source4/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 3 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, see <http://www.gnu.org/licenses/>.
  18 */
  19 /*
  20   a composite API for finding a DC and its name
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/composite/composite.h"
  25 #include "winbind/wb_async_helpers.h"
  26
  27 #include "lib/messaging/irpc.h"
  28 #include "librpc/gen_ndr/irpc.h"
  29 #include "auth/credentials/credentials.h"
  30 #include "libcli/security/security.h"
  31 #include "libcli/auth/libcli_auth.h"
  32 #include "librpc/gen_ndr/ndr_netlogon_c.h"
  33 #include "librpc/gen_ndr/ndr_lsa_c.h"
  34 #include "librpc/gen_ndr/ndr_samr_c.h"
  35
  36 #include "winbind/wb_helper.h"
  37
  38 struct get_schannel_creds_state {
  39         struct cli_credentials *wks_creds;
  40         struct dcerpc_pipe *p;
  41         struct netr_ServerReqChallenge r;
  42
  43         struct creds_CredentialState *creds_state;
  44         struct netr_Credential netr_cred;
  45         uint32_t negotiate_flags;
  46         struct netr_ServerAuthenticate2 a;
  47 };
  48
  49 static void get_schannel_creds_recv_anonbind(struct composite_context *creq);
  50 static void get_schannel_creds_recv_auth(struct rpc_request *req);
  51 static void get_schannel_creds_recv_chal(struct rpc_request *req);
  52 static void get_schannel_creds_recv_pipe(struct composite_context *ctx);
  53
  54 struct composite_context *wb_get_schannel_creds_send(TALLOC_CTX *mem_ctx,
  55                                                      struct cli_credentials *wks_creds,
  56                                                      struct smbcli_tree *tree,
  57                                                      struct event_context *ev)
  58 {
  59         struct composite_context *c, *creq;
  60         struct get_schannel_creds_state *state;
  61
  62         c = composite_create(mem_ctx, ev);
  63         if (c == NULL) goto failed;
  64
  65         state = talloc(c, struct get_schannel_creds_state);
  66         if (state == NULL) {
  67                 c->status = NT_STATUS_NO_MEMORY;
  68                 goto failed;
  69         }
  70
  71         c->private_data = state;
  72
  73         state->wks_creds = wks_creds;
  74
  75         state->p = dcerpc_pipe_init(state, ev);
  76         if (state->p == NULL) {
  77                 c->status = NT_STATUS_NO_MEMORY;
  78                 goto failed;
  79         }
  80
  81         creq = dcerpc_pipe_open_smb_send(state->p, tree, "\\netlogon");
  82         if (creq == NULL) {
  83                 c->status = NT_STATUS_NO_MEMORY;
  84                 goto failed;
  85         }
  86
  87         creq->async.fn = get_schannel_creds_recv_pipe;
  88         creq->async.private_data = c;
  89
  90         return c;
  91
  92  failed:
  93         composite_error(c, c->status);
  94         return c;
  95 }
  96
  97 static void get_schannel_creds_recv_pipe(struct composite_context *creq)
  98 {
  99         struct composite_context *c =
 100                 talloc_get_type(creq->async.private_data,
 101                                 struct composite_context);
 102         struct get_schannel_creds_state *state =
 103                 talloc_get_type(c->private_data,
 104                                 struct get_schannel_creds_state);
 105
 106         c->status = dcerpc_pipe_open_smb_recv(creq);
 107         if (!composite_is_ok(c)) return;
 108
 109         creq = dcerpc_bind_auth_none_send(state, state->p,
 110                                                                           &dcerpc_table_netlogon);
 111         composite_continue(c, creq, get_schannel_creds_recv_anonbind, c);
 112 }
 113
 114 static void get_schannel_creds_recv_anonbind(struct composite_context *creq)
 115 {
 116         struct composite_context *c =
 117                 talloc_get_type(creq->async.private_data,
 118                                 struct composite_context);
 119         struct get_schannel_creds_state *state =
 120                 talloc_get_type(c->private_data,
 121                                 struct get_schannel_creds_state);
 122         struct rpc_request *req;
 123
 124         c->status = dcerpc_bind_auth_none_recv(creq);
