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
  25 /****************************************************************
  26  parse the raw extension string into a GP_EXT structure
  27 ****************************************************************/
  28
  29 bool ads_parse_gp_ext(TALLOC_CTX *mem_ctx,
  30                       const char *extension_raw,
  31                       struct GP_EXT **gp_ext)
  32 {
  33         bool ret = false;
  34         struct GP_EXT *ext = NULL;
  35         char **ext_list = NULL;
  36         char **ext_strings = NULL;
  37         int i;
  38
  39         if (!extension_raw) {
  40                 goto parse_error;
  41         }
  42
  43         DEBUG(20,("ads_parse_gp_ext: %s\n", extension_raw));
  44
  45         ext = talloc_zero(mem_ctx, struct GP_EXT);
  46         if (!ext) {
  47                 goto parse_error;
  48         }
  49
  50         ext_list = str_list_make(mem_ctx, extension_raw, "]");
  51         if (!ext_list) {
  52                 goto parse_error;
  53         }
  54
  55         for (i = 0; ext_list[i] != NULL; i++) {
  56                 /* no op */
  57         }
  58
  59         ext->num_exts = i;
  60
  61         if (ext->num_exts) {
  62                 ext->extensions         = talloc_zero_array(mem_ctx, char *,
  63                                                             ext->num_exts);
  64                 ext->extensions_guid    = talloc_zero_array(mem_ctx, char *,
  65                                                             ext->num_exts);
  66                 ext->snapins            = talloc_zero_array(mem_ctx, char *,
  67                                                             ext->num_exts);
  68                 ext->snapins_guid       = talloc_zero_array(mem_ctx, char *,
  69                                                             ext->num_exts);
  70         }
  71
  72         ext->gp_extension = talloc_strdup(mem_ctx, extension_raw);
  73
  74         if (!ext->extensions || !ext->extensions_guid ||
  75             !ext->snapins || !ext->snapins_guid ||
  76             !ext->gp_extension) {
  77                 goto parse_error;
  78         }
  79
  80         for (i = 0; ext_list[i] != NULL; i++) {
  81
  82                 int k;
  83                 char *p, *q;
  84
  85                 DEBUGADD(10,("extension #%d\n", i));
  86
  87                 p = ext_list[i];
  88
  89                 if (p[0] == '[') {
  90                         p++;
  91                 }
  92
  93                 ext_strings = str_list_make(mem_ctx, p, "}");
  94                 if (ext_strings == NULL) {
  95                         goto parse_error;
  96                 }
  97
  98                 for (k = 0; ext_strings[k] != NULL; k++) {
  99                         /* no op */
 100                 }
 101
 102                 q = ext_strings[0];
 103
 104                 if (q[0] == '{') {
 105                         q++;
 106                 }
 107
 108                 ext->extensions[i] = talloc_strdup(mem_ctx,
 109                                            cse_gpo_guid_string_to_name(q));
 110                 ext->extensions_guid[i] = talloc_strdup(mem_ctx, q);
 111
 112                 /* we might have no name for the guid */
 113                 if (ext->extensions_guid[i] == NULL) {
 114                         goto parse_error;
 115                 }
 116
 117                 for (k = 1; ext_strings[k] != NULL; k++) {
 118
 119                         char *m = ext_strings[k];
 120
 121                         if (m[0] == '{') {
 122                                 m++;
 123                         }
 124
 125                         /* FIXME: theoretically there could be more than one
 126                          * snapin per extension */
 127                         ext->snapins[i] = talloc_strdup(mem_ctx,
 128                                 cse_snapin_gpo_guid_string_to_name(m));
 129                         ext->snapins_guid[i] = talloc_strdup(mem_ctx, m);
 130
 131                         /* we might have no name for the guid */
 132                         if (ext->snapins_guid[i] == NULL) {
