source4/libnet/libnet_group.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Copyright (C) Rafal Szczesniak  2007
   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
  21 #include "includes.h"
  22 #include "libnet/libnet.h"
  23 #include "libcli/composite/composite.h"
  24 #include "librpc/gen_ndr/lsa.h"
  25 #include "librpc/gen_ndr/ndr_lsa_c.h"
  26 #include "librpc/gen_ndr/samr.h"
  27 #include "librpc/gen_ndr/ndr_samr_c.h"
  28 #include "libcli/security/security.h"
  29
  30
  31 struct create_group_state {
  32         struct libnet_context *ctx;
  33         struct libnet_CreateGroup r;
  34         struct libnet_DomainOpen domain_open;
  35         struct libnet_rpc_groupadd group_add;
  36
  37         /* information about the progress */
  38         void (*monitor_fn)(struct monitor_msg *);
  39 };
  40
  41
  42 static void continue_domain_opened(struct composite_context *ctx);
  43 static void continue_rpc_group_added(struct composite_context *ctx);
  44
  45
  46 struct composite_context* libnet_CreateGroup_send(struct libnet_context *ctx,
  47                                                   TALLOC_CTX *mem_ctx,
  48                                                   struct libnet_CreateGroup *r,
  49                                                   void (*monitor)(struct monitor_msg*))
  50 {
  51         struct composite_context *c;
  52         struct create_group_state *s;
  53         struct composite_context *create_req;
  54         bool prereq_met = false;
  55
  56         /* composite context allocation and setup */
  57         c = composite_create(mem_ctx, ctx->event_ctx);
  58         if (c == NULL) return NULL;
  59
  60         s = talloc_zero(c, struct create_group_state);
  61         if (composite_nomem(s, c)) return c;
  62
  63         c->private_data = s;
  64
  65         s->ctx = ctx;
  66         s->r   = *r;
  67         ZERO_STRUCT(s->r.out);
  68
  69         /* prerequisite: make sure we have a valid samr domain handle */
  70         prereq_met = samr_domain_opened(ctx, c, s->r.in.domain_name, &c, &s->domain_open,
  71                                         continue_domain_opened, monitor);
  72         if (!prereq_met) return c;
  73
  74         /* prepare arguments of rpc group add call */
  75         s->group_add.in.groupname     = r->in.group_name;
  76         s->group_add.in.domain_handle = ctx->samr.handle;
  77
  78         /* send the request */
  79         create_req = libnet_rpc_groupadd_send(s, s->ctx->event_ctx,
  80                                               ctx->samr.samr_handle,
  81                                               &s->group_add, monitor);
  82         if (composite_nomem(create_req, c)) return c;
  83
  84         composite_continue(c, create_req, continue_rpc_group_added, c);
  85         return c;
  86 }
  87
  88
  89 static void continue_domain_opened(struct composite_context *ctx)
  90 {
  91         struct composite_context *c;
  92         struct create_group_state *s;
  93         struct composite_context *create_req;
  94
  95         c = talloc_get_type_abort(ctx->async.private_data, struct composite_context);
  96         s = talloc_get_type_abort(c->private_data, struct create_group_state);
  97
  98         c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
  99         if (!composite_is_ok(c)) return;
 100
 101         /* prepare arguments of groupadd call */
 102         s->group_add.in.groupname     = s->r.in.group_name;
 103         s->group_add.in.domain_handle = s->ctx->samr.handle;
 104
 105         /* send the request */
 106         create_req = libnet_rpc_groupadd_send(s, s->ctx->event_ctx,
 107                                               s->ctx->samr.samr_handle,
 108                                               &s->group_add, s->monitor_fn);
 109         if (composite_nomem(create_req, c)) return;
 110
 111         composite_continue(c, create_req, continue_rpc_group_added, c);
 112 }
 113
 114
 115 static void continue_rpc_group_added(struct composite_context *ctx)
 116 {
 117         struct composite_context *c;
 118         struct create_group_state *s;
 119
 120         c = talloc_get_type_abort(ctx->async.private_data, struct composite_context);
 121         s = talloc_get_type_abort(c->private_data, struct create_group_state);
 122
 123         /* receive result of group add call */
 124         c->status = libnet_rpc_groupadd_recv(ctx, c, &s->group_add);
 125         if (!composite_is_ok(c)) return;
