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 #define TALLOC_DEPRECATED 1
  20 #include "includes.h"
  21 #include "librpc/gen_ndr/ndr_misc.h"
  22 #if _SAMBA_BUILD_ == 4
  23 #include "system/filesys.h"
  24 #include "auth/auth.h"
  25 #include "../libgpo/gpo.h"
  26 #include "../lib/talloc/talloc.h"
  27 #include "source4/libgpo/ads_convenience.h"
  28 #endif
  29 #undef strdup
  30
  31 #if 0
  32 #define DEFAULT_DOMAIN_POLICY "Default Domain Policy"
  33 #define DEFAULT_DOMAIN_CONTROLLERS_POLICY "Default Domain Controllers Policy"
  34 #endif
  35
  36 /* should we store a parsed guid ? */
  37 struct gp_table {
  38         const char *name;
  39         const char *guid_string;
  40 };
  41
  42 #if 0 /* unused */
  43 static struct gp_table gpo_default_policy[] = {
  44         { DEFAULT_DOMAIN_POLICY,
  45                 "31B2F340-016D-11D2-945F-00C04FB984F9" },
  46         { DEFAULT_DOMAIN_CONTROLLERS_POLICY,
  47                 "6AC1786C-016F-11D2-945F-00C04fB984F9" },
  48         { NULL, NULL }
  49 };
  50 #endif
  51
  52 /* the following is seen in gPCMachineExtensionNames / gPCUserExtensionNames */
  53
  54 static struct gp_table gpo_cse_extensions[] = {
  55         /* used to be "Administrative Templates Extension" */
  56         /* "Registry Settings"
  57         (http://support.microsoft.com/kb/216357/EN-US/) */
  58         { "Registry Settings",
  59                 GP_EXT_GUID_REGISTRY },
  60         { "Microsoft Disc Quota",
  61                 "3610EDA5-77EF-11D2-8DC5-00C04FA31A66" },
  62         { "EFS recovery",
  63                 "B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
  64         { "Folder Redirection",
  65                 "25537BA6-77A8-11D2-9B6C-0000F8080861" },
  66         { "IP Security",
  67                 "E437BC1C-AA7D-11D2-A382-00C04F991E27" },
  68         { "Internet Explorer Branding",
  69                 "A2E30F80-D7DE-11d2-BBDE-00C04F86AE3B" },
  70         { "QoS Packet Scheduler",
  71                 "426031c0-0b47-4852-b0ca-ac3d37bfcb39" },
  72         { "Scripts",
  73                 GP_EXT_GUID_SCRIPTS },
  74         { "Security",
  75                 GP_EXT_GUID_SECURITY },
  76         { "Software Installation",
  77                 "C6DC5466-785A-11D2-84D0-00C04FB169F7" },
  78         { "Wireless Group Policy",
  79                 "0ACDD40C-75AC-BAA0-BF6DE7E7FE63" },
  80         { "Application Management",
  81                 "C6DC5466-785A-11D2-84D0-00C04FB169F7" },
  82         { "unknown",
  83                 "3060E8D0-7020-11D2-842D-00C04FA372D4" },
  84         { NULL, NULL }
  85 };
  86
  87 /* guess work */
  88 static struct gp_table gpo_cse_snapin_extensions[] = {
  89         { "Administrative Templates",
  90                 "0F6B957D-509E-11D1-A7CC-0000F87571E3" },
  91         { "Certificates",
  92                 "53D6AB1D-2488-11D1-A28C-00C04FB94F17" },
  93         { "EFS recovery policy processing",
  94                 "B1BE8D72-6EAC-11D2-A4EA-00C04F79F83A" },
  95         { "Folder Redirection policy processing",
  96                 "25537BA6-77A8-11D2-9B6C-0000F8080861" },
  97         { "Folder Redirection",
  98                 "88E729D6-BDC1-11D1-BD2A-00C04FB9603F" },
  99         { "Registry policy processing",
 100                 "35378EAC-683F-11D2-A89A-00C04FBBCFA2" },
 101         { "Remote Installation Services",
 102                 "3060E8CE-7020-11D2-842D-00C04FA372D4" },
 103         { "Security Settings",
 104                 "803E14A0-B4FB-11D0-A0D0-00A0C90F574B" },
 105         { "Security policy processing",
 106                 "827D319E-6EAC-11D2-A4EA-00C04F79F83A" },
 107         { "unknown",
 108                 "3060E8D0-7020-11D2-842D-00C04FA372D4" },
 109         { "unknown2",
 110                 "53D6AB1B-2488-11D1-A28C-00C04FB94F17" },
 111         { NULL, NULL }
 112 };
 113
 114 /****************************************************************
 115 ****************************************************************/
 116
 117 static const char *name_to_guid_string(const char *name,
 118                                        struct gp_table *table)
 119 {
 120         int i;
 121
 122         for (i = 0; table[i].name; i++) {
