source4/ldap_server/ldap_backend.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP server
   4    Copyright (C) Stefan Metzmacher 2004
   5    Copyright (C) Matthias Dieter Wallnöfer 2009
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "ldap_server/ldap_server.h"
  23 #include "../lib/util/dlinklist.h"
  24 #include "auth/credentials/credentials.h"
  25 #include "auth/gensec/gensec.h"
  26 #include "auth/gensec/gensec_internal.h" /* TODO: remove this */
  27 #include "param/param.h"
  28 #include "smbd/service_stream.h"
  29 #include "dsdb/samdb/samdb.h"
  30 #include <ldb_errors.h>
  31 #include <ldb_module.h>
  32 #include "ldb_wrap.h"
  33
  34 static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
  35         const char *add_err_string, const char **errstring)
  36 {
  37         WERROR err;
  38
  39         /* Certain LDB modules need to return very special WERROR codes. Proof
  40          * for them here and if they exist skip the rest of the mapping. */
  41         if (add_err_string != NULL) {
  42                 char *endptr;
  43                 strtol(add_err_string, &endptr, 16);
  44                 if (endptr != add_err_string) {
  45                         *errstring = add_err_string;
  46                         return ldb_err;
  47                 }
  48         }
  49
  50         /* Otherwise we calculate here a generic, but appropriate WERROR. */
  51
  52         switch (ldb_err) {
  53         case LDB_SUCCESS:
  54                 err = WERR_OK;
  55         break;
  56         case LDB_ERR_OPERATIONS_ERROR:
  57                 err = WERR_DS_OPERATIONS_ERROR;
  58         break;
  59         case LDB_ERR_PROTOCOL_ERROR:
  60                 err = WERR_DS_PROTOCOL_ERROR;
  61         break;
  62         case LDB_ERR_TIME_LIMIT_EXCEEDED:
  63                 err = WERR_DS_TIMELIMIT_EXCEEDED;
  64         break;
  65         case LDB_ERR_SIZE_LIMIT_EXCEEDED:
  66                 err = WERR_DS_SIZELIMIT_EXCEEDED;
  67         break;
  68         case LDB_ERR_COMPARE_FALSE:
  69                 err = WERR_DS_COMPARE_FALSE;
  70         break;
  71         case LDB_ERR_COMPARE_TRUE:
  72                 err = WERR_DS_COMPARE_TRUE;
  73         break;
  74         case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
  75                 err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
  76         break;
  77         case LDB_ERR_STRONG_AUTH_REQUIRED:
  78                 err = WERR_DS_STRONG_AUTH_REQUIRED;
  79         break;
  80         case LDB_ERR_REFERRAL:
  81                 err = WERR_DS_REFERRAL;
  82         break;
  83         case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
  84                 err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
  85         break;
  86         case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
  87                 err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
  88         break;
  89         case LDB_ERR_CONFIDENTIALITY_REQUIRED:
  90                 err = WERR_DS_CONFIDENTIALITY_REQUIRED;
  91         break;
  92         case LDB_ERR_SASL_BIND_IN_PROGRESS:
  93                 err = WERR_DS_BUSY;
  94         break;
  95         case LDB_ERR_NO_SUCH_ATTRIBUTE:
  96                 err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
  97         break;
  98         case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
  99                 err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
 100         break;
 101         case LDB_ERR_INAPPROPRIATE_MATCHING:
 102                 err = WERR_DS_INAPPROPRIATE_MATCHING;
 103         break;
 104         case LDB_ERR_CONSTRAINT_VIOLATION:
 105                 err = WERR_DS_CONSTRAINT_VIOLATION;
 106         break;
 107         case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
 108                 err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
 109         break;
 110         case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
 111                 err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
 112         break;
 113         case LDB_ERR_NO_SUCH_OBJECT:
 114                 err = WERR_DS_NO_SUCH_OBJECT;
 115         break;
 116         case LDB_ERR_ALIAS_PROBLEM:
 117                 err = WERR_DS_ALIAS_PROBLEM;
 118         break;
 119         case LDB_ERR_INVALID_DN_SYNTAX:
 120                 err = WERR_DS_INVALID_DN_SYNTAX;
 121         break;
 122         case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
 123                 err = WERR_DS_ALIAS_DEREF_PROBLEM;
 124         break;
 125         case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
 126                 err = WERR_DS_INAPPROPRIATE_AUTH;
 127         break;
 128         case LDB_ERR_INVALID_CREDENTIALS:
 129                 err = WERR_ACCESS_DENIED;
 130         break;
 131         case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
 132                 err = WERR_DS_INSUFF_ACCESS_RIGHTS;
 133         break;
 134         case LDB_ERR_BUSY:
 135                 err = WERR_DS_BUSY;
 136         break;
 137         case LDB_ERR_UNAVAILABLE:
 138                 err = WERR_DS_UNAVAILABLE;
 139         break;
 140         case LDB_ERR_UNWILLING_TO_PERFORM:
 141                 err = WERR_DS_UNWILLING_TO_PERFORM;
 142         break;
 143         case LDB_ERR_LOOP_DETECT:
 144                 err = WERR_DS_LOOP_DETECT;
 145         break;
 146         case LDB_ERR_NAMING_VIOLATION:
 147                 err = WERR_DS_NAMING_VIOLATION;
 148         break;
 149         case LDB_ERR_OBJECT_CLASS_VIOLATION:
 150                 err = WERR_DS_OBJ_CLASS_VIOLATION;
 151         break;
 152         case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
 153                 err = WERR_DS_CANT_ON_NON_LEAF;
 154         break;
 155         case LDB_ERR_NOT_ALLOWED_ON_RDN:
 156                 err = WERR_DS_CANT_ON_RDN;
 157         break;
 158         case LDB_ERR_ENTRY_ALREADY_EXISTS:
 159                 err = WERR_DS_OBJ_STRING_NAME_EXISTS;
 160         break;
 161         case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
 162                 err = WERR_DS_CANT_MOD_OBJ_CLASS;
 163         break;
 164         case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
