1/* result.c - routines to send ldap results, errors, and referrals */ 2/* $OpenLDAP$ */ 3/* This work is part of OpenLDAP Software <http://www.openldap.org/>. 4 * 5 * Copyright 1998-2011 The OpenLDAP Foundation. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted only as authorized by the OpenLDAP 10 * Public License. 11 * 12 * A copy of this license is available in the file LICENSE in the 13 * top-level directory of the distribution or, alternatively, at 14 * <http://www.OpenLDAP.org/license.html>. 15 */ 16/* Portions Copyright (c) 1995 Regents of the University of Michigan. 17 * All rights reserved. 18 * 19 * Redistribution and use in source and binary forms are permitted 20 * provided that this notice is preserved and that due credit is given 21 * to the University of Michigan at Ann Arbor. The name of the University 22 * may not be used to endorse or promote products derived from this 23 * software without specific prior written permission. This software 24 * is provided ``as is'' without express or implied warranty. 25 */ 26 27#include "portable.h" 28 29#include <stdio.h> 30 31#include <ac/socket.h> 32#include <ac/errno.h> 33#include <ac/string.h> 34#include <ac/ctype.h> 35#include <ac/time.h> 36#include <ac/unistd.h> 37 38#include "slap.h" 39 40const struct berval slap_dummy_bv = BER_BVNULL; 41 42int slap_null_cb( Operation *op, SlapReply *rs ) 43{ 44 return 0; 45} 46 47int slap_freeself_cb( Operation *op, SlapReply *rs ) 48{ 49 assert( op->o_callback != NULL ); 50 51 op->o_tmpfree( op->o_callback, op->o_tmpmemctx ); 52 op->o_callback = NULL; 53 54 return SLAP_CB_CONTINUE; 55} 56 57static char *v2ref( BerVarray ref, const char *text ) 58{ 59 size_t len = 0, i = 0; 60 char *v2; 61 62 if(ref == NULL) { 63 if (text) { 64 return ch_strdup(text); 65 } else { 66 return NULL; 67 } 68 } 69 70 if ( text != NULL ) { 71 len = strlen( text ); 72 if (text[len-1] != '\n') { 73 i = 1; 74 } 75 } 76 77 v2 = ch_malloc( len+i+sizeof("Referral:") ); 78 79 if( text != NULL ) { 80 strcpy(v2, text); 81 if( i ) { 82 v2[len++] = '\n'; 83 } 84 } 85 strcpy( v2+len, "Referral:" ); 86 len += sizeof("Referral:"); 87 88 for( i=0; ref[i].bv_val != NULL; i++ ) { 89 v2 = ch_realloc( v2, len + ref[i].bv_len + 1 ); 90 v2[len-1] = '\n'; 91 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len ); 92 len += ref[i].bv_len; 93 if (ref[i].bv_val[ref[i].bv_len-1] != '/') { 94 ++len; 95 } 96 } 97 98 v2[len-1] = '\0'; 99 return v2; 100} 101 102ber_tag_t 103slap_req2res( ber_tag_t tag ) 104{ 105 switch( tag ) { 106 case LDAP_REQ_ADD: 107 case LDAP_REQ_BIND: 108 case LDAP_REQ_COMPARE: 109 case LDAP_REQ_EXTENDED: 110 case LDAP_REQ_MODIFY: 111 case LDAP_REQ_MODRDN: 112 tag++; 113 break; 114 115 case LDAP_REQ_DELETE: 116 tag = LDAP_RES_DELETE; 117 break; 118 119 case LDAP_REQ_ABANDON: 120 case LDAP_REQ_UNBIND: 121 tag = LBER_SEQUENCE; 122 break; 123 124 case LDAP_REQ_SEARCH: 125 tag = LDAP_RES_SEARCH_RESULT; 126 break; 127 128 default: 129 tag = LBER_SEQUENCE; 130 } 131 132 return tag; 133} 134 135/* SlapReply debugging, prodo-slap.h overrides it in OpenLDAP releases */ 136#if defined(LDAP_TEST) || (defined(USE_RS_ASSERT) && (USE_RS_ASSERT)) 137 138int rs_suppress_assert = 0; 139 140/* RS_ASSERT() helper function */ 141void rs_assert_(const char*file, unsigned line, const char*fn, const char*cond) 142{ 143 int no_assert = rs_suppress_assert, save_errno = errno; 144 const char *s; 145 146 if ( no_assert >= 0 ) { 147 if ( no_assert == 0 && (s = getenv( "NO_RS_ASSERT" )) && *s ) { 148 no_assert = rs_suppress_assert = atoi( s ); 149 } 150 if ( no_assert > 0 ) { 151 errno = save_errno; 152 return; 153 } 154 } 155 156#ifdef rs_assert_ /* proto-slap.h #defined away the fn parameter */ 157 fprintf( stderr,"%s:%u: " "RS_ASSERT(%s) failed.\n", file,line,cond ); 158#else 159 fprintf( stderr,"%s:%u: %s: RS_ASSERT(%s) failed.\n", file,line,fn,cond ); 160#endif 161 fflush( stderr ); 162 163 errno = save_errno; 164 /* $NO_RS_ASSERT > 0: ignore rs_asserts, 0: abort, < 0: just warn */ 165 if ( !no_assert /* from $NO_RS_ASSERT */ ) abort(); 166} 167 168/* SlapReply is consistent */ 169void 170(rs_assert_ok)( const SlapReply *rs ) 171{ 172 const slap_mask_t flags = rs->sr_flags; 173 174 if ( flags & REP_ENTRY_MASK ) { 175 RS_ASSERT( !(flags & REP_ENTRY_MUSTRELEASE) 176 || !(flags & (REP_ENTRY_MASK ^ REP_ENTRY_MUSTRELEASE)) ); 177 RS_ASSERT( rs->sr_entry != NULL ); 178 RS_ASSERT( (1 << rs->sr_type) & 179 ((1 << REP_SEARCH) | (1 << REP_SEARCHREF) | 180 (1 << REP_RESULT) | (1 << REP_GLUE_RESULT)) ); 181 } 182#if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */ 183 if ( (flags & (REP_MATCHED_MASK | REP_REF_MASK | REP_CTRLS_MASK)) ) { 184 RS_ASSERT( !(flags & REP_MATCHED_MASK) || rs->sr_matched ); 185 RS_ASSERT( !(flags & REP_CTRLS_MASK ) || rs->sr_ctrls ); 186 /* Note: LDAP_REFERRAL + !sr_ref is OK, becomes LDAP_NO_SUCH_OBJECT */ 187 } 188#if (USE_RS_ASSERT) > 2 189 if ( rs->sr_err == LDAP_SUCCESS ) { 190 RS_ASSERT( rs->sr_text == NULL ); 191 RS_ASSERT( rs->sr_matched == NULL ); 192 } 193#endif 194#endif 195} 196 197/* Ready for calling a new backend operation */ 198void 199(rs_assert_ready)( const SlapReply *rs ) 200{ 201 RS_ASSERT( !rs->sr_entry ); 202#if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */ 203 RS_ASSERT( !rs->sr_text ); 204 RS_ASSERT( !rs->sr_ref ); 205 RS_ASSERT( !rs->sr_matched ); 206 RS_ASSERT( !rs->sr_ctrls ); 207 RS_ASSERT( !rs->sr_flags ); 208#if (USE_RS_ASSERT) > 2 209 RS_ASSERT( rs->sr_err == LDAP_SUCCESS ); 210#endif 211#else 212 RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) ); 213#endif 214} 215 216/* Backend operation done */ 217void 218(rs_assert_done)( const SlapReply *rs ) 219{ 220#if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */ 221 RS_ASSERT( !