 123                 if (strequal(name, table[i].name)) {
 124                         return table[i].guid_string;
 125                 }
 126         }
 127
 128         return NULL;
 129 }
 130
 131 /****************************************************************
 132 ****************************************************************/
 133
 134 static const char *guid_string_to_name(const char *guid_string,
 135                                        struct gp_table *table)
 136 {
 137         int i;
 138
 139         for (i = 0; table[i].guid_string; i++) {
 140                 if (strequal(guid_string, table[i].guid_string)) {
 141                         return table[i].name;
 142                 }
 143         }
 144
 145         return NULL;
 146 }
 147
 148 /****************************************************************
 149 ****************************************************************/
 150
 151 static const char *snapin_guid_string_to_name(const char *guid_string,
 152                                               struct gp_table *table)
 153 {
 154         int i;
 155         for (i = 0; table[i].guid_string; i++) {
 156                 if (strequal(guid_string, table[i].guid_string)) {
 157                         return table[i].name;
 158                 }
 159         }
 160         return NULL;
 161 }
 162
 163 #if 0 /* unused */
 164 static const char *default_gpo_name_to_guid_string(const char *name)
 165 {
 166         return name_to_guid_string(name, gpo_default_policy);
 167 }
 168
 169 static const char *default_gpo_guid_string_to_name(const char *guid)
 170 {
 171         return guid_string_to_name(guid, gpo_default_policy);
 172 }
 173 #endif
 174
 175 /****************************************************************
 176 ****************************************************************/
 177
 178 const char *cse_gpo_guid_string_to_name(const char *guid)
 179 {
 180         return guid_string_to_name(guid, gpo_cse_extensions);
 181 }
 182
 183 /****************************************************************
 184 ****************************************************************/
 185
 186 const char *cse_gpo_name_to_guid_string(const char *name)
 187 {
 188         return name_to_guid_string(name, gpo_cse_extensions);
 189 }
 190
 191 /****************************************************************
 192 ****************************************************************/
 193
 194 const char *cse_snapin_gpo_guid_string_to_name(const char *guid)
 195 {
 196         return snapin_guid_string_to_name(guid, gpo_cse_snapin_extensions);
 197 }
 198
 199 /****************************************************************
 200 ****************************************************************/
 201
 202 void dump_gp_ext(struct GP_EXT *gp_ext, int debuglevel)
 203 {
 204         int lvl = debuglevel;
 205         int i;
 206
 207         if (gp_ext == NULL) {
 208                 return;
 209         }
 210
 211         DEBUG(lvl,("\t---------------------\n\n"));
 212         DEBUGADD(lvl,("\tname:\t\t\t%s\n", gp_ext->gp_extension));
 213
 214         for (i=0; i< gp_ext->num_exts; i++) {
 215
 216                 DEBUGADD(lvl,("\textension:\t\t\t%s\n",
 217                         gp_ext->extensions_guid[i]));
 218                 DEBUGADD(lvl,("\textension (name):\t\t\t%s\n",
 219                         gp_ext->extensions[i]));
 220
 221                 DEBUGADD(lvl,("\tsnapin:\t\t\t%s\n",
 222                         gp_ext->snapins_guid[i]));
 223                 DEBUGADD(lvl,("\tsnapin (name):\t\t\t%s\n",
 224                         gp_ext->snapins[i]));
 225         }
 226 }
 227
 228 #ifdef HAVE_LDAP
 229
 230 /****************************************************************
 231 ****************************************************************/
 232
 233 void dump_gpo(ADS_STRUCT *ads,
 234               TALLOC_CTX *mem_ctx,
 235               struct GROUP_POLICY_OBJECT *gpo,
 236               int debuglevel)
 237 {
 238         int lvl = debuglevel;
 239
 240         if (gpo == NULL) {
 241                 return;
 242         }
 243
 244         DEBUG(lvl,("---------------------\n\n"));
 245
 246         DEBUGADD(lvl,("name:\t\t\t%s\n", gpo->name));
 247         DEBUGADD(lvl,("displayname:\t\t%s\n", gpo->display_name));