 126
 127         /* we're done */
 128         composite_done(c);
 129 }
 130
 131
 132 /**
 133  * Receive result of CreateGroup call
 134  *
 135  * @param c composite context returned by send request routine
 136  * @param mem_ctx memory context of this call
 137  * @param r pointer to a structure containing arguments and result of this call
 138  * @return nt status
 139  */
 140 NTSTATUS libnet_CreateGroup_recv(struct composite_context *c,
 141                                  TALLOC_CTX *mem_ctx,
 142                                  struct libnet_CreateGroup *r)
 143 {
 144         NTSTATUS status;
 145
 146         status = composite_wait(c);
 147         if (!NT_STATUS_IS_OK(status)) {
 148                 r->out.error_string = talloc_strdup(mem_ctx, nt_errstr(status));
 149         }
 150
 151         talloc_free(c);
 152         return status;
 153 }
 154
 155
 156 /**
 157  * Create domain group
 158  *
 159  * @param ctx initialised libnet context
 160  * @param mem_ctx memory context of this call
 161  * @param io pointer to structure containing arguments and result of this call
 162  * @return nt status
 163  */
 164 NTSTATUS libnet_CreateGroup(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
 165                             struct libnet_CreateGroup *io)
 166 {
 167         struct composite_context *c;
 168
 169         c = libnet_CreateGroup_send(ctx, mem_ctx, io, NULL);
 170         return libnet_CreateGroup_recv(c, mem_ctx, io);
 171 }
 172
 173
 174 struct group_info_state {
 175         struct libnet_context *ctx;
 176         const char *domain_name;
 177         enum libnet_GroupInfo_level level;
 178         const char *group_name;
 179         const char *sid_string;
 180         struct libnet_LookupName lookup;
 181         struct libnet_DomainOpen domopen;
 182         struct libnet_rpc_groupinfo info;
 183
 184         /* information about the progress */
 185         void (*monitor_fn)(struct monitor_msg *);
 186 };
 187
 188
 189 static void continue_domain_open_info(struct composite_context *ctx);
 190 static void continue_name_found(struct composite_context *ctx);
 191 static void continue_group_info(struct composite_context *ctx);
 192
 193 /**
 194  * Sends request to get group information
 195  *
 196  * @param ctx initialised libnet context
 197  * @param mem_ctx memory context of this call
 198  * @param io pointer to structure containing arguments the call
 199  * @param monitor function pointer for receiving monitor messages
 200  * @return composite context of this request
 201  */
 202 struct composite_context* libnet_GroupInfo_send(struct libnet_context *ctx,
 203                                                 TALLOC_CTX *mem_ctx,
 204                                                 struct libnet_GroupInfo *io,
 205                                                 void (*monitor)(struct monitor_msg*))
 206 {
 207         struct composite_context *c;
 208         struct group_info_state *s;
 209         bool prereq_met = false;
 210         struct composite_context *lookup_req, *info_req;
 211
 212         /* composite context allocation and setup */
 213         c = composite_create(mem_ctx, ctx->event_ctx);
 214         if (c == NULL) return NULL;
 215
 216         s = talloc_zero(c, struct group_info_state);
 217         if (composite_nomem(s, c)) return c;
 218
 219         c->private_data = s;
 220
 221         /* store arguments in the state structure */
 222         s->monitor_fn = monitor;
 223         s->ctx = ctx;
 224         s->domain_name = talloc_strdup(c, io->in.domain_name);
 225         s->level = io->in.level;
 226         switch(s->level) {
 227         case GROUP_INFO_BY_NAME:
 228                 s->group_name = talloc_strdup(c, io->in.data.group_name);
 229                 s->sid_string = NULL;
 230                 break;
 231         case GROUP_INFO_BY_SID:
 232                 s->group_name = NULL;
 233                 s->sid_string = dom_sid_string(c, io->in.data.group_sid);
 234                 break;
 235         }
 236
 237         /* prerequisite: make sure the domain is opened */
 238         prereq_met = samr_domain_opened(ctx, c, s->domain_name, &c, &s->domopen,
 239                                         continue_domain_open_info, monitor);
 240         if (!prereq_met) return c;
 241
 242         switch(s->level) {
 243         case GROUP_INFO_BY_NAME:
 244                 /* prepare arguments for LookupName call */
