libgpo/gpo_reg.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  Group Policy Object Support
   4  *  Copyright (C) Guenther Deschner 2007-2008
   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 "../libgpo/gpo.h"
  22 #include "libgpo/gpo_proto.h"
  23 #include "registry.h"
  24 #include "registry/reg_api.h"
  25 #include "registry/reg_backend_db.h"
  26 #include "registry/reg_api_util.h"
  27 #include "registry/reg_init_basic.h"
  28 #include "../libcli/security/security.h"
  29 #include "../libcli/registry/util_reg.h"
  30
  31
  32 /****************************************************************
  33 ****************************************************************/
  34
  35 struct security_token *registry_create_system_token(TALLOC_CTX *mem_ctx)
  36 {
  37         struct security_token *token = NULL;
  38
  39         token = talloc_zero(mem_ctx, struct security_token);
  40         if (!token) {
  41                 DEBUG(1,("talloc failed\n"));
  42                 return NULL;
  43         }
  44
  45         token->privilege_mask = SE_ALL_PRIVS;
  46
  47         if (!NT_STATUS_IS_OK(add_sid_to_array(token, &global_sid_System,
  48                          &token->sids, &token->num_sids))) {
  49                 DEBUG(1,("Error adding nt-authority system sid to token\n"));
  50                 return NULL;
  51         }
  52
  53         return token;
  54 }
  55
  56 /****************************************************************
  57 ****************************************************************/
  58
  59 WERROR gp_init_reg_ctx(TALLOC_CTX *mem_ctx,
  60                        const char *initial_path,
  61                        uint32_t desired_access,
  62                        const struct security_token *token,
  63                        struct gp_registry_context **reg_ctx)
  64 {
  65         struct gp_registry_context *tmp_ctx;
  66         WERROR werr;
  67
  68         if (!reg_ctx) {
  69                 return WERR_INVALID_PARAMETER;
  70         }
  71
  72         werr = registry_init_basic();
  73         if (!W_ERROR_IS_OK(werr)) {
  74                 return werr;
  75         }
  76
  77         tmp_ctx = talloc_zero(mem_ctx, struct gp_registry_context);
  78         W_ERROR_HAVE_NO_MEMORY(tmp_ctx);
  79
  80         if (token) {
  81                 tmp_ctx->token = token;
  82         } else {
  83                 tmp_ctx->token = registry_create_system_token(mem_ctx);
  84         }
  85         if (!tmp_ctx->token) {
  86                 TALLOC_FREE(tmp_ctx);
  87                 return WERR_NOT_ENOUGH_MEMORY;
  88         }
  89
  90         werr = regdb_open();
  91         if (!W_ERROR_IS_OK(werr)) {
  92                 return werr;
  93         }
  94
  95         if (initial_path) {
  96                 tmp_ctx->path = talloc_strdup(mem_ctx, initial_path);
  97                 if (!tmp_ctx->path) {
  98                         TALLOC_FREE(tmp_ctx);
  99                         return WERR_NOT_ENOUGH_MEMORY;
 100                 }
 101
 102                 werr = reg_open_path(mem_ctx, tmp_ctx->path, desired_access,
 103                                      tmp_ctx->token, &tmp_ctx->curr_key);
 104                 if (!W_ERROR_IS_OK(werr)) {
 105                         TALLOC_FREE(tmp_ctx);
 106                         return werr;
 107                 }
 108         }
 109
 110         *reg_ctx = tmp_ctx;
 111
 112         return WERR_OK;
 113 }
 114
 115 /****************************************************************
 116 ****************************************************************/
 117
 118 void gp_free_reg_ctx(struct gp_registry_context *reg_ctx)
 119 {
 120         TALLOC_FREE(reg_ctx);
 121 }
 122
 123 /****************************************************************
 124 ****************************************************************/
 125
 126 WERROR gp_store_reg_subkey(TALLOC_CTX *mem_ctx,
 127                            const char *subkeyname,
 128                            struct registry_key *curr_key,
 129                            struct registry_key **new_key)
 130 {
 131         enum winreg_CreateAction action = REG_ACTION_NONE;
 132         WERROR werr;
 133
 134         werr = reg_createkey(mem_ctx, curr_key, subkeyname,
 135                              REG_KEY_WRITE, new_key, &action);
 136         if (W_ERROR_IS_OK(werr) && (action != REG_CREATED_NEW_KEY)) {
 137                 return WERR_OK;
 138         }
 139
 140         return werr;
 141 }
 142
 143 /****************************************************************
 144 ****************************************************************/
 145
 146 WERROR gp_read_reg_subkey(TALLOC_CTX *mem_ctx,
 147                           struct gp_registry_context *reg_ctx,
 148                           const char *subkeyname,
 149                           struct registry_key **key)
 150 {
 151         const char *tmp = NULL;
 152
 153         if (!reg_ctx || !subkeyname || !key) {
 154                 return WERR_INVALID_PARAMETER;
 155         }
 156