 248         DEBUGADD(lvl,("version:\t\t%d (0x%08x)\n", gpo->version, gpo->version));
 249         DEBUGADD(lvl,("version_user:\t\t%d (0x%04x)\n",
 250                 GPO_VERSION_USER(gpo->version),
 251                 GPO_VERSION_USER(gpo->version)));
 252         DEBUGADD(lvl,("version_machine:\t%d (0x%04x)\n",
 253                 GPO_VERSION_MACHINE(gpo->version),
 254                  GPO_VERSION_MACHINE(gpo->version)));
 255         DEBUGADD(lvl,("filesyspath:\t\t%s\n", gpo->file_sys_path));
 256         DEBUGADD(lvl,("dspath:\t\t%s\n", gpo->ds_path));
 257
 258         DEBUGADD(lvl,("options:\t\t%d ", gpo->options));
 259         switch (gpo->options) {
 260                 case GPFLAGS_ALL_ENABLED:
 261                         DEBUGADD(lvl,("GPFLAGS_ALL_ENABLED\n"));
 262                         break;
 263                 case GPFLAGS_USER_SETTINGS_DISABLED:
 264                         DEBUGADD(lvl,("GPFLAGS_USER_SETTINGS_DISABLED\n"));
 265                         break;
 266                 case GPFLAGS_MACHINE_SETTINGS_DISABLED:
 267                         DEBUGADD(lvl,("GPFLAGS_MACHINE_SETTINGS_DISABLED\n"));
 268                         break;
 269                 case GPFLAGS_ALL_DISABLED:
 270                         DEBUGADD(lvl,("GPFLAGS_ALL_DISABLED\n"));
 271                         break;
 272                 default:
 273                         DEBUGADD(lvl,("unknown option: %d\n", gpo->options));
 274                         break;
 275         }
 276
 277         DEBUGADD(lvl,("link:\t\t\t%s\n", gpo->link));
 278         DEBUGADD(lvl,("link_type:\t\t%d ", gpo->link_type));
 279         switch (gpo->link_type) {
 280                 case GP_LINK_UNKOWN:
 281                         DEBUGADD(lvl,("GP_LINK_UNKOWN\n"));
 282                         break;
 283                 case GP_LINK_OU:
 284                         DEBUGADD(lvl,("GP_LINK_OU\n"));
 285                         break;
 286                 case GP_LINK_DOMAIN:
 287                         DEBUGADD(lvl,("GP_LINK_DOMAIN\n"));
 288                         break;
 289                 case GP_LINK_SITE:
 290                         DEBUGADD(lvl,("GP_LINK_SITE\n"));
 291                         break;
 292                 case GP_LINK_MACHINE:
 293                         DEBUGADD(lvl,("GP_LINK_MACHINE\n"));
 294                         break;
 295                 default:
 296                         break;
 297         }
 298
 299         DEBUGADD(lvl,("machine_extensions:\t%s\n", gpo->machine_extensions));
 300
 301         if (gpo->machine_extensions) {
 302
 303                 struct GP_EXT *gp_ext = NULL;
 304
 305                 if (!ads_parse_gp_ext(mem_ctx, gpo->machine_extensions,
 306                                       &gp_ext)) {
 307                         return;
 308                 }
 309                 dump_gp_ext(gp_ext, lvl);
 310         }
 311
 312         DEBUGADD(lvl,("user_extensions:\t%s\n", gpo->user_extensions));
 313
 314         if (gpo->user_extensions) {
 315
 316                 struct GP_EXT *gp_ext = NULL;
 317
 318                 if (!ads_parse_gp_ext(mem_ctx, gpo->user_extensions,
 319                                       &gp_ext)) {
 320                         return;
 321                 }
 322                 dump_gp_ext(gp_ext, lvl);
 323         }
 324
 325         DEBUGADD(lvl,("security descriptor:\n"));
 326
 327         NDR_PRINT_DEBUG(security_descriptor, gpo->security_descriptor);
 328 }
 329
 330 /****************************************************************
 331 ****************************************************************/
 332
 333 void dump_gpo_list(ADS_STRUCT *ads,
 334                    TALLOC_CTX *mem_ctx,
 335                    struct GROUP_POLICY_OBJECT *gpo_list,
 336                    int debuglevel)
 337 {
 338         struct GROUP_POLICY_OBJECT *gpo = NULL;
 339
 340         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 341                 dump_gpo(ads, mem_ctx, gpo, debuglevel);
 342         }
 343 }
 344
 345 /****************************************************************
 346 ****************************************************************/
 347
