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