 157         tmp = talloc_asprintf(mem_ctx, "%s\\%s", reg_ctx->path, subkeyname);
 158         W_ERROR_HAVE_NO_MEMORY(tmp);
 159
 160         return reg_open_path(mem_ctx, tmp, REG_KEY_READ,
 161                              reg_ctx->token, key);
 162 }
 163
 164 /****************************************************************
 165 ****************************************************************/
 166
 167 WERROR gp_store_reg_val_sz(TALLOC_CTX *mem_ctx,
 168                            struct registry_key *key,
 169                            const char *val_name,
 170                            const char *val)
 171 {
 172         struct registry_value reg_val;
 173
 174         reg_val.type = REG_SZ;
 175         if (!push_reg_sz(mem_ctx, &reg_val.data, val)) {
 176                 return WERR_NOT_ENOUGH_MEMORY;
 177         }
 178
 179         return reg_setvalue(key, val_name, &reg_val);
 180 }
 181
 182 /****************************************************************
 183 ****************************************************************/
 184
 185 static WERROR gp_store_reg_val_dword(TALLOC_CTX *mem_ctx,
 186                                      struct registry_key *key,
 187                                      const char *val_name,
 188                                      uint32_t val)
 189 {
 190         struct registry_value reg_val;
 191
 192         reg_val.type = REG_DWORD;
 193         reg_val.data = data_blob_talloc(mem_ctx, NULL, 4);
 194         SIVAL(reg_val.data.data, 0, val);
 195
 196         return reg_setvalue(key, val_name, &reg_val);
 197 }
 198
 199 /****************************************************************
 200 ****************************************************************/
 201
 202 WERROR gp_read_reg_val_sz(TALLOC_CTX *mem_ctx,
 203                           struct registry_key *key,
 204                           const char *val_name,
 205                           const char **val)
 206 {
 207         WERROR werr;
 208         struct registry_value *reg_val = NULL;
 209
 210         werr = reg_queryvalue(mem_ctx, key, val_name, &reg_val);
 211         W_ERROR_NOT_OK_RETURN(werr);
 212
 213         if (reg_val->type != REG_SZ) {
 214                 return WERR_INVALID_DATATYPE;
 215         }
 216
 217         if (!pull_reg_sz(mem_ctx, &reg_val->data, val)) {
 218                 return WERR_NOT_ENOUGH_MEMORY;
 219         }
 220
 221         return WERR_OK;
 222 }
 223
 224 /****************************************************************
 225 ****************************************************************/
 226
 227 static WERROR gp_read_reg_val_dword(TALLOC_CTX *mem_ctx,
 228                                     struct registry_key *key,
 229                                     const char *val_name,
 230                                     uint32_t *val)
 231 {
 232         WERROR werr;
 233         struct registry_value *reg_val = NULL;
 234
 235         werr = reg_queryvalue(mem_ctx, key, val_name, &reg_val);
 236         W_ERROR_NOT_OK_RETURN(werr);
 237
 238         if (reg_val->type != REG_DWORD) {
 239                 return WERR_INVALID_DATATYPE;
 240         }
 241
 242         if (reg_val->data.length < 4) {
 243                 return WERR_INSUFFICIENT_BUFFER;
 244         }
 245         *val = IVAL(reg_val->data.data, 0);
 246
 247         return WERR_OK;
 248 }
 249
 250 /****************************************************************
 251 ****************************************************************/
 252
 253 static WERROR gp_store_reg_gpovals(TALLOC_CTX *mem_ctx,
 254                                    struct registry_key *key,
 255                                    struct GROUP_POLICY_OBJECT *gpo)
 256 {
 257         WERROR werr;
 258
 259         if (!key || !gpo) {
 260                 return WERR_INVALID_PARAMETER;
 261         }
 262
 263         werr = gp_store_reg_val_dword(mem_ctx, key, "Version",
 264                                       gpo->version);
 265         W_ERROR_NOT_OK_RETURN(werr);
 266
 267         werr = gp_store_reg_val_dword(mem_ctx, key, "WQLFilterPass",
 268                                       true); /* fake */
 269         W_ERROR_NOT_OK_RETURN(werr);
 270
 271         werr = gp_store_reg_val_dword(mem_ctx, key, "AccessDenied",
 272                                       false); /* fake */
 273         W_ERROR_NOT_OK_RETURN(werr);
 274
 275         werr = gp_store_reg_val_dword(mem_ctx, key, "GPO-Disabled",
 276                                       (gpo->options & GPO_FLAG_DISABLE));
 277         W_ERROR_NOT_OK_RETURN(werr);
 278
 279         werr = gp_store_reg_val_dword(mem_ctx, key, "Options",
 280                                       gpo->options);
 281         W_ERROR_NOT_OK_RETURN(werr);
 282
 283         werr = gp_store_reg_val_sz(mem_ctx, key, "GPOID",
 284                                    gpo->name);
 285         W_ERROR_NOT_OK_RETURN(werr);
 286
 287         werr = gp_store_reg_val_sz(mem_ctx, key, "SOM",
 288                                    gpo->link ? gpo->link : "");
