source/passdb/ldap.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    LDAP protocol helper functions for SAMBA
   5    Copyright (C) Jean François Micouleau 1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21 */
  22
  23 #ifdef WITH_LDAP
  24
  25 #include "includes.h"
  26
  27 #include <lber.h>
  28 #include <ldap.h>
  29
  30 #define ADD_USER 1
  31 #define MODIFY_USER 2
  32
  33 extern int DEBUGLEVEL;
  34
  35 /*******************************************************************
  36  open a connection to the ldap serve.
  37 ******************************************************************/
  38 static BOOL ldap_open_connection(LDAP **ldap_struct)
  39 {
  40         if ( (*ldap_struct = ldap_open(lp_ldap_server(),lp_ldap_port()) ) == NULL)
  41         {
  42                 DEBUG( 0, ( "The LDAP server is not responding !\n" ) );
  43                 return( False );
  44         }
  45         DEBUG(2,("ldap_open_connection: connection opened\n"));
  46         return (True);
  47 }
  48
  49
  50 /*******************************************************************
  51  connect anonymously to the ldap server.
  52  FIXME: later (jfm)
  53 ******************************************************************/
  54 static BOOL ldap_connect_anonymous(LDAP *ldap_struct)
  55 {
  56         if ( ldap_simple_bind_s(ldap_struct,lp_ldap_root(),lp_ldap_rootpasswd()) ! = LDAP_SUCCESS)
  57         {
  58                 DEBUG( 0, ( "Couldn't bind to the LDAP server !\n" ) );
  59                 return(False);
  60         }
  61         return (True);
  62 }
  63
  64
  65 /*******************************************************************
  66  connect to the ldap server under system privileg.
  67 ******************************************************************/
  68 static BOOL ldap_connect_system(LDAP *ldap_struct)
  69 {
  70         if ( ldap_simple_bind_s(ldap_struct,lp_ldap_root(),lp_ldap_rootpasswd()) ! = LDAP_SUCCESS)
  71         {
  72                 DEBUG( 0, ( "Couldn't bind to the LDAP server!\n" ) );
  73                 return(False);
  74         }
  75         DEBUG(2,("ldap_connect_system: succesful connection to the LDAP server\n"));
  76         return (True);
  77 }
  78
  79 /*******************************************************************
  80  connect to the ldap server under a particular user.
  81 ******************************************************************/
  82 static BOOL ldap_connect_user(LDAP *ldap_struct, char *user, char *password)
  83 {
  84         if ( ldap_simple_bind_s(ldap_struct,lp_ldap_root(),lp_ldap_rootpasswd()) ! = LDAP_SUCCESS)
  85         {
  86                 DEBUG( 0, ( "Couldn't bind to the LDAP server !\n" ) );
  87                 return(False);
  88         }
  89         DEBUG(2,("ldap_connect_user: succesful connection to the LDAP server\n"));
  90         return (True);
  91 }
  92
  93 /*******************************************************************
  94  run the search by name.
  95 ******************************************************************/
  96 static BOOL ldap_search_one_user(LDAP *ldap_struct, char *filter, LDAPMessage **result)
  97 {
  98         int scope = LDAP_SCOPE_ONELEVEL;
  99         int rc;
 100
 101         DEBUG(2,("ldap_search_one_user: searching for:[%s]\n", filter));
 102
 103         rc = ldap_search_s(ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, result);
 104
 105         if (rc ! = LDAP_SUCCESS )
 106         {
 107                 DEBUG( 0, ( "Problem during the LDAP search\n" ) );
 108                 return(False);
 109         }
 110         return (True);
 111 }
 112
 113 /*******************************************************************
 114  run the search by name.
 115 ******************************************************************/
 116 static BOOL ldap_search_one_user_by_name(LDAP *ldap_struct, char *user, LDAPMessage **result)
 117 {
 118         pstring filter;
 119         /*
 120            in the filter expression, replace %u with the real name
 121            so in ldap filter, %u MUST exist :-)
 122         */
 123         pstrcpy(filter,lp_ldap_filter());
 124         pstring_sub(filter,"%u",user);
 125
 126         if ( !ldap_search_one_user(ldap_struct, filter, result) )
 127         {
 128                 return(False);
 129         }
 130         return (True);
 131 }
 132
 133 /*******************************************************************
 134  run the search by uid.
 135 ******************************************************************/
 136 static BOOL ldap_search_one_user_by_uid(LDAP *ldap_struct, int uid, LDAPMessage **result)
 137 {
 138         pstring filter;
 139
 140         slprintf(filter, sizeof(pstring)-1, "uidAccount = %d", uid);
 141
 142         if ( !ldap_search_one_user(ldap_struct, filter, result) )
 143         {
 144                 return(False);
 145         }
 146         return (True);
 147 }
 148
 149 /*******************************************************************
 150  search an attribute and return the first value found.
