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 "libcli/smb_composite/smb_composite.h"
  27 #include "winbind/wb_async_helpers.h"
  28 #include "winbind/wb_server.h"
  29 #include "smbd/service_stream.h"
  30
  31 #include "librpc/gen_ndr/nbt.h"
  32 #include "librpc/gen_ndr/samr.h"
  33 #include "lib/messaging/irpc.h"
  34 #include "librpc/gen_ndr/irpc.h"
  35 #include "librpc/gen_ndr/ndr_irpc.h"
  36 #include "libcli/raw/libcliraw.h"
  37 #include "librpc/gen_ndr/ndr_netlogon.h"
  38 #include "librpc/gen_ndr/ndr_lsa.h"
  39 #include "libcli/auth/credentials.h"
  40
  41 struct finddcs_state {
  42         struct composite_context *ctx;
  43         struct messaging_context *msg_ctx;
  44
  45         const char *domain_name;
  46         const struct dom_sid *domain_sid;
  47
  48         struct nbtd_getdcname r;
  49
  50         int num_dcs;
  51         struct nbt_dc_name *dcs;
  52 };
  53
  54 static void finddcs_resolve(struct composite_context *ctx);
  55 static void finddcs_getdc(struct irpc_request *ireq);
  56
  57 struct composite_context *wb_finddcs_send(const char *domain_name,
  58                                           const struct dom_sid *domain_sid,
  59                                           struct event_context *event_ctx,
  60                                           struct messaging_context *msg_ctx)
  61 {
  62         struct composite_context *result, *ctx;
  63         struct finddcs_state *state;
  64         struct nbt_name name;
  65
  66         result = talloc_zero(NULL, struct composite_context);
  67         if (result == NULL) goto failed;
  68         result->state = COMPOSITE_STATE_IN_PROGRESS;
  69         result->event_ctx = event_ctx;
  70
  71         state = talloc(result, struct finddcs_state);
  72         if (state == NULL) goto failed;
  73         state->ctx = result;
  74         result->private_data = state;
  75
  76         state->domain_name = talloc_strdup(state, domain_name);
  77         if (state->domain_name == NULL) goto failed;
  78         state->domain_sid = dom_sid_dup(state, domain_sid);
  79         if (state->domain_sid == NULL) goto failed;
  80         state->msg_ctx = msg_ctx;
  81
  82         make_nbt_name(&name, state->domain_name, 0x1c);
  83         ctx = resolve_name_send(&name, result->event_ctx,
  84                                 lp_name_resolve_order());
  85
  86         if (ctx == NULL) goto failed;
  87         ctx->async.fn = finddcs_resolve;
  88         ctx->async.private_data = state;
  89
  90         return result;
  91
  92 failed:
  93         talloc_free(result);
  94         return NULL;
  95 }
  96
  97 static void finddcs_resolve(struct composite_context *ctx)
  98 {
  99         struct finddcs_state *state =
 100                 talloc_get_type(ctx->async.private_data, struct finddcs_state);
 101         struct irpc_request *ireq;
 102         uint32_t *nbt_servers;
 103         const char *address;
 104
 105         state->ctx->status = resolve_name_recv(ctx, state, &address);
 106         if (!composite_is_ok(state->ctx)) return;
 107
 108         state->num_dcs = 1;
 109         state->dcs = talloc_array(state, struct nbt_dc_name, state->num_dcs);
 110         if (composite_nomem(state->dcs, state->ctx)) return;
 111
 112         state->dcs[0].address = talloc_steal(state->dcs, address);
 113
 114         nbt_servers = irpc_servers_byname(state->msg_ctx, "nbt_server");
 115         if ((nbt_servers == NULL) || (nbt_servers[0] == 0)) {
 116                 composite_error(state->ctx, NT_STATUS_NO_LOGON_SERVERS);
 117                 return;
 118         }
 119
 120         state->r.in.domainname = state->domain_name;
 121         state->r.in.ip_address = state->dcs[0].address;
 122         state->r.in.my_computername = lp_netbios_name();
 123         state->r.in.my_accountname = talloc_asprintf(state, "%s$",
 124                                                      lp_netbios_name());
 125         if (composite_nomem(state->r.in.my_accountname, state->ctx)) return;
 126         state->r.in.account_control = ACB_WSTRUST;
 127         state->r.in.domain_sid = dom_sid_dup(state, state->domain_sid);
 128         if (composite_nomem(state->r.in.domain_sid, state->ctx)) return;
 129
 130         ireq = irpc_call_send(state->msg_ctx, nbt_servers[0],
 131                               &dcerpc_table_irpc, DCERPC_NBTD_GETDCNAME,
 132                               &state->r, state);