 289         W_ERROR_NOT_OK_RETURN(werr);
 290
 291         werr = gp_store_reg_val_sz(mem_ctx, key, "DisplayName",
 292                                    gpo->display_name);
 293         W_ERROR_NOT_OK_RETURN(werr);
 294
 295         werr = gp_store_reg_val_sz(mem_ctx, key, "WQL-Id",
 296                                    "");
 297         W_ERROR_NOT_OK_RETURN(werr);
 298
 299         return werr;
 300 }
 301
 302 /****************************************************************
 303 ****************************************************************/
 304
 305 static const char *gp_reg_groupmembership_path(TALLOC_CTX *mem_ctx,
 306                                                const struct dom_sid *sid,
 307                                                uint32_t flags)
 308 {
 309         if (flags & GPO_LIST_FLAG_MACHINE) {
 310                 return "GroupMembership";
 311         }
 312
 313         return talloc_asprintf(mem_ctx, "%s\\%s", sid_string_tos(sid),
 314                                "GroupMembership");
 315 }
 316
 317 /****************************************************************
 318 ****************************************************************/
 319
 320 static WERROR gp_reg_del_groupmembership(TALLOC_CTX *mem_ctx,
 321                                          struct registry_key *key,
 322                                          const struct security_token *token,
 323                                          uint32_t flags)
 324 {
 325         const char *path = NULL;
 326
 327         path = gp_reg_groupmembership_path(mem_ctx, &token->sids[0],
 328                                            flags);
 329         W_ERROR_HAVE_NO_MEMORY(path);
 330
 331         return reg_deletekey_recursive(key, path);
 332
 333 }
 334
 335 /****************************************************************
 336 ****************************************************************/
 337
 338 static WERROR gp_reg_store_groupmembership(TALLOC_CTX *mem_ctx,
 339                                            struct gp_registry_context *reg_ctx,
 340                                            const struct security_token *token,
 341                                            uint32_t flags)
 342 {
 343         struct registry_key *key = NULL;
 344         WERROR werr;
 345         int i = 0;
 346         const char *valname = NULL;
 347         const char *path = NULL;
 348         const char *val = NULL;
 349         int count = 0;
 350
 351         path = gp_reg_groupmembership_path(mem_ctx, &token->sids[0],
 352                                            flags);
 353         W_ERROR_HAVE_NO_MEMORY(path);
 354
 355         gp_reg_del_groupmembership(mem_ctx, reg_ctx->curr_key, token, flags);
 356
 357         werr = gp_store_reg_subkey(mem_ctx, path,
 358                                    reg_ctx->curr_key, &key);
 359         W_ERROR_NOT_OK_RETURN(werr);
 360
 361         for (i=0; i<token->num_sids; i++) {
 362
 363                 valname = talloc_asprintf(mem_ctx, "Group%d", count++);
 364                 W_ERROR_HAVE_NO_MEMORY(valname);
 365
 366                 val = sid_string_talloc(mem_ctx, &token->sids[i]);
 367                 W_ERROR_HAVE_NO_MEMORY(val);
 368                 werr = gp_store_reg_val_sz(mem_ctx, key, valname, val);
 369                 W_ERROR_NOT_OK_RETURN(werr);
 370         }
 371
 372         werr = gp_store_reg_val_dword(mem_ctx, key, "Count", count);
 373         W_ERROR_NOT_OK_RETURN(werr);
 374
 375         return WERR_OK;
 376 }
 377
 378 /****************************************************************
 379 ****************************************************************/
 380 #if 0
 381 /* not used yet */
 382 static WERROR gp_reg_read_groupmembership(TALLOC_CTX *mem_ctx,
 383                                           struct gp_registry_context *reg_ctx,
 384                                           const struct dom_sid *object_sid,
 385                                           struct security_token **token,
 386                                           uint32_t flags)
 387 {
 388         struct registry_key *key = NULL;
 389         WERROR werr;
 390         int i = 0;
 391         const char *valname = NULL;
 392         const char *val = NULL;
 393         const char *path = NULL;
 394         uint32_t count = 0;
 395         int num_token_sids = 0;
 396         struct security_token *tmp_token = NULL;
 397
 398         tmp_token = talloc_zero(mem_ctx, struct security_token);
 399         W_ERROR_HAVE_NO_MEMORY(tmp_token);
 400
 401         path = gp_reg_groupmembership_path(mem_ctx, object_sid, flags);
 402         W_ERROR_HAVE_NO_MEMORY(path);
 403
 404         werr = gp_read_reg_subkey(mem_ctx, reg_ctx, path, &key);
 405         W_ERROR_NOT_OK_RETURN(werr);
 406
 407         werr = gp_read_reg_val_dword(mem_ctx, key, "Count", &count);
 408         W_ERROR_NOT_OK_RETURN(werr);
 409
 410         for (i=0; i<count; i++) {
 411
 412                 valname = talloc_asprintf(mem_ctx, "Group%d", i);
 413                 W_ERROR_HAVE_NO_MEMORY(valname);
 414