 151 ******************************************************************/
 152 static void get_single_attribute(LDAP *ldap_struct, LDAPMessage *entry, char *attribute, char *value)
 153 {
 154         char **valeurs;
 155
 156         if ( (valeurs = ldap_get_values(ldap_struct, entry, attribute)) ! = NULL)
 157         {
 158                 pstrcpy(value, valeurs[0]);
 159                 ldap_value_free(valeurs);
 160                 DEBUG(3,("get_single_attribute: [%s] = [%s]\n", attribute, value));
 161         }
 162         else
 163         {
 164                 value = NULL;
 165         }
 166 }
 167
 168 /*******************************************************************
 169  check if the returned entry is a sambaAccount objectclass.
 170 ******************************************************************/
 171 static BOOL ldap_check_user(LDAP *ldap_struct, LDAPMessage *entry)
 172 {
 173         BOOL sambaAccount = False;
 174         char **valeur;
 175         int i;
 176
 177         DEBUG(2,("ldap_check_user: "));
 178         valeur = ldap_get_values(ldap_struct, entry, "objectclass");
 179         if (valeur! = NULL)
 180         {
 181                 for (i = 0;valeur[i]! = NULL;i++)
 182                 {
 183                         if (!strcmp(valeur[i],"sambaAccount")) sambaAccount = True;
 184                 }
 185         }
 186         DEBUG(2,("%s\n",sambaAccount?"yes":"no"));
 187         ldap_value_free(valeur);
 188         return (sambaAccount);
 189 }
 190
 191 /*******************************************************************
 192  check if the returned entry is a sambaTrust objectclass.
 193 ******************************************************************/
 194 static BOOL ldap_check_trust(LDAP *ldap_struct, LDAPMessage *entry)
 195 {
 196         BOOL sambaTrust = False;
 197         char **valeur;
 198         int i;
 199
 200         DEBUG(2,("ldap_check_trust: "));
 201         valeur = ldap_get_values(ldap_struct, entry, "objectclass");
 202         if (valeur! = NULL)
 203         {
 204                 for (i = 0;valeur[i]! = NULL;i++)
 205                 {
 206                         if (!strcmp(valeur[i],"sambaTrust")) sambaTrust = True;
 207                 }
 208         }
 209         DEBUG(2,("%s\n",sambaTrust?"yes":"no"));
 210         ldap_value_free(valeur);
 211         return (sambaTrust);
 212 }
 213
 214 /*******************************************************************
 215  retrieve the user's info and contruct a smb_passwd structure.
 216 ******************************************************************/
 217 static void ldap_get_smb_passwd(LDAP *ldap_struct,LDAPMessage *entry,
 218                           struct smb_passwd *user)
 219 {
 220         static pstring user_name;
 221         static pstring user_pass;
 222         static pstring temp;
 223         static unsigned char smblmpwd[16];
 224         static unsigned char smbntpwd[16];
 225
 226         pdb_init_smb(user);
 227
 228         memset((char *)smblmpwd, '\0', sizeof(smblmpwd));
 229         memset((char *)smbntpwd, '\0', sizeof(smbntpwd));
 230
 231         get_single_attribute(ldap_struct, entry, "cn", user_name);
 232         DEBUG(2,("ldap_get_smb_passwd: user: %s\n",user_name));
 233
 234 #ifdef LDAP_PLAINTEXT_PASSWORD
 235         get_single_attribute(ldap_struct, entry, "userPassword", temp);
 236         nt_lm_owf_gen(temp, user->smb_nt_passwd, user->smb_passwd);
 237         memset((char *)temp, '\0', sizeof(temp)); /* destroy local copy of the password */
 238 #else
 239         get_single_attribute(ldap_struct, entry, "unicodePwd", temp);
 240         pdb_gethexpwd(temp, smbntpwd);
 241         memset((char *)temp, '\0', sizeof(temp)); /* destroy local copy of the password */
 242
 243         get_single_attribute(ldap_struct, entry, "dBCSPwd", temp);
 244         pdb_gethexpwd(temp, smblmpwd);
 245         memset((char *)temp, '\0', sizeof(temp)); /* destroy local copy of the password */
 246 #endif
 247
 248         get_single_attribute(ldap_struct, entry, "userAccountControl", temp);
 249         user->acct_ctrl = pdb_decode_acct_ctrl(temp);
 250
 251         get_single_attribute(ldap_struct, entry, "pwdLastSet", temp);
 252         user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
 253
 254         get_single_attribute(ldap_struct, entry, "rid", temp);
 255
 256         /* the smb (unix) ids are not stored: they are created */
 257         user->smb_userid = pdb_user_rid_to_uid (atoi(temp));
 258
 259         if (user->acct_ctrl & (ACB_DOMTRUST|ACB_WSTRUST|ACB_SVRTRUST) )
 260         {
 261                 DEBUG(0,("Inconsistency in the LDAP database\n"));
 262         }
 263         if (user->acct_ctrl & ACB_NORMAL)
 264         {
 265                 user->smb_name      = user_name;
 266                 user->smb_passwd    = smblmpwd;
 267                 user->smb_nt_passwd = smbntpwd;
 268         }
 269 }
 270
 271 /*******************************************************************
 272  retrieve the user's info and contruct a sam_passwd structure.
