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