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 "auth/common_auth.h"
  28 #include "param/param.h"
  29 #include "smbd/service_stream.h"
  30 #include "dsdb/samdb/samdb.h"
  31 #include <ldb_errors.h>
  32 #include <ldb_module.h>
  33 #include "ldb_wrap.h"
  34
  35 static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
  36         const char *add_err_string, const char **errstring)
  37 {
  38         WERROR err;
  39
  40         /* Certain LDB modules need to return very special WERROR codes. Proof
  41          * for them here and if they exist skip the rest of the mapping. */
  42         if (add_err_string != NULL) {
  43                 char *endptr;
  44                 strtol(add_err_string, &endptr, 16);
  45                 if (endptr != add_err_string) {
  46                         *errstring = add_err_string;
  47                         return ldb_err;
  48                 }
  49         }
  50
  51         /* Otherwise we calculate here a generic, but appropriate WERROR. */
  52
  53         switch (ldb_err) {
  54         case LDB_SUCCESS:
  55                 err = WERR_OK;
  56         break;
  57         case LDB_ERR_OPERATIONS_ERROR:
  58                 err = WERR_DS_OPERATIONS_ERROR;
  59         break;
  60         case LDB_ERR_PROTOCOL_ERROR:
  61                 err = WERR_DS_PROTOCOL_ERROR;
  62         break;
  63         case LDB_ERR_TIME_LIMIT_EXCEEDED:
  64                 err = WERR_DS_TIMELIMIT_EXCEEDED;
  65         break;
  66         case LDB_ERR_SIZE_LIMIT_EXCEEDED:
  67                 err = WERR_DS_SIZELIMIT_EXCEEDED;
  68         break;
  69         case LDB_ERR_COMPARE_FALSE:
  70                 err = WERR_DS_COMPARE_FALSE;
  71         break;
  72         case LDB_ERR_COMPARE_TRUE:
  73                 err = WERR_DS_COMPARE_TRUE;
  74         break;
  75         case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
  76                 err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
  77         break;
  78         case LDB_ERR_STRONG_AUTH_REQUIRED:
  79                 err = WERR_DS_STRONG_AUTH_REQUIRED;
  80         break;
  81         case LDB_ERR_REFERRAL:
  82                 err = WERR_DS_REFERRAL;
  83         break;
  84         case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
  85                 err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
  86         break;
  87         case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
  88                 err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
  89         break;
  90         case LDB_ERR_CONFIDENTIALITY_REQUIRED:
  91                 err = WERR_DS_CONFIDENTIALITY_REQUIRED;
  92         break;
  93         case LDB_ERR_SASL_BIND_IN_PROGRESS:
  94                 err = WERR_DS_BUSY;
  95         break;
  96         case LDB_ERR_NO_SUCH_ATTRIBUTE:
  97                 err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
  98         break;
  99         case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
 100                 err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
 101         break;
 102         case LDB_ERR_INAPPROPRIATE_MATCHING:
 103                 err = WERR_DS_INAPPROPRIATE_MATCHING;
 104         break;
 105         case LDB_ERR_CONSTRAINT_VIOLATION:
 106                 err = WERR_DS_CONSTRAINT_VIOLATION;
 107         break;
 108         case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
 109                 err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
 110         break;
 111         case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
 112                 err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
 113         break;
 114         case LDB_ERR_NO_SUCH_OBJECT:
 115                 err = WERR_DS_NO_SUCH_OBJECT;
 116         break;
 117         case LDB_ERR_ALIAS_PROBLEM:
 118                 err = WERR_DS_ALIAS_PROBLEM;
 119         break;
 120         case LDB_ERR_INVALID_DN_SYNTAX:
 121                 err = WERR_DS_INVALID_DN_SYNTAX;
 122         break;
 123         case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
 124                 err = WERR_DS_ALIAS_DEREF_PROBLEM;
 125         break;
 126         case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
 127                 err = WERR_DS_INAPPROPRIATE_AUTH;
 128         break;
 129         case LDB_ERR_INVALID_CREDENTIALS:
 130                 err = WERR_ACCESS_DENIED;
 131         break;
 132         case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
 133                 err = WERR_DS_INSUFF_ACCESS_RIGHTS;
 134         break;
 135         case LDB_ERR_BUSY:
 136                 err = WERR_DS_BUSY;
 137         break;
 138         case LDB_ERR_UNAVAILABLE:
 139                 err = WERR_DS_UNAVAILABLE;
 140         break;
 141         case LDB_ERR_UNWILLING_TO_PERFORM:
 142                 err = WERR_DS_UNWILLING_TO_PERFORM;
 143         break;
 144         case LDB_ERR_LOOP_DETECT:
 145                 err = WERR_DS_LOOP_DETECT;
 146         break;
 147         case LDB_ERR_NAMING_VIOLATION:
 148                 err = WERR_DS_NAMING_VIOLATION;
 149         break;
 150         case LDB_ERR_OBJECT_CLASS_VIOLATION:
 151                 err = WERR_DS_OBJ_CLASS_VIOLATION;
 152         break;
 153         case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
 154                 err = WERR_DS_CANT_ON_NON_LEAF;
 155         break;
 156         case LDB_ERR_NOT_ALLOWED_ON_RDN:
 157                 err = WERR_DS_CANT_ON_RDN;
 158         break;
 159         case LDB_ERR_ENTRY_ALREADY_EXISTS:
 160                 err = WERR_DS_OBJ_STRING_NAME_EXISTS;
 161         break;
 162         case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
 163                 err = WERR_DS_CANT_MOD_OBJ_CLASS;
 164         break;
 165         case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
 166                 err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
 167         break;
 168         default:
 169                 err = WERR_DS_GENERIC_ERROR;
 170         break;
 171         }
 172
 173         *errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
