source3/rpc_client/cli_lsarpc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    RPC pipe client
   4    Copyright (C) Tim Potter                        2000-2001,
   5    Copyright (C) Andrew Tridgell              1992-1997,2000,
   6    Copyright (C) Rafal Szczesniak                       2002
   7    Copyright (C) Jeremy Allison                         2005.
   8    Copyright (C) Michael Adam                           2007.
   9    Copyright (C) Guenther Deschner                      2008.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 */
  24
  25 #include "includes.h"
  26
  27 /** @defgroup lsa LSA - Local Security Architecture
  28  *  @ingroup rpc_client
  29  *
  30  * @{
  31  **/
  32
  33 /**
  34  * @file cli_lsarpc.c
  35  *
  36  * RPC client routines for the LSA RPC pipe.  LSA means "local
  37  * security authority", which is half of a password database.
  38  **/
  39
  40 /** Open a LSA policy handle
  41  *
  42  * @param cli Handle on an initialised SMB connection */
  43
  44 NTSTATUS rpccli_lsa_open_policy(struct rpc_pipe_client *cli,
  45                                 TALLOC_CTX *mem_ctx,
  46                                 bool sec_qos, uint32 des_access,
  47                                 POLICY_HND *pol)
  48 {
  49         struct lsa_ObjectAttribute attr;
  50         struct lsa_QosInfo qos;
  51         uint16_t system_name = '\\';
  52
  53         if (sec_qos) {
  54                 init_lsa_sec_qos(&qos, 0xc, 2, 1, 0);
  55                 init_lsa_obj_attr(&attr,
  56                                   0x18,
  57                                   NULL,
  58                                   NULL,
  59                                   0,
  60                                   NULL,
  61                                   &qos);
  62         } else {
  63                 init_lsa_obj_attr(&attr,
  64                                   0x18,
  65                                   NULL,
  66                                   NULL,
  67                                   0,
  68                                   NULL,
  69                                   NULL);
  70         }
  71
  72         return rpccli_lsa_OpenPolicy(cli, mem_ctx,
  73                                      &system_name,
  74                                      &attr,
  75                                      des_access,
  76                                      pol);
  77 }
  78
  79 /** Open a LSA policy handle
  80   *
  81   * @param cli Handle on an initialised SMB connection
  82   */
  83
  84 NTSTATUS rpccli_lsa_open_policy2(struct rpc_pipe_client *cli,
  85                                  TALLOC_CTX *mem_ctx, bool sec_qos,
  86                                  uint32 des_access, POLICY_HND *pol)
  87 {
  88         struct lsa_ObjectAttribute attr;
  89         struct lsa_QosInfo qos;
  90
  91         if (sec_qos) {
  92                 init_lsa_sec_qos(&qos, 0xc, 2, 1, 0);
  93                 init_lsa_obj_attr(&attr,
  94                                   0x18,
  95                                   NULL,
  96                                   NULL,
  97                                   0,
  98                                   NULL,
  99                                   &qos);
 100         } else {
 101                 init_lsa_obj_attr(&attr,
 102                                   0x18,
 103                                   NULL,
 104                                   NULL,
 105                                   0,
 106                                   NULL,
 107                                   NULL);
 108         }
 109
 110         return rpccli_lsa_OpenPolicy2(cli, mem_ctx,
 111                                       cli->cli->srv_name_slash,
 112                                       &attr,
 113                                       des_access,
 114                                       pol);
 115 }
 116
 117 /* Lookup a list of sids
 118  *
 119  * internal version withOUT memory allocation of the target arrays.
