source3/passdb/pdb_interface.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Password and authentication handling
   4    Copyright (C) Andrew Bartlett                        2002
   5    Copyright (C) Jelmer Vernooij                        2002
   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 #undef DBGC_CLASS
  25 #define DBGC_CLASS DBGC_PASSDB
  26
  27 static struct pdb_init_function_entry *backends = NULL;
  28
  29 static void lazy_initialize_passdb(void)
  30 {
  31         static BOOL initialized = False;
  32         if(initialized)return;
  33         static_init_pdb;
  34         initialized = True;
  35 }
  36
  37 static struct pdb_init_function_entry *pdb_find_backend_entry(const char *name);
  38
  39 NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
  40 {
  41         struct pdb_init_function_entry *entry = backends;
  42
  43         if(version != PASSDB_INTERFACE_VERSION) {
  44                 DEBUG(0,("Can't register passdb backend!\n"
  45                          "You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
  46                          "while this version of samba uses version %d\n",
  47                          version,PASSDB_INTERFACE_VERSION));
  48                 return NT_STATUS_OBJECT_TYPE_MISMATCH;
  49         }
  50
  51         if (!name || !init) {
  52                 return NT_STATUS_INVALID_PARAMETER;
  53         }
  54
  55         DEBUG(5,("Attempting to register passdb backend %s\n", name));
  56
  57         /* Check for duplicates */
  58         if (pdb_find_backend_entry(name)) {
  59                 DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
  60                 return NT_STATUS_OBJECT_NAME_COLLISION;
  61         }
  62
  63         entry = smb_xmalloc(sizeof(struct pdb_init_function_entry));
  64         entry->name = smb_xstrdup(name);
  65         entry->init = init;
  66
  67         DLIST_ADD(backends, entry);
  68         DEBUG(5,("Successfully added passdb backend '%s'\n", name));
  69         return NT_STATUS_OK;
  70 }
  71
  72 static struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
  73 {
  74         struct pdb_init_function_entry *entry = backends;
  75
  76         while(entry) {
  77                 if (strcasecmp(entry->name, name) == 0) return entry;
  78                 entry = entry->next;
  79         }
  80
  81         return NULL;
  82 }
  83
  84 static NTSTATUS context_setsampwent(struct pdb_context *context, BOOL update)
  85 {
  86         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
  87
  88         if (!context) {
  89                 DEBUG(0, ("invalid pdb_context specified!\n"));
  90                 return ret;
  91         }
  92
  93         context->pwent_methods = context->pdb_methods;
  94
  95         if (!context->pwent_methods) {
  96                 /* No passdbs at all */
  97                 return ret;
  98         }
  99
 100         while (NT_STATUS_IS_ERR(ret = context->pwent_methods->setsampwent(context->pwent_methods, update))) {
 101                 context->pwent_methods = context->pwent_methods->next;
 102                 if (context->pwent_methods == NULL)
 103                         return NT_STATUS_UNSUCCESSFUL;
 104         }
 105         return ret;
 106 }
 107
 108 static void context_endsampwent(struct pdb_context *context)
 109 {
 110         if ((!context)){
 111                 DEBUG(0, ("invalid pdb_context specified!\n"));
 112                 return;
 113         }
 114
 115         if (context->pwent_methods && context->pwent_methods->endsampwent)
 116                 context->pwent_methods->endsampwent(context->pwent_methods);
 117
 118         /* So we won't get strange data when calling getsampwent now */
 119         context->pwent_methods = NULL;
 120 }
 121
 122 static NTSTATUS context_getsampwent(struct pdb_context *context, SAM_ACCOUNT *user)
 123 {
 124         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 125
 126         if ((!context) || (!context->pwent_methods)) {
 127                 DEBUG(0, ("invalid pdb_context specified!\n"));
 128                 return ret;
 129         }
 130         /* Loop until we find something useful */
