source4/ldap_server/ldap_backend.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP server
   4    Copyright (C) Stefan Metzmacher 2004
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22 #include "ldap_server/ldap_server.h"
  23 #include "dlinklist.h"
  24 #include "libcli/ldap/ldap.h"
  25 #include "lib/ldb/include/ldb.h"
  26 #include "lib/ldb/include/ldb_errors.h"
  27 #include "dsdb/samdb/samdb.h"
  28
  29 #define VALID_DN_SYNTAX(dn,i) do {\
  30         if (!(dn)) {\
  31                 return NT_STATUS_NO_MEMORY;\
  32         } else if ((dn)->comp_num < (i)) {\
  33                 result = LDAP_INVALID_DN_SYNTAX;\
  34                 errstr = "Invalid DN (" #i " components needed for '" #dn "')";\
  35                 goto reply;\
  36         }\
  37 } while(0)
  38
  39 static int map_ldb_error(struct ldb_context *ldb, int err, const char **errstring)
  40 {
  41         *errstring = ldb_errstring(ldb);
  42
  43         /* its 1:1 for now */
  44         return err;
  45 }
  46
  47 /*
  48   connect to the sam database
  49 */
  50 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
  51 {
  52         conn->ldb = samdb_connect(conn, conn->session_info);
  53         if (conn->ldb == NULL) {
  54                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
  55         }
  56         ldb_set_opaque(conn->ldb, "server_credentials", conn->server_credentials);
  57
  58         return NT_STATUS_OK;
  59 }
  60
  61 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
  62 {
  63         struct ldapsrv_reply *reply;
  64
  65         reply = talloc(call, struct ldapsrv_reply);
  66         if (!reply) {
  67                 return NULL;
  68         }
  69         reply->msg = talloc(reply, struct ldap_message);
  70         if (reply->msg == NULL) {
  71                 talloc_free(reply);
  72                 return NULL;
  73         }
  74
  75         reply->msg->messageid = call->request->messageid;
  76         reply->msg->type = type;
  77         reply->msg->controls = NULL;
  78
  79         return reply;
  80 }
  81
  82 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
  83 {
  84         DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
  85 }
  86
  87 NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
  88 {
  89         struct ldapsrv_reply *reply;
  90         struct ldap_ExtendedResponse *r;
  91
  92         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
  93
  94         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
  95         if (!reply) {
  96                 return NT_STATUS_NO_MEMORY;
  97         }
  98
  99         r = &reply->msg->r.ExtendedResponse;
 100         r->response.resultcode = error;
 101         r->response.dn = NULL;
 102         r->response.errormessage = NULL;
 103         r->response.referral = NULL;
 104         r->oid = NULL;
 105         r->value = NULL;
 106
 107         ldapsrv_queue_reply(call, reply);
 108         return NT_STATUS_OK;
 109 }
 110
 111 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 112 {
 113         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 114         struct ldap_SearchResEntry *ent;
 115         struct ldap_Result *done;
 116         struct ldapsrv_reply *ent_r, *done_r;
 117         void *local_ctx;
 118         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 119         struct ldb_dn *basedn;
 120         struct ldb_result *res = NULL;
 121         struct ldb_request *lreq;
 122         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 123         const char **attrs = NULL;
 124         const char *errstr = NULL;
 125         int success_limit = 1;
 126         int result = LDAP_SUCCESS;
 127         int ldb_ret;
 128         int i, j;
 129
 130         DEBUG(10, ("SearchRequest"));
 131         DEBUGADD(10, (" basedn: %s", req->basedn));
 132         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 133
 134         local_ctx = talloc_new(call);
 135         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 136
 137         basedn = ldb_dn_explode(local_ctx, req->basedn);
 138         VALID_DN_SYNTAX(basedn, 0);
 139
 140         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 141         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 142
 143         switch (req->scope) {
 144                 case LDAP_SEARCH_SCOPE_BASE:
 145                         DEBUG(10,("SearchRequest: scope: [BASE]\n"));
 146                         scope = LDB_SCOPE_BASE;
 147                         success_limit = 0;
 148                         break;
 149                 case LDAP_SEARCH_SCOPE_SINGLE:
 150                         DEBUG(10,("SearchRequest: scope: [ONE]\n"));
 151                         scope = LDB_SCOPE_ONELEVEL;
 152                         success_limit = 0;
 153                         break;
 154                 case LDAP_SEARCH_SCOPE_SUB:
 155                         DEBUG(10,("SearchRequest: scope: [SUB]\n"));
 156                         scope = LDB_SCOPE_SUBTREE;
 157                         success_limit = 0;
 158                         break;
 159         }
 160
 161         if (req->num_attributes >= 1) {
 162                 attrs = talloc_array(samdb, const char *, req->num_attributes+1);
 163                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 164
 165                 for (i=0; i < req->num_attributes; i++) {
 166                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 167                         attrs[i] = req->attributes[i];
