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 "lib/util/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 "lib/db_wrap.h"
  28 #include "auth/credentials/credentials.h"
  29 #include "auth/gensec/gensec.h"
  30
  31 #define VALID_DN_SYNTAX(dn,i) do {\
  32         if (!(dn)) {\
  33                 return NT_STATUS_NO_MEMORY;\
  34         } else if ( ! ldb_dn_validate(dn)) {\
  35                 result = LDAP_INVALID_DN_SYNTAX;\
  36                 errstr = "Invalid DN format";\
  37                 goto reply;\
  38         } else if (ldb_dn_get_comp_num(dn) < (i)) {\
  39                 result = LDAP_INVALID_DN_SYNTAX;\
  40                 errstr = "Invalid DN (" #i " components needed for '" #dn "')";\
  41                 goto reply;\
  42         }\
  43 } while(0)
  44
  45 static int map_ldb_error(struct ldb_context *ldb, int err, const char **errstring)
  46 {
  47         *errstring = ldb_errstring(ldb);
  48
  49         /* its 1:1 for now */
  50         return err;
  51 }
  52
  53 /*
  54   connect to the sam database
  55 */
  56 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
  57 {
  58         conn->ldb = ldb_wrap_connect(conn, lp_sam_url(), conn->session_info,
  59                                      NULL, conn->global_catalog ? LDB_FLG_RDONLY : 0, NULL);
  60         if (conn->ldb == NULL) {
  61                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
  62         }
  63
  64         if (conn->server_credentials) {
  65                 char **sasl_mechs = NULL;
  66                 struct gensec_security_ops **backends = gensec_security_all();
  67                 enum credentials_use_kerberos use_kerberos
  68                         = cli_credentials_get_kerberos_state(conn->server_credentials);
  69                 struct gensec_security_ops **ops
  70                         = gensec_use_kerberos_mechs(conn, backends, use_kerberos);
  71                 int i, j = 0;
  72                 for (i = 0; ops && ops[i]; i++) {
  73                         if (ops[i]->sasl_name && ops[i]->server_start) {
  74                                 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
  75
  76                                 if (!sasl_name) {
  77                                         return NT_STATUS_NO_MEMORY;
  78                                 }
  79                                 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
  80                                 if (!sasl_mechs) {
  81                                         return NT_STATUS_NO_MEMORY;
  82                                 }
  83                                 sasl_mechs[j] = sasl_name;
  84                                 talloc_steal(sasl_mechs, sasl_name);
  85                                 sasl_mechs[j+1] = NULL;
  86                                 j++;
  87                         }
  88                 }
  89                 talloc_free(ops);
  90                 ldb_set_opaque(conn->ldb, "supportedSASLMechanims", sasl_mechs);
  91         }
  92
  93         return NT_STATUS_OK;
  94 }
  95
  96 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
  97 {
  98         struct ldapsrv_reply *reply;
  99
 100         reply = talloc(call, struct ldapsrv_reply);
 101         if (!reply) {
 102                 return NULL;
 103         }
 104         reply->msg = talloc(reply, struct ldap_message);
 105         if (reply->msg == NULL) {
 106                 talloc_free(reply);
 107                 return NULL;
 108         }
 109
 110         reply->msg->messageid = call->request->messageid;
 111         reply->msg->type = type;
 112         reply->msg->controls = NULL;
 113
 114         return reply;
 115 }
 116
 117 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
 118 {
 119         DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
 120 }
 121
 122 NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
 123 {
 124         struct ldapsrv_reply *reply;
 125         struct ldap_ExtendedResponse *r;
 126
 127         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
 128
 129         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 130         if (!reply) {
 131                 return NT_STATUS_NO_MEMORY;
 132         }
 133
 134         r = &reply->msg->r.ExtendedResponse;
 135         r->response.resultcode = error;
 136         r->response.dn = NULL;
 137         r->response.errormessage = NULL;
 138         r->response.referral = NULL;
 139         r->oid = NULL;
 140         r->value = NULL;
 141
 142         ldapsrv_queue_reply(call, reply);
 143         return NT_STATUS_OK;
 144 }
 145
 146 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 147 {
 148         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 149         struct ldap_SearchResEntry *ent;
 150         struct ldap_Result *done;
 151         struct ldapsrv_reply *ent_r, *done_r;
 152         void *local_ctx;
 153         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 154         struct ldb_dn *basedn;
 155         struct ldb_result *res = NULL;
 156         struct ldb_request *lreq;
 157         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 158         const char **attrs = NULL;
 159         const char *errstr = NULL;
 160         int success_limit = 1;
 161         int result = -1;
 162         int ldb_ret = -1;
 163         int i, j;
 164
 165         DEBUG(10, ("SearchRequest"));
 166         DEBUGADD(10, (" basedn: %s", req->basedn));
 167         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 168
 169         local_ctx = talloc_new(call);
 170         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 171
 172         basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
 173         VALID_DN_SYNTAX(basedn, 0);
 174
 175         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 176         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 177
 178         switch (req->scope) {
