libgpo/gpo_ldap.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Group Policy Object Support
   4  *  Copyright (C) Guenther Deschner 2005,2007
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "includes.h"
  21 #include "libgpo/gpo.h"
  22 #include "auth.h"
  23 #include "../libcli/security/security.h"
  24 #include "lib/param/loadparm.h"
  25
  26 /****************************************************************
  27  parse the raw extension string into a GP_EXT structure
  28 ****************************************************************/
  29
  30 bool ads_parse_gp_ext(TALLOC_CTX *mem_ctx,
  31                       const char *extension_raw,
  32                       struct GP_EXT **gp_ext)
  33 {
  34         bool ret = false;
  35         struct GP_EXT *ext = NULL;
  36         char **ext_list = NULL;
  37         char **ext_strings = NULL;
  38         int i;
  39
  40         if (!extension_raw) {
  41                 goto parse_error;
  42         }
  43
  44         DEBUG(20,("ads_parse_gp_ext: %s\n", extension_raw));
  45
  46         ext = talloc_zero(mem_ctx, struct GP_EXT);
  47         if (!ext) {
  48                 goto parse_error;
  49         }
  50
  51         ext_list = str_list_make(mem_ctx, extension_raw, "]");
  52         if (!ext_list) {
  53                 goto parse_error;
  54         }
  55
  56         for (i = 0; ext_list[i] != NULL; i++) {
  57                 /* no op */
  58         }
  59
  60         ext->num_exts = i;
  61
  62         if (ext->num_exts) {
  63                 ext->extensions         = talloc_zero_array(mem_ctx, char *,
  64                                                             ext->num_exts);
  65                 ext->extensions_guid    = talloc_zero_array(mem_ctx, char *,
  66                                                             ext->num_exts);
  67                 ext->snapins            = talloc_zero_array(mem_ctx, char *,
  68                                                             ext->num_exts);
  69                 ext->snapins_guid       = talloc_zero_array(mem_ctx, char *,
  70                                                             ext->num_exts);
  71         }
  72
  73         ext->gp_extension = talloc_strdup(mem_ctx, extension_raw);
  74
  75         if (!ext->extensions || !ext->extensions_guid ||
  76             !ext->snapins || !ext->snapins_guid ||
  77             !ext->gp_extension) {
  78                 goto parse_error;
  79         }
  80
  81         for (i = 0; ext_list[i] != NULL; i++) {
  82
  83                 int k;
  84                 char *p, *q;
  85
  86                 DEBUGADD(10,("extension #%d\n", i));
  87
  88                 p = ext_list[i];
  89
  90                 if (p[0] == '[') {
  91                         p++;
  92                 }
  93
  94                 ext_strings = str_list_make(mem_ctx, p, "}");
  95                 if (ext_strings == NULL) {
  96                         goto parse_error;
  97                 }
  98
  99                 for (k = 0; ext_strings[k] != NULL; k++) {
 100                         /* no op */
 101                 }
 102
 103                 q = ext_strings[0];
 104
 105                 if (q[0] == '{') {
 106                         q++;
 107                 }
 108
 109                 ext->extensions[i] = talloc_strdup(mem_ctx,
 110                                            cse_gpo_guid_string_to_name(q));
 111                 ext->extensions_guid[i] = talloc_strdup(mem_ctx, q);
 112
 113                 /* we might have no name for the guid */
 114                 if (ext->extensions_guid[i] == NULL) {
 115                         goto parse_error;
 116                 }
 117
 118                 for (k = 1; ext_strings[k] != NULL; k++) {
 119
 120                         char *m = ext_strings[k];
 121
 122                         if (m[0] == '{') {
 123                                 m++;
 124                         }
 125
 126                         /* FIXME: theoretically there could be more than one
 127                          * snapin per extension */
 128                         ext->snapins[i] = talloc_strdup(mem_ctx,
 129                                 cse_snapin_gpo_guid_string_to_name(m));
 130                         ext->snapins_guid[i] = talloc_strdup(mem_ctx, m);
