source3/winbindd/winbindd_rpc.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  *
   4  * Winbind rpc backend functions
   5  *
   6  * Copyright (c) 2000-2003 Tim Potter
   7  * Copyright (c) 2001      Andrew Tridgell
   8  * Copyright (c) 2005      Volker Lendecke
   9  * Copyright (c) 2008      Guenther Deschner (pidl conversion)
  10  * Copyright (c) 2010      Andreas Schneider <asn@samba.org>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 3 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24  */
  25
  26 #include "includes.h"
  27 #include "winbindd.h"
  28 #include "winbindd_rpc.h"
  29 #include "rpc_client/rpc_client.h"
  30 #include "librpc/gen_ndr/ndr_samr_c.h"
  31 #include "librpc/gen_ndr/ndr_lsa_c.h"
  32 #include "rpc_client/cli_samr.h"
  33 #include "rpc_client/cli_lsarpc.h"
  34 #include "../libcli/security/security.h"
  35 #include "lsa.h"
  36
  37 /* Query display info for a domain */
  38 NTSTATUS rpc_query_user_list(TALLOC_CTX *mem_ctx,
  39                              struct rpc_pipe_client *samr_pipe,
  40                              struct policy_handle *samr_policy,
  41                              const struct dom_sid *domain_sid,
  42                              uint32_t **prids)
  43 {
  44         struct dcerpc_binding_handle *b = samr_pipe->binding_handle;
  45         uint32_t *rids = NULL;
  46         uint32_t num_rids = 0;
  47         uint32_t i = 0;
  48         uint32_t resume_handle = 0;
  49         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
  50         NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
  51         TALLOC_CTX *tmp_ctx;
  52
  53         *prids = NULL;
  54
  55         tmp_ctx = talloc_stackframe();
  56         if (tmp_ctx == NULL) {
  57                 return NT_STATUS_NO_MEMORY;
  58         }
  59
  60         do {
  61                 struct samr_SamArray *sam_array = NULL;
  62                 uint32_t count = 0;
  63                 uint32_t *tmp;
  64
  65                 status = dcerpc_samr_EnumDomainUsers(
  66                         b, tmp_ctx, samr_policy, &resume_handle,
  67                         ACB_NORMAL, &sam_array, 0xffff, &count, &result);
  68                 if (!NT_STATUS_IS_OK(status)) {
  69                         goto done;
  70                 }
  71                 if (!NT_STATUS_IS_OK(result)) {
  72                         if (!NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
  73                                 DBG_WARNING("EnumDomainUsers failed: %s\n",
  74                                             nt_errstr(result));
  75                                 status = result;
  76                                 goto done;
  77                         }
  78                 }
  79
  80                 if (num_rids + count < num_rids) {
  81                         status = NT_STATUS_INTEGER_OVERFLOW;
  82                         goto done;
  83                 }
  84
  85                 tmp = talloc_realloc(tmp_ctx, rids, uint32_t, num_rids+count);
  86                 if (tmp == NULL) {
  87                         status = NT_STATUS_NO_MEMORY;
  88                         goto done;
  89                 }
  90                 rids = tmp;
  91
  92                 for (i=0; i<count; i++) {
  93                         rids[num_rids++] = sam_array->entries[i].idx;
  94                 }
  95
  96                 TALLOC_FREE(sam_array);
  97         } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
  98
  99         *prids = talloc_steal(mem_ctx, rids);
 100         status = NT_STATUS_OK;
 101
 102 done:
 103         TALLOC_FREE(tmp_ctx);
 104         return status;
 105 }
 106
 107 /* List all domain groups */
 108 NTSTATUS rpc_enum_dom_groups(TALLOC_CTX *mem_ctx,
 109                              struct rpc_pipe_client *samr_pipe,
 110                              struct policy_handle *samr_policy,
 111                              uint32_t *pnum_info,
 112                              struct wb_acct_info **pinfo)
 113 {
 114         struct wb_acct_info *info = NULL;
 115         uint32_t start = 0;
 116         uint32_t num_info = 0;
 117         NTSTATUS status, result;
 118         struct dcerpc_binding_handle *b = samr_pipe->binding_handle;
 119
 120         *pnum_info = 0;
 121
 122         do {
 123                 struct samr_SamArray *sam_array = NULL;
 124                 uint32_t count = 0;
 125                 uint32_t g;
 126
 127                 /* start is updated by this call. */
 128                 status = dcerpc_samr_EnumDomainGroups(b,
 129                                                       mem_ctx,
 130                                                       samr_policy,
 131                                                       &start,