 348 void dump_gplink(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx, struct GP_LINK *gp_link)
 349 {
 350         ADS_STATUS status;
 351         int i;
 352         int lvl = 10;
 353
 354         if (gp_link == NULL) {
 355                 return;
 356         }
 357
 358         DEBUG(lvl,("---------------------\n\n"));
 359
 360         DEBUGADD(lvl,("gplink: %s\n", gp_link->gp_link));
 361         DEBUGADD(lvl,("gpopts: %d ", gp_link->gp_opts));
 362         switch (gp_link->gp_opts) {
 363                 case GPOPTIONS_INHERIT:
 364                         DEBUGADD(lvl,("GPOPTIONS_INHERIT\n"));
 365                         break;
 366                 case GPOPTIONS_BLOCK_INHERITANCE:
 367                         DEBUGADD(lvl,("GPOPTIONS_BLOCK_INHERITANCE\n"));
 368                         break;
 369                 default:
 370                         break;
 371         }
 372
 373         DEBUGADD(lvl,("num links: %d\n", gp_link->num_links));
 374
 375         for (i = 0; i < gp_link->num_links; i++) {
 376
 377                 DEBUGADD(lvl,("---------------------\n\n"));
 378
 379                 DEBUGADD(lvl,("link: #%d\n", i + 1));
 380                 DEBUGADD(lvl,("name: %s\n", gp_link->link_names[i]));
 381
 382                 DEBUGADD(lvl,("opt: %d ", gp_link->link_opts[i]));
 383                 if (gp_link->link_opts[i] & GPO_LINK_OPT_ENFORCED) {
 384                         DEBUGADD(lvl,("GPO_LINK_OPT_ENFORCED "));
 385                 }
 386                 if (gp_link->link_opts[i] & GPO_LINK_OPT_DISABLED) {
 387                         DEBUGADD(lvl,("GPO_LINK_OPT_DISABLED"));
 388                 }
 389                 DEBUGADD(lvl,("\n"));
 390
 391                 if (ads != NULL && mem_ctx != NULL) {
 392
 393                         struct GROUP_POLICY_OBJECT gpo;
 394
 395                         status = ads_get_gpo(ads, mem_ctx,
 396                                              gp_link->link_names[i],
 397                                              NULL, NULL, &gpo);
 398                         if (!ADS_ERR_OK(status)) {
 399                                 DEBUG(lvl,("get gpo for %s failed: %s\n",
 400                                         gp_link->link_names[i],
 401                                         ads_errstr(status)));
 402                                 return;
 403                         }
 404                         dump_gpo(ads, mem_ctx, &gpo, lvl);
 405                 }
 406         }
 407 }
 408
 409 #endif /* HAVE_LDAP */
 410
 411 /****************************************************************
 412 ****************************************************************/
 413
 414 static bool gpo_get_gp_ext_from_gpo(TALLOC_CTX *mem_ctx,
 415                                     uint32_t flags,
 416                                     struct GROUP_POLICY_OBJECT *gpo,
 417                                     struct GP_EXT **gp_ext)
 418 {
 419         ZERO_STRUCTP(*gp_ext);
 420
 421         if (flags & GPO_INFO_FLAG_MACHINE) {
 422
 423                 if (gpo->machine_extensions) {
 424
 425                         if (!ads_parse_gp_ext(mem_ctx, gpo->machine_extensions,
 426                                               gp_ext)) {
 427                                 return false;
 428                         }
 429                 }
 430         } else {
 431
 432                 if (gpo->user_extensions) {
 433
 434                         if (!ads_parse_gp_ext(mem_ctx, gpo->user_extensions,
 435                                               gp_ext)) {
 436                                 return false;
 437                         }
 438                 }
 439         }
 440
 441         return true;
 442 }
 443
 444 /****************************************************************
 445 ****************************************************************/
 446
 447 ADS_STATUS gpo_process_a_gpo(ADS_STRUCT *ads,
 448                              TALLOC_CTX *mem_ctx,
 449                              const NT_USER_TOKEN *token,
 450                              struct registry_key *root_key,
 451                              struct GROUP_POLICY_OBJECT *gpo,
 452                              const char *extension_guid_filter,
 453                              uint32_t flags)
 454 {