 131
 132                         /* we might have no name for the guid */
 133                         if (ext->snapins_guid[i] == NULL) {
 134                                 goto parse_error;
 135                         }
 136                 }
 137         }
 138
 139         *gp_ext = ext;
 140
 141         ret = true;
 142
 143  parse_error:
 144         talloc_free(ext_list);
 145         talloc_free(ext_strings);
 146
 147         return ret;
 148 }
 149
 150 #ifdef HAVE_LDAP
 151
 152 /****************************************************************
 153  parse the raw link string into a GP_LINK structure
 154 ****************************************************************/
 155
 156 static ADS_STATUS gpo_parse_gplink(TALLOC_CTX *mem_ctx,
 157                                    const char *gp_link_raw,
 158                                    uint32_t options,
 159                                    struct GP_LINK *gp_link)
 160 {
 161         ADS_STATUS status = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
 162         char **link_list;
 163         int i;
 164
 165         ZERO_STRUCTP(gp_link);
 166
 167         DEBUG(10,("gpo_parse_gplink: gPLink: %s\n", gp_link_raw));
 168
 169         link_list = str_list_make_v3(mem_ctx, gp_link_raw, "]");
 170         if (!link_list) {
 171                 goto parse_error;
 172         }
 173
 174         for (i = 0; link_list[i] != NULL; i++) {
 175                 /* no op */
 176         }
 177
 178         gp_link->gp_opts = options;
 179         gp_link->num_links = i;
 180
 181         if (gp_link->num_links) {
 182                 gp_link->link_names = talloc_zero_array(mem_ctx, char *,
 183                                                         gp_link->num_links);
 184                 gp_link->link_opts = talloc_zero_array(mem_ctx, uint32_t,
 185                                                        gp_link->num_links);
 186         }
 187
 188         gp_link->gp_link = talloc_strdup(mem_ctx, gp_link_raw);
 189
 190         if (!gp_link->link_names || !gp_link->link_opts || !gp_link->gp_link) {
 191                 goto parse_error;
 192         }
 193
 194         for (i = 0; link_list[i] != NULL; i++) {
 195
 196                 char *p, *q;
 197
 198                 DEBUGADD(10,("gpo_parse_gplink: processing link #%d\n", i));
 199
 200                 q = link_list[i];
 201                 if (q[0] == '[') {
 202                         q++;
 203                 };
 204
 205                 p = strchr(q, ';');
 206
 207                 if (p == NULL) {
 208                         goto parse_error;
 209                 }
 210
 211                 gp_link->link_names[i] = talloc_strdup(mem_ctx, q);
 212                 if (gp_link->link_names[i] == NULL) {
 213                         goto parse_error;
 214                 }
 215                 gp_link->link_names[i][PTR_DIFF(p, q)] = 0;
 216
 217                 gp_link->link_opts[i] = atoi(p + 1);
 218
 219                 DEBUGADD(10,("gpo_parse_gplink: link: %s\n",
 220                         gp_link->link_names[i]));
 221                 DEBUGADD(10,("gpo_parse_gplink: opt: %d\n",
 222                         gp_link->link_opts[i]));
 223
 224         }
 225
 226         status = ADS_SUCCESS;
 227
 228  parse_error:
 229         talloc_free(link_list);
 230
 231         return status;
 232 }
 233
 234 /****************************************************************
 235  helper call to get a GP_LINK structure from a linkdn
 236 ****************************************************************/
 237
 238 ADS_STATUS ads_get_gpo_link(ADS_STRUCT *ads,
 239                             TALLOC_CTX *mem_ctx,
 240                             const char *link_dn,
 241                             struct GP_LINK *gp_link_struct)
 242 {
 243         ADS_STATUS status;
 244         const char *attrs[] = {"gPLink", "gPOptions", NULL};
 245         LDAPMessage *res = NULL;
 246         const char *gp_link;
 247         uint32_t gp_options;
 248
 249         ZERO_STRUCTP(gp_link_struct);
 250
 251         status = ads_search_dn(ads, &res, link_dn, attrs);
 252         if (!ADS_ERR_OK(status)) {
 253                 DEBUG(10,("ads_get_gpo_link: search failed with %s\n",
