source3/rpc_server/srv_winreg_nt.c

   1 /*
   2  *  Unix SMB/CIFS implementation.
   3  *  RPC Pipe client / server routines
   4  *
   5  *  Copyright (C) Gerald Carter                 2002-2006.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 3 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /* Implementation of registry functions. */
  22
  23 #include "includes.h"
  24 #include "../librpc/gen_ndr/srv_winreg.h"
  25 #include "registry/reg_parse_prs.h"
  26 #include "registry.h"
  27 #include "registry/reg_perfcount.h"
  28 #include "rpc_misc.h"
  29
  30 #undef DBGC_CLASS
  31 #define DBGC_CLASS DBGC_RPC_SRV
  32
  33 /******************************************************************
  34  Find a registry key handle and return a struct registry_key *
  35  *****************************************************************/
  36
  37 static struct registry_key *find_regkey_by_hnd(struct pipes_struct *p,
  38                                                struct policy_handle *hnd)
  39 {
  40         struct registry_key *regkey = NULL;
  41
  42         if(!find_policy_by_hnd(p,hnd,(void **)(void *)&regkey)) {
  43                 DEBUG(2,("find_regkey_index_by_hnd: Registry Key not found: "));
  44                 return NULL;
  45         }
  46
  47         return regkey;
  48 }
  49
  50 /*******************************************************************
  51  Function for open a new registry handle and creating a handle
  52  Note that P should be valid & hnd should already have space
  53
  54  When we open a key, we store the full path to the key as
  55  HK[LM|U]\<key>\<key>\...
  56  *******************************************************************/
  57
  58 static WERROR open_registry_key(struct pipes_struct *p,
  59                                 struct policy_handle *hnd,
  60                                 struct registry_key *parent,
  61                                 const char *subkeyname,
  62                                 uint32_t access_desired)
  63 {
  64         WERROR result = WERR_OK;
  65         struct registry_key *key;
  66
  67         if (parent == NULL) {
  68                 result = reg_openhive(p->mem_ctx, subkeyname, access_desired,
  69                                       p->server_info->ptok, &key);
  70         }
  71         else {
  72                 result = reg_openkey(p->mem_ctx, parent, subkeyname,
  73                                      access_desired, &key);
  74         }
  75
  76         if ( !W_ERROR_IS_OK(result) ) {
  77                 return result;
  78         }
  79
  80         if ( !create_policy_hnd( p, hnd, key ) ) {
  81                 return WERR_BADFILE;
  82         }
  83
  84         return WERR_OK;
  85 }
  86
  87 /*******************************************************************
  88  Function for open a new registry handle and creating a handle
  89  Note that P should be valid & hnd should already have space
  90  *******************************************************************/
  91
  92 static bool close_registry_key(struct pipes_struct *p,
  93                                struct policy_handle *hnd)
  94 {
  95         struct registry_key *regkey = find_regkey_by_hnd(p, hnd);
  96
  97         if ( !regkey ) {
  98                 DEBUG(2,("close_registry_key: Invalid handle (%s:%u:%u)\n",
  99                          OUR_HANDLE(hnd)));
 100                 return False;
 101         }
 102
 103         close_policy_hnd(p, hnd);
 104
 105         return True;
 106 }
 107
 108 /********************************************************************
 109  _winreg_CloseKey
 110  ********************************************************************/
 111
 112 WERROR _winreg_CloseKey(struct pipes_struct *p,
 113                         struct winreg_CloseKey *r)
 114 {
 115         /* close the policy handle */
 116
 117         if (!close_registry_key(p, r->in.handle))
 118                 return WERR_BADFID;
 119
 120         ZERO_STRUCTP(r->out.handle);
 121
 122         return WERR_OK;
 123 }
 124
 125 /*******************************************************************
 126  _winreg_OpenHKLM
 127  ********************************************************************/
 128
 129 WERROR _winreg_OpenHKLM(struct pipes_struct *p,
 130                         struct winreg_OpenHKLM *r)
 131 {
 132         return open_registry_key(p, r->out.handle, NULL, KEY_HKLM, r->in.access_mask);
 133 }
 134
 135 /*******************************************************************
 136  _winreg_OpenHKPD
 137  ********************************************************************/
 138
 139 WERROR _winreg_OpenHKPD(struct pipes_struct *p,
 140                         struct winreg_OpenHKPD *r)
 141 {
 142         return open_registry_key(p, r->out.handle, NULL, KEY_HKPD, r->in.access_mask);
 143 }
 144
 145 /*******************************************************************
 146  _winreg_OpenHKPT
 147  ********************************************************************/
 148
 149 WERROR _winreg_OpenHKPT(struct pipes_struct *p,
 150                         struct winreg_OpenHKPT *r)
 151 {
 152         return open_registry_key(p, r->out.handle, NULL, KEY_HKPT, r->in.access_mask);
 153 }
 154
 155 /*******************************************************************
 156  _winreg_OpenHKCR
 157  ********************************************************************/
