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 #include "../librpc/gen_ndr/cli_lsa.h"
  27 #include "rpc_client/cli_lsarpc.h"
  28
  29 /** @defgroup lsa LSA - Local Security Architecture
  30  *  @ingroup rpc_client
  31  *
  32  * @{
  33  **/
  34
  35 /**
  36  * @file cli_lsarpc.c
  37  *
  38  * RPC client routines for the LSA RPC pipe.  LSA means "local
  39  * security authority", which is half of a password database.
  40  **/
  41
  42 /** Open a LSA policy handle
  43  *
  44  * @param cli Handle on an initialised SMB connection */
  45
  46 NTSTATUS rpccli_lsa_open_policy(struct rpc_pipe_client *cli,
  47                                 TALLOC_CTX *mem_ctx,
  48                                 bool sec_qos, uint32 des_access,
  49                                 struct policy_handle *pol)
  50 {
  51         struct lsa_ObjectAttribute attr;
  52         struct lsa_QosInfo qos;
  53         uint16_t system_name = '\\';
  54
  55         ZERO_STRUCT(attr);
  56
  57         attr.len        = 0x18;
  58
  59         if (sec_qos) {
  60                 qos.len                 = 0xc;
  61                 qos.impersonation_level = 2;
  62                 qos.context_mode        = 1;
  63                 qos.effective_only      = 0;
  64
  65                 attr.sec_qos            = &qos;
  66         }
  67
  68         return rpccli_lsa_OpenPolicy(cli, mem_ctx,
  69                                      &system_name,
  70                                      &attr,
  71                                      des_access,
  72                                      pol);
  73 }
  74
  75 /** Open a LSA policy handle
  76   *
  77   * @param cli Handle on an initialised SMB connection
  78   */
  79
  80 NTSTATUS rpccli_lsa_open_policy2(struct rpc_pipe_client *cli,
  81                                  TALLOC_CTX *mem_ctx, bool sec_qos,
  82                                  uint32 des_access, struct policy_handle *pol)
  83 {
  84         struct lsa_ObjectAttribute attr;
  85         struct lsa_QosInfo qos;
  86
  87         ZERO_STRUCT(attr);
  88
  89         attr.len        = 0x18;
  90
  91         if (sec_qos) {
  92                 qos.len                 = 0xc;
  93                 qos.impersonation_level = 2;
  94                 qos.context_mode        = 1;
  95                 qos.effective_only      = 0;
  96
  97                 attr.sec_qos            = &qos;
  98         }
  99
 100         return rpccli_lsa_OpenPolicy2(cli, mem_ctx,
 101                                       cli->srv_name_slash,
 102                                       &attr,
 103                                       des_access,
 104                                       pol);
 105 }
 106
 107 /* Lookup a list of sids
 108  *
 109  * internal version withOUT memory allocation of the target arrays.
 110  * this assumes suffciently sized arrays to store domains, names and types. */
 111
 112 static NTSTATUS rpccli_lsa_lookup_sids_noalloc(struct rpc_pipe_client *cli,
 113                                                TALLOC_CTX *mem_ctx,
 114                                                struct policy_handle *pol,
 115                                                int num_sids,
 116                                                const struct dom_sid *sids,
 117                                                char **domains,
 118                                                char **names,
 119                                                enum lsa_SidType *types,
 120                                                bool use_lookupsids3)
 121 {
 122         NTSTATUS result = NT_STATUS_OK;
 123         TALLOC_CTX *tmp_ctx = NULL;
 124         int i;
 125         struct lsa_SidArray sid_array;
 126         struct lsa_RefDomainList *ref_domains = NULL;
 127         struct lsa_TransNameArray lsa_names;
 128         uint32_t count = 0;
 129         uint16_t level = 1;
 130
 131         ZERO_STRUCT(lsa_names);
 132
 133         tmp_ctx = talloc_new(mem_ctx);
 134         if (!tmp_ctx) {
 135                 DEBUG(0, ("rpccli_lsa_lookup_sids_noalloc: out of memory!\n"));
 136                 result = NT_STATUS_UNSUCCESSFUL;
 137                 goto done;
 138         }
 139
 140         sid_array.num_sids = num_sids;
 141         sid_array.sids = TALLOC_ARRAY(mem_ctx, struct lsa_SidPtr, num_sids);
 142         if (!sid_array.sids) {
 143                 return NT_STATUS_NO_MEMORY;
 144         }
 145
 146         for (i = 0; i<num_sids; i++) {
 147                 sid_array.sids[i].sid = sid_dup_talloc(mem_ctx, &sids[i]);
 148                 if (!sid_array.sids[i].sid) {
 149                         return NT_STATUS_NO_MEMORY;
 150                 }
 151         }
 152
 153         if (use_lookupsids3) {