 254                         ads_errstr(status)));
 255                 return status;
 256         }
 257
 258         if (ads_count_replies(ads, res) != 1) {
 259                 DEBUG(10,("ads_get_gpo_link: no result\n"));
 260                 ads_msgfree(ads, res);
 261                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 262         }
 263
 264         gp_link = ads_pull_string(ads, mem_ctx, res, "gPLink");
 265         if (gp_link == NULL) {
 266                 DEBUG(10,("ads_get_gpo_link: no 'gPLink' attribute found\n"));
 267                 ads_msgfree(ads, res);
 268                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 269         }
 270
 271         /* perfectly legal to have no options */
 272         if (!ads_pull_uint32(ads, res, "gPOptions", &gp_options)) {
 273                 DEBUG(10,("ads_get_gpo_link: "
 274                         "no 'gPOptions' attribute found\n"));
 275                 gp_options = 0;
 276         }
 277
 278         ads_msgfree(ads, res);
 279
 280         return gpo_parse_gplink(mem_ctx, gp_link, gp_options, gp_link_struct);
 281 }
 282
 283 /****************************************************************
 284  helper call to add a gp link
 285 ****************************************************************/
 286
 287 ADS_STATUS ads_add_gpo_link(ADS_STRUCT *ads,
 288                             TALLOC_CTX *mem_ctx,
 289                             const char *link_dn,
 290                             const char *gpo_dn,
 291                             uint32_t gpo_opt)
 292 {
 293         ADS_STATUS status;
 294         const char *attrs[] = {"gPLink", NULL};
 295         LDAPMessage *res = NULL;
 296         const char *gp_link, *gp_link_new;
 297         ADS_MODLIST mods;
 298
 299         /* although ADS allows to set anything here, we better check here if
 300          * the gpo_dn is sane */
 301
 302         if (!strnequal(gpo_dn, "LDAP://CN={", strlen("LDAP://CN={")) != 0) {
 303                 return ADS_ERROR(LDAP_INVALID_DN_SYNTAX);
 304         }
 305
 306         status = ads_search_dn(ads, &res, link_dn, attrs);
 307         if (!ADS_ERR_OK(status)) {
 308                 DEBUG(10,("ads_add_gpo_link: search failed with %s\n",
 309                         ads_errstr(status)));
 310                 return status;
 311         }
 312
 313         if (ads_count_replies(ads, res) != 1) {
 314                 DEBUG(10,("ads_add_gpo_link: no result\n"));
 315                 ads_msgfree(ads, res);
 316                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 317         }
 318
 319         gp_link = ads_pull_string(ads, mem_ctx, res, "gPLink");
 320         if (gp_link == NULL) {
 321                 gp_link_new = talloc_asprintf(mem_ctx, "[%s;%d]",
 322                         gpo_dn, gpo_opt);
 323         } else {
 324                 gp_link_new = talloc_asprintf(mem_ctx, "%s[%s;%d]",
 325                         gp_link, gpo_dn, gpo_opt);
 326         }
 327
 328         ads_msgfree(ads, res);
 329         ADS_ERROR_HAVE_NO_MEMORY(gp_link_new);
 330
 331         mods = ads_init_mods(mem_ctx);
 332         ADS_ERROR_HAVE_NO_MEMORY(mods);
 333
 334         status = ads_mod_str(mem_ctx, &mods, "gPLink", gp_link_new);
 335         if (!ADS_ERR_OK(status)) {
 336                 return status;
 337         }
 338
 339         return ads_gen_mod(ads, link_dn, mods);
 340 }
 341
 342 /****************************************************************
 343  helper call to delete add a gp link
 344 ****************************************************************/
 345
 346 /* untested & broken */
 347 ADS_STATUS ads_delete_gpo_link(ADS_STRUCT *ads,
 348                                TALLOC_CTX *mem_ctx,
 349                                const char *link_dn,
 350                                const char *gpo_dn)
 351 {
 352         ADS_STATUS status;
 353         const char *attrs[] = {"gPLink", NULL};
 354         LDAPMessage *res = NULL;
 355         const char *gp_link, *gp_link_new = NULL;
 356         ADS_MODLIST mods;
 357
 358         /* check for a sane gpo_dn */
 359         if (gpo_dn[0] != '[') {
 360                 DEBUG(10,("ads_delete_gpo_link: first char not: [\n"));
 361                 return ADS_ERROR(LDAP_INVALID_DN_SYNTAX);
 362         }
 363