 168                 }
 169                 attrs[i] = NULL;
 170         }
 171
 172         DEBUG(5,("ldb_request dn=%s filter=%s\n",
 173                  req->basedn, ldb_filter_from_tree(call, req->tree)));
 174
 175         lreq = talloc(local_ctx, struct ldb_request);
 176         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 177
 178         lreq->operation = LDB_REQ_SEARCH;
 179         lreq->op.search.base = basedn;
 180         lreq->op.search.scope = scope;
 181         lreq->op.search.tree = req->tree;
 182         lreq->op.search.attrs = attrs;
 183
 184         lreq->controls = call->request->controls;
 185
 186         ldb_ret = ldb_request(samdb, lreq);
 187
 188         /* Ensure we don't keep the search results around for too long */
 189         res = talloc_steal(local_ctx, lreq->op.search.res);
 190
 191         if (ldb_ret == LDB_SUCCESS) {
 192                 for (i = 0; i < res->count; i++) {
 193                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 194                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 195
 196                         ent = &ent_r->msg->r.SearchResultEntry;
 197                         ent->dn = ldb_dn_linearize(ent_r, res->msgs[i]->dn);
 198                         ent->num_attributes = 0;
 199                         ent->attributes = NULL;
 200                         if (res->msgs[i]->num_elements == 0) {
 201                                 goto queue_reply;
 202                         }
 203                         ent->num_attributes = res->msgs[i]->num_elements;
 204                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 205                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 206                         for (j=0; j < ent->num_attributes; j++) {
 207                                 ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[i]->elements[j].name);
 208                                 ent->attributes[j].num_values = 0;
 209                                 ent->attributes[j].values = NULL;
 210                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 211                                         continue;
 212                                 }
 213                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 214                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 215                                 talloc_steal(ent->attributes, res->msgs[i]->elements[j].values);
 216                         }
 217 queue_reply:
 218                         ldapsrv_queue_reply(call, ent_r);
 219                 }
 220         }
 221
 222 reply:
 223         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 224         NT_STATUS_HAVE_NO_MEMORY(done_r);
 225
 226         done = &done_r->msg->r.SearchResultDone;
 227         done->dn = NULL;
 228         done->referral = NULL;
 229
 230         if (ldb_ret == LDB_SUCCESS) {
 231                 if (res->count >= success_limit) {
 232                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 233                         result = LDAP_SUCCESS;
 234                         errstr = NULL;
 235                 } else if (res->count == 0) {
 236                         DEBUG(10,("SearchRequest: no results\n"));
 237                         result = LDAP_NO_SUCH_OBJECT;
 238                         errstr = ldb_errstring(samdb);
 239                 }
 240                 if (res->controls) {
 241                         done_r->msg->controls = res->controls;
 242                         talloc_steal(done_r, res->controls);
 243                 }
 244         } else {
 245                 DEBUG(10,("SearchRequest: error\n"));
 246                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 247         }
 248
 249         done->resultcode = result;
 250         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 251
 252         talloc_free(local_ctx);
 253
 254         ldapsrv_queue_reply(call, done_r);
 255         return NT_STATUS_OK;
 256 }
 257
 258 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 259 {
 260         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 261         struct ldap_Result *modify_result;
 262         struct ldapsrv_reply *modify_reply;
 263         void *local_ctx;
 264         struct ldb_context *samdb = call->conn->ldb;
 265         struct ldb_message *msg = NULL;
 266         struct ldb_dn *dn;
 267         const char *errstr = NULL;
 268         int result = LDAP_SUCCESS;
 269         int ldb_ret;
 270         int i,j;
 271
 272         DEBUG(10, ("ModifyRequest"));
 273         DEBUGADD(10, (" dn: %s", req->dn));
 274
 275         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 276         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 277
 278         dn = ldb_dn_explode(local_ctx, req->dn);
 279         VALID_DN_SYNTAX(dn, 1);
 280
 281         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 282
 283         msg = talloc(local_ctx, struct ldb_message);
 284         NT_STATUS_HAVE_NO_MEMORY(msg);
 285
 286         msg->dn = dn;
 287         msg->private_data = NULL;
 288         msg->num_elements = 0;
 289         msg->elements = NULL;
 290
 291         if (req->num_mods > 0) {
 292                 msg->num_elements = req->num_mods;
 293                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 294                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 295
 296                 for (i=0; i < msg->num_elements; i++) {
