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 #include "param/param.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 static 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 *scope_str, *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                         scope_str = "BASE";
 181                         scope = LDB_SCOPE_BASE;
 182                         success_limit = 0;
 183                         break;
 184                 case LDAP_SEARCH_SCOPE_SINGLE:
 185                         scope_str = "ONE";
 186                         scope = LDB_SCOPE_ONELEVEL;
 187                         success_limit = 0;
 188                         break;
 189                 case LDAP_SEARCH_SCOPE_SUB:
 190                         scope_str = "SUB";
 191                         scope = LDB_SCOPE_SUBTREE;
 192                         success_limit = 0;
 193                         break;
 194                 default:
 195                         result = LDAP_PROTOCOL_ERROR;
 196                         errstr = "Invalid scope";
 197                         goto reply;
 198         }
 199         DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
 200
 201         if (req->num_attributes >= 1) {
 202                 attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
 203                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 204
 205                 for (i=0; i < req->num_attributes; i++) {
 206                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 207                         attrs[i] = req->attributes[i];
 208                 }
 209                 attrs[i] = NULL;
 210         }
 211
 212         DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
 213                  scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
 214
 215         lreq = talloc(local_ctx, struct ldb_request);
 216         NT_STATUS_HAVE_NO_MEMORY(lreq);
 217
 218         res = talloc_zero(local_ctx, struct ldb_result);
 219         NT_STATUS_HAVE_NO_MEMORY(res);
 220
 221         lreq->operation = LDB_SEARCH;
 222         lreq->op.search.base = basedn;
 223         lreq->op.search.scope = scope;
 224         lreq->op.search.tree = req->tree;
 225         lreq->op.search.attrs = attrs;
 226
 227         lreq->controls = call->request->controls;
 228
 229         if (call->conn->global_catalog) {
 230                 struct ldb_control *search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
 231
 232                 struct ldb_search_options_control *search_options = NULL;
 233                 if (search_control) {
 234                         search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
 235                         search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
 236                 } else {
 237                         search_options = talloc(lreq, struct ldb_search_options_control);
 238                         NT_STATUS_HAVE_NO_MEMORY(search_options);
 239                         search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
 240                         ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
 241                 }
 242         }
 243
 244         lreq->context = res;
 245         lreq->callback = ldb_search_default_callback;
 246
 247         /* Copy the timeout from the incoming call */
 248         ldb_set_timeout(samdb, lreq, req->timelimit);
 249
 250         ldb_ret = ldb_request(samdb, lreq);
 251
 252         if (ldb_ret != LDB_SUCCESS) {
 253                 goto reply;
 254         }
 255
 256         ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
 257
 258         if (ldb_ret == LDB_SUCCESS) {
 259                 for (i = 0; i < res->count; i++) {
 260                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 261                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 262
 263                         ent = &ent_r->msg->r.SearchResultEntry;
 264                         ent->dn = ldb_dn_alloc_linearized(ent_r, res->msgs[i]->dn);
 265                         ent->num_attributes = 0;
 266                         ent->attributes = NULL;
 267                         if (res->msgs[i]->num_elements == 0) {
 268                                 goto queue_reply;
 269                         }
 270                         ent->num_attributes = res->msgs[i]->num_elements;
 271                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 272                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 273                         for (j=0; j < ent->num_attributes; j++) {
 274                                 ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[i]->elements[j].name);
 275                                 ent->attributes[j].num_values = 0;
 276                                 ent->attributes[j].values = NULL;
 277                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 278                                         continue;
 279                                 }
 280                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 281                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 282                                 talloc_steal(ent->attributes, res->msgs[i]->elements[j].values);
 283                         }
 284 queue_reply:
 285                         ldapsrv_queue_reply(call, ent_r);
 286                 }
 287         }
 288
 289 reply:
 290         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 291         NT_STATUS_HAVE_NO_MEMORY(done_r);
 292
 293         done = &done_r->msg->r.SearchResultDone;
 294         done->dn = NULL;
 295         done->referral = NULL;
 296
 297         if (result != -1) {
 298         } else if (ldb_ret == LDB_SUCCESS) {
 299                 if (res->count >= success_limit) {
 300                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 301                         result = LDAP_SUCCESS;
 302                         errstr = NULL;
 303                 } else if (res->count == 0) {
 304                         DEBUG(10,("SearchRequest: no results\n"));
 305                         result = LDAP_NO_SUCH_OBJECT;
