source/ldap_server/ldap_backend.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP server
   4    Copyright (C) Stefan Metzmacher 2004
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22 #include "ldap_server/ldap_server.h"
  23 #include "dlinklist.h"
  24 #include "libcli/ldap/ldap.h"
  25 #include "lib/ldb/include/ldb.h"
  26 #include "lib/ldb/include/ldb_errors.h"
  27 #include "dsdb/samdb/samdb.h"
  28
  29 #define VALID_DN_SYNTAX(dn,i) do {\
  30         if (!(dn)) {\
  31                 return NT_STATUS_NO_MEMORY;\
  32         } else if ((dn)->comp_num < (i)) {\
  33                 result = LDAP_INVALID_DN_SYNTAX;\
  34                 errstr = "Invalid DN (" #i " components needed for '" #dn "')";\
  35                 goto reply;\
  36         }\
  37 } while(0)
  38
  39 static int map_ldb_error(struct ldb_context *ldb, int err, const char **errstring)
  40 {
  41         *errstring = ldb_errstring(ldb);
  42
  43         /* its 1:1 for now */
  44         return err;
  45 }
  46
  47 /*
  48   connect to the sam database
  49 */
  50 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
  51 {
  52         conn->ldb = samdb_connect(conn, conn->session_info);
  53         if (conn->ldb == NULL) {
  54                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
  55         }
  56         ldb_set_opaque(conn->ldb, "server_credentials", conn->server_credentials);
  57
  58         return NT_STATUS_OK;
  59 }
  60
  61 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
  62 {
  63         struct ldapsrv_reply *reply;
  64
  65         reply = talloc(call, struct ldapsrv_reply);
  66         if (!reply) {
  67                 return NULL;
  68         }
  69         reply->msg = talloc(reply, struct ldap_message);
  70         if (reply->msg == NULL) {
  71                 talloc_free(reply);
  72                 return NULL;
  73         }
  74
  75         reply->msg->messageid = call->request->messageid;
  76         reply->msg->type = type;
  77         reply->msg->controls = NULL;
  78
  79         return reply;
  80 }
  81
  82 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
  83 {
  84         DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
  85 }
  86
  87 NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
  88 {
  89         struct ldapsrv_reply *reply;
  90         struct ldap_ExtendedResponse *r;
  91
  92         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
  93
  94         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
  95         if (!reply) {
  96                 return NT_STATUS_NO_MEMORY;
  97         }
  98
  99         r = &reply->msg->r.ExtendedResponse;
 100         r->response.resultcode = error;
 101         r->response.dn = NULL;
 102         r->response.errormessage = NULL;
 103         r->response.referral = NULL;
 104         r->oid = NULL;
 105         r->value = NULL;
 106
 107         ldapsrv_queue_reply(call, reply);
 108         return NT_STATUS_OK;
 109 }
 110
 111 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 112 {
 113         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 114         struct ldap_SearchResEntry *ent;
 115         struct ldap_Result *done;
 116         struct ldapsrv_reply *ent_r, *done_r;
 117         void *local_ctx;
 118         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 119         struct ldb_dn *basedn;
 120         struct ldb_result *res = NULL;
 121         struct ldb_request lreq;
 122         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 123         const char **attrs = NULL;
 124         const char *errstr = NULL;
 125         int success_limit = 1;
 126         int result = LDAP_SUCCESS;
 127         int ldb_ret;
 128         int i, j;
 129
 130         DEBUG(10, ("SearchRequest"));
 131         DEBUGADD(10, (" basedn: %s", req->basedn));
 132         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 133
 134         local_ctx = talloc_new(call);
 135         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 136
 137         basedn = ldb_dn_explode(local_ctx, req->basedn);
 138         VALID_DN_SYNTAX(basedn, 0);
 139
 140         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 141         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 142
 143         switch (req->scope) {
 144                 case LDAP_SEARCH_SCOPE_BASE:
 145                         DEBUG(10,("SearchRequest: scope: [BASE]\n"));
 146                         scope = LDB_SCOPE_BASE;
 147                         success_limit = 0;
 148                         break;
 149                 case LDAP_SEARCH_SCOPE_SINGLE:
 150                         DEBUG(10,("SearchRequest: scope: [ONE]\n"));
 151                         scope = LDB_SCOPE_ONELEVEL;
 152                         success_limit = 0;
 153                         break;
 154                 case LDAP_SEARCH_SCOPE_SUB:
 155                         DEBUG(10,("SearchRequest: scope: [SUB]\n"));
 156                         scope = LDB_SCOPE_SUBTREE;
 157                         success_limit = 0;
 158                         break;
 159         }
 160
 161         if (req->num_attributes >= 1) {
 162                 attrs = talloc_array(samdb, const char *, req->num_attributes+1);
 163                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 164
 165                 for (i=0; i < req->num_attributes; i++) {
 166                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 167                         attrs[i] = req->attributes[i];
