source4/ldap_server/ldap_backend.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    LDAP server
   4    Copyright (C) Stefan Metzmacher 2004
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21 #include "includes.h"
  22 #include "ldap_server/ldap_server.h"
  23 #include "lib/util/dlinklist.h"
  24 #include "libcli/ldap/ldap.h"
  25 #include "lib/ldb/include/ldb.h"
  26 #include "lib/ldb/include/ldb_errors.h"
  27 #include "lib/db_wrap.h"
  28 #include "auth/credentials/credentials.h"
  29 #include "auth/gensec/gensec.h"
  30
  31 #define VALID_DN_SYNTAX(dn,i) do {\
  32         if (!(dn)) {\
  33                 return NT_STATUS_NO_MEMORY;\
  34         } else if ((dn)->comp_num < (i)) {\
  35                 result = LDAP_INVALID_DN_SYNTAX;\
  36                 errstr = "Invalid DN (" #i " components needed for '" #dn "')";\
  37                 goto reply;\
  38         }\
  39 } while(0)
  40
  41 static int map_ldb_error(struct ldb_context *ldb, int err, const char **errstring)
  42 {
  43         *errstring = ldb_errstring(ldb);
  44
  45         /* its 1:1 for now */
  46         return err;
  47 }
  48
  49 /*
  50   connect to the sam database
  51 */
  52 NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
  53 {
  54         conn->ldb = ldb_wrap_connect(conn, lp_sam_url(), conn->session_info,
  55                                      NULL, conn->global_catalog ? LDB_FLG_RDONLY : 0, NULL);
  56         if (conn->ldb == NULL) {
  57                 return NT_STATUS_INTERNAL_DB_CORRUPTION;
  58         }
  59
  60         if (conn->server_credentials) {
  61                 char **sasl_mechs = NULL;
  62                 struct gensec_security_ops **backends = gensec_security_all();
  63                 enum credentials_use_kerberos use_kerberos
  64                         = cli_credentials_get_kerberos_state(conn->server_credentials);
  65                 struct gensec_security_ops **ops
  66                         = gensec_use_kerberos_mechs(conn, backends, use_kerberos);
  67                 int i, j = 0;
  68                 for (i = 0; ops && ops[i]; i++) {
  69                         if (ops[i]->sasl_name && ops[i]->server_start) {
  70                                 char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
  71
  72                                 if (!sasl_name) {
  73                                         return NT_STATUS_NO_MEMORY;
  74                                 }
  75                                 sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
  76                                 if (!sasl_mechs) {
  77                                         return NT_STATUS_NO_MEMORY;
  78                                 }
  79                                 sasl_mechs[j] = sasl_name;
  80                                 talloc_steal(sasl_mechs, sasl_name);
  81                                 sasl_mechs[j+1] = NULL;
  82                                 j++;
  83                         }
  84                 }
  85                 talloc_free(ops);
  86                 ldb_set_opaque(conn->ldb, "supportedSASLMechanims", sasl_mechs);
  87         }
  88
  89         if (conn->global_catalog) {
  90                 ldb_set_opaque(conn->ldb, "global_catalog", (void *)(-1));
  91         }
  92
  93         return NT_STATUS_OK;
  94 }
  95
  96 struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
  97 {
  98         struct ldapsrv_reply *reply;
  99
 100         reply = talloc(call, struct ldapsrv_reply);
 101         if (!reply) {
 102                 return NULL;
 103         }
 104         reply->msg = talloc(reply, struct ldap_message);
 105         if (reply->msg == NULL) {
 106                 talloc_free(reply);
 107                 return NULL;
 108         }
 109
 110         reply->msg->messageid = call->request->messageid;
 111         reply->msg->type = type;
 112         reply->msg->controls = NULL;
 113
 114         return reply;
 115 }
 116
 117 void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
 118 {
 119         DLIST_ADD_END(call->replies, reply, struct ldapsrv_reply *);
 120 }
 121
 122 NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
 123 {
 124         struct ldapsrv_reply *reply;
 125         struct ldap_ExtendedResponse *r;
 126
 127         DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
 128
 129         reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
 130         if (!reply) {
 131                 return NT_STATUS_NO_MEMORY;
 132         }
 133
 134         r = &reply->msg->r.ExtendedResponse;
