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   map controls
  49 */
  50 static int get_ldb_controls(void *mem_ctx, struct ldap_Control **controls, struct ldb_control ***lcontrols)
  51 {
  52         struct ldb_control **lctrl;
  53         int i, l;
  54
  55         if (controls == NULL || controls[0] == NULL) {
  56                 *lcontrols = NULL;
  57                 return LDB_SUCCESS;
  58         }
  59
  60         l = 0;
  61         lctrl = NULL;
  62         *lcontrols = NULL;
  63
  64         for (i = 0; controls[i] != NULL; i++) {
  65                 lctrl = talloc_realloc(mem_ctx, lctrl, struct ldb_control *, l + 2);
  66                 if (lctrl == NULL) {
  67                         return LDB_ERR_OTHER;
  68                 }
  69                 lctrl[l] = talloc(lctrl, struct ldb_control);
  70                 if (lctrl[l] == NULL) {
  71                         return LDB_ERR_OTHER;
  72                 }
  73                 lctrl[l]->oid = controls[i]->oid;
  74                 lctrl[l]->critical = controls[i]->critical;
  75                 lctrl[l]->data = controls[i]->value;
  76                 l++;
  77         }
  78         lctrl[l] = NULL;
  79
  80         *lcontrols = lctrl;
  81
  82         return LDB_SUCCESS;
  83 }
  84
  85 /*
  86   connect to the sam database
  87 */
  88 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
  89 {
  90         conn->ldb = samdb_connect(conn, conn->session_info);
  91         if (conn->ldb == NULL) {
  92                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
  93         }
  94         ldb_set_opaque(conn->ldb, "server_credentials", conn->server_credentials);
  95
  96         return NT_STATUS_OK;
  97 }
  98
  99 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
 100 {
 101         struct ldapsrv_reply *reply;
 102
 103         reply = talloc(call, struct ldapsrv_reply);
 104         if (!reply) {
 105                 return NULL;
 106         }
 107         reply->msg = talloc(reply, struct ldap_message);
 108         if (reply->msg == NULL) {
 109                 talloc_free(reply);
 110                 return NULL;
 111         }
 112
 113         reply->msg->messageid = call->request->messageid;
 114         reply->msg->type = type;
 115         reply->msg->controls = NULL;
 116
 117         return reply;
 118 }
 119
 120 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
 121 {
 122         DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
 123 }
 124
 125 NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
 126 {
 127         struct ldapsrv_reply *reply;
 128         struct ldap_ExtendedResponse *r;
 129
 130         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
 131
 132         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 133         if (!reply) {
 134                 return NT_STATUS_NO_MEMORY;
 135         }
 136
 137         r = &reply->msg->r.ExtendedResponse;
 138         r->response.resultcode = error;
 139         r->response.dn = NULL;
 140         r->response.errormessage = NULL;
 141         r->response.referral = NULL;
 142         r->oid = NULL;
 143         r->value = NULL;
 144
 145         ldapsrv_queue_reply(call, reply);
 146         return NT_STATUS_OK;
 147 }
 148
 149 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 150 {
 151         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 152         struct ldap_SearchResEntry *ent;
 153         struct ldap_Result *done;
 154         struct ldapsrv_reply *ent_r, *done_r;
 155         void *local_ctx;
 156         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 157         struct ldb_dn *basedn;
 158         struct ldb_result *res = NULL;
 159         struct ldb_request lreq;
 160         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 161         const char **attrs = NULL;
 162         const char *errstr = NULL;
 163         int success_limit = 1;
 164         int result = LDAP_SUCCESS;
 165         int ldb_ret;
 166         int i, j;
 167
 168         DEBUG(10, ("SearchRequest"));
 169         DEBUGADD(10, (" basedn: %s", req->basedn));
 170         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 171
 172         local_ctx = talloc_new(call);
 173         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 174
 175         basedn = ldb_dn_explode(local_ctx, req->basedn);
 176         VALID_DN_SYNTAX(basedn, 0);
 177
 178         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 179         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 180
 181         switch (req->scope) {
 182                 case LDAP_SEARCH_SCOPE_BASE:
 183                         DEBUG(10,("SearchRequest: scope: [BASE]\n"));
 184                         scope = LDB_SCOPE_BASE;
 185                         success_limit = 0;
 186                         break;
 187                 case LDAP_SEARCH_SCOPE_SINGLE:
 188                         DEBUG(10,("SearchRequest: scope: [ONE]\n"));
 189                         scope = LDB_SCOPE_ONELEVEL;
 190                         success_limit = 0;
 191                         break;
 192                 case LDAP_SEARCH_SCOPE_SUB:
 193                         DEBUG(10,("SearchRequest: scope: [SUB]\n"));
 194                         scope = LDB_SCOPE_SUBTREE;
 195                         success_limit = 0;
 196                         break;
 197         }
 198
 199         if (req->num_attributes >= 1) {
 200                 attrs = talloc_array(samdb, const char *, req->num_attributes+1);
 201                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 202