 125         if (!composite_is_ok(c)) return;
 126
 127         state->r.in.computer_name =
 128                 cli_credentials_get_workstation(state->wks_creds);
 129         state->r.in.server_name =
 130                 talloc_asprintf(state, "\\\\%s",
 131                                 dcerpc_server_name(state->p));
 132         if (composite_nomem(state->r.in.server_name, c)) return;
 133
 134         state->r.in.credentials = talloc(state, struct netr_Credential);
 135         if (composite_nomem(state->r.in.credentials, c)) return;
 136
 137         state->r.out.credentials = talloc(state, struct netr_Credential);
 138         if (composite_nomem(state->r.out.credentials, c)) return;
 139
 140         generate_random_buffer(state->r.in.credentials->data,
 141                                sizeof(state->r.in.credentials->data));
 142
 143         req = dcerpc_netr_ServerReqChallenge_send(state->p, state, &state->r);
 144         composite_continue_rpc(c, req, get_schannel_creds_recv_chal, c);
 145 }
 146
 147 static void get_schannel_creds_recv_chal(struct rpc_request *req)
 148 {
 149         struct composite_context *c =
 150                 talloc_get_type(req->async.private_data,
 151                                 struct composite_context);
 152         struct get_schannel_creds_state *state =
 153                 talloc_get_type(c->private_data,
 154                                 struct get_schannel_creds_state);
 155         const struct samr_Password *mach_pwd;
 156
 157         c->status = dcerpc_ndr_request_recv(req);
 158         if (!composite_is_ok(c)) return;
 159         c->status = state->r.out.result;
 160         if (!composite_is_ok(c)) return;
 161
 162         state->creds_state = talloc(state, struct creds_CredentialState);
 163         if (composite_nomem(state->creds_state, c)) return;
 164
 165         mach_pwd = cli_credentials_get_nt_hash(state->wks_creds, state);
 166         if (composite_nomem(mach_pwd, c)) return;
 167
 168         state->negotiate_flags = NETLOGON_NEG_AUTH2_FLAGS;
 169
 170         creds_client_init(state->creds_state, state->r.in.credentials,
 171                           state->r.out.credentials, mach_pwd,
 172                           &state->netr_cred, state->negotiate_flags);
 173
 174         state->a.in.server_name =
 175                 talloc_reference(state, state->r.in.server_name);
 176         state->a.in.account_name =
 177                 cli_credentials_get_username(state->wks_creds);
 178         state->a.in.secure_channel_type =
 179                 cli_credentials_get_secure_channel_type(state->wks_creds);
 180         state->a.in.computer_name =
 181                 cli_credentials_get_workstation(state->wks_creds);
 182         state->a.in.negotiate_flags = &state->negotiate_flags;
 183         state->a.out.negotiate_flags = &state->negotiate_flags;
 184         state->a.in.credentials = &state->netr_cred;
 185         state->a.out.credentials = &state->netr_cred;
 186
 187         req = dcerpc_netr_ServerAuthenticate2_send(state->p, state, &state->a);
 188         composite_continue_rpc(c, req, get_schannel_creds_recv_auth, c);
 189 }
 190
 191 static void get_schannel_creds_recv_auth(struct rpc_request *req)
 192 {
 193         struct composite_context *c =
 194                 talloc_get_type(req->async.private_data,
 195                                 struct composite_context);
 196         struct get_schannel_creds_state *state =
 197                 talloc_get_type(c->private_data,
 198                                 struct get_schannel_creds_state);
 199
 200         c->status = dcerpc_ndr_request_recv(req);
 201         if (!composite_is_ok(c)) return;
 202         c->status = state->a.out.result;
 203         if (!composite_is_ok(c)) return;
 204
 205         if (!creds_client_check(state->creds_state,
 206                                 state->a.out.credentials)) {
 207                 DEBUG(5, ("Server got us invalid creds\n"));
 208                 composite_error(c, NT_STATUS_UNSUCCESSFUL);
 209                 return;
 210         }
 211
 212         cli_credentials_set_netlogon_creds(state->wks_creds,
 213                                            state->creds_state);
