source/winbind/wb_async_helpers.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Volker Lendecke 2005
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20 /*
  21   a composite API for finding a DC and its name
  22 */
  23
  24 #include "includes.h"
  25 #include "libcli/composite/composite.h"
  26 #include "winbind/wb_async_helpers.h"
  27
  28 #include "lib/messaging/irpc.h"
  29 #include "librpc/gen_ndr/irpc.h"
  30 #include "libcli/auth/credentials.h"
  31 #include "libcli/security/security.h"
  32 #include "libcli/auth/libcli_auth.h"
  33 #include "librpc/gen_ndr/ndr_netlogon_c.h"
  34 #include "librpc/gen_ndr/ndr_lsa_c.h"
  35 #include "librpc/gen_ndr/ndr_samr_c.h"
  36
  37 #include "winbind/wb_helper.h"
  38
  39 struct get_schannel_creds_state {
  40         struct cli_credentials *wks_creds;
  41         struct dcerpc_pipe *p;
  42         struct netr_ServerReqChallenge r;
  43
  44         struct creds_CredentialState *creds_state;
  45         struct netr_Credential netr_cred;
  46         uint32_t negotiate_flags;
  47         struct netr_ServerAuthenticate2 a;
  48 };
  49
  50 static void get_schannel_creds_recv_anonbind(struct composite_context *creq);
  51 static void get_schannel_creds_recv_auth(struct rpc_request *req);
  52 static void get_schannel_creds_recv_chal(struct rpc_request *req);
  53 static void get_schannel_creds_recv_pipe(struct composite_context *ctx);
  54
  55 struct composite_context *wb_get_schannel_creds_send(TALLOC_CTX *mem_ctx,
  56                                                      struct cli_credentials *wks_creds,
  57                                                      struct smbcli_tree *tree,
  58                                                      struct event_context *ev)
  59 {
  60         struct composite_context *c, *creq;
  61         struct get_schannel_creds_state *state;
  62
  63         c = talloc_zero(mem_ctx, struct composite_context);
  64         if (c == NULL) return NULL;
  65
  66         state = talloc(c, struct get_schannel_creds_state);
  67         if (state == NULL) {
  68                 c->status = NT_STATUS_NO_MEMORY;
  69                 goto failed;
  70         }
  71
  72         c->state = COMPOSITE_STATE_IN_PROGRESS;
  73         c->private_data = state;
  74         c->event_ctx = ev;
  75
  76         state->wks_creds = wks_creds;
  77
  78         state->p = dcerpc_pipe_init(state, ev);
  79         if (state->p == NULL) {
  80                 c->status = NT_STATUS_NO_MEMORY;
  81                 goto failed;
  82         }
  83
  84         creq = dcerpc_pipe_open_smb_send(state->p->conn, tree, "\\netlogon");
  85         if (creq == NULL) {
  86                 c->status = NT_STATUS_NO_MEMORY;
  87                 goto failed;
  88         }
  89
  90         creq->async.fn = get_schannel_creds_recv_pipe;
  91         creq->async.private_data = c;
  92
  93         return c;
  94
  95  failed:
  96         composite_error(c, c->status);
  97         return c;
  98 }
  99
 100 static void get_schannel_creds_recv_pipe(struct composite_context *creq)
 101 {
 102         struct composite_context *c =
 103                 talloc_get_type(creq->async.private_data,
 104                                 struct composite_context);
 105         struct get_schannel_creds_state *state =
 106                 talloc_get_type(c->private_data,
 107                                 struct get_schannel_creds_state);
 108
 109         c->status = dcerpc_pipe_open_smb_recv(creq);
 110         if (!composite_is_ok(c)) return;
 111
 112         creq = dcerpc_bind_auth_none_send(state, state->p,
 113                                                                           &dcerpc_table_netlogon);
 114         composite_continue(c, creq, get_schannel_creds_recv_anonbind, c);
 115 }
 116
 117 static void get_schannel_creds_recv_anonbind(struct composite_context *creq)
 118 {
 119         struct composite_context *c =
 120                 talloc_get_type(creq->async.private_data,
 121                                 struct composite_context);
 122         struct get_schannel_creds_state *state =
 123                 talloc_get_type(c->private_data,
 124                                 struct get_schannel_creds_state);
 125         struct rpc_request *req;
 126
