source/winbindd/winbindd_async.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Async helpers for blocking functions
   5
   6    Copyright (C) Volker Lendecke 2005
   7    Copyright (C) Gerald Carter 2006
   8
   9    The helpers always consist of three functions:
  10
  11    * A request setup function that takes the necessary parameters together
  12      with a continuation function that is to be called upon completion
  13
  14    * A private continuation function that is internal only. This is to be
  15      called by the lower-level functions in do_async(). Its only task is to
  16      properly call the continuation function named above.
  17
  18    * A worker function that is called inside the appropriate child process.
  19
  20    This program is free software; you can redistribute it and/or modify
  21    it under the terms of the GNU General Public License as published by
  22    the Free Software Foundation; either version 3 of the License, or
  23    (at your option) any later version.
  24
  25    This program is distributed in the hope that it will be useful,
  26    but WITHOUT ANY WARRANTY; without even the implied warranty of
  27    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  28    GNU General Public License for more details.
  29
  30    You should have received a copy of the GNU General Public License
  31    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  32 */
  33
  34 #include "includes.h"
  35 #include "winbindd.h"
  36
  37 #undef DBGC_CLASS
  38 #define DBGC_CLASS DBGC_WINBIND
  39
  40 struct do_async_state {
  41         TALLOC_CTX *mem_ctx;
  42         struct winbindd_request request;
  43         struct winbindd_response response;
  44         void (*cont)(TALLOC_CTX *mem_ctx,
  45                      BOOL success,
  46                      struct winbindd_response *response,
  47                      void *c, void *private_data);
  48         void *c, *private_data;
  49 };
  50
  51 static void do_async_recv(void *private_data, BOOL success)
  52 {
  53         struct do_async_state *state =
  54                 talloc_get_type_abort(private_data, struct do_async_state);
  55
  56         state->cont(state->mem_ctx, success, &state->response,
  57                     state->c, state->private_data);
  58 }
  59
  60 static void do_async(TALLOC_CTX *mem_ctx, struct winbindd_child *child,
  61                      const struct winbindd_request *request,
  62                      void (*cont)(TALLOC_CTX *mem_ctx, BOOL success,
  63                                   struct winbindd_response *response,
  64                                   void *c, void *private_data),
  65                      void *c, void *private_data)
  66 {
  67         struct do_async_state *state;
  68
  69         state = TALLOC_ZERO_P(mem_ctx, struct do_async_state);
  70         if (state == NULL) {
  71                 DEBUG(0, ("talloc failed\n"));
  72                 cont(mem_ctx, False, NULL, c, private_data);
  73                 return;
  74         }
  75
  76         state->mem_ctx = mem_ctx;
  77         state->request = *request;
  78         state->request.length = sizeof(state->request);
  79         state->cont = cont;
  80         state->c = c;
  81         state->private_data = private_data;
  82
  83         async_request(mem_ctx, child, &state->request,
  84                       &state->response, do_async_recv, state);
  85 }
  86
  87 void do_async_domain(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
  88                      const struct winbindd_request *request,
  89                      void (*cont)(TALLOC_CTX *mem_ctx, BOOL success,
  90                                   struct winbindd_response *response,
  91                                   void *c, void *private_data),
  92                      void *c, void *private_data)
  93 {
  94         struct do_async_state *state;
  95
  96         state = TALLOC_ZERO_P(mem_ctx, struct do_async_state);
  97         if (state == NULL) {
  98                 DEBUG(0, ("talloc failed\n"));
  99                 cont(mem_ctx, False, NULL, c, private_data);
 100                 return;
 101         }
 102
 103         state->mem_ctx = mem_ctx;
 104         state->request = *request;
 105         state->request.length = sizeof(state->request);
 106         state->cont = cont;
 107         state->c = c;
 108         state->private_data = private_data;
 109
 110         async_domain_request(mem_ctx, domain, &state->request,
 111                              &state->response, do_async_recv, state);
 112 }
 113
 114 static void winbindd_set_mapping_recv(TALLOC_CTX *mem_ctx, BOOL success,
 115                                    struct winbindd_response *response,
 116                                    void *c, void *private_data)
 117 {
 118         void (*cont)(void *priv, BOOL succ) = (void (*)(void *, BOOL))c;
 119
 120         if (!success) {
 121                 DEBUG(5, ("Could not trigger idmap_set_mapping\n"));
 122                 cont(private_data, False);
 123                 return;
 124         }
 125
 126         if (response->result != WINBINDD_OK) {
 127                 DEBUG(5, ("idmap_set_mapping returned an error\n"));
 128                 cont(private_data, False);
 129                 return;
 130         }
 131
 132         cont(private_data, True);
 133 }
 134
 135 void winbindd_set_mapping_async(TALLOC_CTX *mem_ctx, const struct id_map *map,
 136                              void (*cont)(void *private_data, BOOL success),
 137                              void *private_data)
 138 {
 139         struct winbindd_request request;
 140         ZERO_STRUCT(request);
 141         request.cmd = WINBINDD_DUAL_SET_MAPPING;
 142         request.data.dual_idmapset.id = map->xid.id;
 143         request.data.dual_idmapset.type = map->xid.type;
 144         sid_to_string(request.data.dual_idmapset.sid, map->sid);
 145
 146         do_async(mem_ctx, idmap_child(), &request, winbindd_set_mapping_recv,
 147                  (void *)cont, private_data);
 148 }
 149
 150 enum winbindd_result winbindd_dual_set_mapping(struct winbindd_domain *domain,
 151                                             struct winbindd_cli_state *state)
 152 {
 153         struct id_map map;
 154         DOM_SID sid;
 155         NTSTATUS result;
 156
 157         DEBUG(3, ("[%5lu]: dual_idmapset\n", (unsigned long)state->pid));
 158
 159         if (!string_to_sid(&sid, state->request.data.dual_idmapset.sid))
 160                 return WINBINDD_ERROR;
 161
 162         map.sid = &sid;
 163         map.xid.id = state->request.data.dual_idmapset.id;
 164         map.xid.type = state->request.data.dual_idmapset.type;
 165         map.status = ID_MAPPED;
 166
 167         result = idmap_set_mapping(&map);
 168         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 169 }
 170
 171 static void winbindd_set_hwm_recv(TALLOC_CTX *mem_ctx, BOOL success,
 172                                    struct winbindd_response *response,
 173                                    void *c, void *private_data)
 174 {
 175         void (*cont)(void *priv, BOOL succ) = (void (*)(void *, BOOL))c;
 176
 177         if (!success) {
 178                 DEBUG(5, ("Could not trigger idmap_set_hwm\n"));
 179                 cont(private_data, False);
 180                 return;
 181         }
 182
 183         if (response->result != WINBINDD_OK) {
 184                 DEBUG(5, ("idmap_set_hwm returned an error\n"));
 185                 cont(private_data, False);
 186                 return;
 187         }
 188
 189         cont(private_data, True);
 190 }
 191
 192 void winbindd_set_hwm_async(TALLOC_CTX *mem_ctx, const struct unixid *xid,
 193                              void (*cont)(void *private_data, BOOL success),
 194                              void *private_data)
 195 {
 196         struct winbindd_request request;
 197         ZERO_STRUCT(request);
 198         request.cmd = WINBINDD_DUAL_SET_HWM;
 199         request.data.dual_idmapset.id = xid->id;
 200         request.data.dual_idmapset.type = xid->type;
 201
 202         do_async(mem_ctx, idmap_child(), &request, winbindd_set_hwm_recv,
 203                  (void *)cont, private_data);
 204 }
 205
 206 enum winbindd_result winbindd_dual_set_hwm(struct winbindd_domain *domain,
 207                                             struct winbindd_cli_state *state)
 208 {
 209         struct unixid xid;
 210         NTSTATUS result;
 211
 212         DEBUG(3, ("[%5lu]: dual_set_hwm\n", (unsigned long)state->pid));
 213
 214         xid.id = state->request.data.dual_idmapset.id;
