source/winbindd/winbindd_idmap.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    Copyright (C) Simo Sorce 2007
   9
  10    The helpers always consist of three functions:
  11
  12    * A request setup function that takes the necessary parameters together
  13      with a continuation function that is to be called upon completion
  14
  15    * A private continuation function that is internal only. This is to be
  16      called by the lower-level functions in do_async(). Its only task is to
  17      properly call the continuation function named above.
  18
  19    * A worker function that is called inside the appropriate child process.
  20
  21    This program is free software; you can redistribute it and/or modify
  22    it under the terms of the GNU General Public License as published by
  23    the Free Software Foundation; either version 3 of the License, or
  24    (at your option) any later version.
  25
  26    This program is distributed in the hope that it will be useful,
  27    but WITHOUT ANY WARRANTY; without even the implied warranty of
  28    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29    GNU General Public License for more details.
  30
  31    You should have received a copy of the GNU General Public License
  32    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  33 */
  34
  35 #include "includes.h"
  36 #include "winbindd.h"
  37
  38 #undef DBGC_CLASS
  39 #define DBGC_CLASS DBGC_WINBIND
  40
  41 static const struct winbindd_child_dispatch_table idmap_dispatch_table[];
  42
  43 static struct winbindd_child static_idmap_child;
  44
  45 void init_idmap_child(void)
  46 {
  47         setup_domain_child(NULL,
  48                            &static_idmap_child,
  49                            idmap_dispatch_table,
  50                            "idmap");
  51 }
  52
  53 struct winbindd_child *idmap_child(void)
  54 {
  55         return &static_idmap_child;
  56 }
  57
  58 static void winbindd_set_mapping_recv(TALLOC_CTX *mem_ctx, BOOL success,
  59                                    struct winbindd_response *response,
  60                                    void *c, void *private_data)
  61 {
  62         void (*cont)(void *priv, BOOL succ) = (void (*)(void *, BOOL))c;
  63
  64         if (!success) {
  65                 DEBUG(5, ("Could not trigger idmap_set_mapping\n"));
  66                 cont(private_data, False);
  67                 return;
  68         }
  69
  70         if (response->result != WINBINDD_OK) {
  71                 DEBUG(5, ("idmap_set_mapping returned an error\n"));
  72                 cont(private_data, False);
  73                 return;
  74         }
  75
  76         cont(private_data, True);
  77 }
  78
  79 void winbindd_set_mapping_async(TALLOC_CTX *mem_ctx, const struct id_map *map,
  80                              void (*cont)(void *private_data, BOOL success),
  81                              void *private_data)
  82 {
  83         struct winbindd_request request;
  84         ZERO_STRUCT(request);
  85         request.cmd = WINBINDD_DUAL_SET_MAPPING;
  86         request.data.dual_idmapset.id = map->xid.id;
  87         request.data.dual_idmapset.type = map->xid.type;
  88         sid_to_string(request.data.dual_idmapset.sid, map->sid);
  89
  90         do_async(mem_ctx, idmap_child(), &request, winbindd_set_mapping_recv,
  91                  (void *)cont, private_data);
  92 }
  93
  94 enum winbindd_result winbindd_dual_set_mapping(struct winbindd_domain *domain,
  95                                             struct winbindd_cli_state *state)
  96 {
  97         struct id_map map;
  98         DOM_SID sid;
  99         NTSTATUS result;
 100
 101         DEBUG(3, ("[%5lu]: dual_idmapset\n", (unsigned long)state->pid));
 102
 103         if (!string_to_sid(&sid, state->request.data.dual_idmapset.sid))
 104                 return WINBINDD_ERROR;
 105
 106         map.sid = &sid;
 107         map.xid.id = state->request.data.dual_idmapset.id;
 108         map.xid.type = state->request.data.dual_idmapset.type;
 109         map.status = ID_MAPPED;
 110
 111         result = idmap_set_mapping(&map);