 132                                                       &sam_array,
 133                                                       0xFFFF, /* buffer size? */
 134                                                       &count,
 135                                                       &result);
 136                 if (!NT_STATUS_IS_OK(status)) {
 137                         return status;
 138                 }
 139                 if (!NT_STATUS_IS_OK(result)) {
 140                         if (!NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
 141                                 DEBUG(2,("query_user_list: failed to enum domain groups: %s\n",
 142                                          nt_errstr(result)));
 143                                 return result;
 144                         }
 145                 }
 146
 147                 info = talloc_realloc(mem_ctx,
 148                                             info,
 149                                             struct wb_acct_info,
 150                                             num_info + count);
 151                 if (info == NULL) {
 152                         return NT_STATUS_NO_MEMORY;
 153                 }
 154
 155                 for (g = 0; g < count; g++) {
 156                         struct wb_acct_info *i = &info[num_info + g];
 157
 158                         i->acct_name = talloc_strdup(info,
 159                                 sam_array->entries[g].name.string);
 160                         if (i->acct_name == NULL) {
 161                                 TALLOC_FREE(info);
 162                                 return NT_STATUS_NO_MEMORY;
 163                         }
 164                         i->acct_desc = NULL;
 165                         i->rid = sam_array->entries[g].idx;
 166                 }
 167
 168                 num_info += count;
 169         } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
 170
 171         *pnum_info = num_info;
 172         *pinfo = info;
 173
 174         return NT_STATUS_OK;
 175 }
 176
 177 NTSTATUS rpc_enum_local_groups(TALLOC_CTX *mem_ctx,
 178                                struct rpc_pipe_client *samr_pipe,
 179                                struct policy_handle *samr_policy,
 180                                uint32_t *pnum_info,
 181                                struct wb_acct_info **pinfo)
 182 {
 183         struct wb_acct_info *info = NULL;
 184         uint32_t num_info = 0;
 185         NTSTATUS status, result;
 186         struct dcerpc_binding_handle *b = samr_pipe->binding_handle;
 187
 188         *pnum_info = 0;
 189
 190         do {
 191                 struct samr_SamArray *sam_array = NULL;
 192                 uint32_t count = 0;
 193                 uint32_t start = num_info;
 194                 uint32_t g;
 195
 196                 status = dcerpc_samr_EnumDomainAliases(b,
 197                                                        mem_ctx,
 198                                                        samr_policy,
 199                                                        &start,
 200                                                        &sam_array,
 201                                                        0xFFFF, /* buffer size? */
 202                                                        &count,
 203                                                        &result);
 204                 if (!NT_STATUS_IS_OK(status)) {
 205                         return status;
 206                 }
 207                 if (!NT_STATUS_IS_OK(result)) {
 208                         if (!NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
 209                                 return result;
 210                         }
 211                 }
 212
 213                 info = talloc_realloc(mem_ctx,
 214                                             info,
 215                                             struct wb_acct_info,
 216                                             num_info + count);
 217                 if (info == NULL) {
 218                         return  NT_STATUS_NO_MEMORY;
 219                 }
 220
 221                 for (g = 0; g < count; g++) {
 222                         struct wb_acct_info *i = &info[num_info + g];
 223
 224                         i->acct_name = talloc_strdup(info,
 225                                 sam_array->entries[g].name.string);
 226                         if (i->acct_name == NULL) {
 227                                 TALLOC_FREE(info);
 228                                 return NT_STATUS_NO_MEMORY;
 229                         }
 230                         i->acct_desc = NULL;
 231                         i->rid = sam_array->entries[g].idx;
 232                 }