 214
 215         composite_done(c);
 216 }
 217
 218 NTSTATUS wb_get_schannel_creds_recv(struct composite_context *c,
 219                                     TALLOC_CTX *mem_ctx,
 220                                     struct dcerpc_pipe **netlogon_pipe)
 221 {
 222         NTSTATUS status = composite_wait(c);
 223         if (NT_STATUS_IS_OK(status)) {
 224                 struct get_schannel_creds_state *state =
 225                         talloc_get_type(c->private_data,
 226                                         struct get_schannel_creds_state);
 227                 *netlogon_pipe = talloc_steal(mem_ctx, state->p);
 228         }
 229         talloc_free(c);
 230         return status;
 231 }
 232
 233 NTSTATUS wb_get_schannel_creds(TALLOC_CTX *mem_ctx,
 234                                struct cli_credentials *wks_creds,
 235                                struct smbcli_tree *tree,
 236                                struct event_context *event_ctx,
 237                                struct dcerpc_pipe **netlogon_pipe)
 238 {
 239         struct composite_context *c =
 240                 wb_get_schannel_creds_send(mem_ctx, wks_creds, tree,
 241                                            event_ctx);
 242         return wb_get_schannel_creds_recv(c, mem_ctx, netlogon_pipe);
 243 }
 244
 245 struct lsa_lookupsids_state {
 246         struct composite_context *ctx;
 247         int num_sids;
 248         struct lsa_LookupSids r;
 249         struct lsa_SidArray sids;
 250         struct lsa_TransNameArray names;
 251         uint32_t count;
 252         struct wb_sid_object **result;
 253 };
 254
 255 static void lsa_lookupsids_recv_names(struct rpc_request *req);
 256
 257 struct composite_context *wb_lsa_lookupsids_send(TALLOC_CTX *mem_ctx,
 258                                                  struct dcerpc_pipe *lsa_pipe,
 259                                                  struct policy_handle *handle,
 260                                                  int num_sids,
 261                                                  const struct dom_sid **sids)
 262 {
 263         struct composite_context *result;
 264         struct rpc_request *req;
 265         struct lsa_lookupsids_state *state;
 266         int i;
 267
 268         result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
 269         if (result == NULL) goto failed;
 270
 271         state = talloc(result, struct lsa_lookupsids_state);
 272         if (state == NULL) goto failed;
 273         result->private_data = state;
 274         state->ctx = result;
 275
 276         state->sids.num_sids = num_sids;
 277         state->sids.sids = talloc_array(state, struct lsa_SidPtr, num_sids);
 278         if (state->sids.sids == NULL) goto failed;
 279
 280         for (i=0; i<num_sids; i++) {
 281                 state->sids.sids[i].sid = dom_sid_dup(state->sids.sids,
 282                                                       sids[i]);
 283                 if (state->sids.sids[i].sid == NULL) goto failed;
 284         }
 285
 286         state->count = 0;
 287         state->num_sids = num_sids;
 288         state->names.count = 0;
 289         state->names.names = NULL;
 290
 291         state->r.in.handle = handle;
 292         state->r.in.sids = &state->sids;
 293         state->r.in.names = &state->names;
 294         state->r.in.level = 1;
 295         state->r.in.count = &state->count;
 296         state->r.out.names = &state->names;
 297         state->r.out.count = &state->count;
 298
 299         req = dcerpc_lsa_LookupSids_send(lsa_pipe, state, &state->r);
 300         if (req == NULL) goto failed;
 301
 302         req->async.callback = lsa_lookupsids_recv_names;
 303         req->async.private_data = state;
 304         return result;
 305
 306  failed:
 307         talloc_free(result);
 308         return NULL;
 309 }
 310
 311 static void lsa_lookupsids_recv_names(struct rpc_request *req)
 312 {
 313         struct lsa_lookupsids_state *state =
 314                 talloc_get_type(req->async.private_data,
 315                                 struct lsa_lookupsids_state);
 316         int i;
 317
 318         state->ctx->status = dcerpc_ndr_request_recv(req);