 174                 add_err_string != NULL ? add_err_string : ldb_strerror(ldb_err));
 175
 176         /* result is 1:1 for now */
 177         return ldb_err;
 178 }
 179
 180 /*
 181   connect to the sam database
 182 */
 183 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
 184 {
 185         conn->ldb = samdb_connect(conn,
 186                                      conn->connection->event.ctx,
 187                                      conn->lp_ctx,
 188                                      conn->session_info,
 189                                      conn->global_catalog ? LDB_FLG_RDONLY : 0);
 190         if (conn->ldb == NULL) {
 191                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
 192         }
 193
 194         if (conn->server_credentials) {
 195                 char **sasl_mechs = NULL;
 196                 const struct gensec_security_ops * const *backends = gensec_security_all();
 197                 const struct gensec_security_ops **ops
 198                         = gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
 199                 unsigned int i, j = 0;
 200                 for (i = 0; ops && ops[i]; i++) {
 201                         if (!lpcfg_parm_bool(conn->lp_ctx,  NULL, "gensec", ops[i]->name, ops[i]->enabled))
 202                                 continue;
 203
 204                         if (ops[i]->sasl_name && ops[i]->server_start) {
 205                                 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
 206
 207                                 if (!sasl_name) {
 208                                         return NT_STATUS_NO_MEMORY;
 209                                 }
 210                                 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
 211                                 if (!sasl_mechs) {
 212                                         return NT_STATUS_NO_MEMORY;
 213                                 }
 214                                 sasl_mechs[j] = sasl_name;
 215                                 talloc_steal(sasl_mechs, sasl_name);
 216                                 sasl_mechs[j+1] = NULL;
 217                                 j++;
 218                         }
 219                 }
 220                 talloc_unlink(conn, ops);
 221
 222                 /* ldb can have a different lifetime to conn, so we
 223                    need to ensure that sasl_mechs lives as long as the
 224                    ldb does */
 225                 talloc_steal(conn->ldb, sasl_mechs);
 226
 227                 ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
 228         }
 229
 230         ldb_set_opaque(conn->ldb, "remoteAddress",
 231                        conn->connection->remote_address);
 232
 233         return NT_STATUS_OK;
 234 }
 235
 236 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
 237 {
 238         struct ldapsrv_reply *reply;
 239
 240         reply = talloc(call, struct ldapsrv_reply);
 241         if (!reply) {
 242                 return NULL;
 243         }
 244         reply->msg = talloc(reply, struct ldap_message);
 245         if (reply->msg == NULL) {
 246                 talloc_free(reply);
 247                 return NULL;
 248         }
 249
 250         reply->msg->messageid = call->request->messageid;
 251         reply->msg->type = type;
 252         reply->msg->controls = NULL;
 253
 254         return reply;
 255 }
 256
 257 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
 258 {
 259         DLIST_ADD_END(call->replies, reply);
 260 }
 261
 262 static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
 263 {
 264         struct ldapsrv_reply *reply;
 265         struct ldap_ExtendedResponse *r;
 266
 267         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
 268
 269         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 270         if (!reply) {
 271                 return NT_STATUS_NO_MEMORY;
 272         }
 273
 274         r = &reply->msg->r.ExtendedResponse;
 275         r->response.resultcode = error;
 276         r->response.dn = NULL;
 277         r->response.errormessage = NULL;
 278         r->response.referral = NULL;
 279         r->oid = NULL;
 280         r->value = NULL;
 281
 282         ldapsrv_queue_reply(call, reply);
 283         return NT_STATUS_OK;
 284 }
 285
 286 static int ldapsrv_add_with_controls(struct ldapsrv_call *call,
 287                                      const struct ldb_message *message,
 288                                      struct ldb_control **controls,
 289                                      struct ldb_result *res)
 290 {
 291         struct ldb_context *ldb = call->conn->ldb;
 292         struct ldb_request *req;
 293         int ret;
 294
 295         ret = ldb_msg_sanity_check(ldb, message);
 296         if (ret != LDB_SUCCESS) {
 297                 return ret;
 298         }
 299
 300         ret = ldb_build_add_req(&req, ldb, ldb,
 301                                         message,
 302                                         controls,
 303                                         res,
 304                                         ldb_modify_default_callback,
 305                                         NULL);
 306
 307         if (ret != LDB_SUCCESS) return ret;
 308
 309         if (call->conn->global_catalog) {
 310                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 311         }
 312         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 313
 314         ret = ldb_transaction_start(ldb);
 315         if (ret != LDB_SUCCESS) {
 316                 return ret;
 317         }
 318
 319         if (!call->conn->is_privileged) {
 320                 ldb_req_mark_untrusted(req);
 321         }
 322
 323         LDB_REQ_SET_LOCATION(req);
 324
 325         ret = ldb_request(ldb, req);
 326         if (ret == LDB_SUCCESS) {
 327                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 328         }
 329
 330         if (ret == LDB_SUCCESS) {
 331                 ret = ldb_transaction_commit(ldb);
 332         }
 333         else {
 334                 ldb_transaction_cancel(ldb);
 335         }
 336