 158
 159 WERROR _winreg_OpenHKCR(struct pipes_struct *p,
 160                         struct winreg_OpenHKCR *r)
 161 {
 162         return open_registry_key(p, r->out.handle, NULL, KEY_HKCR, r->in.access_mask);
 163 }
 164
 165 /*******************************************************************
 166  _winreg_OpenHKU
 167  ********************************************************************/
 168
 169 WERROR _winreg_OpenHKU(struct pipes_struct *p,
 170                        struct winreg_OpenHKU *r)
 171 {
 172         return open_registry_key(p, r->out.handle, NULL, KEY_HKU, r->in.access_mask);
 173 }
 174
 175 /*******************************************************************
 176  _winreg_OpenHKCU
 177  ********************************************************************/
 178
 179 WERROR _winreg_OpenHKCU(struct pipes_struct *p,
 180                         struct winreg_OpenHKCU *r)
 181 {
 182         return open_registry_key(p, r->out.handle, NULL, KEY_HKCU, r->in.access_mask);
 183 }
 184
 185 /*******************************************************************
 186  _winreg_OpenHKCC
 187  ********************************************************************/
 188
 189 WERROR _winreg_OpenHKCC(struct pipes_struct *p,
 190                         struct winreg_OpenHKCC *r)
 191 {
 192         return open_registry_key(p, r->out.handle, NULL, KEY_HKCC, r->in.access_mask);
 193 }
 194
 195 /*******************************************************************
 196  _winreg_OpenHKDD
 197  ********************************************************************/
 198
 199 WERROR _winreg_OpenHKDD(struct pipes_struct *p,
 200                         struct winreg_OpenHKDD *r)
 201 {
 202         return open_registry_key(p, r->out.handle, NULL, KEY_HKDD, r->in.access_mask);
 203 }
 204
 205 /*******************************************************************
 206  _winreg_OpenHKPN
 207  ********************************************************************/
 208
 209 WERROR _winreg_OpenHKPN(struct pipes_struct *p,
 210                         struct winreg_OpenHKPN *r)
 211 {
 212         return open_registry_key(p, r->out.handle, NULL, KEY_HKPN, r->in.access_mask);
 213 }
 214
 215 /*******************************************************************
 216  _winreg_OpenKey
 217  ********************************************************************/
 218
 219 WERROR _winreg_OpenKey(struct pipes_struct *p,
 220                        struct winreg_OpenKey *r)
 221 {
 222         struct registry_key *parent = find_regkey_by_hnd(p, r->in.parent_handle );
 223
 224         if ( !parent )
 225                 return WERR_BADFID;
 226
 227         return open_registry_key(p, r->out.handle, parent, r->in.keyname.name, r->in.access_mask);
 228 }
 229
 230 /*******************************************************************
 231  _winreg_QueryValue
 232  ********************************************************************/
 233
 234 WERROR _winreg_QueryValue(struct pipes_struct *p,
 235                           struct winreg_QueryValue *r)
 236 {
 237         WERROR        status = WERR_BADFILE;
 238         struct registry_key *regkey = find_regkey_by_hnd( p, r->in.handle );
 239         prs_struct    prs_hkpd;
 240
 241         uint8_t *outbuf = NULL;
 242         uint32_t outbuf_size = 0;
 243
 244         bool free_buf = False;
 245         bool free_prs = False;
 246
 247         if ( !regkey )
 248                 return WERR_BADFID;
 249
 250         if (r->in.value_name->name == NULL) {
 251                 return WERR_INVALID_PARAM;
 252         }
 253
 254         if ((r->out.data_length == NULL) || (r->out.type == NULL) || (r->out.data_size == NULL)) {
 255                 return WERR_INVALID_PARAM;
 256         }
 257
 258         DEBUG(7,("_winreg_QueryValue: policy key name = [%s]\n", regkey->key->name));
 259         DEBUG(7,("_winreg_QueryValue: policy key type = [%08x]\n", regkey->key->type));
 260
 261         /* Handle QueryValue calls on HKEY_PERFORMANCE_DATA */
 262         if(regkey->key->type == REG_KEY_HKPD)
 263         {
 264                 if (strequal(r->in.value_name->name, "Global")) {
 265                         if (!prs_init(&prs_hkpd, *r->in.data_size, p->mem_ctx, MARSHALL))
 266                                 return WERR_NOMEM;
 267                         status = reg_perfcount_get_hkpd(
 268                                 &prs_hkpd, *r->in.data_size, &outbuf_size, NULL);
 269                         outbuf = (uint8_t *)prs_hkpd.data_p;
 270                         free_prs = True;
 271                 }
 272                 else if (strequal(r->in.value_name->name, "Counter 009")) {
 273                         outbuf_size = reg_perfcount_get_counter_names(
 274                                 reg_perfcount_get_base_index(),
 275                                 (char **)(void *)&outbuf);
 276                         free_buf = True;
 277                 }
 278                 else if (strequal(r->in.value_name->name, "Explain 009")) {
 279                         outbuf_size = reg_perfcount_get_counter_help(
 280                                 reg_perfcount_get_base_index(),
 281                                 (char **)(void *)&outbuf);
 282                         free_buf = True;
 283                 }
 284                 else if (isdigit(r->in.value_name->name[0])) {