 127         c->status = dcerpc_bind_auth_none_recv(creq);
 128         if (!composite_is_ok(c)) return;
 129
 130         state->r.in.computer_name =
 131                 cli_credentials_get_workstation(state->wks_creds);
 132         state->r.in.server_name =
 133                 talloc_asprintf(state, "\\\\%s",
 134                                 dcerpc_server_name(state->p));
 135         if (composite_nomem(state->r.in.server_name, c)) return;
 136
 137         state->r.in.credentials = talloc(state, struct netr_Credential);
 138         if (composite_nomem(state->r.in.credentials, c)) return;
 139
 140         state->r.out.credentials = talloc(state, struct netr_Credential);
 141         if (composite_nomem(state->r.out.credentials, c)) return;
 142
 143         generate_random_buffer(state->r.in.credentials->data,
 144                                sizeof(state->r.in.credentials->data));
 145
 146         req = dcerpc_netr_ServerReqChallenge_send(state->p, state, &state->r);
 147         composite_continue_rpc(c, req, get_schannel_creds_recv_chal, c);
 148 }
 149
 150 static void get_schannel_creds_recv_chal(struct rpc_request *req)
 151 {
 152         struct composite_context *c =
 153                 talloc_get_type(req->async.private,
 154                                 struct composite_context);
 155         struct get_schannel_creds_state *state =
 156                 talloc_get_type(c->private_data,
 157                                 struct get_schannel_creds_state);
 158         const struct samr_Password *mach_pwd;
 159
 160         c->status = dcerpc_ndr_request_recv(req);
 161         if (!composite_is_ok(c)) return;
 162         c->status = state->r.out.result;
 163         if (!composite_is_ok(c)) return;
 164
 165         state->creds_state = talloc(state, struct creds_CredentialState);
 166         if (composite_nomem(state->creds_state, c)) return;
 167
 168         mach_pwd = cli_credentials_get_nt_hash(state->wks_creds, state);
 169         if (composite_nomem(mach_pwd, c)) return;
 170
 171         state->negotiate_flags = NETLOGON_NEG_AUTH2_FLAGS;
 172
 173         creds_client_init(state->creds_state, state->r.in.credentials,
 174                           state->r.out.credentials, mach_pwd,
 175                           &state->netr_cred, state->negotiate_flags);
 176
 177         state->a.in.server_name =
 178                 talloc_reference(state, state->r.in.server_name);
 179         state->a.in.account_name =
 180                 cli_credentials_get_username(state->wks_creds);
 181         state->a.in.secure_channel_type =
 182                 cli_credentials_get_secure_channel_type(state->wks_creds);
 183         state->a.in.computer_name =
 184                 cli_credentials_get_workstation(state->wks_creds);
 185         state->a.in.negotiate_flags = &state->negotiate_flags;
 186         state->a.out.negotiate_flags = &state->negotiate_flags;
 187         state->a.in.credentials = &state->netr_cred;
 188         state->a.out.credentials = &state->netr_cred;
 189
 190         req = dcerpc_netr_ServerAuthenticate2_send(state->p, state, &state->a);
 191         composite_continue_rpc(c, req, get_schannel_creds_recv_auth, c);
 192 }
 193
 194 static void get_schannel_creds_recv_auth(struct rpc_request *req)
 195 {
 196         struct composite_context *c =
 197                 talloc_get_type(req->async.private,
 198                                 struct composite_context);
 199         struct get_schannel_creds_state *state =
 200                 talloc_get_type(c->private_data,
 201                                 struct get_schannel_creds_state);
 202
 203         c->status = dcerpc_ndr_request_recv(req);
 204         if (!composite_is_ok(c)) return;
 205         c->status = state->a.out.result;
 206         if (!composite_is_ok(c)) return;
 207
 208         if (!creds_client_check(state->creds_state,
 209                                 state->a.out.credentials)) {
 210                 DEBUG(5, ("Server got us invalid creds\n"));
 211                 composite_error(c, NT_STATUS_UNSUCCESSFUL);
 212                 return;
 213         }
 214
 215         cli_credentials_set_netlogon_creds(state->wks_creds,
 216                                            state->creds_state);
 217
 218         composite_done(c);
 219 }
 220