 133                                 goto parse_error;
 134                         }
 135                 }
 136         }
 137
 138         *gp_ext = ext;
 139
 140         ret = true;
 141
 142  parse_error:
 143         talloc_free(ext_list);
 144         talloc_free(ext_strings);
 145
 146         return ret;
 147 }
 148
 149 #ifdef HAVE_LDAP
 150
 151 /****************************************************************
 152  parse the raw link string into a GP_LINK structure
 153 ****************************************************************/
 154
 155 static ADS_STATUS gpo_parse_gplink(TALLOC_CTX *mem_ctx,
 156                                    const char *gp_link_raw,
 157                                    uint32_t options,
 158                                    struct GP_LINK *gp_link)
 159 {
 160         ADS_STATUS status = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
 161         char **link_list;
 162         int i;
 163
 164         ZERO_STRUCTP(gp_link);
 165
 166         DEBUG(10,("gpo_parse_gplink: gPLink: %s\n", gp_link_raw));
 167
 168         link_list = str_list_make_v3(mem_ctx, gp_link_raw, "]");
 169         if (!link_list) {
 170                 goto parse_error;
 171         }
 172
 173         for (i = 0; link_list[i] != NULL; i++) {
 174                 /* no op */
 175         }
 176
 177         gp_link->gp_opts = options;
 178         gp_link->num_links = i;
 179
 180         if (gp_link->num_links) {
 181                 gp_link->link_names = talloc_zero_array(mem_ctx, char *,
 182                                                         gp_link->num_links);
 183                 gp_link->link_opts = talloc_zero_array(mem_ctx, uint32_t,
 184                                                        gp_link->num_links);
 185         }
 186
 187         gp_link->gp_link = talloc_strdup(mem_ctx, gp_link_raw);
 188
 189         if (!gp_link->link_names || !gp_link->link_opts || !gp_link->gp_link) {
 190                 goto parse_error;
 191         }
 192
 193         for (i = 0; link_list[i] != NULL; i++) {
 194
 195                 char *p, *q;
 196
 197                 DEBUGADD(10,("gpo_parse_gplink: processing link #%d\n", i));
 198
 199                 q = link_list[i];
 200                 if (q[0] == '[') {
 201                         q++;
 202                 };
 203
 204                 p = strchr(q, ';');
 205
 206                 if (p == NULL) {
 207                         goto parse_error;
 208                 }
 209
 210                 gp_link->link_names[i] = talloc_strdup(mem_ctx, q);
 211                 if (gp_link->link_names[i] == NULL) {
 212                         goto parse_error;
 213                 }
 214                 gp_link->link_names[i][PTR_DIFF(p, q)] = 0;
 215
 216                 gp_link->link_opts[i] = atoi(p + 1);
 217
 218                 DEBUGADD(10,("gpo_parse_gplink: link: %s\n",
 219                         gp_link->link_names[i]));
 220                 DEBUGADD(10,("gpo_parse_gplink: opt: %d\n",
 221                         gp_link->link_opts[i]));
 222
 223         }
 224
 225         status = ADS_SUCCESS;
 226
 227  parse_error:
 228         talloc_free(link_list);
 229
 230         return status;
 231 }
 232
 233 /****************************************************************
 234  helper call to get a GP_LINK structure from a linkdn
 235 ****************************************************************/
 236
 237 ADS_STATUS ads_get_gpo_link(ADS_STRUCT *ads,
 238                             TALLOC_CTX *mem_ctx,
 239                             const char *link_dn,
 240                             struct GP_LINK *gp_link_struct)
 241 {
 242         ADS_STATUS status;
 243         const char *attrs[] = {"gPLink", "gPOptions", NULL};
 244         LDAPMessage *res = NULL;
 245         const char *gp_link;
 246         uint32_t gp_options;
 247
 248         ZERO_STRUCTP(gp_link_struct);
 249
 250         status = ads_search_dn(ads, &res, link_dn, attrs);
 251         if (!ADS_ERR_OK(status)) {
 252                 DEBUG(10,("ads_get_gpo_link: search failed with %s\n",
 253                         ads_errstr(status)));
 254                 return status;
 255         }