 179                 case LDAP_SEARCH_SCOPE_BASE:
 180                         DEBUG(10,("SearchRequest: scope: [BASE]\n"));
 181                         scope = LDB_SCOPE_BASE;
 182                         success_limit = 0;
 183                         break;
 184                 case LDAP_SEARCH_SCOPE_SINGLE:
 185                         DEBUG(10,("SearchRequest: scope: [ONE]\n"));
 186                         scope = LDB_SCOPE_ONELEVEL;
 187                         success_limit = 0;
 188                         break;
 189                 case LDAP_SEARCH_SCOPE_SUB:
 190                         DEBUG(10,("SearchRequest: scope: [SUB]\n"));
 191                         scope = LDB_SCOPE_SUBTREE;
 192                         success_limit = 0;
 193                         break;
 194                 default:
 195                         result = LDAP_PROTOCOL_ERROR;
 196                         errstr = "Invalid scope";
 197                         break;
 198         }
 199
 200         if (req->num_attributes >= 1) {
 201                 attrs = talloc_array(local_ctx, 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         lreq = talloc(local_ctx, struct ldb_request);
 215         NT_STATUS_HAVE_NO_MEMORY(lreq);
 216
 217         res = talloc_zero(local_ctx, struct ldb_result);
 218         NT_STATUS_HAVE_NO_MEMORY(res);
 219
 220         lreq->operation = LDB_SEARCH;
 221         lreq->op.search.base = basedn;
 222         lreq->op.search.scope = scope;
 223         lreq->op.search.tree = req->tree;
 224         lreq->op.search.attrs = attrs;
 225
 226         lreq->controls = call->request->controls;
 227
 228         if (call->conn->global_catalog) {
 229                 struct ldb_control *search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
 230
 231                 struct ldb_search_options_control *search_options = NULL;
 232                 if (search_control) {
 233                         search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
 234                         search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
 235                 } else {
 236                         search_options = talloc(lreq, struct ldb_search_options_control);
 237                         NT_STATUS_HAVE_NO_MEMORY(search_options);
 238                         search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
 239                         ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
 240                 }
 241         }
 242
 243         lreq->context = res;
 244         lreq->callback = ldb_search_default_callback;
 245
 246         /* Copy the timeout from the incoming call */
 247         ldb_set_timeout(samdb, lreq, req->timelimit);
 248
 249         ldb_ret = ldb_request(samdb, lreq);
 250
 251         if (ldb_ret != LDB_SUCCESS) {
 252                 goto reply;
 253         }
 254
 255         ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
 256
 257         if (ldb_ret == LDB_SUCCESS) {
 258                 for (i = 0; i < res->count; i++) {
 259                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 260                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 261
 262                         ent = &ent_r->msg->r.SearchResultEntry;
 263                         ent->dn = ldb_dn_alloc_linearized(ent_r, res->msgs[i]->dn);
 264                         ent->num_attributes = 0;
 265                         ent->attributes = NULL;
 266                         if (res->msgs[i]->num_elements == 0) {
 267                                 goto queue_reply;
 268                         }
 269                         ent->num_attributes = res->msgs[i]->num_elements;
 270                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 271                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 272                         for (j=0; j < ent->num_attributes; j++) {
 273                                 ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[i]->elements[j].name);
 274                                 ent->attributes[j].num_values = 0;
 275                                 ent->attributes[j].values = NULL;
 276                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 277                                         continue;
 278                                 }
 279                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 280                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 281                                 talloc_steal(ent->attributes, res->msgs[i]->elements[j].values);
 282                         }
 283 queue_reply:
 284                         ldapsrv_queue_reply(call, ent_r);
 285                 }
 286         }
 287
 288 reply:
 289         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 290         NT_STATUS_HAVE_NO_MEMORY(done_r);
 291
 292         done = &done_r->msg->r.SearchResultDone;
 293         done->dn = NULL;
 294         done->referral = NULL;
 295
 296         if (result != -1) {
 297         } else if (ldb_ret == LDB_SUCCESS) {
 298                 if (res->count >= success_limit) {
 299                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 300                         result = LDAP_SUCCESS;
 301                         errstr = NULL;
 302                 } else if (res->count == 0) {
 303                         DEBUG(10,("SearchRequest: no results\n"));
 304                         result = LDAP_NO_SUCH_OBJECT;
 305                         errstr = ldb_errstring(samdb);
 306                 }
 307                 if (res->controls) {
 308                         done_r->msg->controls = res->controls;
 309                         talloc_steal(done_r, res->controls);
 310                 }
 311         } else {
 312                 DEBUG(10,("SearchRequest: error\n"));
 313                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 314         }
 315
 316         done->resultcode = result;