 120  * this assumes suffciently sized arrays to store domains, names and types. */
 121
 122 static NTSTATUS rpccli_lsa_lookup_sids_noalloc(struct rpc_pipe_client *cli,
 123                                                TALLOC_CTX *mem_ctx,
 124                                                POLICY_HND *pol,
 125                                                int num_sids,
 126                                                const DOM_SID *sids,
 127                                                char **domains,
 128                                                char **names,
 129                                                enum lsa_SidType *types)
 130 {
 131         NTSTATUS result = NT_STATUS_OK;
 132         TALLOC_CTX *tmp_ctx = NULL;
 133         int i;
 134         struct lsa_SidArray sid_array;
 135         struct lsa_RefDomainList *ref_domains = NULL;
 136         struct lsa_TransNameArray lsa_names;
 137         uint32_t count = 0;
 138         uint16_t level = 1;
 139
 140         ZERO_STRUCT(lsa_names);
 141
 142         tmp_ctx = talloc_new(mem_ctx);
 143         if (!tmp_ctx) {
 144                 DEBUG(0, ("rpccli_lsa_lookup_sids_noalloc: out of memory!\n"));
 145                 result = NT_STATUS_UNSUCCESSFUL;
 146                 goto done;
 147         }
 148
 149         sid_array.num_sids = num_sids;
 150         sid_array.sids = TALLOC_ARRAY(mem_ctx, struct lsa_SidPtr, num_sids);
 151         if (!sid_array.sids) {
 152                 return NT_STATUS_NO_MEMORY;
 153         }
 154
 155         for (i = 0; i<num_sids; i++) {
 156                 sid_array.sids[i].sid = sid_dup_talloc(mem_ctx, &sids[i]);
 157                 if (!sid_array.sids[i].sid) {
 158                         return NT_STATUS_NO_MEMORY;
 159                 }
 160         }
 161
 162         result = rpccli_lsa_LookupSids(cli, mem_ctx,
 163                                        pol,
 164                                        &sid_array,
 165                                        &ref_domains,
 166                                        &lsa_names,
 167                                        level,
 168                                        &count);
 169
 170         DEBUG(10, ("LSA_LOOKUPSIDS returned '%s', mapped count = %d'\n",
 171                    nt_errstr(result), count));
 172
 173         if (!NT_STATUS_IS_OK(result) &&
 174             !NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) &&
 175             !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED))
 176         {
 177                 /* An actual error occured */
 178                 goto done;
 179         }
 180
 181         /* Return output parameters */
 182
 183         if (NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) ||
 184             (count == 0))
 185         {
 186                 for (i = 0; i < num_sids; i++) {
 187                         (names)[i] = NULL;
 188                         (domains)[i] = NULL;
 189                         (types)[i] = SID_NAME_UNKNOWN;
 190                 }
 191                 result = NT_STATUS_NONE_MAPPED;
 192                 goto done;
 193         }
 194
 195         for (i = 0; i < num_sids; i++) {
 196                 const char *name, *dom_name;
 197                 uint32_t dom_idx = lsa_names.names[i].sid_index;
 198
 199                 /* Translate optimised name through domain index array */
 200
 201                 if (dom_idx != 0xffffffff) {
 202
 203                         dom_name = ref_domains->domains[dom_idx].name.string;
 204                         name = lsa_names.names[i].name.string;
 205
 206                         (names)[i] = talloc_strdup(mem_ctx, name);
 207                         (domains)[i] = talloc_strdup(mem_ctx, dom_name);
 208                         (types)[i] = lsa_names.names[i].sid_type;
 209
 210                         if (((names)[i] == NULL) || ((domains)[i] == NULL)) {
 211                                 DEBUG(0, ("cli_lsa_lookup_sids_noalloc(): out of memory\n"));
 212                                 result = NT_STATUS_UNSUCCESSFUL;
 213                                 goto done;
 214                         }
 215
 216                 } else {
 217                         (names)[i] = NULL;
 218                         (domains)[i] = NULL;
 219                         (types)[i] = SID_NAME_UNKNOWN;
 220                 }
 221         }
 222
 223 done:
 224         TALLOC_FREE(tmp_ctx);
 225         return result;
 226 }
 227
 228 /* Lookup a list of sids
