source3/groupdb/mapping.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *  Copyright (C) Andrew Tridgell              1992-2000,
   5  *  Copyright (C) Jean François Micouleau      1998-2001.
   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 #include "includes.h"
  23
  24 static TDB_CONTEXT *tdb; /* used for driver files */
  25
  26 #define DATABASE_VERSION_V1 1 /* native byte format. */
  27 #define DATABASE_VERSION_V2 2 /* le format. */
  28
  29 #define GROUP_PREFIX "UNIXGROUP/"
  30
  31 PRIVS privs[] = {
  32         {SE_PRIV_NONE,           "no_privs",                  "No privilege"                    }, /* this one MUST be first */
  33         {SE_PRIV_ADD_MACHINES,   "SeMachineAccountPrivilege", "Add workstations to the domain"  },
  34         {SE_PRIV_SEC_PRIV,       "SeSecurityPrivilege",       "Manage the audit logs"           },
  35         {SE_PRIV_TAKE_OWNER,     "SeTakeOwnershipPrivilege",  "Take ownership of file"          },
  36         {SE_PRIV_ADD_USERS,      "SaAddUsers",                "Add users to the domain - Samba" },
  37         {SE_PRIV_PRINT_OPERATOR, "SaPrintOp",                 "Add or remove printers - Samba"  },
  38         {SE_PRIV_ALL,            "SaAllPrivs",                "all privileges"                  }
  39 };
  40
  41
  42 /****************************************************************************
  43 dump the mapping group mapping to a text file
  44 ****************************************************************************/
  45 char *decode_sid_name_use(fstring group, enum SID_NAME_USE name_use)
  46 {
  47         static fstring group_type;
  48
  49         switch(name_use) {
  50                 case SID_NAME_USER:
  51                         fstrcpy(group_type,"User");
  52                         break;
  53                 case SID_NAME_DOM_GRP:
  54                         fstrcpy(group_type,"Domain group");
  55                         break;
  56                 case SID_NAME_DOMAIN:
  57                         fstrcpy(group_type,"Domain");
  58                         break;
  59                 case SID_NAME_ALIAS:
  60                         fstrcpy(group_type,"Local group");
  61                         break;
  62                 case SID_NAME_WKN_GRP:
  63                         fstrcpy(group_type,"Builtin group");
  64                         break;
  65                 case SID_NAME_DELETED:
  66                         fstrcpy(group_type,"Deleted");
  67                         break;
  68                 case SID_NAME_INVALID:
  69                         fstrcpy(group_type,"Invalid");
  70                         break;
  71                 case SID_NAME_UNKNOWN:
  72                 default:
  73                         fstrcpy(group_type,"Unknown type");
  74                         break;
  75         }
  76
  77         fstrcpy(group, group_type);
  78         return group_type;
  79 }
  80
  81 /****************************************************************************
  82 initialise first time the mapping list - called from init_group_mapping()
  83 ****************************************************************************/
  84 static BOOL default_group_mapping(void)
  85 {
  86         DOM_SID sid_admins;
  87         DOM_SID sid_users;
  88         DOM_SID sid_guests;
  89         fstring str_admins;
  90         fstring str_users;
  91         fstring str_guests;
  92
  93         /* Add the Wellknown groups */
  94
  95         add_initial_entry(-1, "S-1-5-32-544", SID_NAME_WKN_GRP, "Administrators", "");
  96         add_initial_entry(-1, "S-1-5-32-545", SID_NAME_WKN_GRP, "Users", "");
  97         add_initial_entry(-1, "S-1-5-32-546", SID_NAME_WKN_GRP, "Guests", "");
  98         add_initial_entry(-1, "S-1-5-32-547", SID_NAME_WKN_GRP, "Power Users", "");
  99         add_initial_entry(-1, "S-1-5-32-548", SID_NAME_WKN_GRP, "Account Operators", "");
 100         add_initial_entry(-1, "S-1-5-32-549", SID_NAME_WKN_GRP, "System Operators", "");
 101         add_initial_entry(-1, "S-1-5-32-550", SID_NAME_WKN_GRP, "Print Operators", "");
 102         add_initial_entry(-1, "S-1-5-32-551", SID_NAME_WKN_GRP, "Backup Operators", "");
 103         add_initial_entry(-1, "S-1-5-32-552", SID_NAME_WKN_GRP, "Replicators", "");
 104
 105         /* Add the defaults domain groups */
 106
 107         sid_copy(&sid_admins, get_global_sam_sid());
 108         sid_append_rid(&sid_admins, DOMAIN_GROUP_RID_ADMINS);
 109         sid_to_string(str_admins, &sid_admins);