 256
 257         if (ads_count_replies(ads, res) != 1) {
 258                 DEBUG(10,("ads_get_gpo_link: no result\n"));
 259                 ads_msgfree(ads, res);
 260                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 261         }
 262
 263         gp_link = ads_pull_string(ads, mem_ctx, res, "gPLink");
 264         if (gp_link == NULL) {
 265                 DEBUG(10,("ads_get_gpo_link: no 'gPLink' attribute found\n"));
 266                 ads_msgfree(ads, res);
 267                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 268         }
 269
 270         /* perfectly legal to have no options */
 271         if (!ads_pull_uint32(ads, res, "gPOptions", &gp_options)) {
 272                 DEBUG(10,("ads_get_gpo_link: "
 273                         "no 'gPOptions' attribute found\n"));
 274                 gp_options = 0;
 275         }
 276
 277         ads_msgfree(ads, res);
 278
 279         return gpo_parse_gplink(mem_ctx, gp_link, gp_options, gp_link_struct);
 280 }
 281
 282 /****************************************************************
 283  helper call to add a gp link
 284 ****************************************************************/
 285
 286 ADS_STATUS ads_add_gpo_link(ADS_STRUCT *ads,
 287                             TALLOC_CTX *mem_ctx,
 288                             const char *link_dn,
 289                             const char *gpo_dn,
 290                             uint32_t gpo_opt)
 291 {
 292         ADS_STATUS status;
 293         const char *attrs[] = {"gPLink", NULL};
 294         LDAPMessage *res = NULL;
 295         const char *gp_link, *gp_link_new;
 296         ADS_MODLIST mods;
 297
 298         /* although ADS allows one to set anything here, we better check here if
 299          * the gpo_dn is sane */
 300
 301         if (!strnequal(gpo_dn, "LDAP://CN={", strlen("LDAP://CN={")) != 0) {
 302                 return ADS_ERROR(LDAP_INVALID_DN_SYNTAX);
 303         }
 304
 305         status = ads_search_dn(ads, &res, link_dn, attrs);
 306         if (!ADS_ERR_OK(status)) {
 307                 DEBUG(10,("ads_add_gpo_link: search failed with %s\n",
 308                         ads_errstr(status)));
 309                 return status;
 310         }
 311
 312         if (ads_count_replies(ads, res) != 1) {
 313                 DEBUG(10,("ads_add_gpo_link: no result\n"));
 314                 ads_msgfree(ads, res);
 315                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 316         }
 317
 318         gp_link = ads_pull_string(ads, mem_ctx, res, "gPLink");
 319         if (gp_link == NULL) {
 320                 gp_link_new = talloc_asprintf(mem_ctx, "[%s;%d]",
 321                         gpo_dn, gpo_opt);
 322         } else {
 323                 gp_link_new = talloc_asprintf(mem_ctx, "%s[%s;%d]",
 324                         gp_link, gpo_dn, gpo_opt);
 325         }
 326
 327         ads_msgfree(ads, res);
 328         ADS_ERROR_HAVE_NO_MEMORY(gp_link_new);
 329
 330         mods = ads_init_mods(mem_ctx);
 331         ADS_ERROR_HAVE_NO_MEMORY(mods);
 332
 333         status = ads_mod_str(mem_ctx, &mods, "gPLink", gp_link_new);
 334         if (!ADS_ERR_OK(status)) {
 335                 return status;
 336         }
 337
 338         return ads_gen_mod(ads, link_dn, mods);
 339 }
 340
 341 /****************************************************************
 342  helper call to delete add a gp link
 343 ****************************************************************/
 344
 345 /* untested & broken */
 346 ADS_STATUS ads_delete_gpo_link(ADS_STRUCT *ads,
 347                                TALLOC_CTX *mem_ctx,
 348                                const char *link_dn,
 349                                const char *gpo_dn)
 350 {
 351         ADS_STATUS status;
 352         const char *attrs[] = {"gPLink", NULL};
 353         LDAPMessage *res = NULL;
 354         const char *gp_link, *gp_link_new = NULL;
 355         ADS_MODLIST mods;
 356
 357         /* check for a sane gpo_dn */
 358         if (gpo_dn[0] != '[') {
 359                 DEBUG(10,("ads_delete_gpo_link: first char not: [\n"));
 360                 return ADS_ERROR(LDAP_INVALID_DN_SYNTAX);