 229  *
 230  * do it the right way: there is a limit (of 20480 for w2k3) entries
 231  * returned by this call. when the sids list contains more entries,
 232  * empty lists are returned. This version of lsa_lookup_sids passes
 233  * the list of sids in hunks of LOOKUP_SIDS_HUNK_SIZE to the lsa call. */
 234
 235 /* This constant defines the limit of how many sids to look up
 236  * in one call (maximum). the limit from the server side is
 237  * at 20480 for win2k3, but we keep it at a save 1000 for now. */
 238 #define LOOKUP_SIDS_HUNK_SIZE 1000
 239
 240 NTSTATUS rpccli_lsa_lookup_sids(struct rpc_pipe_client *cli,
 241                                 TALLOC_CTX *mem_ctx,
 242                                 POLICY_HND *pol,
 243                                 int num_sids,
 244                                 const DOM_SID *sids,
 245                                 char ***pdomains,
 246                                 char ***pnames,
 247                                 enum lsa_SidType **ptypes)
 248 {
 249         NTSTATUS result = NT_STATUS_OK;
 250         int sids_left = 0;
 251         int sids_processed = 0;
 252         const DOM_SID *hunk_sids = sids;
 253         char **hunk_domains;
 254         char **hunk_names;
 255         enum lsa_SidType *hunk_types;
 256         char **domains = NULL;
 257         char **names = NULL;
 258         enum lsa_SidType *types = NULL;
 259
 260         if (num_sids) {
 261                 if (!(domains = TALLOC_ARRAY(mem_ctx, char *, num_sids))) {
 262                         DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n"));
 263                         result = NT_STATUS_NO_MEMORY;
 264                         goto fail;
 265                 }
 266
 267                 if (!(names = TALLOC_ARRAY(mem_ctx, char *, num_sids))) {
 268                         DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n"));
 269                         result = NT_STATUS_NO_MEMORY;
 270                         goto fail;
 271                 }
 272
 273                 if (!(types = TALLOC_ARRAY(mem_ctx, enum lsa_SidType, num_sids))) {
 274                         DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n"));
 275                         result = NT_STATUS_NO_MEMORY;
 276                         goto fail;
 277                 }
 278         }
 279
 280         sids_left = num_sids;
 281         hunk_domains = domains;
 282         hunk_names = names;
 283         hunk_types = types;
 284
 285         while (sids_left > 0) {
 286                 int hunk_num_sids;
 287                 NTSTATUS hunk_result = NT_STATUS_OK;
 288
 289                 hunk_num_sids = ((sids_left > LOOKUP_SIDS_HUNK_SIZE)
 290                                 ? LOOKUP_SIDS_HUNK_SIZE
 291                                 : sids_left);
 292
 293                 DEBUG(10, ("rpccli_lsa_lookup_sids: processing items "
 294                            "%d -- %d of %d.\n",
 295                            sids_processed,
 296                            sids_processed + hunk_num_sids - 1,
 297                            num_sids));
 298
 299                 hunk_result = rpccli_lsa_lookup_sids_noalloc(cli,
 300                                                              mem_ctx,
 301                                                              pol,
 302                                                              hunk_num_sids,
 303                                                              hunk_sids,
 304                                                              hunk_domains,
 305                                                              hunk_names,
 306                                                              hunk_types);
 307
 308                 if (!NT_STATUS_IS_OK(hunk_result) &&
 309                     !NT_STATUS_EQUAL(hunk_result, STATUS_SOME_UNMAPPED) &&
 310                     !NT_STATUS_EQUAL(hunk_result, NT_STATUS_NONE_MAPPED))
 311                 {
 312                         /* An actual error occured */
 313                         result = hunk_result;
 314                         goto fail;
 315                 }
 316
 317                 /* adapt overall result */
 318                 if (( NT_STATUS_IS_OK(result) &&
 319                      !NT_STATUS_IS_OK(hunk_result))
 320                     ||
 321                     ( NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) &&
 322                      !NT_STATUS_EQUAL(hunk_result, NT_STATUS_NONE_MAPPED)))
 323                 {