 135         r->response.resultcode = error;
 136         r->response.dn = NULL;
 137         r->response.errormessage = NULL;
 138         r->response.referral = NULL;
 139         r->oid = NULL;
 140         r->value = NULL;
 141
 142         ldapsrv_queue_reply(call, reply);
 143         return NT_STATUS_OK;
 144 }
 145
 146 static int ldapsrv_SearchCallback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
 147 {
 148         struct ldb_result *res;
 149         int n;
 150
 151         if (!context || !ares) {
 152                 DEBUG(3, ("NULL Context or Ares in ldapsrv_SearchCallback"));
 153                 return LDB_ERR_OPERATIONS_ERROR;
 154         }
 155
 156         res = talloc_get_type(context, struct ldb_result);
 157
 158         if (ares->type == LDB_REPLY_ENTRY) {
 159                 res->msgs = talloc_realloc(res, res->msgs, struct ldb_message *, res->count + 2);
 160                 if (! res->msgs) {
 161                         goto error;
 162                 }
 163
 164                 res->msgs[res->count + 1] = NULL;
 165
 166                 res->msgs[res->count] = talloc_steal(res->msgs, ares->message);
 167                 if (! res->msgs[res->count]) {
 168                         goto error;
 169                 }
 170
 171                 res->count++;
 172         }
 173
 174         if (ares->type == LDB_REPLY_REFERRAL) {
 175                 if (res->refs) {
 176                         for (n = 0; res->refs[n]; n++) /*noop*/ ;
 177                 } else {
 178                         n = 0;
 179                 }
 180
 181                 res->refs = talloc_realloc(res, res->refs, char *, n + 2);
 182                 if (! res->refs) {
 183                         goto error;
 184                 }
 185
 186                 res->refs[n] = talloc_steal(res->refs, ares->referral);
 187                 res->refs[n + 1] = NULL;
 188         }
 189
 190         if (ares->controls) {
 191                 res->controls = talloc_steal(res, ares->controls);
 192                 if (! res->controls) {
 193                         goto error;
 194                 }
 195         }
 196
 197         talloc_free(ares);
 198         return LDB_SUCCESS;
 199
 200 error:
 201         talloc_free(ares);
 202         return LDB_ERR_OPERATIONS_ERROR;
 203 }
 204
 205 static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
 206 {
 207         struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
 208         struct ldap_SearchResEntry *ent;
 209         struct ldap_Result *done;
 210         struct ldapsrv_reply *ent_r, *done_r;
 211         void *local_ctx;
 212         struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
 213         struct ldb_dn *basedn;
 214         struct ldb_result *res = NULL;
 215         struct ldb_request *lreq;
 216         enum ldb_scope scope = LDB_SCOPE_DEFAULT;
 217         const char **attrs = NULL;
 218         const char *errstr = NULL;
 219         int success_limit = 1;
 220         int result = -1;
 221         int ldb_ret = -1;
 222         int i, j;
 223
 224         DEBUG(10, ("SearchRequest"));
 225         DEBUGADD(10, (" basedn: %s", req->basedn));
 226         DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
 227
 228         local_ctx = talloc_new(call);
 229         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 230
 231         basedn = ldb_dn_explode(local_ctx, req->basedn);
 232         VALID_DN_SYNTAX(basedn, 0);
 233
 234         DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
 235         DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
 236
 237         switch (req->scope) {
 238                 case LDAP_SEARCH_SCOPE_BASE:
 239                         DEBUG(10,("SearchRequest: scope: [BASE]\n"));
 240                         scope = LDB_SCOPE_BASE;
 241                         success_limit = 0;
 242                         break;
 243                 case LDAP_SEARCH_SCOPE_SINGLE:
 244                         DEBUG(10,("SearchRequest: scope: [ONE]\n"));
 245                         scope = LDB_SCOPE_ONELEVEL;
 246                         success_limit = 0;
 247                         break;
 248                 case LDAP_SEARCH_SCOPE_SUB:
 249                         DEBUG(10,("SearchRequest: scope: [SUB]\n"));
 250                         scope = LDB_SCOPE_SUBTREE;
 251                         success_limit = 0;
 252                         break;
 253                 default:
 254                         result = LDAP_PROTOCOL_ERROR;
 255                         errstr = "Invalid scope";
