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->name = NULL;
 143         r->value.data = NULL;
 144         r->value.length = 0;
 145
 146         ldapsrv_queue_reply(call, reply);
 147         return NT_STATUS_OK;
 148 }
 149
 150 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 151 {
 152         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 153         struct ldap_SearchResEntry *ent;
 154         struct ldap_Result *done;
 155         struct ldapsrv_reply *ent_r, *done_r;
 156         void *local_ctx;
 157         struct ldb_context *samdb = call->conn->ldb;
 158         struct ldb_dn *basedn;
 159         struct ldb_result *res = NULL;
 160         struct ldb_request lreq;
 161         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 162         const char **attrs = NULL;
 163         const char *errstr = NULL;
 164         int success_limit = 1;
 165         int result = LDAP_SUCCESS;
 166         int ldb_ret;
 167         int i, j, y;
 168
 169         DEBUG(10, ("SearchRequest"));
 170         DEBUGADD(10, (" basedn: %s", req->basedn));
 171         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 172
 173         local_ctx = talloc_named(call, 0, "sldb_Search local memory context");
 174         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 175
 176         basedn = ldb_dn_explode(local_ctx, req->basedn);
 177         VALID_DN_SYNTAX(basedn, 0);
 178
 179         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 180         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 181
 182         switch (req->scope) {
 183                 case LDAP_SEARCH_SCOPE_BASE:
 184                         DEBUG(10,("SearchRequest: scope: [BASE]\n"));
 185                         scope = LDB_SCOPE_BASE;
 186                         success_limit = 0;
 187                         break;
 188                 case LDAP_SEARCH_SCOPE_SINGLE:
 189                         DEBUG(10,("SearchRequest: scope: [ONE]\n"));
 190                         scope = LDB_SCOPE_ONELEVEL;
 191                         success_limit = 0;
 192                         break;
 193                 case LDAP_SEARCH_SCOPE_SUB:
 194                         DEBUG(10,("SearchRequest: scope: [SUB]\n"));
 195                         scope = LDB_SCOPE_SUBTREE;
 196                         success_limit = 0;
 197                         break;
 198         }
 199
 200         if (req->num_attributes >= 1) {
 201                 attrs = talloc_array(samdb, const char *, req->num_attributes+1);
 202                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 203
 204                 for (i=0; i < req->num_attributes; i++) {
 205                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 206                         attrs[i] = req->attributes[i];
 207                 }
 208                 attrs[i] = NULL;
 209         }
 210
 211         DEBUG(5,("ldb_request dn=%s filter=%s\n",
 212                  req->basedn, ldb_filter_from_tree(call, req->tree)));
 213
 214         ZERO_STRUCT(lreq);
 215         lreq.operation = LDB_REQ_SEARCH;
 216         lreq.op.search.base = basedn;
 217         lreq.op.search.scope = scope;
 218         lreq.op.search.tree = req->tree;
 219         lreq.op.search.attrs = attrs;
 220
 221         ldb_ret = get_ldb_controls(local_ctx, call->request->controls, &lreq.controls);
 222
 223         if (ldb_ret != LDB_SUCCESS) {
 224                 /* get_ldb_controls fails only on a critical internal error or when
 225                  * a control is defined as critical but it is not supported
 226                  */
 227                 goto reply;
 228         }
 229
 230         ldb_ret = ldb_request(samdb, &lreq);
 231
 232         res = talloc_steal(samdb, 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 = talloc_array(ent->attributes,
 258                                                                 DATA_BLOB, ent->attributes[j].num_values);
 259                                 NT_STATUS_HAVE_NO_MEMORY(ent->attributes[j].values);
 260                                 for (y=0; y < ent->attributes[j].num_values; y++) {
 261                                         ent->attributes[j].values[y].length = res->msgs[i]->elements[j].values[y].length;
 262                                         ent->attributes[j].values[y].data = talloc_steal(ent->attributes[j].values,
 263                                                                                 res->msgs[i]->elements[j].values[y].data);
 264                                 }
 265                         }
 266 queue_reply:
 267                         ldapsrv_queue_reply(call, ent_r);
 268                 }
 269         }
 270
 271 reply:
 272         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 273         NT_STATUS_HAVE_NO_MEMORY(done_r);
 274
 275         done = &done_r->msg->r.SearchResultDone;
 276         done->dn = NULL;
 277         done->referral = NULL;
 278
 279         if (ldb_ret == LDB_SUCCESS) {
 280                 if (res->count >= success_limit) {
 281                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 282                         result = LDAP_SUCCESS;
 283                         errstr = NULL;
 284                 } else if (res->count == 0) {
 285                         DEBUG(10,("SearchRequest: no results\n"));
 286                         result = LDAP_NO_SUCH_OBJECT;
 287                         errstr = ldb_errstring(samdb);
 288                 }
 289                 if (res->controls) {
 290                         done_r->msg->controls = (struct ldap_Control **)(res->controls);
 291                 }
 292         } else {
 293                 DEBUG(10,("SearchRequest: error\n"));
 294                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 295         }
 296
 297         done->resultcode = result;
 298         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 299
 300         talloc_free(local_ctx);
 301
 302         ldapsrv_queue_reply(call, done_r);