 297                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 298                         msg->elements[i].num_values = 0;
 299                         msg->elements[i].values = NULL;
 300
 301                         switch (req->mods[i].type) {
 302                         default:
 303                                 result = LDAP_PROTOCOL_ERROR;
 304                                 errstr = "Invalid LDAP_MODIFY_* type";
 305                                 goto reply;
 306                         case LDAP_MODIFY_ADD:
 307                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 308                                 break;
 309                         case LDAP_MODIFY_DELETE:
 310                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 311                                 break;
 312                         case LDAP_MODIFY_REPLACE:
 313                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 314                                 break;
 315                         }
 316
 317                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 318                         if (msg->elements[i].num_values > 0) {
 319                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 320                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 321
 322                                 for (j=0; j < msg->elements[i].num_values; j++) {
 323                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 324                                                 result = LDAP_OTHER;
 325                                                 errstr = "Empty attribute values are not allowed";
 326                                                 goto reply;
 327                                         }
 328                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 329                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 330                                 }
 331                         }
 332                 }
 333         } else {
 334                 result = LDAP_OTHER;
 335                 errstr = "No mods are not allowed";
 336                 goto reply;
 337         }
 338
 339 reply:
 340         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 341         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 342
 343         if (result == LDAP_SUCCESS) {
 344                 ldb_ret = ldb_modify(samdb, msg);
 345                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 346         }
 347
 348         modify_result = &modify_reply->msg->r.AddResponse;
 349         modify_result->dn = NULL;
 350         modify_result->resultcode = result;
 351         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 352         modify_result->referral = NULL;
 353
 354         talloc_free(local_ctx);
 355
 356         ldapsrv_queue_reply(call, modify_reply);
 357         return NT_STATUS_OK;
 358
 359 }
 360
 361 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 362 {
 363         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 364         struct ldap_Result *add_result;
 365         struct ldapsrv_reply *add_reply;
 366         void *local_ctx;
 367         struct ldb_context *samdb = call->conn->ldb;
 368         struct ldb_message *msg = NULL;
 369         struct ldb_dn *dn;
 370         const char *errstr = NULL;
 371         int result = LDAP_SUCCESS;
 372         int ldb_ret;
 373         int i,j;
 374
 375         DEBUG(10, ("AddRequest"));
 376         DEBUGADD(10, (" dn: %s", req->dn));
 377
 378         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 379         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 380
 381         dn = ldb_dn_explode(local_ctx, req->dn);
 382         VALID_DN_SYNTAX(dn,1);
 383
 384         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 385
 386         msg = talloc(local_ctx, struct ldb_message);
 387         NT_STATUS_HAVE_NO_MEMORY(msg);
 388
 389         msg->dn = dn;
 390         msg->private_data = NULL;
 391         msg->num_elements = 0;
 392         msg->elements = NULL;
 393
 394         if (req->num_attributes > 0) {
 395                 msg->num_elements = req->num_attributes;
 396                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 397                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 398
 399                 for (i=0; i < msg->num_elements; i++) {
 400                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 401                         msg->elements[i].flags = 0;
 402                         msg->elements[i].num_values = 0;
 403                         msg->elements[i].values = NULL;
 404
 405                         if (req->attributes[i].num_values > 0) {
 406                                 msg->elements[i].num_values = req->attributes[i].num_values;
 407                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 408                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 409
 410                                 for (j=0; j < msg->elements[i].num_values; j++) {
 411                                         if (!(req->attributes[i].values[j].length > 0)) {
 412                                                 result = LDAP_OTHER;
 413                                                 errstr = "Empty attribute values are not allowed";
 414                                                 goto reply;
 415                                         }
