
6572         if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
6573                 (*pdb_method)->enum_group_members = ldapsam_enum_group_members;
6574                 (*pdb_method)->enum_group_memberships =
6575                         ldapsam_enum_group_memberships;
6576                 (*pdb_method)->lookup_rids = ldapsam_lookup_rids;
6577                 (*pdb_method)->sid_to_id = ldapsam_sid_to_id;
6578                 (*pdb_method)->uid_to_sid = ldapsam_uid_to_sid;
6579                 (*pdb_method)->gid_to_sid = ldapsam_gid_to_sid;
6580
6581                 if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
6582                         (*pdb_method)->create_user = ldapsam_create_user;
6583                         (*pdb_method)->delete_user = ldapsam_delete_user;
6584                         (*pdb_method)->create_dom_group = ldapsam_create_dom_group;
6585                         (*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
6586                         (*pdb_method)->add_groupmem = ldapsam_add_groupmem;
6587                         (*pdb_method)->del_groupmem = ldapsam_del_groupmem;
6588                         (*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
6589                 }
6590         }
6591
6592         ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
6593         ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
6594
6595         /* Try to setup the Domain Name, Domain SID, algorithmic rid base */
6596
6597         nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
6598                                                &result,
6599                                                ldap_state->domain_name, True);
6600
6601         if ( !NT_STATUS_IS_OK(nt_status) ) {
6602                 DEBUG(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
6603                           "info, nor add one to the domain\n"));
6604                 DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
6605                              "will be unable to allocate new users/groups, "
6606                              "and will risk BDCs having inconsistent SIDs\n"));
6607                 sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
6608                 return NT_STATUS_OK;
6609         }
6610
6611         /* Given that the above might fail, everything below this must be
6612          * optional */
6613
6614         entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
6615                                  result);
6616         if (!entry) {
6617                 DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
6618                           "entry\n"));
6619                 ldap_msgfree(result);
6620                 return NT_STATUS_UNSUCCESSFUL;
6621         }
6622
6623         dn = smbldap_talloc_dn(talloc_tos(), ldap_state->smbldap_state->ldap_struct, entry);
6624         if (!dn) {
6625                 ldap_msgfree(result);
6626                 return NT_STATUS_UNSUCCESSFUL;
6627         }
6628
6629         ldap_state->domain_dn = smb_xstrdup(dn);
6630         TALLOC_FREE(dn);
6631
6632         domain_sid_string = smbldap_talloc_single_attribute(
6633                     ldap_state->smbldap_state->ldap_struct,
6634                     entry,
6635                     get_userattr_key2string(ldap_state->schema_ver,
6636                                             LDAP_ATTR_USER_SID),
6637                     talloc_tos());
6638
6639         if (domain_sid_string) {
6640                 bool found_sid;
6641                 if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
6642                         DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
6643                                   "read as a valid SID\n", domain_sid_string));
6644                         ldap_msgfree(result);
6645                         TALLOC_FREE(domain_sid_string);
6646                         return NT_STATUS_INVALID_PARAMETER;
6647                 }
6648                 found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
6649                                                      &secrets_domain_sid);
6650                 if (!found_sid || !dom_sid_equal(&secrets_domain_sid,
6651                                              &ldap_domain_sid)) {
6652                         DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
6653                                   "%s based on pdb_ldap results %s -> %s\n",
6654                                   ldap_state->domain_name,
6655                                   sid_string_dbg(&secrets_domain_sid),
6656                                   sid_string_dbg(&ldap_domain_sid)));
6657
6658                         /* reset secrets.tdb sid */
6659                         secrets_store_domain_sid(ldap_state->domain_name,
6660                                                  &ldap_domain_sid);
6661                         DEBUG(1, ("New global sam SID: %s\n",
6662                                   sid_string_dbg(get_global_sam_sid())));
6663                 }
6664                 sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
6665                 TALLOC_FREE(domain_sid_string);
6666         }
6667
6668         alg_rid_base_string = smbldap_talloc_single_attribute(
6669                     ldap_state->smbldap_state->ldap_struct,
6670                     entry,
6671                     get_attr_key2string( dominfo_attr_list,
6672                                          LDAP_ATTR_ALGORITHMIC_RID_BASE ),
6673                     talloc_tos());
6674         if (alg_rid_base_string) {
6675                 alg_rid_base = (uint32_t)atol(alg_rid_base_string);
6676                 if (alg_rid_base != algorithmic_rid_base()) {
6677                         DEBUG(0, ("The value of 'algorithmic RID base' has "
6678                                   "changed since the LDAP\n"
6679                                   "database was initialised.  Aborting. \n"));
6680                         ldap_msgfree(result);
6681                         TALLOC_FREE(alg_rid_base_string);
6682                         return NT_STATUS_UNSUCCESSFUL;
6683                 }
6684                 TALLOC_FREE(alg_rid_base_string);
6685         }
6686         ldap_msgfree(result);
6687
6688         return NT_STATUS_OK;
6689 }
6690
6691 NTSTATUS pdb_ldap_init(void)
6692 {
6693         NTSTATUS nt_status;
6694         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
6695                 return nt_status;
6696
6697         if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
6698                 return nt_status;
6699
6700         /* Let pdb_nds register backends */
6701         pdb_nds_init();
6702
6703         pdb_ipa_init();
6704
6705         return NT_STATUS_OK;
6706 }