 110         add_initial_entry(-1, str_admins, SID_NAME_DOM_GRP, "Domain Admins", "");
 111
 112         sid_copy(&sid_users,  get_global_sam_sid());
 113         sid_append_rid(&sid_users,  DOMAIN_GROUP_RID_USERS);
 114         sid_to_string(str_users, &sid_users);
 115         add_initial_entry(-1, str_users,  SID_NAME_DOM_GRP, "Domain Users",  "");
 116
 117         sid_copy(&sid_guests, get_global_sam_sid());
 118         sid_append_rid(&sid_guests, DOMAIN_GROUP_RID_GUESTS);
 119         sid_to_string(str_guests, &sid_guests);
 120         add_initial_entry(-1, str_guests, SID_NAME_DOM_GRP, "Domain Guests", "");
 121
 122         return True;
 123 }
 124
 125 /****************************************************************************
 126  Open the group mapping tdb.
 127 ****************************************************************************/
 128
 129 static BOOL init_group_mapping(void)
 130 {
 131         static pid_t local_pid;
 132         const char *vstring = "INFO/version";
 133         int32 vers_id;
 134
 135         if (tdb && local_pid == sys_getpid())
 136                 return True;
 137         tdb = tdb_open_log(lock_path("group_mapping.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
 138         if (!tdb) {
 139                 DEBUG(0,("Failed to open group mapping database\n"));
 140                 return False;
 141         }
 142
 143         local_pid = sys_getpid();
 144
 145         /* handle a Samba upgrade */
 146         tdb_lock_bystring(tdb, vstring, 0);
 147
 148         /* Cope with byte-reversed older versions of the db. */
 149         vers_id = tdb_fetch_int32(tdb, vstring);
 150         if ((vers_id == DATABASE_VERSION_V1) || (IREV(vers_id) == DATABASE_VERSION_V1)) {
 151                 /* Written on a bigendian machine with old fetch_int code. Save as le. */
 152                 tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
 153                 vers_id = DATABASE_VERSION_V2;
 154         }
 155
 156         if (vers_id != DATABASE_VERSION_V2) {
 157                 tdb_traverse(tdb, tdb_traverse_delete_fn, NULL);
 158                 tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
 159         }
 160
 161         tdb_unlock_bystring(tdb, vstring);
 162
 163         /* write a list of default groups */
 164         if(!default_group_mapping())
 165                 return False;
 166
 167         return True;
 168 }
 169
 170 /****************************************************************************
 171 ****************************************************************************/
 172 static BOOL add_mapping_entry(GROUP_MAP *map, int flag)
 173 {
 174         TDB_DATA kbuf, dbuf;
 175         pstring key, buf;
 176         fstring string_sid="";
 177         int len;
 178
 179         if(!init_group_mapping()) {
 180                 DEBUG(0,("failed to initialize group mapping"));
 181                 return(False);
 182         }
 183
 184         sid_to_string(string_sid, &map->sid);
 185
 186         len = tdb_pack(buf, sizeof(buf), "ddff",
 187                         map->gid, map->sid_name_use, map->nt_name, map->comment);
 188
 189         if (len > sizeof(buf))
 190                 return False;
 191
 192         slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
 193
 194         kbuf.dsize = strlen(key)+1;
 195         kbuf.dptr = key;
 196         dbuf.dsize = len;
 197         dbuf.dptr = buf;
 198         if (tdb_store(tdb, kbuf, dbuf, flag) != 0) return False;
 199
 200         return True;
 201 }
 202
 203 /****************************************************************************
 204 initialise first time the mapping list
 205 ****************************************************************************/
 206 BOOL add_initial_entry(gid_t gid, const char *sid, enum SID_NAME_USE sid_name_use, const char *nt_name, const char *comment)
 207 {
 208         GROUP_MAP map;
 209
 210         if(!init_group_mapping()) {
 211                 DEBUG(0,("failed to initialize group mapping"));
 212                 return(False);
 213         }
 214
 215         map.gid=gid;
 216         if (!string_to_sid(&map.sid, sid)) {
 217                 DEBUG(0, ("string_to_sid failed: %s", sid));
 218                 return False;
 219         }
 220
 221         map.sid_name_use=sid_name_use;
 222         fstrcpy(map.nt_name, nt_name);
 223         fstrcpy(map.comment, comment);
 224
 225         return pdb_add_group_mapping_entry(&map);
 226 }
 227
 228 /****************************************************************************