 364         if (gpo_dn[strlen(gpo_dn)] != ']') {
 365                 DEBUG(10,("ads_delete_gpo_link: last char not: ]\n"));
 366                 return ADS_ERROR(LDAP_INVALID_DN_SYNTAX);
 367         }
 368
 369         status = ads_search_dn(ads, &res, link_dn, attrs);
 370         if (!ADS_ERR_OK(status)) {
 371                 DEBUG(10,("ads_delete_gpo_link: search failed with %s\n",
 372                         ads_errstr(status)));
 373                 return status;
 374         }
 375
 376         if (ads_count_replies(ads, res) != 1) {
 377                 DEBUG(10,("ads_delete_gpo_link: no result\n"));
 378                 ads_msgfree(ads, res);
 379                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 380         }
 381
 382         gp_link = ads_pull_string(ads, mem_ctx, res, "gPLink");
 383         if (gp_link == NULL) {
 384                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 385         }
 386
 387         /* find link to delete */
 388         /* gp_link_new = talloc_asprintf(mem_ctx, "%s[%s;%d]", gp_link,
 389                                          gpo_dn, gpo_opt); */
 390
 391         ads_msgfree(ads, res);
 392         ADS_ERROR_HAVE_NO_MEMORY(gp_link_new);
 393
 394         mods = ads_init_mods(mem_ctx);
 395         ADS_ERROR_HAVE_NO_MEMORY(mods);
 396
 397         status = ads_mod_str(mem_ctx, &mods, "gPLink", gp_link_new);
 398         if (!ADS_ERR_OK(status)) {
 399                 return status;
 400         }
 401
 402         return ads_gen_mod(ads, link_dn, mods);
 403 }
 404
 405 /****************************************************************
 406  parse a GROUP_POLICY_OBJECT structure from an LDAPMessage result
 407 ****************************************************************/
 408
 409  ADS_STATUS ads_parse_gpo(ADS_STRUCT *ads,
 410                           TALLOC_CTX *mem_ctx,
 411                           LDAPMessage *res,
 412                           const char *gpo_dn,
 413                           struct GROUP_POLICY_OBJECT *gpo)
 414 {
 415         ZERO_STRUCTP(gpo);
 416
 417         ADS_ERROR_HAVE_NO_MEMORY(res);
 418
 419         if (gpo_dn) {
 420                 gpo->ds_path = talloc_strdup(mem_ctx, gpo_dn);
 421         } else {
 422                 gpo->ds_path = ads_get_dn(ads, mem_ctx, res);
 423         }
 424
 425         ADS_ERROR_HAVE_NO_MEMORY(gpo->ds_path);
 426
 427         if (!ads_pull_uint32(ads, res, "versionNumber", &gpo->version)) {
 428                 return ADS_ERROR(LDAP_NO_MEMORY);
 429         }
 430
 431         if (!ads_pull_uint32(ads, res, "flags", &gpo->options)) {
 432                 return ADS_ERROR(LDAP_NO_MEMORY);
 433         }
 434
 435         gpo->file_sys_path = ads_pull_string(ads, mem_ctx, res,
 436                 "gPCFileSysPath");
 437         ADS_ERROR_HAVE_NO_MEMORY(gpo->file_sys_path);
 438
 439         gpo->display_name = ads_pull_string(ads, mem_ctx, res,
 440                 "displayName");
 441         ADS_ERROR_HAVE_NO_MEMORY(gpo->display_name);
 442
 443         gpo->name = ads_pull_string(ads, mem_ctx, res,
 444                 "name");
 445         ADS_ERROR_HAVE_NO_MEMORY(gpo->name);
 446
 447         gpo->machine_extensions = ads_pull_string(ads, mem_ctx, res,
 448                 "gPCMachineExtensionNames");
 449         gpo->user_extensions = ads_pull_string(ads, mem_ctx, res,
 450                 "gPCUserExtensionNames");
 451
 452         ads_pull_sd(ads, mem_ctx, res, "ntSecurityDescriptor",
 453                 &gpo->security_descriptor);
 454         ADS_ERROR_HAVE_NO_MEMORY(gpo->security_descriptor);
 455
 456         return ADS_ERROR(LDAP_SUCCESS);
 457 }
 458
 459 /****************************************************************
 460  get a GROUP_POLICY_OBJECT structure based on different input parameters
 461 ****************************************************************/
 462
 463 ADS_STATUS ads_get_gpo(ADS_STRUCT *ads,
 464                        TALLOC_CTX *mem_ctx,
 465                        const char *gpo_dn,
 466                        const char *display_name,
 467                        const char *guid_name,
 468                        struct GROUP_POLICY_OBJECT *gpo)
 469 {
 470         ADS_STATUS status;
 471         LDAPMessage *res = NULL;
 472         char *dn;