 285                         /* we probably have a request for a specific object
 286                          * here */
 287                         if (!prs_init(&prs_hkpd, *r->in.data_size, p->mem_ctx, MARSHALL))
 288                                 return WERR_NOMEM;
 289                         status = reg_perfcount_get_hkpd(
 290                                 &prs_hkpd, *r->in.data_size, &outbuf_size,
 291                                 r->in.value_name->name);
 292                         outbuf = (uint8_t *)prs_hkpd.data_p;
 293                         free_prs = True;
 294                 }
 295                 else {
 296                         DEBUG(3,("Unsupported key name [%s] for HKPD.\n",
 297                                  r->in.value_name->name));
 298                         return WERR_BADFILE;
 299                 }
 300
 301                 *r->out.type = REG_BINARY;
 302         }
 303         else {
 304                 struct registry_value *val;
 305
 306                 status = reg_queryvalue(p->mem_ctx, regkey, r->in.value_name->name,
 307                                         &val);
 308                 if (!W_ERROR_IS_OK(status)) {
 309
 310                         DEBUG(10,("_winreg_QueryValue: reg_queryvalue failed with: %s\n",
 311                                 win_errstr(status)));
 312
 313                         if (r->out.data_size) {
 314                                 *r->out.data_size = 0;
 315                         }
 316                         if (r->out.data_length) {
 317                                 *r->out.data_length = 0;
 318                         }
 319                         return status;
 320                 }
 321
 322                 outbuf = val->data.data;
 323                 outbuf_size = val->data.length;
 324                 *r->out.type = val->type;
 325         }
 326
 327         status = WERR_BADFILE;
 328
 329         if (*r->in.data_size < outbuf_size) {
 330                 *r->out.data_size = outbuf_size;
 331                 status = r->in.data ? WERR_MORE_DATA : WERR_OK;
 332         } else {
 333                 *r->out.data_length = outbuf_size;
 334                 *r->out.data_size = outbuf_size;
 335                 if (r->out.data) {
 336                         memcpy(r->out.data, outbuf, outbuf_size);
 337                 }
 338                 status = WERR_OK;
 339         }
 340
 341         if (free_prs) prs_mem_free(&prs_hkpd);
 342         if (free_buf) SAFE_FREE(outbuf);
 343
 344         return status;
 345 }
 346
 347 /*****************************************************************************
 348  _winreg_QueryInfoKey
 349  ****************************************************************************/
 350
 351 WERROR _winreg_QueryInfoKey(struct pipes_struct *p,
 352                             struct winreg_QueryInfoKey *r)
 353 {
 354         WERROR  status = WERR_OK;
 355         struct registry_key *regkey = find_regkey_by_hnd( p, r->in.handle );
 356
 357         if ( !regkey )
 358                 return WERR_BADFID;
 359
 360         r->out.classname->name = NULL;
 361
 362         status = reg_queryinfokey(regkey, r->out.num_subkeys, r->out.max_subkeylen,
 363                                   r->out.max_classlen, r->out.num_values, r->out.max_valnamelen,
 364                                   r->out.max_valbufsize, r->out.secdescsize,
 365                                   r->out.last_changed_time);
 366         if (!W_ERROR_IS_OK(status)) {
 367                 return status;
 368         }
 369
 370         /*
 371          * These calculations account for the registry buffers being
 372          * UTF-16. They are inexact at best, but so far they worked.
 373          */
 374
 375         *r->out.max_subkeylen *= 2;
 376
 377         *r->out.max_valnamelen += 1;
 378         *r->out.max_valnamelen *= 2;
 379
 380         return WERR_OK;
 381 }
 382
 383
 384 /*****************************************************************************
 385  _winreg_GetVersion
 386  ****************************************************************************/
 387
 388 WERROR _winreg_GetVersion(struct pipes_struct *p,
 389                           struct winreg_GetVersion *r)
 390 {
 391         struct registry_key *regkey = find_regkey_by_hnd( p, r->in.handle );
 392
 393         if ( !regkey )
 394                 return WERR_BADFID;
 395
 396         return reg_getversion(r->out.version);
 397 }
 398
 399
 400 /*****************************************************************************
 401  _winreg_EnumKey
 402  ****************************************************************************/
 403
 404 WERROR _winreg_EnumKey(struct pipes_struct *p,
 405                        struct winreg_EnumKey *r)
 406 {
 407         WERROR err = WERR_OK;
 408         struct registry_key *key = find_regkey_by_hnd( p, r->in.handle );
 409
 410         if ( !key )
 411                 return WERR_BADFID;
 412
 413         if ( !r->in.name || !r->in.keyclass )
 414                 return WERR_INVALID_PARAM;
 415
 416         DEBUG(8,("_winreg_EnumKey: enumerating key [%s]\n", key->key->name));
 417
 418         err = reg_enumkey(p->mem_ctx, key, r->in.enum_index, (char **)&r->out.name->name,
 419                           r->out.last_changed_time);
 420         if (!W_ERROR_IS_OK(err)) {
 421                 return err;
 422         }