 415                 werr = gp_read_reg_val_sz(mem_ctx, key, valname, &val);
 416                 W_ERROR_NOT_OK_RETURN(werr);
 417
 418                 if (!string_to_sid(&tmp_token->sids[num_token_sids++],
 419                                    val)) {
 420                         return WERR_INSUFFICIENT_BUFFER;
 421                 }
 422         }
 423
 424         tmp_token->num_sids = num_token_sids;
 425
 426         *token = tmp_token;
 427
 428         return WERR_OK;
 429 }
 430 #endif
 431 /****************************************************************
 432 ****************************************************************/
 433
 434 static const char *gp_req_state_path(TALLOC_CTX *mem_ctx,
 435                                      const struct dom_sid *sid,
 436                                      uint32_t flags)
 437 {
 438         if (flags & GPO_LIST_FLAG_MACHINE) {
 439                 return GPO_REG_STATE_MACHINE;
 440         }
 441
 442         return talloc_asprintf(mem_ctx, "%s\\%s", "State", sid_string_tos(sid));
 443 }
 444
 445 /****************************************************************
 446 ****************************************************************/
 447
 448 static WERROR gp_del_reg_state(TALLOC_CTX *mem_ctx,
 449                                struct registry_key *key,
 450                                const char *path)
 451 {
 452         return reg_deletesubkeys_recursive(key, path);
 453 }
 454
 455 /****************************************************************
 456 ****************************************************************/
 457
 458 WERROR gp_reg_state_store(TALLOC_CTX *mem_ctx,
 459                           uint32_t flags,
 460                           const char *dn,
 461                           const struct security_token *token,
 462                           struct GROUP_POLICY_OBJECT *gpo_list)
 463 {
 464         struct gp_registry_context *reg_ctx = NULL;
 465         WERROR werr = WERR_GEN_FAILURE;
 466         const char *subkeyname = NULL;
 467         struct GROUP_POLICY_OBJECT *gpo;
 468         int count = 0;
 469         struct registry_key *key;
 470
 471         werr = gp_init_reg_ctx(mem_ctx, KEY_GROUP_POLICY, REG_KEY_WRITE,
 472                                token, &reg_ctx);
 473         W_ERROR_NOT_OK_RETURN(werr);
 474
 475         werr = gp_secure_key(mem_ctx, flags, reg_ctx->curr_key,
 476                              &token->sids[0]);
 477         if (!W_ERROR_IS_OK(werr)) {
 478                 DEBUG(0,("failed to secure key: %s\n", win_errstr(werr)));
 479                 goto done;
 480         }
 481
 482         werr = gp_reg_store_groupmembership(mem_ctx, reg_ctx, token, flags);
 483         if (!W_ERROR_IS_OK(werr)) {
 484                 DEBUG(0,("failed to store group membership: %s\n", win_errstr(werr)));
 485                 goto done;
 486         }
 487
 488         subkeyname = gp_req_state_path(mem_ctx, &token->sids[0], flags);
 489         if (!subkeyname) {
 490                 werr = WERR_NOT_ENOUGH_MEMORY;
 491                 goto done;
 492         }
 493
 494         werr = gp_del_reg_state(mem_ctx, reg_ctx->curr_key, subkeyname);
 495         if (!W_ERROR_IS_OK(werr)) {
 496                 DEBUG(0,("failed to delete old state: %s\n", win_errstr(werr)));
 497                 /* goto done; */
 498         }
 499
 500         werr = gp_store_reg_subkey(mem_ctx, subkeyname,
 501                                    reg_ctx->curr_key, &reg_ctx->curr_key);
 502         if (!W_ERROR_IS_OK(werr)) {
 503                 goto done;
 504         }
 505
 506         werr = gp_store_reg_val_sz(mem_ctx, reg_ctx->curr_key,
 507                                    "Distinguished-Name", dn);
 508         if (!W_ERROR_IS_OK(werr)) {
 509                 goto done;
 510         }
 511
 512         /* store link list */
 513
 514         werr = gp_store_reg_subkey(mem_ctx, "GPLink-List",
 515                                    reg_ctx->curr_key, &key);
 516         if (!W_ERROR_IS_OK(werr)) {
 517                 goto done;
 518         }
 519
 520         /* store gpo list */
 521
 522         werr = gp_store_reg_subkey(mem_ctx, "GPO-List",
 523                                    reg_ctx->curr_key, &reg_ctx->curr_key);
 524         if (!W_ERROR_IS_OK(werr)) {
 525                 goto done;
 526         }
 527
 528         for (gpo = gpo_list; gpo; gpo = gpo->next) {
 529
 530                 subkeyname = talloc_asprintf(mem_ctx, "%d", count++);
 531                 if (!subkeyname) {
 532                         werr = WERR_NOT_ENOUGH_MEMORY;
 533                         goto done;
 534                 }
 535
 536                 werr = gp_store_reg_subkey(mem_ctx, subkeyname,
 537                                            reg_ctx->curr_key, &key);
 538                 if (!W_ERROR_IS_OK(werr)) {
 539                         goto done;
 540                 }
 541
 542                 werr = gp_store_reg_gpovals(mem_ctx, key, gpo);
 543                 if (!W_ERROR_IS_OK(werr)) {