 221 NTSTATUS wb_get_schannel_creds_recv(struct composite_context *c,
 222                                     TALLOC_CTX *mem_ctx,
 223                                     struct dcerpc_pipe **netlogon_pipe)
 224 {
 225         NTSTATUS status = composite_wait(c);
 226         if (NT_STATUS_IS_OK(status)) {
 227                 struct get_schannel_creds_state *state =
 228                         talloc_get_type(c->private_data,
 229                                         struct get_schannel_creds_state);
 230                 *netlogon_pipe = talloc_steal(mem_ctx, state->p);
 231         }
 232         talloc_free(c);
 233         return status;
 234 }
 235
 236 NTSTATUS wb_get_schannel_creds(TALLOC_CTX *mem_ctx,
 237                                struct cli_credentials *wks_creds,
 238                                struct smbcli_tree *tree,
 239                                struct event_context *event_ctx,
 240                                struct dcerpc_pipe **netlogon_pipe)
 241 {
 242         struct composite_context *c =
 243                 wb_get_schannel_creds_send(mem_ctx, wks_creds, tree,
 244                                            event_ctx);
 245         return wb_get_schannel_creds_recv(c, mem_ctx, netlogon_pipe);
 246 }
 247
 248 struct lsa_lookupsids_state {
 249         struct composite_context *ctx;
 250         int num_sids;
 251         struct lsa_LookupSids r;
 252         struct lsa_SidArray sids;
 253         struct lsa_TransNameArray names;
 254         uint32_t count;
 255         struct wb_sid_object **result;
 256 };
 257
 258 static void lsa_lookupsids_recv_names(struct rpc_request *req);
 259
 260 struct composite_context *wb_lsa_lookupsids_send(TALLOC_CTX *mem_ctx,
 261                                                  struct dcerpc_pipe *lsa_pipe,
 262                                                  struct policy_handle *handle,
 263                                                  int num_sids,
 264                                                  const struct dom_sid **sids)
 265 {
 266         struct composite_context *result;
 267         struct rpc_request *req;
 268         struct lsa_lookupsids_state *state;
 269         int i;
 270
 271         result = talloc(mem_ctx, struct composite_context);
 272         if (result == NULL) goto failed;
 273         result->state = COMPOSITE_STATE_IN_PROGRESS;
 274         result->async.fn = NULL;
 275         result->event_ctx = lsa_pipe->conn->event_ctx;
 276
 277         state = talloc(result, struct lsa_lookupsids_state);
 278         if (state == NULL) goto failed;
 279         result->private_data = state;
 280         state->ctx = result;
 281
 282         state->sids.num_sids = num_sids;
 283         state->sids.sids = talloc_array(state, struct lsa_SidPtr, num_sids);
 284         if (state->sids.sids == NULL) goto failed;
 285
 286         for (i=0; i<num_sids; i++) {
 287                 state->sids.sids[i].sid = dom_sid_dup(state->sids.sids,
 288                                                       sids[i]);
 289                 if (state->sids.sids[i].sid == NULL) goto failed;
 290         }
 291
 292         state->count = 0;
 293         state->num_sids = num_sids;
 294         state->names.count = 0;
 295         state->names.names = NULL;
 296
 297         state->r.in.handle = handle;
 298         state->r.in.sids = &state->sids;
 299         state->r.in.names = &state->names;
 300         state->r.in.level = 1;
 301         state->r.in.count = &state->count;
 302         state->r.out.names = &state->names;
 303         state->r.out.count = &state->count;
 304
 305         req = dcerpc_lsa_LookupSids_send(lsa_pipe, state, &state->r);
 306         if (req == NULL) goto failed;
 307
 308         req->async.callback = lsa_lookupsids_recv_names;
 309         req->async.private = state;
 310         return result;
 311
 312  failed:
 313         talloc_free(result);
 314         return NULL;
 315 }
 316
 317 static void lsa_lookupsids_recv_names(struct rpc_request *req)
 318 {
 319         struct lsa_lookupsids_state *state =
 320                 talloc_get_type(req->async.private,
 321                                 struct lsa_lookupsids_state);
 322         int i;
 323
 324         state->ctx->status = dcerpc_ndr_request_recv(req);
 325         if (!composite_is_ok(state->ctx)) return;