 337         talloc_free(req);
 338         return ret;
 339 }
 340
 341 /* create and execute a modify request */
 342 static int ldapsrv_mod_with_controls(struct ldapsrv_call *call,
 343                                      const struct ldb_message *message,
 344                                      struct ldb_control **controls,
 345                                      struct ldb_result *res)
 346 {
 347         struct ldb_context *ldb = call->conn->ldb;
 348         struct ldb_request *req;
 349         int ret;
 350
 351         ret = ldb_msg_sanity_check(ldb, message);
 352         if (ret != LDB_SUCCESS) {
 353                 return ret;
 354         }
 355
 356         ret = ldb_build_mod_req(&req, ldb, ldb,
 357                                         message,
 358                                         controls,
 359                                         res,
 360                                         ldb_modify_default_callback,
 361                                         NULL);
 362
 363         if (ret != LDB_SUCCESS) {
 364                 return ret;
 365         }
 366
 367         if (call->conn->global_catalog) {
 368                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 369         }
 370         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 371
 372         ret = ldb_transaction_start(ldb);
 373         if (ret != LDB_SUCCESS) {
 374                 return ret;
 375         }
 376
 377         if (!call->conn->is_privileged) {
 378                 ldb_req_mark_untrusted(req);
 379         }
 380
 381         LDB_REQ_SET_LOCATION(req);
 382
 383         ret = ldb_request(ldb, req);
 384         if (ret == LDB_SUCCESS) {
 385                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 386         }
 387
 388         if (ret == LDB_SUCCESS) {
 389                 ret = ldb_transaction_commit(ldb);
 390         }
 391         else {
 392                 ldb_transaction_cancel(ldb);
 393         }
 394
 395         talloc_free(req);
 396         return ret;
 397 }
 398
 399 /* create and execute a delete request */
 400 static int ldapsrv_del_with_controls(struct ldapsrv_call *call,
 401                                      struct ldb_dn *dn,
 402                                      struct ldb_control **controls,
 403                                      struct ldb_result *res)
 404 {
 405         struct ldb_context *ldb = call->conn->ldb;
 406         struct ldb_request *req;
 407         int ret;
 408
 409         ret = ldb_build_del_req(&req, ldb, ldb,
 410                                         dn,
 411                                         controls,
 412                                         res,
 413                                         ldb_modify_default_callback,
 414                                         NULL);
 415
 416         if (ret != LDB_SUCCESS) return ret;
 417
 418         if (call->conn->global_catalog) {
 419                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 420         }
 421         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 422
 423         ret = ldb_transaction_start(ldb);
 424         if (ret != LDB_SUCCESS) {
 425                 return ret;
 426         }
 427
 428         if (!call->conn->is_privileged) {
 429                 ldb_req_mark_untrusted(req);
 430         }
 431
 432         LDB_REQ_SET_LOCATION(req);
 433
 434         ret = ldb_request(ldb, req);
 435         if (ret == LDB_SUCCESS) {
 436                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 437         }
 438
 439         if (ret == LDB_SUCCESS) {
 440                 ret = ldb_transaction_commit(ldb);
 441         }
 442         else {
 443                 ldb_transaction_cancel(ldb);
 444         }
 445
 446         talloc_free(req);
 447         return ret;
 448 }
 449
 450 static int ldapsrv_rename_with_controls(struct ldapsrv_call *call,
 451                                         struct ldb_dn *olddn,
 452                                         struct ldb_dn *newdn,
 453                                         struct ldb_control **controls,
 454                                         struct ldb_result *res)
 455 {
 456         struct ldb_context *ldb = call->conn->ldb;
 457         struct ldb_request *req;
 458         int ret;
 459
 460         ret = ldb_build_rename_req(&req, ldb, ldb,
 461                                         olddn,
 462                                         newdn,
 463                                         controls,
 464                                         res,
 465                                         ldb_modify_default_callback,
 466                                         NULL);
 467
 468         if (ret != LDB_SUCCESS) return ret;
 469
 470         if (call->conn->global_catalog) {
 471                 return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
 472         }
 473         ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 474
 475         ret = ldb_transaction_start(ldb);
 476         if (ret != LDB_SUCCESS) {
 477                 return ret;
 478         }
 479
 480         if (!call->conn->is_privileged) {
 481                 ldb_req_mark_untrusted(req);
 482         }
 483
 484         LDB_REQ_SET_LOCATION(req);
 485
 486         ret = ldb_request(ldb, req);
 487         if (ret == LDB_SUCCESS) {
 488                 ret = ldb_wait(req->handle, LDB_WAIT_ALL);
 489         }
 490
 491         if (ret == LDB_SUCCESS) {
 492                 ret = ldb_transaction_commit(ldb);
 493         }
 494         else {
 495                 ldb_transaction_cancel(ldb);
 496         }
 497
 498         talloc_free(req);
 499         return ret;
 500 }
 501
 502 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 503 {
 504         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 505         struct ldap_SearchResEntry *ent;
 506         struct ldap_Result *done;
 507         struct ldapsrv_reply *ent_r, *done_r;
 508         TALLOC_CTX *local_ctx;
 509         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 510         struct ldb_dn *basedn;
 511         struct ldb_result *res = NULL;