 455         struct GP_EXT *gp_ext = NULL;
 456         int i;
 457
 458         DEBUG(10,("gpo_process_a_gpo: processing gpo %s (%s)\n",
 459                 gpo->name, gpo->display_name));
 460         if (extension_guid_filter) {
 461                 DEBUGADD(10,("gpo_process_a_gpo: using filter %s (%s)\n",
 462                         extension_guid_filter,
 463                         cse_gpo_guid_string_to_name(extension_guid_filter)));
 464         }
 465
 466         if (!gpo_get_gp_ext_from_gpo(mem_ctx, flags, gpo, &gp_ext)) {
 467                 return ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 468         }
 469
 470         if (!gp_ext || !gp_ext->num_exts) {
 471                 if (flags & GPO_INFO_FLAG_VERBOSE) {
 472                         DEBUG(0,("gpo_process_a_gpo: "
 473                                 "no policies in %s (%s) for this extension\n",
 474                                 gpo->name, gpo->display_name));
 475                 }
 476                 return ADS_SUCCESS;
 477         }
 478
 479         for (i=0; i<gp_ext->num_exts; i++) {
 480
 481                 NTSTATUS ntstatus;
 482
 483                 if (extension_guid_filter &&
 484                     !strequal(extension_guid_filter,
 485                               gp_ext->extensions_guid[i])) {
 486                         continue;
 487                 }
 488
 489                 ntstatus = gpext_process_extension(ads, mem_ctx,
 490                                                    flags, token, root_key, gpo,
 491                                                    gp_ext->extensions_guid[i],
 492                                                    gp_ext->snapins_guid[i]);
 493                 if (!NT_STATUS_IS_OK(ntstatus)) {
 494                         ADS_ERROR_NT(ntstatus);
 495                 }
 496         }
 497
 498         return ADS_SUCCESS;
 499 }
 500
 501 /****************************************************************
 502 ****************************************************************/
 503
 504 static ADS_STATUS gpo_process_gpo_list_by_ext(ADS_STRUCT *ads,
 505                                               TALLOC_CTX *mem_ctx,
 506                                               const NT_USER_TOKEN *token,
 507                                               struct registry_key *root_key,
 508                                               struct GROUP_POLICY_OBJECT *gpo_list,
 509                                               const char *extensions_guid,
 510                                               uint32_t flags)
 511 {
 512         ADS_STATUS status;
 513         struct GROUP_POLICY_OBJECT *gpo;
 514
 515         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 516
 517                 if (gpo->link_type == GP_LINK_LOCAL) {
 518                         continue;
 519                 }
 520
 521
 522                 /* FIXME: we need to pass down the *list* down to the
 523                  * extension, otherwise we cannot store the e.g. the *list* of
 524                  * logon-scripts correctly (for more then one GPO) */
 525
 526                 status = gpo_process_a_gpo(ads, mem_ctx, token, root_key,
 527                                            gpo, extensions_guid, flags);
 528
 529                 if (!ADS_ERR_OK(status)) {
 530                         DEBUG(0,("failed to process gpo by ext: %s\n",
 531                                 ads_errstr(status)));
 532                         return status;
 533                 }
 534         }
 535
 536         return ADS_SUCCESS;
 537 }
 538
 539 /****************************************************************
 540 ****************************************************************/
 541
 542 ADS_STATUS gpo_process_gpo_list(ADS_STRUCT *ads,
 543                                 TALLOC_CTX *mem_ctx,
 544                                 const NT_USER_TOKEN *token,
 545                                 struct GROUP_POLICY_OBJECT *gpo_list,
 546                                 const char *extensions_guid_filter,
 547                                 uint32_t flags)
 548 {
 549         ADS_STATUS status = ADS_SUCCESS;
 550         struct gp_extension *gp_ext_list = NULL;
 551         struct gp_extension *gp_ext = NULL;