 473         const char *filter;
 474         const char *attrs[] = {
 475                 "cn",
 476                 "displayName",
 477                 "flags",
 478                 "gPCFileSysPath",
 479                 "gPCFunctionalityVersion",
 480                 "gPCMachineExtensionNames",
 481                 "gPCUserExtensionNames",
 482                 "gPCWQLFilter",
 483                 "name",
 484                 "ntSecurityDescriptor",
 485                 "versionNumber",
 486                 NULL};
 487         uint32_t sd_flags = SECINFO_DACL;
 488
 489         ZERO_STRUCTP(gpo);
 490
 491         if (!gpo_dn && !display_name && !guid_name) {
 492                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 493         }
 494
 495         if (gpo_dn) {
 496
 497                 if (strnequal(gpo_dn, "LDAP://", strlen("LDAP://")) != 0) {
 498                         gpo_dn = gpo_dn + strlen("LDAP://");
 499                 }
 500
 501                 status = ads_search_retry_dn_sd_flags(ads, &res,
 502                                                       sd_flags,
 503                                                       gpo_dn, attrs);
 504
 505         } else if (display_name || guid_name) {
 506
 507                 filter = talloc_asprintf(mem_ctx,
 508                                  "(&(objectclass=groupPolicyContainer)(%s=%s))",
 509                                  display_name ? "displayName" : "name",
 510                                  display_name ? display_name : guid_name);
 511                 ADS_ERROR_HAVE_NO_MEMORY(filter);
 512
 513                 status = ads_do_search_all_sd_flags(ads, ads->config.bind_path,
 514                                                     LDAP_SCOPE_SUBTREE, filter,
 515                                                     attrs, sd_flags, &res);
 516         }
 517
 518         if (!ADS_ERR_OK(status)) {
 519                 DEBUG(10,("ads_get_gpo: search failed with %s\n",
 520                         ads_errstr(status)));
 521                 return status;
 522         }
 523
 524         if (ads_count_replies(ads, res) != 1) {
 525                 DEBUG(10,("ads_get_gpo: no result\n"));
 526                 ads_msgfree(ads, res);
 527                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 528         }
 529
 530         dn = ads_get_dn(ads, mem_ctx, res);
 531         if (dn == NULL) {
 532                 ads_msgfree(ads, res);
 533                 return ADS_ERROR(LDAP_NO_MEMORY);
 534         }
 535
 536         status = ads_parse_gpo(ads, mem_ctx, res, dn, gpo);
 537         ads_msgfree(ads, res);
 538         TALLOC_FREE(dn);
 539
 540         return status;
 541 }
 542
 543 /****************************************************************
 544  add a gplink to the GROUP_POLICY_OBJECT linked list
 545 ****************************************************************/
 546
 547 static ADS_STATUS add_gplink_to_gpo_list(ADS_STRUCT *ads,
 548                                          TALLOC_CTX *mem_ctx,
 549                                          struct GROUP_POLICY_OBJECT **gpo_list,
 550                                          const char *link_dn,
 551                                          struct GP_LINK *gp_link,
 552                                          enum GPO_LINK_TYPE link_type,
 553                                          bool only_add_forced_gpos,
 554                                          const struct security_token *token)
 555 {
 556         ADS_STATUS status;
 557         int i;
 558
 559         for (i = 0; i < gp_link->num_links; i++) {
 560
 561                 struct GROUP_POLICY_OBJECT *new_gpo = NULL;
 562
 563                 if (gp_link->link_opts[i] & GPO_LINK_OPT_DISABLED) {
 564                         DEBUG(10,("skipping disabled GPO\n"));
 565                         continue;
 566                 }
 567
 568                 if (only_add_forced_gpos) {
 569
 570                         if (!(gp_link->link_opts[i] & GPO_LINK_OPT_ENFORCED)) {
 571                                 DEBUG(10,("skipping nonenforced GPO link "
 572                                         "because GPOPTIONS_BLOCK_INHERITANCE "
 573                                         "has been set\n"));
 574                                 continue;