 245                 s->lookup.in.name        = s->group_name;
 246                 s->lookup.in.domain_name = s->domain_name;
 247
 248                 /* send the request */
 249                 lookup_req = libnet_LookupName_send(s->ctx, c, &s->lookup, s->monitor_fn);
 250                 if (composite_nomem(lookup_req, c)) return c;
 251
 252                 /* set the next stage */
 253                 composite_continue(c, lookup_req, continue_name_found, c);
 254                 break;
 255         case GROUP_INFO_BY_SID:
 256                 /* prepare arguments for groupinfo call */
 257                 s->info.in.domain_handle = s->ctx->samr.handle;
 258                 s->info.in.sid           = s->sid_string;
 259                 /* we're looking for all information available */
 260                 s->info.in.level         = GROUPINFOALL;
 261
 262                 /* send the request */
 263                 info_req = libnet_rpc_groupinfo_send(s, s->ctx->event_ctx,
 264                                                      s->ctx->samr.samr_handle,
 265                                                      &s->info, s->monitor_fn);
 266                 if (composite_nomem(info_req, c)) return c;
 267
 268                 /* set the next stage */
 269                 composite_continue(c, info_req, continue_group_info, c);
 270                 break;
 271         }
 272
 273         return c;
 274 }
 275
 276
 277 /*
 278  * Stage 0.5 (optional): receive opened domain and send lookup name request
 279  */
 280 static void continue_domain_open_info(struct composite_context *ctx)
 281 {
 282         struct composite_context *c;
 283         struct group_info_state *s;
 284         struct composite_context *lookup_req, *info_req;
 285
 286         c = talloc_get_type_abort(ctx->async.private_data, struct composite_context);
 287         s = talloc_get_type_abort(c->private_data, struct group_info_state);
 288
 289         /* receive domain handle */
 290         c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domopen);
 291         if (!composite_is_ok(c)) return;
 292
 293         switch(s->level) {
 294         case GROUP_INFO_BY_NAME:
 295                 /* prepare arguments for LookupName call */
 296                 s->lookup.in.name        = s->group_name;
 297                 s->lookup.in.domain_name = s->domain_name;
 298
 299                 /* send the request */
 300                 lookup_req = libnet_LookupName_send(s->ctx, c, &s->lookup, s->monitor_fn);
 301                 if (composite_nomem(lookup_req, c)) return;
 302
 303                 /* set the next stage */
 304                 composite_continue(c, lookup_req, continue_name_found, c);
 305                 break;
 306         case GROUP_INFO_BY_SID:
 307                 /* prepare arguments for groupinfo call */
 308                 s->info.in.domain_handle = s->ctx->samr.handle;
 309                 s->info.in.sid           = s->sid_string;
 310                 /* we're looking for all information available */
 311                 s->info.in.level         = GROUPINFOALL;
 312
 313                 /* send the request */
 314                 info_req = libnet_rpc_groupinfo_send(s, s->ctx->event_ctx,
 315                                                      s->ctx->samr.samr_handle,
 316                                                      &s->info, s->monitor_fn);
 317                 if (composite_nomem(info_req, c)) return;
 318
 319                 /* set the next stage */
 320                 composite_continue(c, info_req, continue_group_info, c);
 321                 break;
 322
 323         }
 324 }
 325
 326
 327 /*
 328  * Stage 1: Receive SID found and send request for group info
 329  */
 330 static void continue_name_found(struct composite_context *ctx)
 331 {
 332         struct composite_context *c;
 333         struct group_info_state *s;
 334         struct composite_context *info_req;
 335
 336         c = talloc_get_type_abort(ctx->async.private_data, struct composite_context);
 337         s = talloc_get_type_abort(c->private_data, struct group_info_state);
 338
 339         /* receive SID assiociated with name found */
 340         c->status = libnet_LookupName_recv(ctx, c, &s->lookup);
 341         if (!composite_is_ok(c)) return;
 342
 343         /* Is is a group SID actually ? */
 344         if (s->lookup.out.sid_type != SID_NAME_DOM_GRP &&
 345             s->lookup.out.sid_type != SID_NAME_ALIAS) {