 319         if (!composite_is_ok(state->ctx)) return;
 320         state->ctx->status = state->r.out.result;
 321         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 322             !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 323                 composite_error(state->ctx, state->ctx->status);
 324                 return;
 325         }
 326
 327         state->result = talloc_array(state, struct wb_sid_object *,
 328                                      state->num_sids);
 329         if (composite_nomem(state->result, state->ctx)) return;
 330
 331         for (i=0; i<state->num_sids; i++) {
 332                 struct lsa_TranslatedName *name =
 333                         &state->r.out.names->names[i];
 334                 struct lsa_DomainInfo *dom;
 335
 336                 state->result[i] = talloc_zero(state->result,
 337                                                struct wb_sid_object);
 338                 if (composite_nomem(state->result[i], state->ctx)) return;
 339
 340                 state->result[i]->type = name->sid_type;
 341                 if (state->result[i]->type == SID_NAME_UNKNOWN) {
 342                         continue;
 343                 }
 344
 345                 if (name->sid_index >= state->r.out.domains->count) {
 346                         composite_error(state->ctx,
 347                                         NT_STATUS_INVALID_PARAMETER);
 348                         return;
 349                 }
 350
 351                 dom = &state->r.out.domains->domains[name->sid_index];
 352                 state->result[i]->domain = talloc_reference(state->result[i],
 353                                                             dom->name.string);
 354                 if ((name->sid_type == SID_NAME_DOMAIN) ||
 355                     (name->name.string == NULL)) {
 356                         state->result[i]->name =
 357                                 talloc_strdup(state->result[i], "");
 358                 } else {
 359                         state->result[i]->name =
 360                                 talloc_steal(state->result[i],
 361                                              name->name.string);
 362                 }
 363
 364                 if (composite_nomem(state->result[i]->name, state->ctx)) {
 365                         return;
 366                 }
 367         }
 368
 369         composite_done(state->ctx);
 370 }
 371
 372 NTSTATUS wb_lsa_lookupsids_recv(struct composite_context *c,
 373                                 TALLOC_CTX *mem_ctx,
 374                                 struct wb_sid_object ***names)
 375 {
 376         NTSTATUS status = composite_wait(c);
 377         if (NT_STATUS_IS_OK(status)) {
 378                 struct lsa_lookupsids_state *state =
 379                         talloc_get_type(c->private_data,
 380                                         struct lsa_lookupsids_state);
 381                 *names = talloc_steal(mem_ctx, state->result);
 382         }
 383         talloc_free(c);
 384         return status;
 385 }
 386
 387 NTSTATUS wb_lsa_lookupsids(TALLOC_CTX *mem_ctx,
 388                            struct dcerpc_pipe *lsa_pipe,
 389                            struct policy_handle *handle,
 390                            int num_sids, const struct dom_sid **sids,
 391                            struct wb_sid_object ***names)
 392 {
 393         struct composite_context *c =
 394                 wb_lsa_lookupsids_send(mem_ctx, lsa_pipe, handle,
 395                                        num_sids, sids);
 396         return wb_lsa_lookupnames_recv(c, mem_ctx, names);
 397 }
 398
 399
 400
 401 struct lsa_lookupnames_state {
 402         struct composite_context *ctx;
 403         uint32_t num_names;
 404         struct lsa_LookupNames r;
 405         struct lsa_TransSidArray sids;
 406         uint32_t count;
 407         struct wb_sid_object **result;
 408 };
 409
 410 static void lsa_lookupnames_recv_sids(struct rpc_request *req);
 411
 412 struct composite_context *wb_lsa_lookupnames_send(TALLOC_CTX *mem_ctx,
 413                                                   struct dcerpc_pipe *lsa_pipe,