 326         state->ctx->status = state->r.out.result;
 327         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 328             !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 329                 composite_error(state->ctx, state->ctx->status);
 330                 return;
 331         }
 332
 333         state->result = talloc_array(state, struct wb_sid_object *,
 334                                      state->num_sids);
 335         if (composite_nomem(state->result, state->ctx)) return;
 336
 337         for (i=0; i<state->num_sids; i++) {
 338                 struct lsa_TranslatedName *name =
 339                         &state->r.out.names->names[i];
 340                 struct lsa_TrustInformation *dom;
 341
 342                 state->result[i] = talloc_zero(state->result,
 343                                                struct wb_sid_object);
 344                 if (composite_nomem(state->result[i], state->ctx)) return;
 345
 346                 state->result[i]->type = name->sid_type;
 347                 if (state->result[i]->type == SID_NAME_UNKNOWN) {
 348                         continue;
 349                 }
 350
 351                 if (name->sid_index >= state->r.out.domains->count) {
 352                         composite_error(state->ctx,
 353                                         NT_STATUS_INVALID_PARAMETER);
 354                         return;
 355                 }
 356
 357                 dom = &state->r.out.domains->domains[name->sid_index];
 358                 state->result[i]->domain = talloc_reference(state->result[i],
 359                                                             dom->name.string);
 360                 if ((name->sid_type == SID_NAME_DOMAIN) ||
 361                     (name->name.string == NULL)) {
 362                         state->result[i]->name =
 363                                 talloc_strdup(state->result[i], "");
 364                 } else {
 365                         state->result[i]->name =
 366                                 talloc_steal(state->result[i],
 367                                              name->name.string);
 368                 }
 369
 370                 if (composite_nomem(state->result[i]->name, state->ctx)) {
 371                         return;
 372                 }
 373         }
 374
 375         composite_done(state->ctx);
 376 }
 377
 378 NTSTATUS wb_lsa_lookupsids_recv(struct composite_context *c,
 379                                 TALLOC_CTX *mem_ctx,
 380                                 struct wb_sid_object ***names)
 381 {
 382         NTSTATUS status = composite_wait(c);
 383         if (NT_STATUS_IS_OK(status)) {
 384                 struct lsa_lookupsids_state *state =
 385                         talloc_get_type(c->private_data,
 386                                         struct lsa_lookupsids_state);
 387                 *names = talloc_steal(mem_ctx, state->result);
 388         }
 389         talloc_free(c);
 390         return status;
 391 }
 392
 393 NTSTATUS wb_lsa_lookupsids(TALLOC_CTX *mem_ctx,
 394                            struct dcerpc_pipe *lsa_pipe,
 395                            struct policy_handle *handle,
 396                            int num_sids, const struct dom_sid **sids,
 397                            struct wb_sid_object ***names)
 398 {
 399         struct composite_context *c =
 400                 wb_lsa_lookupsids_send(mem_ctx, lsa_pipe, handle,
 401                                        num_sids, sids);
 402         return wb_lsa_lookupnames_recv(c, mem_ctx, names);
 403 }
 404
 405
 406
 407 struct lsa_lookupnames_state {
 408         struct composite_context *ctx;
 409         uint32_t num_names;
 410         struct lsa_LookupNames r;
 411         struct lsa_TransSidArray sids;
 412         uint32_t count;
 413         struct wb_sid_object **result;
 414 };
 415
 416 static void lsa_lookupnames_recv_sids(struct rpc_request *req);
 417
 418 struct composite_context *wb_lsa_lookupnames_send(TALLOC_CTX *mem_ctx,
 419                                                   struct dcerpc_pipe *lsa_pipe,
 420                                                   struct policy_handle *handle,
 421                                                   int num_names,
