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 3 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, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "ldap_server/ldap_server.h"
  22 #include "lib/util/dlinklist.h"
  23 #include "libcli/ldap/ldap.h"
  24 #include "lib/ldb/include/ldb.h"
  25 #include "lib/ldb/include/ldb_errors.h"
  26 #include "lib/db_wrap.h"
  27 #include "auth/credentials/credentials.h"
  28 #include "auth/gensec/gensec.h"
  29
  30 #define VALID_DN_SYNTAX(dn,i) do {\
  31         if (!(dn)) {\
  32                 return NT_STATUS_NO_MEMORY;\
  33         } else if ( ! ldb_dn_validate(dn)) {\
  34                 result = LDAP_INVALID_DN_SYNTAX;\
  35                 errstr = "Invalid DN format";\
  36                 goto reply;\
  37         } else if (ldb_dn_get_comp_num(dn) < (i)) {\
  38                 result = LDAP_INVALID_DN_SYNTAX;\
  39                 errstr = "Invalid DN (" #i " components needed for '" #dn "')";\
  40                 goto reply;\
  41         }\
  42 } while(0)
  43
  44 static int map_ldb_error(struct ldb_context *ldb, int err, const char **errstring)
  45 {
  46         *errstring = ldb_errstring(ldb);
  47
  48         /* its 1:1 for now */
  49         return err;
  50 }
  51
  52 /*
  53   connect to the sam database
  54 */
  55 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
  56 {
  57         conn->ldb = ldb_wrap_connect(conn, lp_sam_url(), conn->session_info,
  58                                      NULL, conn->global_catalog ? LDB_FLG_RDONLY : 0, NULL);
  59         if (conn->ldb == NULL) {
  60                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
  61         }
  62
  63         if (conn->server_credentials) {
  64                 char **sasl_mechs = NULL;
  65                 struct gensec_security_ops **backends = gensec_security_all();
  66                 enum credentials_use_kerberos use_kerberos
  67                         = cli_credentials_get_kerberos_state(conn->server_credentials);
  68                 struct gensec_security_ops **ops
  69                         = gensec_use_kerberos_mechs(conn, backends, use_kerberos);
  70                 int i, j = 0;
  71                 for (i = 0; ops && ops[i]; i++) {
  72                         if (ops[i]->sasl_name && ops[i]->server_start) {
  73                                 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
  74
  75                                 if (!sasl_name) {
  76                                         return NT_STATUS_NO_MEMORY;
  77                                 }
  78                                 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
  79                                 if (!sasl_mechs) {
  80                                         return NT_STATUS_NO_MEMORY;
  81                                 }
  82                                 sasl_mechs[j] = sasl_name;
  83                                 talloc_steal(sasl_mechs, sasl_name);
  84                                 sasl_mechs[j+1] = NULL;
  85                                 j++;
  86                         }
  87                 }
  88                 talloc_free(ops);
  89                 ldb_set_opaque(conn->ldb, "supportedSASLMechanims", sasl_mechs);
  90         }
  91
  92         return NT_STATUS_OK;
  93 }
  94
  95 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
  96 {
  97         struct ldapsrv_reply *reply;
  98
  99         reply = talloc(call, struct ldapsrv_reply);
 100         if (!reply) {
 101                 return NULL;
 102         }
 103         reply->msg = talloc(reply, struct ldap_message);
 104         if (reply->msg == NULL) {
 105                 talloc_free(reply);
 106                 return NULL;
 107         }
 108
 109         reply->msg->messageid = call->request->messageid;
 110         reply->msg->type = type;
 111         reply->msg->controls = NULL;
 112
 113         return reply;
 114 }
 115
 116 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
 117 {
 118         DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
 119 }
 120
 121 NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
 122 {
 123         struct ldapsrv_reply *reply;
 124         struct ldap_ExtendedResponse *r;
 125
 126         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
 127
 128         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 129         if (!reply) {
 130                 return NT_STATUS_NO_MEMORY;
 131         }
 132
 133         r = &reply->msg->r.ExtendedResponse;
 134         r->response.resultcode = error;
 135         r->response.dn = NULL;
 136         r->response.errormessage = NULL;
 137         r->response.referral = NULL;
 138         r->oid = NULL;
 139         r->value = NULL;
 140
 141         ldapsrv_queue_reply(call, reply);
 142         return NT_STATUS_OK;
 143 }
 144
 145 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 146 {
 147         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 148         struct ldap_SearchResEntry *ent;
 149         struct ldap_Result *done;
 150         struct ldapsrv_reply *ent_r, *done_r;
 151         void *local_ctx;
 152         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 153         struct ldb_dn *basedn;
 154         struct ldb_result *res = NULL;
 155         struct ldb_request *lreq;
 156         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 157         const char **attrs = NULL;
 158         const char *errstr = NULL;
 159         int success_limit = 1;
 160         int result = -1;
 161         int ldb_ret = -1;
 162         int i, j;
 163
 164         DEBUG(10, ("SearchRequest"));
 165         DEBUGADD(10, (" basedn: %s", req->basedn));
 166         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 167