 544                         DEBUG(0,("gp_reg_state_store: "
 545                                 "gp_store_reg_gpovals failed for %s: %s\n",
 546                                 gpo->display_name, win_errstr(werr)));
 547                         goto done;
 548                 }
 549         }
 550  done:
 551         gp_free_reg_ctx(reg_ctx);
 552         return werr;
 553 }
 554
 555 /****************************************************************
 556 ****************************************************************/
 557
 558 static WERROR gp_read_reg_gpovals(TALLOC_CTX *mem_ctx,
 559                                   struct registry_key *key,
 560                                   struct GROUP_POLICY_OBJECT *gpo)
 561 {
 562         WERROR werr;
 563
 564         if (!key || !gpo) {
 565                 return WERR_INVALID_PARAMETER;
 566         }
 567
 568         werr = gp_read_reg_val_dword(mem_ctx, key, "Version",
 569                                      &gpo->version);
 570         W_ERROR_NOT_OK_RETURN(werr);
 571
 572         werr = gp_read_reg_val_dword(mem_ctx, key, "Options",
 573                                      &gpo->options);
 574         W_ERROR_NOT_OK_RETURN(werr);
 575
 576         werr = gp_read_reg_val_sz(mem_ctx, key, "GPOID",
 577                                   &gpo->name);
 578         W_ERROR_NOT_OK_RETURN(werr);
 579
 580         werr = gp_read_reg_val_sz(mem_ctx, key, "SOM",
 581                                   &gpo->link);
 582         W_ERROR_NOT_OK_RETURN(werr);
 583
 584         werr = gp_read_reg_val_sz(mem_ctx, key, "DisplayName",
 585                                   &gpo->display_name);
 586         W_ERROR_NOT_OK_RETURN(werr);
 587
 588         return werr;
 589 }
 590
 591 /****************************************************************
 592 ****************************************************************/
 593
 594 static WERROR gp_read_reg_gpo(TALLOC_CTX *mem_ctx,
 595                               struct registry_key *key,
 596                               struct GROUP_POLICY_OBJECT **gpo_ret)
 597 {
 598         struct GROUP_POLICY_OBJECT *gpo = NULL;
 599         WERROR werr;
 600
 601         if (!gpo_ret || !key) {
 602                 return WERR_INVALID_PARAMETER;
 603         }
 604
 605         gpo = talloc_zero(mem_ctx, struct GROUP_POLICY_OBJECT);
 606         W_ERROR_HAVE_NO_MEMORY(gpo);
 607
 608         werr = gp_read_reg_gpovals(mem_ctx, key, gpo);
 609         W_ERROR_NOT_OK_RETURN(werr);
 610
 611         *gpo_ret = gpo;
 612
 613         return werr;
 614 }
 615
 616 /****************************************************************
 617 ****************************************************************/
 618
 619 WERROR gp_reg_state_read(TALLOC_CTX *mem_ctx,
 620                          uint32_t flags,
 621                          const struct dom_sid *sid,
 622                          struct GROUP_POLICY_OBJECT **gpo_list)
 623 {
 624         struct gp_registry_context *reg_ctx = NULL;
 625         WERROR werr = WERR_GEN_FAILURE;
 626         const char *subkeyname = NULL;
 627         struct GROUP_POLICY_OBJECT *gpo = NULL;
 628         int count = 0;
 629         struct registry_key *key = NULL;
 630         const char *path = NULL;
 631         const char *gp_state_path = NULL;
 632
 633         if (!gpo_list) {
 634                 return WERR_INVALID_PARAMETER;
 635         }
 636
 637         ZERO_STRUCTP(gpo_list);
 638
 639         gp_state_path = gp_req_state_path(mem_ctx, sid, flags);
 640         if (!gp_state_path) {
 641                 werr = WERR_NOT_ENOUGH_MEMORY;
 642                 goto done;
 643         }
 644
 645         path = talloc_asprintf(mem_ctx, "%s\\%s\\%s",
 646                                KEY_GROUP_POLICY,
 647                                gp_state_path,
 648                                "GPO-List");
 649         if (!path) {
 650                 werr = WERR_NOT_ENOUGH_MEMORY;
 651                 goto done;
 652         }
 653
 654         werr = gp_init_reg_ctx(mem_ctx, path, REG_KEY_READ, NULL, &reg_ctx);
 655         if (!W_ERROR_IS_OK(werr)) {
 656                 goto done;
 657         }
 658
 659         while (1) {
 660
 661                 subkeyname = talloc_asprintf(mem_ctx, "%d", count++);
 662                 if (!subkeyname) {
 663                         werr = WERR_NOT_ENOUGH_MEMORY;
 664                         goto done;
 665                 }
 666
 667                 werr = gp_read_reg_subkey(mem_ctx, reg_ctx, subkeyname, &key);
 668                 if (W_ERROR_EQUAL(werr, WERR_FILE_NOT_FOUND)) {
 669                         werr = WERR_OK;
 670                         break;
 671                 }
 672                 if (!W_ERROR_IS_OK(werr)) {
 673                         DEBUG(0,("gp_reg_state_read: "
 674                                 "gp_read_reg_subkey gave: %s\n",
 675                                 win_errstr(werr)));
 676                         goto done;
 677                 }
 678
 679                 werr = gp_read_reg_gpo(mem_ctx, key, &gpo);