 416                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 417                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 418                                 }
 419                         } else {
 420                                 result = LDAP_OTHER;
 421                                 errstr = "No attribute values are not allowed";
 422                                 goto reply;
 423                         }
 424                 }
 425         } else {
 426                 result = LDAP_OTHER;
 427                 errstr = "No attributes are not allowed";
 428                 goto reply;
 429         }
 430
 431 reply:
 432         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 433         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 434
 435         if (result == LDAP_SUCCESS) {
 436                 ldb_ret = ldb_add(samdb, msg);
 437                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 438         }
 439
 440         add_result = &add_reply->msg->r.AddResponse;
 441         add_result->dn = NULL;
 442         add_result->resultcode = result;
 443         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 444         add_result->referral = NULL;
 445
 446         talloc_free(local_ctx);
 447
 448         ldapsrv_queue_reply(call, add_reply);
 449         return NT_STATUS_OK;
 450
 451 }
 452
 453 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 454 {
 455         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 456         struct ldap_Result *del_result;
 457         struct ldapsrv_reply *del_reply;
 458         void *local_ctx;
 459         struct ldb_context *samdb = call->conn->ldb;
 460         struct ldb_dn *dn;
 461         const char *errstr = NULL;
 462         int result = LDAP_SUCCESS;
 463         int ldb_ret;
 464
 465         DEBUG(10, ("DelRequest"));
 466         DEBUGADD(10, (" dn: %s", req->dn));
 467
 468         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 469         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 470
 471         dn = ldb_dn_explode(local_ctx, req->dn);
 472         VALID_DN_SYNTAX(dn,1);
 473
 474         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 475
 476 reply:
 477         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 478         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 479
 480         if (result == LDAP_SUCCESS) {
 481                 ldb_ret = ldb_delete(samdb, dn);
 482                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 483         }
 484
 485         del_result = &del_reply->msg->r.DelResponse;
 486         del_result->dn = NULL;
 487         del_result->resultcode = result;
 488         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 489         del_result->referral = NULL;
 490
 491         talloc_free(local_ctx);
 492
 493         ldapsrv_queue_reply(call, del_reply);
 494         return NT_STATUS_OK;
 495 }
 496
 497 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 498 {
 499         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 500         struct ldap_Result *modifydn;
 501         struct ldapsrv_reply *modifydn_r;
 502         void *local_ctx;
 503         struct ldb_context *samdb = call->conn->ldb;
 504         struct ldb_dn *olddn, *newdn, *newrdn;
 505         struct ldb_dn *parentdn = NULL;
 506         const char *errstr = NULL;
 507         int result = LDAP_SUCCESS;
 508         int ldb_ret;
 509
 510         DEBUG(10, ("ModifyDNRequrest"));
 511         DEBUGADD(10, (" dn: %s", req->dn));
 512         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 513
 514         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 515         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 516
 517         olddn = ldb_dn_explode(local_ctx, req->dn);
 518         VALID_DN_SYNTAX(olddn, 2);
 519
 520         newrdn = ldb_dn_explode(local_ctx, req->newrdn);
 521         VALID_DN_SYNTAX(newrdn, 1);
 522
 523         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 524         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 525
 526         /* we can't handle the rename if we should not remove the old dn */
 527         if (!req->deleteolddn) {
 528                 result = LDAP_UNWILLING_TO_PERFORM;
 529                 errstr = "Old RDN must be deleted";
 530                 goto reply;
 531         }
 532
 533         if (newrdn->comp_num > 1) {
 534                 result = LDAP_NAMING_VIOLATION;
 535                 errstr = "Error new RDN invalid";
 536                 goto reply;
 537         }
 538
 539         if (req->newsuperior) {
 540                 parentdn = ldb_dn_explode(local_ctx, req->newsuperior);
 541                 VALID_DN_SYNTAX(parentdn, 0);
 542                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 543
 544                 if (parentdn->comp_num < 1) {
 545                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 546                         errstr = "Error new Superior DN invalid";
 547                         goto reply;
 548                 }
 549         }
 550
 551         if (!parentdn) {
 552                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 553                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 554         }
 555
 556         newdn = ldb_dn_make_child(local_ctx, ldb_dn_get_rdn(local_ctx, newrdn), parentdn);
 557         NT_STATUS_HAVE_NO_MEMORY(newdn);
 558
 559 reply:
 560         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 561         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 562