 168         local_ctx = talloc_new(call);
 169         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 170
 171         basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
 172         VALID_DN_SYNTAX(basedn, 0);
 173
 174         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 175         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 176
 177         switch (req->scope) {
 178                 case LDAP_SEARCH_SCOPE_BASE:
 179                         DEBUG(10,("SearchRequest: scope: [BASE]\n"));
 180                         scope = LDB_SCOPE_BASE;
 181                         success_limit = 0;
 182                         break;
 183                 case LDAP_SEARCH_SCOPE_SINGLE:
 184                         DEBUG(10,("SearchRequest: scope: [ONE]\n"));
 185                         scope = LDB_SCOPE_ONELEVEL;
 186                         success_limit = 0;
 187                         break;
 188                 case LDAP_SEARCH_SCOPE_SUB:
 189                         DEBUG(10,("SearchRequest: scope: [SUB]\n"));
 190                         scope = LDB_SCOPE_SUBTREE;
 191                         success_limit = 0;
 192                         break;
 193                 default:
 194                         result = LDAP_PROTOCOL_ERROR;
 195                         errstr = "Invalid scope";
 196                         break;
 197         }
 198
 199         if (req->num_attributes >= 1) {
 200                 attrs = talloc_array(local_ctx, 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         lreq = talloc(local_ctx, struct ldb_request);
 214         NT_STATUS_HAVE_NO_MEMORY(lreq);
 215
 216         res = talloc_zero(local_ctx, struct ldb_result);
 217         NT_STATUS_HAVE_NO_MEMORY(res);
 218
 219         lreq->operation = LDB_SEARCH;
 220         lreq->op.search.base = basedn;
 221         lreq->op.search.scope = scope;
 222         lreq->op.search.tree = req->tree;
 223         lreq->op.search.attrs = attrs;
 224
 225         lreq->controls = call->request->controls;
 226
 227         if (call->conn->global_catalog) {
 228                 struct ldb_control *search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
 229
 230                 struct ldb_search_options_control *search_options = NULL;
 231                 if (search_control) {
 232                         search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
 233                         search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
 234                 } else {
 235                         search_options = talloc(lreq, struct ldb_search_options_control);
 236                         NT_STATUS_HAVE_NO_MEMORY(search_options);
 237                         search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
 238                         ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
 239                 }
 240         }
 241
 242         lreq->context = res;
 243         lreq->callback = ldb_search_default_callback;
 244
 245         /* Copy the timeout from the incoming call */
 246         ldb_set_timeout(samdb, lreq, req->timelimit);
 247
 248         ldb_ret = ldb_request(samdb, lreq);
 249
 250         if (ldb_ret != LDB_SUCCESS) {
 251                 goto reply;
 252         }
 253
 254         ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
 255
 256         if (ldb_ret == LDB_SUCCESS) {
 257                 for (i = 0; i < res->count; i++) {
 258                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 259                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 260
 261                         ent = &ent_r->msg->r.SearchResultEntry;
 262                         ent->dn = ldb_dn_alloc_linearized(ent_r, res->msgs[i]->dn);
 263                         ent->num_attributes = 0;
 264                         ent->attributes = NULL;
 265                         if (res->msgs[i]->num_elements == 0) {
 266                                 goto queue_reply;
 267                         }
 268                         ent->num_attributes = res->msgs[i]->num_elements;
 269                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 270                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 271                         for (j=0; j < ent->num_attributes; j++) {
 272                                 ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[i]->elements[j].name);
 273                                 ent->attributes[j].num_values = 0;
 274                                 ent->attributes[j].values = NULL;
 275                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 276                                         continue;
 277                                 }
 278                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 279                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 280                                 talloc_steal(ent->attributes, res->msgs[i]->elements[j].values);
 281                         }
 282 queue_reply:
 283                         ldapsrv_queue_reply(call, ent_r);
 284                 }
 285         }
 286
 287 reply:
 288         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 289         NT_STATUS_HAVE_NO_MEMORY(done_r);
 290
 291         done = &done_r->msg->r.SearchResultDone;
 292         done->dn = NULL;
 293         done->referral = NULL;
 294
 295         if (result != -1) {
 296         } else if (ldb_ret == LDB_SUCCESS) {
 297                 if (res->count >= success_limit) {
 298                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 299                         result = LDAP_SUCCESS;
 300                         errstr = NULL;
 301                 } else if (res->count == 0) {