 168                 }
 169                 attrs[i] = NULL;
 170         }
 171
 172         DEBUG(5,("ldb_request dn=%s filter=%s\n",
 173                  req->basedn, ldb_filter_from_tree(call, req->tree)));
 174
 175         ZERO_STRUCT(lreq);
 176         lreq.operation = LDB_REQ_SEARCH;
 177         lreq.op.search.base = basedn;
 178         lreq.op.search.scope = scope;
 179         lreq.op.search.tree = req->tree;
 180         lreq.op.search.attrs = attrs;
 181
 182         lreq.controls = call->request->controls;
 183
 184         ldb_ret = ldb_request(samdb, &lreq);
 185
 186         /* Ensure we don't keep the search results around for too long */
 187         res = talloc_steal(local_ctx, lreq.op.search.res);
 188
 189         if (ldb_ret == LDB_SUCCESS) {
 190                 for (i = 0; i < res->count; i++) {
 191                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 192                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 193
 194                         ent = &ent_r->msg->r.SearchResultEntry;
 195                         ent->dn = ldb_dn_linearize(ent_r, res->msgs[i]->dn);
 196                         ent->num_attributes = 0;
 197                         ent->attributes = NULL;
 198                         if (res->msgs[i]->num_elements == 0) {
 199                                 goto queue_reply;
 200                         }
 201                         ent->num_attributes = res->msgs[i]->num_elements;
 202                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 203                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 204                         for (j=0; j < ent->num_attributes; j++) {
 205                                 ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[i]->elements[j].name);
 206                                 ent->attributes[j].num_values = 0;
 207                                 ent->attributes[j].values = NULL;
 208                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 209                                         continue;
 210                                 }
 211                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 212                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 213                                 talloc_steal(ent->attributes, res->msgs[i]->elements[j].values);
 214                         }
 215 queue_reply:
 216                         ldapsrv_queue_reply(call, ent_r);
 217                 }
 218         }
 219
 220 reply:
 221         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 222         NT_STATUS_HAVE_NO_MEMORY(done_r);
 223
 224         done = &done_r->msg->r.SearchResultDone;
 225         done->dn = NULL;
 226         done->referral = NULL;
 227
 228         if (ldb_ret == LDB_SUCCESS) {
 229                 if (res->count >= success_limit) {
 230                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 231                         result = LDAP_SUCCESS;
 232                         errstr = NULL;
 233                 } else if (res->count == 0) {
 234                         DEBUG(10,("SearchRequest: no results\n"));
 235                         result = LDAP_NO_SUCH_OBJECT;
 236                         errstr = ldb_errstring(samdb);
 237                 }
 238                 if (res->controls) {
 239                         done_r->msg->controls = res->controls;
 240                         talloc_steal(done_r, res->controls);
 241                 }
 242         } else {
 243                 DEBUG(10,("SearchRequest: error\n"));
 244                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 245         }
 246
 247         done->resultcode = result;
 248         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 249
 250         talloc_free(local_ctx);
 251
 252         ldapsrv_queue_reply(call, done_r);
 253         return NT_STATUS_OK;
 254 }
 255
 256 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 257 {
 258         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 259         struct ldap_Result *modify_result;
 260         struct ldapsrv_reply *modify_reply;
 261         void *local_ctx;
 262         struct ldb_context *samdb = call->conn->ldb;
 263         struct ldb_message *msg = NULL;
 264         struct ldb_dn *dn;
 265         const char *errstr = NULL;
 266         int result = LDAP_SUCCESS;
 267         int ldb_ret;
 268         int i,j;
 269
 270         DEBUG(10, ("ModifyRequest"));
 271         DEBUGADD(10, (" dn: %s", req->dn));
 272
 273         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 274         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 275
 276         dn = ldb_dn_explode(local_ctx, req->dn);
 277         VALID_DN_SYNTAX(dn, 1);
 278
 279         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 280
 281         msg = talloc(local_ctx, struct ldb_message);
 282         NT_STATUS_HAVE_NO_MEMORY(msg);
 283
 284         msg->dn = dn;
 285         msg->private_data = NULL;
 286         msg->num_elements = 0;
 287         msg->elements = NULL;
 288
 289         if (req->num_mods > 0) {
 290                 msg->num_elements = req->num_mods;
 291                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 292                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 293
 294                 for (i=0; i < msg->num_elements; i++) {