 154                 struct lsa_TransNameArray2 lsa_names2;
 155                 uint32_t n;
 156
 157                 ZERO_STRUCT(lsa_names2);
 158
 159                 result = rpccli_lsa_LookupSids3(cli, mem_ctx,
 160                                                 &sid_array,
 161                                                 &ref_domains,
 162                                                 &lsa_names2,
 163                                                 level,
 164                                                 &count,
 165                                                 0,
 166                                                 0);
 167
 168                 if (!NT_STATUS_IS_ERR(result)) {
 169                         lsa_names.count = lsa_names2.count;
 170                         lsa_names.names = talloc_array(mem_ctx, struct lsa_TranslatedName, lsa_names.count);
 171                         if (!lsa_names.names) {
 172                                 return NT_STATUS_NO_MEMORY;
 173                         }
 174                         for (n=0; n < lsa_names.count; n++) {
 175                                 lsa_names.names[n].sid_type     = lsa_names2.names[n].sid_type;
 176                                 lsa_names.names[n].name         = lsa_names2.names[n].name;
 177                                 lsa_names.names[n].sid_index    = lsa_names2.names[n].sid_index;
 178                         }
 179                 }
 180
 181         } else {
 182                 result = rpccli_lsa_LookupSids(cli, mem_ctx,
 183                                                pol,
 184                                                &sid_array,
 185                                                &ref_domains,
 186                                                &lsa_names,
 187                                                level,
 188                                                &count);
 189         }
 190
 191         DEBUG(10, ("LSA_LOOKUPSIDS returned '%s', mapped count = %d'\n",
 192                    nt_errstr(result), count));
 193
 194         if (!NT_STATUS_IS_OK(result) &&
 195             !NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) &&
 196             !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED))
 197         {
 198                 /* An actual error occured */
 199                 goto done;
 200         }
 201
 202         /* Return output parameters */
 203
 204         if (NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) ||
 205             (count == 0))
 206         {
 207                 for (i = 0; i < num_sids; i++) {
 208                         (names)[i] = NULL;
 209                         (domains)[i] = NULL;
 210                         (types)[i] = SID_NAME_UNKNOWN;
 211                 }
 212                 result = NT_STATUS_NONE_MAPPED;
 213                 goto done;
 214         }
 215
 216         for (i = 0; i < num_sids; i++) {
 217                 const char *name, *dom_name;
 218                 uint32_t dom_idx = lsa_names.names[i].sid_index;
 219
 220                 /* Translate optimised name through domain index array */
 221
 222                 if (dom_idx != 0xffffffff) {
 223
 224                         dom_name = ref_domains->domains[dom_idx].name.string;
 225                         name = lsa_names.names[i].name.string;
 226
 227                         if (name) {
 228                                 (names)[i] = talloc_strdup(names, name);
 229                                 if ((names)[i] == NULL) {
 230                                         DEBUG(0, ("cli_lsa_lookup_sids_noalloc(): out of memory\n"));
 231                                         result = NT_STATUS_UNSUCCESSFUL;
 232                                         goto done;
 233                                 }
 234                         } else {
 235                                 (names)[i] = NULL;
 236                         }
 237                         domains[i] = talloc_strdup(domains,
 238                                                    dom_name ? dom_name : "");
 239                         (types)[i] = lsa_names.names[i].sid_type;
 240                         if (((domains)[i] == NULL)) {
 241                                 DEBUG(0, ("cli_lsa_lookup_sids_noalloc(): out of memory\n"));
 242                                 result = NT_STATUS_UNSUCCESSFUL;
 243                                 goto done;
 244                         }
 245
 246                 } else {
 247                         (names)[i] = NULL;
 248                         (domains)[i] = NULL;
 249                         (types)[i] = SID_NAME_UNKNOWN;
 250                 }
 251         }
 252
 253 done:
 254         TALLOC_FREE(tmp_ctx);
 255         return result;
 256 }
 257