 361         }
 362
 363         if (gpo_dn[strlen(gpo_dn)] != ']') {
 364                 DEBUG(10,("ads_delete_gpo_link: last char not: ]\n"));
 365                 return ADS_ERROR(LDAP_INVALID_DN_SYNTAX);
 366         }
 367
 368         status = ads_search_dn(ads, &res, link_dn, attrs);
 369         if (!ADS_ERR_OK(status)) {
 370                 DEBUG(10,("ads_delete_gpo_link: search failed with %s\n",
 371                         ads_errstr(status)));
 372                 return status;
 373         }
 374
 375         if (ads_count_replies(ads, res) != 1) {
 376                 DEBUG(10,("ads_delete_gpo_link: no result\n"));
 377                 ads_msgfree(ads, res);
 378                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 379         }
 380
 381         gp_link = ads_pull_string(ads, mem_ctx, res, "gPLink");
 382         if (gp_link == NULL) {
 383                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 384         }
 385
 386         /* find link to delete */
 387         /* gp_link_new = talloc_asprintf(mem_ctx, "%s[%s;%d]", gp_link,
 388                                          gpo_dn, gpo_opt); */
 389
 390         ads_msgfree(ads, res);
 391         ADS_ERROR_HAVE_NO_MEMORY(gp_link_new);
 392
 393         mods = ads_init_mods(mem_ctx);
 394         ADS_ERROR_HAVE_NO_MEMORY(mods);
 395
 396         status = ads_mod_str(mem_ctx, &mods, "gPLink", gp_link_new);
 397         if (!ADS_ERR_OK(status)) {
 398                 return status;
 399         }
 400
 401         return ads_gen_mod(ads, link_dn, mods);
 402 }
 403
 404 /****************************************************************
 405  parse a GROUP_POLICY_OBJECT structure from an LDAPMessage result
 406 ****************************************************************/
 407
 408  ADS_STATUS ads_parse_gpo(ADS_STRUCT *ads,
 409                           TALLOC_CTX *mem_ctx,
 410                           LDAPMessage *res,
 411                           const char *gpo_dn,
 412                           struct GROUP_POLICY_OBJECT *gpo)
 413 {
 414         ZERO_STRUCTP(gpo);
 415
 416         ADS_ERROR_HAVE_NO_MEMORY(res);
 417
 418         if (gpo_dn) {
 419                 gpo->ds_path = talloc_strdup(mem_ctx, gpo_dn);
 420         } else {
 421                 gpo->ds_path = ads_get_dn(ads, mem_ctx, res);
 422         }
 423
 424         ADS_ERROR_HAVE_NO_MEMORY(gpo->ds_path);
 425
 426         if (!ads_pull_uint32(ads, res, "versionNumber", &gpo->version)) {
 427                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 428         }
 429
 430         if (!ads_pull_uint32(ads, res, "flags", &gpo->options)) {
 431                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 432         }
 433
 434         gpo->file_sys_path = ads_pull_string(ads, mem_ctx, res,
 435                 "gPCFileSysPath");
 436         if (gpo->file_sys_path == NULL) {
 437                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 438         }
 439
 440         gpo->display_name = ads_pull_string(ads, mem_ctx, res,
 441                 "displayName");
 442         if (gpo->display_name == NULL) {
 443                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 444         }
 445
 446         gpo->name = ads_pull_string(ads, mem_ctx, res,
 447                 "name");
 448         if (gpo->name == NULL) {
 449                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 450         }
 451
 452         gpo->machine_extensions = ads_pull_string(ads, mem_ctx, res,
 453                 "gPCMachineExtensionNames");
 454         gpo->user_extensions = ads_pull_string(ads, mem_ctx, res,
 455                 "gPCUserExtensionNames");
 456
 457         ads_pull_sd(ads, mem_ctx, res, "ntSecurityDescriptor",
 458                 &gpo->security_descriptor);
 459         if (gpo->security_descriptor == NULL) {
 460                 return ADS_ERROR(LDAP_NO_SUCH_ATTRIBUTE);
 461         }
 462
 463         return ADS_ERROR(LDAP_SUCCESS);
 464 }
 465
 466 /****************************************************************
 467  get a GROUP_POLICY_OBJECT structure based on different input parameters