 302                         DEBUG(10,("SearchRequest: no results\n"));
 303                         result = LDAP_NO_SUCH_OBJECT;
 304                         errstr = ldb_errstring(samdb);
 305                 }
 306                 if (res->controls) {
 307                         done_r->msg->controls = res->controls;
 308                         talloc_steal(done_r, res->controls);
 309                 }
 310         } else {
 311                 DEBUG(10,("SearchRequest: error\n"));
 312                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 313         }
 314
 315         done->resultcode = result;
 316         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 317
 318         talloc_free(local_ctx);
 319
 320         ldapsrv_queue_reply(call, done_r);
 321         return NT_STATUS_OK;
 322 }
 323
 324 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 325 {
 326         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 327         struct ldap_Result *modify_result;
 328         struct ldapsrv_reply *modify_reply;
 329         void *local_ctx;
 330         struct ldb_context *samdb = call->conn->ldb;
 331         struct ldb_message *msg = NULL;
 332         struct ldb_dn *dn;
 333         const char *errstr = NULL;
 334         int result = LDAP_SUCCESS;
 335         int ldb_ret;
 336         int i,j;
 337
 338         DEBUG(10, ("ModifyRequest"));
 339         DEBUGADD(10, (" dn: %s", req->dn));
 340
 341         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 342         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 343
 344         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 345         VALID_DN_SYNTAX(dn, 1);
 346
 347         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 348
 349         msg = talloc(local_ctx, struct ldb_message);
 350         NT_STATUS_HAVE_NO_MEMORY(msg);
 351
 352         msg->dn = dn;
 353         msg->num_elements = 0;
 354         msg->elements = NULL;
 355
 356         if (req->num_mods > 0) {
 357                 msg->num_elements = req->num_mods;
 358                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 359                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 360
 361                 for (i=0; i < msg->num_elements; i++) {
 362                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 363                         msg->elements[i].num_values = 0;
 364                         msg->elements[i].values = NULL;
 365
 366                         switch (req->mods[i].type) {
 367                         default:
 368                                 result = LDAP_PROTOCOL_ERROR;
 369                                 errstr = "Invalid LDAP_MODIFY_* type";
 370                                 goto reply;
 371                         case LDAP_MODIFY_ADD:
 372                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 373                                 break;
 374                         case LDAP_MODIFY_DELETE:
 375                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 376                                 break;
 377                         case LDAP_MODIFY_REPLACE:
 378                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 379                                 break;
 380                         }
 381
 382                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 383                         if (msg->elements[i].num_values > 0) {
 384                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 385                                                                        msg->elements[i].num_values);
 386                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 387
 388                                 for (j=0; j < msg->elements[i].num_values; j++) {
 389                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 390                                                 result = LDAP_OTHER;
 391                                                 errstr = "Empty attribute values are not allowed";
 392                                                 goto reply;
 393                                         }
 394                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 395                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 396                                 }
 397                         }
 398                 }
 399         } else {
 400                 result = LDAP_OTHER;
 401                 errstr = "No mods are not allowed";
 402                 goto reply;
 403         }
 404
 405 reply:
 406         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 407         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 408
 409         if (result == LDAP_SUCCESS) {
 410                 ldb_ret = ldb_modify(samdb, msg);
 411                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 412         }
 413
 414         modify_result = &modify_reply->msg->r.AddResponse;
 415         modify_result->dn = NULL;
 416         modify_result->resultcode = result;
 417         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 418         modify_result->referral = NULL;
 419
 420         talloc_free(local_ctx);
 421
 422         ldapsrv_queue_reply(call, modify_reply);
 423         return NT_STATUS_OK;
 424
 425 }
 426
 427 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 428 {
 429         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 430         struct ldap_Result *add_result;
 431         struct ldapsrv_reply *add_reply;
 432         void *local_ctx;
 433         struct ldb_context *samdb = call->conn->ldb;
 434         struct ldb_message *msg = NULL;
 435         struct ldb_dn *dn;
 436         const char *errstr = NULL;
 437         int result = LDAP_SUCCESS;