 317         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 318
 319         talloc_free(local_ctx);
 320
 321         ldapsrv_queue_reply(call, done_r);
 322         return NT_STATUS_OK;
 323 }
 324
 325 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 326 {
 327         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 328         struct ldap_Result *modify_result;
 329         struct ldapsrv_reply *modify_reply;
 330         void *local_ctx;
 331         struct ldb_context *samdb = call->conn->ldb;
 332         struct ldb_message *msg = NULL;
 333         struct ldb_dn *dn;
 334         const char *errstr = NULL;
 335         int result = LDAP_SUCCESS;
 336         int ldb_ret;
 337         int i,j;
 338
 339         DEBUG(10, ("ModifyRequest"));
 340         DEBUGADD(10, (" dn: %s", req->dn));
 341
 342         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 343         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 344
 345         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 346         VALID_DN_SYNTAX(dn, 1);
 347
 348         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 349
 350         msg = talloc(local_ctx, struct ldb_message);
 351         NT_STATUS_HAVE_NO_MEMORY(msg);
 352
 353         msg->dn = dn;
 354         msg->num_elements = 0;
 355         msg->elements = NULL;
 356
 357         if (req->num_mods > 0) {
 358                 msg->num_elements = req->num_mods;
 359                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 360                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 361
 362                 for (i=0; i < msg->num_elements; i++) {
 363                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 364                         msg->elements[i].num_values = 0;
 365                         msg->elements[i].values = NULL;
 366
 367                         switch (req->mods[i].type) {
 368                         default:
 369                                 result = LDAP_PROTOCOL_ERROR;
 370                                 errstr = "Invalid LDAP_MODIFY_* type";
 371                                 goto reply;
 372                         case LDAP_MODIFY_ADD:
 373                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 374                                 break;
 375                         case LDAP_MODIFY_DELETE:
 376                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 377                                 break;
 378                         case LDAP_MODIFY_REPLACE:
 379                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 380                                 break;
 381                         }
 382
 383                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 384                         if (msg->elements[i].num_values > 0) {
 385                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 386                                                                        msg->elements[i].num_values);
 387                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 388
 389                                 for (j=0; j < msg->elements[i].num_values; j++) {
 390                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 391                                                 result = LDAP_OTHER;
 392                                                 errstr = "Empty attribute values are not allowed";
 393                                                 goto reply;
 394                                         }
 395                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 396                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 397                                 }
 398                         }
 399                 }
 400         } else {
 401                 result = LDAP_OTHER;
 402                 errstr = "No mods are not allowed";
 403                 goto reply;
 404         }
 405
 406 reply:
 407         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 408         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 409
 410         if (result == LDAP_SUCCESS) {
 411                 ldb_ret = ldb_modify(samdb, msg);
 412                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 413         }
 414
 415         modify_result = &modify_reply->msg->r.AddResponse;
 416         modify_result->dn = NULL;
 417         modify_result->resultcode = result;
 418         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 419         modify_result->referral = NULL;
 420
 421         talloc_free(local_ctx);
 422
 423         ldapsrv_queue_reply(call, modify_reply);
 424         return NT_STATUS_OK;
 425
 426 }
 427
 428 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 429 {
 430         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 431         struct ldap_Result *add_result;
 432         struct ldapsrv_reply *add_reply;
 433         void *local_ctx;
 434         struct ldb_context *samdb = call->conn->ldb;
 435         struct ldb_message *msg = NULL;
 436         struct ldb_dn *dn;
 437         const char *errstr = NULL;
 438         int result = LDAP_SUCCESS;
 439         int ldb_ret;
 440         int i,j;
 441
 442         DEBUG(10, ("AddRequest"));
 443         DEBUGADD(10, (" dn: %s", req->dn));
 444
 445         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 446         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 447
 448         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 449         VALID_DN_SYNTAX(dn,1);
 450
 451         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 452
 453         msg = talloc(local_ctx, struct ldb_message);
 454         NT_STATUS_HAVE_NO_MEMORY(msg);
 455
 456         msg->dn = dn;
 457         msg->num_elements = 0;
 458         msg->elements = NULL;
 459
 460         if (req->num_attributes > 0) {
 461                 msg->num_elements = req->num_attributes;