 422                                                   const char **names)
 423 {
 424         struct composite_context *result;
 425         struct rpc_request *req;
 426         struct lsa_lookupnames_state *state;
 427
 428         struct lsa_String *lsa_names;
 429         int i;
 430
 431         result = talloc(mem_ctx, struct composite_context);
 432         if (result == NULL) goto failed;
 433         result->state = COMPOSITE_STATE_IN_PROGRESS;
 434         result->async.fn = NULL;
 435         result->event_ctx = lsa_pipe->conn->event_ctx;
 436
 437         state = talloc(result, struct lsa_lookupnames_state);
 438         if (state == NULL) goto failed;
 439         result->private_data = state;
 440         state->ctx = result;
 441
 442         state->sids.count = 0;
 443         state->sids.sids = NULL;
 444         state->num_names = num_names;
 445         state->count = 0;
 446
 447         lsa_names = talloc_array(state, struct lsa_String, num_names);
 448         if (lsa_names == NULL) goto failed;
 449
 450         for (i=0; i<num_names; i++) {
 451                 lsa_names[i].string = names[i];
 452         }
 453
 454         state->r.in.handle = handle;
 455         state->r.in.num_names = num_names;
 456         state->r.in.names = lsa_names;
 457         state->r.in.sids = &state->sids;
 458         state->r.in.level = 1;
 459         state->r.in.count = &state->count;
 460         state->r.out.count = &state->count;
 461         state->r.out.sids = &state->sids;
 462
 463         req = dcerpc_lsa_LookupNames_send(lsa_pipe, state, &state->r);
 464         if (req == NULL) goto failed;
 465
 466         req->async.callback = lsa_lookupnames_recv_sids;
 467         req->async.private = state;
 468         return result;
 469
 470  failed:
 471         talloc_free(result);
 472         return NULL;
 473 }
 474
 475 static void lsa_lookupnames_recv_sids(struct rpc_request *req)
 476 {
 477         struct lsa_lookupnames_state *state =
 478                 talloc_get_type(req->async.private,
 479                                 struct lsa_lookupnames_state);
 480         int i;
 481
 482         state->ctx->status = dcerpc_ndr_request_recv(req);
 483         if (!composite_is_ok(state->ctx)) return;
 484         state->ctx->status = state->r.out.result;
 485         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 486             !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 487                 composite_error(state->ctx, state->ctx->status);
 488                 return;
 489         }
 490
 491         state->result = talloc_array(state, struct wb_sid_object *,
 492                                      state->num_names);
 493         if (composite_nomem(state->result, state->ctx)) return;
 494
 495         for (i=0; i<state->num_names; i++) {
 496                 struct lsa_TranslatedSid *sid = &state->r.out.sids->sids[i];
 497                 struct lsa_TrustInformation *dom;
 498
 499                 state->result[i] = talloc_zero(state->result,
 500                                                struct wb_sid_object);
 501                 if (composite_nomem(state->result[i], state->ctx)) return;
 502
 503                 state->result[i]->type = sid->sid_type;
 504                 if (state->result[i]->type == SID_NAME_UNKNOWN) {
 505                         continue;
 506                 }
 507
 508                 if (sid->sid_index >= state->r.out.domains->count) {
 509                         composite_error(state->ctx,
 510                                         NT_STATUS_INVALID_PARAMETER);
 511                         return;
 512                 }
 513
 514                 dom = &state->r.out.domains->domains[sid->sid_index];
 515
 516                 state->result[i]->sid = dom_sid_add_rid(state->result[i],
 517                                                         dom->sid, sid->rid);
 518         }
 519
 520         composite_done(state->ctx);
 521 }
 522
 523 NTSTATUS wb_lsa_lookupnames_recv(struct composite_context *c,
 524                                  TALLOC_CTX *mem_ctx,
 525                                  struct wb_sid_object ***sids)
 526 {
 527         NTSTATUS status = composite_wait(c);
 528         if (NT_STATUS_IS_OK(status)) {
 529                 struct lsa_lookupnames_state *state =