 575                         } else {
 576                                 DEBUG(10,("adding enforced GPO link although "
 577                                         "the GPOPTIONS_BLOCK_INHERITANCE "
 578                                         "has been set\n"));
 579                         }
 580                 }
 581
 582                 new_gpo = talloc_zero(mem_ctx, struct GROUP_POLICY_OBJECT);
 583                 ADS_ERROR_HAVE_NO_MEMORY(new_gpo);
 584
 585                 status = ads_get_gpo(ads, mem_ctx, gp_link->link_names[i],
 586                                      NULL, NULL, new_gpo);
 587                 if (!ADS_ERR_OK(status)) {
 588                         DEBUG(10,("failed to get gpo: %s\n",
 589                                 gp_link->link_names[i]));
 590                         return status;
 591                 }
 592
 593                 status = ADS_ERROR_NT(gpo_apply_security_filtering(new_gpo,
 594                                                                    token));
 595                 if (!ADS_ERR_OK(status)) {
 596                         DEBUG(10,("skipping GPO \"%s\" as object "
 597                                 "has no access to it\n",
 598                                 new_gpo->display_name));
 599                         talloc_free(new_gpo);
 600                         continue;
 601                 }
 602
 603                 new_gpo->link = link_dn;
 604                 new_gpo->link_type = link_type;
 605
 606                 DLIST_ADD(*gpo_list, new_gpo);
 607
 608                 DEBUG(10,("add_gplink_to_gplist: added GPLINK #%d %s "
 609                         "to GPO list\n", i, gp_link->link_names[i]));
 610         }
 611
 612         return ADS_ERROR(LDAP_SUCCESS);
 613 }
 614
 615 /****************************************************************
 616 ****************************************************************/
 617
 618 ADS_STATUS ads_get_sid_token(ADS_STRUCT *ads,
 619                              TALLOC_CTX *mem_ctx,
 620                              const char *dn,
 621                              struct security_token **token)
 622 {
 623         ADS_STATUS status;
 624         struct dom_sid object_sid;
 625         struct dom_sid primary_group_sid;
 626         struct dom_sid *ad_token_sids;
 627         size_t num_ad_token_sids = 0;
 628         struct dom_sid *token_sids;
 629         uint32_t num_token_sids = 0;
 630         struct security_token *new_token = NULL;
 631         int i;
 632
 633         status = ads_get_tokensids(ads, mem_ctx, dn,
 634                                    &object_sid, &primary_group_sid,
 635                                    &ad_token_sids, &num_ad_token_sids);
 636         if (!ADS_ERR_OK(status)) {
 637                 return status;
 638         }
 639
 640         token_sids = talloc_array(mem_ctx, struct dom_sid, 1);
 641         ADS_ERROR_HAVE_NO_MEMORY(token_sids);
 642
 643         status = ADS_ERROR_NT(add_sid_to_array_unique(mem_ctx,
 644                                                       &primary_group_sid,
 645                                                       &token_sids,
 646                                                       &num_token_sids));
 647         if (!ADS_ERR_OK(status)) {
 648                 return status;
 649         }
 650
 651         for (i = 0; i < num_ad_token_sids; i++) {
 652
 653                 if (sid_check_is_in_builtin(&ad_token_sids[i])) {
 654                         continue;
 655                 }
 656
 657                 status = ADS_ERROR_NT(add_sid_to_array_unique(mem_ctx,
 658                                                               &ad_token_sids[i],
 659                                                               &token_sids,
 660                                                               &num_token_sids));
 661                 if (!ADS_ERR_OK(status)) {
 662                         return status;
 663                 }
 664         }
 665
 666         new_token = create_local_nt_token(mem_ctx, &object_sid, false,
 667                                           num_token_sids, token_sids);
 668         ADS_ERROR_HAVE_NO_MEMORY(new_token);
 669
 670         *token = new_token;
 671
 672         security_token_debug(DBGC_CLASS, 5, *token);
 673