 131         while (NT_STATUS_IS_ERR(ret = context->pwent_methods->getsampwent(context->pwent_methods, user))) {
 132
 133                 context->pwent_methods->endsampwent(context->pwent_methods);
 134
 135                 context->pwent_methods = context->pwent_methods->next;
 136
 137                 /* All methods are checked now. There are no more entries */
 138                 if (context->pwent_methods == NULL)
 139                         return ret;
 140
 141                 context->pwent_methods->setsampwent(context->pwent_methods, False);
 142         }
 143         user->methods = context->pwent_methods;
 144         return ret;
 145 }
 146
 147 static NTSTATUS context_getsampwnam(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const char *username)
 148 {
 149         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 150
 151         struct pdb_methods *curmethods;
 152         if ((!context)) {
 153                 DEBUG(0, ("invalid pdb_context specified!\n"));
 154                 return ret;
 155         }
 156         curmethods = context->pdb_methods;
 157         while (curmethods){
 158                 if (NT_STATUS_IS_OK(ret = curmethods->getsampwnam(curmethods, sam_acct, username))) {
 159                         sam_acct->methods = curmethods;
 160                         return ret;
 161                 }
 162                 curmethods = curmethods->next;
 163         }
 164
 165         return ret;
 166 }
 167
 168 static NTSTATUS context_getsampwsid(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const DOM_SID *sid)
 169 {
 170         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 171
 172         struct pdb_methods *curmethods;
 173         if ((!context)) {
 174                 DEBUG(0, ("invalid pdb_context specified!\n"));
 175                 return ret;
 176         }
 177
 178         curmethods = context->pdb_methods;
 179
 180         while (curmethods){
 181                 if (NT_STATUS_IS_OK(ret = curmethods->getsampwsid(curmethods, sam_acct, sid))) {
 182                         sam_acct->methods = curmethods;
 183                         return ret;
 184                 }
 185                 curmethods = curmethods->next;
 186         }
 187
 188         return ret;
 189 }
 190
 191 static NTSTATUS context_add_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
 192 {
 193         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 194
 195         if ((!context) || (!context->pdb_methods)) {
 196                 DEBUG(0, ("invalid pdb_context specified!\n"));
 197                 return ret;
 198         }
 199
 200         /** @todo  This is where a 're-read on add' should be done */
 201         /* We now add a new account to the first database listed.
 202          * Should we? */
 203
 204         return context->pdb_methods->add_sam_account(context->pdb_methods, sam_acct);
 205 }
 206
 207 static NTSTATUS context_update_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
 208 {
 209         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 210
 211         if (!context) {
 212                 DEBUG(0, ("invalid pdb_context specified!\n"));
 213                 return ret;
 214         }
 215
 216         if (!sam_acct || !sam_acct->methods){
 217                 DEBUG(0, ("invalid sam_acct specified\n"));
 218                 return ret;
 219         }
 220
 221         /** @todo  This is where a 're-read on update' should be done */
 222
 223         return sam_acct->methods->update_sam_account(sam_acct->methods, sam_acct);
 224 }
 225
 226 static NTSTATUS context_delete_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
 227 {
 228         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 229
 230         struct pdb_methods *pdb_selected;
 231         if (!context) {
 232                 DEBUG(0, ("invalid pdb_context specified!\n"));
 233                 return ret;
 234         }
 235
 236         if (!sam_acct->methods){
 237                 pdb_selected = context->pdb_methods;
 238                 /* There's no passdb backend specified for this account.
 239                  * Try to delete it in every passdb available
 240                  * Needed to delete accounts in smbpasswd that are not
 241                  * in /etc/passwd.