 229  Return the sid and the type of the unix group.
 230 ****************************************************************************/
 231
 232 static BOOL get_group_map_from_sid(DOM_SID sid, GROUP_MAP *map)
 233 {
 234         TDB_DATA kbuf, dbuf;
 235         pstring key;
 236         fstring string_sid;
 237         int ret = 0;
 238
 239         if(!init_group_mapping()) {
 240                 DEBUG(0,("failed to initialize group mapping"));
 241                 return(False);
 242         }
 243
 244         /* the key is the SID, retrieving is direct */
 245
 246         sid_to_string(string_sid, &sid);
 247         slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
 248
 249         kbuf.dptr = key;
 250         kbuf.dsize = strlen(key)+1;
 251
 252         dbuf = tdb_fetch(tdb, kbuf);
 253         if (!dbuf.dptr)
 254                 return False;
 255
 256         ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 257                                 &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
 258
 259         SAFE_FREE(dbuf.dptr);
 260
 261         if ( ret == -1 ) {
 262                 DEBUG(3,("get_group_map_from_sid: tdb_unpack failure\n"));
 263                 return False;
 264         }
 265
 266         sid_copy(&map->sid, &sid);
 267
 268         return True;
 269 }
 270
 271 /****************************************************************************
 272  Return the sid and the type of the unix group.
 273 ****************************************************************************/
 274
 275 static BOOL get_group_map_from_gid(gid_t gid, GROUP_MAP *map)
 276 {
 277         TDB_DATA kbuf, dbuf, newkey;
 278         fstring string_sid;
 279         int ret;
 280
 281         if(!init_group_mapping()) {
 282                 DEBUG(0,("failed to initialize group mapping"));
 283                 return(False);
 284         }
 285
 286         /* we need to enumerate the TDB to find the GID */
 287
 288         for (kbuf = tdb_firstkey(tdb);
 289              kbuf.dptr;
 290              newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
 291
 292                 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
 293
 294                 dbuf = tdb_fetch(tdb, kbuf);
 295                 if (!dbuf.dptr)
 296                         continue;
 297
 298                 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
 299
 300                 string_to_sid(&map->sid, string_sid);
 301
 302                 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 303                                  &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
 304
 305                 SAFE_FREE(dbuf.dptr);
 306
 307                 if ( ret == -1 ) {
 308                         DEBUG(3,("get_group_map_from_gid: tdb_unpack failure\n"));
 309                         return False;
 310                 }
 311
 312                 if (gid==map->gid) {
 313                         SAFE_FREE(kbuf.dptr);
 314                         return True;
 315                 }
 316         }
 317
 318         return False;
 319 }
 320
 321 /****************************************************************************
 322  Return the sid and the type of the unix group.
 323 ****************************************************************************/
 324
 325 static BOOL get_group_map_from_ntname(const char *name, GROUP_MAP *map)
 326 {
 327         TDB_DATA kbuf, dbuf, newkey;
 328         fstring string_sid;
 329         int ret;
 330
 331         if(!init_group_mapping()) {
 332                 DEBUG(0,("get_group_map_from_ntname:failed to initialize group mapping"));
 333                 return(False);
 334         }
 335
 336         /* we need to enumerate the TDB to find the name */
 337
 338         for (kbuf = tdb_firstkey(tdb);
 339              kbuf.dptr;
 340              newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
 341
 342                 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
 343
 344                 dbuf = tdb_fetch(tdb, kbuf);
 345                 if (!dbuf.dptr)
 346                         continue;
 347
 348                 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
 349
 350                 string_to_sid(&map->sid, string_sid);
 351
 352                 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 353                                  &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
 354
 355                 SAFE_FREE(dbuf.dptr);
 356
 357                 if ( ret == -1 ) {
 358                         DEBUG(3,("get_group_map_from_ntname: tdb_unpack failure\n"));
 359                         return False;
 360                 }
 361
 362                 if (StrCaseCmp(name, map->nt_name)==0) {
 363                         SAFE_FREE(kbuf.dptr);
 364                         return True;
 365                 }
 366         }
 367
 368         return False;
 369 }
 370
 371 /****************************************************************************