 112         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 113 }
 114
 115 static void winbindd_set_hwm_recv(TALLOC_CTX *mem_ctx, BOOL success,
 116                                    struct winbindd_response *response,
 117                                    void *c, void *private_data)
 118 {
 119         void (*cont)(void *priv, BOOL succ) = (void (*)(void *, BOOL))c;
 120
 121         if (!success) {
 122                 DEBUG(5, ("Could not trigger idmap_set_hwm\n"));
 123                 cont(private_data, False);
 124                 return;
 125         }
 126
 127         if (response->result != WINBINDD_OK) {
 128                 DEBUG(5, ("idmap_set_hwm returned an error\n"));
 129                 cont(private_data, False);
 130                 return;
 131         }
 132
 133         cont(private_data, True);
 134 }
 135
 136 void winbindd_set_hwm_async(TALLOC_CTX *mem_ctx, const struct unixid *xid,
 137                              void (*cont)(void *private_data, BOOL success),
 138                              void *private_data)
 139 {
 140         struct winbindd_request request;
 141         ZERO_STRUCT(request);
 142         request.cmd = WINBINDD_DUAL_SET_HWM;
 143         request.data.dual_idmapset.id = xid->id;
 144         request.data.dual_idmapset.type = xid->type;
 145
 146         do_async(mem_ctx, idmap_child(), &request, winbindd_set_hwm_recv,
 147                  (void *)cont, private_data);
 148 }
 149
 150 enum winbindd_result winbindd_dual_set_hwm(struct winbindd_domain *domain,
 151                                             struct winbindd_cli_state *state)
 152 {
 153         struct unixid xid;
 154         NTSTATUS result;
 155
 156         DEBUG(3, ("[%5lu]: dual_set_hwm\n", (unsigned long)state->pid));
 157
 158         xid.id = state->request.data.dual_idmapset.id;
 159         xid.type = state->request.data.dual_idmapset.type;
 160
 161         switch (xid.type) {
 162         case ID_TYPE_UID:
 163                 result = idmap_set_uid_hwm(&xid);
 164                 break;
 165         case ID_TYPE_GID:
 166                 result = idmap_set_gid_hwm(&xid);
 167                 break;
 168         default:
 169                 return WINBINDD_ERROR;
 170         }
 171         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 172 }
 173
 174 static void winbindd_sids2xids_recv(TALLOC_CTX *mem_ctx, BOOL success,
 175                                struct winbindd_response *response,
 176                                void *c, void *private_data)
 177 {
 178         void (*cont)(void *priv, BOOL succ, void *, int) =
 179                 (void (*)(void *, BOOL, void *, int))c;
 180
 181         if (!success) {
 182                 DEBUG(5, ("Could not trigger sids2xids\n"));
 183                 cont(private_data, False, NULL, 0);
 184                 return;
 185         }
 186
 187         if (response->result != WINBINDD_OK) {
 188                 DEBUG(5, ("sids2xids returned an error\n"));
 189                 cont(private_data, False, NULL, 0);
 190                 return;
 191         }
 192
 193         cont(private_data, True, response->extra_data.data, response->length - sizeof(response));
 194 }
 195
 196 void winbindd_sids2xids_async(TALLOC_CTX *mem_ctx, void *sids, int size,
 197                          void (*cont)(void *private_data, BOOL success, void *data, int len),
 198                          void *private_data)
 199 {
 200         struct winbindd_request request;
 201         ZERO_STRUCT(request);
 202         request.cmd = WINBINDD_DUAL_SIDS2XIDS;
 203         request.extra_data.data = (char *)sids;
 204         request.extra_len = size;
 205         do_async(mem_ctx, idmap_child(), &request, winbindd_sids2xids_recv,
 206                  (void *)cont, private_data);
 207 }
 208
 209 enum winbindd_result winbindd_dual_sids2xids(struct winbindd_domain *domain,
 210                                            struct winbindd_cli_state *state)
 211 {
 212         DOM_SID *sids;
 213         struct unixid *xids;
 214         struct id_map **ids;
 215         NTSTATUS result;
 216         int num, i;