 530                         talloc_get_type(c->private_data,
 531                                         struct lsa_lookupnames_state);
 532                 *sids = talloc_steal(mem_ctx, state->result);
 533         }
 534         talloc_free(c);
 535         return status;
 536 }
 537
 538 NTSTATUS wb_lsa_lookupnames(TALLOC_CTX *mem_ctx,
 539                             struct dcerpc_pipe *lsa_pipe,
 540                             struct policy_handle *handle,
 541                             int num_names, const char **names,
 542                             struct wb_sid_object ***sids)
 543 {
 544         struct composite_context *c =
 545                 wb_lsa_lookupnames_send(mem_ctx, lsa_pipe, handle,
 546                                         num_names, names);
 547         return wb_lsa_lookupnames_recv(c, mem_ctx, sids);
 548 }
 549
 550 #if 0
 551
 552 struct cmd_checkmachacc_state {
 553         struct composite_context *ctx;
 554         struct wbsrv_call *call;
 555         struct wbsrv_domain *domain;
 556 };
 557
 558 static void cmd_checkmachacc_recv_init(struct composite_context *ctx);
 559
 560  struct composite_context *wb_cmd_checkmachacc_send(struct wbsrv_call *call)
 561 {
 562         struct composite_context *result, *ctx;
 563         struct cmd_checkmachacc_state *state;
 564         struct wbsrv_service *service = call->wbconn->listen_socket->service;
 565
 566         result = talloc(call, struct composite_context);
 567         if (result == NULL) goto failed;
 568         result->state = COMPOSITE_STATE_IN_PROGRESS;
 569         result->async.fn = NULL;
 570         result->event_ctx = call->event_ctx;
 571
 572         state = talloc(result, struct cmd_checkmachacc_state);
 573         if (state == NULL) goto failed;
 574         state->ctx = result;
 575         result->private_data = state;
 576         state->call = call;
 577
 578         state->domain = service->domains;
 579
 580         ctx = wb_init_domain_send(service, state->domain);
 581         if (ctx == NULL) goto failed;
 582         ctx->async.fn = cmd_checkmachacc_recv_init;
 583         ctx->async.private_data = state;
 584
 585         return result;
 586
 587  failed:
 588         talloc_free(result);
 589         return NULL;
 590 }
 591
 592 static void cmd_checkmachacc_recv_init(struct composite_context *ctx)
 593 {
 594         struct cmd_checkmachacc_state *state =
 595                 talloc_get_type(ctx->async.private_data,
 596                                 struct cmd_checkmachacc_state);
 597
 598         state->ctx->status = wb_init_domain_recv(ctx);
 599         if (!composite_is_ok(state->ctx)) return;
 600
 601         composite_done(state->ctx);
 602 }
 603
 604  NTSTATUS wb_cmd_checkmachacc_recv(struct composite_context *c)
 605 {
 606         NTSTATUS status = composite_wait(c);
 607         talloc_free(c);
 608         return status;
 609 }
 610
 611  NTSTATUS wb_cmd_checkmachacc(struct wbsrv_call *call)
 612 {
 613         struct composite_context *c = wb_cmd_checkmachacc_send(call);
 614         return wb_cmd_checkmachacc_recv(c);
 615 }
 616 #endif
 617
 618 struct samr_getuserdomgroups_state {
 619         struct composite_context *ctx;
 620         struct dcerpc_pipe *samr_pipe;
 621
 622         int num_rids;
 623         uint32_t *rids;
 624
 625         struct policy_handle *user_handle;
 626         struct samr_OpenUser o;
 627         struct samr_GetGroupsForUser g;
 628         struct samr_Close c;
 629 };
 630
 631 static void samr_usergroups_recv_open(struct rpc_request *req);
 632 static void samr_usergroups_recv_groups(struct rpc_request *req);
 633 static void samr_usergroups_recv_close(struct rpc_request *req);
 634
 635 struct composite_context *wb_samr_userdomgroups_send(TALLOC_CTX *mem_ctx,
 636                                                      struct dcerpc_pipe *samr_pipe,
 637                                                      struct policy_handle *domain_handle,
 638                                                      uint32_t rid)
 639 {
 640         struct composite_context *result;
 641         struct rpc_request *req;
 642         struct samr_getuserdomgroups_state *state;
 643
 644         result = talloc(mem_ctx, struct composite_context);
 645         if (result == NULL) goto failed;