 273
 274  calls ldap_get_smb_passwd function first, though, to save code duplication.
 275
 276 ******************************************************************/
 277 static void ldap_get_sam_passwd(LDAP *ldap_struct, LDAPMessage *entry,
 278                           struct sam_passwd *user)
 279 {
 280         static pstring user_name;
 281         static pstring fullname;
 282         static pstring home_dir;
 283         static pstring dir_drive;
 284         static pstring logon_script;
 285         static pstring profile_path;
 286         static pstring acct_desc;
 287         static pstring workstations;
 288         static pstring temp;
 289         static struct smb_passwd pw_buf;
 290
 291         pdb_init_sam(user);
 292
 293         ldap_get_smb_passwd(ldap_struct, entry, &pw_buf);
 294
 295         user->pass_last_set_time    = pw_buf.pass_last_set_time;
 296
 297         get_single_attribute(ldap_struct, entry, "logonTime", temp);
 298         user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
 299
 300         get_single_attribute(ldap_struct, entry, "logoffTime", temp);
 301         user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
 302
 303         get_single_attribute(ldap_struct, entry, "kickoffTime", temp);
 304         user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
 305
 306         get_single_attribute(ldap_struct, entry, "pwdLastSet", temp);
 307         user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
 308
 309         get_single_attribute(ldap_struct, entry, "pwdCanChange", temp);
 310         user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
 311
 312         get_single_attribute(ldap_struct, entry, "pwdMustChange", temp);
 313         user->pass_last_set_time = (time_t)strtol(temp, NULL, 16);
 314
 315         user->smb_name = pw_buf.smb_name;
 316
 317         DEBUG(2,("ldap_get_sam_passwd: user: %s\n", user_name));
 318
 319         get_single_attribute(ldap_struct, entry, "userFullName", fullname);
 320         user->full_name = fullname;
 321
 322         get_single_attribute(ldap_struct, entry, "homeDirectory", home_dir);
 323         user->home_dir = home_dir;
 324
 325         get_single_attribute(ldap_struct, entry, "homeDrive", dir_drive);
 326         user->dir_drive = dir_drive;
 327
 328         get_single_attribute(ldap_struct, entry, "scriptPath", logon_script);
 329         user->logon_script = logon_script;
 330
 331         get_single_attribute(ldap_struct, entry, "profilePath", profile_path);
 332         user->profile_path = profile_path;
 333
 334         get_single_attribute(ldap_struct, entry, "comment", acct_desc);
 335         user->acct_desc = acct_desc;
 336
 337         get_single_attribute(ldap_struct, entry, "userWorkstations", workstations);
 338         user->workstations = workstations;
 339
 340         user->unknown_str = NULL; /* don't know, yet! */
 341         user->munged_dial = NULL; /* "munged" dial-back telephone number */
 342
 343         get_single_attribute(ldap_struct, entry, "rid", temp);
 344         user->user_rid = atoi(temp);
 345
 346         get_single_attribute(ldap_struct, entry, "primaryGroupID", temp);
 347         user->group_rid = atoi(temp);
 348
 349         /* the smb (unix) ids are not stored: they are created */
 350         user->smb_userid = pw_buf.smb_userid;
 351         user->smb_grpid = group_rid_to_uid(user->group_rid);
 352
 353         user->acct_ctrl = pw_buf.acct_ctrl;
 354
 355         user->unknown_3 = 0xffffff; /* don't know */
 356         user->logon_divs = 168; /* hours per week */
 357         user->hours_len = 21; /* 21 times 8 bits = 168 */
 358         memset(user->hours, 0xff, user->hours_len); /* available at all hours */
 359         user->unknown_5 = 0x00020000; /* don't know */
 360         user->unknown_5 = 0x000004ec; /* don't know */
 361
 362         if (user->acct_ctrl & (ACB_DOMTRUST|ACB_WSTRUST|ACB_SVRTRUST) )
 363         {
 364                 DEBUG(0,("Inconsistency in the LDAP database\n"));
 365         }
 366
 367         if (!(user->acct_ctrl & ACB_NORMAL))
 368         {
 369                 DEBUG(0,("User's acct_ctrl bits not set to ACT_NORMAL in LDAP database\n"));
 370                 return;
 371         }
 372 }
 373
 374 /************************************************************************
 375  Routine to manage the LDAPMod structure array
 376  manage memory used by the array, by each struct, and values
 377
 378 ************************************************************************/
 379 static void make_a_mod(LDAPMod ***modlist,int modop, char *attribute, char *value)
 380 {
 381         LDAPMod **mods;
 382         int i;
 383         int j;
 384
 385         mods = *modlist;
 386