 258 /* Lookup a list of sids
 259  *
 260  * do it the right way: there is a limit (of 20480 for w2k3) entries
 261  * returned by this call. when the sids list contains more entries,
 262  * empty lists are returned. This version of lsa_lookup_sids passes
 263  * the list of sids in hunks of LOOKUP_SIDS_HUNK_SIZE to the lsa call. */
 264
 265 /* This constant defines the limit of how many sids to look up
 266  * in one call (maximum). the limit from the server side is
 267  * at 20480 for win2k3, but we keep it at a save 1000 for now. */
 268 #define LOOKUP_SIDS_HUNK_SIZE 1000
 269
 270 static NTSTATUS rpccli_lsa_lookup_sids_generic(struct rpc_pipe_client *cli,
 271                                                TALLOC_CTX *mem_ctx,
 272                                                struct policy_handle *pol,
 273                                                int num_sids,
 274                                                const struct dom_sid *sids,
 275                                                char ***pdomains,
 276                                                char ***pnames,
 277                                                enum lsa_SidType **ptypes,
 278                                                bool use_lookupsids3)
 279 {
 280         NTSTATUS result = NT_STATUS_OK;
 281         int sids_left = 0;
 282         int sids_processed = 0;
 283         const struct dom_sid *hunk_sids = sids;
 284         char **hunk_domains;
 285         char **hunk_names;
 286         enum lsa_SidType *hunk_types;
 287         char **domains = NULL;
 288         char **names = NULL;
 289         enum lsa_SidType *types = NULL;
 290
 291         if (num_sids) {
 292                 if (!(domains = TALLOC_ARRAY(mem_ctx, char *, num_sids))) {
 293                         DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n"));
 294                         result = NT_STATUS_NO_MEMORY;
 295                         goto fail;
 296                 }
 297
 298                 if (!(names = TALLOC_ARRAY(mem_ctx, char *, num_sids))) {
 299                         DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n"));
 300                         result = NT_STATUS_NO_MEMORY;
 301                         goto fail;
 302                 }
 303
 304                 if (!(types = TALLOC_ARRAY(mem_ctx, enum lsa_SidType, num_sids))) {
 305                         DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n"));
 306                         result = NT_STATUS_NO_MEMORY;
 307                         goto fail;
 308                 }
 309         }
 310
 311         sids_left = num_sids;
 312         hunk_domains = domains;
 313         hunk_names = names;
 314         hunk_types = types;
 315
 316         while (sids_left > 0) {
 317                 int hunk_num_sids;
 318                 NTSTATUS hunk_result = NT_STATUS_OK;
 319
 320                 hunk_num_sids = ((sids_left > LOOKUP_SIDS_HUNK_SIZE)
 321                                 ? LOOKUP_SIDS_HUNK_SIZE
 322                                 : sids_left);
 323
 324                 DEBUG(10, ("rpccli_lsa_lookup_sids: processing items "
 325                            "%d -- %d of %d.\n",
 326                            sids_processed,
 327                            sids_processed + hunk_num_sids - 1,
 328                            num_sids));
 329
 330                 hunk_result = rpccli_lsa_lookup_sids_noalloc(cli,
 331                                                              mem_ctx,
 332                                                              pol,
 333                                                              hunk_num_sids,
 334                                                              hunk_sids,
 335                                                              hunk_domains,
 336                                                              hunk_names,
 337                                                              hunk_types,
 338                                                              use_lookupsids3);
 339
 340                 if (!NT_STATUS_IS_OK(hunk_result) &&
 341                     !NT_STATUS_EQUAL(hunk_result, STATUS_SOME_UNMAPPED) &&
 342                     !NT_STATUS_EQUAL(hunk_result, NT_STATUS_NONE_MAPPED))
 343                 {
 344                         /* An actual error occured */
 345                         result = hunk_result;
 346                         goto fail;
 347                 }
 348
 349                 /* adapt overall result */
 350                 if (( NT_STATUS_IS_OK(result) &&
 351                      !NT_STATUS_IS_OK(hunk_result))
 352                     ||
 353                     ( NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) &&