(rs->sr_flags & ~(REP_ENTRY_MODIFIABLE|REP_NO_OPERATIONALS)) ); 222 rs_assert_ok( rs ); 223#else 224 RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MUSTFLUSH) ); 225#endif 226} 227 228#endif /* LDAP_TEST || USE_RS_ASSERT */ 229 230/* Reset a used SlapReply whose contents has been flushed (freed/released) */ 231void 232(rs_reinit)( SlapReply *rs, slap_reply_t type ) 233{ 234 rs_reinit( rs, type ); /* proto-slap.h macro */ 235} 236 237/* Obey and clear rs->sr_flags & REP_ENTRY_MASK. Clear sr_entry if freed. */ 238void 239rs_flush_entry( Operation *op, SlapReply *rs, slap_overinst *on ) 240{ 241 rs_assert_ok( rs ); 242 243 if ( (rs->sr_flags & REP_ENTRY_MUSTFLUSH) && rs->sr_entry != NULL ) { 244 if ( !(rs->sr_flags & REP_ENTRY_MUSTRELEASE) ) { 245 entry_free( rs->sr_entry ); 246 } else if ( on != NULL ) { 247 overlay_entry_release_ov( op, rs->sr_entry, 0, on ); 248 } else { 249 be_entry_release_rw( op, rs->sr_entry, 0 ); 250 } 251 rs->sr_entry = NULL; 252 } 253 254 rs->sr_flags &= ~REP_ENTRY_MASK; 255} 256 257/* Set rs->sr_entry after obeying and clearing sr_flags & REP_ENTRY_MASK. */ 258void 259rs_replace_entry( Operation *op, SlapReply *rs, slap_overinst *on, Entry *e ) 260{ 261 rs_flush_entry( op, rs, on ); 262 rs->sr_entry = e; 263} 264 265/* 266 * Ensure rs->sr_entry is modifiable, by duplicating it if necessary. 267 * Obey sr_flags. Set REP_ENTRY_<MODIFIABLE, and MUSTBEFREED if duplicated>. 268 * Return nonzero if rs->sr_entry was replaced. 269 */ 270int 271rs_entry2modifiable( Operation *op, SlapReply *rs, slap_overinst *on ) 272{ 273 if ( rs->sr_flags & REP_ENTRY_MODIFIABLE ) { 274 rs_assert_ok( rs ); 275 return 0; 276 } 277 rs_replace_entry( op, rs, on, entry_dup( rs->sr_entry )); 278 rs->sr_flags |= REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED; 279 return 1; 280} 281 282static long send_ldap_ber( 283 Operation *op, 284 BerElement *ber ) 285{ 286 Connection *conn = op->o_conn; 287 ber_len_t bytes; 288 long ret = 0; 289 290 ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes ); 291 292 /* write only one pdu at a time - wait til it's our turn */ 293 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex ); 294 if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) || 295 conn->c_writers < 0 ) { 296 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex ); 297 return 0; 298 } 299 300 conn->c_writers++; 301 302 while ( conn->c_writers > 0 && conn->c_writing ) { 303 ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex ); 304 } 305 306 /* connection was closed under us */ 307 if ( conn->c_writers < 0 ) { 308 /* we're the last waiter, let the closer continue */ 309 if ( conn->c_writers == -1 ) 310 ldap_pvt_thread_cond_signal( &conn->c_write1_cv ); 311 conn->c_writers++; 312 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex ); 313 return 0; 314 } 315 316 /* Our turn */ 317 conn->c_writing = 1; 318 319 /* write the pdu */ 320 while( 1 ) { 321 int err; 322 323 /* lock the connection */ 324 if ( ldap_pvt_thread_mutex_trylock( &conn->c_mutex )) { 325 if ( !connection_valid(conn)) { 326 ret = 0; 327 break; 328 } 329 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex ); 330 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex ); 331 if ( conn->c_writers < 0 ) { 332 ret = 0; 333 break; 334 } 335 continue; 336 } 337 338 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) { 339 ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); 340 ret = bytes; 341 break; 342 } 343 344 err = sock_errno(); 345 346 /* 347 * we got an error. if it's ewouldblock, we need to 348 * wait on the socket being writable. otherwise, figure 349 * it's a hard error and return. 350 */ 351 352 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n", 353 err, sock_errstr(err), 0 ); 354 355 if ( err != EWOULDBLOCK && err != EAGAIN ) { 356 conn->c_writers--; 357 conn->c_writing = 0; 358 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex ); 359 connection_closing( conn, "connection lost on write" ); 360 361 ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); 362 return -1; 363 } 364 365 /* wait for socket to be write-ready */ 366 ldap_pvt_thread_mutex_lock( &conn->c_write2_mutex ); 367 conn->c_writewaiter = 1; 368 slapd_set_write( conn->c_sd, 2 ); 369 370 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex ); 371 ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); 372 ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex ); 373 conn->c_writewaiter = 0; 374 ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex ); 375 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex ); 376 if ( conn->c_writers < 0 ) { 377 ret = 0; 378 break; 379 } 380 } 381 382 conn->c_writing = 0; 383 if ( conn->c_writers < 0 ) { 384 conn->c_writers++; 385 if ( !conn->c_writers ) 386 ldap_pvt_thread_cond_signal( &conn->c_write1_cv ); 387 } else { 388 