 346                 composite_error(c, NT_STATUS_NO_SUCH_GROUP);
 347                 return;
 348         }
 349
 350         /* prepare arguments for groupinfo call */
 351         s->info.in.domain_handle = s->ctx->samr.handle;
 352         s->info.in.groupname     = s->group_name;
 353         s->info.in.sid           = s->lookup.out.sidstr;
 354         /* we're looking for all information available */
 355         s->info.in.level         = GROUPINFOALL;
 356
 357         /* send the request */
 358         info_req = libnet_rpc_groupinfo_send(s, s->ctx->event_ctx,
 359                                              s->ctx->samr.samr_handle,
 360                                              &s->info, s->monitor_fn);
 361         if (composite_nomem(info_req, c)) return;
 362
 363         /* set the next stage */
 364         composite_continue(c, info_req, continue_group_info, c);
 365 }
 366
 367
 368 /*
 369  * Stage 2: Receive group information
 370  */
 371 static void continue_group_info(struct composite_context *ctx)
 372 {
 373         struct composite_context *c;
 374         struct group_info_state *s;
 375
 376         c = talloc_get_type_abort(ctx->async.private_data, struct composite_context);
 377         s = talloc_get_type_abort(c->private_data, struct group_info_state);
 378
 379         /* receive group information */
 380         c->status = libnet_rpc_groupinfo_recv(ctx, c, &s->info);
 381         if (!composite_is_ok(c)) return;
 382
 383         /* we're done */
 384         composite_done(c);
 385 }
 386
 387
 388 /*
 389  * Receive group information
 390  *
 391  * @param c composite context returned by libnet_GroupInfo_send
 392  * @param mem_ctx memory context of this call
 393  * @param io pointer to structure receiving results of the call
 394  * @result nt status
 395  */
 396 NTSTATUS libnet_GroupInfo_recv(struct composite_context* c, TALLOC_CTX *mem_ctx,
 397                                struct libnet_GroupInfo *io)
 398 {
 399         NTSTATUS status;
 400         struct group_info_state *s;
 401
 402         status = composite_wait(c);
 403         if (NT_STATUS_IS_OK(status)) {
 404                 /* put the results into io structure if everything went fine */
 405                 s = talloc_get_type_abort(c->private_data, struct group_info_state);
 406
 407                 io->out.group_name = talloc_steal(mem_ctx,
 408                                         s->info.out.info.all.name.string);
 409                 io->out.group_sid = talloc_steal(mem_ctx, s->lookup.out.sid);
 410                 io->out.num_members = s->info.out.info.all.num_members;
 411                 io->out.description = talloc_steal(mem_ctx, s->info.out.info.all.description.string);
 412
 413                 io->out.error_string = talloc_strdup(mem_ctx, "Success");
 414
 415         } else {
 416                 io->out.error_string = talloc_asprintf(mem_ctx, "Error: %s", nt_errstr(status));
 417         }
 418
 419         talloc_free(c);
 420         return status;
 421 }
 422
 423
 424 /**
 425  * Obtains specified group information
 426  *
 427  * @param ctx initialised libnet context
 428  * @param mem_ctx memory context of the call
 429  * @param io pointer to a structure containing arguments and results of the call
 430  */
 431 NTSTATUS libnet_GroupInfo(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
 432                           struct libnet_GroupInfo *io)
 433 {
 434         struct composite_context *c = libnet_GroupInfo_send(ctx, mem_ctx,
 435                                                             io, NULL);
 436         return libnet_GroupInfo_recv(c, mem_ctx, io);
 437 }
 438
 439
 440 struct grouplist_state {
 441         struct libnet_context *ctx;
 442         const char *domain_name;
 443         struct lsa_DomainInfo dominfo;
 444         int page_size;
 445         uint32_t resume_index;
 446         struct grouplist *groups;
 447         uint32_t count;
 448
 449         struct libnet_DomainOpen domain_open;
 450         struct lsa_QueryInfoPolicy query_domain;
 451         struct samr_EnumDomainGroups group_list;
 452
 453         void (*monitor_fn)(struct monitor_msg*);
 454 };
 455
 456
 457 static void continue_lsa_domain_opened(struct composite_context *ctx);
 458 static void continue_domain_queried(struct tevent_req *subreq);
 459 static void continue_samr_domain_opened(struct composite_context *ctx);
 460 static void continue_groups_enumerated(struct tevent_req *subreq);
 461
 462
