libgpo/gpo_util.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Group Policy Object Support
   4  *  Copyright (C) Guenther Deschner 2005-2008
   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 "system/filesys.h"
  22 #include "librpc/gen_ndr/ndr_misc.h"
  23 #include "../librpc/gen_ndr/ndr_security.h"
  24 #include "../libgpo/gpo.h"
  25 #include "../libcli/security/security.h"
  26 #include "registry.h"
  27 #include "libgpo/gpo_proto.h"
  28
  29 #if 0
  30 #define DEFAULT_DOMAIN_POLICY "Default Domain Policy"
  31 #define DEFAULT_DOMAIN_CONTROLLERS_POLICY "Default Domain Controllers Policy"
  32 #endif
  33
  34 /* should we store a parsed guid ? */
  35 struct gp_table {
  36         const char *name;
  37         const char *guid_string;
  38 };
  39
  40 #if 0 /* unused */
  41 static struct gp_table gpo_default_policy[] = {
  42         { DEFAULT_DOMAIN_POLICY,
  43                 "31B2F340-016D-11D2-945F-00C04FB984F9" },
  44         { DEFAULT_DOMAIN_CONTROLLERS_POLICY,
  45                 "6AC1786C-016F-11D2-945F-00C04fB984F9" },
  46         { NULL, NULL }
  47 };
  48 #endif
  49
  50 /* the following is seen in gPCMachineExtensionNames / gPCUserExtensionNames */
  51
  52 static struct gp_table gpo_cse_extensions[] = {
  53         /* used to be "Administrative Templates Extension" */
  54         /* "Registry Settings"
  55         (http://support.microsoft.com/kb/216357/EN-US/) */
  56         { "Registry Settings",
  57                 GP_EXT_GUID_REGISTRY },
  58         { "Microsoft Disc Quota",
  59                 "3610EDA5-77EF-11D2-8DC5-00C04FA31A66" },
  60         { "EFS recovery",
  61                 "B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
  62         { "Folder Redirection",
  63                 "25537BA6-77A8-11D2-9B6C-0000F8080861" },
  64         { "IP Security",
  65                 "E437BC1C-AA7D-11D2-A382-00C04F991E27" },
  66         { "Internet Explorer Branding",
  67                 "A2E30F80-D7DE-11d2-BBDE-00C04F86AE3B" },
  68         { "QoS Packet Scheduler",
  69                 "426031c0-0b47-4852-b0ca-ac3d37bfcb39" },
  70         { "Scripts",
  71                 GP_EXT_GUID_SCRIPTS },
  72         { "Security",
  73                 GP_EXT_GUID_SECURITY },
  74         { "Software Installation",
  75                 "C6DC5466-785A-11D2-84D0-00C04FB169F7" },
  76         { "Wireless Group Policy",
  77                 "0ACDD40C-75AC-BAA0-BF6DE7E7FE63" },
  78         { "Application Management",
  79                 "C6DC5466-785A-11D2-84D0-00C04FB169F7" },
  80         { "unknown",
  81                 "3060E8D0-7020-11D2-842D-00C04FA372D4" },
  82         { NULL, NULL }
  83 };
  84
  85 /* guess work */
  86 static struct gp_table gpo_cse_snapin_extensions[] = {
  87         { "Administrative Templates",
  88                 "0F6B957D-509E-11D1-A7CC-0000F87571E3" },
  89         { "Certificates",
  90                 "53D6AB1D-2488-11D1-A28C-00C04FB94F17" },
  91         { "EFS recovery policy processing",
  92                 "B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
  93         { "Folder Redirection policy processing",
  94                 "25537BA6-77A8-11D2-9B6C-0000F8080861" },
  95         { "Folder Redirection",
  96                 "88E729D6-BDC1-11D1-BD2A-00C04FB9603F" },
  97         { "Registry policy processing",
  98                 "35378EAC-683F-11D2-A89A-00C04FBBCFA2" },
  99         { "Remote Installation Services",
 100                 "3060E8CE-7020-11D2-842D-00C04FA372D4" },
 101         { "Security Settings",
 102                 "803E14A0-B4FB-11D0-A0D0-00A0C90F574B" },
 103         { "Security policy processing",
 104                 "827D319E-6EAC-11D2-A4EA-00C04F79F83A" },
 105         { "unknown",
 106                 "3060E8D0-7020-11D2-842D-00C04FA372D4" },
 107         { "unknown2",
 108                 "53D6AB1B-2488-11D1-A28C-00C04FB94F17" },
 109         { NULL, NULL }
 110 };
 111
 112 /****************************************************************
 113 ****************************************************************/
 114
 115 static const char *name_to_guid_string(const char *name,
 116                                        struct gp_table *table)
 117 {