 165                 err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
 166         break;
 167         default:
 168                 err = WERR_DS_GENERIC_ERROR;
 169         break;
 170         }
 171
 172         *errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
 173                 add_err_string != NULL ? add_err_string : ldb_strerror(ldb_err));
 174
 175         /* result is 1:1 for now */
 176         return ldb_err;
 177 }
 178
 179 /*
 180   connect to the sam database
 181 */
 182 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
 183 {
 184         conn->ldb = samdb_connect(conn,
 185                                      conn->connection->event.ctx,
 186                                      conn->lp_ctx,
 187                                      conn->session_info,
 188                                      conn->global_catalog ? LDB_FLG_RDONLY : 0);
 189         if (conn->ldb == NULL) {
 190                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 191         }
 192
 193         if (conn->server_credentials) {
 194                 char **sasl_mechs = NULL;
 195                 const struct gensec_security_ops * const *backends = gensec_security_all();
 196                 const struct gensec_security_ops **ops
 197                         = gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
 198                 unsigned int i, j = 0;
 199                 for (i = 0; ops && ops[i]; i++) {
 200                         if (!lpcfg_parm_bool(conn->lp_ctx,  NULL, "gensec", ops[i]->name, ops[i]->enabled))
 201                                 continue;
 202
 203                         if (ops[i]->sasl_name && ops[i]->server_start) {
 204                                 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
 205
 206                                 if (!sasl_name) {
 207                                         return NT_STATUS_NO_MEMORY;
 208                                 }
 209                                 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
 210                                 if (!sasl_mechs) {
 211                                         return NT_STATUS_NO_MEMORY;
 212                                 }
 213                                 sasl_mechs[j] = sasl_name;
 214                                 talloc_steal(sasl_mechs, sasl_name);
 215                                 sasl_mechs[j+1] = NULL;
 216                                 j++;
 217                         }
 218                 }
 219                 talloc_unlink(conn, ops);
 220
 221                 /* ldb can have a different lifetime to conn, so we
 222                    need to ensure that sasl_mechs lives as long as the
 223                    ldb does */
 224                 talloc_steal(conn->ldb, sasl_mechs);
 225
 226                 ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
 227         }
 228
 229         ldb_set_opaque(conn->ldb, "remoteAddress",
 230                        conn->connection->remote_address);
 231
 232         return NT_STATUS_OK;
 233 }
 234
 235 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
 236 {
 237         struct ldapsrv_reply *reply;
 238
 239         reply = talloc(call, struct ldapsrv_reply);
 240         if (!reply) {
 241                 return NULL;
 242         }
 243         reply->msg = talloc(reply, struct ldap_message);
 244         if (reply->msg == NULL) {
 245                 talloc_free(reply);
 246                 return NULL;
 247         }
 248
 249         reply->msg->messageid = call->request->messageid;
 250         reply->msg->type = type;
 251         reply->msg->controls = NULL;
 252
 253         return reply;
 254 }
 255
 256 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
 257 {
 258         DLIST_ADD_END(call->replies, reply);
 259 }
 260
 261 static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
 262 {
 263         struct ldapsrv_reply *reply;
 264         struct ldap_ExtendedResponse *r;
 265
 266         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
 267
 268         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 269         if (!reply) {
 270                 return NT_STATUS_NO_MEMORY;
 271         }
 272
 273         r = &reply->msg->r.ExtendedResponse;
 274         r->response.resultcode = error;
 275         r->response.dn = NULL;
 276         r->response.errormessage = NULL;
 277         r->response.referral = NULL;
 278         r->oid = NULL;
 279         r->value = NULL;
 280
 281         ldapsrv_queue_reply(call, reply);
 282         return NT_STATUS_OK;
 283 }
 284
 285 static int ldapsrv_add_with_controls(struct ldapsrv_call *call,
 286                                      const struct ldb_message *message,
 287                                      struct ldb_control **controls,
 288                                      struct ldb_result *res)
 289 {
 290         struct ldb_context *ldb = call->conn->ldb;
 291         struct ldb_request *req;
 292         int ret;
 293
 294         ret = ldb_msg_sanity_check(ldb, message);
 295         if (ret != LDB_SUCCESS) {
 296                 return ret;
 297         }
 298
 299         ret = ldb_build_add_req(&req, ldb, ldb,
 300                                         message,
 301                                         controls,
 302                                         res,
 303                                         ldb_modify_default_callback,
 304                                         NULL);
 305
 306         if (ret != LDB_SUCCESS) return ret;
 307
 308         if (call->conn->global_catalog) {
 309                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 310         }
 311         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 312
 313         ret = ldb_transaction_start(ldb);
 314         if (ret != LDB_SUCCESS) {
 315                 return ret;
 316         }
 317
 318         if (!call->conn->is_privileged) {
 319                 ldb_req_mark_untrusted(req);
 320         }
 321
 322         LDB_REQ_SET_LOCATION(req);
 323
 324         ret = ldb_request(ldb, req);
 325         if (ret == LDB_SUCCESS) {
 326                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 327         }
 328