 438         int ldb_ret;
 439         int i,j;
 440
 441         DEBUG(10, ("AddRequest"));
 442         DEBUGADD(10, (" dn: %s", req->dn));
 443
 444         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 445         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 446
 447         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 448         VALID_DN_SYNTAX(dn,1);
 449
 450         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 451
 452         msg = talloc(local_ctx, struct ldb_message);
 453         NT_STATUS_HAVE_NO_MEMORY(msg);
 454
 455         msg->dn = dn;
 456         msg->num_elements = 0;
 457         msg->elements = NULL;
 458
 459         if (req->num_attributes > 0) {
 460                 msg->num_elements = req->num_attributes;
 461                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 462                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 463
 464                 for (i=0; i < msg->num_elements; i++) {
 465                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 466                         msg->elements[i].flags = 0;
 467                         msg->elements[i].num_values = 0;
 468                         msg->elements[i].values = NULL;
 469
 470                         if (req->attributes[i].num_values > 0) {
 471                                 msg->elements[i].num_values = req->attributes[i].num_values;
 472                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 473                                                                        msg->elements[i].num_values);
 474                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 475
 476                                 for (j=0; j < msg->elements[i].num_values; j++) {
 477                                         if (!(req->attributes[i].values[j].length > 0)) {
 478                                                 result = LDAP_OTHER;
 479                                                 errstr = "Empty attribute values are not allowed";
 480                                                 goto reply;
 481                                         }
 482                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 483                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 484                                 }
 485                         } else {
 486                                 result = LDAP_OTHER;
 487                                 errstr = "No attribute values are not allowed";
 488                                 goto reply;
 489                         }
 490                 }
 491         } else {
 492                 result = LDAP_OTHER;
 493                 errstr = "No attributes are not allowed";
 494                 goto reply;
 495         }
 496
 497 reply:
 498         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 499         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 500
 501         if (result == LDAP_SUCCESS) {
 502                 ldb_ret = ldb_add(samdb, msg);
 503                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 504         }
 505
 506         add_result = &add_reply->msg->r.AddResponse;
 507         add_result->dn = NULL;
 508         add_result->resultcode = result;
 509         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 510         add_result->referral = NULL;
 511
 512         talloc_free(local_ctx);
 513
 514         ldapsrv_queue_reply(call, add_reply);
 515         return NT_STATUS_OK;
 516
 517 }
 518
 519 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 520 {
 521         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 522         struct ldap_Result *del_result;
 523         struct ldapsrv_reply *del_reply;
 524         void *local_ctx;
 525         struct ldb_context *samdb = call->conn->ldb;
 526         struct ldb_dn *dn;
 527         const char *errstr = NULL;
 528         int result = LDAP_SUCCESS;
 529         int ldb_ret;
 530
 531         DEBUG(10, ("DelRequest"));
 532         DEBUGADD(10, (" dn: %s", req->dn));
 533
 534         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 535         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 536
 537         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 538         VALID_DN_SYNTAX(dn,1);
 539
 540         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 541
 542 reply:
 543         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 544         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 545
 546         if (result == LDAP_SUCCESS) {
 547                 ldb_ret = ldb_delete(samdb, dn);
 548                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 549         }
 550
 551         del_result = &del_reply->msg->r.DelResponse;
 552         del_result->dn = NULL;
 553         del_result->resultcode = result;
 554         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 555         del_result->referral = NULL;
 556
 557         talloc_free(local_ctx);
 558
 559         ldapsrv_queue_reply(call, del_reply);
 560         return NT_STATUS_OK;
 561 }
 562
 563 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 564 {
 565         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 566         struct ldap_Result *modifydn;
 567         struct ldapsrv_reply *modifydn_r;
 568         void *local_ctx;
 569         struct ldb_context *samdb = call->conn->ldb;
 570         struct ldb_dn *olddn, *newdn=NULL, *newrdn;
 571         struct ldb_dn *parentdn = NULL;
 572         const char *errstr = NULL;
 573         int result = LDAP_SUCCESS;
 574         int ldb_ret;
 575
 576         DEBUG(10, ("ModifyDNRequrest"));
 577         DEBUGADD(10, (" dn: %s", req->dn));
 578         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 579