 203                 for (i=0; i < req->num_attributes; i++) {
 204                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 205                         attrs[i] = req->attributes[i];
 206                 }
 207                 attrs[i] = NULL;
 208         }
 209
 210         DEBUG(5,("ldb_request dn=%s filter=%s\n",
 211                  req->basedn, ldb_filter_from_tree(call, req->tree)));
 212
 213         ZERO_STRUCT(lreq);
 214         lreq.operation = LDB_REQ_SEARCH;
 215         lreq.op.search.base = basedn;
 216         lreq.op.search.scope = scope;
 217         lreq.op.search.tree = req->tree;
 218         lreq.op.search.attrs = attrs;
 219
 220         ldb_ret = get_ldb_controls(local_ctx, call->request->controls, &lreq.controls);
 221
 222         if (ldb_ret != LDB_SUCCESS) {
 223                 /* get_ldb_controls fails only on a critical internal error or when
 224                  * a control is defined as critical but it is not supported
 225                  */
 226                 goto reply;
 227         }
 228
 229         ldb_ret = ldb_request(samdb, &lreq);
 230
 231         /* Ensure we don't keep the search results around for too long */
 232         res = talloc_steal(local_ctx, lreq.op.search.res);
 233
 234         if (ldb_ret == LDB_SUCCESS) {
 235                 for (i = 0; i < res->count; i++) {
 236                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 237                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 238
 239                         ent = &ent_r->msg->r.SearchResultEntry;
 240                         ent->dn = ldb_dn_linearize(ent_r, res->msgs[i]->dn);
 241                         ent->num_attributes = 0;
 242                         ent->attributes = NULL;
 243                         if (res->msgs[i]->num_elements == 0) {
 244                                 goto queue_reply;
 245                         }
 246                         ent->num_attributes = res->msgs[i]->num_elements;
 247                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 248                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 249                         for (j=0; j < ent->num_attributes; j++) {
 250                                 ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[i]->elements[j].name);
 251                                 ent->attributes[j].num_values = 0;
 252                                 ent->attributes[j].values = NULL;
 253                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 254                                         continue;
 255                                 }
 256                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 257                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 258                                 talloc_steal(ent->attributes, res->msgs[i]->elements[j].values);
 259                         }
 260 queue_reply:
 261                         ldapsrv_queue_reply(call, ent_r);
 262                 }
 263         }
 264
 265 reply:
 266         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 267         NT_STATUS_HAVE_NO_MEMORY(done_r);
 268
 269         done = &done_r->msg->r.SearchResultDone;
 270         done->dn = NULL;
 271         done->referral = NULL;
 272
 273         if (ldb_ret == LDB_SUCCESS) {
 274                 if (res->count >= success_limit) {
 275                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 276                         result = LDAP_SUCCESS;
 277                         errstr = NULL;
 278                 } else if (res->count == 0) {
 279                         DEBUG(10,("SearchRequest: no results\n"));
 280                         result = LDAP_NO_SUCH_OBJECT;
 281                         errstr = ldb_errstring(samdb);
 282                 }
 283                 if (res->controls) {
 284                         done_r->msg->controls = (struct ldap_Control **)(res->controls);
 285                         talloc_steal(done_r, res->controls);
 286                 }
 287         } else {
 288                 DEBUG(10,("SearchRequest: error\n"));
 289                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 290         }
 291
 292         done->resultcode = result;
 293         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 294
 295         talloc_free(local_ctx);
 296
 297         ldapsrv_queue_reply(call, done_r);
 298         return NT_STATUS_OK;
 299 }
 300
 301 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 302 {
 303         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 304         struct ldap_Result *modify_result;
 305         struct ldapsrv_reply *modify_reply;
 306         void *local_ctx;
 307         struct ldb_context *samdb = call->conn->ldb;
 308         struct ldb_message *msg = NULL;
 309         struct ldb_dn *dn;
 310         const char *errstr = NULL;
 311         int result = LDAP_SUCCESS;
 312         int ldb_ret;
 313         int i,j;
 314
 315         DEBUG(10, ("ModifyRequest"));
 316         DEBUGADD(10, (" dn: %s", req->dn));
 317
 318         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 319         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 320
 321         dn = ldb_dn_explode(local_ctx, req->dn);
 322         VALID_DN_SYNTAX(dn, 1);
 323
 324         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 325
 326         msg = talloc(local_ctx, struct ldb_message);
 327         NT_STATUS_HAVE_NO_MEMORY(msg);
 328
 329         msg->dn = dn;
 330         msg->private_data = NULL;
 331         msg->num_elements = 0;
 332         msg->elements = NULL;