 217
 218         DEBUG(3, ("[%5lu]: sids to unix ids\n", (unsigned long)state->pid));
 219
 220         if (state->request.extra_len == 0) {
 221                 DEBUG(0, ("Invalid buffer size!\n"));
 222                 return WINBINDD_ERROR;
 223         }
 224
 225         sids = (DOM_SID *)state->request.extra_data.data;
 226         num = state->request.extra_len / sizeof(DOM_SID);
 227
 228         ids = TALLOC_ZERO_ARRAY(state->mem_ctx, struct id_map *, num + 1);
 229         if ( ! ids) {
 230                 DEBUG(0, ("Out of memory!\n"));
 231                 return WINBINDD_ERROR;
 232         }
 233         for (i = 0; i < num; i++) {
 234                 ids[i] = TALLOC_P(ids, struct id_map);
 235                 if ( ! ids[i]) {
 236                         DEBUG(0, ("Out of memory!\n"));
 237                         talloc_free(ids);
 238                         return WINBINDD_ERROR;
 239                 }
 240                 ids[i]->sid = &sids[i];
 241         }
 242
 243         result = idmap_sids_to_unixids(ids);
 244
 245         if (NT_STATUS_IS_OK(result)) {
 246
 247                 xids = SMB_MALLOC_ARRAY(struct unixid, num);
 248                 if ( ! xids) {
 249                         DEBUG(0, ("Out of memory!\n"));
 250                         talloc_free(ids);
 251                         return WINBINDD_ERROR;
 252                 }
 253
 254                 for (i = 0; i < num; i++) {
 255                         if (ids[i]->status == ID_MAPPED) {
 256                                 xids[i].type = ids[i]->xid.type;
 257                                 xids[i].id = ids[i]->xid.id;
 258                         } else {
 259                                 xids[i].type = -1;
 260                         }
 261                 }
 262
 263                 state->response.length = sizeof(state->response) + (sizeof(struct unixid) * num);
 264                 state->response.extra_data.data = xids;
 265
 266         } else {
 267                 DEBUG (2, ("idmap_sids_to_unixids returned an error: 0x%08x\n", NT_STATUS_V(result)));
 268                 talloc_free(ids);
 269                 return WINBINDD_ERROR;
 270         }
 271
 272         talloc_free(ids);
 273         return WINBINDD_OK;
 274 }
 275
 276 static void winbindd_sid2uid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 277                                struct winbindd_response *response,
 278                                void *c, void *private_data)
 279 {
 280         void (*cont)(void *priv, BOOL succ, uid_t uid) =
 281                 (void (*)(void *, BOOL, uid_t))c;
 282
 283         if (!success) {
 284                 DEBUG(5, ("Could not trigger sid2uid\n"));
 285                 cont(private_data, False, 0);
 286                 return;
 287         }
 288
 289         if (response->result != WINBINDD_OK) {
 290                 DEBUG(5, ("sid2uid returned an error\n"));
 291                 cont(private_data, False, 0);
 292                 return;
 293         }
 294
 295         cont(private_data, True, response->data.uid);
 296 }
 297
 298 void winbindd_sid2uid_async(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
 299                          void (*cont)(void *private_data, BOOL success, uid_t uid),
 300                          void *private_data)
 301 {
 302         struct winbindd_request request;
 303         ZERO_STRUCT(request);
 304         request.cmd = WINBINDD_DUAL_SID2UID;
 305         sid_to_string(request.data.dual_sid2id.sid, sid);
 306         do_async(mem_ctx, idmap_child(), &request, winbindd_sid2uid_recv,
 307                  (void *)cont, private_data);
 308 }
 309
 310 enum winbindd_result winbindd_dual_sid2uid(struct winbindd_domain *domain,
 311                                            struct winbindd_cli_state *state)
 312 {
 313         DOM_SID sid;
 314         NTSTATUS result;
 315
 316         DEBUG(3, ("[%5lu]: sid to uid %s\n", (unsigned long)state->pid,
 317                   state->request.data.dual_sid2id.sid));
 318
 319         if (!string_to_sid(&sid, state->request.data.dual_sid2id.sid)) {