 423         r->out.keyclass->name = "";
 424         return WERR_OK;
 425 }
 426
 427 /*****************************************************************************
 428  _winreg_EnumValue
 429  ****************************************************************************/
 430
 431 WERROR _winreg_EnumValue(struct pipes_struct *p,
 432                          struct winreg_EnumValue *r)
 433 {
 434         WERROR err = WERR_OK;
 435         struct registry_key *key = find_regkey_by_hnd( p, r->in.handle );
 436         char *valname = NULL;
 437         struct registry_value *val = NULL;
 438
 439         if ( !key )
 440                 return WERR_BADFID;
 441
 442         if ( !r->in.name )
 443                 return WERR_INVALID_PARAM;
 444
 445         DEBUG(8,("_winreg_EnumValue: enumerating values for key [%s]\n",
 446                  key->key->name));
 447
 448         err = reg_enumvalue(p->mem_ctx, key, r->in.enum_index, &valname, &val);
 449         if (!W_ERROR_IS_OK(err)) {
 450                 return err;
 451         }
 452
 453         if (r->out.name != NULL) {
 454                 r->out.name->name = valname;
 455         }
 456
 457         if (r->out.type != NULL) {
 458                 *r->out.type = val->type;
 459         }
 460
 461         if (r->out.value != NULL) {
 462                 if ((r->out.size == NULL) || (r->out.length == NULL)) {
 463                         return WERR_INVALID_PARAM;
 464                 }
 465
 466                 if (val->data.length > *r->out.size) {
 467                         return WERR_MORE_DATA;
 468                 }
 469
 470                 memcpy( r->out.value, val->data.data, val->data.length );
 471         }
 472
 473         if (r->out.length != NULL) {
 474                 *r->out.length = val->data.length;
 475         }
 476         if (r->out.size != NULL) {
 477                 *r->out.size = val->data.length;
 478         }
 479
 480         return WERR_OK;
 481 }
 482
 483 /*******************************************************************
 484  _winreg_InitiateSystemShutdown
 485  ********************************************************************/
 486
 487 WERROR _winreg_InitiateSystemShutdown(struct pipes_struct *p,
 488                                       struct winreg_InitiateSystemShutdown *r)
 489 {
 490         struct winreg_InitiateSystemShutdownEx s;
 491
 492         s.in.hostname = r->in.hostname;
 493         s.in.message = r->in.message;
 494         s.in.timeout = r->in.timeout;
 495         s.in.force_apps = r->in.force_apps;
 496         s.in.do_reboot = r->in.do_reboot;
 497         s.in.reason = 0;
 498
 499         /* thunk down to _winreg_InitiateSystemShutdownEx()
 500            (just returns a status) */
 501
 502         return _winreg_InitiateSystemShutdownEx( p, &s );
 503 }
 504
 505 /*******************************************************************
 506  _winreg_InitiateSystemShutdownEx
 507  ********************************************************************/
 508
 509 #define SHUTDOWN_R_STRING "-r"
 510 #define SHUTDOWN_F_STRING "-f"
 511
 512
 513 WERROR _winreg_InitiateSystemShutdownEx(struct pipes_struct *p,
 514                                         struct winreg_InitiateSystemShutdownEx *r)
 515 {
 516         char *shutdown_script = NULL;
 517         char *msg = NULL;
 518         char *chkmsg = NULL;
 519         fstring str_timeout;
 520         fstring str_reason;
 521         fstring do_reboot;
 522         fstring f;
 523         int ret = -1;
 524         bool can_shutdown = false;
 525
 526         shutdown_script = talloc_strdup(p->mem_ctx, lp_shutdown_script());
 527         if (!shutdown_script) {
 528                 return WERR_NOMEM;
 529         }
 530         if (!*shutdown_script) {
 531                 return WERR_ACCESS_DENIED;
 532         }
 533
 534         /* pull the message string and perform necessary sanity checks on it */
 535
 536         if ( r->in.message && r->in.message->string ) {
 537                 if ( (msg = talloc_strdup(p->mem_ctx, r->in.message->string )) == NULL ) {
 538                         return WERR_NOMEM;
 539                 }
 540                 chkmsg = TALLOC_ARRAY(p->mem_ctx, char, strlen(msg)+1);
 541                 if (!chkmsg) {
 542                         return WERR_NOMEM;
 543                 }
 544                 alpha_strcpy(chkmsg, msg, NULL, strlen(msg)+1);
 545         }
 546
 547         fstr_sprintf(str_timeout, "%d", r->in.timeout);
 548         fstr_sprintf(do_reboot, r->in.do_reboot ? SHUTDOWN_R_STRING : "");
 549         fstr_sprintf(f, r->in.force_apps ? SHUTDOWN_F_STRING : "");
 550         fstr_sprintf(str_reason, "%d", r->in.reason );
 551
 552         shutdown_script = talloc_all_string_sub(p->mem_ctx,
 553                                 shutdown_script, "%z", chkmsg ? chkmsg : "");
 554         if (!shutdown_script) {
 555                 return WERR_NOMEM;
 556         }
 557         shutdown_script = talloc_all_string_sub(p->mem_ctx,
 558                                         shutdown_script, "%t", str_timeout);
 559         if (!shutdown_script) {
 560                 return WERR_NOMEM;
 561         }
 562         shutdown_script = talloc_all_string_sub(p->mem_ctx,
 563                                                 shutdown_script, "%r", do_reboot);
 564         if (!shutdown_script) {
 565                 return WERR_NOMEM;