 303         return NT_STATUS_OK;
 304 }
 305
 306 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 307 {
 308         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 309         struct ldap_Result *modify_result;
 310         struct ldapsrv_reply *modify_reply;
 311         void *local_ctx;
 312         struct ldb_context *samdb = call->conn->ldb;
 313         struct ldb_message *msg = NULL;
 314         struct ldb_dn *dn;
 315         const char *errstr = NULL;
 316         int result = LDAP_SUCCESS;
 317         int ldb_ret;
 318         int i,j;
 319
 320         DEBUG(10, ("ModifyRequest"));
 321         DEBUGADD(10, (" dn: %s", req->dn));
 322
 323         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 324         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 325
 326         dn = ldb_dn_explode(local_ctx, req->dn);
 327         VALID_DN_SYNTAX(dn, 1);
 328
 329         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 330
 331         msg = talloc(local_ctx, struct ldb_message);
 332         NT_STATUS_HAVE_NO_MEMORY(msg);
 333
 334         msg->dn = dn;
 335         msg->private_data = NULL;
 336         msg->num_elements = 0;
 337         msg->elements = NULL;
 338
 339         if (req->num_mods > 0) {
 340                 msg->num_elements = req->num_mods;
 341                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 342                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 343
 344                 for (i=0; i < msg->num_elements; i++) {
 345                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 346                         msg->elements[i].num_values = 0;
 347                         msg->elements[i].values = NULL;
 348
 349                         switch (req->mods[i].type) {
 350                         default:
 351                                 result = LDAP_PROTOCOL_ERROR;
 352                                 errstr = "Invalid LDAP_MODIFY_* type";
 353                                 goto reply;
 354                         case LDAP_MODIFY_ADD:
 355                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 356                                 break;
 357                         case LDAP_MODIFY_DELETE:
 358                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 359                                 break;
 360                         case LDAP_MODIFY_REPLACE:
 361                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 362                                 break;
 363                         }
 364
 365                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 366                         if (msg->elements[i].num_values > 0) {
 367                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 368                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 369
 370                                 for (j=0; j < msg->elements[i].num_values; j++) {
 371                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 372                                                 result = LDAP_OTHER;
 373                                                 errstr = "Empty attribute values are not allowed";
 374                                                 goto reply;
 375                                         }
 376                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 377                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 378                                 }
 379                         }
 380                 }
 381         } else {
 382                 result = LDAP_OTHER;
 383                 errstr = "No mods are not allowed";
 384                 goto reply;
 385         }
 386
 387 reply:
 388         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 389         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 390
 391         if (result == LDAP_SUCCESS) {
 392                 ldb_ret = ldb_modify(samdb, msg);
 393                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 394         }
 395
 396         modify_result = &modify_reply->msg->r.AddResponse;
 397         modify_result->dn = NULL;
 398         modify_result->resultcode = result;
 399         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 400         modify_result->referral = NULL;
 401
 402         talloc_free(local_ctx);
 403
 404         ldapsrv_queue_reply(call, modify_reply);
 405         return NT_STATUS_OK;
 406
 407 }
 408
 409 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 410 {
 411         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 412         struct ldap_Result *add_result;
 413         struct ldapsrv_reply *add_reply;
 414         void *local_ctx;
 415         struct ldb_context *samdb = call->conn->ldb;
 416         struct ldb_message *msg = NULL;
 417         struct ldb_dn *dn;
 418         const char *errstr = NULL;
 419         int result = LDAP_SUCCESS;
 420         int ldb_ret;
 421         int i,j;
 422
 423         DEBUG(10, ("AddRequest"));
 424         DEBUGADD(10, (" dn: %s", req->dn));
 425
 426         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 427         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 428
 429         dn = ldb_dn_explode(local_ctx, req->dn);
 430         VALID_DN_SYNTAX(dn,1);
 431
 432         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 433
 434         msg = talloc(local_ctx, struct ldb_message);
 435         NT_STATUS_HAVE_NO_MEMORY(msg);
 436
 437         msg->dn = dn;
 438         msg->private_data = NULL;
 439         msg->num_elements = 0;
 440         msg->elements = NULL;
 441
 442         if (req->num_attributes > 0) {
 443                 msg->num_elements = req->num_attributes;
 444                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 445                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 446
 447                 for (i=0; i < msg->num_elements; i++) {
 448                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 449                         msg->elements[i].flags = 0;