 233
 234                 num_info += count;
 235         } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
 236
 237         *pnum_info = num_info;
 238         *pinfo = info;
 239
 240         return NT_STATUS_OK;
 241 }
 242
 243 /* Lookup groups a user is a member of. */
 244 NTSTATUS rpc_lookup_usergroups(TALLOC_CTX *mem_ctx,
 245                                struct rpc_pipe_client *samr_pipe,
 246                                struct policy_handle *samr_policy,
 247                                const struct dom_sid *domain_sid,
 248                                const struct dom_sid *user_sid,
 249                                uint32_t *pnum_groups,
 250                                struct dom_sid **puser_grpsids)
 251 {
 252         struct policy_handle user_policy;
 253         struct samr_RidWithAttributeArray *rid_array = NULL;
 254         struct dom_sid *user_grpsids = NULL;
 255         uint32_t num_groups = 0, i;
 256         uint32_t user_rid;
 257         NTSTATUS status, result;
 258         struct dcerpc_binding_handle *b = samr_pipe->binding_handle;
 259
 260         if (!sid_peek_check_rid(domain_sid, user_sid, &user_rid)) {
 261                 return NT_STATUS_UNSUCCESSFUL;
 262         }
 263
 264         /* Get user handle */
 265         status = dcerpc_samr_OpenUser(b,
 266                                       mem_ctx,
 267                                       samr_policy,
 268                                       SEC_FLAG_MAXIMUM_ALLOWED,
 269                                       user_rid,
 270                                       &user_policy,
 271                                       &result);
 272         if (!NT_STATUS_IS_OK(status)) {
 273                 return status;
 274         }
 275         if (!NT_STATUS_IS_OK(result)) {
 276                 return result;
 277         }
 278
 279         /* Query user rids */
 280         status = dcerpc_samr_GetGroupsForUser(b,
 281                                               mem_ctx,
 282                                               &user_policy,
 283                                               &rid_array,
 284                                               &result);
 285         {
 286                 NTSTATUS _result;
 287                 dcerpc_samr_Close(b, mem_ctx, &user_policy, &_result);
 288         }
 289
 290         if (!NT_STATUS_IS_OK(status)) {
 291                 return status;
 292         }
 293         if (!NT_STATUS_IS_OK(result)) {
 294                 return result;
 295         }
 296
 297         num_groups = rid_array->count;
 298
 299         user_grpsids = talloc_array(mem_ctx, struct dom_sid, num_groups);
 300         if (user_grpsids == NULL) {
 301                 status = NT_STATUS_NO_MEMORY;
 302                 return status;
 303         }
 304
 305         for (i = 0; i < num_groups; i++) {
 306                 sid_compose(&(user_grpsids[i]), domain_sid,
 307                             rid_array->rids[i].rid);
 308         }
 309
 310         *pnum_groups = num_groups;
 311
 312         *puser_grpsids = user_grpsids;
 313
 314         return NT_STATUS_OK;
 315 }
 316
 317 NTSTATUS rpc_lookup_useraliases(TALLOC_CTX *mem_ctx,
 318                                 struct rpc_pipe_client *samr_pipe,
 319                                 struct policy_handle *samr_policy,
 320                                 uint32_t num_sids,
 321                                 const struct dom_sid *sids,
 322                                 uint32_t *pnum_aliases,
 323                                 uint32_t **palias_rids)
 324 {
 325 #define MAX_SAM_ENTRIES_W2K 0x400 /* 1024 */
 326         uint32_t num_queries = 1;
 327         uint32_t num_aliases = 0;
 328         uint32_t total_sids = 0;
 329         uint32_t *alias_rids = NULL;
 330         uint32_t rangesize = MAX_SAM_ENTRIES_W2K;
 331         uint32_t i;
 332         struct samr_Ids alias_rids_query;
 333         NTSTATUS status, result;
 334         struct dcerpc_binding_handle *b = samr_pipe->binding_handle;
 335
 336         do {
 337                 /* prepare query */
 338                 struct lsa_SidArray sid_array;
 339                 uint32_t num_query_sids = 0;
 340
 341                 ZERO_STRUCT(sid_array);
 342
 343                 num_query_sids = MIN(num_sids - total_sids, rangesize);
 344
 345                 DEBUG(10,("rpc: lookup_useraliases: entering query %d for %d sids\n",
 346                         num_queries, num_query_sids));
 347
 348                 if (num_query_sids) {
 349                         sid_array.sids = talloc_zero_array(mem_ctx, struct lsa_SidPtr, num_query_sids);
 350                         if (sid_array.sids == NULL) {