 414                                                   struct policy_handle *handle,
 415                                                   int num_names,
 416                                                   const char **names)
 417 {
 418         struct composite_context *result;
 419         struct rpc_request *req;
 420         struct lsa_lookupnames_state *state;
 421
 422         struct lsa_String *lsa_names;
 423         int i;
 424
 425         result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
 426         if (result == NULL) goto failed;
 427
 428         state = talloc(result, struct lsa_lookupnames_state);
 429         if (state == NULL) goto failed;
 430         result->private_data = state;
 431         state->ctx = result;
 432
 433         state->sids.count = 0;
 434         state->sids.sids = NULL;
 435         state->num_names = num_names;
 436         state->count = 0;
 437
 438         lsa_names = talloc_array(state, struct lsa_String, num_names);
 439         if (lsa_names == NULL) goto failed;
 440
 441         for (i=0; i<num_names; i++) {
 442                 lsa_names[i].string = names[i];
 443         }
 444
 445         state->r.in.handle = handle;
 446         state->r.in.num_names = num_names;
 447         state->r.in.names = lsa_names;
 448         state->r.in.sids = &state->sids;
 449         state->r.in.level = 1;
 450         state->r.in.count = &state->count;
 451         state->r.out.count = &state->count;
 452         state->r.out.sids = &state->sids;
 453
 454         req = dcerpc_lsa_LookupNames_send(lsa_pipe, state, &state->r);
 455         if (req == NULL) goto failed;
 456
 457         req->async.callback = lsa_lookupnames_recv_sids;
 458         req->async.private_data = state;
 459         return result;
 460
 461  failed:
 462         talloc_free(result);
 463         return NULL;
 464 }
 465
 466 static void lsa_lookupnames_recv_sids(struct rpc_request *req)
 467 {
 468         struct lsa_lookupnames_state *state =
 469                 talloc_get_type(req->async.private_data,
 470                                 struct lsa_lookupnames_state);
 471         int i;
 472
 473         state->ctx->status = dcerpc_ndr_request_recv(req);
 474         if (!composite_is_ok(state->ctx)) return;
 475         state->ctx->status = state->r.out.result;
 476         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 477             !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 478                 composite_error(state->ctx, state->ctx->status);
 479                 return;
 480         }
 481
 482         state->result = talloc_array(state, struct wb_sid_object *,
 483                                      state->num_names);
 484         if (composite_nomem(state->result, state->ctx)) return;
 485
 486         for (i=0; i<state->num_names; i++) {
 487                 struct lsa_TranslatedSid *sid = &state->r.out.sids->sids[i];
 488                 struct lsa_DomainInfo *dom;
 489
 490                 state->result[i] = talloc_zero(state->result,
 491                                                struct wb_sid_object);
 492                 if (composite_nomem(state->result[i], state->ctx)) return;
 493
 494                 state->result[i]->type = sid->sid_type;
 495                 if (state->result[i]->type == SID_NAME_UNKNOWN) {
 496                         continue;
 497                 }
 498
 499                 if (sid->sid_index >= state->r.out.domains->count) {
 500                         composite_error(state->ctx,
 501                                         NT_STATUS_INVALID_PARAMETER);
 502                         return;
 503                 }
 504
 505                 dom = &state->r.out.domains->domains[sid->sid_index];
 506
 507                 state->result[i]->sid = dom_sid_add_rid(state->result[i],
 508                                                         dom->sid, sid->rid);
 509         }
 510
 511         composite_done(state->ctx);
 512 }
 513
 514 NTSTATUS wb_lsa_lookupnames_recv(struct composite_context *c,
 515                                  TALLOC_CTX *mem_ctx,
 516                                  struct wb_sid_object ***sids)
 517 {
 518         NTSTATUS status = composite_wait(c);
 519         if (NT_STATUS_IS_OK(status)) {