 242                  */
 243                 while (pdb_selected){
 244                         if (NT_STATUS_IS_OK(ret = pdb_selected->delete_sam_account(pdb_selected, sam_acct))) {
 245                                 return ret;
 246                         }
 247                         pdb_selected = pdb_selected->next;
 248                 }
 249                 return ret;
 250         }
 251
 252         if (!sam_acct->methods->delete_sam_account){
 253                 DEBUG(0,("invalid sam_acct->methods->delete_sam_account\n"));
 254                 return ret;
 255         }
 256
 257         return sam_acct->methods->delete_sam_account(sam_acct->methods, sam_acct);
 258 }
 259
 260 static NTSTATUS context_getgrsid(struct pdb_context *context,
 261                                  GROUP_MAP *map, DOM_SID sid, BOOL with_priv)
 262 {
 263         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 264
 265         struct pdb_methods *curmethods;
 266         if ((!context)) {
 267                 DEBUG(0, ("invalid pdb_context specified!\n"));
 268                 return ret;
 269         }
 270         curmethods = context->pdb_methods;
 271         while (curmethods){
 272                 ret = curmethods->getgrsid(curmethods, map, sid, with_priv);
 273                 if (NT_STATUS_IS_OK(ret)) {
 274                         map->methods = curmethods;
 275                         return ret;
 276                 }
 277                 curmethods = curmethods->next;
 278         }
 279
 280         return ret;
 281 }
 282
 283 static NTSTATUS context_getgrgid(struct pdb_context *context,
 284                                  GROUP_MAP *map, gid_t gid, BOOL with_priv)
 285 {
 286         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 287
 288         struct pdb_methods *curmethods;
 289         if ((!context)) {
 290                 DEBUG(0, ("invalid pdb_context specified!\n"));
 291                 return ret;
 292         }
 293         curmethods = context->pdb_methods;
 294         while (curmethods){
 295                 ret = curmethods->getgrgid(curmethods, map, gid, with_priv);
 296                 if (NT_STATUS_IS_OK(ret)) {
 297                         map->methods = curmethods;
 298                         return ret;
 299                 }
 300                 curmethods = curmethods->next;
 301         }
 302
 303         return ret;
 304 }
 305
 306 static NTSTATUS context_getgrnam(struct pdb_context *context,
 307                                  GROUP_MAP *map, char *name, BOOL with_priv)
 308 {
 309         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 310
 311         struct pdb_methods *curmethods;
 312         if ((!context)) {
 313                 DEBUG(0, ("invalid pdb_context specified!\n"));
 314                 return ret;
 315         }
 316         curmethods = context->pdb_methods;
 317         while (curmethods){
 318                 ret = curmethods->getgrnam(curmethods, map, name, with_priv);
 319                 if (NT_STATUS_IS_OK(ret)) {
 320                         map->methods = curmethods;
 321                         return ret;
 322                 }
 323                 curmethods = curmethods->next;
 324         }
 325
 326         return ret;
 327 }
 328
 329 static NTSTATUS context_add_group_mapping_entry(struct pdb_context *context,
 330                                                 GROUP_MAP *map)
 331 {
 332         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 333
 334         if ((!context) || (!context->pdb_methods)) {
 335                 DEBUG(0, ("invalid pdb_context specified!\n"));
 336                 return ret;
 337         }
 338
 339         return context->pdb_methods->add_group_mapping_entry(context->pdb_methods,
 340                                                              map);
 341 }
 342
 343 static NTSTATUS context_update_group_mapping_entry(struct pdb_context *context,
 344                                                    GROUP_MAP *map)
 345 {
 346         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 347
 348         if ((!context) || (!context->pdb_methods)) {
 349                 DEBUG(0, ("invalid pdb_context specified!\n"));
 350                 return ret;
 351         }
 352
 353         return context->
 354                 pdb_methods->update_group_mapping_entry(context->pdb_methods, map);
 355 }
 356
 357 static NTSTATUS context_delete_group_mapping_entry(struct pdb_context *context,
 358                                                    DOM_SID sid)
 359 {
 360         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 361
 362         if ((!context) || (!context->pdb_methods)) {
 363                 DEBUG(0, ("invalid pdb_context specified!\n"));
 364                 return ret;
 365         }
 366
 367         return context->
 368                 pdb_methods->delete_group_mapping_entry(context->pdb_methods, sid);
 369 }
 370
 371 static NTSTATUS context_enum_group_mapping(struct pdb_context *context,
 372                                            enum SID_NAME_USE sid_name_use,
 373                                            GROUP_MAP **rmap, int *num_entries,
 374                                            BOOL unix_only, BOOL with_priv)
 375 {
 376         NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
 377
 378         if ((!context) || (!context->pdb_methods)) {
 379                 DEBUG(0, ("invalid pdb_context specified!\n"));
 380                 return ret;
 381         }
 382
 383         return context->pdb_methods->enum_group_mapping(context->pdb_methods,
 384                                                         sid_name_use, rmap,
 385                                                         num_entries, unix_only,
 386                                                         with_priv);
 387 }
 388
 389 /******************************************************************
 390   Free and cleanup a pdb context, any associated data and anything
 391   that the attached modules might have associated.