 351                                 return NT_STATUS_NO_MEMORY;
 352                         }
 353                 } else {
 354                         sid_array.sids = NULL;
 355                 }
 356
 357                 for (i = 0; i < num_query_sids; i++) {
 358                         sid_array.sids[i].sid = dom_sid_dup(mem_ctx, &sids[total_sids++]);
 359                         if (sid_array.sids[i].sid == NULL) {
 360                                 return NT_STATUS_NO_MEMORY;
 361                         }
 362                 }
 363                 sid_array.num_sids = num_query_sids;
 364
 365                 /* do request */
 366                 status = dcerpc_samr_GetAliasMembership(b,
 367                                                         mem_ctx,
 368                                                         samr_policy,
 369                                                         &sid_array,
 370                                                         &alias_rids_query,
 371                                                         &result);
 372                 if (!NT_STATUS_IS_OK(status)) {
 373                         return status;
 374                 }
 375                 if (!NT_STATUS_IS_OK(result)) {
 376                         return result;
 377                 }
 378
 379                 /* process output */
 380                 for (i = 0; i < alias_rids_query.count; i++) {
 381                         size_t na = num_aliases;
 382
 383                         if (!add_rid_to_array_unique(mem_ctx,
 384                                                      alias_rids_query.ids[i],
 385                                                      &alias_rids,
 386                                                      &na)) {
 387                                         return NT_STATUS_NO_MEMORY;
 388                                 }
 389                                 num_aliases = na;
 390                 }
 391
 392                 num_queries++;
 393
 394         } while (total_sids < num_sids);
 395
 396         DEBUG(10,("rpc: rpc_lookup_useraliases: got %d aliases in %d queries "
 397                   "(rangesize: %d)\n", num_aliases, num_queries, rangesize));
 398
 399         *pnum_aliases = num_aliases;
 400         *palias_rids = alias_rids;
 401
 402         return NT_STATUS_OK;
 403 #undef MAX_SAM_ENTRIES_W2K
 404 }
 405
 406 /* Lookup group membership given a rid.   */
 407 NTSTATUS rpc_lookup_groupmem(TALLOC_CTX *mem_ctx,
 408                              struct rpc_pipe_client *samr_pipe,
 409                              struct policy_handle *samr_policy,
 410                              const char *domain_name,
 411                              const struct dom_sid *domain_sid,
 412                              const struct dom_sid *group_sid,
 413                              enum lsa_SidType type,
 414                              uint32_t *pnum_names,
 415                              struct dom_sid **psid_mem,
 416                              char ***pnames,
 417                              uint32_t **pname_types)
 418 {
 419         struct policy_handle group_policy;
 420         uint32_t group_rid;
 421         uint32_t *rid_mem = NULL;
 422
 423         uint32_t num_names = 0;
 424         uint32_t total_names = 0;
 425         struct dom_sid *sid_mem = NULL;
 426         char **names = NULL;
 427         uint32_t *name_types = NULL;
 428
 429         struct lsa_Strings tmp_names;
 430         struct samr_Ids tmp_types;
 431
 432         uint32_t j, r;
 433         NTSTATUS status, result;
 434         struct dcerpc_binding_handle *b = samr_pipe->binding_handle;
 435
 436         if (!sid_peek_check_rid(domain_sid, group_sid, &group_rid)) {
 437                 return NT_STATUS_UNSUCCESSFUL;
 438         }
 439
 440         switch(type) {
 441         case SID_NAME_DOM_GRP:
 442         {
 443                 struct samr_RidAttrArray *rids = NULL;
 444
 445                 status = dcerpc_samr_OpenGroup(b,
 446                                                mem_ctx,
 447                                                samr_policy,
 448                                                SEC_FLAG_MAXIMUM_ALLOWED,
 449                                                group_rid,
 450                                                &group_policy,
 451                                                &result);
 452                 if (!NT_STATUS_IS_OK(status)) {
 453                         return status;
 454                 }
 455                 if (!NT_STATUS_IS_OK(result)) {
 456                         return result;
 457                 }
 458
 459                 /*
 460                  * Step #1: Get a list of user rids that are the members of the group.