 552         struct registry_key *root_key = NULL;
 553         struct gp_registry_context *reg_ctx = NULL;
 554         WERROR werr;
 555
 556         status = ADS_ERROR_NT(init_gp_extensions(mem_ctx));
 557         if (!ADS_ERR_OK(status)) {
 558                 return status;
 559         }
 560
 561         gp_ext_list = get_gp_extension_list();
 562         if (!gp_ext_list) {
 563                 return ADS_ERROR_NT(NT_STATUS_DLL_INIT_FAILED);
 564         }
 565 /* FIXME Needs to be replaced with new patchfile_preg calls */
 566 #if 0
 567         /* get the key here */
 568         if (flags & GPO_LIST_FLAG_MACHINE) {
 569                 werr = gp_init_reg_ctx(mem_ctx, KEY_HKLM, REG_KEY_WRITE,
 570                                        get_system_token(),
 571                                        &reg_ctx);
 572         } else {
 573                 werr = gp_init_reg_ctx(mem_ctx, KEY_HKCU, REG_KEY_WRITE,
 574                                        token,
 575                                        &reg_ctx);
 576         }
 577 #endif
 578         if (!W_ERROR_IS_OK(werr)) {
 579                 talloc_free(reg_ctx);
 580                 return ADS_ERROR_NT(werror_to_ntstatus(werr));
 581         }
 582
 583         root_key = reg_ctx->curr_key;
 584
 585         for (gp_ext = gp_ext_list; gp_ext; gp_ext = gp_ext->next) {
 586
 587                 const char *guid_str = NULL;
 588
 589                 guid_str = GUID_string(mem_ctx, gp_ext->guid);
 590                 if (!guid_str) {
 591                         status = ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
 592                         goto done;
 593                 }
 594
 595                 if (extensions_guid_filter &&
 596                     (!strequal(guid_str, extensions_guid_filter)))  {
 597                         continue;
 598                 }
 599
 600                 DEBUG(0,("-------------------------------------------------\n"));
 601                 DEBUG(0,("gpo_process_gpo_list: processing ext: %s {%s}\n",
 602                         gp_ext->name, guid_str));
 603
 604
 605                 status = gpo_process_gpo_list_by_ext(ads, mem_ctx, token,
 606                                                      root_key, gpo_list,
 607                                                      guid_str, flags);
 608                 if (!ADS_ERR_OK(status)) {
 609                         goto done;
 610                 }
 611         }
 612
 613  done:
 614         talloc_free(reg_ctx);
 615         talloc_free(root_key);
 616         free_gp_extensions();
 617
 618         return status;
 619 }
 620
 621
 622 /****************************************************************
 623  check wether the version number in a GROUP_POLICY_OBJECT match those of the
 624  locally stored version. If not, fetch the required policy via CIFS
 625 ****************************************************************/
 626
 627 NTSTATUS check_refresh_gpo(ADS_STRUCT *ads,
 628                            TALLOC_CTX *mem_ctx,
 629                            const char *cache_path,
 630                            struct loadparm_context *lp_ctx,
 631                            uint32_t flags,
 632                            struct GROUP_POLICY_OBJECT *gpo)
 633 {
 634         NTSTATUS result;
 635         char *server = NULL;
 636         char *share = NULL;
 637         char *nt_path = NULL;
 638         char *unix_path = NULL;
 639         uint32_t sysvol_gpt_version = 0;
 640         char *display_name = NULL;
 641
 642         result = gpo_explode_filesyspath(mem_ctx, cache_path, gpo->file_sys_path,
 643                                          &server, &share, &nt_path, &unix_path);
 644
 645         if (!NT_STATUS_IS_OK(result)) {
 646                 goto out;
 647         }
 648
 649         result = gpo_get_sysvol_gpt_version(mem_ctx,
 650                                             unix_path,
 651                                             &sysvol_gpt_version,
 652                                             &display_name);
 653         if (!NT_STATUS_IS_OK(result) &&
 654             !NT_STATUS_EQUAL(result, NT_STATUS_NO_SUCH_FILE)) {
 655                 DEBUG(10,("check_refresh_gpo: "