 215         xid.type = state->request.data.dual_idmapset.type;
 216
 217         switch (xid.type) {
 218         case ID_TYPE_UID:
 219                 result = idmap_set_uid_hwm(&xid);
 220                 break;
 221         case ID_TYPE_GID:
 222                 result = idmap_set_gid_hwm(&xid);
 223                 break;
 224         default:
 225                 return WINBINDD_ERROR;
 226         }
 227         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 228 }
 229
 230 static void winbindd_sids2xids_recv(TALLOC_CTX *mem_ctx, BOOL success,
 231                                struct winbindd_response *response,
 232                                void *c, void *private_data)
 233 {
 234         void (*cont)(void *priv, BOOL succ, void *, int) =
 235                 (void (*)(void *, BOOL, void *, int))c;
 236
 237         if (!success) {
 238                 DEBUG(5, ("Could not trigger sids2xids\n"));
 239                 cont(private_data, False, NULL, 0);
 240                 return;
 241         }
 242
 243         if (response->result != WINBINDD_OK) {
 244                 DEBUG(5, ("sids2xids returned an error\n"));
 245                 cont(private_data, False, NULL, 0);
 246                 return;
 247         }
 248
 249         cont(private_data, True, response->extra_data.data, response->length - sizeof(response));
 250 }
 251
 252 void winbindd_sids2xids_async(TALLOC_CTX *mem_ctx, void *sids, int size,
 253                          void (*cont)(void *private_data, BOOL success, void *data, int len),
 254                          void *private_data)
 255 {
 256         struct winbindd_request request;
 257         ZERO_STRUCT(request);
 258         request.cmd = WINBINDD_DUAL_SIDS2XIDS;
 259         request.extra_data.data = (char *)sids;
 260         request.extra_len = size;
 261         do_async(mem_ctx, idmap_child(), &request, winbindd_sids2xids_recv,
 262                  (void *)cont, private_data);
 263 }
 264
 265 enum winbindd_result winbindd_dual_sids2xids(struct winbindd_domain *domain,
 266                                            struct winbindd_cli_state *state)
 267 {
 268         DOM_SID *sids;
 269         struct unixid *xids;
 270         struct id_map **ids;
 271         NTSTATUS result;
 272         int num, i;
 273
 274         DEBUG(3, ("[%5lu]: sids to unix ids\n", (unsigned long)state->pid));
 275
 276         if (state->request.extra_len == 0) {
 277                 DEBUG(0, ("Invalid buffer size!\n"));
 278                 return WINBINDD_ERROR;
 279         }
 280
 281         sids = (DOM_SID *)state->request.extra_data.data;
 282         num = state->request.extra_len / sizeof(DOM_SID);
 283
 284         ids = TALLOC_ZERO_ARRAY(state->mem_ctx, struct id_map *, num + 1);
 285         if ( ! ids) {
 286                 DEBUG(0, ("Out of memory!\n"));
 287                 return WINBINDD_ERROR;
 288         }
 289         for (i = 0; i < num; i++) {
 290                 ids[i] = TALLOC_P(ids, struct id_map);
 291                 if ( ! ids[i]) {
 292                         DEBUG(0, ("Out of memory!\n"));
 293                         talloc_free(ids);
 294                         return WINBINDD_ERROR;
 295                 }
 296                 ids[i]->sid = &sids[i];
 297         }
 298
 299         result = idmap_sids_to_unixids(ids);
 300
 301         if (NT_STATUS_IS_OK(result)) {
 302
 303                 xids = SMB_MALLOC_ARRAY(struct unixid, num);
 304                 if ( ! xids) {
 305                         DEBUG(0, ("Out of memory!\n"));
 306                         talloc_free(ids);
 307                         return WINBINDD_ERROR;
 308                 }
 309
 310                 for (i = 0; i < num; i++) {
 311                         if (ids[i]->status == ID_MAPPED) {
 312                                 xids[i].type = ids[i]->xid.type;
 313                                 xids[i].id = ids[i]->xid.id;
 314                         } else {
 315                                 xids[i].type = -1;
 316                         }
 317                 }
 318
 319                 state->response.length = sizeof(state->response) + (sizeof(struct unixid) * num);
 320                 state->response.extra_data.data = xids;
 321
 322         } else {
 323                 DEBUG (2, ("idmap_sids_to_unixids returned an error: 0x%08x\n", NT_STATUS_V(result)));
 324                 talloc_free(ids);
 325                 return WINBINDD_ERROR;
 326         }
 327
 328         talloc_free(ids);
 329         return WINBINDD_OK;
 330 }
 331
 332 static void winbindd_sid2uid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 333                                struct winbindd_response *response,
 334                                void *c, void *private_data)
 335 {
 336         void (*cont)(void *priv, BOOL succ, uid_t uid) =
 337                 (void (*)(void *, BOOL, uid_t))c;
 338
 339         if (!success) {
 340                 DEBUG(5, ("Could not trigger sid2uid\n"));
 341                 cont(private_data, False, 0);
 342                 return;
 343         }
 344
 345         if (response->result != WINBINDD_OK) {
 346                 DEBUG(5, ("sid2uid returned an error\n"));
 347                 cont(private_data, False, 0);
 348                 return;
 349         }
 350
 351         cont(private_data, True, response->data.uid);
 352 }
 353
 354 void winbindd_sid2uid_async(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
 355                          void (*cont)(void *private_data, BOOL success, uid_t uid),
 356                          void *private_data)
 357 {
 358         struct winbindd_request request;
 359         ZERO_STRUCT(request);
 360         request.cmd = WINBINDD_DUAL_SID2UID;
 361         sid_to_string(request.data.dual_sid2id.sid, sid);
 362         do_async(mem_ctx, idmap_child(), &request, winbindd_sid2uid_recv,
 363                  (void *)cont, private_data);
 364 }
 365
 366 enum winbindd_result winbindd_dual_sid2uid(struct winbindd_domain *domain,
 367                                            struct winbindd_cli_state *state)
 368 {
 369         DOM_SID sid;
 370         NTSTATUS result;
 371
 372         DEBUG(3, ("[%5lu]: sid to uid %s\n", (unsigned long)state->pid,
 373                   state->request.data.dual_sid2id.sid));
 374
 375         if (!string_to_sid(&sid, state->request.data.dual_sid2id.sid)) {
 376                 DEBUG(1, ("Could not get convert sid %s from string\n",
 377                           state->request.data.dual_sid2id.sid));
 378                 return WINBINDD_ERROR;
 379         }
 380
 381         /* Find uid for this sid and return it, possibly ask the slow remote idmap */
 382
 383         result = idmap_sid_to_uid(&sid, &(state->response.data.uid));
 384
 385         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 386 }
 387
 388 #if 0   /* not used */
 389 static void uid2name_recv(TALLOC_CTX *mem_ctx, BOOL success,
 390                           struct winbindd_response *response,
 391                           void *c, void *private_data);
 392
 393 void winbindd_uid2name_async(TALLOC_CTX *mem_ctx, uid_t uid,
 394                              void (*cont)(void *private_data, BOOL success,
 395                                           const char *name),
 396                              void *private_data)
 397 {
 398         struct winbindd_request request;
 399         ZERO_STRUCT(request);
 400         request.cmd = WINBINDD_DUAL_UID2NAME;
 401         request.data.uid = uid;
 402         do_async(mem_ctx, idmap_child(), &request, uid2name_recv,
 403                  (void *)cont, private_data);
 404 }
 405 #endif  /* not used */
 406
 407 enum winbindd_result winbindd_dual_uid2name(struct winbindd_domain *domain,
 408                                             struct winbindd_cli_state *state)
 409 {
 410         struct passwd *pw;
 411
 412         DEBUG(3, ("[%5lu]: uid2name %lu\n", (unsigned long)state->pid,
 413                   (unsigned long)state->request.data.uid));
 414
 415         pw = getpwuid(state->request.data.uid);
 416         if (pw == NULL) {
 417                 DEBUG(5, ("User %lu not found\n",
 418                           (unsigned long)state->request.data.uid));
 419                 return WINBINDD_ERROR;
 420         }
 421
 422         fstrcpy(state->response.data.name.name, pw->pw_name);
 423         return WINBINDD_OK;
 424 }
 425
 426 #if 0   /* not used */
 427 static void uid2name_recv(TALLOC_CTX *mem_ctx, BOOL success,
 428                           struct winbindd_response *response,
