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 lsa_lookupsids_state {
  39         struct composite_context *ctx;
  40         int num_sids;
  41         struct lsa_LookupSids r;
  42         struct lsa_SidArray sids;
  43         struct lsa_TransNameArray names;
  44         struct lsa_RefDomainList *domains;
  45         uint32_t count;
  46         struct wb_sid_object **result;
  47 };
  48
  49 static void lsa_lookupsids_recv_names(struct rpc_request *req);
  50
  51 struct composite_context *wb_lsa_lookupsids_send(TALLOC_CTX *mem_ctx,
  52                                                  struct dcerpc_pipe *lsa_pipe,
  53                                                  struct policy_handle *handle,
  54                                                  int num_sids,
  55                                                  const struct dom_sid **sids)
  56 {
  57         struct composite_context *result;
  58         struct rpc_request *req;
  59         struct lsa_lookupsids_state *state;
  60         int i;
  61
  62         result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
  63         if (result == NULL) goto failed;
  64
  65         state = talloc(result, struct lsa_lookupsids_state);
  66         if (state == NULL) goto failed;
  67         result->private_data = state;
  68         state->ctx = result;
  69
  70         state->sids.num_sids = num_sids;
  71         state->sids.sids = talloc_array(state, struct lsa_SidPtr, num_sids);
  72         if (state->sids.sids == NULL) goto failed;
  73
  74         for (i=0; i<num_sids; i++) {
  75                 state->sids.sids[i].sid = dom_sid_dup(state->sids.sids,
  76                                                       sids[i]);
  77                 if (state->sids.sids[i].sid == NULL) goto failed;
  78         }
  79
  80         state->domains = talloc(state, struct lsa_RefDomainList);
  81         if (state->domains == NULL) goto failed;
  82
  83         state->count = 0;
  84         state->num_sids = num_sids;
  85         state->names.count = 0;
  86         state->names.names = NULL;
  87
  88         state->r.in.handle = handle;
  89         state->r.in.sids = &state->sids;
  90         state->r.in.names = &state->names;
  91         state->r.in.level = 1;
  92         state->r.in.count = &state->count;
  93         state->r.out.names = &state->names;
  94         state->r.out.count = &state->count;
  95         state->r.out.domains = &state->domains;
  96
  97         req = dcerpc_lsa_LookupSids_send(lsa_pipe, state, &state->r);
  98         if (req == NULL) goto failed;
  99
 100         req->async.callback = lsa_lookupsids_recv_names;
 101         req->async.private_data = state;
 102         return result;
 103
 104  failed:
 105         talloc_free(result);
 106         return NULL;
 107 }
 108
 109 static void lsa_lookupsids_recv_names(struct rpc_request *req)
 110 {
 111         struct lsa_lookupsids_state *state =
 112                 talloc_get_type(req->async.private_data,
 113                                 struct lsa_lookupsids_state);
 114         int i;
 115
 116         state->ctx->status = dcerpc_ndr_request_recv(req);
 117         if (!composite_is_ok(state->ctx)) return;
 118         state->ctx->status = state->r.out.result;
 119         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 120             !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 121                 composite_error(state->ctx, state->ctx->status);
 122                 return;
 123         }
 124
 125         state->result = talloc_array(state, struct wb_sid_object *,
 126                                      state->num_sids);
 127         if (composite_nomem(state->result, state->ctx)) return;
 128
 129         for (i=0; i<state->num_sids; i++) {
 130                 struct lsa_TranslatedName *name =
 131                         &state->r.out.names->names[i];
 132                 struct lsa_DomainInfo *dom;
 133                 struct lsa_RefDomainList *domains =
 134                         state->domains;
 135
 136                 state->result[i] = talloc_zero(state->result,
 137                                                struct wb_sid_object);
 138                 if (composite_nomem(state->result[i], state->ctx)) return;
 139