 462                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 463                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 464
 465                 for (i=0; i < msg->num_elements; i++) {
 466                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 467                         msg->elements[i].flags = 0;
 468                         msg->elements[i].num_values = 0;
 469                         msg->elements[i].values = NULL;
 470
 471                         if (req->attributes[i].num_values > 0) {
 472                                 msg->elements[i].num_values = req->attributes[i].num_values;
 473                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 474                                                                        msg->elements[i].num_values);
 475                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 476
 477                                 for (j=0; j < msg->elements[i].num_values; j++) {
 478                                         if (!(req->attributes[i].values[j].length > 0)) {
 479                                                 result = LDAP_OTHER;
 480                                                 errstr = "Empty attribute values are not allowed";
 481                                                 goto reply;
 482                                         }
 483                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 484                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 485                                 }
 486                         } else {
 487                                 result = LDAP_OTHER;
 488                                 errstr = "No attribute values are not allowed";
 489                                 goto reply;
 490                         }
 491                 }
 492         } else {
 493                 result = LDAP_OTHER;
 494                 errstr = "No attributes are not allowed";
 495                 goto reply;
 496         }
 497
 498 reply:
 499         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 500         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 501
 502         if (result == LDAP_SUCCESS) {
 503                 ldb_ret = ldb_add(samdb, msg);
 504                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 505         }
 506
 507         add_result = &add_reply->msg->r.AddResponse;
 508         add_result->dn = NULL;
 509         add_result->resultcode = result;
 510         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 511         add_result->referral = NULL;
 512
 513         talloc_free(local_ctx);
 514
 515         ldapsrv_queue_reply(call, add_reply);
 516         return NT_STATUS_OK;
 517
 518 }
 519
 520 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 521 {
 522         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 523         struct ldap_Result *del_result;
 524         struct ldapsrv_reply *del_reply;
 525         void *local_ctx;
 526         struct ldb_context *samdb = call->conn->ldb;
 527         struct ldb_dn *dn;
 528         const char *errstr = NULL;
 529         int result = LDAP_SUCCESS;
 530         int ldb_ret;
 531
 532         DEBUG(10, ("DelRequest"));
 533         DEBUGADD(10, (" dn: %s", req->dn));
 534
 535         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 536         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 537
 538         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 539         VALID_DN_SYNTAX(dn,1);
 540
 541         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 542
 543 reply:
 544         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 545         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 546
 547         if (result == LDAP_SUCCESS) {
 548                 ldb_ret = ldb_delete(samdb, dn);
 549                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 550         }
 551
 552         del_result = &del_reply->msg->r.DelResponse;
 553         del_result->dn = NULL;
 554         del_result->resultcode = result;
 555         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 556         del_result->referral = NULL;
 557
 558         talloc_free(local_ctx);
 559
 560         ldapsrv_queue_reply(call, del_reply);
 561         return NT_STATUS_OK;
 562 }
 563
 564 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 565 {
 566         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 567         struct ldap_Result *modifydn;
 568         struct ldapsrv_reply *modifydn_r;
 569         void *local_ctx;
 570         struct ldb_context *samdb = call->conn->ldb;
 571         struct ldb_dn *olddn, *newdn=NULL, *newrdn;
 572         struct ldb_dn *parentdn = NULL;
 573         const char *errstr = NULL;
 574         int result = LDAP_SUCCESS;
 575         int ldb_ret;
 576
 577         DEBUG(10, ("ModifyDNRequrest"));
 578         DEBUGADD(10, (" dn: %s", req->dn));
 579         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 580
 581         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 582         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 583
 584         olddn = ldb_dn_new(local_ctx, samdb, req->dn);
 585         VALID_DN_SYNTAX(olddn, 2);
 586
 587         newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
 588         VALID_DN_SYNTAX(newrdn, 1);
 589
 590         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 591         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 592
 593         /* we can't handle the rename if we should not remove the old dn */
 594         if (!req->deleteolddn) {
 595                 result = LDAP_UNWILLING_TO_PERFORM;
 596                 errstr = "Old RDN must be deleted";
 597                 goto reply;
 598         }
 599
 600         if (req->newsuperior) {
 601                 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
 602                 VALID_DN_SYNTAX(parentdn, 0);