 133         composite_continue_irpc(state->ctx, ireq, finddcs_getdc, state);
 134 }
 135
 136 static void finddcs_getdc(struct irpc_request *ireq)
 137 {
 138         struct finddcs_state *state =
 139                 talloc_get_type(ireq->async.private, struct finddcs_state);
 140
 141         state->ctx->status = irpc_call_recv(ireq);
 142         if (!composite_is_ok(state->ctx)) return;
 143
 144         state->dcs[0].name = talloc_steal(state->dcs, state->r.out.dcname);
 145         composite_done(state->ctx);
 146 }
 147
 148 NTSTATUS wb_finddcs_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
 149                          int *num_dcs, struct nbt_dc_name **dcs)
 150 {
 151         NTSTATUS status =composite_wait(c);
 152         if (NT_STATUS_IS_OK(status)) {
 153                 struct finddcs_state *state =
 154                         talloc_get_type(c->private_data, struct finddcs_state);
 155                 *num_dcs = state->num_dcs;
 156                 *dcs = talloc_steal(mem_ctx, state->dcs);
 157         }
 158         talloc_free(c);
 159         return status;
 160 }
 161
 162 NTSTATUS wb_finddcs(const char *domain_name, const struct dom_sid *domain_sid,
 163                     struct event_context *event_ctx,
 164                     struct messaging_context *msg_ctx,
 165                     TALLOC_CTX *mem_ctx,
 166                     int *num_dcs, struct nbt_dc_name **dcs)
 167 {
 168         struct composite_context *c = wb_finddcs_send(domain_name, domain_sid,
 169                                                       event_ctx, msg_ctx);
 170         return wb_finddcs_recv(c, mem_ctx, num_dcs, dcs);
 171 }
 172
 173 struct get_schannel_creds_state {
 174         struct composite_context *ctx;
 175         struct cli_credentials *wks_creds;
 176         struct dcerpc_pipe *p;
 177         struct netr_ServerReqChallenge r;
 178
 179         struct creds_CredentialState *creds_state;
 180         struct netr_Credential netr_cred;
 181         uint32_t negotiate_flags;
 182         struct netr_ServerAuthenticate2 a;
 183 };
 184
 185 static void get_schannel_creds_recv_auth(struct rpc_request *req);
 186 static void get_schannel_creds_recv_chal(struct rpc_request *req);
 187 static void get_schannel_creds_recv_pipe(struct composite_context *ctx);
 188
 189 struct composite_context *wb_get_schannel_creds_send(struct cli_credentials *wks_creds,
 190                                                      struct smbcli_tree *tree,
 191                                                      struct event_context *ev)
 192 {
 193         struct composite_context *result, *ctx;
 194         struct get_schannel_creds_state *state;
 195
 196         result = talloc_zero(NULL, struct composite_context);
 197         if (result == NULL) goto failed;
 198         result->state = COMPOSITE_STATE_IN_PROGRESS;
 199         result->event_ctx = ev;
 200
 201         state = talloc(result, struct get_schannel_creds_state);
 202         if (state == NULL) goto failed;
 203         result->private_data = state;
 204         state->ctx = result;
 205
 206         state->wks_creds = wks_creds;
 207
 208         state->p = dcerpc_pipe_init(state, ev);
 209         if (state->p == NULL) goto failed;
 210
 211         ctx = dcerpc_pipe_open_smb_send(state->p->conn, tree, "\\netlogon");
 212         if (ctx == NULL) goto failed;
 213
 214         ctx->async.fn = get_schannel_creds_recv_pipe;
 215         ctx->async.private_data = state;
 216         return result;
 217
 218  failed:
 219         talloc_free(result);
 220         return NULL;
 221 }
 222
 223 static void get_schannel_creds_recv_pipe(struct composite_context *ctx)
 224 {
 225         struct get_schannel_creds_state *state =
 226                 talloc_get_type(ctx->async.private_data,
 227                                 struct get_schannel_creds_state);
 228         struct rpc_request *req;
 229
 230         state->ctx->status = dcerpc_pipe_open_smb_recv(ctx);
 231         if (!composite_is_ok(state->ctx)) return;
 232
 233         state->ctx->status = dcerpc_bind_auth_none(state->p,
 234                                                    DCERPC_NETLOGON_UUID,
 235                                                    DCERPC_NETLOGON_VERSION);
 236         if (!composite_is_ok(state->ctx)) return;
 237
 238         state->r.in.computer_name =
 239                 cli_credentials_get_workstation(state->wks_creds);
 240         state->r.in.server_name =