 468 ****************************************************************/
 469
 470 ADS_STATUS ads_get_gpo(ADS_STRUCT *ads,
 471                        TALLOC_CTX *mem_ctx,
 472                        const char *gpo_dn,
 473                        const char *display_name,
 474                        const char *guid_name,
 475                        struct GROUP_POLICY_OBJECT *gpo)
 476 {
 477         ADS_STATUS status;
 478         LDAPMessage *res = NULL;
 479         char *dn;
 480         const char *filter;
 481         const char *attrs[] = {
 482                 "cn",
 483                 "displayName",
 484                 "flags",
 485                 "gPCFileSysPath",
 486                 "gPCFunctionalityVersion",
 487                 "gPCMachineExtensionNames",
 488                 "gPCUserExtensionNames",
 489                 "gPCWQLFilter",
 490                 "name",
 491                 "ntSecurityDescriptor",
 492                 "versionNumber",
 493                 NULL};
 494         uint32_t sd_flags = SECINFO_DACL;
 495
 496         ZERO_STRUCTP(gpo);
 497
 498         if (!gpo_dn && !display_name && !guid_name) {
 499                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 500         }
 501
 502         if (gpo_dn) {
 503
 504                 if (strnequal(gpo_dn, "LDAP://", strlen("LDAP://")) != 0) {
 505                         gpo_dn = gpo_dn + strlen("LDAP://");
 506                 }
 507
 508                 status = ads_search_retry_dn_sd_flags(ads, &res,
 509                                                       sd_flags,
 510                                                       gpo_dn, attrs);
 511
 512         } else if (display_name || guid_name) {
 513
 514                 filter = talloc_asprintf(mem_ctx,
 515                                  "(&(objectclass=groupPolicyContainer)(%s=%s))",
 516                                  display_name ? "displayName" : "name",
 517                                  display_name ? display_name : guid_name);
 518                 ADS_ERROR_HAVE_NO_MEMORY(filter);
 519
 520                 status = ads_do_search_all_sd_flags(ads, ads->config.bind_path,
 521                                                     LDAP_SCOPE_SUBTREE, filter,
 522                                                     attrs, sd_flags, &res);
 523         }
 524
 525         if (!ADS_ERR_OK(status)) {
 526                 DEBUG(10,("ads_get_gpo: search failed with %s\n",
 527                         ads_errstr(status)));
 528                 return status;
 529         }
 530
 531         if (ads_count_replies(ads, res) != 1) {
 532                 DEBUG(10,("ads_get_gpo: no result\n"));
 533                 ads_msgfree(ads, res);
 534                 return ADS_ERROR(LDAP_NO_SUCH_OBJECT);
 535         }
 536
 537         dn = ads_get_dn(ads, mem_ctx, res);
 538         if (dn == NULL) {
 539                 ads_msgfree(ads, res);
 540                 return ADS_ERROR(LDAP_NO_MEMORY);
 541         }
 542
 543         status = ads_parse_gpo(ads, mem_ctx, res, dn, gpo);
 544         ads_msgfree(ads, res);
 545         TALLOC_FREE(dn);
 546
 547         return status;
 548 }
 549
 550 /****************************************************************
 551  add a gplink to the GROUP_POLICY_OBJECT linked list
 552 ****************************************************************/
 553
 554 static ADS_STATUS add_gplink_to_gpo_list(ADS_STRUCT *ads,
 555                                          TALLOC_CTX *mem_ctx,
 556                                          struct GROUP_POLICY_OBJECT **gpo_list,
 557                                          const char *link_dn,
 558                                          struct GP_LINK *gp_link,
 559                                          enum GPO_LINK_TYPE link_type,
 560                                          bool only_add_forced_gpos,
 561                                          const struct security_token *token)
 562 {
 563         ADS_STATUS status;
 564         uint32_t count;
 565
 566         /*
 567          * Note: DLIST_ADD pushes to the front,
 568          * so loop from last to first to get the
 569          * order right.