 140                 state->result[i]->type = name->sid_type;
 141                 if (state->result[i]->type == SID_NAME_UNKNOWN) {
 142                         continue;
 143                 }
 144
 145                 if (name->sid_index >= domains->count) {
 146                         composite_error(state->ctx,
 147                                         NT_STATUS_INVALID_PARAMETER);
 148                         return;
 149                 }
 150
 151                 dom = &domains->domains[name->sid_index];
 152                 state->result[i]->domain = talloc_reference(state->result[i],
 153                                                             dom->name.string);
 154                 if ((name->sid_type == SID_NAME_DOMAIN) ||
 155                     (name->name.string == NULL)) {
 156                         state->result[i]->name =
 157                                 talloc_strdup(state->result[i], "");
 158                 } else {
 159                         state->result[i]->name =
 160                                 talloc_steal(state->result[i],
 161                                              name->name.string);
 162                 }
 163
 164                 if (composite_nomem(state->result[i]->name, state->ctx)) {
 165                         return;
 166                 }
 167         }
 168
 169         composite_done(state->ctx);
 170 }
 171
 172 NTSTATUS wb_lsa_lookupsids_recv(struct composite_context *c,
 173                                 TALLOC_CTX *mem_ctx,
 174                                 struct wb_sid_object ***names)
 175 {
 176         NTSTATUS status = composite_wait(c);
 177         if (NT_STATUS_IS_OK(status)) {
 178                 struct lsa_lookupsids_state *state =
 179                         talloc_get_type(c->private_data,
 180                                         struct lsa_lookupsids_state);
 181                 *names = talloc_steal(mem_ctx, state->result);
 182         }
 183         talloc_free(c);
 184         return status;
 185 }
 186
 187
 188 struct lsa_lookupnames_state {
 189         struct composite_context *ctx;
 190         uint32_t num_names;
 191         struct lsa_LookupNames r;
 192         struct lsa_TransSidArray sids;
 193         struct lsa_RefDomainList *domains;
 194         uint32_t count;
 195         struct wb_sid_object **result;
 196 };
 197
 198 static void lsa_lookupnames_recv_sids(struct rpc_request *req);
 199
 200 struct composite_context *wb_lsa_lookupnames_send(TALLOC_CTX *mem_ctx,
 201                                                   struct dcerpc_pipe *lsa_pipe,
 202                                                   struct policy_handle *handle,
 203                                                   int num_names,
 204                                                   const char **names)
 205 {
 206         struct composite_context *result;
 207         struct rpc_request *req;
 208         struct lsa_lookupnames_state *state;
 209
 210         struct lsa_String *lsa_names;
 211         int i;
 212
 213         result = composite_create(mem_ctx, lsa_pipe->conn->event_ctx);
 214         if (result == NULL) goto failed;
 215
 216         state = talloc(result, struct lsa_lookupnames_state);
 217         if (state == NULL) goto failed;
 218         result->private_data = state;
 219         state->ctx = result;
 220
 221         state->sids.count = 0;
 222         state->sids.sids = NULL;
 223         state->num_names = num_names;
 224         state->count = 0;
 225
 226         lsa_names = talloc_array(state, struct lsa_String, num_names);
 227         if (lsa_names == NULL) goto failed;
 228
 229         for (i=0; i<num_names; i++) {
 230                 lsa_names[i].string = names[i];
 231         }
 232
 233         state->domains = talloc(state, struct lsa_RefDomainList);
 234         if (state->domains == NULL) goto failed;
 235
 236         state->r.in.handle = handle;
 237         state->r.in.num_names = num_names;
 238         state->r.in.names = lsa_names;
 239         state->r.in.sids = &state->sids;
 240         state->r.in.level = 1;
 241         state->r.in.count = &state->count;
 242         state->r.out.count = &state->count;
 243         state->r.out.sids = &state->sids;
 244         state->r.out.domains = &state->domains;
 245