 241                 talloc_asprintf(state, "\\\\%s",
 242                                 dcerpc_server_name(state->p));
 243         if (composite_nomem(state->r.in.server_name, state->ctx)) return;
 244
 245         state->r.in.credentials = talloc(state, struct netr_Credential);
 246         if (composite_nomem(state->r.in.credentials, state->ctx)) return;
 247
 248         state->r.out.credentials = talloc(state, struct netr_Credential);
 249         if (composite_nomem(state->r.out.credentials, state->ctx)) return;
 250
 251         generate_random_buffer(state->r.in.credentials->data,
 252                                sizeof(state->r.in.credentials->data));
 253
 254         req = dcerpc_netr_ServerReqChallenge_send(state->p, state, &state->r);
 255         composite_continue_rpc(state->ctx, req,
 256                                get_schannel_creds_recv_chal, state);
 257 }
 258
 259 static void get_schannel_creds_recv_chal(struct rpc_request *req)
 260 {
 261         struct get_schannel_creds_state *state =
 262                 talloc_get_type(req->async.private,
 263                                 struct get_schannel_creds_state);
 264         const struct samr_Password *mach_pwd;
 265
 266         state->ctx->status = dcerpc_ndr_request_recv(req);
 267         if (!composite_is_ok(state->ctx)) return;
 268         state->ctx->status = state->r.out.result;
 269         if (!composite_is_ok(state->ctx)) return;
 270
 271         state->creds_state = talloc(state, struct creds_CredentialState);
 272         if (composite_nomem(state->creds_state, state->ctx)) return;
 273
 274         mach_pwd = cli_credentials_get_nt_hash(state->wks_creds, state);
 275         if (composite_nomem(mach_pwd, state->ctx)) return;
 276
 277         state->negotiate_flags = NETLOGON_NEG_AUTH2_FLAGS;
 278
 279         creds_client_init(state->creds_state, state->r.in.credentials,
 280                           state->r.out.credentials, mach_pwd,
 281                           &state->netr_cred, state->negotiate_flags);
 282
 283         state->a.in.server_name =
 284                 talloc_reference(state, state->r.in.server_name);
 285         state->a.in.account_name =
 286                 cli_credentials_get_username(state->wks_creds);
 287         state->a.in.secure_channel_type =
 288                 cli_credentials_get_secure_channel_type(state->wks_creds);
 289         state->a.in.computer_name =
 290                 cli_credentials_get_workstation(state->wks_creds);
 291         state->a.in.negotiate_flags = &state->negotiate_flags;
 292         state->a.out.negotiate_flags = &state->negotiate_flags;
 293         state->a.in.credentials = &state->netr_cred;
 294         state->a.out.credentials = &state->netr_cred;
 295
 296         req = dcerpc_netr_ServerAuthenticate2_send(state->p, state, &state->a);
 297         composite_continue_rpc(state->ctx, req,
 298                                get_schannel_creds_recv_auth, state);
 299 }
 300
 301 static void get_schannel_creds_recv_auth(struct rpc_request *req)
 302 {
 303         struct get_schannel_creds_state *state =
 304                 talloc_get_type(req->async.private,
 305                                 struct get_schannel_creds_state);
 306
 307         state->ctx->status = dcerpc_ndr_request_recv(req);
 308         if (!NT_STATUS_IS_OK(state->ctx->status)) goto done;
 309         state->ctx->status = state->a.out.result;
 310         if (!NT_STATUS_IS_OK(state->ctx->status)) goto done;
 311
 312         if (!creds_client_check(state->creds_state,
 313                                 state->a.out.credentials)) {
 314                 DEBUG(5, ("Server got us invalid creds\n"));
 315                 state->ctx->status = NT_STATUS_UNSUCCESSFUL;
 316                 goto done;
 317         }
 318
 319         cli_credentials_set_netlogon_creds(state->wks_creds,
 320                                            state->creds_state);
 321
 322         state->ctx->state = COMPOSITE_STATE_DONE;
 323
 324  done:
 325         if (!NT_STATUS_IS_OK(state->ctx->status)) {
 326                 state->ctx->state = COMPOSITE_STATE_ERROR;
 327         }
 328         if ((state->ctx->state >= COMPOSITE_STATE_DONE) &&
 329             (state->ctx->async.fn != NULL)) {
 330                 state->ctx->async.fn(state->ctx);
 331         }
 332 }
 333
 334 NTSTATUS wb_get_schannel_creds_recv(struct composite_context *c,
 335                                     TALLOC_CTX *mem_ctx,