 570          */
 571         for (count = gp_link->num_links; count > 0; count--) {
 572                 /* NB. Index into arrays is one less than counter. */
 573                 uint32_t i = count - 1;
 574                 struct GROUP_POLICY_OBJECT *new_gpo = NULL;
 575
 576                 if (gp_link->link_opts[i] & GPO_LINK_OPT_DISABLED) {
 577                         DEBUG(10,("skipping disabled GPO\n"));
 578                         continue;
 579                 }
 580
 581                 if (only_add_forced_gpos) {
 582
 583                         if (!(gp_link->link_opts[i] & GPO_LINK_OPT_ENFORCED)) {
 584                                 DEBUG(10,("skipping nonenforced GPO link "
 585                                         "because GPOPTIONS_BLOCK_INHERITANCE "
 586                                         "has been set\n"));
 587                                 continue;
 588                         } else {
 589                                 DEBUG(10,("adding enforced GPO link although "
 590                                         "the GPOPTIONS_BLOCK_INHERITANCE "
 591                                         "has been set\n"));
 592                         }
 593                 }
 594
 595                 new_gpo = talloc_zero(mem_ctx, struct GROUP_POLICY_OBJECT);
 596                 ADS_ERROR_HAVE_NO_MEMORY(new_gpo);
 597
 598                 status = ads_get_gpo(ads, mem_ctx, gp_link->link_names[i],
 599                                      NULL, NULL, new_gpo);
 600                 if (!ADS_ERR_OK(status)) {
 601                         DEBUG(10,("failed to get gpo: %s\n",
 602                                 gp_link->link_names[i]));
 603                         if ((status.error_type == ENUM_ADS_ERROR_LDAP) &&
 604                             (status.err.rc == LDAP_NO_SUCH_ATTRIBUTE)) {
 605                                 DEBUG(10,("skipping empty gpo: %s\n",
 606                                         gp_link->link_names[i]));
 607                                 talloc_free(new_gpo);
 608                                 continue;
 609                         }
 610                         return status;
 611                 }
 612
 613                 status = ADS_ERROR_NT(gpo_apply_security_filtering(new_gpo,
 614                                                                    token));
 615                 if (!ADS_ERR_OK(status)) {
 616                         DEBUG(10,("skipping GPO \"%s\" as object "
 617                                 "has no access to it\n",
 618                                 new_gpo->display_name));
 619                         talloc_free(new_gpo);
 620                         continue;
 621                 }
 622
 623                 new_gpo->link = link_dn;
 624                 new_gpo->link_type = link_type;
 625
 626                 DLIST_ADD(*gpo_list, new_gpo);
 627
 628                 DEBUG(10,("add_gplink_to_gplist: added GPLINK #%d %s "
 629                         "to GPO list\n", i, gp_link->link_names[i]));
 630         }
 631
 632         return ADS_ERROR(LDAP_SUCCESS);
 633 }
 634
 635 /****************************************************************
 636 ****************************************************************/
 637
 638 ADS_STATUS ads_get_sid_token(ADS_STRUCT *ads,
 639                              TALLOC_CTX *mem_ctx,
 640                              const char *dn,
 641                              struct security_token **token)
 642 {
 643         ADS_STATUS status;
 644         struct dom_sid object_sid;
 645         struct dom_sid primary_group_sid;
 646         struct dom_sid *ad_token_sids;
 647         size_t num_ad_token_sids = 0;
 648         struct dom_sid *token_sids;
 649         uint32_t num_token_sids = 0;
 650         struct security_token *new_token = NULL;
 651         int i;
 652
 653         status = ads_get_tokensids(ads, mem_ctx, dn,
 654                                    &object_sid, &primary_group_sid,
 655                                    &ad_token_sids, &num_ad_token_sids);
 656         if (!ADS_ERR_OK(status)) {
 657                 return status;
 658         }
 659
 660         token_sids = talloc_array(mem_ctx, struct dom_sid, 1);
 661         ADS_ERROR_HAVE_NO_MEMORY(token_sids);
 662
 663         status = ADS_ERROR_NT(add_sid_to_array_unique(mem_ctx,
 664                                                       &primary_group_sid,
 665                                                       &token_sids,
 666                                                       &num_token_sids));
 667         if (!ADS_ERR_OK(status)) {
 668                 return status;
 669         }
 670
 671         for (i = 0; i < num_ad_token_sids; i++) {
 672
 673                 if (sid_check_is_in_builtin(&ad_token_sids[i])) {
 674                         continue;
 675                 }
 676