 372  Remove a group mapping entry.
 373 ****************************************************************************/
 374
 375 static BOOL group_map_remove(DOM_SID sid)
 376 {
 377         TDB_DATA kbuf, dbuf;
 378         pstring key;
 379         fstring string_sid;
 380
 381         if(!init_group_mapping()) {
 382                 DEBUG(0,("failed to initialize group mapping"));
 383                 return(False);
 384         }
 385
 386         /* the key is the SID, retrieving is direct */
 387
 388         sid_to_string(string_sid, &sid);
 389         slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
 390
 391         kbuf.dptr = key;
 392         kbuf.dsize = strlen(key)+1;
 393
 394         dbuf = tdb_fetch(tdb, kbuf);
 395         if (!dbuf.dptr)
 396                 return False;
 397
 398         SAFE_FREE(dbuf.dptr);
 399
 400         if(tdb_delete(tdb, kbuf) != TDB_SUCCESS)
 401                 return False;
 402
 403         return True;
 404 }
 405
 406 /****************************************************************************
 407  Enumerate the group mapping.
 408 ****************************************************************************/
 409
 410 static BOOL enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **rmap,
 411                         int *num_entries, BOOL unix_only)
 412 {
 413         TDB_DATA kbuf, dbuf, newkey;
 414         fstring string_sid;
 415         fstring group_type;
 416         GROUP_MAP map;
 417         GROUP_MAP *mapt;
 418         int ret;
 419         int entries=0;
 420
 421         if(!init_group_mapping()) {
 422                 DEBUG(0,("failed to initialize group mapping"));
 423                 return(False);
 424         }
 425
 426         *num_entries=0;
 427         *rmap=NULL;
 428
 429         for (kbuf = tdb_firstkey(tdb);
 430              kbuf.dptr;
 431              newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
 432
 433                 if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0)
 434                         continue;
 435
 436                 dbuf = tdb_fetch(tdb, kbuf);
 437                 if (!dbuf.dptr)
 438                         continue;
 439
 440                 fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
 441
 442                 ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
 443                                  &map.gid, &map.sid_name_use, &map.nt_name, &map.comment);
 444
 445                 SAFE_FREE(dbuf.dptr);
 446
 447                 if ( ret == -1 ) {
 448                         DEBUG(3,("enum_group_mapping: tdb_unpack failure\n"));
 449                         continue;
 450                 }
 451
 452                 /* list only the type or everything if UNKNOWN */
 453                 if (sid_name_use!=SID_NAME_UNKNOWN  && sid_name_use!=map.sid_name_use) {
 454                         DEBUG(11,("enum_group_mapping: group %s is not of the requested type\n", map.nt_name));
 455                         continue;
 456                 }
 457
 458                 if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
 459                         DEBUG(11,("enum_group_mapping: group %s is non mapped\n", map.nt_name));
 460                         continue;
 461                 }
 462
 463                 string_to_sid(&map.sid, string_sid);
 464
 465                 decode_sid_name_use(group_type, map.sid_name_use);
 466                 DEBUG(11,("enum_group_mapping: returning group %s of type %s\n", map.nt_name ,group_type));
 467
 468                 mapt=(GROUP_MAP *)Realloc((*rmap), (entries+1)*sizeof(GROUP_MAP));
 469                 if (!mapt) {
 470                         DEBUG(0,("enum_group_mapping: Unable to enlarge group map!\n"));
 471                         SAFE_FREE(*rmap);
 472                         return False;
 473                 }
 474                 else
 475                         (*rmap) = mapt;
 476
 477                 mapt[entries].gid = map.gid;
 478                 sid_copy( &mapt[entries].sid, &map.sid);
 479                 mapt[entries].sid_name_use = map.sid_name_use;
 480                 fstrcpy(mapt[entries].nt_name, map.nt_name);
 481                 fstrcpy(mapt[entries].comment, map.comment);
 482
 483                 entries++;
 484
 485         }
 486
 487         *num_entries=entries;
 488
 489         return True;
 490 }
 491
 492 /*
 493  *
 494  * High level functions
 495  * better to use them than the lower ones.