 387         if (mods == NULL)
 388         {
 389                 mods = (LDAPMod **)malloc( sizeof(LDAPMod *) );
 390                 if (mods == NULL)
 391                 {
 392                         DEBUG(0,("make_a_mod: out of memory!\n"));
 393                         return;
 394                 }
 395                 mods[0] = NULL;
 396         }
 397
 398         for ( i = 0; mods[ i ] ! = NULL; ++i )
 399         {
 400                 if ( mods[ i ]->mod_op == modop &&
 401                     !strcasecmp( mods[ i ]->mod_type, attribute ) )
 402                 {
 403                         break;
 404                 }
 405         }
 406
 407         if (mods[i] == NULL)
 408         {
 409                 mods = (LDAPMod **)realloc( mods,  (i+2) * sizeof( LDAPMod * ) );
 410                 if (mods == NULL)
 411                 {
 412                         DEBUG(0,("make_a_mod: out of memory!\n"));
 413                         return;
 414                 }
 415                 mods[i] = (LDAPMod *)malloc( sizeof( LDAPMod ) );
 416                 if (mods[i] == NULL)
 417                 {
 418                         DEBUG(0,("make_a_mod: out of memory!\n"));
 419                         return;
 420                 }
 421                 mods[i]->mod_op = modop;
 422                 mods[i]->mod_values = NULL;
 423                 mods[i]->mod_type = strdup( attribute );
 424                 mods[i+1] = NULL;
 425         }
 426
 427         if (value ! = NULL )
 428         {
 429                 j = 0;
 430                 if ( mods[ i ]->mod_values ! = NULL )
 431                 {
 432                         for ( ; mods[ i ]->mod_values[ j ] ! = NULL; j++ );
 433                 }
 434                 mods[ i ]->mod_values = (char **)realloc(mods[ i ]->mod_values,
 435                                                           (j+2) * sizeof( char * ));
 436                 if ( mods[ i ]->mod_values == NULL)
 437                 {
 438                         DEBUG(0, "make_a_mod: Memory allocation failure!\n");
 439                         return;
 440                 }
 441                 mods[ i ]->mod_values[ j ] = strdup(value);
 442                 mods[ i ]->mod_values[ j + 1 ] = NULL;
 443         }
 444         *modlist = mods;
 445 }
 446
 447 /************************************************************************
 448  Add or modify an entry. Only the smb struct values
 449
 450 *************************************************************************/
 451 static BOOL modadd_ldappwd_entry(struct smb_passwd *newpwd, int flag)
 452 {
 453
 454         /* assume the struct is correct and filled
 455            that's the job of passdb.c to check */
 456         int scope = LDAP_SCOPE_ONELEVEL;
 457         int rc;
 458         char *smb_name;
 459         int trust = False;
 460         int ldap_state;
 461         pstring filter;
 462         pstring dn;
 463         pstring lmhash;
 464         pstring nthash;
 465         pstring rid;
 466         pstring lst;
 467         pstring temp;
 468
 469         LDAP *ldap_struct;
 470         LDAPMessage *result;
 471         LDAPMod **mods;
 472
 473         smb_name = newpwd->smb_name;
 474
 475         if (!ldap_open_connection(&ldap_struct)) /* open a connection to the server */
 476         {
 477                 return False;
 478         }
 479
 480         if (!ldap_connect_system(ldap_struct)) /* connect as system account */
 481         {
 482                 ldap_unbind(ldap_struct);
 483                 return False;
 484         }
 485
 486         if (smb_name[strlen(smb_name)-1] == '$' )
 487         {
 488                 smb_name[strlen(smb_name)-1] = '\0';
 489                 trust = True;
 490         }
 491
 492         slprintf(filter, sizeof(filter)-1,
 493                  "(&(cn = %s)(|(objectclass = sambaTrust)(objectclass = sambaAccount)))",
 494                  smb_name);
 495
 496         rc = ldap_search_s(ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, &result);
 497
 498         switch (flag)
 499         {
 500                 case ADD_USER:
 501                 {
 502                         if (ldap_count_entries(ldap_struct, result) ! = 0)
 503                         {
 504                                 DEBUG(0,("User already in the base, with samba properties\n"));
 505                                 ldap_unbind(ldap_struct);
 506                                 return False;
 507                         }
 508                         ldap_state = LDAP_MOD_ADD;
 509                         break;
 510                 }
 511                 case MODIFY_USER:
 512                 {
 513                         if (ldap_count_entries(ldap_struct, result) ! = 1)