 295                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 296                         msg->elements[i].num_values = 0;
 297                         msg->elements[i].values = NULL;
 298
 299                         switch (req->mods[i].type) {
 300                         default:
 301                                 result = LDAP_PROTOCOL_ERROR;
 302                                 errstr = "Invalid LDAP_MODIFY_* type";
 303                                 goto reply;
 304                         case LDAP_MODIFY_ADD:
 305                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 306                                 break;
 307                         case LDAP_MODIFY_DELETE:
 308                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 309                                 break;
 310                         case LDAP_MODIFY_REPLACE:
 311                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 312                                 break;
 313                         }
 314
 315                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 316                         if (msg->elements[i].num_values > 0) {
 317                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 318                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 319
 320                                 for (j=0; j < msg->elements[i].num_values; j++) {
 321                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 322                                                 result = LDAP_OTHER;
 323                                                 errstr = "Empty attribute values are not allowed";
 324                                                 goto reply;
 325                                         }
 326                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 327                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 328                                 }
 329                         }
 330                 }
 331         } else {
 332                 result = LDAP_OTHER;
 333                 errstr = "No mods are not allowed";
 334                 goto reply;
 335         }
 336
 337 reply:
 338         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 339         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 340
 341         if (result == LDAP_SUCCESS) {
 342                 ldb_ret = ldb_modify(samdb, msg);
 343                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 344         }
 345
 346         modify_result = &modify_reply->msg->r.AddResponse;
 347         modify_result->dn = NULL;
 348         modify_result->resultcode = result;
 349         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 350         modify_result->referral = NULL;
 351
 352         talloc_free(local_ctx);
 353
 354         ldapsrv_queue_reply(call, modify_reply);
 355         return NT_STATUS_OK;
 356
 357 }
 358
 359 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 360 {
 361         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 362         struct ldap_Result *add_result;
 363         struct ldapsrv_reply *add_reply;
 364         void *local_ctx;
 365         struct ldb_context *samdb = call->conn->ldb;
 366         struct ldb_message *msg = NULL;
 367         struct ldb_dn *dn;
 368         const char *errstr = NULL;
 369         int result = LDAP_SUCCESS;
 370         int ldb_ret;
 371         int i,j;
 372
 373         DEBUG(10, ("AddRequest"));
 374         DEBUGADD(10, (" dn: %s", req->dn));
 375
 376         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 377         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 378
 379         dn = ldb_dn_explode(local_ctx, req->dn);
 380         VALID_DN_SYNTAX(dn,1);
 381
 382         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 383
 384         msg = talloc(local_ctx, struct ldb_message);
 385         NT_STATUS_HAVE_NO_MEMORY(msg);
 386
 387         msg->dn = dn;
 388         msg->private_data = NULL;
 389         msg->num_elements = 0;
 390         msg->elements = NULL;
 391
 392         if (req->num_attributes > 0) {
 393                 msg->num_elements = req->num_attributes;
 394                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 395                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 396
 397                 for (i=0; i < msg->num_elements; i++) {
 398                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 399                         msg->elements[i].flags = 0;
 400                         msg->elements[i].num_values = 0;
 401                         msg->elements[i].values = NULL;
 402
 403                         if (req->attributes[i].num_values > 0) {
 404                                 msg->elements[i].num_values = req->attributes[i].num_values;
 405                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 406                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 407
 408                                 for (j=0; j < msg->elements[i].num_values; j++) {
 409                                         if (!(req->attributes[i].values[j].length > 0)) {
 410                                                 result = LDAP_OTHER;
 411                                                 errstr = "Empty attribute values are not allowed";
 412                                                 goto reply;
 413                                         }