 496  *
 497  * we are checking if the group is in the mapping file
 498  * and if the group is an existing unix group
 499  *
 500  */
 501
 502 /* get a domain group from it's SID */
 503
 504 BOOL get_domain_group_from_sid(DOM_SID sid, GROUP_MAP *map)
 505 {
 506         struct group *grp;
 507
 508         if(!init_group_mapping()) {
 509                 DEBUG(0,("failed to initialize group mapping"));
 510                 return(False);
 511         }
 512
 513         DEBUG(10, ("get_domain_group_from_sid\n"));
 514
 515         /* if the group is NOT in the database, it CAN NOT be a domain group */
 516         if(!pdb_getgrsid(map, sid))
 517                 return False;
 518
 519         DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
 520
 521         /* if it's not a domain group, continue */
 522         if (map->sid_name_use!=SID_NAME_DOM_GRP) {
 523                 return False;
 524         }
 525
 526         DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
 527
 528         if (map->gid==-1) {
 529                 return False;
 530         }
 531
 532         DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%lu\n",(unsigned long)map->gid));
 533
 534         grp = getgrgid(map->gid);
 535         if ( !grp ) {
 536                 DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
 537                 return False;
 538         }
 539
 540         DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
 541
 542         return True;
 543 }
 544
 545
 546 /* get a local (alias) group from it's SID */
 547
 548 BOOL get_local_group_from_sid(DOM_SID sid, GROUP_MAP *map)
 549 {
 550         if(!init_group_mapping()) {
 551                 DEBUG(0,("failed to initialize group mapping"));
 552                 return(False);
 553         }
 554
 555         /* The group is in the mapping table */
 556
 557         if( !pdb_getgrsid(map, sid) )
 558                 return False;
 559
 560         if ( (map->sid_name_use != SID_NAME_ALIAS)
 561                 || (map->gid == -1)
 562                 || (getgrgid(map->gid) == NULL) )
 563         {
 564                 return False;
 565         }
 566
 567 #if 0   /* JERRY */
 568         /* local groups only exist in the group mapping DB so this
 569            is not necessary */
 570
 571         else {
 572                 /* the group isn't in the mapping table.
 573                  * make one based on the unix information */
 574                 uint32 alias_rid;
 575
 576                 sid_peek_rid(&sid, &alias_rid);
 577                 map->gid=pdb_group_rid_to_gid(alias_rid);
 578
 579                 grp = getgrgid(map->gid);
 580                 if ( !grp ) {
 581                         DEBUG(3,("get_local_group_from_sid: No unix group for [%ul]\n", map->gid));
 582                         return False;
 583                 }
 584
 585                 map->sid_name_use=SID_NAME_ALIAS;
 586
 587                 fstrcpy(map->nt_name, grp->gr_name);
 588                 fstrcpy(map->comment, "Local Unix Group");
 589
 590                 sid_copy(&map->sid, &sid);
 591         }
 592 #endif
 593
 594         return True;
 595 }
 596
 597 /* get a builtin group from it's SID */
 598
 599 BOOL get_builtin_group_from_sid(DOM_SID sid, GROUP_MAP *map)
 600 {
 601         struct group *grp;
 602
 603         if(!init_group_mapping()) {
 604                 DEBUG(0,("failed to initialize group mapping"));
 605                 return(False);
 606         }
 607
 608         if(!pdb_getgrsid(map, sid))
 609                 return False;
 610
 611         if (map->sid_name_use!=SID_NAME_WKN_GRP) {
 612                 return False;
 613         }
 614
 615         if (map->gid==-1) {
 616                 return False;
 617         }
 618
 619         if ( (grp=getgrgid(map->gid)) == NULL) {
 620                 return False;
 621         }
 622
 623         return True;
 624 }
 625
 626
 627
 628 /****************************************************************************
 629 Returns a GROUP_MAP struct based on the gid.
 630 ****************************************************************************/
 631 BOOL get_group_from_gid(gid_t gid, GROUP_MAP *map)
 632 {
 633         struct group *grp;
 634         BOOL ret;
 635
 636         if(!init_group_mapping()) {
 637                 DEBUG(0,("failed to initialize group mapping"));
 638                 return(False);
 639         }
 640
 641         if ( (grp=getgrgid(gid)) == NULL)
 642                 return False;
 643
 644         /*
 645          * make a group map from scratch if doesn't exist.