 656                         "failed to get local gpt version: %s\n",
 657                         nt_errstr(result)));
 658                 goto out;
 659         }
 660
 661         DEBUG(10,("check_refresh_gpo: versions gpo %d sysvol %d\n",
 662                 gpo->version, sysvol_gpt_version));
 663
 664         /* FIXME: handle GPO_INFO_FLAG_FORCED_REFRESH from flags */
 665
 666         while (gpo->version > sysvol_gpt_version) {
 667
 668                 DEBUG(1,("check_refresh_gpo: need to refresh GPO\n"));
 669
 670                 result = gpo_fetch_files(mem_ctx, ads, lp_ctx, cache_path, gpo);
 671                 if (!NT_STATUS_IS_OK(result)) {
 672                         goto out;
 673                 }
 674
 675                 result = gpo_get_sysvol_gpt_version(mem_ctx,
 676                                                     unix_path,
 677                                                     &sysvol_gpt_version,
 678                                                     &display_name);
 679                 if (!NT_STATUS_IS_OK(result)) {
 680                         DEBUG(10,("check_refresh_gpo: "
 681                                 "failed to get local gpt version: %s\n",
 682                                 nt_errstr(result)));
 683                         goto out;
 684                 }
 685
 686                 if (gpo->version == sysvol_gpt_version) {
 687                         break;
 688                 }
 689         }
 690
 691         DEBUG(10,("Name:\t\t\t%s (%s)\n", gpo->display_name, gpo->name));
 692         DEBUGADD(10,("sysvol GPT version:\t%d (user: %d, machine: %d)\n",
 693                 sysvol_gpt_version,
 694                 GPO_VERSION_USER(sysvol_gpt_version),
 695                 GPO_VERSION_MACHINE(sysvol_gpt_version)));
 696         DEBUGADD(10,("LDAP GPO version:\t%d (user: %d, machine: %d)\n",
 697                 gpo->version,
 698                 GPO_VERSION_USER(gpo->version),
 699                 GPO_VERSION_MACHINE(gpo->version)));
 700         DEBUGADD(10,("LDAP GPO link:\t\t%s\n", gpo->link));
 701
 702         result = NT_STATUS_OK;
 703
 704  out:
 705         return result;
 706
 707 }
 708
 709 /****************************************************************
 710  check wether the version numbers in the gpo_list match the locally stored, if
 711  not, go and get each required GPO via CIFS
 712  ****************************************************************/
 713
 714 NTSTATUS check_refresh_gpo_list(ADS_STRUCT *ads,
 715                                 TALLOC_CTX *mem_ctx,
 716                                 const char *cache_path,
 717                                 struct loadparm_context *lp_ctx,
 718                                 uint32_t flags,
 719                                 struct GROUP_POLICY_OBJECT *gpo_list)
 720 {
 721         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 722         struct GROUP_POLICY_OBJECT *gpo;
 723
 724         if (!gpo_list) {
 725                 return NT_STATUS_INVALID_PARAMETER;
 726         }
 727
 728         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 729
 730                 result = check_refresh_gpo(ads, mem_ctx, cache_path, lp_ctx, flags, gpo);
 731                 if (!NT_STATUS_IS_OK(result)) {
 732                         goto out;
 733                 }
 734         }
 735
 736         result = NT_STATUS_OK;
 737
 738  out:
 739         /* FIXME close cli connection */
 740
 741         return result;
 742 }
 743
 744 /****************************************************************
 745 ****************************************************************/
 746
 747 NTSTATUS gpo_get_unix_path(TALLOC_CTX *mem_ctx,
 748                            const char *cache_path,
 749                            struct GROUP_POLICY_OBJECT *gpo,
 750                            char **unix_path)
 751 {
 752         char *server, *share, *nt_path;
 753         return gpo_explode_filesyspath(mem_ctx, cache_path, gpo->file_sys_path,
 754                                        &server, &share, &nt_path, unix_path);
 755 }
 756
 757 /****************************************************************
 758 ****************************************************************/
 759
 760 char *gpo_flag_str(TALLOC_CTX *ctx, uint32_t flags)