 324                         result = STATUS_SOME_UNMAPPED;
 325                 }
 326
 327                 sids_left -= hunk_num_sids;
 328                 sids_processed += hunk_num_sids; /* only used in DEBUG */
 329                 hunk_sids += hunk_num_sids;
 330                 hunk_domains += hunk_num_sids;
 331                 hunk_names += hunk_num_sids;
 332                 hunk_types += hunk_num_sids;
 333         }
 334
 335         *pdomains = domains;
 336         *pnames = names;
 337         *ptypes = types;
 338         return result;
 339
 340 fail:
 341         TALLOC_FREE(domains);
 342         TALLOC_FREE(names);
 343         TALLOC_FREE(types);
 344         return result;
 345 }
 346
 347 /** Lookup a list of names */
 348
 349 NTSTATUS rpccli_lsa_lookup_names(struct rpc_pipe_client *cli,
 350                                  TALLOC_CTX *mem_ctx,
 351                                  POLICY_HND *pol, int num_names,
 352                                  const char **names,
 353                                  const char ***dom_names,
 354                                  int level,
 355                                  DOM_SID **sids,
 356                                  enum lsa_SidType **types)
 357 {
 358         NTSTATUS result;
 359         int i;
 360         struct lsa_String *lsa_names = NULL;
 361         struct lsa_RefDomainList *domains = NULL;
 362         struct lsa_TransSidArray sid_array;
 363         uint32_t count = 0;
 364
 365         ZERO_STRUCT(sid_array);
 366
 367         lsa_names = TALLOC_ARRAY(mem_ctx, struct lsa_String, num_names);
 368         if (!lsa_names) {
 369                 return NT_STATUS_NO_MEMORY;
 370         }
 371
 372         for (i=0; i<num_names; i++) {
 373                 init_lsa_String(&lsa_names[i], names[i]);
 374         }
 375
 376         result = rpccli_lsa_LookupNames(cli, mem_ctx,
 377                                         pol,
 378                                         num_names,
 379                                         lsa_names,
 380                                         &domains,
 381                                         &sid_array,
 382                                         level,
 383                                         &count);
 384
 385         if (!NT_STATUS_IS_OK(result) && NT_STATUS_V(result) !=
 386             NT_STATUS_V(STATUS_SOME_UNMAPPED)) {
 387
 388                 /* An actual error occured */
 389
 390                 goto done;
 391         }
 392
 393         /* Return output parameters */
 394
 395         if (count == 0) {
 396                 result = NT_STATUS_NONE_MAPPED;
 397                 goto done;
 398         }
 399
 400         if (num_names) {
 401                 if (!((*sids = TALLOC_ARRAY(mem_ctx, DOM_SID, num_names)))) {
 402                         DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n"));
 403                         result = NT_STATUS_NO_MEMORY;
 404                         goto done;
 405                 }
 406
 407                 if (!((*types = TALLOC_ARRAY(mem_ctx, enum lsa_SidType, num_names)))) {
 408                         DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n"));
 409                         result = NT_STATUS_NO_MEMORY;
 410                         goto done;
 411                 }
 412
 413                 if (dom_names != NULL) {
 414                         *dom_names = TALLOC_ARRAY(mem_ctx, const char *, num_names);
 415                         if (*dom_names == NULL) {
 416                                 DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n"));
 417                                 result = NT_STATUS_NO_MEMORY;
 418                                 goto done;
 419                         }
 420                 }
 421         } else {
 422                 *sids = NULL;
 423                 *types = NULL;
 424                 if (dom_names != NULL) {
 425                         *dom_names = NULL;
 426                 }
 427         }
 428
 429         for (i = 0; i < num_names; i++) {
 430                 uint32_t dom_idx = sid_array.sids[i].sid_index;
 431                 uint32_t dom_rid = sid_array.sids[i].rid;
 432                 DOM_SID *sid = &(*sids)[i];
 433
 434                 /* Translate optimised sid through domain index array */
 435
 436                 if (dom_idx == 0xffffffff) {
 437                         /* Nothing to do, this is unknown */
 438                         ZERO_STRUCTP(sid);
 439                         (*types)[i] = SID_NAME_UNKNOWN;