 566         }
 567         shutdown_script = talloc_all_string_sub(p->mem_ctx,
 568                                                 shutdown_script, "%f", f);
 569         if (!shutdown_script) {
 570                 return WERR_NOMEM;
 571         }
 572         shutdown_script = talloc_all_string_sub(p->mem_ctx,
 573                                         shutdown_script, "%x", str_reason);
 574         if (!shutdown_script) {
 575                 return WERR_NOMEM;
 576         }
 577
 578         can_shutdown = security_token_has_privilege(p->server_info->ptok, SEC_PRIV_REMOTE_SHUTDOWN);
 579
 580         /* IF someone has privs, run the shutdown script as root. OTHERWISE run it as not root
 581            Take the error return from the script and provide it as the Windows return code. */
 582
 583         /********** BEGIN SeRemoteShutdownPrivilege BLOCK **********/
 584
 585         if ( can_shutdown )
 586                 become_root();
 587
 588         ret = smbrun( shutdown_script, NULL );
 589
 590         if ( can_shutdown )
 591                 unbecome_root();
 592
 593         /********** END SeRemoteShutdownPrivilege BLOCK **********/
 594
 595         DEBUG(3,("_reg_shutdown_ex: Running the command `%s' gave %d\n",
 596                 shutdown_script, ret));
 597
 598         return (ret == 0) ? WERR_OK : WERR_ACCESS_DENIED;
 599 }
 600
 601 /*******************************************************************
 602  _winreg_AbortSystemShutdown
 603  ********************************************************************/
 604
 605 WERROR _winreg_AbortSystemShutdown(struct pipes_struct *p,
 606                                    struct winreg_AbortSystemShutdown *r)
 607 {
 608         const char *abort_shutdown_script = lp_abort_shutdown_script();
 609         int ret = -1;
 610         bool can_shutdown = false;
 611
 612         if (!*abort_shutdown_script)
 613                 return WERR_ACCESS_DENIED;
 614
 615         can_shutdown = security_token_has_privilege(p->server_info->ptok, SEC_PRIV_REMOTE_SHUTDOWN);
 616
 617         /********** BEGIN SeRemoteShutdownPrivilege BLOCK **********/
 618
 619         if ( can_shutdown )
 620                 become_root();
 621
 622         ret = smbrun( abort_shutdown_script, NULL );
 623
 624         if ( can_shutdown )
 625                 unbecome_root();
 626
 627         /********** END SeRemoteShutdownPrivilege BLOCK **********/
 628
 629         DEBUG(3,("_winreg_AbortSystemShutdown: Running the command `%s' gave %d\n",
 630                 abort_shutdown_script, ret));
 631
 632         return (ret == 0) ? WERR_OK : WERR_ACCESS_DENIED;
 633 }
 634
 635 /*******************************************************************
 636  ********************************************************************/
 637
 638 static int validate_reg_filename(TALLOC_CTX *ctx, char **pp_fname )
 639 {
 640         char *p = NULL;
 641         int num_services = lp_numservices();
 642         int snum = -1;
 643         const char *share_path = NULL;
 644         char *fname = *pp_fname;
 645
 646         /* convert to a unix path, stripping the C:\ along the way */
 647
 648         if (!(p = valid_share_pathname(ctx, fname))) {
 649                 return -1;
 650         }
 651
 652         /* has to exist within a valid file share */
 653
 654         for (snum=0; snum<num_services; snum++) {
 655                 if (!lp_snum_ok(snum) || lp_print_ok(snum)) {
 656                         continue;
 657                 }
 658
 659                 share_path = lp_pathname(snum);
 660
 661                 /* make sure we have a path (e.g. [homes] ) */
 662                 if (strlen(share_path) == 0) {
 663                         continue;
 664                 }
 665
 666                 if (strncmp(share_path, p, strlen(share_path)) == 0) {
 667                         break;
 668                 }
 669         }
 670
 671         *pp_fname = p;
 672         return (snum < num_services) ? snum : -1;
 673 }
 674
 675 /*******************************************************************
 676  _winreg_RestoreKey
 677  ********************************************************************/
 678
 679 WERROR _winreg_RestoreKey(struct pipes_struct *p,
 680                           struct winreg_RestoreKey *r)
 681 {
 682         struct registry_key *regkey = find_regkey_by_hnd( p, r->in.handle );
 683         char *fname = NULL;
 684         int snum = -1;
 685
 686         if ( !regkey )
 687                 return WERR_BADFID;
 688
 689         if ( !r->in.filename || !r->in.filename->name )
 690                 return WERR_INVALID_PARAM;
 691
 692         fname = talloc_strdup(p->mem_ctx, r->in.filename->name);
 693         if (!fname) {
 694                 return WERR_NOMEM;
 695         }
 696
 697         DEBUG(8,("_winreg_RestoreKey: verifying restore of key [%s] from "
 698                  "\"%s\"\n", regkey->key->name, fname));
 699
 700         if ((snum = validate_reg_filename(p->mem_ctx, &fname)) == -1)
 701                 return WERR_OBJECT_PATH_INVALID;
 702
 703         /* user must posses SeRestorePrivilege for this this proceed */
 704
 705         if ( !security_token_has_privilege(p->server_info->ptok, SEC_PRIV_RESTORE)) {
 706                 return WERR_ACCESS_DENIED;
 707         }
 708
 709         DEBUG(2,("_winreg_RestoreKey: Restoring [%s] from %s in share %s\n",