 320                 DEBUG(1, ("Could not get convert sid %s from string\n",
 321                           state->request.data.dual_sid2id.sid));
 322                 return WINBINDD_ERROR;
 323         }
 324
 325         /* Find uid for this sid and return it, possibly ask the slow remote idmap */
 326
 327         result = idmap_sid_to_uid(&sid, &(state->response.data.uid));
 328
 329         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 330 }
 331
 332 #if 0   /* not used */
 333 static void uid2name_recv(TALLOC_CTX *mem_ctx, BOOL success,
 334                           struct winbindd_response *response,
 335                           void *c, void *private_data);
 336
 337 void winbindd_uid2name_async(TALLOC_CTX *mem_ctx, uid_t uid,
 338                              void (*cont)(void *private_data, BOOL success,
 339                                           const char *name),
 340                              void *private_data)
 341 {
 342         struct winbindd_request request;
 343         ZERO_STRUCT(request);
 344         request.cmd = WINBINDD_DUAL_UID2NAME;
 345         request.data.uid = uid;
 346         do_async(mem_ctx, idmap_child(), &request, uid2name_recv,
 347                  (void *)cont, private_data);
 348 }
 349 #endif  /* not used */
 350
 351 enum winbindd_result winbindd_dual_uid2name(struct winbindd_domain *domain,
 352                                             struct winbindd_cli_state *state)
 353 {
 354         struct passwd *pw;
 355
 356         DEBUG(3, ("[%5lu]: uid2name %lu\n", (unsigned long)state->pid,
 357                   (unsigned long)state->request.data.uid));
 358
 359         pw = getpwuid(state->request.data.uid);
 360         if (pw == NULL) {
 361                 DEBUG(5, ("User %lu not found\n",
 362                           (unsigned long)state->request.data.uid));
 363                 return WINBINDD_ERROR;
 364         }
 365
 366         fstrcpy(state->response.data.name.name, pw->pw_name);
 367         return WINBINDD_OK;
 368 }
 369
 370 #if 0   /* not used */
 371 static void uid2name_recv(TALLOC_CTX *mem_ctx, BOOL success,
 372                           struct winbindd_response *response,
 373                           void *c, void *private_data)
 374 {
 375         void (*cont)(void *priv, BOOL succ, const char *name) =
 376                 (void (*)(void *, BOOL, const char *))c;
 377
 378         if (!success) {
 379                 DEBUG(5, ("Could not trigger uid2name\n"));
 380                 cont(private_data, False, NULL);
 381                 return;
 382         }
 383
 384         if (response->result != WINBINDD_OK) {
 385                 DEBUG(5, ("uid2name returned an error\n"));
 386                 cont(private_data, False, NULL);
 387                 return;
 388         }
 389
 390         cont(private_data, True, response->data.name.name);
 391 }
 392
 393 static void name2uid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 394                           struct winbindd_response *response,
 395                           void *c, void *private_data);
 396
 397 static void winbindd_name2uid_async(TALLOC_CTX *mem_ctx, const char *name,
 398                                     void (*cont)(void *private_data, BOOL success,
 399                                                  uid_t uid),
 400                                     void *private_data)
 401 {
 402         struct winbindd_request request;
 403         ZERO_STRUCT(request);
 404         request.cmd = WINBINDD_DUAL_NAME2UID;
 405         fstrcpy(request.data.username, name);
 406         do_async(mem_ctx, idmap_child(), &request, name2uid_recv,
 407                  (void *)cont, private_data);
 408 }
 409 #endif  /* not used */
 410
 411 enum winbindd_result winbindd_dual_name2uid(struct winbindd_domain *domain,
 412                                             struct winbindd_cli_state *state)
 413 {
 414         struct passwd *pw;
 415
 416         /* Ensure null termination */
 417         state->request.data.username
 418                 [sizeof(state->request.data.username)-1] = '\0';
 419
 420         DEBUG(3, ("[%5lu]: name2uid %s\n", (unsigned long)state->pid,