 414                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 415                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 416                                 }
 417                         } else {
 418                                 result = LDAP_OTHER;
 419                                 errstr = "No attribute values are not allowed";
 420                                 goto reply;
 421                         }
 422                 }
 423         } else {
 424                 result = LDAP_OTHER;
 425                 errstr = "No attributes are not allowed";
 426                 goto reply;
 427         }
 428
 429 reply:
 430         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 431         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 432
 433         if (result == LDAP_SUCCESS) {
 434                 ldb_ret = ldb_add(samdb, msg);
 435                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 436         }
 437
 438         add_result = &add_reply->msg->r.AddResponse;
 439         add_result->dn = NULL;
 440         add_result->resultcode = result;
 441         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 442         add_result->referral = NULL;
 443
 444         talloc_free(local_ctx);
 445
 446         ldapsrv_queue_reply(call, add_reply);
 447         return NT_STATUS_OK;
 448
 449 }
 450
 451 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 452 {
 453         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 454         struct ldap_Result *del_result;
 455         struct ldapsrv_reply *del_reply;
 456         void *local_ctx;
 457         struct ldb_context *samdb = call->conn->ldb;
 458         struct ldb_dn *dn;
 459         const char *errstr = NULL;
 460         int result = LDAP_SUCCESS;
 461         int ldb_ret;
 462
 463         DEBUG(10, ("DelRequest"));
 464         DEBUGADD(10, (" dn: %s", req->dn));
 465
 466         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 467         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 468
 469         dn = ldb_dn_explode(local_ctx, req->dn);
 470         VALID_DN_SYNTAX(dn,1);
 471
 472         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 473
 474 reply:
 475         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 476         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 477
 478         if (result == LDAP_SUCCESS) {
 479                 ldb_ret = ldb_delete(samdb, dn);
 480                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 481         }
 482
 483         del_result = &del_reply->msg->r.DelResponse;
 484         del_result->dn = NULL;
 485         del_result->resultcode = result;
 486         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 487         del_result->referral = NULL;
 488
 489         talloc_free(local_ctx);
 490
 491         ldapsrv_queue_reply(call, del_reply);
 492         return NT_STATUS_OK;
 493 }
 494
 495 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 496 {
 497         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 498         struct ldap_Result *modifydn;
 499         struct ldapsrv_reply *modifydn_r;
 500         void *local_ctx;
 501         struct ldb_context *samdb = call->conn->ldb;
 502         struct ldb_dn *olddn, *newdn, *newrdn;
 503         struct ldb_dn *parentdn = NULL;
 504         const char *errstr = NULL;
 505         int result = LDAP_SUCCESS;
 506         int ldb_ret;
 507
 508         DEBUG(10, ("ModifyDNRequrest"));
 509         DEBUGADD(10, (" dn: %s", req->dn));
 510         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 511
 512         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 513         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 514
 515         olddn = ldb_dn_explode(local_ctx, req->dn);
 516         VALID_DN_SYNTAX(olddn, 2);
 517
 518         newrdn = ldb_dn_explode(local_ctx, req->newrdn);
 519         VALID_DN_SYNTAX(newrdn, 1);
 520
 521         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 522         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 523
 524         /* we can't handle the rename if we should not remove the old dn */
 525         if (!req->deleteolddn) {
 526                 result = LDAP_UNWILLING_TO_PERFORM;
 527                 errstr = "Old RDN must be deleted";
 528                 goto reply;
 529         }
 530
 531         if (newrdn->comp_num > 1) {
 532                 result = LDAP_NAMING_VIOLATION;
 533                 errstr = "Error new RDN invalid";
 534                 goto reply;
 535         }
 536
 537         if (req->newsuperior) {
 538                 parentdn = ldb_dn_explode(local_ctx, req->newsuperior);
 539                 VALID_DN_SYNTAX(parentdn, 0);
 540                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 541
 542                 if (parentdn->comp_num < 1) {
 543                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 544                         errstr = "Error new Superior DN invalid";
 545                         goto reply;
 546                 }
 547         }
 548
 549         if (!parentdn) {
 550                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 551                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 552         }
 553
 554         newdn = ldb_dn_make_child(local_ctx, ldb_dn_get_rdn(local_ctx, newrdn), parentdn);
 555         NT_STATUS_HAVE_NO_MEMORY(newdn);
 556
 557 reply:
 558         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 559         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 560