 256                         break;
 257         }
 258
 259         if (req->num_attributes >= 1) {
 260                 attrs = talloc_array(samdb, const char *, req->num_attributes+1);
 261                 NT_STATUS_HAVE_NO_MEMORY(attrs);
 262
 263                 for (i=0; i < req->num_attributes; i++) {
 264                         DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
 265                         attrs[i] = req->attributes[i];
 266                 }
 267                 attrs[i] = NULL;
 268         }
 269
 270         DEBUG(5,("ldb_request dn=%s filter=%s\n",
 271                  req->basedn, ldb_filter_from_tree(call, req->tree)));
 272
 273         lreq = talloc(local_ctx, struct ldb_request);
 274         NT_STATUS_HAVE_NO_MEMORY(lreq);
 275
 276         res = talloc_zero(local_ctx, struct ldb_result);
 277         NT_STATUS_HAVE_NO_MEMORY(res);
 278
 279         lreq->operation = LDB_SEARCH;
 280         lreq->op.search.base = basedn;
 281         lreq->op.search.scope = scope;
 282         lreq->op.search.tree = req->tree;
 283         lreq->op.search.attrs = attrs;
 284
 285         lreq->controls = call->request->controls;
 286
 287         lreq->context = res;
 288         lreq->callback = ldapsrv_SearchCallback;
 289
 290         /* Copy the timeout from the incoming call */
 291         ldb_set_timeout(samdb, lreq, req->timelimit);
 292
 293         ldb_ret = ldb_request(samdb, lreq);
 294
 295         if (ldb_ret != LDB_SUCCESS) {
 296                 goto reply;
 297         }
 298
 299         ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
 300
 301         if (ldb_ret == LDB_SUCCESS) {
 302                 for (i = 0; i < res->count; i++) {
 303                         ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
 304                         NT_STATUS_HAVE_NO_MEMORY(ent_r);
 305
 306                         ent = &ent_r->msg->r.SearchResultEntry;
 307                         ent->dn = ldb_dn_linearize(ent_r, res->msgs[i]->dn);
 308                         ent->num_attributes = 0;
 309                         ent->attributes = NULL;
 310                         if (res->msgs[i]->num_elements == 0) {
 311                                 goto queue_reply;
 312                         }
 313                         ent->num_attributes = res->msgs[i]->num_elements;
 314                         ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
 315                         NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
 316                         for (j=0; j < ent->num_attributes; j++) {
 317                                 ent->attributes[j].name = talloc_steal(ent->attributes, res->msgs[i]->elements[j].name);
 318                                 ent->attributes[j].num_values = 0;
 319                                 ent->attributes[j].values = NULL;
 320                                 if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
 321                                         continue;
 322                                 }
 323                                 ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
 324                                 ent->attributes[j].values = res->msgs[i]->elements[j].values;
 325                                 talloc_steal(ent->attributes, res->msgs[i]->elements[j].values);
 326                         }
 327 queue_reply:
 328                         ldapsrv_queue_reply(call, ent_r);
 329                 }
 330         }
 331
 332 reply:
 333         done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
 334         NT_STATUS_HAVE_NO_MEMORY(done_r);
 335
 336         done = &done_r->msg->r.SearchResultDone;
 337         done->dn = NULL;
 338         done->referral = NULL;
 339
 340         if (result != -1) {
 341         } else if (ldb_ret == LDB_SUCCESS) {
 342                 if (res->count >= success_limit) {
 343                         DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
 344                         result = LDAP_SUCCESS;
 345                         errstr = NULL;
 346                 } else if (res->count == 0) {
 347                         DEBUG(10,("SearchRequest: no results\n"));
 348                         result = LDAP_NO_SUCH_OBJECT;
 349                         errstr = ldb_errstring(samdb);
 350                 }
 351                 if (res->controls) {
 352                         done_r->msg->controls = res->controls;
 353                         talloc_steal(done_r, res->controls);
 354                 }
 355         } else {