 421                   state->request.data.username));
 422
 423         pw = getpwnam(state->request.data.username);
 424         if (pw == NULL) {
 425                 return WINBINDD_ERROR;
 426         }
 427
 428         state->response.data.uid = pw->pw_uid;
 429         return WINBINDD_OK;
 430 }
 431
 432 #if 0   /* not used */
 433 static void name2uid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 434                           struct winbindd_response *response,
 435                           void *c, void *private_data)
 436 {
 437         void (*cont)(void *priv, BOOL succ, uid_t uid) =
 438                 (void (*)(void *, BOOL, uid_t))c;
 439
 440         if (!success) {
 441                 DEBUG(5, ("Could not trigger name2uid\n"));
 442                 cont(private_data, False, 0);
 443                 return;
 444         }
 445
 446         if (response->result != WINBINDD_OK) {
 447                 DEBUG(5, ("name2uid returned an error\n"));
 448                 cont(private_data, False, 0);
 449                 return;
 450         }
 451
 452         cont(private_data, True, response->data.uid);
 453 }
 454 #endif  /* not used */
 455
 456 static void winbindd_sid2gid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 457                                struct winbindd_response *response,
 458                                void *c, void *private_data)
 459 {
 460         void (*cont)(void *priv, BOOL succ, gid_t gid) =
 461                 (void (*)(void *, BOOL, gid_t))c;
 462
 463         if (!success) {
 464                 DEBUG(5, ("Could not trigger sid2gid\n"));
 465                 cont(private_data, False, 0);
 466                 return;
 467         }
 468
 469         if (response->result != WINBINDD_OK) {
 470                 DEBUG(5, ("sid2gid returned an error\n"));
 471                 cont(private_data, False, 0);
 472                 return;
 473         }
 474
 475         cont(private_data, True, response->data.gid);
 476 }
 477
 478 void winbindd_sid2gid_async(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
 479                          void (*cont)(void *private_data, BOOL success, gid_t gid),
 480                          void *private_data)
 481 {
 482         struct winbindd_request request;
 483         ZERO_STRUCT(request);
 484         request.cmd = WINBINDD_DUAL_SID2GID;
 485         sid_to_string(request.data.dual_sid2id.sid, sid);
 486
 487         DEBUG(7,("winbindd_sid2gid_async: Resolving %s to a gid\n",
 488                 request.data.dual_sid2id.sid));
 489
 490         do_async(mem_ctx, idmap_child(), &request, winbindd_sid2gid_recv,
 491                  (void *)cont, private_data);
 492 }
 493
 494 enum winbindd_result winbindd_dual_sid2gid(struct winbindd_domain *domain,
 495                                            struct winbindd_cli_state *state)
 496 {
 497         DOM_SID sid;
 498         NTSTATUS result;
 499
 500         DEBUG(3, ("[%5lu]: sid to gid %s\n", (unsigned long)state->pid,
 501                   state->request.data.dual_sid2id.sid));
 502
 503         if (!string_to_sid(&sid, state->request.data.dual_sid2id.sid)) {
 504                 DEBUG(1, ("Could not get convert sid %s from string\n",
 505                           state->request.data.dual_sid2id.sid));
 506                 return WINBINDD_ERROR;
 507         }
 508
 509         /* Find gid for this sid and return it, possibly ask the slow remote idmap */
 510
 511         result = idmap_sid_to_gid(&sid, &state->response.data.gid);
 512
 513         DEBUG(10, ("winbindd_dual_sid2gid: 0x%08x - %s - %u\n", NT_STATUS_V(result), sid_string_static(&sid), state->response.data.gid));
 514
 515         return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
 516 }
 517
 518 static void gid2name_recv(TALLOC_CTX *mem_ctx, BOOL success,
 519                           struct winbindd_response *response,
 520                           void *c, void *private_data)
 521 {
 522         void (*cont)(void *priv, BOOL succ, const char *name) =
 523                 (void (*)(void *, BOOL, const char *))c;
 524