 520                 struct lsa_lookupnames_state *state =
 521                         talloc_get_type(c->private_data,
 522                                         struct lsa_lookupnames_state);
 523                 *sids = talloc_steal(mem_ctx, state->result);
 524         }
 525         talloc_free(c);
 526         return status;
 527 }
 528
 529 NTSTATUS wb_lsa_lookupnames(TALLOC_CTX *mem_ctx,
 530                             struct dcerpc_pipe *lsa_pipe,
 531                             struct policy_handle *handle,
 532                             int num_names, const char **names,
 533                             struct wb_sid_object ***sids)
 534 {
 535         struct composite_context *c =
 536                 wb_lsa_lookupnames_send(mem_ctx, lsa_pipe, handle,
 537                                         num_names, names);
 538         return wb_lsa_lookupnames_recv(c, mem_ctx, sids);
 539 }
 540
 541 #if 0
 542
 543 struct cmd_checkmachacc_state {
 544         struct composite_context *ctx;
 545         struct wbsrv_call *call;
 546         struct wbsrv_domain *domain;
 547 };
 548
 549 static void cmd_checkmachacc_recv_init(struct composite_context *ctx);
 550
 551  struct composite_context *wb_cmd_checkmachacc_send(struct wbsrv_call *call)
 552 {
 553         struct composite_context *result, *ctx;
 554         struct cmd_checkmachacc_state *state;
 555         struct wbsrv_service *service = call->wbconn->listen_socket->service;
 556
 557         result = composite_create(mem_ctx, call->event_ctx;
 558         if (result == NULL) goto failed;
 559
 560         state = talloc(result, struct cmd_checkmachacc_state);
 561         if (state == NULL) goto failed;
 562         state->ctx = result;
 563         result->private_data = state;
 564         state->call = call;
 565
 566         state->domain = service->domains;
 567
 568         ctx = wb_init_domain_send(service, state->domain);
 569         if (ctx == NULL) goto failed;
 570         ctx->async.fn = cmd_checkmachacc_recv_init;
 571         ctx->async.private_data = state;
 572
 573         return result;
 574
 575  failed:
 576         talloc_free(result);
 577         return NULL;
 578 }
 579
 580 static void cmd_checkmachacc_recv_init(struct composite_context *ctx)
 581 {
 582         struct cmd_checkmachacc_state *state =
 583                 talloc_get_type(ctx->async.private_data,
 584                                 struct cmd_checkmachacc_state);
 585
 586         state->ctx->status = wb_init_domain_recv(ctx);
 587         if (!composite_is_ok(state->ctx)) return;
 588
 589         composite_done(state->ctx);
 590 }
 591
 592  NTSTATUS wb_cmd_checkmachacc_recv(struct composite_context *c)
 593 {
 594         NTSTATUS status = composite_wait(c);
 595         talloc_free(c);
 596         return status;
 597 }
 598
 599  NTSTATUS wb_cmd_checkmachacc(struct wbsrv_call *call)
 600 {
 601         struct composite_context *c = wb_cmd_checkmachacc_send(call);
 602         return wb_cmd_checkmachacc_recv(c);
 603 }
 604 #endif
 605
 606 struct samr_getuserdomgroups_state {
 607         struct composite_context *ctx;
 608         struct dcerpc_pipe *samr_pipe;
 609
 610         int num_rids;
 611         uint32_t *rids;
 612
 613         struct policy_handle *user_handle;
 614         struct samr_OpenUser o;
 615         struct samr_GetGroupsForUser g;
 616         struct samr_Close c;
 617 };
 618
 619 static void samr_usergroups_recv_open(struct rpc_request *req);
 620 static void samr_usergroups_recv_groups(struct rpc_request *req);
 621 static void samr_usergroups_recv_close(struct rpc_request *req);
 622
 623 struct composite_context *wb_samr_userdomgroups_send(TALLOC_CTX *mem_ctx,
 624                                                      struct dcerpc_pipe *samr_pipe,
 625                                                      struct policy_handle *domain_handle,
 626                                                      uint32_t rid)
 627 {
 628         struct composite_context *result;
 629         struct rpc_request *req;
 630         struct samr_getuserdomgroups_state *state;
 631
 632         result = composite_create(mem_ctx, samr_pipe->conn->event_ctx);
 633         if (result == NULL) goto failed;