 463 /**
 464  * Sends request to list (enumerate) group accounts
 465  *
 466  * @param ctx initialised libnet context
 467  * @param mem_ctx memory context of this call
 468  * @param io pointer to structure containing arguments and results of this call
 469  * @param monitor function pointer for receiving monitor messages
 470  * @return compostite context of this request
 471  */
 472 struct composite_context *libnet_GroupList_send(struct libnet_context *ctx,
 473                                                 TALLOC_CTX *mem_ctx,
 474                                                 struct libnet_GroupList *io,
 475                                                 void (*monitor)(struct monitor_msg*))
 476 {
 477         struct composite_context *c;
 478         struct grouplist_state *s;
 479         struct tevent_req *subreq;
 480         bool prereq_met = false;
 481
 482         /* composite context allocation and setup */
 483         c = composite_create(mem_ctx, ctx->event_ctx);
 484         if (c == NULL) return NULL;
 485
 486         s = talloc_zero(c, struct grouplist_state);
 487         if (composite_nomem(s, c)) return c;
 488
 489         c->private_data = s;
 490
 491         /* store the arguments in the state structure */
 492         s->ctx          = ctx;
 493         s->page_size    = io->in.page_size;
 494         s->resume_index = io->in.resume_index;
 495         s->domain_name  = talloc_strdup(c, io->in.domain_name);
 496         s->monitor_fn   = monitor;
 497
 498         /* make sure we have lsa domain handle before doing anything */
 499         prereq_met = lsa_domain_opened(ctx, c, s->domain_name, &c, &s->domain_open,
 500                                        continue_lsa_domain_opened, monitor);
 501         if (!prereq_met) return c;
 502
 503         /* prepare arguments of QueryDomainInfo call */
 504         s->query_domain.in.handle = &ctx->lsa.handle;
 505         s->query_domain.in.level  = LSA_POLICY_INFO_DOMAIN;
 506         s->query_domain.out.info  = talloc_zero(c, union lsa_PolicyInformation *);
 507         if (composite_nomem(s->query_domain.out.info, c)) return c;
 508
 509         /* send the request */
 510         subreq = dcerpc_lsa_QueryInfoPolicy_r_send(s, c->event_ctx,
 511                                                    ctx->lsa.pipe->binding_handle,
 512                                                    &s->query_domain);
 513         if (composite_nomem(subreq, c)) return c;
 514
 515         tevent_req_set_callback(subreq, continue_domain_queried, c);
 516         return c;
 517 }
 518
 519
 520 /*
 521  * Stage 0.5 (optional): receive lsa domain handle and send
 522  * request to query domain info
 523  */
 524 static void continue_lsa_domain_opened(struct composite_context *ctx)
 525 {
 526         struct composite_context *c;
 527         struct grouplist_state *s;
 528         struct tevent_req *subreq;
 529
 530         c = talloc_get_type_abort(ctx->async.private_data, struct composite_context);
 531         s = talloc_get_type_abort(c->private_data, struct grouplist_state);
 532
 533         /* receive lsa domain handle */
 534         c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
 535         if (!composite_is_ok(c)) return;
 536
 537         /* prepare arguments of QueryDomainInfo call */
 538         s->query_domain.in.handle = &s->ctx->lsa.handle;
 539         s->query_domain.in.level  = LSA_POLICY_INFO_DOMAIN;
 540         s->query_domain.out.info  = talloc_zero(c, union lsa_PolicyInformation *);
 541         if (composite_nomem(s->query_domain.out.info, c)) return;
 542
 543         /* send the request */
 544         subreq = dcerpc_lsa_QueryInfoPolicy_r_send(s, c->event_ctx,
 545                                                    s->ctx->lsa.pipe->binding_handle,
 546                                                    &s->query_domain);
 547         if (composite_nomem(subreq, c)) return;
 548
 549         tevent_req_set_callback(subreq, continue_domain_queried, c);
 550 }
 551
 552
 553 /*
 554  * Stage 1: receive domain info and request to enum groups
 555  * provided a valid samr handle is opened
 556  */
 557 static void continue_domain_queried(struct tevent_req *subreq)
 558 {
 559         struct composite_context *c;
 560         struct grouplist_state *s;
 561         bool prereq_met = false;
 562
 563         c = tevent_req_callback_data(subreq, struct composite_context);
 564         s = talloc_get_type_abort(c->private_data, struct grouplist_state);