 306                         errstr = ldb_errstring(samdb);
 307                 }
 308                 if (res->controls) {
 309                         done_r->msg->controls = res->controls;
 310                         talloc_steal(done_r, res->controls);
 311                 }
 312         } else {
 313                 DEBUG(10,("SearchRequest: error\n"));
 314                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 315         }
 316
 317         done->resultcode = result;
 318         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 319
 320         talloc_free(local_ctx);
 321
 322         ldapsrv_queue_reply(call, done_r);
 323         return NT_STATUS_OK;
 324 }
 325
 326 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 327 {
 328         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 329         struct ldap_Result *modify_result;
 330         struct ldapsrv_reply *modify_reply;
 331         void *local_ctx;
 332         struct ldb_context *samdb = call->conn->ldb;
 333         struct ldb_message *msg = NULL;
 334         struct ldb_dn *dn;
 335         const char *errstr = NULL;
 336         int result = LDAP_SUCCESS;
 337         int ldb_ret;
 338         int i,j;
 339
 340         DEBUG(10, ("ModifyRequest"));
 341         DEBUGADD(10, (" dn: %s", req->dn));
 342
 343         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 344         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 345
 346         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 347         VALID_DN_SYNTAX(dn, 1);
 348
 349         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 350
 351         msg = talloc(local_ctx, struct ldb_message);
 352         NT_STATUS_HAVE_NO_MEMORY(msg);
 353
 354         msg->dn = dn;
 355         msg->num_elements = 0;
 356         msg->elements = NULL;
 357
 358         if (req->num_mods > 0) {
 359                 msg->num_elements = req->num_mods;
 360                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 361                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 362
 363                 for (i=0; i < msg->num_elements; i++) {
 364                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 365                         msg->elements[i].num_values = 0;
 366                         msg->elements[i].values = NULL;
 367
 368                         switch (req->mods[i].type) {
 369                         default:
 370                                 result = LDAP_PROTOCOL_ERROR;
 371                                 errstr = "Invalid LDAP_MODIFY_* type";
 372                                 goto reply;
 373                         case LDAP_MODIFY_ADD:
 374                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 375                                 break;
 376                         case LDAP_MODIFY_DELETE:
 377                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 378                                 break;
 379                         case LDAP_MODIFY_REPLACE:
 380                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 381                                 break;
 382                         }
 383
 384                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 385                         if (msg->elements[i].num_values > 0) {
 386                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 387                                                                        msg->elements[i].num_values);
 388                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 389
 390                                 for (j=0; j < msg->elements[i].num_values; j++) {
 391                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 392                                                 result = LDAP_OTHER;
 393                                                 errstr = "Empty attribute values are not allowed";
 394                                                 goto reply;
 395                                         }
 396                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 397                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 398                                 }
 399                         }
 400                 }
 401         } else {
 402                 result = LDAP_OTHER;
 403                 errstr = "No mods are not allowed";
 404                 goto reply;
 405         }
 406
 407 reply:
 408         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 409         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 410
 411         if (result == LDAP_SUCCESS) {
 412                 ldb_ret = ldb_modify(samdb, msg);
 413                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 414         }
 415
 416         modify_result = &modify_reply->msg->r.AddResponse;
 417         modify_result->dn = NULL;
 418         modify_result->resultcode = result;
 419         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 420         modify_result->referral = NULL;
 421
 422         talloc_free(local_ctx);
 423
 424         ldapsrv_queue_reply(call, modify_reply);
 425         return NT_STATUS_OK;
 426
 427 }
 428
 429 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 430 {
 431         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 432         struct ldap_Result *add_result;
 433         struct ldapsrv_reply *add_reply;
 434         void *local_ctx;
 435         struct ldb_context *samdb = call->conn->ldb;
 436         struct ldb_message *msg = NULL;
 437         struct ldb_dn *dn;
 438         const char *errstr = NULL;
 439         int result = LDAP_SUCCESS;
 440         int ldb_ret;
 441         int i,j;
 442
 443         DEBUG(10, ("AddRequest"));
 444         DEBUGADD(10, (" dn: %s", req->dn));
 445
 446         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 447         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 448
 449         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 450         VALID_DN_SYNTAX(dn,1);
 451
 452         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 453