 512         struct ldb_request *lreq;
 513         struct ldb_control *search_control;
 514         struct ldb_search_options_control *search_options;
 515         struct ldb_control *extended_dn_control;
 516         struct ldb_extended_dn_control *extended_dn_decoded = NULL;
 517         struct ldb_control *notification_control = NULL;
 518         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 519         const char **attrs = NULL;
 520         const char *scope_str, *errstr = NULL;
 521         int success_limit = 1;
 522         int result = -1;
 523         int ldb_ret = -1;
 524         unsigned int i, j;
 525         int extended_type = 1;
 526
 527         DEBUG(10, ("SearchRequest"));
 528         DEBUGADD(10, (" basedn: %s", req->basedn));
 529         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 530
 531         local_ctx = talloc_new(call);
 532         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 533
 534         basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
 535         NT_STATUS_HAVE_NO_MEMORY(basedn);
 536
 537         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 538         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 539
 540         switch (req->scope) {
 541                 case LDAP_SEARCH_SCOPE_BASE:
 542                         scope_str = "BASE";
 543                         scope = LDB_SCOPE_BASE;
 544                         success_limit = 0;
 545                         break;
 546                 case LDAP_SEARCH_SCOPE_SINGLE:
 547                         scope_str = "ONE";
 548                         scope = LDB_SCOPE_ONELEVEL;
 549                         success_limit = 0;
 550                         break;
 551                 case LDAP_SEARCH_SCOPE_SUB:
 552                         scope_str = "SUB";
 553                         scope = LDB_SCOPE_SUBTREE;
 554                         success_limit = 0;
 555                         break;
 556                 default:
 557                         result = LDAP_PROTOCOL_ERROR;
 558                         map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
 559                                 &errstr);
 560                         errstr = talloc_asprintf(local_ctx,
 561                                 "%s. Invalid scope", errstr);
 562                         goto reply;
 563         }
 564         DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
 565
 566         if (req->num_attributes >= 1) {
 567                 attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
 568                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 569
 570                 for (i=0; i < req->num_attributes; i++) {
 571                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 572                         attrs[i] = req->attributes[i];
 573                 }
 574                 attrs[i] = NULL;
 575         }
 576
 577         DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
 578                  scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
 579
 580         res = talloc_zero(local_ctx, struct ldb_result);
 581         NT_STATUS_HAVE_NO_MEMORY(res);
 582
 583         ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
 584                                           basedn, scope,
 585                                           req->tree, attrs,
 586                                           call->request->controls,
 587                                           res, ldb_search_default_callback,
 588                                           NULL);
 589
 590         if (ldb_ret != LDB_SUCCESS) {
 591                 goto reply;
 592         }
 593
 594         if (call->conn->global_catalog) {
 595                 search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
 596
 597                 search_options = NULL;
 598                 if (search_control) {
 599                         search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
 600                         search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
 601                 } else {
 602                         search_options = talloc(lreq, struct ldb_search_options_control);
 603                         NT_STATUS_HAVE_NO_MEMORY(search_options);
 604                         search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
 605                         ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
 606                 }
 607         } else {
 608                 ldb_request_add_control(lreq, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
 609         }
 610
 611         extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
 612
 613         if (extended_dn_control) {
 614                 if (extended_dn_control->data) {
 615                         extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
 616                         extended_type = extended_dn_decoded->type;
 617                 } else {
 618                         extended_type = 0;
 619                 }
 620         }
 621
 622         notification_control = ldb_request_get_control(lreq, LDB_CONTROL_NOTIFICATION_OID);
 623         if (notification_control != NULL) {
 624                 const struct ldapsrv_call *pc = NULL;
 625                 size_t count = 0;
 626
 627                 for (pc = call->conn->pending_calls; pc != NULL; pc = pc->next) {
 628                         count += 1;
 629                 }
 630
 631                 if (count >= call->conn->limits.max_notifications) {
 632                         DEBUG(10,("SearchRequest: error MaxNotificationPerConn\n"));
 633                         result = map_ldb_error(local_ctx,
 634                                                LDB_ERR_ADMIN_LIMIT_EXCEEDED,
 635                                                "MaxNotificationPerConn reached",
 636                                                &errstr);
 637                         goto reply;
 638                 }
 639
 640                 /*
 641                  * For now we need to do periodic retries on our own.
 642                  * As the dsdb_notification module will return after each run.