 525         if (!success) {
 526                 DEBUG(5, ("Could not trigger gid2name\n"));
 527                 cont(private_data, False, NULL);
 528                 return;
 529         }
 530
 531         if (response->result != WINBINDD_OK) {
 532                 DEBUG(5, ("gid2name returned an error\n"));
 533                 cont(private_data, False, NULL);
 534                 return;
 535         }
 536
 537         cont(private_data, True, response->data.name.name);
 538 }
 539
 540 void winbindd_gid2name_async(TALLOC_CTX *mem_ctx, gid_t gid,
 541                              void (*cont)(void *private_data, BOOL success,
 542                                           const char *name),
 543                              void *private_data)
 544 {
 545         struct winbindd_request request;
 546         ZERO_STRUCT(request);
 547         request.cmd = WINBINDD_DUAL_GID2NAME;
 548         request.data.gid = gid;
 549         do_async(mem_ctx, idmap_child(), &request, gid2name_recv,
 550                  (void *)cont, private_data);
 551 }
 552
 553 enum winbindd_result winbindd_dual_gid2name(struct winbindd_domain *domain,
 554                                             struct winbindd_cli_state *state)
 555 {
 556         struct group *gr;
 557
 558         DEBUG(3, ("[%5lu]: gid2name %lu\n", (unsigned long)state->pid,
 559                   (unsigned long)state->request.data.gid));
 560
 561         gr = getgrgid(state->request.data.gid);
 562         if (gr == NULL)
 563                 return WINBINDD_ERROR;
 564
 565         fstrcpy(state->response.data.name.name, gr->gr_name);
 566         return WINBINDD_OK;
 567 }
 568
 569 #if 0   /* not used */
 570 static void name2gid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 571                           struct winbindd_response *response,
 572                           void *c, void *private_data);
 573
 574 static void winbindd_name2gid_async(TALLOC_CTX *mem_ctx, const char *name,
 575                                     void (*cont)(void *private_data, BOOL success,
 576                                                  gid_t gid),
 577                                     void *private_data)
 578 {
 579         struct winbindd_request request;
 580         ZERO_STRUCT(request);
 581         request.cmd = WINBINDD_DUAL_NAME2GID;
 582         fstrcpy(request.data.groupname, name);
 583         do_async(mem_ctx, idmap_child(), &request, name2gid_recv,
 584                  (void *)cont, private_data);
 585 }
 586 #endif  /* not used */
 587
 588 enum winbindd_result winbindd_dual_name2gid(struct winbindd_domain *domain,
 589                                             struct winbindd_cli_state *state)
 590 {
 591         struct group *gr;
 592
 593         /* Ensure null termination */
 594         state->request.data.groupname
 595                 [sizeof(state->request.data.groupname)-1] = '\0';
 596
 597         DEBUG(3, ("[%5lu]: name2gid %s\n", (unsigned long)state->pid,
 598                   state->request.data.groupname));
 599
 600         gr = getgrnam(state->request.data.groupname);
 601         if (gr == NULL) {
 602                 return WINBINDD_ERROR;
 603         }
 604
 605         state->response.data.gid = gr->gr_gid;
 606         return WINBINDD_OK;
 607 }
 608
 609 #if 0   /* not used */
 610 static void name2gid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 611                           struct winbindd_response *response,
 612                           void *c, void *private_data)
 613 {
 614         void (*cont)(void *priv, BOOL succ, gid_t gid) =
 615                 (void (*)(void *, BOOL, gid_t))c;
 616
 617         if (!success) {
 618                 DEBUG(5, ("Could not trigger name2gid\n"));
 619                 cont(private_data, False, 0);
 620                 return;
 621         }
 622
 623         if (response->result != WINBINDD_OK) {
 624                 DEBUG(5, ("name2gid returned an error\n"));
 625                 cont(private_data, False, 0);
 626                 return;
 627         }
 628
 629         cont(private_data, True, response->data.gid);
 630 }
 631 #endif  /* not used */