 329         if (ret == LDB_SUCCESS) {
 330                 ret = ldb_transaction_commit(ldb);
 331         }
 332         else {
 333                 ldb_transaction_cancel(ldb);
 334         }
 335
 336         talloc_free(req);
 337         return ret;
 338 }
 339
 340 /* create and execute a modify request */
 341 static int ldapsrv_mod_with_controls(struct ldapsrv_call *call,
 342                                      const struct ldb_message *message,
 343                                      struct ldb_control **controls,
 344                                      struct ldb_result *res)
 345 {
 346         struct ldb_context *ldb = call->conn->ldb;
 347         struct ldb_request *req;
 348         int ret;
 349
 350         ret = ldb_msg_sanity_check(ldb, message);
 351         if (ret != LDB_SUCCESS) {
 352                 return ret;
 353         }
 354
 355         ret = ldb_build_mod_req(&req, ldb, ldb,
 356                                         message,
 357                                         controls,
 358                                         res,
 359                                         ldb_modify_default_callback,
 360                                         NULL);
 361
 362         if (ret != LDB_SUCCESS) {
 363                 return ret;
 364         }
 365
 366         if (call->conn->global_catalog) {
 367                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 368         }
 369         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 370
 371         ret = ldb_transaction_start(ldb);
 372         if (ret != LDB_SUCCESS) {
 373                 return ret;
 374         }
 375
 376         if (!call->conn->is_privileged) {
 377                 ldb_req_mark_untrusted(req);
 378         }
 379
 380         LDB_REQ_SET_LOCATION(req);
 381
 382         ret = ldb_request(ldb, req);
 383         if (ret == LDB_SUCCESS) {
 384                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 385         }
 386
 387         if (ret == LDB_SUCCESS) {
 388                 ret = ldb_transaction_commit(ldb);
 389         }
 390         else {
 391                 ldb_transaction_cancel(ldb);
 392         }
 393
 394         talloc_free(req);
 395         return ret;
 396 }
 397
 398 /* create and execute a delete request */
 399 static int ldapsrv_del_with_controls(struct ldapsrv_call *call,
 400                                      struct ldb_dn *dn,
 401                                      struct ldb_control **controls,
 402                                      struct ldb_result *res)
 403 {
 404         struct ldb_context *ldb = call->conn->ldb;
 405         struct ldb_request *req;
 406         int ret;
 407
 408         ret = ldb_build_del_req(&req, ldb, ldb,
 409                                         dn,
 410                                         controls,
 411                                         res,
 412                                         ldb_modify_default_callback,
 413                                         NULL);
 414
 415         if (ret != LDB_SUCCESS) return ret;
 416
 417         if (call->conn->global_catalog) {
 418                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 419         }
 420         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 421
 422         ret = ldb_transaction_start(ldb);
 423         if (ret != LDB_SUCCESS) {
 424                 return ret;
 425         }
 426
 427         if (!call->conn->is_privileged) {
 428                 ldb_req_mark_untrusted(req);
 429         }
 430
 431         LDB_REQ_SET_LOCATION(req);
 432
 433         ret = ldb_request(ldb, req);
 434         if (ret == LDB_SUCCESS) {
 435                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 436         }
 437
 438         if (ret == LDB_SUCCESS) {
 439                 ret = ldb_transaction_commit(ldb);
 440         }
 441         else {
 442                 ldb_transaction_cancel(ldb);
 443         }
 444
 445         talloc_free(req);
 446         return ret;
 447 }
 448
 449 static int ldapsrv_rename_with_controls(struct ldapsrv_call *call,
 450                                         struct ldb_dn *olddn,
 451                                         struct ldb_dn *newdn,
 452                                         struct ldb_control **controls,
 453                                         struct ldb_result *res)
 454 {
 455         struct ldb_context *ldb = call->conn->ldb;
 456         struct ldb_request *req;
 457         int ret;
 458
 459         ret = ldb_build_rename_req(&req, ldb, ldb,
 460                                         olddn,
 461                                         newdn,
 462                                         controls,
 463                                         res,
 464                                         ldb_modify_default_callback,
 465                                         NULL);
 466
 467         if (ret != LDB_SUCCESS) return ret;
 468
 469         if (call->conn->global_catalog) {
 470                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 471         }
 472         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 473
 474         ret = ldb_transaction_start(ldb);
 475         if (ret != LDB_SUCCESS) {
 476                 return ret;
 477         }
 478
 479         if (!call->conn->is_privileged) {
 480                 ldb_req_mark_untrusted(req);
 481         }
 482
 483         LDB_REQ_SET_LOCATION(req);
 484
 485         ret = ldb_request(ldb, req);
 486         if (ret == LDB_SUCCESS) {
 487                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 488         }
 489
 490         if (ret == LDB_SUCCESS) {
 491                 ret = ldb_transaction_commit(ldb);
 492         }
 493         else {
 494                 ldb_transaction_cancel(ldb);
 495         }
 496
 497         talloc_free(req);
 498         return ret;
 499 }
 500
 501 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 502 {
 503         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 504         struct ldap_SearchResEntry *ent;
 505         struct ldap_Result *done;
 506         struct ldapsrv_reply *ent_r, *done_r;
 507         TALLOC_CTX *local_ctx;
 508         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 509         struct ldb_dn *basedn;