 565
 566         /* receive result of rpc request */
 567         c->status = dcerpc_lsa_QueryInfoPolicy_r_recv(subreq, s);
 568         TALLOC_FREE(subreq);
 569         if (!composite_is_ok(c)) return;
 570
 571         /* get the returned domain info */
 572         s->dominfo = (*s->query_domain.out.info)->domain;
 573
 574         /* make sure we have samr domain handle before continuing */
 575         prereq_met = samr_domain_opened(s->ctx, c, s->domain_name, &c, &s->domain_open,
 576                                         continue_samr_domain_opened, s->monitor_fn);
 577         if (!prereq_met) return;
 578
 579         /* prepare arguments od EnumDomainGroups call */
 580         s->group_list.in.domain_handle  = &s->ctx->samr.handle;
 581         s->group_list.in.max_size       = s->page_size;
 582         s->group_list.in.resume_handle  = &s->resume_index;
 583         s->group_list.out.resume_handle = &s->resume_index;
 584         s->group_list.out.num_entries   = talloc(s, uint32_t);
 585         if (composite_nomem(s->group_list.out.num_entries, c)) return;
 586         s->group_list.out.sam           = talloc(s, struct samr_SamArray *);
 587         if (composite_nomem(s->group_list.out.sam, c)) return;
 588
 589         /* send the request */
 590         subreq = dcerpc_samr_EnumDomainGroups_r_send(s, c->event_ctx,
 591                                                      s->ctx->samr.pipe->binding_handle,
 592                                                      &s->group_list);
 593         if (composite_nomem(subreq, c)) return;
 594
 595         tevent_req_set_callback(subreq, continue_groups_enumerated, c);
 596 }
 597
 598
 599 /*
 600  * Stage 1.5 (optional): receive samr domain handle
 601  * and request to enumerate accounts
 602  */
 603 static void continue_samr_domain_opened(struct composite_context *ctx)
 604 {
 605         struct composite_context *c;
 606         struct grouplist_state *s;
 607         struct tevent_req *subreq;
 608
 609         c = talloc_get_type_abort(ctx->async.private_data, struct composite_context);
 610         s = talloc_get_type_abort(c->private_data, struct grouplist_state);
 611
 612         /* receive samr domain handle */
 613         c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
 614         if (!composite_is_ok(c)) return;
 615
 616         /* prepare arguments of EnumDomainGroups call */
 617         s->group_list.in.domain_handle  = &s->ctx->samr.handle;
 618         s->group_list.in.max_size       = s->page_size;
 619         s->group_list.in.resume_handle  = &s->resume_index;
 620         s->group_list.out.resume_handle = &s->resume_index;
 621         s->group_list.out.num_entries   = talloc(s, uint32_t);
 622         if (composite_nomem(s->group_list.out.num_entries, c)) return;
 623         s->group_list.out.sam           = talloc(s, struct samr_SamArray *);
 624         if (composite_nomem(s->group_list.out.sam, c)) return;
 625
 626         /* send the request */
 627         subreq = dcerpc_samr_EnumDomainGroups_r_send(s, c->event_ctx,
 628                                                      s->ctx->samr.pipe->binding_handle,
 629                                                      &s->group_list);
 630         if (composite_nomem(subreq, c)) return;
 631
 632         tevent_req_set_callback(subreq, continue_groups_enumerated, c);
 633 }
 634
 635
 636 /*
 637  * Stage 2: receive enumerated groups and their rids
 638  */
 639 static void continue_groups_enumerated(struct tevent_req *subreq)
 640 {
 641         struct composite_context *c;
 642         struct grouplist_state *s;
 643         uint32_t i;
 644
 645         c = tevent_req_callback_data(subreq, struct composite_context);
 646         s = talloc_get_type_abort(c->private_data, struct grouplist_state);
 647
 648         /* receive result of rpc request */
 649         c->status = dcerpc_samr_EnumDomainGroups_r_recv(subreq, s);
 650         TALLOC_FREE(subreq);
 651         if (!composite_is_ok(c)) return;
 652
 653         /* get the actual status of the rpc call result
 654            (instead of rpc layer) */
 655         c->status = s->group_list.out.result;
 656
 657         /* we're interested in status "ok" as well as two
 658            enum-specific status codes */
 659         if (NT_STATUS_IS_OK(c->status) ||
 660             NT_STATUS_EQUAL(c->status, STATUS_MORE_ENTRIES) ||
 661             NT_STATUS_EQUAL(c->status, NT_STATUS_NO_MORE_ENTRIES)) {
