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