 118         int i;
 119
 120         for (i = 0; table[i].name; i++) {
 121                 if (strequal(name, table[i].name)) {
 122                         return table[i].guid_string;
 123                 }
 124         }
 125
 126         return NULL;
 127 }
 128
 129 /****************************************************************
 130 ****************************************************************/
 131
 132 static const char *guid_string_to_name(const char *guid_string,
 133                                        struct gp_table *table)
 134 {
 135         int i;
 136
 137         for (i = 0; table[i].guid_string; i++) {
 138                 if (strequal(guid_string, table[i].guid_string)) {
 139                         return table[i].name;
 140                 }
 141         }
 142
 143         return NULL;
 144 }
 145
 146 /****************************************************************
 147 ****************************************************************/
 148
 149 static const char *snapin_guid_string_to_name(const char *guid_string,
 150                                               struct gp_table *table)
 151 {
 152         int i;
 153         for (i = 0; table[i].guid_string; i++) {
 154                 if (strequal(guid_string, table[i].guid_string)) {
 155                         return table[i].name;
 156                 }
 157         }
 158         return NULL;
 159 }
 160
 161 #if 0 /* unused */
 162 static const char *default_gpo_name_to_guid_string(const char *name)
 163 {
 164         return name_to_guid_string(name, gpo_default_policy);
 165 }
 166
 167 static const char *default_gpo_guid_string_to_name(const char *guid)
 168 {
 169         return guid_string_to_name(guid, gpo_default_policy);
 170 }
 171 #endif
 172
 173 /****************************************************************
 174 ****************************************************************/
 175
 176 const char *cse_gpo_guid_string_to_name(const char *guid)
 177 {
 178         return guid_string_to_name(guid, gpo_cse_extensions);
 179 }
 180
 181 /****************************************************************
 182 ****************************************************************/
 183
 184 const char *cse_gpo_name_to_guid_string(const char *name)
 185 {
 186         return name_to_guid_string(name, gpo_cse_extensions);
 187 }
 188
 189 /****************************************************************
 190 ****************************************************************/
 191
 192 const char *cse_snapin_gpo_guid_string_to_name(const char *guid)
 193 {
 194         return snapin_guid_string_to_name(guid, gpo_cse_snapin_extensions);
 195 }
 196
 197 /****************************************************************
 198 ****************************************************************/
 199
 200 void dump_gp_ext(struct GP_EXT *gp_ext, int debuglevel)
 201 {
 202         int lvl = debuglevel;
 203         int i;
 204
 205         if (gp_ext == NULL) {
 206                 return;
 207         }
 208
 209         DEBUG(lvl,("\t---------------------\n\n"));
 210         DEBUGADD(lvl,("\tname:\t\t\t%s\n", gp_ext->gp_extension));
 211
 212         for (i=0; i< gp_ext->num_exts; i++) {
 213
 214                 DEBUGADD(lvl,("\textension:\t\t\t%s\n",
 215                         gp_ext->extensions_guid[i]));
 216                 DEBUGADD(lvl,("\textension (name):\t\t\t%s\n",
 217                         gp_ext->extensions[i]));
 218
 219                 DEBUGADD(lvl,("\tsnapin:\t\t\t%s\n",
 220                         gp_ext->snapins_guid[i]));
 221                 DEBUGADD(lvl,("\tsnapin (name):\t\t\t%s\n",
 222                         gp_ext->snapins[i]));
 223         }
 224 }
 225
 226 #ifdef HAVE_LDAP
 227
 228 /****************************************************************
 229 ****************************************************************/
 230
 231 void dump_gpo(const struct GROUP_POLICY_OBJECT *gpo,
 232               int debuglevel)
 233 {
 234         int lvl = debuglevel;
 235         TALLOC_CTX *frame = talloc_stackframe();
 236
 237         if (gpo == NULL) {
 238                 goto out;
 239         }
 240
 241         DEBUG(lvl,("---------------------\n\n"));
 242