 392  *******************************************************************/
 393
 394 static void free_pdb_context(struct pdb_context **context)
 395 {
 396         struct pdb_methods *pdb_selected = (*context)->pdb_methods;
 397
 398         while (pdb_selected){
 399                 if(pdb_selected->free_private_data)
 400                         pdb_selected->free_private_data(&(pdb_selected->private_data));
 401                 pdb_selected = pdb_selected->next;
 402         }
 403
 404         talloc_destroy((*context)->mem_ctx);
 405         *context = NULL;
 406 }
 407
 408 /******************************************************************
 409   Make a pdb_methods from scratch
 410  *******************************************************************/
 411
 412 static NTSTATUS make_pdb_methods_name(struct pdb_methods **methods, struct pdb_context *context, const char *selected)
 413 {
 414         char *module_name = smb_xstrdup(selected);
 415         char *module_location = NULL, *p;
 416         struct pdb_init_function_entry *entry;
 417         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
 418
 419         lazy_initialize_passdb();
 420
 421         p = strchr(module_name, ':');
 422
 423         if (p) {
 424                 *p = 0;
 425                 module_location = p+1;
 426                 trim_string(module_location, " ", " ");
 427         }
 428
 429         trim_string(module_name, " ", " ");
 430
 431
 432         DEBUG(5,("Attempting to find an passdb backend to match %s (%s)\n", selected, module_name));
 433
 434         entry = pdb_find_backend_entry(module_name);
 435
 436         /* Try to find a module that contains this module */
 437         if (!entry) {
 438                 DEBUG(2,("No builtin backend found, trying to load plugin\n"));
 439                 if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
 440                         DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
 441                         SAFE_FREE(module_name);
 442                         return NT_STATUS_UNSUCCESSFUL;
 443                 }
 444         }
 445
 446         /* No such backend found */
 447         if(!entry) {
 448                 DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
 449                 SAFE_FREE(module_name);
 450                 return NT_STATUS_INVALID_PARAMETER;
 451         }
 452
 453         DEBUG(5,("Found pdb backend %s\n", module_name));
 454         nt_status = entry->init(context, methods, module_location);
 455         if (NT_STATUS_IS_OK(nt_status)) {
 456                 DEBUG(5,("pdb backend %s has a valid init\n", selected));
 457         } else {
 458                 DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n", selected, nt_errstr(nt_status)));
 459         }
 460         SAFE_FREE(module_name);
 461         return nt_status;
 462 }
 463
 464 /******************************************************************
 465   Make a pdb_context from scratch.
 466  *******************************************************************/
 467
 468 static NTSTATUS make_pdb_context(struct pdb_context **context)
 469 {
 470         TALLOC_CTX *mem_ctx;
 471
 472         mem_ctx = talloc_init("pdb_context internal allocation context");
 473
 474         if (!mem_ctx) {
 475                 DEBUG(0, ("make_pdb_context: talloc init failed!\n"));
 476                 return NT_STATUS_NO_MEMORY;
 477         }
 478
 479         *context = talloc(mem_ctx, sizeof(**context));
 480         if (!*context) {
 481                 DEBUG(0, ("make_pdb_context: talloc failed!\n"));
 482                 return NT_STATUS_NO_MEMORY;
 483         }
 484
 485         ZERO_STRUCTP(*context);
 486
 487         (*context)->mem_ctx = mem_ctx;
 488
 489         (*context)->pdb_setsampwent = context_setsampwent;
 490         (*context)->pdb_endsampwent = context_endsampwent;
 491         (*context)->pdb_getsampwent = context_getsampwent;
 492         (*context)->pdb_getsampwnam = context_getsampwnam;
 493         (*context)->pdb_getsampwsid = context_getsampwsid;
 494         (*context)->pdb_add_sam_account = context_add_sam_account;
 495         (*context)->pdb_update_sam_account = context_update_sam_account;
 496         (*context)->pdb_delete_sam_account = context_delete_sam_account;
 497         (*context)->pdb_getgrsid = context_getgrsid;
 498         (*context)->pdb_getgrgid = context_getgrgid;
 499         (*context)->pdb_getgrnam = context_getgrnam;