 514                         {
 515                                 DEBUG(0,("No user to modify !\n"));
 516                                 ldap_unbind(ldap_struct);
 517                                 return False;
 518                         }
 519                         ldap_state = LDAP_MOD_REPLACE;
 520                         break;
 521                 }
 522                 default:
 523                 {
 524                         DEBUG(0,("How did you come here? \n"));
 525                         ldap_unbind(ldap_struct);
 526                         return False;
 527                         break;
 528                 }
 529         }
 530         slprintf(dn, sizeof(dn)-1, "cn = %s, %s",smb_name, lp_ldap_suffix() );
 531
 532         if (newpwd->smb_passwd ! = NULL)
 533         {
 534                 int i;
 535                 for( i = 0; i < 16; i++)
 536                 {
 537                         slprintf(&temp[2*i], sizeof(temp) - 1, "%02X", newpwd->smb_passwd[i]);
 538                 }
 539
 540         }
 541         else
 542         {
 543                 if (newpwd->acct_ctrl & ACB_PWNOTREQ)
 544                 {
 545                         slprintf(temp, sizeof(temp) - 1, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
 546                 }
 547                 else
 548                 {
 549                         slprintf(temp, sizeof(temp) - 1, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
 550                 }
 551         }
 552         slprintf(lmhash, sizeof(lmhash)-1, "%s", temp);
 553
 554         if (newpwd->smb_nt_passwd ! = NULL)
 555         {
 556                 int i;
 557                 for( i = 0; i < 16; i++)
 558                 {
 559                         slprintf(&temp[2*i], sizeof(temp) - 1, "%02X", newpwd->smb_nt_passwd[i]);
 560                 }
 561
 562         }
 563         else
 564         {
 565                 if (newpwd->acct_ctrl & ACB_PWNOTREQ)
 566                 {
 567                         slprintf(temp, sizeof(temp) - 1, "NO PASSWORDXXXXXXXXXXXXXXXXXXXXX");
 568                 }
 569                 else
 570                 {
 571                         slprintf(temp, sizeof(temp) - 1, "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");
 572                 }
 573         }
 574         slprintf(nthash, sizeof(nthash)-1, "%s", temp);
 575
 576         slprintf(rid, sizeof(rid)-1, "%d", uid_to_user_rid(newpwd->smb_userid) );
 577         slprintf(lst, sizeof(lst)-1, "%08X", newpwd->pass_last_set_time);
 578
 579         mods = NULL;
 580
 581         if (trust)
 582         {
 583                 make_a_mod(&mods, ldap_state, "objectclass", "sambaTrust");
 584                 make_a_mod(&mods, ldap_state, "netbiosTrustName", smb_name);
 585                 make_a_mod(&mods, ldap_state, "trustPassword", nthash);
 586         }
 587         else
 588         {
 589                 make_a_mod(&mods, ldap_state, "objectclass", "sambaAccount");
 590                 make_a_mod(&mods, ldap_state, "dBCSPwd", lmhash);
 591                 make_a_mod(&mods, ldap_state, "uid", smb_name);
 592                 make_a_mod(&mods, ldap_state, "unicodePwd", nthash);
 593         }
 594
 595         make_a_mod(&mods, ldap_state, "cn", smb_name);
 596
 597         make_a_mod(&mods, ldap_state, "rid", rid);
 598         make_a_mod(&mods, ldap_state, "pwdLastSet", lst);
 599         make_a_mod(&mods, ldap_state, "userAccountControl", pdb_encode_acct_ctrl(newpwd->acct_ctrl, NEW_PW_FORMAT_SPACE_PADDED_LEN));
 600
 601         switch(flag)
 602         {
 603                 case ADD_USER:
 604                 {
 605                         ldap_add_s(ldap_struct, dn, mods);
 606                         DEBUG(2,("modadd_ldappwd_entry: added: cn = %s in the LDAP database\n",smb_name));
 607                         break;
 608                 }
 609                 case MODIFY_USER:
 610                 {
 611                         ldap_modify_s(ldap_struct, dn, mods);
 612                         DEBUG(2,("modadd_ldappwd_entry: changed: cn = %s in the LDAP database_n",smb_name));
 613                         break;
 614                 }
 615                 default:
 616                 {
 617                         DEBUG(2,("modadd_ldappwd_entry: How did you come here? \n"));
 618                         ldap_unbind(ldap_struct);
 619                         return False;
 620                         break;
 621                 }
 622         }
 623
 624         ldap_mods_free(mods, 1);
 625
 626         ldap_unbind(ldap_struct);
 627
 628         return True;
 629 }
 630
 631 /************************************************************************