 461                  */
 462                 status = dcerpc_samr_QueryGroupMember(b,
 463                                                       mem_ctx,
 464                                                       &group_policy,
 465                                                       &rids,
 466                                                       &result);
 467                 {
 468                         NTSTATUS _result;
 469                         dcerpc_samr_Close(b, mem_ctx, &group_policy, &_result);
 470                 }
 471
 472                 if (!NT_STATUS_IS_OK(status)) {
 473                         return status;
 474                 }
 475                 if (!NT_STATUS_IS_OK(result)) {
 476                         return result;
 477                 }
 478
 479
 480                 if (rids == NULL || rids->count == 0) {
 481                         pnum_names = 0;
 482                         pnames = NULL;
 483                         pname_types = NULL;
 484                         psid_mem = NULL;
 485
 486                         return NT_STATUS_OK;
 487                 }
 488
 489                 num_names = rids->count;
 490                 rid_mem = rids->rids;
 491
 492                 break;
 493         }
 494         default:
 495                 return NT_STATUS_UNSUCCESSFUL;
 496         }
 497
 498         /*
 499          * Step #2: Convert list of rids into list of usernames.
 500          */
 501         if (num_names > 0) {
 502                 names = talloc_zero_array(mem_ctx, char *, num_names);
 503                 name_types = talloc_zero_array(mem_ctx, uint32_t, num_names);
 504                 sid_mem = talloc_zero_array(mem_ctx, struct dom_sid, num_names);
 505                 if (names == NULL || name_types == NULL || sid_mem == NULL) {
 506                         return NT_STATUS_NO_MEMORY;
 507                 }
 508         }
 509
 510         for (j = 0; j < num_names; j++) {
 511                 sid_compose(&sid_mem[j], domain_sid, rid_mem[j]);
 512         }
 513
 514         status = dcerpc_samr_LookupRids(b,
 515                                         mem_ctx,
 516                                         samr_policy,
 517                                         num_names,
 518                                         rid_mem,
 519                                         &tmp_names,
 520                                         &tmp_types,
 521                                         &result);
 522         if (!NT_STATUS_IS_OK(status)) {
 523                 return status;
 524         }
 525
 526         if (!NT_STATUS_IS_OK(result)) {
 527                 if (!NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) {
 528                         return result;
 529                 }
 530         }
 531
 532         /* Copy result into array.  The talloc system will take
 533            care of freeing the temporary arrays later on. */
 534         if (tmp_names.count != num_names) {
 535                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 536         }
 537         if (tmp_types.count != num_names) {
 538                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 539         }
 540
 541         for (r = 0; r < tmp_names.count; r++) {
 542                 if (tmp_types.ids[r] == SID_NAME_UNKNOWN) {
 543                         continue;
 544                 }
 545                 if (total_names >= num_names) {
 546                         break;
 547                 }
 548                 names[total_names] = fill_domain_username_talloc(names,
 549                                                                  domain_name,
 550                                                                  tmp_names.names[r].string,
 551                                                                  true);
 552                 if (names[total_names] == NULL) {
 553                         return NT_STATUS_NO_MEMORY;
 554                 }
 555                 name_types[total_names] = tmp_types.ids[r];
 556                 total_names++;
 557         }
 558
 559         *pnum_names = total_names;
 560         *pnames = names;
 561         *pname_types = name_types;
 562         *psid_mem = sid_mem;
 563
 564         return NT_STATUS_OK;
 565 }
 566
 567 /* Lookup alias membership using a rid taken from alias_sid. */