 603                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 604
 605                 if (ldb_dn_get_comp_num(parentdn) < 1) {
 606                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 607                         errstr = "Error new Superior DN invalid";
 608                         goto reply;
 609                 }
 610         }
 611
 612         if (!parentdn) {
 613                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 614                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 615         }
 616
 617         if ( ! ldb_dn_add_child_fmt(parentdn,
 618                                 "%s=%s",
 619                                 ldb_dn_get_rdn_name(newrdn),
 620                                 (char *)ldb_dn_get_rdn_val(newrdn)->data)) {
 621                 result = LDAP_OTHER;
 622                 goto reply;
 623         }
 624         newdn = parentdn;
 625
 626 reply:
 627         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 628         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 629
 630         if (result == LDAP_SUCCESS) {
 631                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 632                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 633         }
 634
 635         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 636         modifydn->dn = NULL;
 637         modifydn->resultcode = result;
 638         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 639         modifydn->referral = NULL;
 640
 641         talloc_free(local_ctx);
 642
 643         ldapsrv_queue_reply(call, modifydn_r);
 644         return NT_STATUS_OK;
 645 }
 646
 647 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 648 {
 649         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 650         struct ldap_Result *compare;
 651         struct ldapsrv_reply *compare_r;
 652         void *local_ctx;
 653         struct ldb_context *samdb = call->conn->ldb;
 654         struct ldb_result *res = NULL;
 655         struct ldb_dn *dn;
 656         const char *attrs[1];
 657         const char *errstr = NULL;
 658         const char *filter = NULL;
 659         int result = LDAP_SUCCESS;
 660         int ldb_ret;
 661
 662         DEBUG(10, ("CompareRequest"));
 663         DEBUGADD(10, (" dn: %s", req->dn));
 664
 665         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 666         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 667
 668         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 669         VALID_DN_SYNTAX(dn, 1);
 670
 671         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 672         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 673                                  (int)req->value.length, req->value.data);
 674         NT_STATUS_HAVE_NO_MEMORY(filter);
 675
 676         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 677
 678         attrs[0] = NULL;
 679
 680 reply:
 681         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 682         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 683
 684         if (result == LDAP_SUCCESS) {
 685                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 686                 talloc_steal(local_ctx, res);
 687                 if (ldb_ret != LDB_SUCCESS) {
 688                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 689                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 690                 } else if (res->count == 0) {
 691                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 692                         result = LDAP_COMPARE_FALSE;
 693                         errstr = NULL;
 694                 } else if (res->count == 1) {
 695                         DEBUG(10,("CompareRequest: matched\n"));
 696                         result = LDAP_COMPARE_TRUE;
 697                         errstr = NULL;
 698                 } else if (res->count > 1) {
 699                         result = LDAP_OTHER;
 700                         errstr = "too many objects match";
 701                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 702                 }
 703         }
 704
 705         compare = &compare_r->msg->r.CompareResponse;
 706         compare->dn = NULL;
 707         compare->resultcode = result;
 708         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 709         compare->referral = NULL;
 710
 711         talloc_free(local_ctx);
 712
 713         ldapsrv_queue_reply(call, compare_r);
 714         return NT_STATUS_OK;
 715 }
 716
 717 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 718 {
 719 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 720         DEBUG(10, ("AbandonRequest\n"));
 721         return NT_STATUS_OK;
 722 }
 723
 724 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 725 {
 726         switch(call->request->type) {
 727         case LDAP_TAG_BindRequest:
 728                 return ldapsrv_BindRequest(call);
 729         case LDAP_TAG_UnbindRequest:
 730                 return ldapsrv_UnbindRequest(call);
 731         case LDAP_TAG_SearchRequest:
 732                 return ldapsrv_SearchRequest(call);
 733         case LDAP_TAG_ModifyRequest:
 734                 return ldapsrv_ModifyRequest(call);
 735         case LDAP_TAG_AddRequest:
 736                 return ldapsrv_AddRequest(call);
 737         case LDAP_TAG_DelRequest:
 738                 return ldapsrv_DelRequest(call);
 739         case LDAP_TAG_ModifyDNRequest:
 740                 return ldapsrv_ModifyDNRequest(call);
 741         case LDAP_TAG_CompareRequest:
 742                 return ldapsrv_CompareRequest(call);
 743         case LDAP_TAG_AbandonRequest:
 744                 return ldapsrv_AbandonRequest(call);
 745         case LDAP_TAG_ExtendedRequest:
 746                 return ldapsrv_ExtendedRequest(call);
 747         default:
 748                 return ldapsrv_unwilling(call, 2);
 749         }
 750 }