 333
 334         if (req->num_mods > 0) {
 335                 msg->num_elements = req->num_mods;
 336                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 337                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 338
 339                 for (i=0; i < msg->num_elements; i++) {
 340                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 341                         msg->elements[i].num_values = 0;
 342                         msg->elements[i].values = NULL;
 343
 344                         switch (req->mods[i].type) {
 345                         default:
 346                                 result = LDAP_PROTOCOL_ERROR;
 347                                 errstr = "Invalid LDAP_MODIFY_* type";
 348                                 goto reply;
 349                         case LDAP_MODIFY_ADD:
 350                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 351                                 break;
 352                         case LDAP_MODIFY_DELETE:
 353                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 354                                 break;
 355                         case LDAP_MODIFY_REPLACE:
 356                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 357                                 break;
 358                         }
 359
 360                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 361                         if (msg->elements[i].num_values > 0) {
 362                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 363                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 364
 365                                 for (j=0; j < msg->elements[i].num_values; j++) {
 366                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 367                                                 result = LDAP_OTHER;
 368                                                 errstr = "Empty attribute values are not allowed";
 369                                                 goto reply;
 370                                         }
 371                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 372                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 373                                 }
 374                         }
 375                 }
 376         } else {
 377                 result = LDAP_OTHER;
 378                 errstr = "No mods are not allowed";
 379                 goto reply;
 380         }
 381
 382 reply:
 383         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 384         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 385
 386         if (result == LDAP_SUCCESS) {
 387                 ldb_ret = ldb_modify(samdb, msg);
 388                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 389         }
 390
 391         modify_result = &modify_reply->msg->r.AddResponse;
 392         modify_result->dn = NULL;
 393         modify_result->resultcode = result;
 394         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 395         modify_result->referral = NULL;
 396
 397         talloc_free(local_ctx);
 398
 399         ldapsrv_queue_reply(call, modify_reply);
 400         return NT_STATUS_OK;
 401
 402 }
 403
 404 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 405 {
 406         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 407         struct ldap_Result *add_result;
 408         struct ldapsrv_reply *add_reply;
 409         void *local_ctx;
 410         struct ldb_context *samdb = call->conn->ldb;
 411         struct ldb_message *msg = NULL;
 412         struct ldb_dn *dn;
 413         const char *errstr = NULL;
 414         int result = LDAP_SUCCESS;
 415         int ldb_ret;
 416         int i,j;
 417
 418         DEBUG(10, ("AddRequest"));
 419         DEBUGADD(10, (" dn: %s", req->dn));
 420
 421         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 422         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 423
 424         dn = ldb_dn_explode(local_ctx, req->dn);
 425         VALID_DN_SYNTAX(dn,1);
 426
 427         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 428
 429         msg = talloc(local_ctx, struct ldb_message);
 430         NT_STATUS_HAVE_NO_MEMORY(msg);
 431
 432         msg->dn = dn;
 433         msg->private_data = NULL;
 434         msg->num_elements = 0;
 435         msg->elements = NULL;
 436
 437         if (req->num_attributes > 0) {
 438                 msg->num_elements = req->num_attributes;
 439                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 440                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 441
 442                 for (i=0; i < msg->num_elements; i++) {
 443                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 444                         msg->elements[i].flags = 0;
 445                         msg->elements[i].num_values = 0;
 446                         msg->elements[i].values = NULL;
 447
 448                         if (req->attributes[i].num_values > 0) {
 449                                 msg->elements[i].num_values = req->attributes[i].num_values;
 450                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 451                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 452
 453                                 for (j=0; j < msg->elements[i].num_values; j++) {
 454                                         if (!(req->attributes[i].values[j].length > 0)) {
 455                                                 result = LDAP_OTHER;