 632
 633 /* The following uid2sid/gid2sid functions has been contributed by
 634  * Keith Reynolds <Keith.Reynolds@centrify.com> */
 635
 636 static void winbindd_uid2sid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 637                                   struct winbindd_response *response,
 638                                   void *c, void *private_data)
 639 {
 640         void (*cont)(void *priv, BOOL succ, const char *sid) =
 641                 (void (*)(void *, BOOL, const char *))c;
 642
 643         if (!success) {
 644                 DEBUG(5, ("Could not trigger uid2sid\n"));
 645                 cont(private_data, False, NULL);
 646                 return;
 647         }
 648
 649         if (response->result != WINBINDD_OK) {
 650                 DEBUG(5, ("uid2sid returned an error\n"));
 651                 cont(private_data, False, NULL);
 652                 return;
 653         }
 654
 655         cont(private_data, True, response->data.sid.sid);
 656 }
 657
 658 void winbindd_uid2sid_async(TALLOC_CTX *mem_ctx, uid_t uid,
 659                             void (*cont)(void *private_data, BOOL success, const char *sid),
 660                             void *private_data)
 661 {
 662         struct winbindd_request request;
 663
 664         ZERO_STRUCT(request);
 665         request.cmd = WINBINDD_DUAL_UID2SID;
 666         request.data.uid = uid;
 667         do_async(mem_ctx, idmap_child(), &request, winbindd_uid2sid_recv,
 668                  (void *)cont, private_data);
 669 }
 670
 671 enum winbindd_result winbindd_dual_uid2sid(struct winbindd_domain *domain,
 672                                            struct winbindd_cli_state *state)
 673 {
 674         DOM_SID sid;
 675         NTSTATUS result;
 676
 677         DEBUG(3,("[%5lu]: uid to sid %lu\n",
 678                  (unsigned long)state->pid,
 679                  (unsigned long) state->request.data.uid));
 680
 681         /* Find sid for this uid and return it, possibly ask the slow remote idmap */
 682         result = idmap_uid_to_sid(&sid, state->request.data.uid);
 683
 684         if (NT_STATUS_IS_OK(result)) {
 685                 sid_to_string(state->response.data.sid.sid, &sid);
 686                 state->response.data.sid.type = SID_NAME_USER;
 687                 return WINBINDD_OK;
 688         }
 689
 690         return WINBINDD_ERROR;
 691 }
 692
 693 static void winbindd_gid2sid_recv(TALLOC_CTX *mem_ctx, BOOL success,
 694                                   struct winbindd_response *response,
 695                                   void *c, void *private_data)
 696 {
 697         void (*cont)(void *priv, BOOL succ, const char *sid) =
 698                 (void (*)(void *, BOOL, const char *))c;
 699
 700         if (!success) {
 701                 DEBUG(5, ("Could not trigger gid2sid\n"));
 702                 cont(private_data, False, NULL);
 703                 return;
 704         }
 705
 706         if (response->result != WINBINDD_OK) {
 707                 DEBUG(5, ("gid2sid returned an error\n"));
 708                 cont(private_data, False, NULL);
 709                 return;
 710         }
 711
 712         cont(private_data, True, response->data.sid.sid);
 713 }
 714
 715 void winbindd_gid2sid_async(TALLOC_CTX *mem_ctx, gid_t gid,
 716                             void (*cont)(void *private_data, BOOL success, const char *sid),
 717                             void *private_data)
 718 {
 719         struct winbindd_request request;
 720
 721         ZERO_STRUCT(request);
 722         request.cmd = WINBINDD_DUAL_GID2SID;
 723         request.data.gid = gid;
 724         do_async(mem_ctx, idmap_child(), &request, winbindd_gid2sid_recv,
 725                  (void *)cont, private_data);
 726 }
 727
 728 enum winbindd_result winbindd_dual_gid2sid(struct winbindd_domain *domain,
 729                                            struct winbindd_cli_state *state)
 730 {
 731         DOM_SID sid;
 732         NTSTATUS result;
 733
 734         DEBUG(3,("[%5lu]: gid %lu to sid\n",
 735                 (unsigned long)state->pid,