 643                  */
 644                 call->notification.busy = true;
 645         }
 646
 647         ldb_set_timeout(samdb, lreq, req->timelimit);
 648
 649         if (!call->conn->is_privileged) {
 650                 ldb_req_mark_untrusted(lreq);
 651         }
 652
 653         LDB_REQ_SET_LOCATION(lreq);
 654
 655         ldb_ret = ldb_request(samdb, lreq);
 656
 657         if (ldb_ret != LDB_SUCCESS) {
 658                 goto reply;
 659         }
 660
 661         ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
 662
 663         if (ldb_ret == LDB_SUCCESS) {
 664                 for (i = 0; i < res->count; i++) {
 665                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 666                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 667
 668                         /* Better to have the whole message kept here,
 669                          * than to find someone further up didn't put
 670                          * a value in the right spot in the talloc tree */
 671                         talloc_steal(ent_r, res->msgs[i]);
 672
 673                         ent = &ent_r->msg->r.SearchResultEntry;
 674                         ent->dn = ldb_dn_get_extended_linearized(ent_r, res->msgs[i]->dn, extended_type);
 675                         ent->num_attributes = 0;
 676                         ent->attributes = NULL;
 677                         if (res->msgs[i]->num_elements == 0) {
 678                                 goto queue_reply;
 679                         }
 680                         ent->num_attributes = res->msgs[i]->num_elements;
 681                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 682                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 683                         for (j=0; j < ent->num_attributes; j++) {
 684                                 ent->attributes[j].name = res->msgs[i]->elements[j].name;
 685                                 ent->attributes[j].num_values = 0;
 686                                 ent->attributes[j].values = NULL;
 687                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 688                                         continue;
 689                                 }
 690                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 691                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 692                         }
 693 queue_reply:
 694                         ldapsrv_queue_reply(call, ent_r);
 695                 }
 696
 697                 if (call->notification.busy) {
 698                         /* Move/Add it to the end */
 699                         DLIST_DEMOTE(call->conn->pending_calls, call);
 700                         call->notification.generation =
 701                                 call->conn->service->notification.generation;
 702
 703                         if (res->count != 0) {
 704                                 call->notification.generation += 1;
 705                                 ldapsrv_notification_retry_setup(call->conn->service,
 706                                                                  true);
 707                         }
 708
 709                         talloc_free(local_ctx);
 710                         return NT_STATUS_OK;
 711                 }
 712
 713                 /* Send back referrals if they do exist (search operations) */
 714                 if (res->refs != NULL) {
 715                         char **ref;
 716                         struct ldap_SearchResRef *ent_ref;
 717
 718                         for (ref = res->refs; *ref != NULL; ++ref) {
 719                                 ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
 720                                 NT_STATUS_HAVE_NO_MEMORY(ent_r);
 721
 722                                 /* Better to have the whole referrals kept here,
 723                                  * than to find someone further up didn't put
 724                                  * a value in the right spot in the talloc tree
 725                                  */
 726                                 talloc_steal(ent_r, *ref);
 727
 728                                 ent_ref = &ent_r->msg->r.SearchResultReference;
 729                                 ent_ref->referral = *ref;
 730
 731                                 ldapsrv_queue_reply(call, ent_r);
 732                         }
 733                 }
 734         }
 735
 736 reply:
 737         DLIST_REMOVE(call->conn->pending_calls, call);
 738         call->notification.busy = false;
 739
 740         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 741         NT_STATUS_HAVE_NO_MEMORY(done_r);
 742
 743         done = &done_r->msg->r.SearchResultDone;
 744         done->dn = NULL;
 745         done->referral = NULL;
 746
 747         if (result != -1) {
 748         } else if (ldb_ret == LDB_SUCCESS) {
 749                 if (res->count >= success_limit) {
 750                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 751                         result = LDAP_SUCCESS;
 752                         errstr = NULL;
 753                 }
 754                 if (res->controls) {
 755                         done_r->msg->controls = res->controls;
 756                         talloc_steal(done_r, res->controls);
 757                 }
 758         } else {
 759                 DEBUG(10,("SearchRequest: error\n"));
 760                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
 761                                        &errstr);
 762         }
 763
 764         done->resultcode = result;
 765         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 766
 767         talloc_free(local_ctx);
 768
 769         ldapsrv_queue_reply(call, done_r);
 770         return NT_STATUS_OK;
 771 }
 772
 773 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 774 {
 775         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 776         struct ldap_Result *modify_result;
 777         struct ldapsrv_reply *modify_reply;
 778         TALLOC_CTX *local_ctx;
 779         struct ldb_context *samdb = call->conn->ldb;
 780         struct ldb_message *msg = NULL;
 781         struct ldb_dn *dn;
 782         const char *errstr = NULL;
 783         int result = LDAP_SUCCESS;
 784         int ldb_ret;
 785         unsigned int i,j;
 786         struct ldb_result *res = NULL;
 787
 788         DEBUG(10, ("ModifyRequest"));
 789         DEBUGADD(10, (" dn: %s\n", req->dn));
 790
 791         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 792         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 793
 794         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 795         NT_STATUS_HAVE_NO_MEMORY(dn);
 796
 797         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 798
 799         msg = talloc(local_ctx, struct ldb_message);
 800         NT_STATUS_HAVE_NO_MEMORY(msg);
 801
 802         msg->dn = dn;
 803         msg->num_elements = 0;
 804         msg->elements = NULL;
 805
 806         if (req->num_mods > 0) {
 807                 msg->num_elements = req->num_mods;
 808                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 809                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 810
 811                 for (i=0; i < msg->num_elements; i++) {
 812                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 813                         msg->elements[i].num_values = 0;
 814                         msg->elements[i].values = NULL;