 646          */
 647
 648         become_root();
 649         ret = pdb_getgrgid(map, gid);
 650         unbecome_root();
 651
 652         if ( !ret ) {
 653                 map->gid=gid;
 654                 map->sid_name_use=SID_NAME_ALIAS;
 655
 656                 /* interim solution until we have a last RID allocated */
 657
 658                 sid_copy(&map->sid, get_global_sam_sid());
 659                 sid_append_rid(&map->sid, pdb_gid_to_group_rid(gid));
 660
 661                 fstrcpy(map->nt_name, grp->gr_name);
 662                 fstrcpy(map->comment, "Local Unix Group");
 663         }
 664
 665         return True;
 666 }
 667
 668
 669
 670
 671 /****************************************************************************
 672  Get the member users of a group and
 673  all the users who have that group as primary.
 674
 675  give back an array of uid
 676  return the grand number of users
 677
 678
 679  TODO: sort the list and remove duplicate. JFM.
 680
 681 ****************************************************************************/
 682
 683 BOOL get_uid_list_of_group(gid_t gid, uid_t **uid, int *num_uids)
 684 {
 685         struct group *grp;
 686         struct passwd *pwd;
 687         int i=0;
 688         char *gr;
 689         uid_t *u;
 690
 691         if(!init_group_mapping()) {
 692                 DEBUG(0,("failed to initialize group mapping"));
 693                 return(False);
 694         }
 695
 696         *num_uids = 0;
 697         *uid=NULL;
 698
 699         if ( (grp=getgrgid(gid)) == NULL)
 700                 return False;
 701
 702         gr = grp->gr_mem[0];
 703         DEBUG(10, ("getting members\n"));
 704
 705         while (gr && (*gr != (char)'\0')) {
 706                 u = Realloc((*uid), sizeof(uid_t)*(*num_uids+1));
 707                 if (!u) {
 708                         DEBUG(0,("get_uid_list_of_group: unable to enlarge uid list!\n"));
 709                         return False;
 710                 }
 711                 else (*uid) = u;
 712
 713                 if( (pwd=getpwnam_alloc(gr)) !=NULL) {
 714                         (*uid)[*num_uids]=pwd->pw_uid;
 715                         (*num_uids)++;
 716                         passwd_free(&pwd);
 717                 }
 718                 gr = grp->gr_mem[++i];
 719         }
 720         DEBUG(10, ("got [%d] members\n", *num_uids));
 721
 722         setpwent();
 723         while ((pwd=getpwent()) != NULL) {
 724                 if (pwd->pw_gid==gid) {
 725                         u = Realloc((*uid), sizeof(uid_t)*(*num_uids+1));
 726                         if (!u) {
 727                                 DEBUG(0,("get_uid_list_of_group: unable to enlarge uid list!\n"));
 728                                 return False;
 729                         }
 730                         else (*uid) = u;
 731                         (*uid)[*num_uids]=pwd->pw_uid;
 732
 733                         (*num_uids)++;
 734                 }
 735         }
 736         endpwent();
 737         DEBUG(10, ("got primary groups, members: [%d]\n", *num_uids));
 738
 739         return True;
 740 }
 741
 742 /****************************************************************************