 454         msg = talloc(local_ctx, struct ldb_message);
 455         NT_STATUS_HAVE_NO_MEMORY(msg);
 456
 457         msg->dn = dn;
 458         msg->num_elements = 0;
 459         msg->elements = NULL;
 460
 461         if (req->num_attributes > 0) {
 462                 msg->num_elements = req->num_attributes;
 463                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 464                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 465
 466                 for (i=0; i < msg->num_elements; i++) {
 467                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 468                         msg->elements[i].flags = 0;
 469                         msg->elements[i].num_values = 0;
 470                         msg->elements[i].values = NULL;
 471
 472                         if (req->attributes[i].num_values > 0) {
 473                                 msg->elements[i].num_values = req->attributes[i].num_values;
 474                                 msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
 475                                                                        msg->elements[i].num_values);
 476                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 477
 478                                 for (j=0; j < msg->elements[i].num_values; j++) {
 479                                         if (!(req->attributes[i].values[j].length > 0)) {
 480                                                 result = LDAP_OTHER;
 481                                                 errstr = "Empty attribute values are not allowed";
 482                                                 goto reply;
 483                                         }
 484                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 485                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 486                                 }
 487                         } else {
 488                                 result = LDAP_OTHER;
 489                                 errstr = "No attribute values are not allowed";
 490                                 goto reply;
 491                         }
 492                 }
 493         } else {
 494                 result = LDAP_OTHER;
 495                 errstr = "No attributes are not allowed";
 496                 goto reply;
 497         }
 498
 499 reply:
 500         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 501         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 502
 503         if (result == LDAP_SUCCESS) {
 504                 ldb_ret = ldb_add(samdb, msg);
 505                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 506         }
 507
 508         add_result = &add_reply->msg->r.AddResponse;
 509         add_result->dn = NULL;
 510         add_result->resultcode = result;
 511         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 512         add_result->referral = NULL;
 513
 514         talloc_free(local_ctx);
 515
 516         ldapsrv_queue_reply(call, add_reply);
 517         return NT_STATUS_OK;
 518
 519 }
 520
 521 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 522 {
 523         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 524         struct ldap_Result *del_result;
 525         struct ldapsrv_reply *del_reply;
 526         void *local_ctx;
 527         struct ldb_context *samdb = call->conn->ldb;
 528         struct ldb_dn *dn;
 529         const char *errstr = NULL;
 530         int result = LDAP_SUCCESS;
 531         int ldb_ret;
 532
 533         DEBUG(10, ("DelRequest"));
 534         DEBUGADD(10, (" dn: %s", req->dn));
 535
 536         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 537         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 538
 539         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 540         VALID_DN_SYNTAX(dn,1);
 541
 542         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 543
 544 reply:
 545         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 546         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 547
 548         if (result == LDAP_SUCCESS) {
 549                 ldb_ret = ldb_delete(samdb, dn);
 550                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 551         }
 552
 553         del_result = &del_reply->msg->r.DelResponse;
 554         del_result->dn = NULL;
 555         del_result->resultcode = result;
 556         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 557         del_result->referral = NULL;
 558
 559         talloc_free(local_ctx);
 560
 561         ldapsrv_queue_reply(call, del_reply);
 562         return NT_STATUS_OK;
 563 }
 564
 565 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 566 {
 567         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 568         struct ldap_Result *modifydn;
 569         struct ldapsrv_reply *modifydn_r;
 570         void *local_ctx;
 571         struct ldb_context *samdb = call->conn->ldb;
 572         struct ldb_dn *olddn, *newdn=NULL, *newrdn;
 573         struct ldb_dn *parentdn = NULL;
 574         const char *errstr = NULL;
 575         int result = LDAP_SUCCESS;
 576         int ldb_ret;
 577
 578         DEBUG(10, ("ModifyDNRequrest"));
 579         DEBUGADD(10, (" dn: %s", req->dn));
 580         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 581
 582         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 583         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 584
 585         olddn = ldb_dn_new(local_ctx, samdb, req->dn);
 586         VALID_DN_SYNTAX(olddn, 2);
 587
 588         newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
 589         VALID_DN_SYNTAX(newrdn, 1);
 590
 591         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 592         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 593
 594         /* we can't handle the rename if we should not remove the old dn */
 595         if (!req->deleteolddn) {
 596                 result = LDAP_UNWILLING_TO_PERFORM;
 597                 errstr = "Old RDN must be deleted";
 598                 goto reply;
 599         }
 600