 429                           void *c, void *private_data)
 430 {
 431         void (*cont)(void *priv, BOOL succ, const char *name) =
 432                 (void (*)(void *, BOOL, const char *))c;
 433
 434         if (!success) {
 435                 DEBUG(5, ("Could not trigger uid2name\n"));
 436                 cont(private_data, False, NULL);
 437                 return;
 438         }
 439
 440         if (response->result != WINBINDD_OK) {
 441                 DEBUG(5, ("uid2name returned an error\n"));
 442                 cont(private_data, False, NULL);
 443                 return;
 444         }
 445
 446         cont(private_data, True, response->data.name.name);
 447 }
 448
 449 static void name2uid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 450                           struct winbindd_response *response,
 451                           void *c, void *private_data);
 452
 453 static void winbindd_name2uid_async(TALLOC_CTX *mem_ctx, const char *name,
 454                                     void (*cont)(void *private_data, BOOL success,
 455                                                  uid_t uid),
 456                                     void *private_data)
 457 {
 458         struct winbindd_request request;
 459         ZERO_STRUCT(request);
 460         request.cmd = WINBINDD_DUAL_NAME2UID;
 461         fstrcpy(request.data.username, name);
 462         do_async(mem_ctx, idmap_child(), &request, name2uid_recv,
 463                  (void *)cont, private_data);
 464 }
 465 #endif  /* not used */
 466
 467 enum winbindd_result winbindd_dual_name2uid(struct winbindd_domain *domain,
 468                                             struct winbindd_cli_state *state)
 469 {
 470         struct passwd *pw;
 471
 472         /* Ensure null termination */
 473         state->request.data.username
 474                 [sizeof(state->request.data.username)-1] = '\0';
 475
 476         DEBUG(3, ("[%5lu]: name2uid %s\n", (unsigned long)state->pid,
 477                   state->request.data.username));
 478
 479         pw = getpwnam(state->request.data.username);
 480         if (pw == NULL) {
 481                 return WINBINDD_ERROR;
 482         }
 483
 484         state->response.data.uid = pw->pw_uid;
 485         return WINBINDD_OK;
 486 }
 487
 488 #if 0   /* not used */
 489 static void name2uid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 490                           struct winbindd_response *response,
 491                           void *c, void *private_data)
 492 {
 493         void (*cont)(void *priv, BOOL succ, uid_t uid) =
 494                 (void (*)(void *, BOOL, uid_t))c;
 495
 496         if (!success) {
 497                 DEBUG(5, ("Could not trigger name2uid\n"));
 498                 cont(private_data, False, 0);
 499                 return;
 500         }
 501
 502         if (response->result != WINBINDD_OK) {
 503                 DEBUG(5, ("name2uid returned an error\n"));
 504                 cont(private_data, False, 0);
 505                 return;
 506         }
 507
 508         cont(private_data, True, response->data.uid);
 509 }
 510 #endif  /* not used */
 511
 512 static void winbindd_sid2gid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 513                                struct winbindd_response *response,
 514                                void *c, void *private_data)
 515 {
 516         void (*cont)(void *priv, BOOL succ, gid_t gid) =
 517                 (void (*)(void *, BOOL, gid_t))c;
 518
 519         if (!success) {
 520                 DEBUG(5, ("Could not trigger sid2gid\n"));
 521                 cont(private_data, False, 0);
 522                 return;
 523         }
 524
 525         if (response->result != WINBINDD_OK) {
 526                 DEBUG(5, ("sid2gid returned an error\n"));
 527                 cont(private_data, False, 0);
 528                 return;
 529         }
 530
 531         cont(private_data, True, response->data.gid);
 532 }
 533
 534 void winbindd_sid2gid_async(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
 535                          void (*cont)(void *private_data, BOOL success, gid_t gid),
 536                          void *private_data)
 537 {
 538         struct winbindd_request request;
 539         ZERO_STRUCT(request);
 540         request.cmd = WINBINDD_DUAL_SID2GID;
 541         sid_to_string(request.data.dual_sid2id.sid, sid);
 542
 543         DEBUG(7,("winbindd_sid2gid_async: Resolving %s to a gid\n",
 544                 request.data.dual_sid2id.sid));
 545
 546         do_async(mem_ctx, idmap_child(), &request, winbindd_sid2gid_recv,
 547                  (void *)cont, private_data);
 548 }
 549
 550 enum winbindd_result winbindd_dual_sid2gid(struct winbindd_domain *domain,
 551                                            struct winbindd_cli_state *state)
 552 {
 553         DOM_SID sid;
 554         NTSTATUS result;
 555
 556         DEBUG(3, ("[%5lu]: sid to gid %s\n", (unsigned long)state->pid,
 557                   state->request.data.dual_sid2id.sid));
 558
 559         if (!string_to_sid(&sid, state->request.data.dual_sid2id.sid)) {
 560                 DEBUG(1, ("Could not get convert sid %s from string\n",
 561                           state->request.data.dual_sid2id.sid));
 562                 return WINBINDD_ERROR;
 563         }
 564
 565         /* Find gid for this sid and return it, possibly ask the slow remote idmap */
 566
 567         result = idmap_sid_to_gid(&sid, &state->response.data.gid);
 568
 569         DEBUG(10, ("winbindd_dual_sid2gid: 0x%08x - %s - %u\n", NT_STATUS_V(result), sid_string_static(&sid), state->response.data.gid));
 570
 571         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 572 }
 573
 574 static void gid2name_recv(TALLOC_CTX *mem_ctx, BOOL success,
 575                           struct winbindd_response *response,
 576                           void *c, void *private_data)
 577 {
 578         void (*cont)(void *priv, BOOL succ, const char *name) =
 579                 (void (*)(void *, BOOL, const char *))c;
 580
 581         if (!success) {
 582                 DEBUG(5, ("Could not trigger gid2name\n"));
 583                 cont(private_data, False, NULL);
 584                 return;
 585         }
 586
 587         if (response->result != WINBINDD_OK) {
 588                 DEBUG(5, ("gid2name returned an error\n"));
 589                 cont(private_data, False, NULL);
 590                 return;
 591         }
 592
 593         cont(private_data, True, response->data.name.name);
 594 }
 595
 596 void winbindd_gid2name_async(TALLOC_CTX *mem_ctx, gid_t gid,
 597                              void (*cont)(void *private_data, BOOL success,
 598                                           const char *name),
 599                              void *private_data)
 600 {
 601         struct winbindd_request request;
 602         ZERO_STRUCT(request);
 603         request.cmd = WINBINDD_DUAL_GID2NAME;
 604         request.data.gid = gid;
 605         do_async(mem_ctx, idmap_child(), &request, gid2name_recv,
 606                  (void *)cont, private_data);
 607 }
 608
 609 enum winbindd_result winbindd_dual_gid2name(struct winbindd_domain *domain,
 610                                             struct winbindd_cli_state *state)
 611 {
 612         struct group *gr;
 613
 614         DEBUG(3, ("[%5lu]: gid2name %lu\n", (unsigned long)state->pid,
 615                   (unsigned long)state->request.data.gid));
 616
 617         gr = getgrgid(state->request.data.gid);
 618         if (gr == NULL)
 619                 return WINBINDD_ERROR;
 620
 621         fstrcpy(state->response.data.name.name, gr->gr_name);
 622         return WINBINDD_OK;
 623 }
 624
 625 #if 0   /* not used */
 626 static void name2gid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 627                           struct winbindd_response *response,
 628                           void *c, void *private_data);
 629
 630 static void winbindd_name2gid_async(TALLOC_CTX *mem_ctx, const char *name,
 631                                     void (*cont)(void *private_data, BOOL success,
 632                                                  gid_t gid),
 633                                     void *private_data)
 634 {
 635         struct winbindd_request request;
 636         ZERO_STRUCT(request);
 637         request.cmd = WINBINDD_DUAL_NAME2GID;
 638         fstrcpy(request.data.groupname, name);
 639         do_async(mem_ctx, idmap_child(), &request, name2gid_recv,
 640                  (void *)cont, private_data);
 641 }
 642 #endif  /* not used */