 440                         continue;
 441                 }
 442
 443                 sid_copy(sid, domains->domains[dom_idx].sid);
 444
 445                 if (dom_rid != 0xffffffff) {
 446                         sid_append_rid(sid, dom_rid);
 447                 }
 448
 449                 (*types)[i] = sid_array.sids[i].sid_type;
 450
 451                 if (dom_names == NULL) {
 452                         continue;
 453                 }
 454
 455                 (*dom_names)[i] = domains->domains[dom_idx].name.string;
 456         }
 457
 458  done:
 459
 460         return result;
 461 }
 462
 463 #if 0
 464
 465 /** An example of how to use the routines in this file.  Fetch a DOMAIN
 466     sid. Does complete cli setup / teardown anonymously. */
 467
 468 bool fetch_domain_sid( char *domain, char *remote_machine, DOM_SID *psid)
 469 {
 470         struct cli_state cli;
 471         NTSTATUS result;
 472         POLICY_HND lsa_pol;
 473         bool ret = False;
 474
 475         ZERO_STRUCT(cli);
 476         if(cli_initialise(&cli) == False) {
 477                 DEBUG(0,("fetch_domain_sid: unable to initialize client connection.\n"));
 478                 return False;
 479         }
 480
 481         if(!resolve_name( remote_machine, &cli.dest_ip, 0x20)) {
 482                 DEBUG(0,("fetch_domain_sid: Can't resolve address for %s\n", remote_machine));
 483                 goto done;
 484         }
 485
 486         if (!cli_connect(&cli, remote_machine, &cli.dest_ip)) {
 487                 DEBUG(0,("fetch_domain_sid: unable to connect to SMB server on \
 488 machine %s. Error was : %s.\n", remote_machine, cli_errstr(&cli) ));
 489                 goto done;
 490         }
 491
 492         if (!attempt_netbios_session_request(&cli, global_myname(), remote_machine, &cli.dest_ip)) {
 493                 DEBUG(0,("fetch_domain_sid: machine %s rejected the NetBIOS session request.\n",
 494                         remote_machine));
 495                 goto done;
 496         }
 497
 498         cli.protocol = PROTOCOL_NT1;
 499
 500         if (!cli_negprot(&cli)) {
 501                 DEBUG(0,("fetch_domain_sid: machine %s rejected the negotiate protocol. \
 502 Error was : %s.\n", remote_machine, cli_errstr(&cli) ));
 503                 goto done;
 504         }
 505
 506         if (cli.protocol != PROTOCOL_NT1) {
 507                 DEBUG(0,("fetch_domain_sid: machine %s didn't negotiate NT protocol.\n",
 508                         remote_machine));
 509                 goto done;
 510         }
 511
 512         /*
 513          * Do an anonymous session setup.
 514          */
 515
 516         if (!cli_session_setup(&cli, "", "", 0, "", 0, "")) {
 517                 DEBUG(0,("fetch_domain_sid: machine %s rejected the session setup. \
 518 Error was : %s.\n", remote_machine, cli_errstr(&cli) ));
 519                 goto done;
 520         }
 521
 522         if (!(cli.sec_mode & NEGOTIATE_SECURITY_USER_LEVEL)) {
 523                 DEBUG(0,("fetch_domain_sid: machine %s isn't in user level security mode\n",
 524                         remote_machine));
 525                 goto done;
 526         }
 527
 528         if (!cli_send_tconX(&cli, "IPC$", "IPC", "", 1)) {
 529                 DEBUG(0,("fetch_domain_sid: machine %s rejected the tconX on the IPC$ share. \
 530 Error was : %s.\n", remote_machine, cli_errstr(&cli) ));
 531                 goto done;
 532         }
 533
 534         /* Fetch domain sid */
 535
 536         if (!cli_nt_session_open(&cli, PI_LSARPC)) {
 537                 DEBUG(0, ("fetch_domain_sid: Error connecting to SAM pipe\n"));
 538                 goto done;
 539         }
 540
 541         result = cli_lsa_open_policy(&cli, cli.mem_ctx, True, SEC_RIGHTS_QUERY_VALUE, &lsa_pol);
 542         if (!NT_STATUS_IS_OK(result)) {
 543                 DEBUG(0, ("fetch_domain_sid: Error opening lsa policy handle. %s\n",
 544                         nt_errstr(result) ));
 545                 goto done;
 546         }
 547
 548         result = cli_lsa_query_info_policy(&cli, cli.mem_ctx, &lsa_pol, 5, domain, psid);
 549         if (!NT_STATUS_IS_OK(result)) {
 550                 DEBUG(0, ("fetch_domain_sid: Error querying lsa policy handle. %s\n",
 551                         nt_errstr(result) ));
 552                 goto done;
 553         }
 554
 555         ret = True;
 556
 557   done:
 558
 559         cli_shutdown(&cli);
 560         return ret;
 561 }
 562
 563 #endif