 336                                     struct dcerpc_pipe **netlogon_pipe)
 337 {
 338         NTSTATUS status = composite_wait(c);
 339         if (NT_STATUS_IS_OK(status)) {
 340                 struct get_schannel_creds_state *state =
 341                         talloc_get_type(c->private_data,
 342                                         struct get_schannel_creds_state);
 343                 *netlogon_pipe = talloc_steal(mem_ctx, state->p);
 344         }
 345         talloc_free(c);
 346         return status;
 347 }
 348
 349 NTSTATUS wb_get_schannel_creds(struct cli_credentials *wks_creds,
 350                                struct smbcli_tree *tree,
 351                                struct event_context *event_ctx,
 352                                TALLOC_CTX *mem_ctx,
 353                                struct dcerpc_pipe **netlogon_pipe)
 354 {
 355         struct composite_context *c =
 356                 wb_get_schannel_creds_send(wks_creds, tree, event_ctx);
 357         return wb_get_schannel_creds_recv(c, mem_ctx, netlogon_pipe);
 358 }
 359
 360 struct lsa_lookupnames_state {
 361         struct composite_context *ctx;
 362         uint32_t num_names;
 363         struct lsa_LookupNames r;
 364         struct lsa_TransSidArray sids;
 365         uint32_t count;
 366         struct wb_sid_object **result;
 367 };
 368
 369 static void lsa_lookupnames_recv_sids(struct rpc_request *req);
 370
 371 struct composite_context *wb_lsa_lookupnames_send(struct dcerpc_pipe *lsa_pipe,
 372                                                   struct policy_handle *handle,
 373                                                   int num_names,
 374                                                   const char **names)
 375 {
 376         struct composite_context *result;
 377         struct rpc_request *req;
 378         struct lsa_lookupnames_state *state;
 379
 380         struct lsa_String *lsa_names;
 381         int i;
 382
 383         result = talloc_zero(NULL, struct composite_context);
 384         if (result == NULL) goto failed;
 385         result->state = COMPOSITE_STATE_IN_PROGRESS;
 386         result->event_ctx = lsa_pipe->conn->event_ctx;
 387
 388         state = talloc(result, struct lsa_lookupnames_state);
 389         if (state == NULL) goto failed;
 390         result->private_data = state;
 391         state->ctx = result;
 392
 393         state->sids.count = 0;
 394         state->sids.sids = NULL;
 395         state->num_names = num_names;
 396         state->count = 0;
 397
 398         lsa_names = talloc_array(state, struct lsa_String, num_names);
 399         if (lsa_names == NULL) goto failed;
 400
 401         for (i=0; i<num_names; i++) {
 402                 lsa_names[i].string = names[i];
 403         }
 404
 405         state->r.in.handle = handle;
 406         state->r.in.num_names = num_names;
 407         state->r.in.names = lsa_names;
 408         state->r.in.sids = &state->sids;
 409         state->r.in.level = 1;
 410         state->r.in.count = &state->count;
 411         state->r.out.count = &state->count;
 412         state->r.out.sids = &state->sids;
 413
 414         req = dcerpc_lsa_LookupNames_send(lsa_pipe, state, &state->r);
 415         if (req == NULL) goto failed;
 416
 417         req->async.callback = lsa_lookupnames_recv_sids;
 418         req->async.private = state;
 419         return result;
 420
 421  failed:
 422         talloc_free(result);
 423         return NULL;
 424 }
 425
 426 static void lsa_lookupnames_recv_sids(struct rpc_request *req)
 427 {
 428         struct lsa_lookupnames_state *state =
 429                 talloc_get_type(req->async.private,
 430                                 struct lsa_lookupnames_state);
 431         int i;
 432
 433         state->ctx->status = dcerpc_ndr_request_recv(req);
 434         if (!composite_is_ok(state->ctx)) return;
 435         state->ctx->status = state->r.out.result;
 436         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 437             !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 438                 composite_error(state->ctx, state->ctx->status);
 439                 return;
 440         }
 441
 442         state->result = talloc_array(state, struct wb_sid_object *,
 443                                      state->num_names);
 444         if (composite_nomem(state->result, state->ctx)) return;
 445
 446         for (i=0; i<state->num_names; i++) {