 561         if (result == LDAP_SUCCESS) {
 562                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 563                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 564         }
 565
 566         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 567         modifydn->dn = NULL;
 568         modifydn->resultcode = result;
 569         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 570         modifydn->referral = NULL;
 571
 572         talloc_free(local_ctx);
 573
 574         ldapsrv_queue_reply(call, modifydn_r);
 575         return NT_STATUS_OK;
 576 }
 577
 578 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 579 {
 580         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 581         struct ldap_Result *compare;
 582         struct ldapsrv_reply *compare_r;
 583         void *local_ctx;
 584         struct ldb_context *samdb = call->conn->ldb;
 585         struct ldb_result *res = NULL;
 586         struct ldb_dn *dn;
 587         const char *attrs[1];
 588         const char *errstr = NULL;
 589         const char *filter = NULL;
 590         int result = LDAP_SUCCESS;
 591         int ldb_ret;
 592
 593         DEBUG(10, ("CompareRequest"));
 594         DEBUGADD(10, (" dn: %s", req->dn));
 595
 596         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 597         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 598
 599         dn = ldb_dn_explode(local_ctx, req->dn);
 600         VALID_DN_SYNTAX(dn, 1);
 601
 602         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 603         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 604                                  (int)req->value.length, req->value.data);
 605         NT_STATUS_HAVE_NO_MEMORY(filter);
 606
 607         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 608
 609         attrs[0] = NULL;
 610
 611 reply:
 612         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 613         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 614
 615         if (result == LDAP_SUCCESS) {
 616                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 617                 talloc_steal(samdb, res);
 618                 if (ldb_ret != LDB_SUCCESS) {
 619                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 620                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 621                 } else if (res->count == 0) {
 622                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 623                         result = LDAP_COMPARE_FALSE;
 624                         errstr = NULL;
 625                 } else if (res->count == 1) {
 626                         DEBUG(10,("CompareRequest: matched\n"));
 627                         result = LDAP_COMPARE_TRUE;
 628                         errstr = NULL;
 629                 } else if (res->count > 1) {
 630                         result = LDAP_OTHER;
 631                         errstr = "too many objects match";
 632                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 633                 }
 634         }
 635
 636         compare = &compare_r->msg->r.CompareResponse;
 637         compare->dn = NULL;
 638         compare->resultcode = result;
 639         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 640         compare->referral = NULL;
 641
 642         talloc_free(local_ctx);
 643
 644         ldapsrv_queue_reply(call, compare_r);
 645         return NT_STATUS_OK;
 646 }
 647
 648 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 649 {
 650 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 651         DEBUG(10, ("AbandonRequest\n"));
 652         return NT_STATUS_OK;
 653 }
 654
 655 static NTSTATUS ldapsrv_ExtendedRequest(struct ldapsrv_call *call)
 656 {
 657 /*      struct ldap_ExtendedRequest *req = &call->request.r.ExtendedRequest;*/
 658         struct ldapsrv_reply *reply;
 659
 660         DEBUG(10, ("Extended\n"));
 661
 662         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 663         if (!reply) {
 664                 return NT_STATUS_NO_MEMORY;
 665         }
 666
 667         ZERO_STRUCT(reply->msg->r);
 668
 669         ldapsrv_queue_reply(call, reply);
 670         return NT_STATUS_OK;
 671 }
 672
 673 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 674 {
 675         switch(call->request->type) {
 676         case LDAP_TAG_BindRequest:
 677                 return ldapsrv_BindRequest(call);
 678         case LDAP_TAG_UnbindRequest:
 679                 return ldapsrv_UnbindRequest(call);
 680         case LDAP_TAG_SearchRequest:
 681                 return ldapsrv_SearchRequest(call);
 682         case LDAP_TAG_ModifyRequest:
 683                 return ldapsrv_ModifyRequest(call);
 684         case LDAP_TAG_AddRequest:
 685                 return ldapsrv_AddRequest(call);
 686         case LDAP_TAG_DelRequest:
 687                 return ldapsrv_DelRequest(call);
 688         case LDAP_TAG_ModifyDNRequest:
 689                 return ldapsrv_ModifyDNRequest(call);
 690         case LDAP_TAG_CompareRequest:
 691                 return ldapsrv_CompareRequest(call);
 692         case LDAP_TAG_AbandonRequest:
 693                 return ldapsrv_AbandonRequest(call);
 694         case LDAP_TAG_ExtendedRequest:
 695                 return ldapsrv_ExtendedRequest(call);
 696         default:
 697                 return ldapsrv_unwilling(call, 2);
 698         }
 699 }
 700
 701