 815
 816                         switch (req->mods[i].type) {
 817                         default:
 818                                 result = LDAP_PROTOCOL_ERROR;
 819                                 map_ldb_error(local_ctx,
 820                                         LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
 821                                 errstr = talloc_asprintf(local_ctx,
 822                                         "%s. Invalid LDAP_MODIFY_* type", errstr);
 823                                 goto reply;
 824                         case LDAP_MODIFY_ADD:
 825                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 826                                 break;
 827                         case LDAP_MODIFY_DELETE:
 828                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 829                                 break;
 830                         case LDAP_MODIFY_REPLACE:
 831                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 832                                 break;
 833                         }
 834
 835                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 836                         if (msg->elements[i].num_values > 0) {
 837                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 838                                                                        msg->elements[i].num_values);
 839                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 840
 841                                 for (j=0; j < msg->elements[i].num_values; j++) {
 842                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 843                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 844                                 }
 845                         }
 846                 }
 847         }
 848
 849 reply:
 850         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 851         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 852
 853         if (result == LDAP_SUCCESS) {
 854                 res = talloc_zero(local_ctx, struct ldb_result);
 855                 NT_STATUS_HAVE_NO_MEMORY(res);
 856                 ldb_ret = ldapsrv_mod_with_controls(call, msg, call->request->controls, res);
 857                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
 858                                        &errstr);
 859         }
 860
 861         modify_result = &modify_reply->msg->r.ModifyResponse;
 862         modify_result->dn = NULL;
 863         if ((res != NULL) && (res->refs != NULL)) {
 864                 modify_result->resultcode = map_ldb_error(local_ctx,
 865                                                           LDB_ERR_REFERRAL,
 866                                                           NULL, &errstr);
 867                 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 868                 modify_result->referral = talloc_strdup(call, *res->refs);
 869         } else {
 870                 modify_result->resultcode = result;
 871                 modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 872                 modify_result->referral = NULL;
 873         }
 874         talloc_free(local_ctx);
 875
 876         ldapsrv_queue_reply(call, modify_reply);
 877         return NT_STATUS_OK;
 878
 879 }
 880
 881 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 882 {
 883         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 884         struct ldap_Result *add_result;
 885         struct ldapsrv_reply *add_reply;
 886         TALLOC_CTX *local_ctx;
 887         struct ldb_context *samdb = call->conn->ldb;
 888         struct ldb_message *msg = NULL;
 889         struct ldb_dn *dn;
 890         const char *errstr = NULL;
 891         int result = LDAP_SUCCESS;
 892         int ldb_ret;
 893         unsigned int i,j;
 894         struct ldb_result *res = NULL;
 895
 896         DEBUG(10, ("AddRequest"));
 897         DEBUGADD(10, (" dn: %s\n", req->dn));
 898
 899         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 900         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 901
 902         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 903         NT_STATUS_HAVE_NO_MEMORY(dn);
 904
 905         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 906
 907         msg = talloc(local_ctx, struct ldb_message);
 908         NT_STATUS_HAVE_NO_MEMORY(msg);
 909
 910         msg->dn = dn;
 911         msg->num_elements = 0;
 912         msg->elements = NULL;
 913
 914         if (req->num_attributes > 0) {
 915                 msg->num_elements = req->num_attributes;
 916                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 917                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 918
 919                 for (i=0; i < msg->num_elements; i++) {
 920                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 921                         msg->elements[i].flags = 0;
 922                         msg->elements[i].num_values = 0;
 923                         msg->elements[i].values = NULL;
 924
 925                         if (req->attributes[i].num_values > 0) {
 926                                 msg->elements[i].num_values = req->attributes[i].num_values;
 927                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 928                                                                        msg->elements[i].num_values);
 929                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 930
 931                                 for (j=0; j < msg->elements[i].num_values; j++) {
 932                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 933                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 934                                 }
 935                         }
 936                 }
 937         }
 938
 939         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 940         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 941
 942         if (result == LDAP_SUCCESS) {
 943                 res = talloc_zero(local_ctx, struct ldb_result);
 944                 NT_STATUS_HAVE_NO_MEMORY(res);
 945                 ldb_ret = ldapsrv_add_with_controls(call, msg, call->request->controls, res);
 946                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
 947                                        &errstr);
 948         }
 949
 950         add_result = &add_reply->msg->r.AddResponse;
 951         add_result->dn = NULL;
 952         if ((res != NULL) && (res->refs != NULL)) {
 953                 add_result->resultcode =  map_ldb_error(local_ctx,
 954                                                         LDB_ERR_REFERRAL, NULL,
 955                                                         &errstr);
 956                 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 957                 add_result->referral = talloc_strdup(call, *res->refs);
 958         } else {
 959                 add_result->resultcode = result;
 960                 add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 961                 add_result->referral = NULL;
 962         }
 963         talloc_free(local_ctx);
 964
 965         ldapsrv_queue_reply(call, add_reply);
 966         return NT_STATUS_OK;
 967
 968 }
 969
 970 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 971 {
 972         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 973         struct ldap_Result *del_result;
 974         struct ldapsrv_reply *del_reply;