 246         req = dcerpc_lsa_LookupNames_send(lsa_pipe, state, &state->r);
 247         if (req == NULL) goto failed;
 248
 249         req->async.callback = lsa_lookupnames_recv_sids;
 250         req->async.private_data = state;
 251         return result;
 252
 253  failed:
 254         talloc_free(result);
 255         return NULL;
 256 }
 257
 258 static void lsa_lookupnames_recv_sids(struct rpc_request *req)
 259 {
 260         struct lsa_lookupnames_state *state =
 261                 talloc_get_type(req->async.private_data,
 262                                 struct lsa_lookupnames_state);
 263         int i;
 264
 265         state->ctx->status = dcerpc_ndr_request_recv(req);
 266         if (!composite_is_ok(state->ctx)) return;
 267         state->ctx->status = state->r.out.result;
 268         if (!NT_STATUS_IS_OK(state->ctx->status) &&
 269             !NT_STATUS_EQUAL(state->ctx->status, STATUS_SOME_UNMAPPED)) {
 270                 composite_error(state->ctx, state->ctx->status);
 271                 return;
 272         }
 273
 274         state->result = talloc_array(state, struct wb_sid_object *,
 275                                      state->num_names);
 276         if (composite_nomem(state->result, state->ctx)) return;
 277
 278         for (i=0; i<state->num_names; i++) {
 279                 struct lsa_TranslatedSid *sid = &state->r.out.sids->sids[i];
 280                 struct lsa_RefDomainList *domains = state->domains;
 281                 struct lsa_DomainInfo *dom;
 282
 283                 state->result[i] = talloc_zero(state->result,
 284                                                struct wb_sid_object);
 285                 if (composite_nomem(state->result[i], state->ctx)) return;
 286
 287                 state->result[i]->type = sid->sid_type;
 288                 if (state->result[i]->type == SID_NAME_UNKNOWN) {
 289                         continue;
 290                 }
 291
 292                 if (sid->sid_index >= domains->count) {
 293                         composite_error(state->ctx,
 294                                         NT_STATUS_INVALID_PARAMETER);
 295                         return;
 296                 }
 297
 298                 dom = &domains->domains[sid->sid_index];
 299
 300                 state->result[i]->sid = dom_sid_add_rid(state->result[i],
 301                                                         dom->sid, sid->rid);
 302         }
 303
 304         composite_done(state->ctx);
 305 }
 306
 307 NTSTATUS wb_lsa_lookupnames_recv(struct composite_context *c,
 308                                  TALLOC_CTX *mem_ctx,
 309                                  struct wb_sid_object ***sids)
 310 {
 311         NTSTATUS status = composite_wait(c);
 312         if (NT_STATUS_IS_OK(status)) {
 313                 struct lsa_lookupnames_state *state =
 314                         talloc_get_type(c->private_data,
 315                                         struct lsa_lookupnames_state);
 316                 *sids = talloc_steal(mem_ctx, state->result);
 317         }
 318         talloc_free(c);
 319         return status;
 320 }
 321 struct samr_getuserdomgroups_state {
 322         struct composite_context *ctx;
 323         struct dcerpc_pipe *samr_pipe;
 324
 325         int num_rids;
 326         uint32_t *rids;
 327
 328         struct samr_RidWithAttributeArray *rid_array;
 329
 330         struct policy_handle *user_handle;
 331         struct samr_OpenUser o;
 332         struct samr_GetGroupsForUser g;
 333         struct samr_Close c;
 334 };
 335
 336 static void samr_usergroups_recv_open(struct rpc_request *req);
 337 static void samr_usergroups_recv_groups(struct rpc_request *req);
 338 static void samr_usergroups_recv_close(struct rpc_request *req);
 339
 340 struct composite_context *wb_samr_userdomgroups_send(TALLOC_CTX *mem_ctx,
 341                                                      struct dcerpc_pipe *samr_pipe,
 342                                                      struct policy_handle *domain_handle,
 343                                                      uint32_t rid)
 344 {
 345         struct composite_context *result;
 346         struct rpc_request *req;
 347         struct samr_getuserdomgroups_state *state;
 348
 349         result = composite_create(mem_ctx, samr_pipe->conn->event_ctx);