 743  Create a UNIX group on demand.
 744 ****************************************************************************/
 745
 746 int smb_create_group(char *unix_group, gid_t *new_gid)
 747 {
 748         pstring add_script;
 749         int     ret = -1;
 750         int     fd = 0;
 751
 752         *new_gid = 0;
 753
 754         /* defer to scripts */
 755
 756         if ( *lp_addgroup_script() ) {
 757                 pstrcpy(add_script, lp_addgroup_script());
 758                 pstring_sub(add_script, "%g", unix_group);
 759                 ret = smbrun(add_script, (new_gid!=NULL) ? &fd : NULL);
 760                 DEBUG(3,("smb_create_group: Running the command `%s' gave %d\n",add_script,ret));
 761                 if (ret != 0)
 762                         return ret;
 763
 764                 if (fd != 0) {
 765                         fstring output;
 766
 767                         *new_gid = 0;
 768                         if (read(fd, output, sizeof(output)) > 0) {
 769                                 *new_gid = (gid_t)strtoul(output, NULL, 10);
 770                         }
 771
 772                         close(fd);
 773                 }
 774         }
 775
 776         /* Try winbindd */
 777
 778         if ( winbind_create_group( unix_group, NULL ) ) {
 779                 DEBUG(3,("smb_create_group: winbindd created the group (%s)\n",
 780                         unix_group));
 781                 ret = 0;
 782         }
 783
 784         if (*new_gid == 0) {
 785                 struct group *grp = getgrnam(unix_group);
 786
 787                 if (grp != NULL)
 788                         *new_gid = grp->gr_gid;
 789         }
 790
 791         return ret;
 792 }
 793
 794 /****************************************************************************
 795  Delete a UNIX group on demand.
 796 ****************************************************************************/
 797
 798 int smb_delete_group(char *unix_group)
 799 {
 800         pstring del_script;
 801         int ret;
 802
 803         /* defer to scripts */
 804
 805         if ( *lp_delgroup_script() ) {
 806                 pstrcpy(del_script, lp_delgroup_script());
 807                 pstring_sub(del_script, "%g", unix_group);
 808                 ret = smbrun(del_script,NULL);
 809                 DEBUG(3,("smb_delete_group: Running the command `%s' gave %d\n",del_script,ret));
 810                 return ret;
 811         }
 812
 813         if ( winbind_delete_group( unix_group ) ) {
 814                 DEBUG(3,("smb_delete_group: winbindd deleted the group (%s)\n",
 815                         unix_group));
 816                 return 0;
 817         }
 818
 819         return -1;
 820 }
 821
 822 /****************************************************************************
 823  Set a user's primary UNIX group.
 824 ****************************************************************************/
 825 int smb_set_primary_group(const char *unix_group, const char* unix_user)
 826 {
 827         pstring add_script;
 828         int ret;
 829
 830         /* defer to scripts */
 831
 832         if ( *lp_setprimarygroup_script() ) {
 833                 pstrcpy(add_script, lp_setprimarygroup_script());
 834                 all_string_sub(add_script, "%g", unix_group, sizeof(add_script));
 835                 all_string_sub(add_script, "%u", unix_user, sizeof(add_script));
 836                 ret = smbrun(add_script,NULL);
 837                 DEBUG(3,("smb_set_primary_group: "
 838                          "Running the command `%s' gave %d\n",add_script,ret));
 839                 return ret;
 840         }
 841
 842         /* Try winbindd */
 843
 844         if ( winbind_set_user_primary_group( unix_user, unix_group ) ) {
 845                 DEBUG(3,("smb_delete_group: winbindd set the group (%s) as the primary group for user (%s)\n",
 846                         unix_group, unix_user));
 847                 return 0;
 848         }
 849
 850         return -1;
 851 }
 852
 853 /****************************************************************************
 854  Add a user to a UNIX group.
 855 ****************************************************************************/
 856
 857 int smb_add_user_group(char *unix_group, char *unix_user)
 858 {
 859         pstring add_script;
 860         int ret;
 861
 862         /* defer to scripts */
 863
 864         if ( *lp_addusertogroup_script() ) {
 865                 pstrcpy(add_script, lp_addusertogroup_script());
 866                 pstring_sub(add_script, "%g", unix_group);
 867                 pstring_sub(add_script, "%u", unix_user);
 868                 ret = smbrun(add_script,NULL);
 869                 DEBUG(3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script,ret));
 870                 return ret;
 871         }
 872
 873         /* Try winbindd */
 874
 875         if ( winbind_add_user_to_group( unix_user, unix_group ) ) {
 876                 DEBUG(3,("smb_delete_group: winbindd added user (%s) to the group (%s)\n",
 877                         unix_user, unix_group));
 878                 return -1;
 879         }
 880
 881         return -1;
 882 }
 883
 884 /****************************************************************************
 885  Delete a user from a UNIX group
 886 ****************************************************************************/
 887
 888 int smb_delete_user_group(const char *unix_group, const char *unix_user)
 889 {
 890         pstring del_script;
 891         int ret;
 892
 893         /* defer to scripts */
 894
 895         if ( *lp_deluserfromgroup_script() ) {
 896                 pstrcpy(del_script, lp_deluserfromgroup_script());
 897                 pstring_sub(del_script, "%g", unix_group);
 898                 pstring_sub(del_script, "%u", unix_user);
 899                 ret = smbrun(del_script,NULL);
 900                 DEBUG(3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script,ret));
 901                 return ret;
 902         }
 903
 904         /* Try winbindd */
 905
 906         if ( winbind_remove_user_from_group( unix_user, unix_group ) ) {
 907                 DEBUG(3,("smb_delete_group: winbindd removed user (%s) from the group (%s)\n",
 908                         unix_user, unix_group));
 909                 return 0;
 910         }
 911
 912         return -1;
 913 }
 914
 915
 916 NTSTATUS pdb_default_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 917                                  DOM_SID sid)
 918 {
 919         return get_group_map_from_sid(sid, map) ?