 975         TALLOC_CTX *local_ctx;
 976         struct ldb_context *samdb = call->conn->ldb;
 977         struct ldb_dn *dn;
 978         const char *errstr = NULL;
 979         int result = LDAP_SUCCESS;
 980         int ldb_ret;
 981         struct ldb_result *res = NULL;
 982
 983         DEBUG(10, ("DelRequest"));
 984         DEBUGADD(10, (" dn: %s\n", req->dn));
 985
 986         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 987         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 988
 989         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 990         NT_STATUS_HAVE_NO_MEMORY(dn);
 991
 992         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 993
 994         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 995         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 996
 997         if (result == LDAP_SUCCESS) {
 998                 res = talloc_zero(local_ctx, struct ldb_result);
 999                 NT_STATUS_HAVE_NO_MEMORY(res);
1000                 ldb_ret = ldapsrv_del_with_controls(call, dn, call->request->controls, res);
1001                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1002                                        &errstr);
1003         }
1004
1005         del_result = &del_reply->msg->r.DelResponse;
1006         del_result->dn = NULL;
1007         if ((res != NULL) && (res->refs != NULL)) {
1008                 del_result->resultcode = map_ldb_error(local_ctx,
1009                                                        LDB_ERR_REFERRAL, NULL,
1010                                                        &errstr);
1011                 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
1012                 del_result->referral = talloc_strdup(call, *res->refs);
1013         } else {
1014                 del_result->resultcode = result;
1015                 del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
1016                 del_result->referral = NULL;
1017         }
1018
1019         talloc_free(local_ctx);
1020
1021         ldapsrv_queue_reply(call, del_reply);
1022         return NT_STATUS_OK;
1023 }
1024
1025 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
1026 {
1027         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
1028         struct ldap_Result *modifydn;
1029         struct ldapsrv_reply *modifydn_r;
1030         TALLOC_CTX *local_ctx;
1031         struct ldb_context *samdb = call->conn->ldb;
1032         struct ldb_dn *olddn, *newdn=NULL, *newrdn;
1033         struct ldb_dn *parentdn = NULL;
1034         const char *errstr = NULL;
1035         int result = LDAP_SUCCESS;
1036         int ldb_ret;
1037         struct ldb_result *res = NULL;
1038
1039         DEBUG(10, ("ModifyDNRequest"));
1040         DEBUGADD(10, (" dn: %s", req->dn));
1041         DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
1042
1043         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
1044         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1045
1046         olddn = ldb_dn_new(local_ctx, samdb, req->dn);
1047         NT_STATUS_HAVE_NO_MEMORY(olddn);
1048
1049         newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
1050         NT_STATUS_HAVE_NO_MEMORY(newrdn);
1051
1052         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
1053         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
1054
1055         if (ldb_dn_get_comp_num(newrdn) == 0) {
1056                 result = LDAP_PROTOCOL_ERROR;
1057                 map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
1058                               &errstr);
1059                 goto reply;
1060         }
1061
1062         if (ldb_dn_get_comp_num(newrdn) > 1) {
1063                 result = LDAP_NAMING_VIOLATION;
1064                 map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
1065                               &errstr);
1066                 goto reply;
1067         }
1068
1069         /* we can't handle the rename if we should not remove the old dn */
1070         if (!req->deleteolddn) {
1071                 result = LDAP_UNWILLING_TO_PERFORM;
1072                 map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
1073                               &errstr);
1074                 errstr = talloc_asprintf(local_ctx,
1075                         "%s. Old RDN must be deleted", errstr);
1076                 goto reply;
1077         }
1078
1079         if (req->newsuperior) {
1080                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
1081                 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
1082         }
1083
1084         if (!parentdn) {
1085                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
1086         }
1087         if (!parentdn) {
1088                 result = LDAP_NO_SUCH_OBJECT;
1089                 map_ldb_error(local_ctx, LDB_ERR_NO_SUCH_OBJECT, NULL, &errstr);
1090                 goto reply;
1091         }
1092
1093         if ( ! ldb_dn_add_child(parentdn, newrdn)) {
1094                 result = LDAP_OTHER;
1095                 map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1096                 goto reply;
1097         }
1098         newdn = parentdn;
1099
1100 reply:
1101         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
1102         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
1103
1104         if (result == LDAP_SUCCESS) {
1105                 res = talloc_zero(local_ctx, struct ldb_result);
1106                 NT_STATUS_HAVE_NO_MEMORY(res);
1107                 ldb_ret = ldapsrv_rename_with_controls(call, olddn, newdn, call->request->controls, res);
1108                 result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
1109                                        &errstr);
1110         }
1111
1112         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
1113         modifydn->dn = NULL;
1114         if ((res != NULL) && (res->refs != NULL)) {
1115                 modifydn->resultcode = map_ldb_error(local_ctx,
1116                                                      LDB_ERR_REFERRAL, NULL,
1117                                                      &errstr);;
1118                 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1119                 modifydn->referral = talloc_strdup(call, *res->refs);
1120         } else {
1121                 modifydn->resultcode = result;
1122                 modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
1123                 modifydn->referral = NULL;
1124         }
1125
1126         talloc_free(local_ctx);
1127
1128         ldapsrv_queue_reply(call, modifydn_r);
1129         return NT_STATUS_OK;
1130 }
1131
1132 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
1133 {
1134         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
1135         struct ldap_Result *compare;
1136         struct ldapsrv_reply *compare_r;
1137         TALLOC_CTX *local_ctx;
1138         struct ldb_context *samdb = call->conn->ldb;
1139         struct ldb_result *res = NULL;
1140         struct ldb_dn *dn;
1141         const char *attrs[1];
1142         const char *errstr = NULL;
1143         const char *filter = NULL;
1144         int result = LDAP_SUCCESS;
1145         int ldb_ret;
1146
1147         DEBUG(10, ("CompareRequest"));
1148         DEBUGADD(10, (" dn: %s\n", req->dn));
1149
1150         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
1151         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
1152
1153         dn = ldb_dn_new(local_ctx, samdb, req->dn);