 450                         msg->elements[i].num_values = 0;
 451                         msg->elements[i].values = NULL;
 452
 453                         if (req->attributes[i].num_values > 0) {
 454                                 msg->elements[i].num_values = req->attributes[i].num_values;
 455                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 456                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 457
 458                                 for (j=0; j < msg->elements[i].num_values; j++) {
 459                                         if (!(req->attributes[i].values[j].length > 0)) {
 460                                                 result = LDAP_OTHER;
 461                                                 errstr = "Empty attribute values are not allowed";
 462                                                 goto reply;
 463                                         }
 464                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 465                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 466                                 }
 467                         } else {
 468                                 result = LDAP_OTHER;
 469                                 errstr = "No attribute values are not allowed";
 470                                 goto reply;
 471                         }
 472                 }
 473         } else {
 474                 result = LDAP_OTHER;
 475                 errstr = "No attributes are not allowed";
 476                 goto reply;
 477         }
 478
 479 reply:
 480         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 481         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 482
 483         if (result == LDAP_SUCCESS) {
 484                 ldb_ret = ldb_add(samdb, msg);
 485                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 486         }
 487
 488         add_result = &add_reply->msg->r.AddResponse;
 489         add_result->dn = NULL;
 490         add_result->resultcode = result;
 491         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 492         add_result->referral = NULL;
 493
 494         talloc_free(local_ctx);
 495
 496         ldapsrv_queue_reply(call, add_reply);
 497         return NT_STATUS_OK;
 498
 499 }
 500
 501 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 502 {
 503         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 504         struct ldap_Result *del_result;
 505         struct ldapsrv_reply *del_reply;
 506         void *local_ctx;
 507         struct ldb_context *samdb = call->conn->ldb;
 508         struct ldb_dn *dn;
 509         const char *errstr = NULL;
 510         int result = LDAP_SUCCESS;
 511         int ldb_ret;
 512
 513         DEBUG(10, ("DelRequest"));
 514         DEBUGADD(10, (" dn: %s", req->dn));
 515
 516         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 517         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 518
 519         dn = ldb_dn_explode(local_ctx, req->dn);
 520         VALID_DN_SYNTAX(dn,1);
 521
 522         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 523
 524 reply:
 525         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 526         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 527
 528         if (result == LDAP_SUCCESS) {
 529                 ldb_ret = ldb_delete(samdb, dn);
 530                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 531         }
 532
 533         del_result = &del_reply->msg->r.DelResponse;
 534         del_result->dn = NULL;
 535         del_result->resultcode = result;
 536         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 537         del_result->referral = NULL;
 538
 539         talloc_free(local_ctx);
 540
 541         ldapsrv_queue_reply(call, del_reply);
 542         return NT_STATUS_OK;
 543 }
 544
 545 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 546 {
 547         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 548         struct ldap_Result *modifydn;
 549         struct ldapsrv_reply *modifydn_r;
 550         void *local_ctx;
 551         struct ldb_context *samdb = call->conn->ldb;
 552         struct ldb_dn *olddn, *newdn, *newrdn;
 553         struct ldb_dn *parentdn = NULL;
 554         const char *errstr = NULL;
 555         int result = LDAP_SUCCESS;
 556         int ldb_ret;
 557
 558         DEBUG(10, ("ModifyDNRequrest"));
 559         DEBUGADD(10, (" dn: %s", req->dn));
 560         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 561
 562         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 563         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 564
 565         olddn = ldb_dn_explode(local_ctx, req->dn);
 566         VALID_DN_SYNTAX(olddn, 2);
 567
 568         newrdn = ldb_dn_explode(local_ctx, req->newrdn);
 569         VALID_DN_SYNTAX(newrdn, 1);
 570
 571         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 572         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 573
 574         /* we can't handle the rename if we should not remove the old dn */
 575         if (!req->deleteolddn) {
 576                 result = LDAP_UNWILLING_TO_PERFORM;
 577                 errstr = "Old RDN must be deleted";
 578                 goto reply;
 579         }
 580
 581         if (newrdn->comp_num > 1) {
 582                 result = LDAP_NAMING_VIOLATION;
 583                 errstr = "Error new RDN invalid";
 584                 goto reply;
 585         }
 586
 587         if (req->newsuperior) {
 588                 parentdn = ldb_dn_explode(local_ctx, req->newsuperior);
 589                 VALID_DN_SYNTAX(parentdn, 0);
 590                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 591
 592                 if (parentdn->comp_num < 1) {
 593                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 594                         errstr = "Error new Superior DN invalid";