 354                      !NT_STATUS_EQUAL(hunk_result, NT_STATUS_NONE_MAPPED)))
 355                 {
 356                         result = STATUS_SOME_UNMAPPED;
 357                 }
 358
 359                 sids_left -= hunk_num_sids;
 360                 sids_processed += hunk_num_sids; /* only used in DEBUG */
 361                 hunk_sids += hunk_num_sids;
 362                 hunk_domains += hunk_num_sids;
 363                 hunk_names += hunk_num_sids;
 364                 hunk_types += hunk_num_sids;
 365         }
 366
 367         *pdomains = domains;
 368         *pnames = names;
 369         *ptypes = types;
 370         return result;
 371
 372 fail:
 373         TALLOC_FREE(domains);
 374         TALLOC_FREE(names);
 375         TALLOC_FREE(types);
 376         return result;
 377 }
 378
 379 NTSTATUS rpccli_lsa_lookup_sids(struct rpc_pipe_client *cli,
 380                                 TALLOC_CTX *mem_ctx,
 381                                 struct policy_handle *pol,
 382                                 int num_sids,
 383                                 const struct dom_sid *sids,
 384                                 char ***pdomains,
 385                                 char ***pnames,
 386                                 enum lsa_SidType **ptypes)
 387 {
 388         return rpccli_lsa_lookup_sids_generic(cli, mem_ctx, pol, num_sids, sids,
 389                                               pdomains, pnames, ptypes, false);
 390 }
 391
 392 NTSTATUS rpccli_lsa_lookup_sids3(struct rpc_pipe_client *cli,
 393                                  TALLOC_CTX *mem_ctx,
 394                                  struct policy_handle *pol,
 395                                  int num_sids,
 396                                  const struct dom_sid *sids,
 397                                  char ***pdomains,
 398                                  char ***pnames,
 399                                  enum lsa_SidType **ptypes)
 400 {
 401         return rpccli_lsa_lookup_sids_generic(cli, mem_ctx, pol, num_sids, sids,
 402                                               pdomains, pnames, ptypes, true);
 403 }
 404
 405 /** Lookup a list of names */
 406
 407 static NTSTATUS rpccli_lsa_lookup_names_generic(struct rpc_pipe_client *cli,
 408                                                 TALLOC_CTX *mem_ctx,
 409                                                 struct policy_handle *pol, int num_names,
 410                                                 const char **names,
 411                                                 const char ***dom_names,
 412                                                 int level,
 413                                                 struct dom_sid **sids,
 414                                                 enum lsa_SidType **types,
 415                                                 bool use_lookupnames4)
 416 {
 417         NTSTATUS result;
 418         int i;
 419         struct lsa_String *lsa_names = NULL;
 420         struct lsa_RefDomainList *domains = NULL;
 421         struct lsa_TransSidArray sid_array;
 422         struct lsa_TransSidArray3 sid_array3;
 423         uint32_t count = 0;
 424
 425         ZERO_STRUCT(sid_array);
 426         ZERO_STRUCT(sid_array3);
 427
 428         lsa_names = TALLOC_ARRAY(mem_ctx, struct lsa_String, num_names);
 429         if (!lsa_names) {
 430                 return NT_STATUS_NO_MEMORY;
 431         }
 432
 433         for (i=0; i<num_names; i++) {
 434                 init_lsa_String(&lsa_names[i], names[i]);
 435         }
 436
 437         if (use_lookupnames4) {
 438                 result = rpccli_lsa_LookupNames4(cli, mem_ctx,
 439                                                  num_names,
 440                                                  lsa_names,
 441                                                  &domains,
 442                                                  &sid_array3,
 443                                                  level,
 444                                                  &count,
 445                                                  0,
 446                                                  0);
 447         } else {
 448                 result = rpccli_lsa_LookupNames(cli, mem_ctx,
 449                                                 pol,
 450                                                 num_names,
 451                                                 lsa_names,
 452                                                 &domains,
 453                                                 &sid_array,
 454                                                 level,
 455                                                 &count);
 456         }
 457
 458         if (!NT_STATUS_IS_OK(result) && NT_STATUS_V(result) !=
 459             NT_STATUS_V(STATUS_SOME_UNMAPPED)) {