1154         NT_STATUS_HAVE_NO_MEMORY(dn);
1155
1156         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
1157         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
1158                                  (int)req->value.length, req->value.data);
1159         NT_STATUS_HAVE_NO_MEMORY(filter);
1160
1161         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
1162
1163         attrs[0] = NULL;
1164
1165         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
1166         NT_STATUS_HAVE_NO_MEMORY(compare_r);
1167
1168         if (result == LDAP_SUCCESS) {
1169                 ldb_ret = ldb_search(samdb, local_ctx, &res,
1170                                      dn, LDB_SCOPE_BASE, attrs, "%s", filter);
1171                 if (ldb_ret != LDB_SUCCESS) {
1172                         result = map_ldb_error(local_ctx, ldb_ret,
1173                                                ldb_errstring(samdb), &errstr);
1174                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
1175                 } else if (res->count == 0) {
1176                         DEBUG(10,("CompareRequest: doesn't matched\n"));
1177                         result = LDAP_COMPARE_FALSE;
1178                         errstr = NULL;
1179                 } else if (res->count == 1) {
1180                         DEBUG(10,("CompareRequest: matched\n"));
1181                         result = LDAP_COMPARE_TRUE;
1182                         errstr = NULL;
1183                 } else if (res->count > 1) {
1184                         result = LDAP_OTHER;
1185                         map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
1186                         errstr = talloc_asprintf(local_ctx,
1187                                 "%s. Too many objects match!", errstr);
1188                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
1189                 }
1190         }
1191
1192         compare = &compare_r->msg->r.CompareResponse;
1193         compare->dn = NULL;
1194         compare->resultcode = result;
1195         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
1196         compare->referral = NULL;
1197
1198         talloc_free(local_ctx);
1199
1200         ldapsrv_queue_reply(call, compare_r);
1201         return NT_STATUS_OK;
1202 }
1203
1204 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
1205 {
1206         struct ldap_AbandonRequest *req = &call->request->r.AbandonRequest;
1207         struct ldapsrv_call *c = NULL;
1208         struct ldapsrv_call *n = NULL;
1209
1210         DEBUG(10, ("AbandonRequest\n"));
1211
1212         for (c = call->conn->pending_calls; c != NULL; c = n) {
1213                 n = c->next;
1214
1215                 if (c->request->messageid != req->messageid) {
1216                         continue;
1217                 }
1218
1219                 DLIST_REMOVE(call->conn->pending_calls, c);
1220                 TALLOC_FREE(c);
1221         }
1222
1223         return NT_STATUS_OK;
1224 }
1225
1226 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
1227 {
1228         unsigned int i;
1229         struct ldap_message *msg = call->request;
1230         NTSTATUS status;
1231         bool log = true;
1232
1233         /* Check for undecoded critical extensions */
1234         for (i=0; msg->controls && msg->controls[i]; i++) {
1235                 if (!msg->controls_decoded[i] &&
1236                     msg->controls[i]->critical) {
1237                         DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
1238                                   msg->controls[i]->oid));
1239                         return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
1240                 }
1241         }
1242
1243         if (call->conn->authz_logged == false) {
1244
1245                 /*
1246                  * We do not want to log anonymous access if the query
1247                  * is just for the rootDSE, or it is a startTLS or a
1248                  * Bind.
1249                  *
1250                  * A rootDSE search could also be done over
1251                  * CLDAP anonymously for example, so these don't
1252                  * really count.
1253                  * Essentially we want to know about
1254                  * access beyond that normally done prior to a
1255                  * bind.
1256                  */
1257
1258                 switch(call->request->type) {
1259                 case LDAP_TAG_BindRequest:
1260                         log = false;
1261                         break;
1262                 case LDAP_TAG_ExtendedResponse: {
1263                         struct ldap_ExtendedRequest *req = &call->request->r.ExtendedRequest;
1264                         if (strcmp(req->oid, LDB_EXTENDED_START_TLS_OID) == 0) {
1265                                 log = false;
1266                         }
1267                         break;
1268                 }
1269                 case LDAP_TAG_SearchRequest: {
1270                         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
1271                         if (req->scope == LDAP_SEARCH_SCOPE_BASE) {
1272                                 if (req->basedn[0] == '\0') {
1273                                         log = false;
1274                                 }
1275                         }
1276                         break;
1277                 }
1278                 default:
1279                         break;
1280                 }
1281
1282                 if (log) {
1283                         log_successful_authz_event(call->conn->connection->remote_address,
1284                                                    call->conn->connection->local_address,
1285                                                    "LDAP",
1286                                                    "no bind",
1287                                                    call->conn->session_info);
1288
1289                         call->conn->authz_logged = true;
1290                 }
1291         }
1292
1293         switch(call->request->type) {
1294         case LDAP_TAG_BindRequest:
1295                 return ldapsrv_BindRequest(call);
1296         case LDAP_TAG_UnbindRequest:
1297                 return ldapsrv_UnbindRequest(call);
1298         case LDAP_TAG_SearchRequest:
1299                 return ldapsrv_SearchRequest(call);
1300         case LDAP_TAG_ModifyRequest:
1301                 status = ldapsrv_ModifyRequest(call);
1302                 break;
1303         case LDAP_TAG_AddRequest:
1304                 status = ldapsrv_AddRequest(call);
1305                 break;
1306         case LDAP_TAG_DelRequest:
1307                 status = ldapsrv_DelRequest(call);
1308                 break;
1309         case LDAP_TAG_ModifyDNRequest:
1310                 status = ldapsrv_ModifyDNRequest(call);
1311                 break;
1312         case LDAP_TAG_CompareRequest:
1313                 return ldapsrv_CompareRequest(call);
1314         case LDAP_TAG_AbandonRequest:
1315                 return ldapsrv_AbandonRequest(call);
1316         case LDAP_TAG_ExtendedRequest:
1317                 status = ldapsrv_ExtendedRequest(call);
1318                 break;
1319         default:
1320                 return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
1321         }
1322
1323         if (NT_STATUS_IS_OK(status)) {
1324                 ldapsrv_notification_retry_setup(call->conn->service, true);
1325         }
1326
1327         return status;
1328 }