 568 NTSTATUS rpc_lookup_aliasmem(TALLOC_CTX *mem_ctx,
 569                              struct rpc_pipe_client *samr_pipe,
 570                              struct policy_handle *samr_policy,
 571                              const struct dom_sid *domain_sid,
 572                              const struct dom_sid *alias_sid,
 573                              enum lsa_SidType type,
 574                              uint32_t *pnum_sids,
 575                              struct dom_sid **psids)
 576 {
 577         uint32_t alias_rid;
 578         struct dom_sid *sid_mem = NULL;
 579         struct lsa_SidArray sid_array;
 580         uint32_t i;
 581         NTSTATUS status, result;
 582         struct dcerpc_binding_handle *b = samr_pipe->binding_handle;
 583
 584         if (!sid_peek_check_rid(domain_sid, alias_sid, &alias_rid)) {
 585                 return NT_STATUS_UNSUCCESSFUL;
 586         }
 587
 588         switch (type) {
 589         case SID_NAME_ALIAS: {
 590                 struct policy_handle alias_policy;
 591
 592                 status = dcerpc_samr_OpenAlias(b,
 593                                                mem_ctx,
 594                                                samr_policy,
 595                                                SEC_FLAG_MAXIMUM_ALLOWED,
 596                                                alias_rid,
 597                                                &alias_policy,
 598                                                &result);
 599                 if (any_nt_status_not_ok(status, result, &status)) {
 600                         return status;
 601                 }
 602
 603                 status = dcerpc_samr_GetMembersInAlias(b,
 604                                                        mem_ctx,
 605                                                        &alias_policy,
 606                                                        &sid_array,
 607                                                        &result);
 608                 {
 609                         NTSTATUS _result;
 610                         dcerpc_samr_Close(b, mem_ctx, &alias_policy, &_result);
 611                 }
 612                 if (any_nt_status_not_ok(status, result, &status)) {
 613                         return status;
 614                 }
 615
 616                 sid_mem = talloc_zero_array(mem_ctx,
 617                                             struct dom_sid,
 618                                             sid_array.num_sids);
 619                 if (sid_mem == NULL) {
 620                         return NT_STATUS_NO_MEMORY;
 621                 }
 622
 623                 /*
 624                  * We cannot just simply assign '*psids = sid_array.sids;'
 625                  * we need to copy every sid since these are incompatible types:
 626                  * 'struct dom_sid *' vs 'struct lsa_SidPtr *'
 627                  */
 628                 for (i = 0; i < sid_array.num_sids; i++) {
 629                         sid_copy(&sid_mem[i], sid_array.sids[i].sid);
 630                 }
 631
 632                 *pnum_sids = sid_array.num_sids;
 633                 *psids = sid_mem;
 634
 635                 return NT_STATUS_OK;
 636         }
 637         default:
 638                 return NT_STATUS_UNSUCCESSFUL;
 639         }
 640 }
 641
 642 /* Get a list of trusted domains */
 643 NTSTATUS rpc_trusted_domains(TALLOC_CTX *mem_ctx,
 644                              struct rpc_pipe_client *lsa_pipe,
 645                              struct policy_handle *lsa_policy,
 646                              uint32_t *pnum_trusts,
 647                              struct netr_DomainTrust **ptrusts)
 648 {
 649         struct netr_DomainTrust *array = NULL;
 650         uint32_t enum_ctx = 0;
 651         uint32_t count = 0;
 652         NTSTATUS status, result;
 653         struct dcerpc_binding_handle *b = lsa_pipe->binding_handle;
 654
 655         do {
 656                 struct lsa_DomainList dom_list;
 657                 struct lsa_DomainListEx dom_list_ex;
 658                 bool has_ex = false;
 659                 uint32_t i;
 660
 661                 /*
 662                  * We don't run into deadlocks here, cause winbind_off() is
 663                  * called in the main function.