 643
 644 enum winbindd_result winbindd_dual_name2gid(struct winbindd_domain *domain,
 645                                             struct winbindd_cli_state *state)
 646 {
 647         struct group *gr;
 648
 649         /* Ensure null termination */
 650         state->request.data.groupname
 651                 [sizeof(state->request.data.groupname)-1] = '\0';
 652
 653         DEBUG(3, ("[%5lu]: name2gid %s\n", (unsigned long)state->pid,
 654                   state->request.data.groupname));
 655
 656         gr = getgrnam(state->request.data.groupname);
 657         if (gr == NULL) {
 658                 return WINBINDD_ERROR;
 659         }
 660
 661         state->response.data.gid = gr->gr_gid;
 662         return WINBINDD_OK;
 663 }
 664
 665 #if 0   /* not used */
 666 static void name2gid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 667                           struct winbindd_response *response,
 668                           void *c, void *private_data)
 669 {
 670         void (*cont)(void *priv, BOOL succ, gid_t gid) =
 671                 (void (*)(void *, BOOL, gid_t))c;
 672
 673         if (!success) {
 674                 DEBUG(5, ("Could not trigger name2gid\n"));
 675                 cont(private_data, False, 0);
 676                 return;
 677         }
 678
 679         if (response->result != WINBINDD_OK) {
 680                 DEBUG(5, ("name2gid returned an error\n"));
 681                 cont(private_data, False, 0);
 682                 return;
 683         }
 684
 685         cont(private_data, True, response->data.gid);
 686 }
 687 #endif  /* not used */
 688
 689 struct lookupsid_state {
 690         DOM_SID sid;
 691         void *caller_private_data;
 692 };
 693
 694
 695 static void lookupsid_recv2(TALLOC_CTX *mem_ctx, BOOL success,
 696                            struct winbindd_response *response,
 697                            void *c, void *private_data)
 698 {
 699         void (*cont)(void *priv, BOOL succ, const char *dom_name,
 700                      const char *name, enum lsa_SidType type) =
 701                 (void (*)(void *, BOOL, const char *, const char *,
 702                           enum lsa_SidType))c;
 703         struct lookupsid_state *s = talloc_get_type_abort(private_data,
 704                                                           struct lookupsid_state);
 705
 706         if (!success) {
 707                 DEBUG(5, ("Could not trigger lookupsid\n"));
 708                 cont(s->caller_private_data, False, NULL, NULL, SID_NAME_UNKNOWN);
 709                 return;
 710         }
 711
 712         if (response->result != WINBINDD_OK) {
 713                 DEBUG(5, ("lookupsid (forest root) returned an error\n"));
 714                 cont(s->caller_private_data, False, NULL, NULL, SID_NAME_UNKNOWN);
 715                 return;
 716         }
 717
 718         cont(s->caller_private_data, True, response->data.name.dom_name,
 719              response->data.name.name,
 720              (enum lsa_SidType)response->data.name.type);
 721 }
 722
 723 static void lookupsid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 724                            struct winbindd_response *response,
 725                            void *c, void *private_data)
 726 {
 727         void (*cont)(void *priv, BOOL succ, const char *dom_name,
 728                      const char *name, enum lsa_SidType type) =
 729                 (void (*)(void *, BOOL, const char *, const char *,
 730                           enum lsa_SidType))c;
 731         struct lookupsid_state *s = talloc_get_type_abort(private_data,
 732                                                           struct lookupsid_state);
 733
 734         if (!success) {
 735                 DEBUG(5, ("Could not trigger lookupsid\n"));
 736                 cont(s->caller_private_data, False, NULL, NULL, SID_NAME_UNKNOWN);
 737                 return;
 738         }
 739
 740         if (response->result != WINBINDD_OK) {
 741                 /* Try again using the forest root */
 742                 struct winbindd_domain *root_domain = find_root_domain();
 743                 struct winbindd_request request;
 744
 745                 if ( !root_domain ) {
 746                         DEBUG(5,("lookupsid_recv: unable to determine forest root\n"));
 747                         cont(s->caller_private_data, False, NULL, NULL, SID_NAME_UNKNOWN);
 748                         return;
 749                 }
 750
 751                 ZERO_STRUCT(request);
 752                 request.cmd = WINBINDD_LOOKUPSID;
 753                 fstrcpy(request.data.sid, sid_string_static(&s->sid));
 754
 755                 do_async_domain(mem_ctx, root_domain, &request, lookupsid_recv2,
 756                                 (void *)cont, s);
 757
 758                 return;
 759         }
 760
 761         cont(s->caller_private_data, True, response->data.name.dom_name,
 762              response->data.name.name,
 763              (enum lsa_SidType)response->data.name.type);
 764 }
 765
 766 void winbindd_lookupsid_async(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
 767                               void (*cont)(void *private_data, BOOL success,
 768                                            const char *dom_name,
 769                                            const char *name,
 770                                            enum lsa_SidType type),
 771                               void *private_data)
 772 {
 773         struct winbindd_domain *domain;
 774         struct winbindd_request request;
 775         struct lookupsid_state *s;
 776
 777         domain = find_lookup_domain_from_sid(sid);
 778         if (domain == NULL) {
 779                 DEBUG(5, ("Could not find domain for sid %s\n",
 780                           sid_string_static(sid)));
 781                 cont(private_data, False, NULL, NULL, SID_NAME_UNKNOWN);
 782                 return;
 783         }
 784
 785         ZERO_STRUCT(request);
 786         request.cmd = WINBINDD_LOOKUPSID;
 787         fstrcpy(request.data.sid, sid_string_static(sid));
 788
 789         if ( (s = TALLOC_ZERO_P(mem_ctx, struct lookupsid_state)) == NULL ) {
 790                 DEBUG(0, ("winbindd_lookupsid_async: talloc failed\n"));
 791                 cont(private_data, False, NULL, NULL, SID_NAME_UNKNOWN);
 792                 return;
 793         }
 794
 795         sid_copy( &s->sid, sid );
 796         s->caller_private_data = private_data;
 797
 798         do_async_domain(mem_ctx, domain, &request, lookupsid_recv,
 799                         (void *)cont, s);
 800 }
 801
 802 enum winbindd_result winbindd_dual_lookupsid(struct winbindd_domain *domain,
 803                                              struct winbindd_cli_state *state)
 804 {
 805         enum lsa_SidType type;
 806         DOM_SID sid;
 807         char *name;
 808         char *dom_name;
 809
 810         /* Ensure null termination */
 811         state->request.data.sid[sizeof(state->request.data.sid)-1]='\0';
 812
 813         DEBUG(3, ("[%5lu]: lookupsid %s\n", (unsigned long)state->pid,
 814                   state->request.data.sid));
 815
 816         /* Lookup sid from PDC using lsa_lookup_sids() */
 817
 818         if (!string_to_sid(&sid, state->request.data.sid)) {
 819                 DEBUG(5, ("%s not a SID\n", state->request.data.sid));
 820                 return WINBINDD_ERROR;
 821         }
 822
 823         /* Lookup the sid */
 824
 825         if (!winbindd_lookup_name_by_sid(state->mem_ctx, domain, &sid,
 826                                          &dom_name, &name, &type))
 827         {
 828                 TALLOC_FREE(dom_name);
 829                 TALLOC_FREE(name);
 830                 return WINBINDD_ERROR;
 831         }
 832
 833         fstrcpy(state->response.data.name.dom_name, dom_name);
 834         fstrcpy(state->response.data.name.name, name);
 835         state->response.data.name.type = type;
 836
 837         TALLOC_FREE(dom_name);
 838         TALLOC_FREE(name);
 839         return WINBINDD_OK;
 840 }
 841
 842 /********************************************************************
 843  This is the second callback after contacting the forest root
 844 ********************************************************************/
 845
 846 struct lookupname_state {
 847         char *dom_name;
 848         char *name;
 849         void *caller_private_data;
 850 };
 851
 852
 853 static void lookupname_recv2(TALLOC_CTX *mem_ctx, BOOL success,
 854                             struct winbindd_response *response,