conn->c_writers--; 389 ldap_pvt_thread_cond_signal( &conn->c_write1_cv ); 390 } 391 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex ); 392 393 return ret; 394} 395 396static int 397send_ldap_control( BerElement *ber, LDAPControl *c ) 398{ 399 int rc; 400 401 assert( c != NULL ); 402 403 rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid ); 404 405 if( c->ldctl_iscritical ) { 406 rc = ber_printf( ber, "b", 407 (ber_int_t) c->ldctl_iscritical ) ; 408 if( rc == -1 ) return rc; 409 } 410 411 if( c->ldctl_value.bv_val != NULL ) { 412 rc = ber_printf( ber, "O", &c->ldctl_value ); 413 if( rc == -1 ) return rc; 414 } 415 416 rc = ber_printf( ber, /*{*/"N}" ); 417 if( rc == -1 ) return rc; 418 419 return 0; 420} 421 422static int 423send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c ) 424{ 425 int rc; 426 427 if( c == NULL ) 428 return 0; 429 430 rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS ); 431 if( rc == -1 ) return rc; 432 433 for( ; *c != NULL; c++) { 434 rc = send_ldap_control( ber, *c ); 435 if( rc == -1 ) return rc; 436 } 437 438#ifdef SLAP_CONTROL_X_SORTEDRESULTS 439 /* this is a hack to avoid having to modify op->s_ctrls */ 440 if( o->o_sortedresults ) { 441 BerElementBuffer berbuf; 442 BerElement *sber = (BerElement *) &berbuf; 443 LDAPControl sorted; 444 BER_BVZERO( &sorted.ldctl_value ); 445 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE; 446 sorted.ldctl_iscritical = 0; 447 448 ber_init2( sber, NULL, LBER_USE_DER ); 449 450 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM ); 451 452 if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) { 453 return -1; 454 } 455 456 (void) ber_free_buf( sber ); 457 458 rc = send_ldap_control( ber, &sorted ); 459 if( rc == -1 ) return rc; 460 } 461#endif 462 463 rc = ber_printf( ber, /*{*/"N}" ); 464 465 return rc; 466} 467 468/* 469 * slap_response_play() 470 * 471 * plays the callback list; rationale: a callback can 472 * - remove itself from the list, by setting op->o_callback = NULL; 473 * malloc()'ed callbacks should free themselves from inside the 474 * sc_response() function. 475 * - replace itself with another (list of) callback(s), by setting 476 * op->o_callback = a new (list of) callback(s); in this case, it 477 * is the callback's responsibility to to append existing subsequent 478 * callbacks to the end of the list that is passed to the sc_response() 479 * function. 480 * - modify the list of subsequent callbacks by modifying the value 481 * of the sc_next field from inside the sc_response() function; this 482 * case does not require any handling from inside slap_response_play() 483 * 484 * To stop execution of the playlist, the sc_response() function must return 485 * a value different from SLAP_SC_CONTINUE. 486 * 487 * The same applies to slap_cleanup_play(); only, there is no means to stop 488 * execution of the playlist, since all cleanup functions must be called. 489 */ 490static int 491slap_response_play( 492 Operation *op, 493 SlapReply *rs ) 494{ 495 int rc; 496 497 slap_callback *sc = op->o_callback, **scp; 498 499 rc = SLAP_CB_CONTINUE; 500 for ( scp = ≻ *scp; ) { 501 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next; 502 503 op->o_callback = *scp; 504 if ( op->o_callback->sc_response ) { 505 rc = op->o_callback->sc_response( op, rs ); 506 if ( op->o_callback == NULL ) { 507 /* the callback has been removed; 508 * repair the list */ 509 *scp = sc_next; 510 sc_nextp = scp; 511 512 } else if ( op->o_callback != *scp ) { 513 /* a new callback has been inserted 514 * in place of the existing one; repair the list */ 515 *scp = op->o_callback; 516 sc_nextp = scp; 517 } 518 if ( rc != SLAP_CB_CONTINUE ) break; 519 } 520 scp = sc_nextp; 521 } 522 523 op->o_callback = sc; 524 return rc; 525} 526 527static int 528slap_cleanup_play( 529 Operation *op, 530 SlapReply *rs ) 531{ 532 slap_callback *sc = op->o_callback, **scp; 533 534 for ( scp = ≻ *scp; ) { 535 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next; 536 537 op->o_callback = *scp; 538 if ( op->o_callback->sc_cleanup ) { 539 (void)op->o_callback->sc_cleanup( op, rs ); 540 if ( op->o_callback == NULL ) { 541 /* the callback has been removed; 542 * repair the list */ 543 *scp = sc_next; 544 sc_nextp = scp; 545 546 } else if ( op->o_callback != *scp ) { 547 /* a new callback has been inserted 548 * after the existing one; repair the list */ 549 /* a new callback has been inserted 550 * in place of the existing one; repair the list */ 551 *scp = op->o_callback; 552 sc_nextp = scp; 553 } 554 /* don't care about the result; do all cleanup */ 555 } 556 scp = sc_nextp; 557 } 558 559 op->o_callback = sc; 560 return LDAP_SUCCESS; 561} 562 563static int 564send_ldap_response( 565 Operation *op, 566 SlapReply *rs ) 567{ 568 BerElementBuffer berbuf; 569 BerElement *ber = (BerElement *) &berbuf; 570 int rc = LDAP_SUCCESS; 571 long bytes; 572 573 /* op was actually aborted, bypass everything if client didn't Cancel */ 574 if (( rs->sr_err == SLAPD_ABANDON ) && !op->o_cancel ) { 575 rc = SLAPD_ABANDON; 576 goto clean2; 577 } 578 579 if ( op->o_callback ) { 580 rc = slap_response_play( op, rs ); 581 if ( rc != SLAP_CB_CONTINUE ) { 582 goto clean2; 583 } 584 } 585 586 /* op completed, connection aborted, bypass sending response */ 587 if ( op->o_abandon && !op->o_cancel ) { 588 rc = SLAPD_ABANDON; 589 goto clean2; 590 } 591 592#ifdef LDAP_CONNECTIONLESS 593 if (op->o_conn && op->o_conn->c_is_udp) 594 ber = op->o_res_ber; 595 else 596#endif 597 { 598 ber_init_w_nullc( ber, LBER_USE_DER ); 599 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx ); 600 } 601 602 rc = rs->sr_err; 603 if ( rc == SLAPD_ABANDON && op->o_cancel ) 604 rc = LDAP_CANCELLED; 605 606 Debug( LDAP_DEBUG_TRACE, 607 "send_ldap_response: msgid=%d tag=%lu err=%d\n", 608 rs->sr_msgid, rs->sr_tag, rc ); 609 610 if( rs->sr_ref ) { 611 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n", 612 rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL", 613 NULL, NULL ); 614 } 615 616#ifdef LDAP_CONNECTIONLESS 617 if (op->o_conn && op->o_conn->c_is_udp && 618 op->o_protocol == LDAP_VERSION2 ) 619 { 620 rc = ber_printf( ber, "t{ess" /*"}"*/, 621 rs->sr_tag, rc, 622 rs->sr_matched == NULL ? "" : rs->sr_matched, 623 rs->sr_text == NULL ? "" : rs->sr_text ); 624 } else 625#endif 626 if ( rs->sr_type == REP_INTERMEDIATE ) { 627 rc = ber_printf( ber, "{it{" /*"}}"*/, 628 rs->sr_msgid, rs->sr_tag ); 629 630 } else { 631 rc = ber_printf( ber, "{it{ess" /*"}}"*/, 632 rs->sr_msgid, rs->sr_tag, rc, 633 rs->sr_matched == NULL ? "" : rs->sr_matched, 634 rs->sr_text == NULL ? "" : rs->sr_text ); 635 } 636 637 if( rc != -1 ) { 638 if ( rs->sr_ref != NULL ) { 639 assert( rs->sr_err == LDAP_REFERRAL ); 640 rc = ber_printf( ber, "t{W}", 641 LDAP_TAG_REFERRAL, rs->sr_ref ); 642 } else { 643 assert( rs->sr_err != LDAP_REFERRAL ); 644 } 645 } 646 647 if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) { 648 rc = ber_printf( ber, "tO", 649 LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata ); 650 } 651 652 if( rc != -1 && 653 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE )) 654 { 655 if ( rs->sr_rspoid != NULL ) { 656 rc = ber_printf( ber, "ts", 657 rs->sr_type == REP_EXTENDED 658 ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID, 659 rs->sr_rspoid ); 660 } 661 if( rc != -1 && rs->sr_rspdata != NULL ) { 662 rc = ber_printf( ber, "tO", 663 rs->sr_type == REP_EXTENDED 664 ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE, 665 rs->sr_rspdata ); 666 } 667 } 668 669 if( rc != -1 ) { 670 rc = ber_printf( ber, /*"{"*/ "N}" ); 671 } 672 673 if( rc != -1 ) { 674 rc = send_ldap_controls( op, ber, rs->sr_ctrls ); 675 } 676 677 if( rc != -1 ) { 678 rc = ber_printf( ber, /*"{"*/ "N}" ); 679 } 680 681#ifdef LDAP_CONNECTIONLESS 682 if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2 683 && rc != -1 ) 684 { 685 rc = ber_printf( ber, /*"{"*/ "N}" ); 686 } 687#endif 688 689 if ( rc == -1 ) { 690 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 ); 691 692#ifdef LDAP_CONNECTIONLESS 693 if (!op->o_conn || op->o_conn->c_is_udp == 0) 694#endif 695 { 696 ber_free_buf( ber ); 697 } 698 goto cleanup; 699 } 700 701 /* send BER */ 702 bytes = send_ldap_ber( op, ber ); 703#ifdef LDAP_CONNECTIONLESS 704 if (!op->o_conn || op->o_conn->c_is_udp == 0) 705#endif 706 { 707 ber_free_buf( ber ); 708 } 709 710 if ( bytes < 0 ) { 711 Debug( LDAP_DEBUG_ANY, 712 "send_ldap_response: ber write failed\n", 713 0, 0, 0 ); 714 715 goto cleanup; 716 } 717 718 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex ); 719 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 ); 720 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes ); 721 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex ); 722 723cleanup:; 724 /* Tell caller that we did this for real, as opposed to being 725 * overridden by a callback 726 */ 727 rc = SLAP_CB_CONTINUE; 728 729clean2:; 730 if ( op->o_callback ) { 731 (void)slap_cleanup_play( op, rs ); 732 } 733 734 if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) { 735 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */ 736 if ( rs->sr_matched ) { 737 free( (char *)rs->sr_matched ); 738 rs->sr_matched = NULL; 739 } 740 } 741 742 if ( rs->sr_flags & REP_REF_MUSTBEFREED ) { 743 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */ 744 if ( rs->sr_ref ) { 745 ber_bvarray_free( rs->sr_ref ); 746 rs->sr_ref = NULL; 747 } 748 } 749 750 if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) { 751 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */ 752 if ( rs->sr_ctrls ) { 753 slap_free_ctrls( op, rs->sr_ctrls ); 754 rs->sr_ctrls = NULL; 755 } 756 } 757 758 return rc; 759} 760 761 762void 763send_ldap_disconnect( Operation *op, SlapReply *rs ) 764{ 765#define LDAP_UNSOLICITED_ERROR(e) \ 766 ( (e) == LDAP_PROTOCOL_ERROR \ 767 || (e) == LDAP_STRONG_AUTH_REQUIRED \ 768 || (e) == LDAP_UNAVAILABLE ) 769 770 Debug( LDAP_DEBUG_TRACE, 771 "send_ldap_disconnect %d:%s\n", 772 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL ); 773 assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) ); 774 775 /* TODO: Flush the entry if sr_type == REP_SEARCH/REP_SEARCHREF? */ 776 RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) ); 777 rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */ 778 779 rs->sr_type = REP_EXTENDED; 780 rs->sr_rspdata = NULL; 781 782 if ( op->o_protocol < LDAP_VERSION3 ) { 783 rs->sr_rspoid = NULL; 784 rs->sr_tag = slap_req2res( op->o_tag ); 785 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0; 786 787 } else { 788 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT; 