 510         struct ldb_result *res = NULL;
 511         struct ldb_request *lreq;
 512         struct ldb_control *search_control;
 513         struct ldb_search_options_control *search_options;
 514         struct ldb_control *extended_dn_control;
 515         struct ldb_extended_dn_control *extended_dn_decoded = NULL;
 516         struct ldb_control *notification_control = NULL;
 517         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 518         const char **attrs = NULL;
 519         const char *scope_str, *errstr = NULL;
 520         int success_limit = 1;
 521         int result = -1;
 522         int ldb_ret = -1;
 523         unsigned int i, j;
 524         int extended_type = 1;
 525
 526         DEBUG(10, ("SearchRequest"));
 527         DEBUGADD(10, (" basedn: %s", req->basedn));
 528         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 529
 530         local_ctx = talloc_new(call);
 531         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 532
 533         basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
 534         NT_STATUS_HAVE_NO_MEMORY(basedn);
 535
 536         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 537         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 538
 539         switch (req->scope) {
 540                 case LDAP_SEARCH_SCOPE_BASE:
 541                         scope_str = "BASE";
 542                         scope = LDB_SCOPE_BASE;
 543                         success_limit = 0;
 544                         break;
 545                 case LDAP_SEARCH_SCOPE_SINGLE:
 546                         scope_str = "ONE";
 547                         scope = LDB_SCOPE_ONELEVEL;
 548                         success_limit = 0;
 549                         break;
 550                 case LDAP_SEARCH_SCOPE_SUB:
 551                         scope_str = "SUB";
 552                         scope = LDB_SCOPE_SUBTREE;
 553                         success_limit = 0;
 554                         break;
 555                 default:
 556                         result = LDAP_PROTOCOL_ERROR;
 557                         map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
 558                                 &errstr);
 559                         errstr = talloc_asprintf(local_ctx,
 560                                 "%s. Invalid scope", errstr);
 561                         goto reply;
 562         }
 563         DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
 564
 565         if (req->num_attributes >= 1) {
 566                 attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
 567                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 568
 569                 for (i=0; i < req->num_attributes; i++) {
 570                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 571                         attrs[i] = req->attributes[i];
 572                 }
 573                 attrs[i] = NULL;
 574         }
 575
 576         DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
 577                  scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
 578
 579         res = talloc_zero(local_ctx, struct ldb_result);
 580         NT_STATUS_HAVE_NO_MEMORY(res);
 581
 582         ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
 583                                           basedn, scope,
 584                                           req->tree, attrs,
 585                                           call->request->controls,
 586                                           res, ldb_search_default_callback,
 587                                           NULL);
 588
 589         if (ldb_ret != LDB_SUCCESS) {
 590                 goto reply;
 591         }
 592
 593         if (call->conn->global_catalog) {
 594                 search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
 595
 596                 search_options = NULL;
 597                 if (search_control) {
 598                         search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
 599                         search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
 600                 } else {
 601                         search_options = talloc(lreq, struct ldb_search_options_control);
 602                         NT_STATUS_HAVE_NO_MEMORY(search_options);
 603                         search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
 604                         ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
 605                 }
 606         } else {
 607                 ldb_request_add_control(lreq, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 608         }
 609
 610         extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
 611
 612         if (extended_dn_control) {
 613                 if (extended_dn_control->data) {
 614                         extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
 615                         extended_type = extended_dn_decoded->type;
 616                 } else {
 617                         extended_type = 0;
 618                 }
 619         }
 620
 621         notification_control = ldb_request_get_control(lreq, LDB_CONTROL_NOTIFICATION_OID);
 622         if (notification_control != NULL) {
 623                 const struct ldapsrv_call *pc = NULL;
 624                 size_t count = 0;
 625
 626                 for (pc = call->conn->pending_calls; pc != NULL; pc = pc->next) {
 627                         count += 1;
 628                 }
 629
 630                 if (count >= call->conn->limits.max_notifications) {
 631                         DEBUG(10,("SearchRequest: error MaxNotificationPerConn\n"));
 632                         result = map_ldb_error(local_ctx,
 633                                                LDB_ERR_ADMIN_LIMIT_EXCEEDED,
 634                                                "MaxNotificationPerConn reached",
 635                                                &errstr);
 636                         goto reply;
 637                 }
 638
 639                 /*
 640                  * For now we need to do periodic retries on our own.
 641                  * As the dsdb_notification module will return after each run.