 761 {
 762         char *str = NULL;
 763
 764         if (flags == 0) {
 765                 return NULL;
 766         }
 767
 768         if (flags & GPO_INFO_FLAG_SLOWLINK)
 769                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_SLOWLINK ");
 770         if (flags & GPO_INFO_FLAG_VERBOSE)
 771                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_VERBOSE ");
 772         if (flags & GPO_INFO_FLAG_SAFEMODE_BOOT)
 773                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_SAFEMODE_BOOT ");
 774         if (flags & GPO_INFO_FLAG_NOCHANGES)
 775                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_NOCHANGES ");
 776         if (flags & GPO_INFO_FLAG_MACHINE)
 777                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_MACHINE ");
 778         if (flags & GPO_INFO_FLAG_LOGRSOP_TRANSITION)
 779                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_LOGRSOP_TRANSITION ");
 780         if (flags & GPO_INFO_FLAG_LINKTRANSITION)
 781                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_LINKTRANSITION ");
 782         if (flags & GPO_INFO_FLAG_FORCED_REFRESH)
 783                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_FORCED_REFRESH ");
 784         if (flags & GPO_INFO_FLAG_BACKGROUND)
 785                 str = talloc_append_string(ctx, str, "GPO_INFO_FLAG_BACKGROUND ");
 786
 787         return str;
 788 }
 789
 790 /****************************************************************
 791 ****************************************************************/
 792
 793 NTSTATUS gp_find_file(TALLOC_CTX *mem_ctx,
 794                       uint32_t flags,
 795                       const char *filename,
 796                       const char *suffix,
 797                       const char **filename_out)
 798 {
 799         const char *tmp = NULL;
 800         struct stat sbuf;
 801         const char *path = NULL;
 802
 803         if (flags & GPO_LIST_FLAG_MACHINE) {
 804                 path = "Machine";
 805         } else {
 806                 path = "User";
 807         }
 808
 809         tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
 810                               path, suffix);
 811         NT_STATUS_HAVE_NO_MEMORY(tmp);
 812
 813         if (stat(tmp, &sbuf) == 0) {
 814                 *filename_out = tmp;
 815                 return NT_STATUS_OK;
 816         }
 817
 818         path = talloc_strdup_upper(mem_ctx, path);
 819         NT_STATUS_HAVE_NO_MEMORY(path);
 820
 821         tmp = talloc_asprintf(mem_ctx, "%s/%s/%s", filename,
 822                               path, suffix);
 823         NT_STATUS_HAVE_NO_MEMORY(tmp);
 824
 825         if (stat(tmp, &sbuf) == 0) {
 826                 *filename_out = tmp;
 827                 return NT_STATUS_OK;
 828         }
 829
 830         return NT_STATUS_NO_SUCH_FILE;
 831 }
 832
 833 /****************************************************************
 834 ****************************************************************/
 835
 836 ADS_STATUS gp_get_machine_token(ADS_STRUCT *ads,
 837                                 TALLOC_CTX *mem_ctx,
 838                                 struct loadparm_context *lp_ctx,
 839                                 const char *dn,
 840                                 NT_USER_TOKEN **token)
 841 {
 842         NT_USER_TOKEN *ad_token = NULL;
 843         ADS_STATUS status;
 844 #if _SAMBA_BUILD_ == 4
 845         struct auth_session_info *info;
 846 #else
 847         NTSTATUS ntstatus;
 848 #endif
 849
 850 #ifndef HAVE_ADS
 851         return ADS_ERROR_NT(NT_STATUS_NOT_SUPPORTED);
 852 #endif
 853         status = ads_get_sid_token(ads, mem_ctx, dn, &ad_token);
 854         if (!ADS_ERR_OK(status)) {
 855                 return status;
 856         }
 857 #if _SAMBA_BUILD_ == 4
 858         info = system_session(mem_ctx, lp_ctx);
 859         *token = info->security_token;
 860 #else
 861         ntstatus = merge_nt_token(mem_ctx, ad_token, get_system_token(),
 862                                   token);
 863         if (!NT_STATUS_IS_OK(ntstatus)) {
 864                 return ADS_ERROR_NT(ntstatus);
 865         }
 866 #endif
 867         return ADS_SUCCESS;
 868 }