 447                 struct lsa_TranslatedSid *sid = &state->r.out.sids->sids[i];
 448                 struct lsa_TrustInformation *dom;
 449
 450                 state->result[i] = talloc_zero(state->result,
 451                                                struct wb_sid_object);
 452                 if (composite_nomem(state->result[i], state->ctx)) return;
 453
 454                 state->result[i]->type = sid->sid_type;
 455                 if (state->result[i]->type == SID_NAME_UNKNOWN) {
 456                         continue;
 457                 }
 458
 459                 if (sid->sid_index >= state->r.out.domains->count) {
 460                         composite_error(state->ctx,
 461                                         NT_STATUS_INVALID_PARAMETER);
 462                         return;
 463                 }
 464
 465                 dom = &state->r.out.domains->domains[sid->sid_index];
 466
 467                 state->result[i]->sid = dom_sid_add_rid(state->result[i],
 468                                                         dom->sid, sid->rid);
 469         }
 470
 471         composite_done(state->ctx);
 472 }
 473
 474 NTSTATUS wb_lsa_lookupnames_recv(struct composite_context *c,
 475                                  TALLOC_CTX *mem_ctx,
 476                                  struct wb_sid_object ***sids)
 477 {
 478         NTSTATUS status = composite_wait(c);
 479         if (NT_STATUS_IS_OK(status)) {
 480                 struct lsa_lookupnames_state *state =
 481                         talloc_get_type(c->private_data,
 482                                         struct lsa_lookupnames_state);
 483                 *sids = talloc_steal(mem_ctx, state->result);
 484         }
 485         talloc_free(c);
 486         return status;
 487 }
 488
 489 NTSTATUS wb_lsa_lookupnames(struct dcerpc_pipe *lsa_pipe,
 490                             struct policy_handle *handle,
 491                             int num_names, const char **names,
 492                             TALLOC_CTX *mem_ctx,
 493                             struct wb_sid_object ***sids)
 494 {
 495         struct composite_context *c =
 496                 wb_lsa_lookupnames_send(lsa_pipe, handle, num_names, names);
 497         return wb_lsa_lookupnames_recv(c, mem_ctx, sids);
 498 }
 499
 500 struct cmd_lookupname_state {
 501         struct composite_context *ctx;
 502         struct wbsrv_call *call;
 503         struct wbsrv_domain *domain;
 504         const char *name;
 505         struct wb_sid_object *result;
 506 };
 507
 508 static void cmd_lookupname_recv_init(struct composite_context *ctx);
 509 static void cmd_lookupname_recv_sid(struct composite_context *ctx);
 510
 511 struct composite_context *wb_cmd_lookupname_send(struct wbsrv_call *call,
 512                                                  const char *name)
 513 {
 514         struct composite_context *result, *ctx;
 515         struct cmd_lookupname_state *state;
 516         struct wbsrv_service *service = call->wbconn->listen_socket->service;
 517
 518         result = talloc_zero(call, struct composite_context);
 519         if (result == NULL) goto failed;
 520         result->state = COMPOSITE_STATE_IN_PROGRESS;
 521         result->event_ctx = call->event_ctx;
 522
 523         state = talloc(result, struct cmd_lookupname_state);
 524         if (state == NULL) goto failed;
 525         state->ctx = result;
 526         result->private_data = state;
 527
 528         state->call = call;
 529         state->name = talloc_strdup(state, name);
 530
 531         state->domain = service->domains;
 532
 533         if (state->domain->initialized) {
 534                 ctx = wb_lsa_lookupnames_send(state->domain->lsa_pipe,
 535                                               state->domain->lsa_policy,
 536                                               1, &state->name);
 537                 if (ctx == NULL) goto failed;
 538                 ctx->async.fn = cmd_lookupname_recv_sid;
 539                 ctx->async.private_data = state;
 540                 return result;
 541         }
 542
 543         ctx = wb_init_domain_send(state->domain,
 544                                   result->event_ctx,
 545                                   call->wbconn->conn->msg_ctx);
 546         if (ctx == NULL) goto failed;
 547         ctx->async.fn = cmd_lookupname_recv_init;
 548         ctx->async.private_data = state;
 549         return result;
 550
 551  failed:
 552         talloc_free(result);