 855                             void *c, void *private_data)
 856 {
 857         void (*cont)(void *priv, BOOL succ, const DOM_SID *sid,
 858                      enum lsa_SidType type) =
 859                 (void (*)(void *, BOOL, const DOM_SID *, enum lsa_SidType))c;
 860         DOM_SID sid;
 861         struct lookupname_state *s = talloc_get_type_abort( private_data,
 862                                                             struct lookupname_state );
 863
 864
 865         if (!success) {
 866                 DEBUG(5, ("Could not trigger lookup_name\n"));
 867                 cont(s->caller_private_data, False, NULL, SID_NAME_UNKNOWN);
 868                 return;
 869         }
 870
 871         if (response->result != WINBINDD_OK) {
 872                 DEBUG(5, ("lookup_name returned an error\n"));
 873                 cont(s->caller_private_data, False, NULL, SID_NAME_UNKNOWN);
 874                 return;
 875         }
 876
 877         if (!string_to_sid(&sid, response->data.sid.sid)) {
 878                 DEBUG(0, ("Could not convert string %s to sid\n",
 879                           response->data.sid.sid));
 880                 cont(s->caller_private_data, False, NULL, SID_NAME_UNKNOWN);
 881                 return;
 882         }
 883
 884         cont(s->caller_private_data, True, &sid,
 885              (enum lsa_SidType)response->data.sid.type);
 886 }
 887
 888 /********************************************************************
 889  This is the first callback after contacting our own domain
 890 ********************************************************************/
 891
 892 static void lookupname_recv(TALLOC_CTX *mem_ctx, BOOL success,
 893                             struct winbindd_response *response,
 894                             void *c, void *private_data)
 895 {
 896         void (*cont)(void *priv, BOOL succ, const DOM_SID *sid,
 897                      enum lsa_SidType type) =
 898                 (void (*)(void *, BOOL, const DOM_SID *, enum lsa_SidType))c;
 899         DOM_SID sid;
 900         struct lookupname_state *s = talloc_get_type_abort( private_data,
 901                                                             struct lookupname_state );
 902
 903         if (!success) {
 904                 DEBUG(5, ("lookupname_recv: lookup_name() failed!\n"));
 905                 cont(s->caller_private_data, False, NULL, SID_NAME_UNKNOWN);
 906                 return;
 907         }
 908
 909         if (response->result != WINBINDD_OK) {
 910                 /* Try again using the forest root */
 911                 struct winbindd_domain *root_domain = find_root_domain();
 912                 struct winbindd_request request;
 913
 914                 if ( !root_domain ) {
 915                         DEBUG(5,("lookupname_recv: unable to determine forest root\n"));
 916                         cont(s->caller_private_data, False, NULL, SID_NAME_UNKNOWN);
 917                         return;
 918                 }
 919
 920                 ZERO_STRUCT(request);
 921                 request.cmd = WINBINDD_LOOKUPNAME;
 922
 923                 fstrcpy( request.data.name.dom_name, s->dom_name );
 924                 fstrcpy( request.data.name.name, s->name );
 925
 926                 do_async_domain(mem_ctx, root_domain, &request, lookupname_recv2,
 927                                 (void *)cont, s);
 928
 929                 return;
 930         }
 931
 932         if (!string_to_sid(&sid, response->data.sid.sid)) {
 933                 DEBUG(0, ("Could not convert string %s to sid\n",
 934                           response->data.sid.sid));
 935                 cont(s->caller_private_data, False, NULL, SID_NAME_UNKNOWN);
 936                 return;
 937         }
 938
 939         cont(s->caller_private_data, True, &sid,
 940              (enum lsa_SidType)response->data.sid.type);
 941 }
 942
 943 /********************************************************************
 944  The lookup name call first contacts a DC in its own domain
 945  and fallbacks to contact a DC in the forest in our domain doesn't
 946  know the name.
 947 ********************************************************************/
 948
 949 void winbindd_lookupname_async(TALLOC_CTX *mem_ctx,
 950                                const char *dom_name, const char *name,
 951                                void (*cont)(void *private_data, BOOL success,
 952                                             const DOM_SID *sid,
 953                                             enum lsa_SidType type),
 954                                enum winbindd_cmd orig_cmd,
 955                                void *private_data)
 956 {
 957         struct winbindd_request request;
 958         struct winbindd_domain *domain;
 959         struct lookupname_state *s;
 960
 961         if ( (domain = find_lookup_domain_from_name(dom_name)) == NULL ) {
 962                 DEBUG(5, ("Could not find domain for name %s\n", dom_name));
 963                 cont(private_data, False, NULL, SID_NAME_UNKNOWN);
 964                 return;
 965         }
 966
 967         ZERO_STRUCT(request);
 968         request.cmd = WINBINDD_LOOKUPNAME;
 969         request.original_cmd = orig_cmd;
 970         fstrcpy(request.data.name.dom_name, dom_name);
 971         fstrcpy(request.data.name.name, name);
 972
 973         if ( (s = TALLOC_ZERO_P(mem_ctx, struct lookupname_state)) == NULL ) {
 974                 DEBUG(0, ("winbindd_lookupname_async: talloc failed\n"));
 975                 cont(private_data, False, NULL, SID_NAME_UNKNOWN);
 976                 return;
 977         }
 978
 979         s->dom_name = talloc_strdup( s, dom_name );
 980         s->name     = talloc_strdup( s, name );
 981         s->caller_private_data = private_data;
 982
 983         do_async_domain(mem_ctx, domain, &request, lookupname_recv,
 984                         (void *)cont, s);
 985 }
 986
 987 enum winbindd_result winbindd_dual_lookupname(struct winbindd_domain *domain,
 988                                               struct winbindd_cli_state *state)
 989 {
 990         enum lsa_SidType type;
 991         char *name_domain, *name_user;
 992         DOM_SID sid;
 993         char *p;
 994
 995         /* Ensure null termination */
 996         state->request.data.name.dom_name[sizeof(state->request.data.name.dom_name)-1]='\0';
 997
 998         /* Ensure null termination */
 999         state->request.data.name.name[sizeof(state->request.data.name.name)-1]='\0';
1000
1001         /* cope with the name being a fully qualified name */
1002         p = strstr(state->request.data.name.name, lp_winbind_separator());
1003         if (p) {
1004                 *p = 0;
1005                 name_domain = state->request.data.name.name;
1006                 name_user = p+1;
1007         } else {
1008                 name_domain = state->request.data.name.dom_name;
1009                 name_user = state->request.data.name.name;
1010         }
1011
1012         DEBUG(3, ("[%5lu]: lookupname %s%s%s\n", (unsigned long)state->pid,
1013                   name_domain, lp_winbind_separator(), name_user));
1014
1015         /* Lookup name from DC using lsa_lookup_names() */
1016         if (!winbindd_lookup_sid_by_name(state->mem_ctx, state->request.original_cmd, domain, name_domain,
1017                                          name_user, &sid, &type)) {
1018                 return WINBINDD_ERROR;
1019         }
1020
1021         sid_to_string(state->response.data.sid.sid, &sid);
1022         state->response.data.sid.type = type;
1023
1024         return WINBINDD_OK;
1025 }
1026
1027 BOOL print_sidlist(TALLOC_CTX *mem_ctx, const DOM_SID *sids,
1028                    size_t num_sids, char **result, ssize_t *len)
1029 {
1030         size_t i;
1031         size_t buflen = 0;
1032
1033         *len = 0;
1034         *result = NULL;
1035         for (i=0; i<num_sids; i++) {
1036                 sprintf_append(mem_ctx, result, len, &buflen,
1037                                "%s\n", sid_string_static(&sids[i]));
1038         }
1039
1040         if ((num_sids != 0) && (*result == NULL)) {
1041                 return False;
1042         }
1043
1044         return True;
1045 }
1046
1047 static BOOL parse_sidlist(TALLOC_CTX *mem_ctx, char *sidstr,
1048                           DOM_SID **sids, size_t *num_sids)
1049 {
1050         char *p, *q;
1051
1052         p = sidstr;
1053         if (p == NULL)
1054                 return False;
1055
1056         while (p[0] != '\0') {
1057                 DOM_SID sid;
1058                 q = strchr(p, '\n');