 642                  */
 643                 call->notification.busy = true;
 644         }
 645
 646         ldb_set_timeout(samdb, lreq, req->timelimit);
 647
 648         if (!call->conn->is_privileged) {
 649                 ldb_req_mark_untrusted(lreq);
 650         }
 651
 652         LDB_REQ_SET_LOCATION(lreq);
 653
 654         ldb_ret = ldb_request(samdb, lreq);
 655
 656         if (ldb_ret != LDB_SUCCESS) {
 657                 goto reply;
 658         }
 659
 660         ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
 661
 662         if (ldb_ret == LDB_SUCCESS) {
 663                 for (i = 0; i < res->count; i++) {
 664                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 665                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 666
 667                         /* Better to have the whole message kept here,
 668                          * than to find someone further up didn't put
 669                          * a value in the right spot in the talloc tree */
 670                         talloc_steal(ent_r, res->msgs[i]);
 671
 672                         ent = &ent_r->msg->r.SearchResultEntry;
 673                         ent->dn = ldb_dn_get_extended_linearized(ent_r, res->msgs[i]->dn, extended_type);
 674                         ent->num_attributes = 0;
 675                         ent->attributes = NULL;
 676                         if (res->msgs[i]->num_elements == 0) {
 677                                 goto queue_reply;
 678                         }
 679                         ent->num_attributes = res->msgs[i]->num_elements;
 680                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 681                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 682                         for (j=0; j < ent->num_attributes; j++) {
 683                                 ent->attributes[j].name = res->msgs[i]->elements[j].name;
 684                                 ent->attributes[j].num_values = 0;
 685                                 ent->attributes[j].values = NULL;
 686                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 687                                         continue;
 688                                 }
 689                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 690                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 691                         }
 692 queue_reply:
 693                         ldapsrv_queue_reply(call, ent_r);
 694                 }
 695
 696                 if (call->notification.busy) {
 697                         /* Move/Add it to the end */
 698                         DLIST_DEMOTE(call->conn->pending_calls, call);
 699                         call->notification.generation =
 700                                 call->conn->service->notification.generation;
 701
 702                         if (res->count != 0) {
 703                                 call->notification.generation += 1;
 704                                 ldapsrv_notification_retry_setup(call->conn->service,
 705                                                                  true);
 706                         }
 707
 708                         talloc_free(local_ctx);
 709                         return NT_STATUS_OK;
 710                 }
 711
 712                 /* Send back referrals if they do exist (search operations) */
 713                 if (res->refs != NULL) {
 714                         char **ref;
 715                         struct ldap_SearchResRef *ent_ref;
 716
 717                         for (ref = res->refs; *ref != NULL; ++ref) {
 718                                 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
 719                                 NT_STATUS_HAVE_NO_MEMORY(ent_r);
 720
 721                                 /* Better to have the whole referrals kept here,
 722                                  * than to find someone further up didn't put
 723                                  * a value in the right spot in the talloc tree
 724                                  */
 725                                 talloc_steal(ent_r, *ref);
 726
 727                                 ent_ref = &ent_r->msg->r.SearchResultReference;
 728                                 ent_ref->referral = *ref;
 729
 730                                 ldapsrv_queue_reply(call, ent_r);
 731                         }
 732                 }
 733         }
 734
 735 reply:
 736         DLIST_REMOVE(call->conn->pending_calls, call);
 737         call->notification.busy = false;
 738
 739         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 740         NT_STATUS_HAVE_NO_MEMORY(done_r);
 741
 742         done = &done_r->msg->r.SearchResultDone;
 743         done->dn = NULL;
 744         done->referral = NULL;
 745
 746         if (result != -1) {
 747         } else if (ldb_ret == LDB_SUCCESS) {
 748                 if (res->count >= success_limit) {
 749                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 750                         result = LDAP_SUCCESS;
 751                         errstr = NULL;
 752                 }
 753                 if (res->controls) {
 754                         done_r->msg->controls = res->controls;
 755                         talloc_steal(done_r, res->controls);
 756                 }
 757         } else {
 758                 DEBUG(10,("SearchRequest: error\n"));
 759                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
 760                                        &errstr);
 761         }
 762
 763         done->resultcode = result;
 764         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 765
 766         talloc_free(local_ctx);
 767
 768         ldapsrv_queue_reply(call, done_r);
 769         return NT_STATUS_OK;
 770 }
 771
 772 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 773 {
 774         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 775         struct ldap_Result *modify_result;
 776         struct ldapsrv_reply *modify_reply;
 777         TALLOC_CTX *local_ctx;
 778         struct ldb_context *samdb = call->conn->ldb;
 779         struct ldb_message *msg = NULL;
 780         struct ldb_dn *dn;
 781         const char *errstr = NULL;
 782         int result = LDAP_SUCCESS;
 783         int ldb_ret;
 784         unsigned int i,j;
 785         struct ldb_result *res = NULL;
 786
 787         DEBUG(10, ("ModifyRequest"));
 788         DEBUGADD(10, (" dn: %s\n", req->dn));
 789
 790         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 791         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 792
 793         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 794         NT_STATUS_HAVE_NO_MEMORY(dn);
 795
 796         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 797
 798         msg = talloc(local_ctx, struct ldb_message);
 799         NT_STATUS_HAVE_NO_MEMORY(msg);
 800