 595                         goto reply;
 596                 }
 597         }
 598
 599         if (!parentdn) {
 600                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 601                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 602         }
 603
 604         newdn = ldb_dn_make_child(local_ctx, ldb_dn_get_rdn(local_ctx, newrdn), parentdn);
 605         NT_STATUS_HAVE_NO_MEMORY(newdn);
 606
 607 reply:
 608         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 609         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 610
 611         if (result == LDAP_SUCCESS) {
 612                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 613                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 614         }
 615
 616         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 617         modifydn->dn = NULL;
 618         modifydn->resultcode = result;
 619         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 620         modifydn->referral = NULL;
 621
 622         talloc_free(local_ctx);
 623
 624         ldapsrv_queue_reply(call, modifydn_r);
 625         return NT_STATUS_OK;
 626 }
 627
 628 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 629 {
 630         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 631         struct ldap_Result *compare;
 632         struct ldapsrv_reply *compare_r;
 633         void *local_ctx;
 634         struct ldb_context *samdb = call->conn->ldb;
 635         struct ldb_result *res = NULL;
 636         struct ldb_dn *dn;
 637         const char *attrs[1];
 638         const char *errstr = NULL;
 639         const char *filter = NULL;
 640         int result = LDAP_SUCCESS;
 641         int ldb_ret;
 642
 643         DEBUG(10, ("CompareRequest"));
 644         DEBUGADD(10, (" dn: %s", req->dn));
 645
 646         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 647         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 648
 649         dn = ldb_dn_explode(local_ctx, req->dn);
 650         VALID_DN_SYNTAX(dn, 1);
 651
 652         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 653         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 654                                  (int)req->value.length, req->value.data);
 655         NT_STATUS_HAVE_NO_MEMORY(filter);
 656
 657         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 658
 659         attrs[0] = NULL;
 660
 661 reply:
 662         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 663         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 664
 665         if (result == LDAP_SUCCESS) {
 666                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 667                 talloc_steal(samdb, res);
 668                 if (ldb_ret != LDB_SUCCESS) {
 669                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 670                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 671                 } else if (res->count == 0) {
 672                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 673                         result = LDAP_COMPARE_FALSE;
 674                         errstr = NULL;
 675                 } else if (res->count == 1) {
 676                         DEBUG(10,("CompareRequest: matched\n"));
 677                         result = LDAP_COMPARE_TRUE;
 678                         errstr = NULL;
 679                 } else if (res->count > 1) {
 680                         result = LDAP_OTHER;
 681                         errstr = "too many objects match";
 682                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 683                 }
 684         }
 685
 686         compare = &compare_r->msg->r.CompareResponse;
 687         compare->dn = NULL;
 688         compare->resultcode = result;
 689         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 690         compare->referral = NULL;
 691
 692         talloc_free(local_ctx);
 693
 694         ldapsrv_queue_reply(call, compare_r);
 695         return NT_STATUS_OK;
 696 }
 697
 698 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 699 {
 700 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 701         DEBUG(10, ("AbandonRequest\n"));
 702         return NT_STATUS_OK;
 703 }
 704
 705 static NTSTATUS ldapsrv_ExtendedRequest(struct ldapsrv_call *call)
 706 {
 707 /*      struct ldap_ExtendedRequest *req = &call->request.r.ExtendedRequest;*/
 708         struct ldapsrv_reply *reply;
 709
 710         DEBUG(10, ("Extended\n"));
 711
 712         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 713         if (!reply) {
 714                 return NT_STATUS_NO_MEMORY;
 715         }
 716
 717         ZERO_STRUCT(reply->msg->r);
 718
 719         ldapsrv_queue_reply(call, reply);
 720         return NT_STATUS_OK;
 721 }
 722
 723 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 724 {
 725         switch(call->request->type) {
 726         case LDAP_TAG_BindRequest:
 727                 return ldapsrv_BindRequest(call);
 728         case LDAP_TAG_UnbindRequest:
 729                 return ldapsrv_UnbindRequest(call);
 730         case LDAP_TAG_SearchRequest:
 731                 return ldapsrv_SearchRequest(call);
 732         case LDAP_TAG_ModifyRequest:
 733                 return ldapsrv_ModifyRequest(call);
 734         case LDAP_TAG_AddRequest:
 735                 return ldapsrv_AddRequest(call);
 736         case LDAP_TAG_DelRequest:
 737                 return ldapsrv_DelRequest(call);
 738         case LDAP_TAG_ModifyDNRequest:
 739                 return ldapsrv_ModifyDNRequest(call);
 740         case LDAP_TAG_CompareRequest:
 741                 return ldapsrv_CompareRequest(call);
 742         case LDAP_TAG_AbandonRequest:
 743                 return ldapsrv_AbandonRequest(call);
 744         case LDAP_TAG_ExtendedRequest:
 745                 return ldapsrv_ExtendedRequest(call);
 746         default:
 747                 return ldapsrv_unwilling(call, 2);
 748         }
 749 }
 750
 751