 243         DEBUGADD(lvl,("name:\t\t\t%s\n", gpo->name));
 244         DEBUGADD(lvl,("displayname:\t\t%s\n", gpo->display_name));
 245         DEBUGADD(lvl,("version:\t\t%d (0x%08x)\n", gpo->version, gpo->version));
 246         DEBUGADD(lvl,("version_user:\t\t%d (0x%04x)\n",
 247                 GPO_VERSION_USER(gpo->version),
 248                 GPO_VERSION_USER(gpo->version)));
 249         DEBUGADD(lvl,("version_machine:\t%d (0x%04x)\n",
 250                 GPO_VERSION_MACHINE(gpo->version),
 251                  GPO_VERSION_MACHINE(gpo->version)));
 252         DEBUGADD(lvl,("filesyspath:\t\t%s\n", gpo->file_sys_path));
 253         DEBUGADD(lvl,("dspath:\t\t%s\n", gpo->ds_path));
 254
 255         DEBUGADD(lvl,("options:\t\t%d ", gpo->options));
 256         switch (gpo->options) {
 257                 case GPFLAGS_ALL_ENABLED:
 258                         DEBUGADD(lvl,("GPFLAGS_ALL_ENABLED\n"));
 259                         break;
 260                 case GPFLAGS_USER_SETTINGS_DISABLED:
 261                         DEBUGADD(lvl,("GPFLAGS_USER_SETTINGS_DISABLED\n"));
 262                         break;
 263                 case GPFLAGS_MACHINE_SETTINGS_DISABLED:
 264                         DEBUGADD(lvl,("GPFLAGS_MACHINE_SETTINGS_DISABLED\n"));
 265                         break;
 266                 case GPFLAGS_ALL_DISABLED:
 267                         DEBUGADD(lvl,("GPFLAGS_ALL_DISABLED\n"));
 268                         break;
 269                 default:
 270                         DEBUGADD(lvl,("unknown option: %d\n", gpo->options));
 271                         break;
 272         }
 273
 274         DEBUGADD(lvl,("link:\t\t\t%s\n", gpo->link));
 275         DEBUGADD(lvl,("link_type:\t\t%d ", gpo->link_type));
 276         switch (gpo->link_type) {
 277                 case GP_LINK_UNKOWN:
 278                         DEBUGADD(lvl,("GP_LINK_UNKOWN\n"));
 279                         break;
 280                 case GP_LINK_OU:
 281                         DEBUGADD(lvl,("GP_LINK_OU\n"));
 282                         break;
 283                 case GP_LINK_DOMAIN:
 284                         DEBUGADD(lvl,("GP_LINK_DOMAIN\n"));
 285                         break;
 286                 case GP_LINK_SITE:
 287                         DEBUGADD(lvl,("GP_LINK_SITE\n"));
 288                         break;
 289                 case GP_LINK_MACHINE:
 290                         DEBUGADD(lvl,("GP_LINK_MACHINE\n"));
 291                         break;
 292                 default:
 293                         break;
 294         }
 295
 296         DEBUGADD(lvl,("machine_extensions:\t%s\n", gpo->machine_extensions));
 297
 298         if (gpo->machine_extensions) {
 299
 300                 struct GP_EXT *gp_ext = NULL;
 301
 302                 if (!ads_parse_gp_ext(frame, gpo->machine_extensions,
 303                                       &gp_ext)) {
 304                         goto out;
 305                 }
 306                 dump_gp_ext(gp_ext, lvl);
 307         }
 308
 309         DEBUGADD(lvl,("user_extensions:\t%s\n", gpo->user_extensions));
 310
 311         if (gpo->user_extensions) {
 312
 313                 struct GP_EXT *gp_ext = NULL;
 314
 315                 if (!ads_parse_gp_ext(frame, gpo->user_extensions,
 316                                       &gp_ext)) {
 317                         goto out;
 318                 }
 319                 dump_gp_ext(gp_ext, lvl);
 320         }
 321         if (gpo->security_descriptor) {
 322                 DEBUGADD(lvl,("security descriptor:\n"));
 323
 324                 NDR_PRINT_DEBUG(security_descriptor, gpo->security_descriptor);
 325         }
 326  out:
 327         talloc_free(frame);
 328 }
 329
 330 /****************************************************************
 331 ****************************************************************/
 332
 333 void dump_gpo_list(const struct GROUP_POLICY_OBJECT *gpo_list,
 334                    int debuglevel)
 335 {
 336         const struct GROUP_POLICY_OBJECT *gpo = NULL;
 337
 338         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 339                 dump_gpo(gpo, debuglevel);
 340         }
 341 }
 342
 343 /****************************************************************