 634
 635         state = talloc(result, struct samr_getuserdomgroups_state);
 636         if (state == NULL) goto failed;
 637         result->private_data = state;
 638         state->ctx = result;
 639
 640         state->samr_pipe = samr_pipe;
 641
 642         state->user_handle = talloc(state, struct policy_handle);
 643         if (state->user_handle == NULL) goto failed;
 644
 645         state->o.in.domain_handle = domain_handle;
 646         state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 647         state->o.in.rid = rid;
 648         state->o.out.user_handle = state->user_handle;
 649
 650         req = dcerpc_samr_OpenUser_send(state->samr_pipe, state, &state->o);
 651         if (req == NULL) goto failed;
 652
 653         req->async.callback = samr_usergroups_recv_open;
 654         req->async.private_data = state;
 655         return result;
 656
 657  failed:
 658         talloc_free(result);
 659         return NULL;
 660 }
 661
 662 static void samr_usergroups_recv_open(struct rpc_request *req)
 663 {
 664         struct samr_getuserdomgroups_state *state =
 665                 talloc_get_type(req->async.private_data,
 666                                 struct samr_getuserdomgroups_state);
 667
 668         state->ctx->status = dcerpc_ndr_request_recv(req);
 669         if (!composite_is_ok(state->ctx)) return;
 670         state->ctx->status = state->o.out.result;
 671         if (!composite_is_ok(state->ctx)) return;
 672
 673         state->g.in.user_handle = state->user_handle;
 674
 675         req = dcerpc_samr_GetGroupsForUser_send(state->samr_pipe, state,
 676                                                 &state->g);
 677         composite_continue_rpc(state->ctx, req, samr_usergroups_recv_groups,
 678                                state);
 679 }
 680
 681 static void samr_usergroups_recv_groups(struct rpc_request *req)
 682 {
 683         struct samr_getuserdomgroups_state *state =
 684                 talloc_get_type(req->async.private_data,
 685                                 struct samr_getuserdomgroups_state);
 686
 687         state->ctx->status = dcerpc_ndr_request_recv(req);
 688         if (!composite_is_ok(state->ctx)) return;
 689         state->ctx->status = state->g.out.result;
 690         if (!composite_is_ok(state->ctx)) return;
 691
 692         state->c.in.handle = state->user_handle;
 693         state->c.out.handle = state->user_handle;
 694
 695         req = dcerpc_samr_Close_send(state->samr_pipe, state, &state->c);
 696         composite_continue_rpc(state->ctx, req, samr_usergroups_recv_close,
 697                                state);
 698 }
 699
 700 static void samr_usergroups_recv_close(struct rpc_request *req)
 701 {
 702         struct samr_getuserdomgroups_state *state =
 703                 talloc_get_type(req->async.private_data,
 704                                 struct samr_getuserdomgroups_state);
 705
 706         state->ctx->status = dcerpc_ndr_request_recv(req);
 707         if (!composite_is_ok(state->ctx)) return;
 708         state->ctx->status = state->c.out.result;
 709         if (!composite_is_ok(state->ctx)) return;
 710
 711         composite_done(state->ctx);
 712 }
 713
 714 NTSTATUS wb_samr_userdomgroups_recv(struct composite_context *ctx,
 715                                     TALLOC_CTX *mem_ctx,
 716                                     int *num_rids, uint32_t **rids)
 717 {
 718         struct samr_getuserdomgroups_state *state =
 719                 talloc_get_type(ctx->private_data,
 720                                 struct samr_getuserdomgroups_state);
 721
 722         int i;
 723         NTSTATUS status = composite_wait(ctx);
 724         if (!NT_STATUS_IS_OK(status)) goto done;
 725
 726         *num_rids = state->g.out.rids->count;
 727         *rids = talloc_array(mem_ctx, uint32_t, *num_rids);
 728         if (*rids == NULL) {
 729                 status = NT_STATUS_NO_MEMORY;
 730                 goto done;
 731         }
 732
 733         for (i=0; i<*num_rids; i++) {
 734                 (*rids)[i] = state->g.out.rids->rids[i].rid;
 735         }
 736
 737  done:
 738         talloc_free(ctx);
 739         return status;
 740 }