 664                  */
 665                 status = dcerpc_lsa_EnumTrustedDomainsEx(b,
 666                                                          mem_ctx,
 667                                                          lsa_policy,
 668                                                          &enum_ctx,
 669                                                          &dom_list_ex,
 670                                                          (uint32_t) -1,
 671                                                          &result);
 672                 if (NT_STATUS_IS_OK(status) && !NT_STATUS_IS_ERR(result) &&
 673                     dom_list_ex.count > 0) {
 674                         count += dom_list_ex.count;
 675                         has_ex = true;
 676                 } else {
 677                         status = dcerpc_lsa_EnumTrustDom(b,
 678                                                          mem_ctx,
 679                                                          lsa_policy,
 680                                                          &enum_ctx,
 681                                                          &dom_list,
 682                                                          (uint32_t) -1,
 683                                                          &result);
 684                         if (!NT_STATUS_IS_OK(status)) {
 685                                 return status;
 686                         }
 687                         if (!NT_STATUS_IS_OK(result)) {
 688                                 if (!NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) {
 689                                         return result;
 690                                 }
 691                         }
 692
 693                         count += dom_list.count;
 694                 }
 695
 696                 array = talloc_realloc(mem_ctx,
 697                                        array,
 698                                        struct netr_DomainTrust,
 699                                        count);
 700                 if (array == NULL) {
 701                         return NT_STATUS_NO_MEMORY;
 702                 }
 703
 704                 for (i = 0; i < count; i++) {
 705                         struct netr_DomainTrust *trust = &array[i];
 706                         struct dom_sid *sid;
 707
 708                         ZERO_STRUCTP(trust);
 709
 710                         sid = talloc(array, struct dom_sid);
 711                         if (sid == NULL) {
 712                                 return NT_STATUS_NO_MEMORY;
 713                         }
 714
 715                         if (dom_list_ex.domains[i].sid == NULL) {
 716                                 DBG_ERR("Trusted domain %s has no SID, "
 717                                         "skipping!\n",
 718                                         trust->dns_name);
 719                                 continue;
 720                         }
 721
 722                         if (has_ex) {
 723                                 trust->netbios_name = talloc_move(array,
 724                                                                   &dom_list_ex.domains[i].netbios_name.string);
 725                                 trust->dns_name = talloc_move(array,
 726                                                               &dom_list_ex.domains[i].domain_name.string);
 727                                 sid_copy(sid, dom_list_ex.domains[i].sid);
 728                         } else {
 729                                 trust->netbios_name = talloc_move(array,
 730                                                                   &dom_list.domains[i].name.string);
 731                                 trust->dns_name = NULL;
 732
 733                                 sid_copy(sid, dom_list.domains[i].sid);
 734                         }
 735
 736                         trust->sid = sid;
 737                 }
 738         } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES));
 739
 740         *pnum_trusts = count;
 741         *ptrusts = array;
 742
 743         return NT_STATUS_OK;
 744 }
 745
 746 static NTSTATUS rpc_try_lookup_sids3(TALLOC_CTX *mem_ctx,
 747                                      struct winbindd_domain *domain,
 748                                      struct rpc_pipe_client *cli,
 749                                      struct lsa_SidArray *sids,
 750                                      struct lsa_RefDomainList **pdomains,
 751                                      struct lsa_TransNameArray **pnames)