 553         return NULL;
 554 }
 555
 556 static void cmd_lookupname_recv_init(struct composite_context *ctx)
 557 {
 558         struct cmd_lookupname_state *state =
 559                 talloc_get_type(ctx->async.private_data,
 560                                 struct cmd_lookupname_state);
 561
 562         state->ctx->status = wb_init_domain_recv(ctx);
 563         if (!composite_is_ok(state->ctx)) return;
 564
 565         ctx = wb_lsa_lookupnames_send(state->domain->lsa_pipe,
 566                                       state->domain->lsa_policy,
 567                                       1, &state->name);
 568         composite_continue(state->ctx, ctx, cmd_lookupname_recv_sid, state);
 569 }
 570
 571 static void cmd_lookupname_recv_sid(struct composite_context *ctx)
 572 {
 573         struct cmd_lookupname_state *state =
 574                 talloc_get_type(ctx->async.private_data,
 575                                 struct cmd_lookupname_state);
 576         struct wb_sid_object **sids;
 577
 578         state->ctx->status = wb_lsa_lookupnames_recv(ctx, state, &sids);
 579         if (!composite_is_ok(state->ctx)) return;
 580         state->result = sids[0];
 581         composite_done(state->ctx);
 582 }
 583
 584 NTSTATUS wb_cmd_lookupname_recv(struct composite_context *c,
 585                                 TALLOC_CTX *mem_ctx,
 586                                 struct wb_sid_object **sid)
 587 {
 588         NTSTATUS status = composite_wait(c);
 589         if (NT_STATUS_IS_OK(status)) {
 590                 struct cmd_lookupname_state *state =
 591                         talloc_get_type(c->private_data,
 592                                         struct cmd_lookupname_state);
 593                 *sid = talloc_steal(mem_ctx, state->result);
 594         }
 595         talloc_free(c);
 596         return status;
 597 }
 598
 599 NTSTATUS wb_cmd_lookupname(struct wbsrv_call *call, const char *name,
 600                            TALLOC_CTX *mem_ctx, struct wb_sid_object **sid)
 601 {
 602         struct composite_context *c =
 603                 wb_cmd_lookupname_send(call, name);
 604         return wb_cmd_lookupname_recv(c, mem_ctx, sid);
 605 }
 606
 607 struct cmd_checkmachacc_state {
 608         struct composite_context *ctx;
 609         struct wbsrv_call *call;
 610         struct wbsrv_domain *domain;
 611 };
 612
 613 static void cmd_checkmachacc_recv_init(struct composite_context *ctx);
 614
 615 struct composite_context *wb_cmd_checkmachacc_send(struct wbsrv_call *call)
 616 {
 617         struct composite_context *result, *ctx;
 618         struct cmd_checkmachacc_state *state;
 619         struct wbsrv_service *service = call->wbconn->listen_socket->service;
 620
 621         result = talloc(call, struct composite_context);
 622         if (result == NULL) goto failed;
 623         result->state = COMPOSITE_STATE_IN_PROGRESS;
 624         result->event_ctx = call->event_ctx;
 625
 626         state = talloc(result, struct cmd_checkmachacc_state);
 627         if (state == NULL) goto failed;
 628         state->ctx = result;
 629         result->private_data = state;
 630         state->call = call;
 631
 632         state->domain = service->domains;
 633
 634         ctx = wb_init_domain_send(state->domain, result->event_ctx,
 635                                   call->wbconn->conn->msg_ctx);
 636         if (ctx == NULL) goto failed;
 637         ctx->async.fn = cmd_checkmachacc_recv_init;
 638         ctx->async.private_data = state;
 639
 640         return result;
 641
 642  failed:
 643         talloc_free(result);
 644         return NULL;
 645 }
 646
 647 static void cmd_checkmachacc_recv_init(struct composite_context *ctx)
 648 {
 649         struct cmd_checkmachacc_state *state =
 650                 talloc_get_type(ctx->async.private_data,
 651                                 struct cmd_checkmachacc_state);
 652
 653         state->ctx->status = wb_init_domain_recv(ctx);
 654         if (!composite_is_ok(state->ctx)) return;
 655
 656         composite_done(state->ctx);
 657 }
 658
 659 NTSTATUS wb_cmd_checkmachacc_recv(struct composite_context *c)
 660 {
 661         NTSTATUS status = composite_wait(c);
 662         talloc_free(c);
 663         return status;
 664 }
 665
 666 NTSTATUS wb_cmd_checkmachacc(struct wbsrv_call *call)
 667 {
 668         struct composite_context *c = wb_cmd_checkmachacc_send(call);
 669         return wb_cmd_checkmachacc_recv(c);
 670 }