 801         msg->dn = dn;
 802         msg->num_elements = 0;
 803         msg->elements = NULL;
 804
 805         if (req->num_mods > 0) {
 806                 msg->num_elements = req->num_mods;
 807                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 808                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 809
 810                 for (i=0; i < msg->num_elements; i++) {
 811                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 812                         msg->elements[i].num_values = 0;
 813                         msg->elements[i].values = NULL;
 814
 815                         switch (req->mods[i].type) {
 816                         default:
 817                                 result = LDAP_PROTOCOL_ERROR;
 818                                 map_ldb_error(local_ctx,
 819                                         LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
 820                                 errstr = talloc_asprintf(local_ctx,
 821                                         "%s. Invalid LDAP_MODIFY_* type", errstr);
 822                                 goto reply;
 823                         case LDAP_MODIFY_ADD:
 824                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 825                                 break;
 826                         case LDAP_MODIFY_DELETE:
 827                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 828                                 break;
 829                         case LDAP_MODIFY_REPLACE:
 830                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 831                                 break;
 832                         }
 833
 834                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 835                         if (msg->elements[i].num_values > 0) {
 836                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 837                                                                        msg->elements[i].num_values);
 838                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 839
 840                                 for (j=0; j < msg->elements[i].num_values; j++) {
 841                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 842                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 843                                 }
 844                         }
 845                 }
 846         }
 847
 848 reply:
 849         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 850         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 851
 852         if (result == LDAP_SUCCESS) {
 853                 res = talloc_zero(local_ctx, struct ldb_result);
 854                 NT_STATUS_HAVE_NO_MEMORY(res);
 855                 ldb_ret = ldapsrv_mod_with_controls(call, msg, call->request->controls, res);
 856                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
 857                                        &errstr);
 858         }
 859
 860         modify_result = &modify_reply->msg->r.ModifyResponse;
 861         modify_result->dn = NULL;
 862         if ((res != NULL) && (res->refs != NULL)) {
 863                 modify_result->resultcode = map_ldb_error(local_ctx,
 864                                                           LDB_ERR_REFERRAL,
 865                                                           NULL, &errstr);
 866                 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 867                 modify_result->referral = talloc_strdup(call, *res->refs);
 868         } else {
 869                 modify_result->resultcode = result;
 870                 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 871                 modify_result->referral = NULL;
 872         }
 873         talloc_free(local_ctx);
 874
 875         ldapsrv_queue_reply(call, modify_reply);
 876         return NT_STATUS_OK;
 877
 878 }
 879
 880 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 881 {
 882         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 883         struct ldap_Result *add_result;
 884         struct ldapsrv_reply *add_reply;
 885         TALLOC_CTX *local_ctx;
 886         struct ldb_context *samdb = call->conn->ldb;
 887         struct ldb_message *msg = NULL;
 888         struct ldb_dn *dn;
 889         const char *errstr = NULL;
 890         int result = LDAP_SUCCESS;
 891         int ldb_ret;
 892         unsigned int i,j;
 893         struct ldb_result *res = NULL;
 894
 895         DEBUG(10, ("AddRequest"));
 896         DEBUGADD(10, (" dn: %s\n", req->dn));
 897
 898         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 899         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 900
 901         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 902         NT_STATUS_HAVE_NO_MEMORY(dn);
 903
 904         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 905
 906         msg = talloc(local_ctx, struct ldb_message);
 907         NT_STATUS_HAVE_NO_MEMORY(msg);
 908
 909         msg->dn = dn;
 910         msg->num_elements = 0;
 911         msg->elements = NULL;
 912
 913         if (req->num_attributes > 0) {
 914                 msg->num_elements = req->num_attributes;
 915                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 916                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 917
 918                 for (i=0; i < msg->num_elements; i++) {
 919                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 920                         msg->elements[i].flags = 0;
 921                         msg->elements[i].num_values = 0;
 922                         msg->elements[i].values = NULL;
 923
 924                         if (req->attributes[i].num_values > 0) {
 925                                 msg->elements[i].num_values = req->attributes[i].num_values;
 926                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 927                                                                        msg->elements[i].num_values);
 928                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 929
 930                                 for (j=0; j < msg->elements[i].num_values; j++) {
 931                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 932                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 933                                 }
 934                         }
 935                 }
 936         }
 937
 938         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 939         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 940
 941         if (result == LDAP_SUCCESS) {
 942                 res = talloc_zero(local_ctx, struct ldb_result);
 943                 NT_STATUS_HAVE_NO_MEMORY(res);
 944                 ldb_ret = ldapsrv_add_with_controls(call, msg, call->request->controls, res);
 945                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