 344 ****************************************************************/
 345
 346 void dump_gplink(const struct GP_LINK *gp_link)
 347 {
 348         int i;
 349         int lvl = 10;
 350
 351         if (gp_link == NULL) {
 352                 return;
 353         }
 354
 355         DEBUG(lvl,("---------------------\n\n"));
 356
 357         DEBUGADD(lvl,("gplink: %s\n", gp_link->gp_link));
 358         DEBUGADD(lvl,("gpopts: %d ", gp_link->gp_opts));
 359         switch (gp_link->gp_opts) {
 360                 case GPOPTIONS_INHERIT:
 361                         DEBUGADD(lvl,("GPOPTIONS_INHERIT\n"));
 362                         break;
 363                 case GPOPTIONS_BLOCK_INHERITANCE:
 364                         DEBUGADD(lvl,("GPOPTIONS_BLOCK_INHERITANCE\n"));
 365                         break;
 366                 default:
 367                         break;
 368         }
 369
 370         DEBUGADD(lvl,("num links: %d\n", gp_link->num_links));
 371
 372         for (i = 0; i < gp_link->num_links; i++) {
 373
 374                 DEBUGADD(lvl,("---------------------\n\n"));
 375
 376                 DEBUGADD(lvl,("link: #%d\n", i + 1));
 377                 DEBUGADD(lvl,("name: %s\n", gp_link->link_names[i]));
 378
 379                 DEBUGADD(lvl,("opt: %d ", gp_link->link_opts[i]));
 380                 if (gp_link->link_opts[i] & GPO_LINK_OPT_ENFORCED) {
 381                         DEBUGADD(lvl,("GPO_LINK_OPT_ENFORCED "));
 382                 }
 383                 if (gp_link->link_opts[i] & GPO_LINK_OPT_DISABLED) {
 384                         DEBUGADD(lvl,("GPO_LINK_OPT_DISABLED"));
 385                 }
 386                 DEBUGADD(lvl,("\n"));
 387         }
 388 }
 389
 390 #endif /* HAVE_LDAP */
 391
 392 /****************************************************************
 393 ****************************************************************/
 394
 395 bool gpo_get_gp_ext_from_gpo(TALLOC_CTX *mem_ctx,
 396                              uint32_t flags,
 397                              const struct GROUP_POLICY_OBJECT *gpo,
 398                              struct GP_EXT **gp_ext)
 399 {
 400         ZERO_STRUCTP(*gp_ext);
 401
 402         if (flags & GPO_INFO_FLAG_MACHINE) {
 403
 404                 if (gpo->machine_extensions) {
 405
 406                         if (!ads_parse_gp_ext(mem_ctx, gpo->machine_extensions,
 407                                               gp_ext)) {
 408                                 return false;
 409                         }
 410                 }
 411         } else {
 412
 413                 if (gpo->user_extensions) {
 414
 415                         if (!ads_parse_gp_ext(mem_ctx, gpo->user_extensions,
 416                                               gp_ext)) {
 417                                 return false;
 418                         }
 419                 }
 420         }
 421
 422         return true;
 423 }
 424
 425 /****************************************************************
 426 ****************************************************************/
 427
 428 NTSTATUS gpo_process_gpo_list(TALLOC_CTX *mem_ctx,
 429                               const struct security_token *token,
 430                               const struct GROUP_POLICY_OBJECT *deleted_gpo_list,
 431                               const struct GROUP_POLICY_OBJECT *changed_gpo_list,
 432                               const char *extensions_guid_filter,
 433                               uint32_t flags)
 434 {
 435         NTSTATUS status = NT_STATUS_OK;
 436         struct registry_key *root_key = NULL;
 437         struct gp_registry_context *reg_ctx = NULL;
 438         WERROR werr;
 439
 440         /* get the key here */
 441         if (flags & GPO_LIST_FLAG_MACHINE) {
 442                 werr = gp_init_reg_ctx(mem_ctx, KEY_HKLM, REG_KEY_WRITE,
 443                                        get_system_token(),
 444                                        &reg_ctx);
 445         } else {
 446                 werr = gp_init_reg_ctx(mem_ctx, KEY_HKCU, REG_KEY_WRITE,
 447                                        token,
 448                                        &reg_ctx);
 449         }
 450         if (!W_ERROR_IS_OK(werr)) {
 451                 talloc_free(reg_ctx);