 460
 461                 /* An actual error occured */
 462
 463                 goto done;
 464         }
 465
 466         /* Return output parameters */
 467
 468         if (count == 0) {
 469                 result = NT_STATUS_NONE_MAPPED;
 470                 goto done;
 471         }
 472
 473         if (num_names) {
 474                 if (!((*sids = TALLOC_ARRAY(mem_ctx, struct dom_sid, num_names)))) {
 475                         DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n"));
 476                         result = NT_STATUS_NO_MEMORY;
 477                         goto done;
 478                 }
 479
 480                 if (!((*types = TALLOC_ARRAY(mem_ctx, enum lsa_SidType, num_names)))) {
 481                         DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n"));
 482                         result = NT_STATUS_NO_MEMORY;
 483                         goto done;
 484                 }
 485
 486                 if (dom_names != NULL) {
 487                         *dom_names = TALLOC_ARRAY(mem_ctx, const char *, num_names);
 488                         if (*dom_names == NULL) {
 489                                 DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n"));
 490                                 result = NT_STATUS_NO_MEMORY;
 491                                 goto done;
 492                         }
 493                 }
 494         } else {
 495                 *sids = NULL;
 496                 *types = NULL;
 497                 if (dom_names != NULL) {
 498                         *dom_names = NULL;
 499                 }
 500         }
 501
 502         for (i = 0; i < num_names; i++) {
 503                 uint32_t dom_idx;
 504                 struct dom_sid *sid = &(*sids)[i];
 505
 506                 if (use_lookupnames4) {
 507                         dom_idx         = sid_array3.sids[i].sid_index;
 508                         (*types)[i]     = sid_array3.sids[i].sid_type;
 509                 } else {
 510                         dom_idx         = sid_array.sids[i].sid_index;
 511                         (*types)[i]     = sid_array.sids[i].sid_type;
 512                 }
 513
 514                 /* Translate optimised sid through domain index array */
 515
 516                 if (dom_idx == 0xffffffff) {
 517                         /* Nothing to do, this is unknown */
 518                         ZERO_STRUCTP(sid);
 519                         (*types)[i] = SID_NAME_UNKNOWN;
 520                         continue;
 521                 }
 522
 523                 if (use_lookupnames4) {
 524                         sid_copy(sid, sid_array3.sids[i].sid);
 525                 } else {
 526                         sid_copy(sid, domains->domains[dom_idx].sid);
 527
 528                         if (sid_array.sids[i].rid != 0xffffffff) {
 529                                 sid_append_rid(sid, sid_array.sids[i].rid);
 530                         }
 531                 }
 532
 533                 if (dom_names == NULL) {
 534                         continue;
 535                 }
 536
 537                 (*dom_names)[i] = domains->domains[dom_idx].name.string;
 538         }
 539
 540  done:
 541
 542         return result;
 543 }
 544
 545 NTSTATUS rpccli_lsa_lookup_names(struct rpc_pipe_client *cli,
 546                                  TALLOC_CTX *mem_ctx,
 547                                  struct policy_handle *pol, int num_names,
 548                                  const char **names,
 549                                  const char ***dom_names,
 550                                  int level,
 551                                  struct dom_sid **sids,
 552                                  enum lsa_SidType **types)
 553 {
 554         return rpccli_lsa_lookup_names_generic(cli, mem_ctx, pol, num_names,
 555                                                names, dom_names, level, sids,
 556                                                types, false);
 557 }
 558
 559 NTSTATUS rpccli_lsa_lookup_names4(struct rpc_pipe_client *cli,
 560                                   TALLOC_CTX *mem_ctx,
 561                                   struct policy_handle *pol, int num_names,
 562                                   const char **names,
 563                                   const char ***dom_names,
 564                                   int level,
 565                                   struct dom_sid **sids,
 566                                   enum lsa_SidType **types)
 567 {
 568         return rpccli_lsa_lookup_names_generic(cli, mem_ctx, pol, num_names,
 569                                                names, dom_names, level, sids,
 570                                                types, true);
 571 }