789 rs->sr_tag = LDAP_RES_EXTENDED; 790 rs->sr_msgid = LDAP_RES_UNSOLICITED; 791 } 792 793 if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) { 794 Statslog( LDAP_DEBUG_STATS, 795 "%s DISCONNECT tag=%lu err=%d text=%s\n", 796 op->o_log_prefix, rs->sr_tag, rs->sr_err, 797 rs->sr_text ? rs->sr_text : "", 0 ); 798 } 799} 800 801void 802slap_send_ldap_result( Operation *op, SlapReply *rs ) 803{ 804 char *tmp = NULL; 805 const char *otext = rs->sr_text; 806 BerVarray oref = rs->sr_ref; 807 808 rs->sr_type = REP_RESULT; 809 810 /* Propagate Abandons so that cleanup callbacks can be processed */ 811 if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) 812 goto abandon; 813 814 Debug( LDAP_DEBUG_TRACE, 815 "send_ldap_result: %s p=%d\n", 816 op->o_log_prefix, op->o_protocol, 0 ); 817 Debug( LDAP_DEBUG_ARGS, 818 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n", 819 rs->sr_err, rs->sr_matched ? rs->sr_matched : "", 820 rs->sr_text ? rs->sr_text : "" ); 821 if( rs->sr_ref ) { 822 Debug( LDAP_DEBUG_ARGS, 823 "send_ldap_result: referral=\"%s\"\n", 824 rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL", 825 NULL, NULL ); 826 } 827 assert( !LDAP_API_ERROR( rs->sr_err ) ); 828 assert( rs->sr_err != LDAP_PARTIAL_RESULTS ); 829 830 if ( rs->sr_err == LDAP_REFERRAL ) { 831 if( op->o_domain_scope ) rs->sr_ref = NULL; 832 833 if( rs->sr_ref == NULL ) { 834 rs->sr_err = LDAP_NO_SUCH_OBJECT; 835 } else if ( op->o_protocol < LDAP_VERSION3 ) { 836 rs->sr_err = LDAP_PARTIAL_RESULTS; 837 } 838 } 839 840 if ( op->o_protocol < LDAP_VERSION3 ) { 841 tmp = v2ref( rs->sr_ref, rs->sr_text ); 842 rs->sr_text = tmp; 843 rs->sr_ref = NULL; 844 } 845 846abandon: 847 rs->sr_tag = slap_req2res( op->o_tag ); 848 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0; 849 850 if ( rs->sr_flags & REP_REF_MUSTBEFREED ) { 851 if ( rs->sr_ref == NULL ) { 852 rs->sr_flags ^= REP_REF_MUSTBEFREED; 853 ber_bvarray_free( oref ); 854 } 855 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */ 856 } 857 858 if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) { 859 if ( op->o_tag == LDAP_REQ_SEARCH ) { 860 Statslog( LDAP_DEBUG_STATS, 861 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n", 862 op->o_log_prefix, rs->sr_tag, rs->sr_err, 863 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" ); 864 } else { 865 Statslog( LDAP_DEBUG_STATS, 866 "%s RESULT tag=%lu err=%d text=%s\n", 867 op->o_log_prefix, rs->sr_tag, rs->sr_err, 868 rs->sr_text ? rs->sr_text : "", 0 ); 869 } 870 } 871 872 if( tmp != NULL ) ch_free(tmp); 873 rs->sr_text = otext; 874 rs->sr_ref = oref; 875} 876 877void 878send_ldap_sasl( Operation *op, SlapReply *rs ) 879{ 880 Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n", 881 rs->sr_err, 882 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL ); 883 884 RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) ); 885 rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */ 886 887 rs->sr_type = REP_SASL; 888 rs->sr_tag = slap_req2res( op->o_tag ); 889 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0; 890 891 if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) { 892 Statslog( LDAP_DEBUG_STATS, 893 "%s RESULT tag=%lu err=%d text=%s\n", 894 op->o_log_prefix, rs->sr_tag, rs->sr_err, 895 rs->sr_text ? rs->sr_text : "", 0 ); 896 } 897} 898 899void 900slap_send_ldap_extended( Operation *op, SlapReply *rs ) 901{ 902 Debug( LDAP_DEBUG_TRACE, 903 "send_ldap_extended: err=%d oid=%s len=%ld\n", 904 rs->sr_err, 905 rs->sr_rspoid ? rs->sr_rspoid : "", 906 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 ); 907 908 RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) ); 909 rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */ 910 911 rs->sr_type = REP_EXTENDED; 912 rs->sr_tag = slap_req2res( op->o_tag ); 913 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0; 914 915 if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) { 916 Statslog( LDAP_DEBUG_STATS, 917 "%s RESULT oid=%s err=%d text=%s\n", 918 op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "", 919 rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 ); 920 } 921} 922 923void 924slap_send_ldap_intermediate( Operation *op, SlapReply *rs ) 925{ 926 Debug( LDAP_DEBUG_TRACE, 927 "send_ldap_intermediate: err=%d oid=%s len=%ld\n", 928 rs->sr_err, 929 rs->sr_rspoid ? rs->sr_rspoid : "", 930 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 ); 931 932 RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) ); 933 rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */ 934 935 rs->sr_type = REP_INTERMEDIATE; 936 rs->sr_tag = LDAP_RES_INTERMEDIATE; 937 rs->sr_msgid = op->o_msgid; 938 if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) { 939 Statslog( LDAP_DEBUG_STATS2, 940 "%s INTERM oid=%s\n", 941 op->o_log_prefix, 942 rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 ); 943 } 944} 945 946/* 947 * returns: 948 * 949 * LDAP_SUCCESS entry sent 950 * LDAP_OTHER entry not sent (other) 951 * LDAP_INSUFFICIENT_ACCESS entry not sent (ACL) 952 * LDAP_UNAVAILABLE entry not sent (connection closed) 953 * LDAP_SIZELIMIT_EXCEEDED entry not sent (caller must send sizelimitExceeded) 954 */ 955 956int 957slap_send_search_entry( Operation *op, SlapReply *rs ) 958{ 959 BerElementBuffer berbuf; 960 BerElement *ber = (BerElement *) &berbuf; 961 Attribute *a; 962 int i, j, rc = LDAP_UNAVAILABLE, bytes; 963 int userattrs; 964 AccessControlState acl_state = ACL_STATE_INIT; 965 int attrsonly; 966 AttributeDescription *ad_entry = slap_schema.si_ad_entry; 967 968 /* a_flags: array of flags telling if the i-th element will be 969 * returned or filtered out 970 * e_flags: array of a_flags 971 */ 972 char **e_flags = NULL; 973 974 rs->sr_type = REP_SEARCH; 975 976 if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) { 977 rc = LDAP_SIZELIMIT_EXCEEDED; 978 goto error_return; 979 } 980 981 /* Every 64 entries, check for thread pool pause */ 982 if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) && 983 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 ) 984 { 985 rc = LDAP_BUSY; 986 goto error_return; 987 } 988 989 /* eventually will loop through generated operational attribute types 990 * currently implemented types include: 991 * entryDN, subschemaSubentry, and hasSubordinates */ 992 /* NOTE: moved before overlays callback circling because 993 * they may modify entry and other stuff in rs */ 994 /* check for special all operational attributes ("+") type */ 995 /* FIXME: maybe we could set this flag at the operation level; 996 * however, in principle the caller of send_search_entry() may 997 * change the attribute list at each call */ 998 rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs ); 999 1000 rc = backend_operational( op, rs ); 1001 if ( rc ) { 1002 goto error_return; 1003 } 1004 1005 if ( op->o_callback ) { 1006 rc = slap_response_play( op, rs ); 1007 if ( rc != SLAP_CB_CONTINUE ) { 1008 goto error_return; 1009 } 1010 } 1011 1012 Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n", 1013 op->o_connid, rs->sr_entry->e_name.bv_val, 1014 op->ors_attrsonly ? " (attrsOnly)" : "" ); 1015 1016 attrsonly = op->ors_attrsonly; 1017 1018 if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) { 1019 Debug( LDAP_DEBUG_ACL, 1020 "send_search_entry: conn %lu access to entry (%s) not allowed\n", 1021 op->o_connid, rs->sr_entry->e_name.bv_val, 0 ); 1022 1023 rc = LDAP_INSUFFICIENT_ACCESS; 1024 goto error_return; 1025 } 1026 1027 if ( op->o_res_ber ) { 1028 /* read back control or LDAP_CONNECTIONLESS */ 1029 ber = op->o_res_ber; 1030 } else { 1031 struct berval bv; 1032 1033 bv.bv_len = entry_flatsize( rs->sr_entry, 0 ); 1034 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx ); 1035 1036 ber_init2( ber, &bv, LBER_USE_DER ); 1037 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx ); 1038 } 1039 1040#ifdef LDAP_CONNECTIONLESS 1041 if ( op->o_conn && op->o_conn->c_is_udp ) { 1042 /* CONNECTIONLESS */ 1043 if ( op->o_protocol == LDAP_VERSION2 ) { 1044 rc = ber_printf(ber, "t{O{" /*}}*/, 1045 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name ); 1046 } else { 1047 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid, 1048 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name ); 1049 } 1050 } else 1051#endif 1052 if ( op->o_res_ber ) { 1053 /* read back control */ 1054 rc = ber_printf( ber, "t{O{" /*}}*/, 1055 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name ); 1056 } else { 1057 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid, 1058 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name ); 1059 } 1060 1061 if ( rc == -1 ) { 1062 Debug( LDAP_DEBUG_ANY, 1063 "send_search_entry: conn %lu ber_printf failed\n", 1064 op->o_connid, 0, 0 ); 1065 1066 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1067 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" ); 1068 rc = rs->sr_err; 1069 goto error_return; 1070 } 1071 1072 /* check for special all user attributes ("*") type */ 1073 userattrs = SLAP_USERATTRS( rs->sr_attr_flags ); 1074 1075 /* create an array of arrays of flags. Each flag corresponds 1076 * to particular value of attribute and equals 1 if value matches 1077 * to ValuesReturnFilter or 0 if not 1078 */ 1079 if ( op->o_vrFilter != NULL ) { 1080 int k = 0; 1081 size_t size; 1082 1083 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) { 1084 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++; 1085 } 1086 1087 size = i * sizeof(char *) + k; 1088 if ( size > 0 ) { 1089 char *a_flags; 1090 e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx ); 1091 if( e_flags == NULL ) { 1092 Debug( LDAP_DEBUG_ANY, 1093 "send_search_entry: conn %lu slap_sl_calloc failed\n", 1094 op->o_connid, 0, 0 ); 1095 ber_free( ber, 1 ); 1096 1097 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" ); 1098 goto error_return; 1099 } 1100 a_flags = (char *)(e_flags + i); 1101 memset( a_flags, 0, k ); 1102 for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) { 1103 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ); 1104 e_flags[i] = a_flags; 1105 a_flags += j; 1106 } 1107 1108 rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ; 1109 if ( rc == -1 ) { 1110 Debug( LDAP_DEBUG_ANY, "send_search_entry: " 1111 "conn %lu matched values filtering failed\n", 1112 op->o_connid, 0, 0 ); 1113 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1114 send_ldap_error( op, rs, LDAP_OTHER, 1115 "matched values filtering error" ); 1116 rc = rs->sr_err; 1117 goto error_return; 1118 } 1119 } 1120 } 1121 1122 for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) { 1123 AttributeDescription *desc = a->a_desc; 1124 int finish = 0; 1125 1126 if ( rs->sr_attrs == NULL ) { 1127 /* all user attrs request, skip operational attributes */ 1128 if( is_at_operational( desc->ad_type ) ) { 1129 continue; 1130 } 1131 1132 } else { 1133 /* specific attrs requested */ 1134 if ( is_at_operational( desc->ad_type ) ) { 1135 /* if not explicitly requested */ 1136 if ( !ad_inlist( desc, rs->sr_attrs )) { 1137 /* if not all op attrs requested, skip */ 1138 if ( !SLAP_OPATTRS( rs->sr_attr_flags )) 1139 continue; 1140 /* if DSA-specific and replicating, skip */ 1141 if ( op->o_sync != SLAP_CONTROL_NONE && 1142 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION ) 1143 continue; 1144 } 1145 } else { 1146 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) { 1147 continue; 1148 } 1149 } 1150 } 1151 1152 if ( attrsonly ) { 1153 if ( ! access_allowed( op, rs->sr_entry, desc, NULL, 1154 ACL_READ, &acl_state ) ) 1155 { 1156 Debug( LDAP_DEBUG_ACL, "send_search_entry: " 1157 "conn %lu access to attribute %s not allowed\n", 1158 op->o_connid, desc->ad_cname.bv_val, 0 ); 1159 continue; 1160 } 1161 1162 if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) { 1163 Debug( LDAP_DEBUG_ANY, 1164 "send_search_entry: conn %lu ber_printf failed\n", 1165 op->o_connid, 0, 0 ); 1166 1167 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1168 send_ldap_error( op, rs, LDAP_OTHER, 1169 "encoding description error"); 1170 rc = rs->sr_err; 1171 goto error_return; 1172 } 1173 finish = 1; 1174 1175 } else { 1176 int first = 1; 1177 for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) { 1178 if ( ! access_allowed( op, rs->sr_entry, 1179 desc, &a->a_nvals[i], ACL_READ, &acl_state ) ) 1180 { 1181 Debug( LDAP_DEBUG_ACL, 1182 "send_search_entry: conn %lu " 1183 "access to attribute %s, value #%d not allowed\n", 1184 op->o_connid, desc->ad_cname.bv_val, i ); 1185 1186 continue; 1187 } 1188 1189 if ( op->o_vrFilter && e_flags[j][i] == 0 ){ 1190 continue; 1191 } 1192 1193 if ( first ) { 1194 first = 0; 1195 finish = 1; 1196 if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) { 1197 Debug( LDAP_DEBUG_ANY, 1198 "send_search_entry: conn %lu ber_printf failed\n", 1199 op->o_connid, 0, 0 ); 1200 1201 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1202 send_ldap_error( op, rs, LDAP_OTHER, 1203 "encoding description error"); 1204 rc = rs->sr_err; 1205 goto error_return; 1206 } 1207 } 1208 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) { 1209 Debug( LDAP_DEBUG_ANY, 1210 "send_search_entry: conn %lu " 1211 "ber_printf failed.\n", op->o_connid, 0, 0 ); 1212 1213 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1214 send_ldap_error( op, rs, LDAP_OTHER, 1215 "encoding values error" ); 1216 rc = rs->sr_err; 1217 goto error_return; 1218 } 1219 } 1220 } 1221 1222 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) { 1223 Debug( LDAP_DEBUG_ANY, 1224 "send_search_entry: conn %lu ber_printf failed\n", 1225 op->o_connid, 0, 0 ); 1226 1227 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1228 send_ldap_error( op, rs, LDAP_OTHER, "encode end error" ); 1229 rc = rs->sr_err; 1230 goto error_return; 1231 } 1232 } 1233 1234 /* NOTE: moved before overlays callback circling because 1235 * they may modify entry and other stuff in rs */ 1236 if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) { 1237 int k = 0; 1238 size_t size; 1239 1240 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) { 1241 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++; 1242 } 1243 1244 size = i * sizeof(char *) + k; 1245 if ( size > 0 ) { 1246 char *a_flags, **tmp; 1247 1248 /* 1249 * Reuse previous memory - we likely need less space 1250 * for operational attributes 1251 */ 1252 tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k, 1253 op->o_tmpmemctx ); 1254 if ( tmp == NULL ) { 1255 Debug( LDAP_DEBUG_ANY, 1256 "send_search_entry: conn %lu " 1257 "not enough memory " 1258 "for matched values filtering\n", 1259 op->o_connid, 0, 0 ); 1260 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1261 send_ldap_error( op, rs, LDAP_OTHER, 1262 "not enough memory for matched values filtering" ); 1263 goto error_return; 1264 } 1265 e_flags = tmp; 1266 a_flags = (char *)(e_flags + i); 1267 memset( a_flags, 0, k ); 1268 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) { 1269 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ); 1270 e_flags[i] = a_flags; 1271 a_flags += j; 1272 } 1273 rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ; 1274 1275 if ( rc == -1 ) { 1276 Debug( LDAP_DEBUG_ANY, 1277 "send_search_entry: conn %lu " 1278 "matched values filtering failed\n", 1279 op->o_connid, 0, 0); 1280 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1281 send_ldap_error( op, rs, LDAP_OTHER, 1282 "matched values filtering error" ); 1283 rc = rs->sr_err; 1284 goto error_return; 1285 } 1286 } 1287 } 1288 1289 for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) { 1290 AttributeDescription *desc = a->a_desc; 1291 1292 if ( rs->sr_attrs == NULL ) { 1293 /* all user attrs request, skip operational attributes */ 1294 if( is_at_operational( desc->ad_type ) ) { 1295 continue; 1296 } 1297 1298 } else { 1299 /* specific attrs requested */ 1300 if( is_at_operational( desc->ad_type ) ) { 1301 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) && 