 736                 (unsigned long) state->request.data.gid));
 737
 738         /* Find sid for this gid and return it, possibly ask the slow remote idmap */
 739         result = idmap_gid_to_sid(&sid, state->request.data.gid);
 740
 741         if (NT_STATUS_IS_OK(result)) {
 742                 sid_to_string(state->response.data.sid.sid, &sid);
 743                 DEBUG(10, ("[%5lu]: retrieved sid: %s\n",
 744                            (unsigned long)state->pid,
 745                            state->response.data.sid.sid));
 746                 state->response.data.sid.type = SID_NAME_DOM_GRP;
 747                 return WINBINDD_OK;
 748         }
 749
 750         return WINBINDD_ERROR;
 751 }
 752
 753 static void winbindd_dump_id_maps_recv(TALLOC_CTX *mem_ctx, BOOL success,
 754                                struct winbindd_response *response,
 755                                void *c, void *private_data)
 756 {
 757         void (*cont)(void *priv, BOOL succ) =
 758                 (void (*)(void *, BOOL))c;
 759
 760         if (!success) {
 761                 DEBUG(5, ("Could not trigger a map dump\n"));
 762                 cont(private_data, False);
 763                 return;
 764         }
 765
 766         if (response->result != WINBINDD_OK) {
 767                 DEBUG(5, ("idmap dump maps returned an error\n"));
 768                 cont(private_data, False);
 769                 return;
 770         }
 771
 772         cont(private_data, True);
 773 }
 774
 775 void winbindd_dump_maps_async(TALLOC_CTX *mem_ctx, void *data, int size,
 776                          void (*cont)(void *private_data, BOOL success),
 777                          void *private_data)
 778 {
 779         struct winbindd_request request;
 780         ZERO_STRUCT(request);
 781         request.cmd = WINBINDD_DUAL_DUMP_MAPS;
 782         request.extra_data.data = (char *)data;
 783         request.extra_len = size;
 784         do_async(mem_ctx, idmap_child(), &request, winbindd_dump_id_maps_recv,
 785                  (void *)cont, private_data);
 786 }
 787
 788 enum winbindd_result winbindd_dual_dump_maps(struct winbindd_domain *domain,
 789                                            struct winbindd_cli_state *state)
 790 {
 791         DEBUG(3, ("[%5lu]: dual dump maps\n", (unsigned long)state->pid));
 792
 793         idmap_dump_maps((char *)state->request.extra_data.data);
 794
 795         return WINBINDD_OK;
 796 }
 797
 798 static const struct winbindd_child_dispatch_table idmap_dispatch_table[] = {
 799
 800         { WINBINDD_DUAL_SID2UID,         winbindd_dual_sid2uid,               "DUAL_SID2UID" },
 801         { WINBINDD_DUAL_SID2GID,         winbindd_dual_sid2gid,               "DUAL_SID2GID" },
 802 #if 0   /* DISABLED until we fix the interface in Samba 3.0.26 --jerry */
 803         { WINBINDD_DUAL_SIDS2XIDS,       winbindd_dual_sids2xids,             "DUAL_SIDS2XIDS" },
 804 #endif  /* end DISABLED */
 805         { WINBINDD_DUAL_UID2SID,         winbindd_dual_uid2sid,               "DUAL_UID2SID" },
 806         { WINBINDD_DUAL_GID2SID,         winbindd_dual_gid2sid,               "DUAL_GID2SID" },
 807         { WINBINDD_DUAL_UID2NAME,        winbindd_dual_uid2name,              "DUAL_UID2NAME" },
 808         { WINBINDD_DUAL_NAME2UID,        winbindd_dual_name2uid,              "DUAL_NAME2UID" },
 809         { WINBINDD_DUAL_GID2NAME,        winbindd_dual_gid2name,              "DUAL_GID2NAME" },
 810         { WINBINDD_DUAL_NAME2GID,        winbindd_dual_name2gid,              "DUAL_NAME2GID" },
 811         { WINBINDD_DUAL_SET_MAPPING,     winbindd_dual_set_mapping,           "DUAL_SET_MAPPING" },
 812         { WINBINDD_DUAL_SET_HWM,         winbindd_dual_set_hwm,               "DUAL_SET_HWMS" },
 813         { WINBINDD_DUAL_DUMP_MAPS,       winbindd_dual_dump_maps,             "DUAL_DUMP_MAPS" },
 814         { WINBINDD_ALLOCATE_UID,         winbindd_dual_allocate_uid,          "ALLOCATE_UID" },
 815         { WINBINDD_ALLOCATE_GID,         winbindd_dual_allocate_gid,          "ALLOCATE_GID" },
 816         /* End of list */
 817
 818         { WINBINDD_NUM_CMDS, NULL, "NONE" }
 819 };