 662
 663                 /* get enumerated accounts counter and resume handle (the latter allows
 664                    making subsequent call to continue enumeration) */
 665                 s->resume_index = *s->group_list.out.resume_handle;
 666                 s->count        = *s->group_list.out.num_entries;
 667
 668                 /* prepare returned group accounts array */
 669                 s->groups       = talloc_array(c, struct grouplist, (*s->group_list.out.sam)->count);
 670                 if (composite_nomem(s->groups, c)) return;
 671
 672                 for (i = 0; i < (*s->group_list.out.sam)->count; i++) {
 673                         struct dom_sid *group_sid;
 674                         struct samr_SamEntry *entry = &(*s->group_list.out.sam)->entries[i];
 675                         struct dom_sid *domain_sid = (*s->query_domain.out.info)->domain.sid;
 676
 677                         /* construct group sid from returned rid and queried domain sid */
 678                         group_sid = dom_sid_add_rid(c, domain_sid, entry->idx);
 679                         if (composite_nomem(group_sid, c)) return;
 680
 681                         /* groupname */
 682                         s->groups[i].groupname = talloc_strdup(s->groups, entry->name.string);
 683                         if (composite_nomem(s->groups[i].groupname, c)) return;
 684
 685                         /* sid string */
 686                         s->groups[i].sid = dom_sid_string(s->groups, group_sid);
 687                         if (composite_nomem(s->groups[i].sid, c)) return;
 688                 }
 689
 690                 /* that's it */
 691                 composite_done(c);
 692                 return;
 693         } else {
 694                 /* something went wrong */
 695                 composite_error(c, c->status);
 696                 return;
 697         }
 698 }
 699
 700
 701 /**
 702  * Receive result of GroupList call
 703  *
 704  * @param c composite context returned by send request routine
 705  * @param mem_ctx memory context of this call
 706  * @param io pointer to structure containing arguments and result of this call
 707  * @param nt status
 708  */
 709 NTSTATUS libnet_GroupList_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
 710                                struct libnet_GroupList *io)
 711 {
 712         NTSTATUS status;
 713         struct grouplist_state *s;
 714
 715         if (c == NULL || mem_ctx == NULL || io == NULL) {
 716                 talloc_free(c);
 717                 return NT_STATUS_INVALID_PARAMETER;
 718         }
 719
 720         status = composite_wait(c);
 721         if (NT_STATUS_IS_OK(status) ||
 722             NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES) ||
 723             NT_STATUS_EQUAL(status, NT_STATUS_NO_MORE_ENTRIES)) {
 724
 725                 s = talloc_get_type_abort(c->private_data, struct grouplist_state);
 726
 727                 /* get results from composite context */
 728                 io->out.count        = s->count;
 729                 io->out.resume_index = s->resume_index;
 730                 io->out.groups       = talloc_steal(mem_ctx, s->groups);
 731
 732                 if (NT_STATUS_IS_OK(status)) {
 733                         io->out.error_string = talloc_asprintf(mem_ctx, "Success");
 734                 } else {
 735                         /* success, but we're not done yet */
 736                         io->out.error_string = talloc_asprintf(mem_ctx, "Success (status: %s)",
 737                                                                nt_errstr(status));
 738                 }
 739
 740         } else {
 741                 io->out.error_string = talloc_asprintf(mem_ctx, "Error: %s", nt_errstr(status));
 742         }
 743
 744         talloc_free(c);
 745         return status;
 746 }
 747
 748
 749 /**
 750  * Enumerate domain groups
 751  *
 752  * @param ctx initialised libnet context
 753  * @param mem_ctx memory context of this call
 754  * @param io pointer to structure containing arguments and result of this call
 755  * @return nt status
 756  */
 757 NTSTATUS libnet_GroupList(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
 758                           struct libnet_GroupList *io)
 759 {
 760         struct composite_context *c;
 761
 762         c = libnet_GroupList_send(ctx, mem_ctx, io, NULL);
 763         return libnet_GroupList_recv(c, mem_ctx, io);
 764 }