 946                                        &errstr);
 947         }
 948
 949         add_result = &add_reply->msg->r.AddResponse;
 950         add_result->dn = NULL;
 951         if ((res != NULL) && (res->refs != NULL)) {
 952                 add_result->resultcode =  map_ldb_error(local_ctx,
 953                                                         LDB_ERR_REFERRAL, NULL,
 954                                                         &errstr);
 955                 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 956                 add_result->referral = talloc_strdup(call, *res->refs);
 957         } else {
 958                 add_result->resultcode = result;
 959                 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 960                 add_result->referral = NULL;
 961         }
 962         talloc_free(local_ctx);
 963
 964         ldapsrv_queue_reply(call, add_reply);
 965         return NT_STATUS_OK;
 966
 967 }
 968
 969 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 970 {
 971         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 972         struct ldap_Result *del_result;
 973         struct ldapsrv_reply *del_reply;
 974         TALLOC_CTX *local_ctx;
 975         struct ldb_context *samdb = call->conn->ldb;
 976         struct ldb_dn *dn;
 977         const char *errstr = NULL;
 978         int result = LDAP_SUCCESS;
 979         int ldb_ret;
 980         struct ldb_result *res = NULL;
 981
 982         DEBUG(10, ("DelRequest"));
 983         DEBUGADD(10, (" dn: %s\n", req->dn));
 984
 985         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 986         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 987
 988         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 989         NT_STATUS_HAVE_NO_MEMORY(dn);
 990
 991         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 992
 993         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 994         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 995
 996         if (result == LDAP_SUCCESS) {
 997                 res = talloc_zero(local_ctx, struct ldb_result);
 998                 NT_STATUS_HAVE_NO_MEMORY(res);
 999                 ldb_ret = ldapsrv_del_with_controls(call, dn, call->request->controls, res);
1000                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1001                                        &errstr);
1002         }
1003
1004         del_result = &del_reply->msg->r.DelResponse;
1005         del_result->dn = NULL;
1006         if ((res != NULL) && (res->refs != NULL)) {
1007                 del_result->resultcode = map_ldb_error(local_ctx,
1008                                                        LDB_ERR_REFERRAL, NULL,
1009                                                        &errstr);
1010                 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
1011                 del_result->referral = talloc_strdup(call, *res->refs);
1012         } else {
1013                 del_result->resultcode = result;
1014                 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
1015                 del_result->referral = NULL;
1016         }
1017
1018         talloc_free(local_ctx);
1019
1020         ldapsrv_queue_reply(call, del_reply);
1021         return NT_STATUS_OK;
1022 }
1023
1024 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
1025 {
1026         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
1027         struct ldap_Result *modifydn;
1028         struct ldapsrv_reply *modifydn_r;
1029         TALLOC_CTX *local_ctx;
1030         struct ldb_context *samdb = call->conn->ldb;
1031         struct ldb_dn *olddn, *newdn=NULL, *newrdn;
1032         struct ldb_dn *parentdn = NULL;
1033         const char *errstr = NULL;
1034         int result = LDAP_SUCCESS;
1035         int ldb_ret;
1036         struct ldb_result *res = NULL;
1037
1038         DEBUG(10, ("ModifyDNRequest"));
1039         DEBUGADD(10, (" dn: %s", req->dn));
1040         DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
1041
1042         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
1043         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1044
1045         olddn = ldb_dn_new(local_ctx, samdb, req->dn);
1046         NT_STATUS_HAVE_NO_MEMORY(olddn);
1047
1048         newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
1049         NT_STATUS_HAVE_NO_MEMORY(newrdn);
1050
1051         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
1052         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
1053
1054         if (ldb_dn_get_comp_num(newrdn) == 0) {
1055                 result = LDAP_PROTOCOL_ERROR;
1056                 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
1057                               &errstr);
1058                 goto reply;
1059         }
1060
1061         if (ldb_dn_get_comp_num(newrdn) > 1) {
1062                 result = LDAP_NAMING_VIOLATION;
1063                 map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
1064                               &errstr);
1065                 goto reply;
1066         }
1067
1068         /* we can't handle the rename if we should not remove the old dn */
1069         if (!req->deleteolddn) {
1070                 result = LDAP_UNWILLING_TO_PERFORM;
1071                 map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
1072                               &errstr);
1073                 errstr = talloc_asprintf(local_ctx,
1074                         "%s. Old RDN must be deleted", errstr);
1075                 goto reply;
1076         }
1077
1078         if (req->newsuperior) {
1079                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
1080                 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
1081         }
1082
1083         if (!parentdn) {
1084                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
1085         }
1086         if (!parentdn) {
1087                 result = LDAP_NO_SUCH_OBJECT;
1088                 map_ldb_error(local_ctx, LDB_ERR_NO_SUCH_OBJECT, NULL, &errstr);
1089                 goto reply;
1090         }
1091
1092         if ( ! ldb_dn_add_child(parentdn, newrdn)) {
1093                 result = LDAP_OTHER;
1094                 map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1095                 goto reply;
1096         }
1097         newdn = parentdn;
1098
1099 reply:
1100         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
1101         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
1102
1103         if (result == LDAP_SUCCESS) {
1104                 res = talloc_zero(local_ctx, struct ldb_result);
1105                 NT_STATUS_HAVE_NO_MEMORY(res);
1106                 ldb_ret = ldapsrv_rename_with_controls(call, olddn, newdn, call->request->controls, res);
1107                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1108                                        &errstr);