 452                 return werror_to_ntstatus(werr);
 453         }
 454
 455         root_key = reg_ctx->curr_key;
 456
 457         status = gpext_process_extension(mem_ctx,
 458                                          flags, token, root_key,
 459                                          deleted_gpo_list,
 460                                          changed_gpo_list,
 461                                          extensions_guid_filter);
 462         talloc_free(reg_ctx);
 463         talloc_free(root_key);
 464         gpext_free_gp_extensions();
 465
 466         return status;
 467 }
 468
 469
 470 /****************************************************************
 471  check wether the version number in a GROUP_POLICY_OBJECT match those of the
 472  locally stored version. If not, fetch the required policy via CIFS
 473 ****************************************************************/
 474
 475 NTSTATUS check_refresh_gpo(ADS_STRUCT *ads,
 476                            TALLOC_CTX *mem_ctx,
 477                            const char *cache_dir,
 478                            uint32_t flags,
 479                            struct GROUP_POLICY_OBJECT *gpo)
 480 {
 481         NTSTATUS result;
 482         char *server = NULL;
 483         char *share = NULL;
 484         char *nt_path = NULL;
 485         char *unix_path = NULL;
 486         uint32_t sysvol_gpt_version = 0;
 487         char *display_name = NULL;
 488
 489         result = gpo_explode_filesyspath(mem_ctx, cache_dir, gpo->file_sys_path,
 490                                          &server, &share, &nt_path, &unix_path);
 491
 492         if (!NT_STATUS_IS_OK(result)) {
 493                 goto out;
 494         }
 495
 496         result = gpo_get_sysvol_gpt_version(mem_ctx,
 497                                             unix_path,
 498                                             &sysvol_gpt_version,
 499                                             &display_name);
 500         if (!NT_STATUS_IS_OK(result) &&
 501             !NT_STATUS_EQUAL(result, NT_STATUS_NO_SUCH_FILE)) {
 502                 DEBUG(10,("check_refresh_gpo: "
 503                         "failed to get local gpt version: %s\n",
 504                         nt_errstr(result)));
 505                 goto out;
 506         }
 507
 508         DEBUG(10,("check_refresh_gpo: versions gpo %d sysvol %d\n",
 509                 gpo->version, sysvol_gpt_version));
 510
 511         /* FIXME: handle GPO_INFO_FLAG_FORCED_REFRESH from flags */
 512
 513         while (gpo->version > sysvol_gpt_version) {
 514
 515                 DEBUG(1,("check_refresh_gpo: need to refresh GPO\n"));
 516
 517                 result = gpo_fetch_files(mem_ctx, ads, cache_dir, gpo);
 518                 if (!NT_STATUS_IS_OK(result)) {
 519                         goto out;
 520                 }
 521
 522                 result = gpo_get_sysvol_gpt_version(mem_ctx,
 523                                                     unix_path,
 524                                                     &sysvol_gpt_version,
 525                                                     &display_name);
 526                 if (!NT_STATUS_IS_OK(result)) {
 527                         DEBUG(10,("check_refresh_gpo: "
 528                                 "failed to get local gpt version: %s\n",
 529                                 nt_errstr(result)));
 530                         goto out;
 531                 }
 532
 533                 if (gpo->version == sysvol_gpt_version) {
 534                         break;
 535                 }
 536         }
 537
 538         DEBUG(10,("Name:\t\t\t%s (%s)\n", gpo->display_name, gpo->name));
 539         DEBUGADD(10,("sysvol GPT version:\t%d (user: %d, machine: %d)\n",
 540                 sysvol_gpt_version,
 541                 GPO_VERSION_USER(sysvol_gpt_version),
 542                 GPO_VERSION_MACHINE(sysvol_gpt_version)));
 543         DEBUGADD(10,("LDAP GPO version:\t%d (user: %d, machine: %d)\n",
 544                 gpo->version,
 545                 GPO_VERSION_USER(gpo->version),
 546                 GPO_VERSION_MACHINE(gpo->version)));
 547         DEBUGADD(10,("LDAP GPO link:\t\t%s\n", gpo->link));
 548
 549         result = NT_STATUS_OK;