 563         if (result == LDAP_SUCCESS) {
 564                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 565                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 566         }
 567
 568         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 569         modifydn->dn = NULL;
 570         modifydn->resultcode = result;
 571         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 572         modifydn->referral = NULL;
 573
 574         talloc_free(local_ctx);
 575
 576         ldapsrv_queue_reply(call, modifydn_r);
 577         return NT_STATUS_OK;
 578 }
 579
 580 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 581 {
 582         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 583         struct ldap_Result *compare;
 584         struct ldapsrv_reply *compare_r;
 585         void *local_ctx;
 586         struct ldb_context *samdb = call->conn->ldb;
 587         struct ldb_result *res = NULL;
 588         struct ldb_dn *dn;
 589         const char *attrs[1];
 590         const char *errstr = NULL;
 591         const char *filter = NULL;
 592         int result = LDAP_SUCCESS;
 593         int ldb_ret;
 594
 595         DEBUG(10, ("CompareRequest"));
 596         DEBUGADD(10, (" dn: %s", req->dn));
 597
 598         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 599         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 600
 601         dn = ldb_dn_explode(local_ctx, req->dn);
 602         VALID_DN_SYNTAX(dn, 1);
 603
 604         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 605         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 606                                  (int)req->value.length, req->value.data);
 607         NT_STATUS_HAVE_NO_MEMORY(filter);
 608
 609         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 610
 611         attrs[0] = NULL;
 612
 613 reply:
 614         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 615         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 616
 617         if (result == LDAP_SUCCESS) {
 618                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 619                 talloc_steal(samdb, res);
 620                 if (ldb_ret != LDB_SUCCESS) {
 621                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 622                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 623                 } else if (res->count == 0) {
 624                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 625                         result = LDAP_COMPARE_FALSE;
 626                         errstr = NULL;
 627                 } else if (res->count == 1) {
 628                         DEBUG(10,("CompareRequest: matched\n"));
 629                         result = LDAP_COMPARE_TRUE;
 630                         errstr = NULL;
 631                 } else if (res->count > 1) {
 632                         result = LDAP_OTHER;
 633                         errstr = "too many objects match";
 634                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 635                 }
 636         }
 637
 638         compare = &compare_r->msg->r.CompareResponse;
 639         compare->dn = NULL;
 640         compare->resultcode = result;
 641         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 642         compare->referral = NULL;
 643
 644         talloc_free(local_ctx);
 645
 646         ldapsrv_queue_reply(call, compare_r);
 647         return NT_STATUS_OK;
 648 }
 649
 650 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 651 {
 652 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 653         DEBUG(10, ("AbandonRequest\n"));
 654         return NT_STATUS_OK;
 655 }
 656
 657 static NTSTATUS ldapsrv_ExtendedRequest(struct ldapsrv_call *call)
 658 {
 659 /*      struct ldap_ExtendedRequest *req = &call->request.r.ExtendedRequest;*/
 660         struct ldapsrv_reply *reply;
 661
 662         DEBUG(10, ("Extended\n"));
 663
 664         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 665         if (!reply) {
 666                 return NT_STATUS_NO_MEMORY;
 667         }
 668
 669         ZERO_STRUCT(reply->msg->r);
 670
 671         ldapsrv_queue_reply(call, reply);
 672         return NT_STATUS_OK;
 673 }
 674
 675 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 676 {
 677         switch(call->request->type) {
 678         case LDAP_TAG_BindRequest:
 679                 return ldapsrv_BindRequest(call);
 680         case LDAP_TAG_UnbindRequest:
 681                 return ldapsrv_UnbindRequest(call);
 682         case LDAP_TAG_SearchRequest:
 683                 return ldapsrv_SearchRequest(call);
 684         case LDAP_TAG_ModifyRequest:
 685                 return ldapsrv_ModifyRequest(call);
 686         case LDAP_TAG_AddRequest:
 687                 return ldapsrv_AddRequest(call);
 688         case LDAP_TAG_DelRequest:
 689                 return ldapsrv_DelRequest(call);
 690         case LDAP_TAG_ModifyDNRequest:
 691                 return ldapsrv_ModifyDNRequest(call);
 692         case LDAP_TAG_CompareRequest:
 693                 return ldapsrv_CompareRequest(call);
 694         case LDAP_TAG_AbandonRequest:
 695                 return ldapsrv_AbandonRequest(call);
 696         case LDAP_TAG_ExtendedRequest:
 697                 return ldapsrv_ExtendedRequest(call);
 698         default:
 699                 return ldapsrv_unwilling(call, 2);
 700         }
 701 }
 702
 703