 710                  regkey->key->name, fname, lp_servicename(snum) ));
 711
 712         return reg_restorekey(regkey, fname);
 713 }
 714
 715 /*******************************************************************
 716  _winreg_SaveKey
 717  ********************************************************************/
 718
 719 WERROR _winreg_SaveKey(struct pipes_struct *p,
 720                        struct winreg_SaveKey *r)
 721 {
 722         struct registry_key *regkey = find_regkey_by_hnd( p, r->in.handle );
 723         char *fname = NULL;
 724         int snum = -1;
 725
 726         if ( !regkey )
 727                 return WERR_BADFID;
 728
 729         if ( !r->in.filename || !r->in.filename->name )
 730                 return WERR_INVALID_PARAM;
 731
 732         fname = talloc_strdup(p->mem_ctx, r->in.filename->name);
 733         if (!fname) {
 734                 return WERR_NOMEM;
 735         }
 736
 737         DEBUG(8,("_winreg_SaveKey: verifying backup of key [%s] to \"%s\"\n",
 738                  regkey->key->name, fname));
 739
 740         if ((snum = validate_reg_filename(p->mem_ctx, &fname)) == -1 )
 741                 return WERR_OBJECT_PATH_INVALID;
 742
 743         DEBUG(2,("_winreg_SaveKey: Saving [%s] to %s in share %s\n",
 744                  regkey->key->name, fname, lp_servicename(snum) ));
 745
 746         return reg_savekey(regkey, fname);
 747 }
 748
 749 /*******************************************************************
 750  _winreg_SaveKeyEx
 751  ********************************************************************/
 752
 753 WERROR _winreg_SaveKeyEx(struct pipes_struct *p,
 754                          struct winreg_SaveKeyEx *r)
 755 {
 756         /* fill in your code here if you think this call should
 757            do anything */
 758
 759         p->rng_fault_state = True;
 760         return WERR_NOT_SUPPORTED;
 761 }
 762
 763 /*******************************************************************
 764  _winreg_CreateKey
 765  ********************************************************************/
 766
 767 WERROR _winreg_CreateKey(struct pipes_struct *p,
 768                          struct winreg_CreateKey *r)
 769 {
 770         struct registry_key *parent = find_regkey_by_hnd(p, r->in.handle);
 771         struct registry_key *new_key = NULL;
 772         WERROR result = WERR_OK;
 773
 774         if ( !parent )
 775                 return WERR_BADFID;
 776
 777         DEBUG(10, ("_winreg_CreateKey called with parent key '%s' and "
 778                    "subkey name '%s'\n", parent->key->name, r->in.name.name));
 779
 780         result = reg_createkey(NULL, parent, r->in.name.name, r->in.access_mask,
 781                                &new_key, r->out.action_taken);
 782         if (!W_ERROR_IS_OK(result)) {
 783                 return result;
 784         }
 785
 786         if (!create_policy_hnd(p, r->out.new_handle, new_key)) {
 787                 TALLOC_FREE(new_key);
 788                 return WERR_BADFILE;
 789         }
 790
 791         return WERR_OK;
 792 }
 793
 794 /*******************************************************************
 795  _winreg_SetValue
 796  ********************************************************************/
 797
 798 WERROR _winreg_SetValue(struct pipes_struct *p,
 799                         struct winreg_SetValue *r)
 800 {
 801         struct registry_key *key = find_regkey_by_hnd(p, r->in.handle);
 802         struct registry_value *val = NULL;
 803
 804         if ( !key )
 805                 return WERR_BADFID;
 806
 807         DEBUG(8,("_winreg_SetValue: Setting value for [%s:%s]\n",
 808                          key->key->name, r->in.name.name));
 809
 810         val = talloc_zero(p->mem_ctx, struct registry_value);
 811         if (val == NULL) {
 812                 return WERR_NOMEM;
 813         }
 814
 815         val->type = r->in.type;
 816         val->data = data_blob_talloc(p->mem_ctx, r->in.data, r->in.size);
 817
 818         return reg_setvalue(key, r->in.name.name, val);
 819 }
 820
 821 /*******************************************************************
 822  _winreg_DeleteKey
 823  ********************************************************************/
 824
 825 WERROR _winreg_DeleteKey(struct pipes_struct *p,
 826                          struct winreg_DeleteKey *r)
 827 {
 828         struct registry_key *parent = find_regkey_by_hnd(p, r->in.handle);
 829
 830         if ( !parent )
 831                 return WERR_BADFID;
 832
 833         return reg_deletekey(parent, r->in.key.name);
 834 }
 835
 836
 837 /*******************************************************************
 838  _winreg_DeleteValue
 839  ********************************************************************/
 840
 841 WERROR _winreg_DeleteValue(struct pipes_struct *p,
 842                            struct winreg_DeleteValue *r)
 843 {
 844         struct registry_key *key = find_regkey_by_hnd(p, r->in.handle);
 845
 846         if ( !key )
 847                 return WERR_BADFID;
 848
 849         return reg_deletevalue(key, r->in.value.name);
 850 }
 851
 852 /*******************************************************************
 853  _winreg_GetKeySecurity
 854  ********************************************************************/
 855
 856 WERROR _winreg_GetKeySecurity(struct pipes_struct *p,
 857                               struct winreg_GetKeySecurity *r)