 677                 status = ADS_ERROR_NT(add_sid_to_array_unique(mem_ctx,
 678                                                               &ad_token_sids[i],
 679                                                               &token_sids,
 680                                                               &num_token_sids));
 681                 if (!ADS_ERR_OK(status)) {
 682                         return status;
 683                 }
 684         }
 685
 686         new_token = create_local_nt_token(mem_ctx, &object_sid, false,
 687                                           num_token_sids, token_sids);
 688         ADS_ERROR_HAVE_NO_MEMORY(new_token);
 689
 690         *token = new_token;
 691
 692         security_token_debug(DBGC_CLASS, 5, *token);
 693
 694         return ADS_ERROR_LDAP(LDAP_SUCCESS);
 695 }
 696
 697 /****************************************************************
 698 ****************************************************************/
 699
 700 static ADS_STATUS add_local_policy_to_gpo_list(TALLOC_CTX *mem_ctx,
 701                                                struct GROUP_POLICY_OBJECT **gpo_list,
 702                                                enum GPO_LINK_TYPE link_type)
 703 {
 704         struct GROUP_POLICY_OBJECT *gpo = NULL;
 705
 706         ADS_ERROR_HAVE_NO_MEMORY(gpo_list);
 707
 708         gpo = talloc_zero(mem_ctx, struct GROUP_POLICY_OBJECT);
 709         ADS_ERROR_HAVE_NO_MEMORY(gpo);
 710
 711         gpo->name = talloc_strdup(mem_ctx, "Local Policy");
 712         ADS_ERROR_HAVE_NO_MEMORY(gpo->name);
 713
 714         gpo->display_name = talloc_strdup(mem_ctx, "Local Policy");
 715         ADS_ERROR_HAVE_NO_MEMORY(gpo->display_name);
 716
 717         gpo->link_type = link_type;
 718
 719         DLIST_ADD(*gpo_list, gpo);
 720
 721         return ADS_ERROR_NT(NT_STATUS_OK);
 722 }
 723
 724 /****************************************************************
 725  get the full list of GROUP_POLICY_OBJECTs for a given dn
 726 ****************************************************************/
 727
 728 ADS_STATUS ads_get_gpo_list(ADS_STRUCT *ads,
 729                             TALLOC_CTX *mem_ctx,
 730                             const char *dn,
 731                             uint32_t flags,
 732                             const struct security_token *token,
 733                             struct GROUP_POLICY_OBJECT **gpo_list)
 734 {
 735         /*
 736          * Push GPOs to gpo_list so that the traversal order of the list matches
 737          * the order of application:
 738          * (L)ocal (S)ite (D)omain (O)rganizational(U)nit
 739          * Within domains and OUs: parent-to-child.
 740          * Since GPOs are pushed to the front of gpo_list, GPOs have to be
 741          * pushed in the opposite order of application (OUs first, local last,
 742          * child-to-parent).
 743          */
 744
 745         ADS_STATUS status;
 746         struct GP_LINK gp_link;
 747         const char *parent_dn, *site_dn, *tmp_dn;
 748         bool add_only_forced_gpos = false;
 749
 750         ZERO_STRUCTP(gpo_list);
 751
 752         if (!dn) {
 753                 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 754         }
 755
 756         if (!ads_set_sasl_wrap_flags(ads, ADS_AUTH_SASL_SIGN)) {
 757                 return ADS_ERROR(LDAP_INVALID_CREDENTIALS);
 758         }
 759
 760         DEBUG(10,("ads_get_gpo_list: getting GPO list for [%s]\n", dn));
 761
 762         tmp_dn = dn;
 763
 764         while ((parent_dn = ads_parent_dn(tmp_dn)) &&
 765                (!strequal(parent_dn, ads_parent_dn(ads->config.bind_path)))) {
 766
 767
 768                 /* (O)rganizational(U)nit */
 769
 770                 /* An account can be a member of more OUs */
 771                 if (strncmp(parent_dn, "OU=", strlen("OU=")) == 0) {
 772
 773                         DEBUG(10,("ads_get_gpo_list: query OU: [%s] for GPOs\n",
 774                                 parent_dn));
 775
 776                         status = ads_get_gpo_link(ads, mem_ctx, parent_dn,
 777                                                   &gp_link);
 778                         if (ADS_ERR_OK(status)) {
 779
 780                                 if (DEBUGLEVEL >= 100) {
 781                                         dump_gplink(&gp_link);
 782                                 }
 783
 784                                 status = add_gplink_to_gpo_list(ads,
 785                                                         mem_ctx,
 786                                                         gpo_list,
 787                                                         parent_dn,
 788                                                         &gp_link,
 789                                                         GP_LINK_OU,
 790                                                         add_only_forced_gpos,