 674         return ADS_ERROR_LDAP(LDAP_SUCCESS);
 675 }
 676
 677 /****************************************************************
 678 ****************************************************************/
 679
 680 static ADS_STATUS add_local_policy_to_gpo_list(TALLOC_CTX *mem_ctx,
 681                                                struct GROUP_POLICY_OBJECT **gpo_list,
 682                                                enum GPO_LINK_TYPE link_type)
 683 {
 684         struct GROUP_POLICY_OBJECT *gpo = NULL;
 685
 686         ADS_ERROR_HAVE_NO_MEMORY(gpo_list);
 687
 688         gpo = talloc_zero(mem_ctx, struct GROUP_POLICY_OBJECT);
 689         ADS_ERROR_HAVE_NO_MEMORY(gpo);
 690
 691         gpo->name = talloc_strdup(mem_ctx, "Local Policy");
 692         ADS_ERROR_HAVE_NO_MEMORY(gpo->name);
 693
 694         gpo->display_name = talloc_strdup(mem_ctx, "Local Policy");
 695         ADS_ERROR_HAVE_NO_MEMORY(gpo->display_name);
 696
 697         gpo->link_type = link_type;
 698
 699         DLIST_ADD(*gpo_list, gpo);
 700
 701         return ADS_ERROR_NT(NT_STATUS_OK);
 702 }
 703
 704 /****************************************************************
 705  get the full list of GROUP_POLICY_OBJECTs for a given dn
 706 ****************************************************************/
 707
 708 ADS_STATUS ads_get_gpo_list(ADS_STRUCT *ads,
 709                             TALLOC_CTX *mem_ctx,
 710                             const char *dn,
 711                             uint32_t flags,
 712                             const struct security_token *token,
 713                             struct GROUP_POLICY_OBJECT **gpo_list)
 714 {
 715         /* (L)ocal (S)ite (D)omain (O)rganizational(U)nit */
 716
 717         ADS_STATUS status;
 718         struct GP_LINK gp_link;
 719         const char *parent_dn, *site_dn, *tmp_dn;
 720         bool add_only_forced_gpos = false;
 721
 722         ZERO_STRUCTP(gpo_list);
 723
 724         if (!dn) {
 725                 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 726         }
 727
 728         if (!ads_set_sasl_wrap_flags(ads, ADS_AUTH_SASL_SIGN)) {
 729                 return ADS_ERROR(LDAP_INVALID_CREDENTIALS);
 730         }
 731
 732         DEBUG(10,("ads_get_gpo_list: getting GPO list for [%s]\n", dn));
 733
 734         /* (L)ocal */
 735         status = add_local_policy_to_gpo_list(mem_ctx, gpo_list,
 736                                               GP_LINK_LOCAL);
 737         if (!ADS_ERR_OK(status)) {
 738                 return status;
 739         }
 740
 741         /* (S)ite */
 742
 743         /* are site GPOs valid for users as well ??? */
 744         if (flags & GPO_LIST_FLAG_MACHINE) {
 745
 746                 status = ads_site_dn_for_machine(ads, mem_ctx,
 747                                                  ads->config.ldap_server_name,
 748                                                  &site_dn);
 749                 if (!ADS_ERR_OK(status)) {
 750                         return status;
 751                 }
 752
 753                 DEBUG(10,("ads_get_gpo_list: query SITE: [%s] for GPOs\n",
 754                         site_dn));
 755
 756                 status = ads_get_gpo_link(ads, mem_ctx, site_dn, &gp_link);
 757                 if (ADS_ERR_OK(status)) {
 758
 759                         if (DEBUGLEVEL >= 100) {
 760                                 dump_gplink(ads, mem_ctx, &gp_link);
 761                         }
 762
 763                         status = add_gplink_to_gpo_list(ads, mem_ctx, gpo_list,
 764                                                         site_dn, &gp_link,
 765                                                         GP_LINK_SITE,
 766                                                         add_only_forced_gpos,
 767                                                         token);
 768                         if (!ADS_ERR_OK(status)) {
 769                                 return status;
 770                         }
 771
 772                         if (flags & GPO_LIST_FLAG_SITEONLY) {
 773                                 return ADS_ERROR(LDAP_SUCCESS);
 774                         }
 775
 776                         /* inheritance can't be blocked at the site level */
 777                 }
 778         }
 779
 780         tmp_dn = dn;