 632  Add or modify an entry. everything except the smb struct
 633
 634 *************************************************************************/
 635 static BOOL modadd_ldap21pwd_entry(struct sam_passwd *newpwd, int flag)
 636 {
 637
 638         /* assume the struct is correct and filled
 639            that's the job of passdb.c to check */
 640         int scope = LDAP_SCOPE_ONELEVEL;
 641         int rc;
 642         char *smb_name;
 643         int trust = False;
 644         int ldap_state;
 645         pstring filter;
 646         pstring dn;
 647         pstring lmhash;
 648         pstring nthash;
 649         pstring rid;
 650         pstring lst;
 651         pstring temp;
 652
 653         LDAP *ldap_struct;
 654         LDAPMessage *result;
 655         LDAPMod **mods;
 656
 657         smb_name = newpwd->smb_name;
 658
 659         if (!ldap_open_connection(&ldap_struct)) /* open a connection to the server */
 660         {
 661                 return False;
 662         }
 663
 664         if (!ldap_connect_system(ldap_struct)) /* connect as system account */
 665         {
 666                 ldap_unbind(ldap_struct);
 667                 return False;
 668         }
 669
 670         if (smb_name[strlen(smb_name)-1] == '$' )
 671         {
 672                 smb_name[strlen(smb_name)-1] = '\0';
 673                 trust = True;
 674         }
 675
 676         slprintf(filter, sizeof(filter)-1,
 677                  "(&(cn = %s)(|(objectclass = sambaTrust)(objectclass = sambaAccount)))",
 678                  smb_name);
 679
 680         rc = ldap_search_s(ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, &result);
 681
 682         switch (flag)
 683         {
 684                 case ADD_USER:
 685                 {
 686                         if (ldap_count_entries(ldap_struct, result) ! = 1)
 687                         {
 688                                 DEBUG(2,("User already in the base, with samba properties\n"));
 689                                 ldap_unbind(ldap_struct);
 690                                 return False;
 691                         }
 692                         ldap_state = LDAP_MOD_ADD;
 693                         break;
 694                 }
 695
 696                 case MODIFY_USER:
 697                 {
 698                         if (ldap_count_entries(ldap_struct, result) ! = 1)
 699                         {
 700                                 DEBUG(2,("No user to modify !\n"));
 701                                 ldap_unbind(ldap_struct);
 702                                 return False;
 703                         }
 704                         ldap_state = LDAP_MOD_REPLACE;
 705                         break;
 706                 }
 707
 708                 default:
 709                 {
 710                         DEBUG(2,("How did you come here? \n"));
 711                         ldap_unbind(ldap_struct);
 712                         return False;
 713                         break;
 714                 }
 715         }
 716         slprintf(dn, sizeof(dn)-1, "cn = %s, %s",smb_name, lp_ldap_suffix() );
 717
 718         mods = NULL;
 719
 720         if (trust)
 721         {
 722         }
 723         else
 724         {
 725         }
 726
 727         make_a_mod(&mods, ldap_state, "cn", smb_name);
 728
 729         make_a_mod(&mods, ldap_state, "rid", rid);
 730         make_a_mod(&mods, ldap_state, "pwdLastSet", lst);
 731         make_a_mod(&mods, ldap_state, "userAccountControl", pdb_encode_acct_ctrl(newpwd->acct_ctrl,NEW_PW_FORMAT_SPACE_PADDED_LEN));
 732
 733         ldap_modify_s(ldap_struct, dn, mods);
 734
 735         ldap_mods_free(mods, 1);
 736
 737         ldap_unbind(ldap_struct);
 738
 739         return True;
 740 }
 741
 742 /************************************************************************
 743  Routine to add an entry to the ldap passwd file.
 744
 745  do not call this function directly.  use passdb.c instead.
 746
 747 *************************************************************************/
 748 static BOOL add_ldappwd_entry(struct smb_passwd *newpwd)
 749 {
 750         return (modadd_ldappwd_entry(newpwd, ADD_USER) );
 751 }
 752
 753 /************************************************************************
 754  Routine to search the ldap passwd file for an entry matching the username.
 755  and then modify its password entry. We can't use the startldappwent()/
 756  getldappwent()/endldappwent() interfaces here as we depend on looking
 757  in the actual file to decide how much room we have to write data.
 758  override = False, normal
 759  override = True, override XXXXXXXX'd out password or NO PASS
 760
 761  do not call this function directly.  use passdb.c instead.