 350         if (result == NULL) goto failed;
 351
 352         state = talloc(result, struct samr_getuserdomgroups_state);
 353         if (state == NULL) goto failed;
 354         result->private_data = state;
 355         state->ctx = result;
 356
 357         state->samr_pipe = samr_pipe;
 358
 359         state->user_handle = talloc(state, struct policy_handle);
 360         if (state->user_handle == NULL) goto failed;
 361
 362         state->o.in.domain_handle = domain_handle;
 363         state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
 364         state->o.in.rid = rid;
 365         state->o.out.user_handle = state->user_handle;
 366
 367         req = dcerpc_samr_OpenUser_send(state->samr_pipe, state, &state->o);
 368         if (req == NULL) goto failed;
 369
 370         req->async.callback = samr_usergroups_recv_open;
 371         req->async.private_data = state;
 372         return result;
 373
 374  failed:
 375         talloc_free(result);
 376         return NULL;
 377 }
 378
 379 static void samr_usergroups_recv_open(struct rpc_request *req)
 380 {
 381         struct samr_getuserdomgroups_state *state =
 382                 talloc_get_type(req->async.private_data,
 383                                 struct samr_getuserdomgroups_state);
 384
 385         state->ctx->status = dcerpc_ndr_request_recv(req);
 386         if (!composite_is_ok(state->ctx)) return;
 387         state->ctx->status = state->o.out.result;
 388         if (!composite_is_ok(state->ctx)) return;
 389
 390         state->g.in.user_handle = state->user_handle;
 391         state->g.out.rids = &state->rid_array;
 392
 393         req = dcerpc_samr_GetGroupsForUser_send(state->samr_pipe, state,
 394                                                 &state->g);
 395         composite_continue_rpc(state->ctx, req, samr_usergroups_recv_groups,
 396                                state);
 397 }
 398
 399 static void samr_usergroups_recv_groups(struct rpc_request *req)
 400 {
 401         struct samr_getuserdomgroups_state *state =
 402                 talloc_get_type(req->async.private_data,
 403                                 struct samr_getuserdomgroups_state);
 404
 405         state->ctx->status = dcerpc_ndr_request_recv(req);
 406         if (!composite_is_ok(state->ctx)) return;
 407         state->ctx->status = state->g.out.result;
 408         if (!composite_is_ok(state->ctx)) return;
 409
 410         state->c.in.handle = state->user_handle;
 411         state->c.out.handle = state->user_handle;
 412
 413         req = dcerpc_samr_Close_send(state->samr_pipe, state, &state->c);
 414         composite_continue_rpc(state->ctx, req, samr_usergroups_recv_close,
 415                                state);
 416 }
 417
 418 static void samr_usergroups_recv_close(struct rpc_request *req)
 419 {
 420         struct samr_getuserdomgroups_state *state =
 421                 talloc_get_type(req->async.private_data,
 422                                 struct samr_getuserdomgroups_state);
 423
 424         state->ctx->status = dcerpc_ndr_request_recv(req);
 425         if (!composite_is_ok(state->ctx)) return;
 426         state->ctx->status = state->c.out.result;
 427         if (!composite_is_ok(state->ctx)) return;
 428
 429         composite_done(state->ctx);
 430 }
 431
 432 NTSTATUS wb_samr_userdomgroups_recv(struct composite_context *ctx,
 433                                     TALLOC_CTX *mem_ctx,
 434                                     int *num_rids, uint32_t **rids)
 435 {
 436         struct samr_getuserdomgroups_state *state =
 437                 talloc_get_type(ctx->private_data,
 438                                 struct samr_getuserdomgroups_state);
 439
 440         int i;
 441         NTSTATUS status = composite_wait(ctx);
 442         if (!NT_STATUS_IS_OK(status)) goto done;
 443
 444         *num_rids = state->rid_array->count;
 445         *rids = talloc_array(mem_ctx, uint32_t, *num_rids);
 446         if (*rids == NULL) {
 447                 status = NT_STATUS_NO_MEMORY;
 448                 goto done;
 449         }
 450
 451         for (i=0; i<*num_rids; i++) {
 452                 (*rids)[i] = state->rid_array->rids[i].rid;
 453         }
 454
 455  done:
 456         talloc_free(ctx);
 457         return status;
 458 }