1059                 if (q == NULL) {
1060                         DEBUG(0, ("Got invalid sidstr: %s\n", p));
1061                         return False;
1062                 }
1063                 *q = '\0';
1064                 q += 1;
1065                 if (!string_to_sid(&sid, p)) {
1066                         DEBUG(0, ("Could not parse sid %s\n", p));
1067                         return False;
1068                 }
1069                 if (!add_sid_to_array(mem_ctx, &sid, sids, num_sids)) {
1070                         return False;
1071                 }
1072                 p = q;
1073         }
1074         return True;
1075 }
1076
1077 static BOOL parse_ridlist(TALLOC_CTX *mem_ctx, char *ridstr,
1078                           uint32 **rids, size_t *num_rids)
1079 {
1080         char *p;
1081
1082         p = ridstr;
1083         if (p == NULL)
1084                 return False;
1085
1086         while (p[0] != '\0') {
1087                 uint32 rid;
1088                 char *q;
1089                 rid = strtoul(p, &q, 10);
1090                 if (*q != '\n') {
1091                         DEBUG(0, ("Got invalid ridstr: %s\n", p));
1092                         return False;
1093                 }
1094                 p = q+1;
1095                 ADD_TO_ARRAY(mem_ctx, uint32, rid, rids, num_rids);
1096         }
1097         return True;
1098 }
1099
1100 enum winbindd_result winbindd_dual_lookuprids(struct winbindd_domain *domain,
1101                                               struct winbindd_cli_state *state)
1102 {
1103         uint32 *rids = NULL;
1104         size_t i, buflen, num_rids = 0;
1105         ssize_t len;
1106         DOM_SID domain_sid;
1107         char *domain_name;
1108         char **names;
1109         enum lsa_SidType *types;
1110         NTSTATUS status;
1111         char *result;
1112
1113         DEBUG(10, ("Looking up RIDs for domain %s (%s)\n",
1114                    state->request.domain_name,
1115                    state->request.data.sid));
1116
1117         if (!parse_ridlist(state->mem_ctx, state->request.extra_data.data,
1118                            &rids, &num_rids)) {
1119                 DEBUG(5, ("Could not parse ridlist\n"));
1120                 return WINBINDD_ERROR;
1121         }
1122
1123         if (!string_to_sid(&domain_sid, state->request.data.sid)) {
1124                 DEBUG(5, ("Could not parse domain sid %s\n",
1125                           state->request.data.sid));
1126                 return WINBINDD_ERROR;
1127         }
1128
1129         status = domain->methods->rids_to_names(domain, state->mem_ctx,
1130                                                 &domain_sid, rids, num_rids,
1131                                                 &domain_name,
1132                                                 &names, &types);
1133
1134         if (!NT_STATUS_IS_OK(status) &&
1135             !NT_STATUS_EQUAL(status, STATUS_SOME_UNMAPPED)) {
1136                 return WINBINDD_ERROR;
1137         }
1138
1139         len = 0;
1140         buflen = 0;
1141         result = NULL;
1142
1143         for (i=0; i<num_rids; i++) {
1144                 sprintf_append(state->mem_ctx, &result, &len, &buflen,
1145                                "%d %s\n", types[i], names[i]);
1146         }
1147
1148         fstrcpy(state->response.data.domain_name, domain_name);
1149
1150         if (result != NULL) {
1151                 state->response.extra_data.data = SMB_STRDUP(result);
1152                 if (!state->response.extra_data.data) {
1153                         return WINBINDD_ERROR;
1154                 }
1155                 state->response.length += len+1;
1156         }
1157
1158         return WINBINDD_OK;
1159 }
1160
1161 static void getsidaliases_recv(TALLOC_CTX *mem_ctx, BOOL success,
1162                                struct winbindd_response *response,
1163                                void *c, void *private_data)
1164 {
1165         void (*cont)(void *priv, BOOL succ,
1166                      DOM_SID *aliases, size_t num_aliases) =
1167                 (void (*)(void *, BOOL, DOM_SID *, size_t))c;
1168         char *aliases_str;
1169         DOM_SID *sids = NULL;
1170         size_t num_sids = 0;
1171
1172         if (!success) {
1173                 DEBUG(5, ("Could not trigger getsidaliases\n"));
1174                 cont(private_data, success, NULL, 0);
1175                 return;
1176         }
1177
1178         if (response->result != WINBINDD_OK) {
1179                 DEBUG(5, ("getsidaliases returned an error\n"));
1180                 cont(private_data, False, NULL, 0);
1181                 return;
1182         }
1183
1184         aliases_str = (char *)response->extra_data.data;
1185
1186         if (aliases_str == NULL) {
1187                 DEBUG(10, ("getsidaliases return 0 SIDs\n"));
1188                 cont(private_data, True, NULL, 0);
1189                 return;
1190         }
1191
1192         if (!parse_sidlist(mem_ctx, aliases_str, &sids, &num_sids)) {
1193                 DEBUG(0, ("Could not parse sids\n"));
1194                 cont(private_data, False, NULL, 0);
1195                 return;
1196         }
1197
1198         SAFE_FREE(response->extra_data.data);
1199
1200         cont(private_data, True, sids, num_sids);
1201 }
1202
1203 void winbindd_getsidaliases_async(struct winbindd_domain *domain,
1204                                   TALLOC_CTX *mem_ctx,
1205                                   const DOM_SID *sids, size_t num_sids,
1206                                   void (*cont)(void *private_data,
1207                                                BOOL success,
1208                                                const DOM_SID *aliases,
1209                                                size_t num_aliases),
1210                                   void *private_data)
1211 {
1212         struct winbindd_request request;
1213         char *sidstr = NULL;
1214         ssize_t len;
1215
1216         if (num_sids == 0) {
1217                 cont(private_data, True, NULL, 0);
1218                 return;
1219         }
1220
1221         if (!print_sidlist(mem_ctx, sids, num_sids, &sidstr, &len)) {
1222                 cont(private_data, False, NULL, 0);
1223                 return;
1224         }
1225
1226         ZERO_STRUCT(request);
1227         request.cmd = WINBINDD_DUAL_GETSIDALIASES;
1228         request.extra_len = len;
1229         request.extra_data.data = sidstr;
1230
1231         do_async_domain(mem_ctx, domain, &request, getsidaliases_recv,
1232                         (void *)cont, private_data);
1233 }
1234
1235 enum winbindd_result winbindd_dual_getsidaliases(struct winbindd_domain *domain,
1236                                                  struct winbindd_cli_state *state)
1237 {
1238         DOM_SID *sids = NULL;
1239         size_t num_sids = 0;
1240         char *sidstr = NULL;
1241         ssize_t len;
1242         size_t i;
1243         uint32 num_aliases;
1244         uint32 *alias_rids;
1245         NTSTATUS result;
1246
1247         DEBUG(3, ("[%5lu]: getsidaliases\n", (unsigned long)state->pid));
1248
1249         sidstr = state->request.extra_data.data;
1250         if (sidstr == NULL) {
1251                 sidstr = talloc_strdup(state->mem_ctx, "\n"); /* No SID */
1252                 if (!sidstr) {
1253                         DEBUG(0, ("Out of memory\n"));
1254                         return WINBINDD_ERROR;
1255                 }
1256         }
1257
1258         DEBUG(10, ("Sidlist: %s\n", sidstr));
1259
1260         if (!parse_sidlist(state->mem_ctx, sidstr, &sids, &num_sids)) {
1261                 DEBUG(0, ("Could not parse SID list: %s\n", sidstr));
1262                 return WINBINDD_ERROR;
1263         }
1264
1265         num_aliases = 0;
1266         alias_rids = NULL;
1267
1268         result = domain->methods->lookup_useraliases(domain,
1269                                                      state->mem_ctx,
1270                                                      num_sids, sids,
1271                                                      &num_aliases,
1272                                                      &alias_rids);
1273
1274         if (!NT_STATUS_IS_OK(result)) {
1275                 DEBUG(3, ("Could not lookup_useraliases: %s\n",
1276                           nt_errstr(result)));
1277                 return WINBINDD_ERROR;
1278         }
1279
1280         num_sids = 0;
1281         sids = NULL;
1282         sidstr = NULL;
1283
1284         DEBUG(10, ("Got %d aliases\n", num_aliases));
1285
1286         for (i=0; i<num_aliases; i++) {