 680                 if (!W_ERROR_IS_OK(werr)) {
 681                         goto done;
 682                 }
 683
 684                 DLIST_ADD(*gpo_list, gpo);
 685         }
 686
 687  done:
 688         gp_free_reg_ctx(reg_ctx);
 689         return werr;
 690 }
 691
 692 /****************************************************************
 693 ****************************************************************/
 694
 695 static WERROR gp_reg_generate_sd(TALLOC_CTX *mem_ctx,
 696                                  const struct dom_sid *sid,
 697                                  struct security_descriptor **sd,
 698                                  size_t *sd_size)
 699 {
 700         struct security_ace ace[6];
 701         uint32_t mask;
 702
 703         struct security_acl *theacl = NULL;
 704
 705         uint8_t inherit_flags;
 706
 707         mask = REG_KEY_ALL;
 708         init_sec_ace(&ace[0],
 709                      &global_sid_System,
 710                      SEC_ACE_TYPE_ACCESS_ALLOWED,
 711                      mask, 0);
 712
 713         mask = REG_KEY_ALL;
 714         init_sec_ace(&ace[1],
 715                      &global_sid_Builtin_Administrators,
 716                      SEC_ACE_TYPE_ACCESS_ALLOWED,
 717                      mask, 0);
 718
 719         mask = REG_KEY_READ;
 720         init_sec_ace(&ace[2],
 721                      sid ? sid : &global_sid_Authenticated_Users,
 722                      SEC_ACE_TYPE_ACCESS_ALLOWED,
 723                      mask, 0);
 724
 725         inherit_flags = SEC_ACE_FLAG_OBJECT_INHERIT |
 726                         SEC_ACE_FLAG_CONTAINER_INHERIT |
 727                         SEC_ACE_FLAG_INHERIT_ONLY;
 728
 729         mask = REG_KEY_ALL;
 730         init_sec_ace(&ace[3],
 731                      &global_sid_System,
 732                      SEC_ACE_TYPE_ACCESS_ALLOWED,
 733                      mask, inherit_flags);
 734
 735         mask = REG_KEY_ALL;
 736         init_sec_ace(&ace[4],
 737                      &global_sid_Builtin_Administrators,
 738                      SEC_ACE_TYPE_ACCESS_ALLOWED,
 739                      mask, inherit_flags);
 740
 741         mask = REG_KEY_READ;
 742         init_sec_ace(&ace[5],
 743                      sid ? sid : &global_sid_Authenticated_Users,
 744                      SEC_ACE_TYPE_ACCESS_ALLOWED,
 745                      mask, inherit_flags);
 746
 747         theacl = make_sec_acl(mem_ctx, NT4_ACL_REVISION, 6, ace);
 748         W_ERROR_HAVE_NO_MEMORY(theacl);
 749
 750         *sd = make_sec_desc(mem_ctx, SD_REVISION,
 751                             SEC_DESC_SELF_RELATIVE |
 752                             SEC_DESC_DACL_AUTO_INHERITED | /* really ? */
 753                             SEC_DESC_DACL_AUTO_INHERIT_REQ, /* really ? */
 754                             NULL, NULL, NULL,
 755                             theacl, sd_size);
 756         W_ERROR_HAVE_NO_MEMORY(*sd);
 757
 758         return WERR_OK;
 759 }
 760
 761 /****************************************************************
 762 ****************************************************************/
 763
 764 WERROR gp_secure_key(TALLOC_CTX *mem_ctx,
 765                      uint32_t flags,
 766                      struct registry_key *key,
 767                      const struct dom_sid *sid)
 768 {
 769         struct security_descriptor *sd = NULL;
 770         size_t sd_size = 0;
 771         const struct dom_sid *sd_sid = NULL;
 772         WERROR werr;
 773
 774         if (!(flags & GPO_LIST_FLAG_MACHINE)) {
 775                 sd_sid = sid;
 776         }
 777
 778         werr = gp_reg_generate_sd(mem_ctx, sd_sid, &sd, &sd_size);
 779         W_ERROR_NOT_OK_RETURN(werr);
 780
 781         return reg_setkeysecurity(key, sd);
 782 }
 783
 784 /****************************************************************
 785 ****************************************************************/
 786
 787 void dump_reg_val(int lvl, const char *direction,
 788                   const char *key, const char *subkey,
 789                   struct registry_value *val)
 790 {
 791         int i = 0;
 792         const char *type_str = NULL;
 793
 794         if (!val) {
 795                 DEBUG(lvl,("no val!\n"));
 796                 return;
 797         }
 798
 799         type_str = str_regtype(val->type);
 800
 801         DEBUG(lvl,("\tdump_reg_val:\t%s '%s'\n\t\t\t'%s' %s: ",
 802                 direction, key, subkey, type_str));
 803
 804         switch (val->type) {
 805                 case REG_DWORD: {
 806                         uint32_t v;
 807                         if (val->data.length < 4) {
 808                                 break;
 809                         }
 810                         v = IVAL(val->data.data, 0);
 811                         DEBUG(lvl,("%d (0x%08x)\n",
 812                                 (int)v, v));
 813                         break;
 814                 }
 815                 case REG_QWORD: {
 816                         uint64_t v;
 817                         if (val->data.length < 8) {