 781
 782         while ((parent_dn = ads_parent_dn(tmp_dn)) &&
 783                (!strequal(parent_dn, ads_parent_dn(ads->config.bind_path)))) {
 784
 785                 /* (D)omain */
 786
 787                 /* An account can just be a member of one domain */
 788                 if (strncmp(parent_dn, "DC=", strlen("DC=")) == 0) {
 789
 790                         DEBUG(10,("ads_get_gpo_list: query DC: [%s] for GPOs\n",
 791                                 parent_dn));
 792
 793                         status = ads_get_gpo_link(ads, mem_ctx, parent_dn,
 794                                                   &gp_link);
 795                         if (ADS_ERR_OK(status)) {
 796
 797                                 if (DEBUGLEVEL >= 100) {
 798                                         dump_gplink(ads, mem_ctx, &gp_link);
 799                                 }
 800
 801                                 /* block inheritance from now on */
 802                                 if (gp_link.gp_opts &
 803                                     GPOPTIONS_BLOCK_INHERITANCE) {
 804                                         add_only_forced_gpos = true;
 805                                 }
 806
 807                                 status = add_gplink_to_gpo_list(ads,
 808                                                         mem_ctx,
 809                                                         gpo_list,
 810                                                         parent_dn,
 811                                                         &gp_link,
 812                                                         GP_LINK_DOMAIN,
 813                                                         add_only_forced_gpos,
 814                                                         token);
 815                                 if (!ADS_ERR_OK(status)) {
 816                                         return status;
 817                                 }
 818                         }
 819                 }
 820
 821                 tmp_dn = parent_dn;
 822         }
 823
 824         /* reset dn again */
 825         tmp_dn = dn;
 826
 827         while ((parent_dn = ads_parent_dn(tmp_dn)) &&
 828                (!strequal(parent_dn, ads_parent_dn(ads->config.bind_path)))) {
 829
 830
 831                 /* (O)rganizational(U)nit */
 832
 833                 /* An account can be a member of more OUs */
 834                 if (strncmp(parent_dn, "OU=", strlen("OU=")) == 0) {
 835
 836                         DEBUG(10,("ads_get_gpo_list: query OU: [%s] for GPOs\n",
 837                                 parent_dn));
 838
 839                         status = ads_get_gpo_link(ads, mem_ctx, parent_dn,
 840                                                   &gp_link);
 841                         if (ADS_ERR_OK(status)) {
 842
 843                                 if (DEBUGLEVEL >= 100) {
 844                                         dump_gplink(ads, mem_ctx, &gp_link);
 845                                 }
 846
 847                                 /* block inheritance from now on */
 848                                 if (gp_link.gp_opts &
 849                                     GPOPTIONS_BLOCK_INHERITANCE) {
 850                                         add_only_forced_gpos = true;
 851                                 }
 852
 853                                 status = add_gplink_to_gpo_list(ads,
 854                                                         mem_ctx,
 855                                                         gpo_list,
 856                                                         parent_dn,
 857                                                         &gp_link,
 858                                                         GP_LINK_OU,
 859                                                         add_only_forced_gpos,
 860                                                         token);
 861                                 if (!ADS_ERR_OK(status)) {
 862                                         return status;
 863                                 }
 864                         }
 865                 }
 866
 867                 tmp_dn = parent_dn;
 868
 869         };
 870
 871         return ADS_ERROR(LDAP_SUCCESS);
 872 }
 873
 874 #endif /* HAVE_LDAP */