 356                 DEBUG(10,("SearchRequest: error\n"));
 357                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 358         }
 359
 360         done->resultcode = result;
 361         done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
 362
 363         talloc_free(local_ctx);
 364
 365         ldapsrv_queue_reply(call, done_r);
 366         return NT_STATUS_OK;
 367 }
 368
 369 static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
 370 {
 371         struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
 372         struct ldap_Result *modify_result;
 373         struct ldapsrv_reply *modify_reply;
 374         void *local_ctx;
 375         struct ldb_context *samdb = call->conn->ldb;
 376         struct ldb_message *msg = NULL;
 377         struct ldb_dn *dn;
 378         const char *errstr = NULL;
 379         int result = LDAP_SUCCESS;
 380         int ldb_ret;
 381         int i,j;
 382
 383         DEBUG(10, ("ModifyRequest"));
 384         DEBUGADD(10, (" dn: %s", req->dn));
 385
 386         local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
 387         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 388
 389         dn = ldb_dn_explode(local_ctx, req->dn);
 390         VALID_DN_SYNTAX(dn, 1);
 391
 392         DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
 393
 394         msg = talloc(local_ctx, struct ldb_message);
 395         NT_STATUS_HAVE_NO_MEMORY(msg);
 396
 397         msg->dn = dn;
 398         msg->private_data = NULL;
 399         msg->num_elements = 0;
 400         msg->elements = NULL;
 401
 402         if (req->num_mods > 0) {
 403                 msg->num_elements = req->num_mods;
 404                 msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
 405                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 406
 407                 for (i=0; i < msg->num_elements; i++) {
 408                         msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
 409                         msg->elements[i].num_values = 0;
 410                         msg->elements[i].values = NULL;
 411
 412                         switch (req->mods[i].type) {
 413                         default:
 414                                 result = LDAP_PROTOCOL_ERROR;
 415                                 errstr = "Invalid LDAP_MODIFY_* type";
 416                                 goto reply;
 417                         case LDAP_MODIFY_ADD:
 418                                 msg->elements[i].flags = LDB_FLAG_MOD_ADD;
 419                                 break;
 420                         case LDAP_MODIFY_DELETE:
 421                                 msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
 422                                 break;
 423                         case LDAP_MODIFY_REPLACE:
 424                                 msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
 425                                 break;
 426                         }
 427
 428                         msg->elements[i].num_values = req->mods[i].attrib.num_values;
 429                         if (msg->elements[i].num_values > 0) {
 430                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 431                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 432
 433                                 for (j=0; j < msg->elements[i].num_values; j++) {
 434                                         if (!(req->mods[i].attrib.values[j].length > 0)) {
 435                                                 result = LDAP_OTHER;
 436                                                 errstr = "Empty attribute values are not allowed";
 437                                                 goto reply;
 438                                         }
 439                                         msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
 440                                         msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
 441                                 }
 442                         }
 443                 }
 444         } else {
 445                 result = LDAP_OTHER;
 446                 errstr = "No mods are not allowed";
 447                 goto reply;
 448         }
 449
 450 reply:
 451         modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
 452         NT_STATUS_HAVE_NO_MEMORY(modify_reply);
 453
 454         if (result == LDAP_SUCCESS) {
 455                 ldb_ret = ldb_modify(samdb, msg);
 456                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 457         }
 458