 920                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 921 }
 922
 923 NTSTATUS pdb_default_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
 924                                  gid_t gid)
 925 {
 926         return get_group_map_from_gid(gid, map) ?
 927                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 928 }
 929
 930 NTSTATUS pdb_default_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
 931                                  const char *name)
 932 {
 933         return get_group_map_from_ntname(name, map) ?
 934                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 935 }
 936
 937 NTSTATUS pdb_default_add_group_mapping_entry(struct pdb_methods *methods,
 938                                                 GROUP_MAP *map)
 939 {
 940         return add_mapping_entry(map, TDB_INSERT) ?
 941                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 942 }
 943
 944 NTSTATUS pdb_default_update_group_mapping_entry(struct pdb_methods *methods,
 945                                                    GROUP_MAP *map)
 946 {
 947         return add_mapping_entry(map, TDB_REPLACE) ?
 948                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 949 }
 950
 951 NTSTATUS pdb_default_delete_group_mapping_entry(struct pdb_methods *methods,
 952                                                    DOM_SID sid)
 953 {
 954         return group_map_remove(sid) ?
 955                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 956 }
 957
 958 NTSTATUS pdb_default_enum_group_mapping(struct pdb_methods *methods,
 959                                            enum SID_NAME_USE sid_name_use,
 960                                            GROUP_MAP **rmap, int *num_entries,
 961                                            BOOL unix_only)
 962 {
 963         return enum_group_mapping(sid_name_use, rmap, num_entries, unix_only) ?
 964                 NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
 965 }
 966
 967 /**********************************************************************
 968  no ops for passdb backends that don't implement group mapping
 969  *********************************************************************/
 970
 971 NTSTATUS pdb_nop_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
 972                                  DOM_SID sid)
 973 {
 974         return NT_STATUS_UNSUCCESSFUL;
 975 }
 976
 977 NTSTATUS pdb_nop_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
 978                                  gid_t gid)
 979 {
 980         return NT_STATUS_UNSUCCESSFUL;
 981 }
 982
 983 NTSTATUS pdb_nop_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
 984                                  const char *name)
 985 {
 986         return NT_STATUS_UNSUCCESSFUL;
 987 }
 988
 989 NTSTATUS pdb_nop_add_group_mapping_entry(struct pdb_methods *methods,
 990                                                 GROUP_MAP *map)
 991 {
 992         return NT_STATUS_UNSUCCESSFUL;
 993 }
 994
 995 NTSTATUS pdb_nop_update_group_mapping_entry(struct pdb_methods *methods,
 996                                                    GROUP_MAP *map)
 997 {
 998         return NT_STATUS_UNSUCCESSFUL;
 999 }
1000
1001 NTSTATUS pdb_nop_delete_group_mapping_entry(struct pdb_methods *methods,
1002                                                    DOM_SID sid)
1003 {
1004         return NT_STATUS_UNSUCCESSFUL;
1005 }
1006
1007 NTSTATUS pdb_nop_enum_group_mapping(struct pdb_methods *methods,
1008                                            enum SID_NAME_USE sid_name_use,
1009                                            GROUP_MAP **rmap, int *num_entries,
1010                                            BOOL unix_only)
1011 {
1012         return NT_STATUS_UNSUCCESSFUL;
1013 }
1014