 601         if (req->newsuperior) {
 602                 parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
 603                 VALID_DN_SYNTAX(parentdn, 0);
 604                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 605
 606                 if (ldb_dn_get_comp_num(parentdn) < 1) {
 607                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 608                         errstr = "Error new Superior DN invalid";
 609                         goto reply;
 610                 }
 611         }
 612
 613         if (!parentdn) {
 614                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 615                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 616         }
 617
 618         if ( ! ldb_dn_add_child_fmt(parentdn,
 619                                 "%s=%s",
 620                                 ldb_dn_get_rdn_name(newrdn),
 621                                 (char *)ldb_dn_get_rdn_val(newrdn)->data)) {
 622                 result = LDAP_OTHER;
 623                 goto reply;
 624         }
 625         newdn = parentdn;
 626
 627 reply:
 628         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 629         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 630
 631         if (result == LDAP_SUCCESS) {
 632                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 633                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 634         }
 635
 636         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 637         modifydn->dn = NULL;
 638         modifydn->resultcode = result;
 639         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 640         modifydn->referral = NULL;
 641
 642         talloc_free(local_ctx);
 643
 644         ldapsrv_queue_reply(call, modifydn_r);
 645         return NT_STATUS_OK;
 646 }
 647
 648 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 649 {
 650         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 651         struct ldap_Result *compare;
 652         struct ldapsrv_reply *compare_r;
 653         void *local_ctx;
 654         struct ldb_context *samdb = call->conn->ldb;
 655         struct ldb_result *res = NULL;
 656         struct ldb_dn *dn;
 657         const char *attrs[1];
 658         const char *errstr = NULL;
 659         const char *filter = NULL;
 660         int result = LDAP_SUCCESS;
 661         int ldb_ret;
 662
 663         DEBUG(10, ("CompareRequest"));
 664         DEBUGADD(10, (" dn: %s", req->dn));
 665
 666         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 667         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 668
 669         dn = ldb_dn_new(local_ctx, samdb, req->dn);
 670         VALID_DN_SYNTAX(dn, 1);
 671
 672         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 673         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 674                                  (int)req->value.length, req->value.data);
 675         NT_STATUS_HAVE_NO_MEMORY(filter);
 676
 677         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 678
 679         attrs[0] = NULL;
 680
 681 reply:
 682         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 683         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 684
 685         if (result == LDAP_SUCCESS) {
 686                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 687                 talloc_steal(local_ctx, res);
 688                 if (ldb_ret != LDB_SUCCESS) {
 689                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 690                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 691                 } else if (res->count == 0) {
 692                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 693                         result = LDAP_COMPARE_FALSE;
 694                         errstr = NULL;
 695                 } else if (res->count == 1) {
 696                         DEBUG(10,("CompareRequest: matched\n"));
 697                         result = LDAP_COMPARE_TRUE;
 698                         errstr = NULL;
 699                 } else if (res->count > 1) {
 700                         result = LDAP_OTHER;
 701                         errstr = "too many objects match";
 702                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 703                 }
 704         }
 705
 706         compare = &compare_r->msg->r.CompareResponse;
 707         compare->dn = NULL;
 708         compare->resultcode = result;
 709         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 710         compare->referral = NULL;
 711
 712         talloc_free(local_ctx);
 713
 714         ldapsrv_queue_reply(call, compare_r);
 715         return NT_STATUS_OK;
 716 }
 717
 718 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 719 {
 720 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 721         DEBUG(10, ("AbandonRequest\n"));
 722         return NT_STATUS_OK;
 723 }
 724
 725 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 726 {
 727         switch(call->request->type) {
 728         case LDAP_TAG_BindRequest:
 729                 return ldapsrv_BindRequest(call);
 730         case LDAP_TAG_UnbindRequest:
 731                 return ldapsrv_UnbindRequest(call);
 732         case LDAP_TAG_SearchRequest:
 733                 return ldapsrv_SearchRequest(call);
 734         case LDAP_TAG_ModifyRequest:
 735                 return ldapsrv_ModifyRequest(call);
 736         case LDAP_TAG_AddRequest:
 737                 return ldapsrv_AddRequest(call);
 738         case LDAP_TAG_DelRequest:
 739                 return ldapsrv_DelRequest(call);
 740         case LDAP_TAG_ModifyDNRequest:
 741                 return ldapsrv_ModifyDNRequest(call);
 742         case LDAP_TAG_CompareRequest:
 743                 return ldapsrv_CompareRequest(call);
 744         case LDAP_TAG_AbandonRequest:
 745                 return ldapsrv_AbandonRequest(call);
 746         case LDAP_TAG_ExtendedRequest:
 747                 return ldapsrv_ExtendedRequest(call);
 748         default:
 749                 return ldapsrv_unwilling(call, 2);
 750         }
 751 }