 459         modify_result = &modify_reply->msg->r.AddResponse;
 460         modify_result->dn = NULL;
 461         modify_result->resultcode = result;
 462         modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
 463         modify_result->referral = NULL;
 464
 465         talloc_free(local_ctx);
 466
 467         ldapsrv_queue_reply(call, modify_reply);
 468         return NT_STATUS_OK;
 469
 470 }
 471
 472 static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
 473 {
 474         struct ldap_AddRequest *req = &call->request->r.AddRequest;
 475         struct ldap_Result *add_result;
 476         struct ldapsrv_reply *add_reply;
 477         void *local_ctx;
 478         struct ldb_context *samdb = call->conn->ldb;
 479         struct ldb_message *msg = NULL;
 480         struct ldb_dn *dn;
 481         const char *errstr = NULL;
 482         int result = LDAP_SUCCESS;
 483         int ldb_ret;
 484         int i,j;
 485
 486         DEBUG(10, ("AddRequest"));
 487         DEBUGADD(10, (" dn: %s", req->dn));
 488
 489         local_ctx = talloc_named(call, 0, "AddRequest local memory context");
 490         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 491
 492         dn = ldb_dn_explode(local_ctx, req->dn);
 493         VALID_DN_SYNTAX(dn,1);
 494
 495         DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
 496
 497         msg = talloc(local_ctx, struct ldb_message);
 498         NT_STATUS_HAVE_NO_MEMORY(msg);
 499
 500         msg->dn = dn;
 501         msg->private_data = NULL;
 502         msg->num_elements = 0;
 503         msg->elements = NULL;
 504
 505         if (req->num_attributes > 0) {
 506                 msg->num_elements = req->num_attributes;
 507                 msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
 508                 NT_STATUS_HAVE_NO_MEMORY(msg->elements);
 509
 510                 for (i=0; i < msg->num_elements; i++) {
 511                         msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
 512                         msg->elements[i].flags = 0;
 513                         msg->elements[i].num_values = 0;
 514                         msg->elements[i].values = NULL;
 515
 516                         if (req->attributes[i].num_values > 0) {
 517                                 msg->elements[i].num_values = req->attributes[i].num_values;
 518                                 msg->elements[i].values = talloc_array(msg, struct ldb_val, msg->elements[i].num_values);
 519                                 NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
 520
 521                                 for (j=0; j < msg->elements[i].num_values; j++) {
 522                                         if (!(req->attributes[i].values[j].length > 0)) {
 523                                                 result = LDAP_OTHER;
 524                                                 errstr = "Empty attribute values are not allowed";
 525                                                 goto reply;
 526                                         }
 527                                         msg->elements[i].values[j].length = req->attributes[i].values[j].length;
 528                                         msg->elements[i].values[j].data = req->attributes[i].values[j].data;
 529                                 }
 530                         } else {
 531                                 result = LDAP_OTHER;
 532                                 errstr = "No attribute values are not allowed";
 533                                 goto reply;
 534                         }
 535                 }
 536         } else {
 537                 result = LDAP_OTHER;
 538                 errstr = "No attributes are not allowed";
 539                 goto reply;
 540         }
 541
 542 reply:
 543         add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
 544         NT_STATUS_HAVE_NO_MEMORY(add_reply);
 545
 546         if (result == LDAP_SUCCESS) {
 547                 ldb_ret = ldb_add(samdb, msg);
 548                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 549         }
 550
 551         add_result = &add_reply->msg->r.AddResponse;
 552         add_result->dn = NULL;
 553         add_result->resultcode = result;
 554         add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
 555         add_result->referral = NULL;
 556
 557         talloc_free(local_ctx);
 558
 559         ldapsrv_queue_reply(call, add_reply);
 560         return NT_STATUS_OK;
 561
 562 }
 563
 564 static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
 565 {