 550
 551  out:
 552         return result;
 553
 554 }
 555
 556 /****************************************************************
 557  check wether the version numbers in the gpo_list match the locally stored, if
 558  not, go and get each required GPO via CIFS
 559  ****************************************************************/
 560
 561 NTSTATUS check_refresh_gpo_list(ADS_STRUCT *ads,
 562                                 TALLOC_CTX *mem_ctx,
 563                                 const char *cache_dir,
 564                                 uint32_t flags,
 565                                 struct GROUP_POLICY_OBJECT *gpo_list)
 566 {
 567         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 568         struct GROUP_POLICY_OBJECT *gpo;
 569
 570         if (!gpo_list) {
 571                 return NT_STATUS_INVALID_PARAMETER;
 572         }
 573
 574         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 575
 576                 result = check_refresh_gpo(ads, mem_ctx, cache_dir, flags, gpo);
 577                 if (!NT_STATUS_IS_OK(result)) {
 578                         goto out;
 579                 }
 580         }
 581
 582         result = NT_STATUS_OK;
 583
 584  out:
 585         /* FIXME close cli connection */
 586
 587         return result;
 588 }
 589
 590 /****************************************************************
 591 ****************************************************************/
 592
 593 NTSTATUS gpo_get_unix_path(TALLOC_CTX *mem_ctx,
 594                            const char *cache_dir,
 595                            struct GROUP_POLICY_OBJECT *gpo,
 596                            char **unix_path)
 597 {
 598         char *server, *share, *nt_path;
 599         return gpo_explode_filesyspath(mem_ctx, cache_dir, gpo->file_sys_path,
 600                                        &server, &share, &nt_path, unix_path);
 601 }
 602
 603 /****************************************************************
 604 ****************************************************************/
 605
 606 char *gpo_flag_str(TALLOC_CTX *ctx, uint32_t flags)
 607 {
 608         char *str = NULL;
 609
 610         if (flags == 0) {
 611                 return NULL;
 612         }
 613
 614         str = talloc_strdup(ctx, "");
 615         if (!str) {
 616                 return NULL;
 617         }
 618
 619         if (flags & GPO_INFO_FLAG_SLOWLINK)
 620                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_SLOWLINK ");
 621         if (flags & GPO_INFO_FLAG_VERBOSE)
 622                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_VERBOSE ");
 623         if (flags & GPO_INFO_FLAG_SAFEMODE_BOOT)
 624                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_SAFEMODE_BOOT ");
 625         if (flags & GPO_INFO_FLAG_NOCHANGES)
 626                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_NOCHANGES ");
 627         if (flags & GPO_INFO_FLAG_MACHINE)
 628                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_MACHINE ");
 629         if (flags & GPO_INFO_FLAG_LOGRSOP_TRANSITION)
 630                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_LOGRSOP_TRANSITION ");
 631         if (flags & GPO_INFO_FLAG_LINKTRANSITION)
 632                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_LINKTRANSITION ");
 633         if (flags & GPO_INFO_FLAG_FORCED_REFRESH)
 634                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_FORCED_REFRESH ");
 635         if (flags & GPO_INFO_FLAG_BACKGROUND)
 636                 str = talloc_strdup_append(str, "GPO_INFO_FLAG_BACKGROUND ");
 637
 638         return str;
 639 }
 640
 641 /****************************************************************
 642 ****************************************************************/
 643
 644 NTSTATUS gp_find_file(TALLOC_CTX *mem_ctx,
 645                       uint32_t flags,
 646                       const char *filename,
 647                       const char *suffix,
 648                       const char **filename_out)
 649 {
 650         const char *tmp = NULL;
 651         struct stat sbuf;
 652         const char *path = NULL;
 653
 654         if (flags & GPO_LIST_FLAG_MACHINE) {
 655                 path = "Machine";