 858 {
 859         struct registry_key *key = find_regkey_by_hnd(p, r->in.handle);
 860         WERROR err = WERR_OK;
 861         struct security_descriptor *secdesc = NULL;
 862         uint8 *data = NULL;
 863         size_t len = 0;
 864
 865         if ( !key )
 866                 return WERR_BADFID;
 867
 868         /* access checks first */
 869
 870         if ( !(key->key->access_granted & SEC_STD_READ_CONTROL) )
 871                 return WERR_ACCESS_DENIED;
 872
 873         err = reg_getkeysecurity(p->mem_ctx, key, &secdesc);
 874         if (!W_ERROR_IS_OK(err)) {
 875                 return err;
 876         }
 877
 878         err = ntstatus_to_werror(marshall_sec_desc(p->mem_ctx, secdesc,
 879                                                    &data, &len));
 880         if (!W_ERROR_IS_OK(err)) {
 881                 return err;
 882         }
 883
 884         if (len > r->out.sd->size) {
 885                 r->out.sd->size = len;
 886                 return WERR_INSUFFICIENT_BUFFER;
 887         }
 888
 889         r->out.sd->size = len;
 890         r->out.sd->len = len;
 891         r->out.sd->data = data;
 892
 893         return WERR_OK;
 894 }
 895
 896 /*******************************************************************
 897  _winreg_SetKeySecurity
 898  ********************************************************************/
 899
 900 WERROR _winreg_SetKeySecurity(struct pipes_struct *p,
 901                               struct winreg_SetKeySecurity *r)
 902 {
 903         struct registry_key *key = find_regkey_by_hnd(p, r->in.handle);
 904         struct security_descriptor *secdesc = NULL;
 905         WERROR err = WERR_OK;
 906
 907         if ( !key )
 908                 return WERR_BADFID;
 909
 910         /* access checks first */
 911
 912         if ( !(key->key->access_granted & SEC_STD_WRITE_DAC) )
 913                 return WERR_ACCESS_DENIED;
 914
 915         err = ntstatus_to_werror(unmarshall_sec_desc(p->mem_ctx, r->in.sd->data,
 916                                                      r->in.sd->len, &secdesc));
 917         if (!W_ERROR_IS_OK(err)) {
 918                 return err;
 919         }
 920
 921         return reg_setkeysecurity(key, secdesc);
 922 }
 923
 924 /*******************************************************************
 925  _winreg_FlushKey
 926  ********************************************************************/
 927
 928 WERROR _winreg_FlushKey(struct pipes_struct *p,
 929                         struct winreg_FlushKey *r)
 930 {
 931         /* I'm just replying OK because there's not a lot
 932            here I see to do i  --jerry */
 933
 934         return WERR_OK;
 935 }
 936
 937 /*******************************************************************
 938  _winreg_UnLoadKey
 939  ********************************************************************/
 940
 941 WERROR _winreg_UnLoadKey(struct pipes_struct *p,
 942                          struct winreg_UnLoadKey *r)
 943 {
 944         /* fill in your code here if you think this call should
 945            do anything */
 946
 947         p->rng_fault_state = True;
 948         return WERR_NOT_SUPPORTED;
 949 }
 950
 951 /*******************************************************************
 952  _winreg_ReplaceKey
 953  ********************************************************************/
 954
 955 WERROR _winreg_ReplaceKey(struct pipes_struct *p,
 956                           struct winreg_ReplaceKey *r)
 957 {
 958         /* fill in your code here if you think this call should
 959            do anything */
 960
 961         p->rng_fault_state = True;
 962         return WERR_NOT_SUPPORTED;
 963 }
 964
 965 /*******************************************************************
 966  _winreg_LoadKey
 967  ********************************************************************/
 968
 969 WERROR _winreg_LoadKey(struct pipes_struct *p,
 970                        struct winreg_LoadKey *r)
 971 {
 972         /* fill in your code here if you think this call should
 973            do anything */
 974
 975         p->rng_fault_state = True;
 976         return WERR_NOT_SUPPORTED;
 977 }
 978
 979 /*******************************************************************
 980  _winreg_NotifyChangeKeyValue
 981  ********************************************************************/
 982
 983 WERROR _winreg_NotifyChangeKeyValue(struct pipes_struct *p,
 984                                     struct winreg_NotifyChangeKeyValue *r)
 985 {
 986         return WERR_NOT_SUPPORTED;
 987 }
 988
 989 /*******************************************************************
 990  _winreg_QueryMultipleValues
 991  ********************************************************************/
 992
 993 WERROR _winreg_QueryMultipleValues(struct pipes_struct *p,
 994                                    struct winreg_QueryMultipleValues *r)
 995 {
 996         struct winreg_QueryMultipleValues2 r2;
 997         uint32_t needed = 0;
 998
 999         r2.in.key_handle        = r->in.key_handle;
1000         r2.in.values_in         = r->in.values_in;
1001         r2.in.num_values        = r->in.num_values;
1002         r2.in.offered           = r->in.buffer_size;
1003         r2.in.buffer            = r->in.buffer;
1004         r2.out.values_out       = r->out.values_out;
1005         r2.out.needed           = &needed;