 500         (*context)->pdb_add_group_mapping_entry = context_add_group_mapping_entry;
 501         (*context)->pdb_update_group_mapping_entry = context_update_group_mapping_entry;
 502         (*context)->pdb_delete_group_mapping_entry = context_delete_group_mapping_entry;
 503         (*context)->pdb_enum_group_mapping = context_enum_group_mapping;
 504
 505         (*context)->free_fn = free_pdb_context;
 506
 507         return NT_STATUS_OK;
 508 }
 509
 510
 511 /******************************************************************
 512   Make a pdb_context, given an array of strings
 513  *******************************************************************/
 514
 515 NTSTATUS make_pdb_context_list(struct pdb_context **context, const char **selected)
 516 {
 517         int i = 0;
 518         struct pdb_methods *curmethods, *tmpmethods;
 519         NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
 520
 521         if (!NT_STATUS_IS_OK(nt_status = make_pdb_context(context))) {
 522                 return nt_status;
 523         }
 524
 525         while (selected[i]){
 526                 /* Try to initialise pdb */
 527                 DEBUG(5,("Trying to load: %s\n", selected[i]));
 528                 if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods_name(&curmethods, *context, selected[i]))) {
 529                         DEBUG(1, ("Loading %s failed!\n", selected[i]));
 530                         free_pdb_context(context);
 531                         return nt_status;
 532                 }
 533                 curmethods->parent = *context;
 534                 DLIST_ADD_END((*context)->pdb_methods, curmethods, tmpmethods);
 535                 i++;
 536         }
 537
 538         return NT_STATUS_OK;
 539 }
 540
 541 /******************************************************************
 542   Make a pdb_context, given a text string.
 543  *******************************************************************/
 544
 545 NTSTATUS make_pdb_context_string(struct pdb_context **context, const char *selected)
 546 {
 547         NTSTATUS ret;
 548         char **newsel = str_list_make(selected, NULL);
 549         ret = make_pdb_context_list(context, (const char **)newsel);
 550         str_list_free(&newsel);
 551         return ret;
 552 }
 553
 554 /******************************************************************
 555  Return an already initialised pdb_context, to facilitate backward
 556  compatibility (see functions below).
 557 *******************************************************************/
 558
 559 static struct pdb_context *pdb_get_static_context(BOOL reload)
 560 {
 561         static struct pdb_context *pdb_context = NULL;
 562
 563         if ((pdb_context) && (reload)) {
 564                 pdb_context->free_fn(&pdb_context);
 565                 if (NT_STATUS_IS_ERR(make_pdb_context_list(&pdb_context, lp_passdb_backend()))) {
 566                         return NULL;
 567                 }
 568         }
 569
 570         if (!pdb_context) {
 571                 if (NT_STATUS_IS_ERR(make_pdb_context_list(&pdb_context, lp_passdb_backend()))) {
 572                         return NULL;
 573                 }
 574         }
 575
 576         return pdb_context;
 577 }
 578
 579 /******************************************************************
 580  Backward compatibility functions for the original passdb interface
 581 *******************************************************************/
 582
 583 BOOL pdb_setsampwent(BOOL update)
 584 {
 585         struct pdb_context *pdb_context = pdb_get_static_context(False);
 586
 587         if (!pdb_context) {
 588                 return False;
 589         }
 590
 591         return NT_STATUS_IS_OK(pdb_context->pdb_setsampwent(pdb_context, update));
 592 }
 593
 594 void pdb_endsampwent(void)
 595 {
 596         struct pdb_context *pdb_context = pdb_get_static_context(False);
 597
 598         if (!pdb_context) {
 599                 return;
 600         }
 601
 602         pdb_context->pdb_endsampwent(pdb_context);
 603 }
 604
 605 BOOL pdb_getsampwent(SAM_ACCOUNT *user)
 606 {
 607         struct pdb_context *pdb_context = pdb_get_static_context(False);
 608
 609         if (!pdb_context) {
 610                 return False;
 611         }
 612
 613         return NT_STATUS_IS_OK(pdb_context->pdb_getsampwent(pdb_context, user));
 614 }
 615
 616 BOOL pdb_getsampwnam(SAM_ACCOUNT *sam_acct, const char *username)
 617 {
 618         struct pdb_context *pdb_context = pdb_get_static_context(False);
 619