1287                 DOM_SID sid;
1288                 DEBUGADD(10, (" rid %d\n", alias_rids[i]));
1289                 sid_copy(&sid, &domain->sid);
1290                 sid_append_rid(&sid, alias_rids[i]);
1291                 if (!add_sid_to_array(state->mem_ctx, &sid, &sids, &num_sids)) {
1292                         return WINBINDD_ERROR;
1293                 }
1294         }
1295
1296
1297         if (!print_sidlist(state->mem_ctx, sids, num_sids, &sidstr, &len)) {
1298                 DEBUG(0, ("Could not print_sidlist\n"));
1299                 state->response.extra_data.data = NULL;
1300                 return WINBINDD_ERROR;
1301         }
1302
1303         state->response.extra_data.data = NULL;
1304
1305         if (sidstr) {
1306                 state->response.extra_data.data = SMB_STRDUP(sidstr);
1307                 if (!state->response.extra_data.data) {
1308                         DEBUG(0, ("Out of memory\n"));
1309                         return WINBINDD_ERROR;
1310                 }
1311                 DEBUG(10, ("aliases_list: %s\n",
1312                            (char *)state->response.extra_data.data));
1313                 state->response.length += len+1;
1314         }
1315
1316         return WINBINDD_OK;
1317 }
1318
1319 struct gettoken_state {
1320         TALLOC_CTX *mem_ctx;
1321         DOM_SID user_sid;
1322         struct winbindd_domain *alias_domain;
1323         struct winbindd_domain *local_alias_domain;
1324         struct winbindd_domain *builtin_domain;
1325         DOM_SID *sids;
1326         size_t num_sids;
1327         void (*cont)(void *private_data, BOOL success, DOM_SID *sids, size_t num_sids);
1328         void *private_data;
1329 };
1330
1331 static void gettoken_recvdomgroups(TALLOC_CTX *mem_ctx, BOOL success,
1332                                    struct winbindd_response *response,
1333                                    void *c, void *private_data);
1334 static void gettoken_recvaliases(void *private_data, BOOL success,
1335                                  const DOM_SID *aliases,
1336                                  size_t num_aliases);
1337
1338
1339 void winbindd_gettoken_async(TALLOC_CTX *mem_ctx, const DOM_SID *user_sid,
1340                              void (*cont)(void *private_data, BOOL success,
1341                                           DOM_SID *sids, size_t num_sids),
1342                              void *private_data)
1343 {
1344         struct winbindd_domain *domain;
1345         struct winbindd_request request;
1346         struct gettoken_state *state;
1347
1348         state = TALLOC_ZERO_P(mem_ctx, struct gettoken_state);
1349         if (state == NULL) {
1350                 DEBUG(0, ("talloc failed\n"));
1351                 cont(private_data, False, NULL, 0);
1352                 return;
1353         }
1354
1355         state->mem_ctx = mem_ctx;
1356         sid_copy(&state->user_sid, user_sid);
1357         state->alias_domain = find_our_domain();
1358         state->local_alias_domain = find_domain_from_name( get_global_sam_name() );
1359         state->builtin_domain = find_builtin_domain();
1360         state->cont = cont;
1361         state->private_data = private_data;
1362
1363         domain = find_domain_from_sid_noinit(user_sid);
1364         if (domain == NULL) {
1365                 DEBUG(5, ("Could not find domain from SID %s\n",
1366                           sid_string_static(user_sid)));
1367                 cont(private_data, False, NULL, 0);
1368                 return;
1369         }
1370
1371         ZERO_STRUCT(request);
1372         request.cmd = WINBINDD_GETUSERDOMGROUPS;
1373         fstrcpy(request.data.sid, sid_string_static(user_sid));
1374
1375         do_async_domain(mem_ctx, domain, &request, gettoken_recvdomgroups,
1376                         NULL, state);
1377 }
1378
1379 static void gettoken_recvdomgroups(TALLOC_CTX *mem_ctx, BOOL success,
1380                                    struct winbindd_response *response,
1381                                    void *c, void *private_data)
1382 {
1383         struct gettoken_state *state =
1384                 talloc_get_type_abort(private_data, struct gettoken_state);
1385         char *sids_str;
1386
1387         if (!success) {
1388                 DEBUG(10, ("Could not get domain groups\n"));
1389                 state->cont(state->private_data, False, NULL, 0);
1390                 return;
1391         }
1392
1393         sids_str = (char *)response->extra_data.data;
1394
1395         if (sids_str == NULL) {
1396                 /* This could be normal if we are dealing with a
1397                    local user and local groups */
1398
1399                 if ( !sid_check_is_in_our_domain( &state->user_sid ) ) {
1400                         DEBUG(10, ("Received no domain groups\n"));
1401                         state->cont(state->private_data, True, NULL, 0);
1402                         return;
1403                 }
1404         }
1405
1406         state->sids = NULL;
1407         state->num_sids = 0;
1408
1409         if (!add_sid_to_array(mem_ctx, &state->user_sid, &state->sids,
1410                          &state->num_sids)) {
1411                 DEBUG(0, ("Out of memory\n"));
1412                 state->cont(state->private_data, False, NULL, 0);
1413                 return;
1414         }
1415
1416         if (sids_str && !parse_sidlist(mem_ctx, sids_str, &state->sids,
1417                            &state->num_sids)) {
1418                 DEBUG(0, ("Could not parse sids\n"));
1419                 state->cont(state->private_data, False, NULL, 0);
1420                 return;
1421         }
1422
1423         SAFE_FREE(response->extra_data.data);
1424
1425         if (state->alias_domain == NULL) {
1426                 DEBUG(10, ("Don't expand domain local groups\n"));
1427                 state->cont(state->private_data, True, state->sids,
1428                             state->num_sids);
1429                 return;
1430         }
1431
1432         winbindd_getsidaliases_async(state->alias_domain, mem_ctx,
1433                                      state->sids, state->num_sids,
1434                                      gettoken_recvaliases, state);
1435 }
1436
1437 static void gettoken_recvaliases(void *private_data, BOOL success,
1438                                  const DOM_SID *aliases,
1439                                  size_t num_aliases)
1440 {
1441         struct gettoken_state *state = (struct gettoken_state *)private_data;
1442         size_t i;
1443
1444         if (!success) {
1445                 DEBUG(10, ("Could not receive domain local groups\n"));
1446                 state->cont(state->private_data, False, NULL, 0);
1447                 return;
1448         }
1449
1450         for (i=0; i<num_aliases; i++) {
1451                 if (!add_sid_to_array(state->mem_ctx, &aliases[i],
1452                                  &state->sids, &state->num_sids)) {
1453                         DEBUG(0, ("Out of memory\n"));
1454                         state->cont(state->private_data, False, NULL, 0);
1455                         return;
1456                 }
1457         }
1458
1459         if (state->local_alias_domain != NULL) {
1460                 struct winbindd_domain *local_domain = state->local_alias_domain;
1461                 DEBUG(10, ("Expanding our own local groups\n"));
1462                 state->local_alias_domain = NULL;
1463                 winbindd_getsidaliases_async(local_domain, state->mem_ctx,
1464                                              state->sids, state->num_sids,
1465                                              gettoken_recvaliases, state);
1466                 return;
1467         }
1468
1469         if (state->builtin_domain != NULL) {
1470                 struct winbindd_domain *builtin_domain = state->builtin_domain;
1471                 DEBUG(10, ("Expanding our own BUILTIN groups\n"));
1472                 state->builtin_domain = NULL;
1473                 winbindd_getsidaliases_async(builtin_domain, state->mem_ctx,
1474                                              state->sids, state->num_sids,
1475                                              gettoken_recvaliases, state);
1476                 return;
1477         }
1478
1479         state->cont(state->private_data, True, state->sids, state->num_sids);
1480 }
1481
1482 static void query_user_recv(TALLOC_CTX *mem_ctx, BOOL success,
1483                             struct winbindd_response *response,
1484                             void *c, void *private_data)
1485 {
1486         void (*cont)(void *priv, BOOL succ, const char *acct_name,
