source/rpc_client/cli_lsarpc.c

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