 818                                 break;
 819                         }
 820                         v = BVAL(val->data.data, 0);
 821                         DEBUG(lvl,("%d (0x%016llx)\n",
 822                                 (int)v,
 823                                 (unsigned long long)v));
 824                         break;
 825                 }
 826                 case REG_SZ: {
 827                         const char *s;
 828                         if (!pull_reg_sz(talloc_tos(), &val->data, &s)) {
 829                                 break;
 830                         }
 831                         DEBUG(lvl,("%s (length: %d)\n",
 832                                    s, (int)strlen_m(s)));
 833                         break;
 834                 }
 835                 case REG_MULTI_SZ: {
 836                         const char **a;
 837                         if (!pull_reg_multi_sz(talloc_tos(), &val->data, &a)) {
 838                                 break;
 839                         }
 840                         for (i=0; a[i] != NULL; i++) {
 841                                 ;;
 842                         }
 843                         DEBUG(lvl,("(num_strings: %d)\n", i));
 844                         for (i=0; a[i] != NULL; i++) {
 845                                 DEBUGADD(lvl,("\t%s\n", a[i]));
 846                         }
 847                         break;
 848                 }
 849                 case REG_NONE:
 850                         DEBUG(lvl,("\n"));
 851                         break;
 852                 case REG_BINARY:
 853                         dump_data(lvl, val->data.data,
 854                                   val->data.length);
 855                         break;
 856                 default:
 857                         DEBUG(lvl,("unsupported type: %d\n", val->type));
 858                         break;
 859         }
 860 }
 861
 862 /****************************************************************
 863 ****************************************************************/
 864
 865 void dump_reg_entry(uint32_t flags,
 866                     const char *dir,
 867                     struct gp_registry_entry *entry)
 868 {
 869         if (!(flags & GPO_INFO_FLAG_VERBOSE))
 870                 return;
 871
 872         dump_reg_val(1, dir,
 873                      entry->key,
 874                      entry->value,
 875                      entry->data);
 876 }
 877
 878 /****************************************************************
 879 ****************************************************************/
 880
 881 void dump_reg_entries(uint32_t flags,
 882                       const char *dir,
 883                       struct gp_registry_entry *entries,
 884                       size_t num_entries)
 885 {
 886         size_t i;
 887
 888         if (!(flags & GPO_INFO_FLAG_VERBOSE))
 889                 return;
 890
 891         for (i=0; i < num_entries; i++) {
 892                 dump_reg_entry(flags, dir, &entries[i]);
 893         }
 894 }
 895
 896 /****************************************************************
 897 ****************************************************************/
 898
 899 bool add_gp_registry_entry_to_array(TALLOC_CTX *mem_ctx,
 900                                     struct gp_registry_entry *entry,
 901                                     struct gp_registry_entry **entries,
 902                                     size_t *num)
 903 {
 904         *entries = talloc_realloc(mem_ctx, *entries,
 905                                         struct gp_registry_entry,
 906                                         (*num)+1);
 907
 908         if (*entries == NULL) {
 909                 *num = 0;
 910                 return false;
 911         }
 912
 913         (*entries)[*num].action = entry->action;
 914         (*entries)[*num].key = entry->key;
 915         (*entries)[*num].value = entry->value;
 916         (*entries)[*num].data = entry->data;
 917
 918         *num += 1;
 919         return true;
 920 }
 921
 922 /****************************************************************
 923 ****************************************************************/
 924
 925 static const char *gp_reg_action_str(enum gp_reg_action action)
 926 {
 927         switch (action) {
 928                 case GP_REG_ACTION_NONE:
 929                         return "GP_REG_ACTION_NONE";
 930                 case GP_REG_ACTION_ADD_VALUE:
 931                         return "GP_REG_ACTION_ADD_VALUE";
 932                 case GP_REG_ACTION_ADD_KEY:
 933                         return "GP_REG_ACTION_ADD_KEY";
 934                 case GP_REG_ACTION_DEL_VALUES:
 935                         return "GP_REG_ACTION_DEL_VALUES";
 936                 case GP_REG_ACTION_DEL_VALUE:
 937                         return "GP_REG_ACTION_DEL_VALUE";
 938                 case GP_REG_ACTION_DEL_ALL_VALUES:
 939                         return "GP_REG_ACTION_DEL_ALL_VALUES";
 940                 case GP_REG_ACTION_DEL_KEYS:
 941                         return "GP_REG_ACTION_DEL_KEYS";
 942                 case GP_REG_ACTION_SEC_KEY_SET:
 943                         return "GP_REG_ACTION_SEC_KEY_SET";
 944                 case GP_REG_ACTION_SEC_KEY_RESET:
 945                         return "GP_REG_ACTION_SEC_KEY_RESET";
 946                 default:
 947                         return "unknown";
 948         }
 949 }
 950
 951 /****************************************************************
 952 ****************************************************************/
 953
 954 WERROR reg_apply_registry_entry(TALLOC_CTX *mem_ctx,
 955                                 struct registry_key *root_key,
 956                                 struct gp_registry_context *reg_ctx,
 957                                 struct gp_registry_entry *entry,
 958                                 const struct security_token *token,
 959                                 uint32_t flags)
 960 {
 961         WERROR werr;
 962         struct registry_key *key = NULL;
 963
 964         if (flags & GPO_INFO_FLAG_VERBOSE) {
 965                 printf("about to store key:    [%s]\n", entry->key);
 966                 printf("               value:  [%s]\n", entry->value);
 967                 printf("               data:   [%s]\n", str_regtype(entry->data->type));
 968                 printf("               action: [%s]\n", gp_reg_action_str(entry->action));
 969         }
 970
 971         werr = gp_store_reg_subkey(mem_ctx, entry->key,
 972                                    root_key, &key);
 973                                    /* reg_ctx->curr_key, &key); */
 974         if (!W_ERROR_IS_OK(werr)) {
 975                 DEBUG(0,("gp_store_reg_subkey failed: %s\n", win_errstr(werr)));
 976                 return werr;
 977         }
 978
 979         switch (entry->action) {
 980                 case GP_REG_ACTION_NONE:
 981                 case GP_REG_ACTION_ADD_KEY:
 982                         return WERR_OK;
 983
 984                 case GP_REG_ACTION_SEC_KEY_SET:
 985                         werr = gp_secure_key(mem_ctx, flags,
 986                                              key,
 987                                              &token->sids[0]);
 988                         if (!W_ERROR_IS_OK(werr)) {
 989                                 DEBUG(0,("reg_apply_registry_entry: "
 990                                         "gp_secure_key failed: %s\n",
 991                                         win_errstr(werr)));
 992                                 return werr;
 993                         }
 994                         break;
 995                 case GP_REG_ACTION_ADD_VALUE:
 996                         werr = reg_setvalue(key, entry->value, entry->data);
 997                         if (!W_ERROR_IS_OK(werr)) {
 998                                 DEBUG(0,("reg_apply_registry_entry: "
 999                                         "reg_setvalue failed: %s\n",
1000                                         win_errstr(werr)));
1001                                 dump_reg_entry(flags, "STORE", entry);
1002                                 return werr;
1003                         }
1004                         break;
1005                 case GP_REG_ACTION_DEL_VALUE:
1006                         werr = reg_deletevalue(key, entry->value);
1007                         if (!W_ERROR_IS_OK(werr)) {
1008                                 DEBUG(0,("reg_apply_registry_entry: "
1009                                         "reg_deletevalue failed: %s\n",
1010                                         win_errstr(werr)));
1011                                 dump_reg_entry(flags, "STORE", entry);
1012                                 return werr;
1013                         }
1014                         break;
1015                 case GP_REG_ACTION_DEL_ALL_VALUES:
1016                         werr = reg_deleteallvalues(key);
1017                         if (!W_ERROR_IS_OK(werr)) {
1018                                 DEBUG(0,("reg_apply_registry_entry: "
1019                                         "reg_deleteallvalues failed: %s\n",
1020                                         win_errstr(werr)));
1021                                 dump_reg_entry(flags, "STORE", entry);
1022                                 return werr;
1023                         }
1024                         break;
1025                 case GP_REG_ACTION_DEL_VALUES:
1026                 case GP_REG_ACTION_DEL_KEYS:
1027                 case GP_REG_ACTION_SEC_KEY_RESET:
1028                         DEBUG(0,("reg_apply_registry_entry: "
1029                                 "not yet supported: %s (%d)\n",
1030                                 gp_reg_action_str(entry->action),
1031                                 entry->action));
1032                         return WERR_NOT_SUPPORTED;
1033                 default:
1034                         DEBUG(0,("invalid action: %d\n", entry->action));
1035                         return WERR_INVALID_PARAMETER;
1036         }
1037
1038         return werr;
1039 }