 456                                                 errstr = "Empty attribute values are not allowed";
 457                                                 goto reply;
 458                                         }
 459                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 460                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 461                                 }
 462                         } else {
 463                                 result = LDAP_OTHER;
 464                                 errstr = "No attribute values are not allowed";
 465                                 goto reply;
 466                         }
 467                 }
 468         } else {
 469                 result = LDAP_OTHER;
 470                 errstr = "No attributes are not allowed";
 471                 goto reply;
 472         }
 473
 474 reply:
 475         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 476         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 477
 478         if (result == LDAP_SUCCESS) {
 479                 ldb_ret = ldb_add(samdb, msg);
 480                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 481         }
 482
 483         add_result = &add_reply->msg->r.AddResponse;
 484         add_result->dn = NULL;
 485         add_result->resultcode = result;
 486         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 487         add_result->referral = NULL;
 488
 489         talloc_free(local_ctx);
 490
 491         ldapsrv_queue_reply(call, add_reply);
 492         return NT_STATUS_OK;
 493
 494 }
 495
 496 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 497 {
 498         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 499         struct ldap_Result *del_result;
 500         struct ldapsrv_reply *del_reply;
 501         void *local_ctx;
 502         struct ldb_context *samdb = call->conn->ldb;
 503         struct ldb_dn *dn;
 504         const char *errstr = NULL;
 505         int result = LDAP_SUCCESS;
 506         int ldb_ret;
 507
 508         DEBUG(10, ("DelRequest"));
 509         DEBUGADD(10, (" dn: %s", req->dn));
 510
 511         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 512         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 513
 514         dn = ldb_dn_explode(local_ctx, req->dn);
 515         VALID_DN_SYNTAX(dn,1);
 516
 517         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 518
 519 reply:
 520         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 521         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 522
 523         if (result == LDAP_SUCCESS) {
 524                 ldb_ret = ldb_delete(samdb, dn);
 525                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 526         }
 527
 528         del_result = &del_reply->msg->r.DelResponse;
 529         del_result->dn = NULL;
 530         del_result->resultcode = result;
 531         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 532         del_result->referral = NULL;
 533
 534         talloc_free(local_ctx);
 535
 536         ldapsrv_queue_reply(call, del_reply);
 537         return NT_STATUS_OK;
 538 }
 539
 540 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 541 {
 542         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 543         struct ldap_Result *modifydn;
 544         struct ldapsrv_reply *modifydn_r;
 545         void *local_ctx;
 546         struct ldb_context *samdb = call->conn->ldb;
 547         struct ldb_dn *olddn, *newdn, *newrdn;
 548         struct ldb_dn *parentdn = NULL;
 549         const char *errstr = NULL;
 550         int result = LDAP_SUCCESS;
 551         int ldb_ret;
 552
 553         DEBUG(10, ("ModifyDNRequrest"));
 554         DEBUGADD(10, (" dn: %s", req->dn));
 555         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 556
 557         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 558         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 559
 560         olddn = ldb_dn_explode(local_ctx, req->dn);
 561         VALID_DN_SYNTAX(olddn, 2);
 562
 563         newrdn = ldb_dn_explode(local_ctx, req->newrdn);
 564         VALID_DN_SYNTAX(newrdn, 1);
 565
 566         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 567         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 568
 569         /* we can't handle the rename if we should not remove the old dn */
 570         if (!req->deleteolddn) {
 571                 result = LDAP_UNWILLING_TO_PERFORM;
 572                 errstr = "Old RDN must be deleted";
 573                 goto reply;
 574         }
 575
 576         if (newrdn->comp_num > 1) {
 577                 result = LDAP_NAMING_VIOLATION;
 578                 errstr = "Error new RDN invalid";
 579                 goto reply;
 580         }
 581
 582         if (req->newsuperior) {
 583                 parentdn = ldb_dn_explode(local_ctx, req->newsuperior);
 584                 VALID_DN_SYNTAX(parentdn, 0);
 585                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 586
 587                 if (parentdn->comp_num < 1) {
 588                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 589                         errstr = "Error new Superior DN invalid";
 590                         goto reply;
 591                 }
 592         }
 593
 594         if (!parentdn) {
 595                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 596                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 597         }
 598
 599         newdn = ldb_dn_make_child(local_ctx, ldb_dn_get_rdn(local_ctx, newrdn), parentdn);
 600         NT_STATUS_HAVE_NO_MEMORY(newdn);