 752 {
 753         struct lsa_TransNameArray2 lsa_names2;
 754         struct lsa_TransNameArray *names = *pnames;
 755         uint32_t i, count = 0;
 756         NTSTATUS status, result;
 757
 758         ZERO_STRUCT(lsa_names2);
 759         status = dcerpc_lsa_LookupSids3(cli->binding_handle,
 760                                         mem_ctx,
 761                                         sids,
 762                                         pdomains,
 763                                         &lsa_names2,
 764                                         LSA_LOOKUP_NAMES_ALL,
 765                                         &count,
 766                                         LSA_LOOKUP_OPTION_SEARCH_ISOLATED_NAMES,
 767                                         LSA_CLIENT_REVISION_2,
 768                                         &result);
 769         if (!NT_STATUS_IS_OK(status)) {
 770                 return status;
 771         }
 772         if (NT_STATUS_LOOKUP_ERR(result)) {
 773                 return result;
 774         }
 775         if (sids->num_sids != lsa_names2.count) {
 776                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 777         }
 778
 779         names->count = lsa_names2.count;
 780         names->names = talloc_array(names, struct lsa_TranslatedName,
 781                                     names->count);
 782         if (names->names == NULL) {
 783                 return NT_STATUS_NO_MEMORY;
 784         }
 785         for (i=0; i<names->count; i++) {
 786                 names->names[i].sid_type = lsa_names2.names[i].sid_type;
 787                 names->names[i].name.string = talloc_move(
 788                         names->names, &lsa_names2.names[i].name.string);
 789                 names->names[i].sid_index = lsa_names2.names[i].sid_index;
 790
 791                 if (names->names[i].sid_index == UINT32_MAX) {
 792                         continue;
 793                 }
 794                 if ((*pdomains) == NULL) {
 795                         return NT_STATUS_INVALID_NETWORK_RESPONSE;
 796                 }
 797                 if (names->names[i].sid_index >= (*pdomains)->count) {
 798                         return NT_STATUS_INVALID_NETWORK_RESPONSE;
 799                 }
 800         }
 801         return NT_STATUS_OK;
 802 }
 803
 804 NTSTATUS rpc_lookup_sids(TALLOC_CTX *mem_ctx,
 805                          struct winbindd_domain *domain,
 806                          struct lsa_SidArray *sids,
 807                          struct lsa_RefDomainList **pdomains,
 808                          struct lsa_TransNameArray **pnames)
 809 {
 810         struct lsa_TransNameArray *names = *pnames;
 811         struct rpc_pipe_client *cli = NULL;
 812         struct dcerpc_binding_handle *b = NULL;
 813         struct policy_handle lsa_policy;
 814         uint32_t count;
 815         uint32_t i;
 816         NTSTATUS status, result;
 817
 818         status = cm_connect_lsat(domain, mem_ctx, &cli, &lsa_policy);
 819         if (!NT_STATUS_IS_OK(status)) {
 820                 return status;
 821         }
 822
 823         b = cli->binding_handle;
 824
 825         if (dcerpc_binding_handle_get_transport(b) == NCACN_IP_TCP) {
 826                 return rpc_try_lookup_sids3(mem_ctx, domain, cli, sids,
 827                                             pdomains, pnames);
 828         }
 829
 830         status = dcerpc_lsa_LookupSids(b, mem_ctx,
 831                                        &lsa_policy, sids, pdomains,
 832                                        names, LSA_LOOKUP_NAMES_ALL,
 833                                        &count, &result);
 834         if (!NT_STATUS_IS_OK(status)) {
 835                 return status;
 836         }
 837         if (NT_STATUS_LOOKUP_ERR(result)) {
 838                 return result;
 839         }
 840
 841         if (sids->num_sids != names->count) {
 842                 return NT_STATUS_INVALID_NETWORK_RESPONSE;
 843         }
 844
 845         for (i=0; i < names->count; i++) {
 846                 if (names->names[i].sid_index == UINT32_MAX) {
 847                         continue;
 848                 }
 849                 if ((*pdomains) == NULL) {
 850                         return NT_STATUS_INVALID_NETWORK_RESPONSE;
 851                 }
 852                 if (names->names[i].sid_index >= (*pdomains)->count) {
 853                         return NT_STATUS_INVALID_NETWORK_RESPONSE;
 854                 }
 855         }
 856
 857         return NT_STATUS_OK;
 858 }