 620         if (!pdb_context) {
 621                 return False;
 622         }
 623
 624         return NT_STATUS_IS_OK(pdb_context->pdb_getsampwnam(pdb_context, sam_acct, username));
 625 }
 626
 627 BOOL pdb_getsampwsid(SAM_ACCOUNT *sam_acct, const DOM_SID *sid)
 628 {
 629         struct pdb_context *pdb_context = pdb_get_static_context(False);
 630
 631         if (!pdb_context) {
 632                 return False;
 633         }
 634
 635         return NT_STATUS_IS_OK(pdb_context->pdb_getsampwsid(pdb_context, sam_acct, sid));
 636 }
 637
 638 BOOL pdb_add_sam_account(SAM_ACCOUNT *sam_acct)
 639 {
 640         struct pdb_context *pdb_context = pdb_get_static_context(False);
 641
 642         if (!pdb_context) {
 643                 return False;
 644         }
 645
 646         return NT_STATUS_IS_OK(pdb_context->pdb_add_sam_account(pdb_context, sam_acct));
 647 }
 648
 649 BOOL pdb_update_sam_account(SAM_ACCOUNT *sam_acct)
 650 {
 651         struct pdb_context *pdb_context = pdb_get_static_context(False);
 652
 653         if (!pdb_context) {
 654                 return False;
 655         }
 656
 657         return NT_STATUS_IS_OK(pdb_context->pdb_update_sam_account(pdb_context, sam_acct));
 658 }
 659
 660 BOOL pdb_delete_sam_account(SAM_ACCOUNT *sam_acct)
 661 {
 662         struct pdb_context *pdb_context = pdb_get_static_context(False);
 663
 664         if (!pdb_context) {
 665                 return False;
 666         }
 667
 668         return NT_STATUS_IS_OK(pdb_context->pdb_delete_sam_account(pdb_context, sam_acct));
 669 }
 670
 671 BOOL pdb_getgrsid(GROUP_MAP *map, DOM_SID sid, BOOL with_priv)
 672 {
 673         struct pdb_context *pdb_context = pdb_get_static_context(False);
 674
 675         if (!pdb_context) {
 676                 return False;
 677         }
 678
 679         return NT_STATUS_IS_OK(pdb_context->
 680                                pdb_getgrsid(pdb_context, map, sid, with_priv));
 681 }
 682
 683 BOOL pdb_getgrgid(GROUP_MAP *map, gid_t gid, BOOL with_priv)
 684 {
 685         struct pdb_context *pdb_context = pdb_get_static_context(False);
 686
 687         if (!pdb_context) {
 688                 return False;
 689         }
 690
 691         return NT_STATUS_IS_OK(pdb_context->
 692                                pdb_getgrgid(pdb_context, map, gid, with_priv));
 693 }
 694
 695 BOOL pdb_getgrnam(GROUP_MAP *map, char *name, BOOL with_priv)
 696 {
 697         struct pdb_context *pdb_context = pdb_get_static_context(False);
 698
 699         if (!pdb_context) {
 700                 return False;
 701         }
 702
 703         return NT_STATUS_IS_OK(pdb_context->
 704                                pdb_getgrnam(pdb_context, map, name, with_priv));
 705 }
 706
 707 BOOL pdb_add_group_mapping_entry(GROUP_MAP *map)
 708 {
 709         struct pdb_context *pdb_context = pdb_get_static_context(False);
 710
 711         if (!pdb_context) {
 712                 return False;
 713         }
 714
 715         return NT_STATUS_IS_OK(pdb_context->
 716                                pdb_add_group_mapping_entry(pdb_context, map));
 717 }
 718
 719 BOOL pdb_update_group_mapping_entry(GROUP_MAP *map)
 720 {
 721         struct pdb_context *pdb_context = pdb_get_static_context(False);
 722
 723         if (!pdb_context) {
 724                 return False;
 725         }
 726
 727         return NT_STATUS_IS_OK(pdb_context->
 728                                pdb_update_group_mapping_entry(pdb_context, map));
 729 }
 730
 731 BOOL pdb_delete_group_mapping_entry(DOM_SID sid)
 732 {
 733         struct pdb_context *pdb_context = pdb_get_static_context(False);
 734
 735         if (!pdb_context) {
 736                 return False;
 737         }
 738
 739         return NT_STATUS_IS_OK(pdb_context->
 740                                pdb_delete_group_mapping_entry(pdb_context, sid));
 741 }
 742
 743 BOOL pdb_enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **rmap,
 744                             int *num_entries, BOOL unix_only, BOOL with_priv)
 745 {
 746         struct pdb_context *pdb_context = pdb_get_static_context(False);
 747
 748         if (!pdb_context) {
 749                 return False;
 750         }
 751
 752         return NT_STATUS_IS_OK(pdb_context->
 753                                pdb_enum_group_mapping(pdb_context, sid_name_use,
 754                                                       rmap, num_entries, unix_only,
 755                                                       with_priv));