 656         } else {
 657                 path = "User";
 658         }
 659
 660         tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
 661                               path, suffix);
 662         NT_STATUS_HAVE_NO_MEMORY(tmp);
 663
 664         if (stat(tmp, &sbuf) == 0) {
 665                 *filename_out = tmp;
 666                 return NT_STATUS_OK;
 667         }
 668
 669         path = talloc_strdup_upper(mem_ctx, path);
 670         NT_STATUS_HAVE_NO_MEMORY(path);
 671
 672         tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
 673                               path, suffix);
 674         NT_STATUS_HAVE_NO_MEMORY(tmp);
 675
 676         if (stat(tmp, &sbuf) == 0) {
 677                 *filename_out = tmp;
 678                 return NT_STATUS_OK;
 679         }
 680
 681         return NT_STATUS_NO_SUCH_FILE;
 682 }
 683
 684 /****************************************************************
 685 ****************************************************************/
 686
 687 ADS_STATUS gp_get_machine_token(ADS_STRUCT *ads,
 688                                 TALLOC_CTX *mem_ctx,
 689                                 const char *dn,
 690                                 struct security_token **token)
 691 {
 692 #ifdef HAVE_ADS
 693         struct security_token *ad_token = NULL;
 694         ADS_STATUS status;
 695         NTSTATUS ntstatus;
 696
 697         status = ads_get_sid_token(ads, mem_ctx, dn, &ad_token);
 698         if (!ADS_ERR_OK(status)) {
 699                 return status;
 700         }
 701         ntstatus = merge_nt_token(mem_ctx, ad_token, get_system_token(),
 702                                   token);
 703         if (!NT_STATUS_IS_OK(ntstatus)) {
 704                 return ADS_ERROR_NT(ntstatus);
 705         }
 706         return ADS_SUCCESS;
 707 #else
 708         return ADS_ERROR_NT(NT_STATUS_NOT_SUPPORTED);
 709 #endif
 710 }
 711
 712 /****************************************************************
 713 ****************************************************************/
 714
 715 NTSTATUS gpo_copy(TALLOC_CTX *mem_ctx,
 716                   const struct GROUP_POLICY_OBJECT *gpo_src,
 717                   struct GROUP_POLICY_OBJECT **gpo_dst)
 718 {
 719         struct GROUP_POLICY_OBJECT *gpo;
 720
 721         gpo = talloc_zero(mem_ctx, struct GROUP_POLICY_OBJECT);
 722         NT_STATUS_HAVE_NO_MEMORY(gpo);
 723
 724         gpo->options            = gpo_src->options;
 725         gpo->version            = gpo_src->version;
 726
 727         gpo->ds_path            = talloc_strdup(gpo, gpo_src->ds_path);
 728         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->ds_path, gpo);
 729
 730         gpo->file_sys_path      = talloc_strdup(gpo, gpo_src->file_sys_path);
 731         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->file_sys_path, gpo);
 732
 733         gpo->display_name       = talloc_strdup(gpo, gpo_src->display_name);
 734         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->display_name, gpo);
 735
 736         gpo->name               = talloc_strdup(gpo, gpo_src->name);
 737         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->name, gpo);
 738
 739         gpo->link               = talloc_strdup(gpo, gpo_src->link);
 740         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->link, gpo);
 741
 742         gpo->link_type          = gpo_src->link_type;
 743
 744         if (gpo_src->user_extensions) {
 745                 gpo->user_extensions = talloc_strdup(gpo, gpo_src->user_extensions);
 746                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->user_extensions, gpo);
 747         }
 748
 749         if (gpo_src->machine_extensions) {
 750                 gpo->machine_extensions = talloc_strdup(gpo, gpo_src->machine_extensions);
 751                 NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->machine_extensions, gpo);
 752         }
 753
 754         gpo->security_descriptor = dup_sec_desc(gpo, gpo_src->security_descriptor);
 755         NT_STATUS_HAVE_NO_MEMORY_AND_FREE(gpo->security_descriptor, gpo);
 756
 757         gpo->next = gpo->prev = NULL;
 758
 759         *gpo_dst = gpo;
 760
 761         return NT_STATUS_OK;
 762 }