 566         struct ldap_DelRequest *req = &call->request->r.DelRequest;
 567         struct ldap_Result *del_result;
 568         struct ldapsrv_reply *del_reply;
 569         void *local_ctx;
 570         struct ldb_context *samdb = call->conn->ldb;
 571         struct ldb_dn *dn;
 572         const char *errstr = NULL;
 573         int result = LDAP_SUCCESS;
 574         int ldb_ret;
 575
 576         DEBUG(10, ("DelRequest"));
 577         DEBUGADD(10, (" dn: %s", req->dn));
 578
 579         local_ctx = talloc_named(call, 0, "DelRequest local memory context");
 580         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 581
 582         dn = ldb_dn_explode(local_ctx, req->dn);
 583         VALID_DN_SYNTAX(dn,1);
 584
 585         DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
 586
 587 reply:
 588         del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
 589         NT_STATUS_HAVE_NO_MEMORY(del_reply);
 590
 591         if (result == LDAP_SUCCESS) {
 592                 ldb_ret = ldb_delete(samdb, dn);
 593                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 594         }
 595
 596         del_result = &del_reply->msg->r.DelResponse;
 597         del_result->dn = NULL;
 598         del_result->resultcode = result;
 599         del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
 600         del_result->referral = NULL;
 601
 602         talloc_free(local_ctx);
 603
 604         ldapsrv_queue_reply(call, del_reply);
 605         return NT_STATUS_OK;
 606 }
 607
 608 static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
 609 {
 610         struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
 611         struct ldap_Result *modifydn;
 612         struct ldapsrv_reply *modifydn_r;
 613         void *local_ctx;
 614         struct ldb_context *samdb = call->conn->ldb;
 615         struct ldb_dn *olddn, *newdn=NULL, *newrdn;
 616         struct ldb_dn *parentdn = NULL;
 617         const char *errstr = NULL;
 618         int result = LDAP_SUCCESS;
 619         int ldb_ret;
 620
 621         DEBUG(10, ("ModifyDNRequrest"));
 622         DEBUGADD(10, (" dn: %s", req->dn));
 623         DEBUGADD(10, (" newrdn: %s", req->newrdn));
 624
 625         local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
 626         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 627
 628         olddn = ldb_dn_explode(local_ctx, req->dn);
 629         VALID_DN_SYNTAX(olddn, 2);
 630
 631         newrdn = ldb_dn_explode(local_ctx, req->newrdn);
 632         VALID_DN_SYNTAX(newrdn, 1);
 633
 634         DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
 635         DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
 636
 637         /* we can't handle the rename if we should not remove the old dn */
 638         if (!req->deleteolddn) {
 639                 result = LDAP_UNWILLING_TO_PERFORM;
 640                 errstr = "Old RDN must be deleted";
 641                 goto reply;
 642         }
 643
 644         if (newrdn->comp_num > 1) {
 645                 result = LDAP_NAMING_VIOLATION;
 646                 errstr = "Error new RDN invalid";
 647                 goto reply;
 648         }
 649
 650         if (req->newsuperior) {
 651                 parentdn = ldb_dn_explode(local_ctx, req->newsuperior);
 652                 VALID_DN_SYNTAX(parentdn, 0);
 653                 DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
 654
 655                 if (parentdn->comp_num < 1) {
 656                         result = LDAP_AFFECTS_MULTIPLE_DSAS;
 657                         errstr = "Error new Superior DN invalid";
 658                         goto reply;
 659                 }
 660         }
 661
 662         if (!parentdn) {
 663                 parentdn = ldb_dn_get_parent(local_ctx, olddn);
 664                 NT_STATUS_HAVE_NO_MEMORY(parentdn);
 665         }
 666
 667         newdn = ldb_dn_make_child(local_ctx, ldb_dn_get_rdn(local_ctx, newrdn), parentdn);
 668         NT_STATUS_HAVE_NO_MEMORY(newdn);
 669
 670 reply:
 671         modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
 672         NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
 673
 674         if (result == LDAP_SUCCESS) {
 675                 ldb_ret = ldb_rename(samdb, olddn, newdn);
 676                 result = map_ldb_error(samdb, ldb_ret, &errstr);
 677         }
 678
 679         modifydn = &modifydn_r->msg->r.ModifyDNResponse;
 680         modifydn->dn = NULL;
 681         modifydn->resultcode = result;
 682         modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