 756 }
 757
 758 /***************************************************************
 759   Initialize the static context (at smbd startup etc).
 760
 761   If uninitialised, context will auto-init on first use.
 762  ***************************************************************/
 763
 764 BOOL initialize_password_db(BOOL reload)
 765 {
 766         return (pdb_get_static_context(reload) != NULL);
 767 }
 768
 769
 770 /***************************************************************************
 771   Default implementations of some functions.
 772  ****************************************************************************/
 773
 774 static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, SAM_ACCOUNT *user, const char *sname)
 775 {
 776         return NT_STATUS_NO_SUCH_USER;
 777 }
 778
 779 static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid)
 780 {
 781         return NT_STATUS_NO_SUCH_USER;
 782 }
 783
 784 static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, SAM_ACCOUNT *newpwd)
 785 {
 786         DEBUG(0,("this backend (%s) should not be listed as the first passdb backend! You can't add users to it.\n", methods->name));
 787         return NT_STATUS_NOT_IMPLEMENTED;
 788 }
 789
 790 static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, SAM_ACCOUNT *newpwd)
 791 {
 792         return NT_STATUS_NOT_IMPLEMENTED;
 793 }
 794
 795 static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, SAM_ACCOUNT *pwd)
 796 {
 797         return NT_STATUS_NOT_IMPLEMENTED;
 798 }
 799
 800 static NTSTATUS pdb_default_setsampwent(struct pdb_methods *methods, BOOL update)
 801 {
 802         return NT_STATUS_NOT_IMPLEMENTED;
 803 }
 804
 805 static NTSTATUS pdb_default_getsampwent(struct pdb_methods *methods, SAM_ACCOUNT *user)
 806 {
 807         return NT_STATUS_NOT_IMPLEMENTED;
 808 }
 809
 810 static void pdb_default_endsampwent(struct pdb_methods *methods)
 811 {
 812         return; /* NT_STATUS_NOT_IMPLEMENTED; */
 813 }
 814
 815 NTSTATUS make_pdb_methods(TALLOC_CTX *mem_ctx, PDB_METHODS **methods)
 816 {
 817         *methods = talloc(mem_ctx, sizeof(struct pdb_methods));
 818
 819         if (!*methods) {
 820                 return NT_STATUS_NO_MEMORY;
 821         }
 822
 823         ZERO_STRUCTP(*methods);
 824
 825         (*methods)->setsampwent = pdb_default_setsampwent;
 826         (*methods)->endsampwent = pdb_default_endsampwent;
 827         (*methods)->getsampwent = pdb_default_getsampwent;
 828         (*methods)->getsampwnam = pdb_default_getsampwnam;
 829         (*methods)->getsampwsid = pdb_default_getsampwsid;
 830         (*methods)->add_sam_account = pdb_default_add_sam_account;
 831         (*methods)->update_sam_account = pdb_default_update_sam_account;
 832         (*methods)->delete_sam_account = pdb_default_delete_sam_account;
 833
 834         (*methods)->getgrsid = pdb_default_getgrsid;
 835         (*methods)->getgrgid = pdb_default_getgrgid;
 836         (*methods)->getgrnam = pdb_default_getgrnam;
 837         (*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
 838         (*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
 839         (*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
 840         (*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
 841
 842         return NT_STATUS_OK;
 843 }