1006         r2.out.buffer           = r->out.buffer;
1007
1008         return _winreg_QueryMultipleValues2(p, &r2);
1009 }
1010
1011 /*******************************************************************
1012  ********************************************************************/
1013
1014 static WERROR construct_multiple_entry(TALLOC_CTX *mem_ctx,
1015                                        const char *valuename,
1016                                        uint32_t value_length,
1017                                        uint32_t offset,
1018                                        enum winreg_Type type,
1019                                        struct QueryMultipleValue *r)
1020 {
1021         r->ve_valuename = talloc_zero(mem_ctx, struct winreg_ValNameBuf);
1022         if (r->ve_valuename == NULL) {
1023                 return WERR_NOMEM;
1024         }
1025
1026         r->ve_valuename->name = talloc_strdup(r->ve_valuename, valuename ? valuename : "");
1027         if (r->ve_valuename->name == NULL) {
1028                 return WERR_NOMEM;
1029         }
1030
1031         r->ve_valuename->size = strlen_m_term(r->ve_valuename->name)*2;
1032         r->ve_valuelen = value_length;
1033         r->ve_valueptr = offset;
1034         r->ve_type = type;
1035
1036         return WERR_OK;
1037 }
1038
1039 /*******************************************************************
1040  _winreg_QueryMultipleValues2
1041  ********************************************************************/
1042
1043 WERROR _winreg_QueryMultipleValues2(struct pipes_struct *p,
1044                                     struct winreg_QueryMultipleValues2 *r)
1045 {
1046         struct registry_key *regkey = find_regkey_by_hnd(p, r->in.key_handle);
1047         struct registry_value *vals = NULL;
1048         const char **names = NULL;
1049         uint32_t offset = 0, num_vals = 0;
1050         DATA_BLOB result = data_blob_null;
1051         int i = 0;
1052         WERROR err = WERR_OK;
1053
1054         if (!regkey) {
1055                 return WERR_BADFID;
1056         }
1057
1058         names = talloc_zero_array(p->mem_ctx, const char *, r->in.num_values);
1059         if (names == NULL) {
1060                 return WERR_NOMEM;
1061         }
1062
1063         for (i=0; i < r->in.num_values; i++) {
1064                 if (r->in.values_in[i].ve_valuename &&
1065                     r->in.values_in[i].ve_valuename->name) {
1066                         names[i] = talloc_strdup(names,
1067                                 r->in.values_in[i].ve_valuename->name);
1068                         if (names[i] == NULL) {
1069                                 return WERR_NOMEM;
1070                         }
1071                 }
1072         }
1073
1074         err = reg_querymultiplevalues(p->mem_ctx, regkey,
1075                                       r->in.num_values, names,
1076                                       &num_vals, &vals);
1077         if (!W_ERROR_IS_OK(err)) {
1078                 return err;
1079         }
1080
1081         result = data_blob_talloc(p->mem_ctx, NULL, 0);
1082
1083         for (i=0; i < r->in.num_values; i++) {
1084                 const char *valuename = NULL;
1085
1086                 if (vals[i].data.length > 0) {
1087                         if (!data_blob_append(p->mem_ctx, &result,
1088                                               vals[i].data.data,
1089                                               vals[i].data.length)) {
1090                                 return WERR_NOMEM;
1091                         }
1092                 }
1093
1094                 if (r->in.values_in[i].ve_valuename &&
1095                     r->in.values_in[i].ve_valuename->name) {
1096                         valuename = r->in.values_in[i].ve_valuename->name;
1097                 }
1098
1099                 err = construct_multiple_entry(r->out.values_out,
1100                                                valuename,
1101                                                vals[i].data.length,
1102                                                offset,
1103                                                vals[i].type,
1104                                                &r->out.values_out[i]);
1105                 if (!W_ERROR_IS_OK(err)) {
1106                         return err;
1107                 }
1108
1109                 offset += vals[i].data.length;
1110         }
1111
1112         *r->out.needed = result.length;
1113
1114         if (r->in.num_values != num_vals) {
1115                 return WERR_BADFILE;
1116         }
1117
1118         if (*r->in.offered >= *r->out.needed) {
1119                 if (r->out.buffer) {
1120                         memcpy(r->out.buffer, result.data, MIN(result.length, *r->in.offered));
1121                 }
1122                 return WERR_OK;
1123         } else {
1124                 return WERR_MORE_DATA;
1125         }
1126 }
1127
1128 /*******************************************************************
1129  _winreg_DeleteKeyEx
1130  ********************************************************************/
1131
1132 WERROR _winreg_DeleteKeyEx(struct pipes_struct *p,
1133                            struct winreg_DeleteKeyEx *r)
1134 {
1135         /* fill in your code here if you think this call should
1136            do anything */
1137
1138         p->rng_fault_state = True;
1139         return WERR_NOT_SUPPORTED;
1140 }