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