1487                      const char *full_name, const char *homedir,
1488                      const char *shell, uint32 gid, uint32 group_rid) =
1489                 (void (*)(void *, BOOL, const char *, const char *,
1490                           const char *, const char *, uint32, uint32))c;
1491
1492         if (!success) {
1493                 DEBUG(5, ("Could not trigger query_user\n"));
1494                 cont(private_data, False, NULL, NULL, NULL, NULL, -1, -1);
1495                 return;
1496         }
1497
1498         if (response->result != WINBINDD_OK) {
1499                 DEBUG(5, ("query_user returned an error\n"));
1500                 cont(private_data, False, NULL, NULL, NULL, NULL, -1, -1);
1501                 return;
1502         }
1503
1504         cont(private_data, True, response->data.user_info.acct_name,
1505              response->data.user_info.full_name,
1506              response->data.user_info.homedir,
1507              response->data.user_info.shell,
1508              response->data.user_info.primary_gid,
1509              response->data.user_info.group_rid);
1510 }
1511
1512 void query_user_async(TALLOC_CTX *mem_ctx, struct winbindd_domain *domain,
1513                       const DOM_SID *sid,
1514                       void (*cont)(void *private_data, BOOL success,
1515                                    const char *acct_name,
1516                                    const char *full_name,
1517                                    const char *homedir,
1518                                    const char *shell,
1519                                    gid_t gid,
1520                                    uint32 group_rid),
1521                       void *private_data)
1522 {
1523         struct winbindd_request request;
1524         ZERO_STRUCT(request);
1525         request.cmd = WINBINDD_DUAL_USERINFO;
1526         sid_to_string(request.data.sid, sid);
1527         do_async_domain(mem_ctx, domain, &request, query_user_recv,
1528                         (void *)cont, private_data);
1529 }
1530
1531 /* The following uid2sid/gid2sid functions has been contributed by
1532  * Keith Reynolds <Keith.Reynolds@centrify.com> */
1533
1534 static void winbindd_uid2sid_recv(TALLOC_CTX *mem_ctx, BOOL success,
1535                                   struct winbindd_response *response,
1536                                   void *c, void *private_data)
1537 {
1538         void (*cont)(void *priv, BOOL succ, const char *sid) =
1539                 (void (*)(void *, BOOL, const char *))c;
1540
1541         if (!success) {
1542                 DEBUG(5, ("Could not trigger uid2sid\n"));
1543                 cont(private_data, False, NULL);
1544                 return;
1545         }
1546
1547         if (response->result != WINBINDD_OK) {
1548                 DEBUG(5, ("uid2sid returned an error\n"));
1549                 cont(private_data, False, NULL);
1550                 return;
1551         }
1552
1553         cont(private_data, True, response->data.sid.sid);
1554 }
1555
1556 void winbindd_uid2sid_async(TALLOC_CTX *mem_ctx, uid_t uid,
1557                             void (*cont)(void *private_data, BOOL success, const char *sid),
1558                             void *private_data)
1559 {
1560         struct winbindd_request request;
1561
1562         ZERO_STRUCT(request);
1563         request.cmd = WINBINDD_DUAL_UID2SID;
1564         request.data.uid = uid;
1565         do_async(mem_ctx, idmap_child(), &request, winbindd_uid2sid_recv,
1566                  (void *)cont, private_data);
1567 }
1568
1569 enum winbindd_result winbindd_dual_uid2sid(struct winbindd_domain *domain,
1570                                            struct winbindd_cli_state *state)
1571 {
1572         DOM_SID sid;
1573         NTSTATUS result;
1574
1575         DEBUG(3,("[%5lu]: uid to sid %lu\n",
1576                  (unsigned long)state->pid,
1577                  (unsigned long) state->request.data.uid));
1578
1579         /* Find sid for this uid and return it, possibly ask the slow remote idmap */
1580         result = idmap_uid_to_sid(&sid, state->request.data.uid);
1581
1582         if (NT_STATUS_IS_OK(result)) {
1583                 sid_to_string(state->response.data.sid.sid, &sid);
1584                 state->response.data.sid.type = SID_NAME_USER;
1585                 return WINBINDD_OK;
1586         }
1587
1588         return WINBINDD_ERROR;
1589 }
1590
1591 static void winbindd_gid2sid_recv(TALLOC_CTX *mem_ctx, BOOL success,
1592                                   struct winbindd_response *response,
1593                                   void *c, void *private_data)
1594 {
1595         void (*cont)(void *priv, BOOL succ, const char *sid) =
1596                 (void (*)(void *, BOOL, const char *))c;
1597
1598         if (!success) {
1599                 DEBUG(5, ("Could not trigger gid2sid\n"));
1600                 cont(private_data, False, NULL);
1601                 return;
1602         }
1603
1604         if (response->result != WINBINDD_OK) {
1605                 DEBUG(5, ("gid2sid returned an error\n"));
1606                 cont(private_data, False, NULL);
1607                 return;
1608         }
1609
1610         cont(private_data, True, response->data.sid.sid);
1611 }
1612
1613 void winbindd_gid2sid_async(TALLOC_CTX *mem_ctx, gid_t gid,
1614                             void (*cont)(void *private_data, BOOL success, const char *sid),
1615                             void *private_data)
1616 {
1617         struct winbindd_request request;
1618
1619         ZERO_STRUCT(request);
1620         request.cmd = WINBINDD_DUAL_GID2SID;
1621         request.data.gid = gid;
1622         do_async(mem_ctx, idmap_child(), &request, winbindd_gid2sid_recv,
1623                  (void *)cont, private_data);
1624 }
1625
1626 enum winbindd_result winbindd_dual_gid2sid(struct winbindd_domain *domain,
1627                                            struct winbindd_cli_state *state)
1628 {
1629         DOM_SID sid;
1630         NTSTATUS result;
1631
1632         DEBUG(3,("[%5lu]: gid %lu to sid\n",
1633                 (unsigned long)state->pid,
1634                 (unsigned long) state->request.data.gid));
1635
1636         /* Find sid for this gid and return it, possibly ask the slow remote idmap */
1637         result = idmap_gid_to_sid(&sid, state->request.data.gid);
1638
1639         if (NT_STATUS_IS_OK(result)) {
1640                 sid_to_string(state->response.data.sid.sid, &sid);
1641                 DEBUG(10, ("[%5lu]: retrieved sid: %s\n",
1642                            (unsigned long)state->pid,
1643                            state->response.data.sid.sid));
1644                 state->response.data.sid.type = SID_NAME_DOM_GRP;
1645                 return WINBINDD_OK;
1646         }
1647
1648         return WINBINDD_ERROR;
1649 }
1650
1651 static void winbindd_dump_id_maps_recv(TALLOC_CTX *mem_ctx, BOOL success,
1652                                struct winbindd_response *response,
1653                                void *c, void *private_data)
1654 {
1655         void (*cont)(void *priv, BOOL succ) =
1656                 (void (*)(void *, BOOL))c;
1657
1658         if (!success) {
1659                 DEBUG(5, ("Could not trigger a map dump\n"));
1660                 cont(private_data, False);
1661                 return;
1662         }
1663
1664         if (response->result != WINBINDD_OK) {
1665                 DEBUG(5, ("idmap dump maps returned an error\n"));
1666                 cont(private_data, False);
1667                 return;
1668         }
1669
1670         cont(private_data, True);
1671 }
1672
1673 void winbindd_dump_maps_async(TALLOC_CTX *mem_ctx, void *data, int size,
1674                          void (*cont)(void *private_data, BOOL success),
1675                          void *private_data)
1676 {
1677         struct winbindd_request request;
1678         ZERO_STRUCT(request);
1679         request.cmd = WINBINDD_DUAL_DUMP_MAPS;
1680         request.extra_data.data = (char *)data;
1681         request.extra_len = size;
1682         do_async(mem_ctx, idmap_child(), &request, winbindd_dump_id_maps_recv,
1683                  (void *)cont, private_data);
1684 }
1685
1686 enum winbindd_result winbindd_dual_dump_maps(struct winbindd_domain *domain,
1687                                            struct winbindd_cli_state *state)
1688 {
1689         DEBUG(3, ("[%5lu]: dual dump maps\n", (unsigned long)state->pid));
1690
1691         idmap_dump_maps((char *)state->request.extra_data.data);
1692
1693         return WINBINDD_OK;
1694 }
1695