1109         }
1110
1111         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
1112         modifydn->dn = NULL;
1113         if ((res != NULL) && (res->refs != NULL)) {
1114                 modifydn->resultcode = map_ldb_error(local_ctx,
1115                                                      LDB_ERR_REFERRAL, NULL,
1116                                                      &errstr);;
1117                 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1118                 modifydn->referral = talloc_strdup(call, *res->refs);
1119         } else {
1120                 modifydn->resultcode = result;
1121                 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1122                 modifydn->referral = NULL;
1123         }
1124
1125         talloc_free(local_ctx);
1126
1127         ldapsrv_queue_reply(call, modifydn_r);
1128         return NT_STATUS_OK;
1129 }
1130
1131 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
1132 {
1133         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
1134         struct ldap_Result *compare;
1135         struct ldapsrv_reply *compare_r;
1136         TALLOC_CTX *local_ctx;
1137         struct ldb_context *samdb = call->conn->ldb;
1138         struct ldb_result *res = NULL;
1139         struct ldb_dn *dn;
1140         const char *attrs[1];
1141         const char *errstr = NULL;
1142         const char *filter = NULL;
1143         int result = LDAP_SUCCESS;
1144         int ldb_ret;
1145
1146         DEBUG(10, ("CompareRequest"));
1147         DEBUGADD(10, (" dn: %s\n", req->dn));
1148
1149         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
1150         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1151
1152         dn = ldb_dn_new(local_ctx, samdb, req->dn);
1153         NT_STATUS_HAVE_NO_MEMORY(dn);
1154
1155         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
1156         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
1157                                  (int)req->value.length, req->value.data);
1158         NT_STATUS_HAVE_NO_MEMORY(filter);
1159
1160         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
1161
1162         attrs[0] = NULL;
1163
1164         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
1165         NT_STATUS_HAVE_NO_MEMORY(compare_r);
1166
1167         if (result == LDAP_SUCCESS) {
1168                 ldb_ret = ldb_search(samdb, local_ctx, &res,
1169                                      dn, LDB_SCOPE_BASE, attrs, "%s", filter);
1170                 if (ldb_ret != LDB_SUCCESS) {
1171                         result = map_ldb_error(local_ctx, ldb_ret,
1172                                                ldb_errstring(samdb), &errstr);
1173                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
1174                 } else if (res->count == 0) {
1175                         DEBUG(10,("CompareRequest: doesn't matched\n"));
1176                         result = LDAP_COMPARE_FALSE;
1177                         errstr = NULL;
1178                 } else if (res->count == 1) {
1179                         DEBUG(10,("CompareRequest: matched\n"));
1180                         result = LDAP_COMPARE_TRUE;
1181                         errstr = NULL;
1182                 } else if (res->count > 1) {
1183                         result = LDAP_OTHER;
1184                         map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1185                         errstr = talloc_asprintf(local_ctx,
1186                                 "%s. Too many objects match!", errstr);
1187                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
1188                 }
1189         }
1190
1191         compare = &compare_r->msg->r.CompareResponse;
1192         compare->dn = NULL;
1193         compare->resultcode = result;
1194         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
1195         compare->referral = NULL;
1196
1197         talloc_free(local_ctx);
1198
1199         ldapsrv_queue_reply(call, compare_r);
1200         return NT_STATUS_OK;
1201 }
1202
1203 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
1204 {
1205         struct ldap_AbandonRequest *req = &call->request->r.AbandonRequest;
1206         struct ldapsrv_call *c = NULL;
1207         struct ldapsrv_call *n = NULL;
1208
1209         DEBUG(10, ("AbandonRequest\n"));
1210
1211         for (c = call->conn->pending_calls; c != NULL; c = n) {
1212                 n = c->next;
1213
1214                 if (c->request->messageid != req->messageid) {
1215                         continue;
1216                 }
1217
1218                 DLIST_REMOVE(call->conn->pending_calls, c);
1219                 TALLOC_FREE(c);
1220         }
1221
1222         return NT_STATUS_OK;
1223 }
1224
1225 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
1226 {
1227         unsigned int i;
1228         struct ldap_message *msg = call->request;
1229         NTSTATUS status;
1230
1231         /* Check for undecoded critical extensions */
1232         for (i=0; msg->controls && msg->controls[i]; i++) {
1233                 if (!msg->controls_decoded[i] &&
1234                     msg->controls[i]->critical) {
1235                         DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
1236                                   msg->controls[i]->oid));
1237                         return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
1238                 }
1239         }
1240
1241         switch(call->request->type) {
1242         case LDAP_TAG_BindRequest:
1243                 return ldapsrv_BindRequest(call);
1244         case LDAP_TAG_UnbindRequest:
1245                 return ldapsrv_UnbindRequest(call);
1246         case LDAP_TAG_SearchRequest:
1247                 return ldapsrv_SearchRequest(call);
1248         case LDAP_TAG_ModifyRequest:
1249                 status = ldapsrv_ModifyRequest(call);
1250                 break;
1251         case LDAP_TAG_AddRequest:
1252                 status = ldapsrv_AddRequest(call);
1253                 break;
1254         case LDAP_TAG_DelRequest:
1255                 status = ldapsrv_DelRequest(call);
1256                 break;
1257         case LDAP_TAG_ModifyDNRequest:
1258                 status = ldapsrv_ModifyDNRequest(call);
1259                 break;
1260         case LDAP_TAG_CompareRequest:
1261                 return ldapsrv_CompareRequest(call);
1262         case LDAP_TAG_AbandonRequest:
1263                 return ldapsrv_AbandonRequest(call);
1264         case LDAP_TAG_ExtendedRequest:
1265                 status = ldapsrv_ExtendedRequest(call);
1266                 break;
1267         default:
1268                 return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
1269         }
1270
1271         if (NT_STATUS_IS_OK(status)) {
1272                 ldapsrv_notification_retry_setup(call->conn->service, true);
1273         }
1274
1275         return status;
1276 }