 601
 602 reply:
 603         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 604         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 605
 606         if (result == LDAP_SUCCESS) {
 607                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 608                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 609         }
 610
 611         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 612         modifydn->dn = NULL;
 613         modifydn->resultcode = result;
 614         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 615         modifydn->referral = NULL;
 616
 617         talloc_free(local_ctx);
 618
 619         ldapsrv_queue_reply(call, modifydn_r);
 620         return NT_STATUS_OK;
 621 }
 622
 623 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 624 {
 625         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 626         struct ldap_Result *compare;
 627         struct ldapsrv_reply *compare_r;
 628         void *local_ctx;
 629         struct ldb_context *samdb = call->conn->ldb;
 630         struct ldb_result *res = NULL;
 631         struct ldb_dn *dn;
 632         const char *attrs[1];
 633         const char *errstr = NULL;
 634         const char *filter = NULL;
 635         int result = LDAP_SUCCESS;
 636         int ldb_ret;
 637
 638         DEBUG(10, ("CompareRequest"));
 639         DEBUGADD(10, (" dn: %s", req->dn));
 640
 641         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 642         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 643
 644         dn = ldb_dn_explode(local_ctx, req->dn);
 645         VALID_DN_SYNTAX(dn, 1);
 646
 647         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 648         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 649                                  (int)req->value.length, req->value.data);
 650         NT_STATUS_HAVE_NO_MEMORY(filter);
 651
 652         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 653
 654         attrs[0] = NULL;
 655
 656 reply:
 657         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 658         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 659
 660         if (result == LDAP_SUCCESS) {
 661                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 662                 talloc_steal(samdb, res);
 663                 if (ldb_ret != LDB_SUCCESS) {
 664                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 665                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 666                 } else if (res->count == 0) {
 667                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 668                         result = LDAP_COMPARE_FALSE;
 669                         errstr = NULL;
 670                 } else if (res->count == 1) {
 671                         DEBUG(10,("CompareRequest: matched\n"));
 672                         result = LDAP_COMPARE_TRUE;
 673                         errstr = NULL;
 674                 } else if (res->count > 1) {
 675                         result = LDAP_OTHER;
 676                         errstr = "too many objects match";
 677                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 678                 }
 679         }
 680
 681         compare = &compare_r->msg->r.CompareResponse;
 682         compare->dn = NULL;
 683         compare->resultcode = result;
 684         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 685         compare->referral = NULL;
 686
 687         talloc_free(local_ctx);
 688
 689         ldapsrv_queue_reply(call, compare_r);
 690         return NT_STATUS_OK;
 691 }
 692
 693 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 694 {
 695 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 696         DEBUG(10, ("AbandonRequest\n"));
 697         return NT_STATUS_OK;
 698 }
 699
 700 static NTSTATUS ldapsrv_ExtendedRequest(struct ldapsrv_call *call)
 701 {
 702 /*      struct ldap_ExtendedRequest *req = &call->request.r.ExtendedRequest;*/
 703         struct ldapsrv_reply *reply;
 704
 705         DEBUG(10, ("Extended\n"));
 706
 707         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 708         if (!reply) {
 709                 return NT_STATUS_NO_MEMORY;
 710         }
 711
 712         ZERO_STRUCT(reply->msg->r);
 713
 714         ldapsrv_queue_reply(call, reply);
 715         return NT_STATUS_OK;
 716 }
 717
 718 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 719 {
 720         switch(call->request->type) {
 721         case LDAP_TAG_BindRequest:
 722                 return ldapsrv_BindRequest(call);
 723         case LDAP_TAG_UnbindRequest:
 724                 return ldapsrv_UnbindRequest(call);
 725         case LDAP_TAG_SearchRequest:
 726                 return ldapsrv_SearchRequest(call);
 727         case LDAP_TAG_ModifyRequest:
 728                 return ldapsrv_ModifyRequest(call);
 729         case LDAP_TAG_AddRequest:
 730                 return ldapsrv_AddRequest(call);
 731         case LDAP_TAG_DelRequest:
 732                 return ldapsrv_DelRequest(call);
 733         case LDAP_TAG_ModifyDNRequest:
 734                 return ldapsrv_ModifyDNRequest(call);
 735         case LDAP_TAG_CompareRequest:
 736                 return ldapsrv_CompareRequest(call);
 737         case LDAP_TAG_AbandonRequest:
 738                 return ldapsrv_AbandonRequest(call);
 739         case LDAP_TAG_ExtendedRequest:
 740                 return ldapsrv_ExtendedRequest(call);
 741         default:
 742                 return ldapsrv_unwilling(call, 2);
 743         }
 744 }
 745
 746