 580         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 581         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 582
 583         olddn = ldb_dn_new(local_ctx, samdb, req->dn);
 584         VALID_DN_SYNTAX(olddn, 2);
 585
 586         newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
 587         VALID_DN_SYNTAX(newrdn, 1);
 588
 589         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 590         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 591
 592         /* we can't handle the rename if we should not remove the old dn */
 593         if (!req->deleteolddn) {
 594                 result = LDAP_UNWILLING_TO_PERFORM;
 595                 errstr = "Old RDN must be deleted";
 596                 goto reply;
 597         }
 598
 599         if (req->newsuperior) {
 600                 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
 601                 VALID_DN_SYNTAX(parentdn, 0);
 602                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 603
 604                 if (ldb_dn_get_comp_num(parentdn) < 1) {
 605                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 606                         errstr = "Error new Superior DN invalid";
 607                         goto reply;
 608                 }
 609         }
 610
 611         if (!parentdn) {
 612                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 613                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 614         }
 615
 616         if ( ! ldb_dn_add_child_fmt(parentdn,
 617                                 "%s=%s",
 618                                 ldb_dn_get_rdn_name(newrdn),
 619                                 (char *)ldb_dn_get_rdn_val(newrdn)->data)) {
 620                 result = LDAP_OTHER;
 621                 goto reply;
 622         }
 623         newdn = parentdn;
 624
 625 reply:
 626         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 627         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 628
 629         if (result == LDAP_SUCCESS) {
 630                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 631                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 632         }
 633
 634         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 635         modifydn->dn = NULL;
 636         modifydn->resultcode = result;
 637         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 638         modifydn->referral = NULL;
 639
 640         talloc_free(local_ctx);
 641
 642         ldapsrv_queue_reply(call, modifydn_r);
 643         return NT_STATUS_OK;
 644 }
 645
 646 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 647 {
 648         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 649         struct ldap_Result *compare;
 650         struct ldapsrv_reply *compare_r;
 651         void *local_ctx;
 652         struct ldb_context *samdb = call->conn->ldb;
 653         struct ldb_result *res = NULL;
 654         struct ldb_dn *dn;
 655         const char *attrs[1];
 656         const char *errstr = NULL;
 657         const char *filter = NULL;
 658         int result = LDAP_SUCCESS;
 659         int ldb_ret;
 660
 661         DEBUG(10, ("CompareRequest"));
 662         DEBUGADD(10, (" dn: %s", req->dn));
 663
 664         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 665         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 666
 667         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 668         VALID_DN_SYNTAX(dn, 1);
 669
 670         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 671         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 672                                  (int)req->value.length, req->value.data);
 673         NT_STATUS_HAVE_NO_MEMORY(filter);
 674
 675         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 676
 677         attrs[0] = NULL;
 678
 679 reply:
 680         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 681         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 682
 683         if (result == LDAP_SUCCESS) {
 684                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 685                 talloc_steal(local_ctx, res);
 686                 if (ldb_ret != LDB_SUCCESS) {
 687                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 688                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 689                 } else if (res->count == 0) {
 690                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 691                         result = LDAP_COMPARE_FALSE;
 692                         errstr = NULL;
 693                 } else if (res->count == 1) {
 694                         DEBUG(10,("CompareRequest: matched\n"));
 695                         result = LDAP_COMPARE_TRUE;
 696                         errstr = NULL;
 697                 } else if (res->count > 1) {
 698                         result = LDAP_OTHER;
 699                         errstr = "too many objects match";
 700                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 701                 }
 702         }
 703
 704         compare = &compare_r->msg->r.CompareResponse;
 705         compare->dn = NULL;
 706         compare->resultcode = result;
 707         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 708         compare->referral = NULL;
 709
 710         talloc_free(local_ctx);
 711
 712         ldapsrv_queue_reply(call, compare_r);
 713         return NT_STATUS_OK;
 714 }
 715
 716 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 717 {
 718 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 719         DEBUG(10, ("AbandonRequest\n"));
 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 }