 646         result->state = COMPOSITE_STATE_IN_PROGRESS;
 647         result->async.fn = NULL;
 648         result->event_ctx = samr_pipe->conn->event_ctx;
 649
 650         state = talloc(result, struct samr_getuserdomgroups_state);
 651         if (state == NULL) goto failed;
 652         result->private_data = state;
 653         state->ctx = result;
 654
 655         state->samr_pipe = samr_pipe;
 656
 657         state->user_handle = talloc(state, struct policy_handle);
 658         if (state->user_handle == NULL) goto failed;
 659
 660         state->o.in.domain_handle = domain_handle;
 661         state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 662         state->o.in.rid = rid;
 663         state->o.out.user_handle = state->user_handle;
 664
 665         req = dcerpc_samr_OpenUser_send(state->samr_pipe, state, &state->o);
 666         if (req == NULL) goto failed;
 667
 668         req->async.callback = samr_usergroups_recv_open;
 669         req->async.private = state;
 670         return result;
 671
 672  failed:
 673         talloc_free(result);
 674         return NULL;
 675 }
 676
 677 static void samr_usergroups_recv_open(struct rpc_request *req)
 678 {
 679         struct samr_getuserdomgroups_state *state =
 680                 talloc_get_type(req->async.private,
 681                                 struct samr_getuserdomgroups_state);
 682
 683         state->ctx->status = dcerpc_ndr_request_recv(req);
 684         if (!composite_is_ok(state->ctx)) return;
 685         state->ctx->status = state->o.out.result;
 686         if (!composite_is_ok(state->ctx)) return;
 687
 688         state->g.in.user_handle = state->user_handle;
 689
 690         req = dcerpc_samr_GetGroupsForUser_send(state->samr_pipe, state,
 691                                                 &state->g);
 692         composite_continue_rpc(state->ctx, req, samr_usergroups_recv_groups,
 693                                state);
 694 }
 695
 696 static void samr_usergroups_recv_groups(struct rpc_request *req)
 697 {
 698         struct samr_getuserdomgroups_state *state =
 699                 talloc_get_type(req->async.private,
 700                                 struct samr_getuserdomgroups_state);
 701
 702         state->ctx->status = dcerpc_ndr_request_recv(req);
 703         if (!composite_is_ok(state->ctx)) return;
 704         state->ctx->status = state->g.out.result;
 705         if (!composite_is_ok(state->ctx)) return;
 706
 707         state->c.in.handle = state->user_handle;
 708         state->c.out.handle = state->user_handle;
 709
 710         req = dcerpc_samr_Close_send(state->samr_pipe, state, &state->c);
 711         composite_continue_rpc(state->ctx, req, samr_usergroups_recv_close,
 712                                state);
 713 }
 714
 715 static void samr_usergroups_recv_close(struct rpc_request *req)
 716 {
 717         struct samr_getuserdomgroups_state *state =
 718                 talloc_get_type(req->async.private,
 719                                 struct samr_getuserdomgroups_state);
 720
 721         state->ctx->status = dcerpc_ndr_request_recv(req);
 722         if (!composite_is_ok(state->ctx)) return;
 723         state->ctx->status = state->c.out.result;
 724         if (!composite_is_ok(state->ctx)) return;
 725
 726         composite_done(state->ctx);
 727 }
 728
 729 NTSTATUS wb_samr_userdomgroups_recv(struct composite_context *ctx,
 730                                     TALLOC_CTX *mem_ctx,
 731                                     int *num_rids, uint32_t **rids)
 732 {
 733         struct samr_getuserdomgroups_state *state =
 734                 talloc_get_type(ctx->private_data,
 735                                 struct samr_getuserdomgroups_state);
 736
 737         int i;
 738         NTSTATUS status = composite_wait(ctx);
 739         if (!NT_STATUS_IS_OK(status)) goto done;
 740
 741         *num_rids = state->g.out.rids->count;
 742         *rids = talloc_array(mem_ctx, uint32_t, *num_rids);
 743         if (*rids == NULL) {
 744                 status = NT_STATUS_NO_MEMORY;
 745                 goto done;
 746         }
 747
 748         for (i=0; i<*num_rids; i++) {
 749                 (*rids)[i] = state->g.out.rids->rids[i].rid;
 750         }
 751
 752  done:
 753         talloc_free(ctx);
 754         return status;
 755 }