 791                                                         token);
 792                                 if (!ADS_ERR_OK(status)) {
 793                                         return status;
 794                                 }
 795
 796                                 /* block inheritance from now on */
 797                                 if (gp_link.gp_opts &
 798                                     GPOPTIONS_BLOCK_INHERITANCE) {
 799                                         add_only_forced_gpos = true;
 800                                 }
 801                         }
 802                 }
 803
 804                 tmp_dn = parent_dn;
 805
 806         }
 807
 808         /* reset dn again */
 809         tmp_dn = dn;
 810
 811         while ((parent_dn = ads_parent_dn(tmp_dn)) &&
 812                (!strequal(parent_dn, ads_parent_dn(ads->config.bind_path)))) {
 813
 814                 /* (D)omain */
 815
 816                 /* An account can just be a member of one domain */
 817                 if (strncmp(parent_dn, "DC=", strlen("DC=")) == 0) {
 818
 819                         DEBUG(10,("ads_get_gpo_list: query DC: [%s] for GPOs\n",
 820                                 parent_dn));
 821
 822                         status = ads_get_gpo_link(ads, mem_ctx, parent_dn,
 823                                                   &gp_link);
 824                         if (ADS_ERR_OK(status)) {
 825
 826                                 if (DEBUGLEVEL >= 100) {
 827                                         dump_gplink(&gp_link);
 828                                 }
 829
 830                                 status = add_gplink_to_gpo_list(ads,
 831                                                         mem_ctx,
 832                                                         gpo_list,
 833                                                         parent_dn,
 834                                                         &gp_link,
 835                                                         GP_LINK_DOMAIN,
 836                                                         add_only_forced_gpos,
 837                                                         token);
 838                                 if (!ADS_ERR_OK(status)) {
 839                                         return status;
 840                                 }
 841
 842                                 /* block inheritance from now on */
 843                                 if (gp_link.gp_opts &
 844                                     GPOPTIONS_BLOCK_INHERITANCE) {
 845                                         add_only_forced_gpos = true;
 846                                 }
 847                         }
 848                 }
 849
 850                 tmp_dn = parent_dn;
 851         }
 852
 853         /* (S)ite */
 854
 855         /* are site GPOs valid for users as well ??? */
 856         if (flags & GPO_LIST_FLAG_MACHINE) {
 857
 858                 status = ads_site_dn_for_machine(ads, mem_ctx,
 859                                                  ads->config.ldap_server_name,
 860                                                  &site_dn);
 861                 if (!ADS_ERR_OK(status)) {
 862                         return status;
 863                 }
 864
 865                 DEBUG(10,("ads_get_gpo_list: query SITE: [%s] for GPOs\n",
 866                         site_dn));
 867
 868                 status = ads_get_gpo_link(ads, mem_ctx, site_dn, &gp_link);
 869                 if (ADS_ERR_OK(status)) {
 870
 871                         if (DEBUGLEVEL >= 100) {
 872                                 dump_gplink(&gp_link);
 873                         }
 874
 875                         status = add_gplink_to_gpo_list(ads, mem_ctx, gpo_list,
 876                                                         site_dn, &gp_link,
 877                                                         GP_LINK_SITE,
 878                                                         add_only_forced_gpos,
 879                                                         token);
 880                         if (!ADS_ERR_OK(status)) {
 881                                 return status;
 882                         }
 883
 884                         if (flags & GPO_LIST_FLAG_SITEONLY) {
 885                                 return ADS_ERROR(LDAP_SUCCESS);
 886                         }
 887
 888                         /* inheritance can't be blocked at the site level */
 889                 }
 890         }
 891
 892         /* (L)ocal */
 893         status = add_local_policy_to_gpo_list(mem_ctx, gpo_list,
 894                                               GP_LINK_LOCAL);
 895         if (!ADS_ERR_OK(status)) {
 896                 return status;
 897         }
 898
 899         return ADS_ERROR(LDAP_SUCCESS);
 900 }
 901
 902 #endif /* HAVE_LDAP */