 762
 763 ************************************************************************/
 764 static BOOL mod_ldappwd_entry(struct smb_passwd *pwd, BOOL override)
 765 {
 766         return (modadd_ldappwd_entry(pwd, MODIFY_USER) );
 767 }
 768
 769 /************************************************************************
 770  Routine to add an entry to the ldap passwd file.
 771
 772  do not call this function directly.  use passdb.c instead.
 773
 774 *************************************************************************/
 775 static BOOL add_ldap21pwd_entry(struct sam_passwd *newpwd)
 776 {
 777         return( modadd_ldappwd_entry(newpwd, ADD_USER)?
 778         modadd_ldap21pwd_entry(newpwd, ADD_USER):False);
 779 }
 780
 781 /************************************************************************
 782  Routine to search the ldap passwd file for an entry matching the username.
 783  and then modify its password entry. We can't use the startldappwent()/
 784  getldappwent()/endldappwent() interfaces here as we depend on looking
 785  in the actual file to decide how much room we have to write data.
 786  override = False, normal
 787  override = True, override XXXXXXXX'd out password or NO PASS
 788
 789  do not call this function directly.  use passdb.c instead.
 790
 791 ************************************************************************/
 792 static BOOL mod_ldap21pwd_entry(struct sam_passwd *pwd, BOOL override)
 793 {
 794         return( modadd_ldappwd_entry(pwd, MODIFY_USER)?
 795         modadd_ldap21pwd_entry(pwd, MODIFY_USER):False);
 796 }
 797
 798 struct ldap_enum_info
 799 {
 800         LDAP *ldap_struct;
 801         LDAPMessage *result;
 802         LDAPMessage *entry;
 803 };
 804
 805 static struct ldap_enum_info ldap_ent;
 806
 807 /***************************************************************
 808  Start to enumerate the ldap passwd list. Returns a void pointer
 809  to ensure no modification outside this module.
 810
 811  do not call this function directly.  use passdb.c instead.
 812
 813  ****************************************************************/
 814 static void *startldappwent(BOOL update)
 815 {
 816         int scope = LDAP_SCOPE_ONELEVEL;
 817         int rc;
 818
 819         pstring filter;
 820
 821         if (!ldap_open_connection(&ldap_ent.ldap_struct)) /* open a connection to the server */
 822         {
 823                 return NULL;
 824         }
 825
 826         if (!ldap_connect_system(ldap_ent.ldap_struct)) /* connect as system account */
 827         {
 828                 return NULL;
 829         }
 830
 831         /* when the class is known the search is much faster */
 832         switch (0)
 833         {
 834                 case 1:
 835                 {
 836                         pstrcpy(filter, "objectclass = sambaAccount");
 837                         break;
 838                 }
 839                 case 2:
 840                 {
 841                         pstrcpy(filter, "objectclass = sambaTrust");
 842                         break;
 843                 }
 844                 default:
 845                 {
 846                         pstrcpy(filter, "(|(objectclass = sambaTrust)(objectclass = sambaAccount))");
 847                         break;
 848                 }
 849         }
 850
 851         rc = ldap_search_s(ldap_ent.ldap_struct, lp_ldap_suffix(), scope, filter, NULL, 0, &ldap_ent.result);
 852
 853         DEBUG(2,("%d entries in the base!\n", ldap_count_entries(ldap_ent.ldap_struct, ldap_ent.result) ));
 854
 855         ldap_ent.entry = ldap_first_entry(ldap_ent.ldap_struct, ldap_ent.result);
 856
 857         return &ldap_ent;
 858 }
 859
 860 /*************************************************************************
 861  Routine to return the next entry in the ldap passwd list.
 862
 863  do not call this function directly.  use passdb.c instead.
 864
 865  *************************************************************************/
 866 static struct smb_passwd *getldappwent(void *vp)
 867 {
 868         static struct smb_passwd user;
 869         struct ldap_enum_info *ldap_vp = (struct ldap_enum_info *)vp;
 870
 871         ldap_vp->entry = ldap_next_entry(ldap_vp->ldap_struct, ldap_vp->entry);
 872
 873         if (ldap_vp->entry ! = NULL)
 874         {
 875                 ldap_get_smb_passwd(ldap_vp->ldap_struct, ldap_vp->entry, &user);
 876                 return &user;
 877         }
 878         return NULL;
 879 }
 880
 881 /*************************************************************************
 882  Routine to return the next entry in the ldap passwd list.
 883
 884  do not call this function directly.  use passdb.c instead.