 683         modifydn->referral = NULL;
 684
 685         talloc_free(local_ctx);
 686
 687         ldapsrv_queue_reply(call, modifydn_r);
 688         return NT_STATUS_OK;
 689 }
 690
 691 static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
 692 {
 693         struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
 694         struct ldap_Result *compare;
 695         struct ldapsrv_reply *compare_r;
 696         void *local_ctx;
 697         struct ldb_context *samdb = call->conn->ldb;
 698         struct ldb_result *res = NULL;
 699         struct ldb_dn *dn;
 700         const char *attrs[1];
 701         const char *errstr = NULL;
 702         const char *filter = NULL;
 703         int result = LDAP_SUCCESS;
 704         int ldb_ret;
 705
 706         DEBUG(10, ("CompareRequest"));
 707         DEBUGADD(10, (" dn: %s", req->dn));
 708
 709         local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
 710         NT_STATUS_HAVE_NO_MEMORY(local_ctx);
 711
 712         dn = ldb_dn_explode(local_ctx, req->dn);
 713         VALID_DN_SYNTAX(dn, 1);
 714
 715         DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
 716         filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
 717                                  (int)req->value.length, req->value.data);
 718         NT_STATUS_HAVE_NO_MEMORY(filter);
 719
 720         DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
 721
 722         attrs[0] = NULL;
 723
 724 reply:
 725         compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
 726         NT_STATUS_HAVE_NO_MEMORY(compare_r);
 727
 728         if (result == LDAP_SUCCESS) {
 729                 ldb_ret = ldb_search(samdb, dn, LDB_SCOPE_BASE, filter, attrs, &res);
 730                 talloc_steal(samdb, res);
 731                 if (ldb_ret != LDB_SUCCESS) {
 732                         result = map_ldb_error(samdb, ldb_ret, &errstr);
 733                         DEBUG(10,("CompareRequest: error: %s\n", errstr));
 734                 } else if (res->count == 0) {
 735                         DEBUG(10,("CompareRequest: doesn't matched\n"));
 736                         result = LDAP_COMPARE_FALSE;
 737                         errstr = NULL;
 738                 } else if (res->count == 1) {
 739                         DEBUG(10,("CompareRequest: matched\n"));
 740                         result = LDAP_COMPARE_TRUE;
 741                         errstr = NULL;
 742                 } else if (res->count > 1) {
 743                         result = LDAP_OTHER;
 744                         errstr = "too many objects match";
 745                         DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
 746                 }
 747         }
 748
 749         compare = &compare_r->msg->r.CompareResponse;
 750         compare->dn = NULL;
 751         compare->resultcode = result;
 752         compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
 753         compare->referral = NULL;
 754
 755         talloc_free(local_ctx);
 756
 757         ldapsrv_queue_reply(call, compare_r);
 758         return NT_STATUS_OK;
 759 }
 760
 761 static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
 762 {
 763 /*      struct ldap_AbandonRequest *req = &call->request.r.AbandonRequest;*/
 764         DEBUG(10, ("AbandonRequest\n"));
 765         return NT_STATUS_OK;
 766 }
 767
 768 NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
 769 {
 770         switch(call->request->type) {
 771         case LDAP_TAG_BindRequest:
 772                 return ldapsrv_BindRequest(call);
 773         case LDAP_TAG_UnbindRequest:
 774                 return ldapsrv_UnbindRequest(call);
 775         case LDAP_TAG_SearchRequest:
 776                 return ldapsrv_SearchRequest(call);
 777         case LDAP_TAG_ModifyRequest:
 778                 return ldapsrv_ModifyRequest(call);
 779         case LDAP_TAG_AddRequest:
 780                 return ldapsrv_AddRequest(call);
 781         case LDAP_TAG_DelRequest:
 782                 return ldapsrv_DelRequest(call);
 783         case LDAP_TAG_ModifyDNRequest:
 784                 return ldapsrv_ModifyDNRequest(call);
 785         case LDAP_TAG_CompareRequest:
 786                 return ldapsrv_CompareRequest(call);
 787         case LDAP_TAG_AbandonRequest:
 788                 return ldapsrv_AbandonRequest(call);
 789         case LDAP_TAG_ExtendedRequest:
 790                 return ldapsrv_ExtendedRequest(call);
 791         default:
 792                 return ldapsrv_unwilling(call, 2);
 793         }
 794 }