 885
 886  *************************************************************************/
 887 static struct sam_passwd *getldap21pwent(void *vp)
 888 {
 889         static struct sam_passwd user;
 890         struct ldap_enum_info *ldap_vp = (struct ldap_enum_info *)vp;
 891
 892         ldap_vp->entry = ldap_next_entry(ldap_vp->ldap_struct, ldap_vp->entry);
 893
 894         if (ldap_vp->entry ! = NULL)
 895         {
 896                 ldap_get_sam_passwd(ldap_vp->ldap_struct, ldap_vp->entry, &user);
 897                 return &user;
 898         }
 899         return NULL;
 900 }
 901
 902 /***************************************************************
 903  End enumeration of the ldap passwd list.
 904
 905  do not call this function directly.  use passdb.c instead.
 906
 907 ****************************************************************/
 908 static void endldappwent(void *vp)
 909 {
 910         struct ldap_enum_info *ldap_vp = (struct ldap_enum_info *)vp;
 911         ldap_msgfree(ldap_vp->result);
 912         ldap_unbind(ldap_vp->ldap_struct);
 913 }
 914
 915 /*************************************************************************
 916  Return the current position in the ldap passwd list as an SMB_BIG_UINT.
 917  This must be treated as an opaque token.
 918
 919  do not call this function directly.  use passdb.c instead.
 920
 921 *************************************************************************/
 922 static SMB_BIG_UINT getldappwpos(void *vp)
 923 {
 924         return (SMB_BIG_UINT)0;
 925 }
 926
 927 /*************************************************************************
 928  Set the current position in the ldap passwd list from SMB_BIG_UINT.
 929  This must be treated as an opaque token.
 930
 931  do not call this function directly.  use passdb.c instead.
 932
 933 *************************************************************************/
 934 static BOOL setldappwpos(void *vp, SMB_BIG_UINT tok)
 935 {
 936         return False;
 937 }
 938
 939 /*
 940  * Ldap derived functions.
 941  */
 942
 943 static struct smb_passwd *getldappwnam(char *name)
 944 {
 945   return pdb_sam_to_smb(iterate_getsam21pwnam(name));
 946 }
 947
 948 static struct smb_passwd *getldappwuid(uid_t smb_userid)
 949 {
 950   return pdb_sam_to_smb(iterate_getsam21pwuid(smb_userid));
 951 }
 952
 953 static struct smb_passwd *getldappwrid(uint32 user_rid)
 954 {
 955   return pdb_sam_to_smb(iterate_getsam21pwuid(pdb_user_rid_to_uid(user_rid)));
 956 }
 957
 958 static struct smb_passwd *getldappwent(void *vp)
 959 {
 960   return pdb_sam_to_smb(getldap21pwent(vp));
 961 }
 962
 963 static BOOL add_ldappwd_entry(struct smb_passwd *newpwd)
 964 {
 965   return add_ldap21pwd_entry(pdb_smb_to_sam(newpwd));
 966 }
 967
 968 static BOOL mod_ldappwd_entry(struct smb_passwd* pwd, BOOL override)
 969 {
 970   return mod_ldap21pwd_entry(pdb_smb_to_sam(pwd), override);
 971 }
 972
 973 static struct sam_disp_info *getldapdispnam(char *name)
 974 {
 975         return pdb_sam_to_dispinfo(getldap21pwnam(name));
 976 }
 977
 978 static struct sam_disp_info *getldapdisprid(uint32 rid)
 979 {
 980         return pdb_sam_to_dispinfo(getldap21pwrid(rid));
 981 }
 982
 983 static struct sam_disp_info *getldapdispent(void *vp)
 984 {
 985         return pdb_sam_to_dispinfo(getldap21pwent(vp));
 986 }
 987
 988 static struct sam_passwd *getldap21pwuid(uid_t uid)
 989 {
 990         return pdb_smb_to_sam(iterate_getsam21pwuid(pdb_uid_to_user_rid(uid)));
 991 }
 992
 993 static struct passdb_ops ldap_ops =
 994 {
 995         startldappwent,
 996         endldappwent,
 997         getldappwpos,
 998         setldappwpos,
 999         getldappwnam,
1000         getldappwuid,
1001         getldappwrid,
1002         getldappwent,
1003         add_ldappwd_entry,
1004         mod_ldappwd_entry,
1005         getldap21pwent,
1006         iterate_getsam21pwnam,       /* From passdb.c */
1007         iterate_getsam21pwuid,       /* From passdb.c */
1008         iterate_getsam21pwrid,       /* From passdb.c */
1009         add_ldap21pwd_entry,
1010         mod_ldap21pwd_entry,
1011         getldapdispnam,
1012         getldapdisprid,
1013         getldapdispent
1014 };
1015
1016 struct passdb_ops *ldap_initialize_password_db(void)
1017 {
1018   return &ldap_ops;
1019 }
1020
1021 #else
1022  void dummy_function(void);
1023  void dummy_function(void) { } /* stop some compilers complaining */
1024 #endif