1302 !ad_inlist( desc, rs->sr_attrs ) ) 1303 { 1304 continue; 1305 } 1306 /* if DSA-specific and replicating, skip */ 1307 if ( op->o_sync != SLAP_CONTROL_NONE && 1308 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION ) 1309 continue; 1310 } else { 1311 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) { 1312 continue; 1313 } 1314 } 1315 } 1316 1317 if ( ! access_allowed( op, rs->sr_entry, desc, NULL, 1318 ACL_READ, &acl_state ) ) 1319 { 1320 Debug( LDAP_DEBUG_ACL, 1321 "send_search_entry: conn %lu " 1322 "access to attribute %s not allowed\n", 1323 op->o_connid, desc->ad_cname.bv_val, 0 ); 1324 1325 continue; 1326 } 1327 1328 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname ); 1329 if ( rc == -1 ) { 1330 Debug( LDAP_DEBUG_ANY, 1331 "send_search_entry: conn %lu " 1332 "ber_printf failed\n", op->o_connid, 0, 0 ); 1333 1334 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1335 send_ldap_error( op, rs, LDAP_OTHER, 1336 "encoding description error" ); 1337 rc = rs->sr_err; 1338 goto error_return; 1339 } 1340 1341 if ( ! attrsonly ) { 1342 for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) { 1343 if ( ! access_allowed( op, rs->sr_entry, 1344 desc, &a->a_vals[i], ACL_READ, &acl_state ) ) 1345 { 1346 Debug( LDAP_DEBUG_ACL, 1347 "send_search_entry: conn %lu " 1348 "access to %s, value %d not allowed\n", 1349 op->o_connid, desc->ad_cname.bv_val, i ); 1350 1351 continue; 1352 } 1353 1354 if ( op->o_vrFilter && e_flags[j][i] == 0 ){ 1355 continue; 1356 } 1357 1358 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) { 1359 Debug( LDAP_DEBUG_ANY, 1360 "send_search_entry: conn %lu ber_printf failed\n", 1361 op->o_connid, 0, 0 ); 1362 1363 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1364 send_ldap_error( op, rs, LDAP_OTHER, 1365 "encoding values error" ); 1366 rc = rs->sr_err; 1367 goto error_return; 1368 } 1369 } 1370 } 1371 1372 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) { 1373 Debug( LDAP_DEBUG_ANY, 1374 "send_search_entry: conn %lu ber_printf failed\n", 1375 op->o_connid, 0, 0 ); 1376 1377 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1378 send_ldap_error( op, rs, LDAP_OTHER, "encode end error" ); 1379 rc = rs->sr_err; 1380 goto error_return; 1381 } 1382 } 1383 1384 /* free e_flags */ 1385 if ( e_flags ) { 1386 slap_sl_free( e_flags, op->o_tmpmemctx ); 1387 e_flags = NULL; 1388 } 1389 1390 rc = ber_printf( ber, /*{{*/ "}N}" ); 1391 1392 if( rc != -1 ) { 1393 rc = send_ldap_controls( op, ber, rs->sr_ctrls ); 1394 } 1395 1396 if( rc != -1 ) { 1397#ifdef LDAP_CONNECTIONLESS 1398 if( op->o_conn && op->o_conn->c_is_udp ) { 1399 if ( op->o_protocol != LDAP_VERSION2 ) { 1400 rc = ber_printf( ber, /*{*/ "N}" ); 1401 } 1402 } else 1403#endif 1404 if ( op->o_res_ber == NULL ) { 1405 rc = ber_printf( ber, /*{*/ "N}" ); 1406 } 1407 } 1408 1409 if ( rc == -1 ) { 1410 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 ); 1411 1412 if ( op->o_res_ber == NULL ) ber_free_buf( ber ); 1413 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" ); 1414 rc = rs->sr_err; 1415 goto error_return; 1416 } 1417 1418 Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n", 1419 op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 ); 1420 1421 rs_flush_entry( op, rs, NULL ); 1422 1423 if ( op->o_res_ber == NULL ) { 1424 bytes = send_ldap_ber( op, ber ); 1425 ber_free_buf( ber ); 1426 1427 if ( bytes < 0 ) { 1428 Debug( LDAP_DEBUG_ANY, 1429 "send_search_entry: conn %lu ber write failed.\n", 1430 op->o_connid, 0, 0 ); 1431 1432 rc = LDAP_UNAVAILABLE; 1433 goto error_return; 1434 } 1435 rs->sr_nentries++; 1436 1437 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex ); 1438 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes ); 1439 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 ); 1440 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 ); 1441 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex ); 1442 } 1443 1444 Debug( LDAP_DEBUG_TRACE, 1445 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 ); 1446 1447 rc = LDAP_SUCCESS; 1448 1449error_return:; 1450 if ( op->o_callback ) { 1451 (void)slap_cleanup_play( op, rs ); 1452 } 1453 1454 if ( e_flags ) { 1455 slap_sl_free( e_flags, op->o_tmpmemctx ); 1456 } 1457 1458 /* FIXME: Can break if rs now contains an extended response */ 1459 if ( rs->sr_operational_attrs ) { 1460 attrs_free( rs->sr_operational_attrs ); 1461 rs->sr_operational_attrs = NULL; 1462 } 1463 rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED; 1464 1465 if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) { 1466 rs_flush_entry( op, rs, NULL ); 1467 } else { 1468 RS_ASSERT( (rs->sr_flags & REP_ENTRY_MASK) == 0 ); 1469 } 1470 1471 if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) { 1472 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */ 1473 if ( rs->sr_ctrls ) { 1474 slap_free_ctrls( op, rs->sr_ctrls ); 1475 rs->sr_ctrls = NULL; 1476 } 1477 } 1478 1479 return( rc ); 1480} 1481 1482int 1483slap_send_search_reference( Operation *op, SlapReply *rs ) 1484{ 1485 BerElementBuffer berbuf; 1486 BerElement *ber = (BerElement *) &berbuf; 1487 int rc = 0; 1488 int bytes; 1489 char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)"; 1490 1491 AttributeDescription *ad_ref = slap_schema.si_ad_ref; 1492 AttributeDescription *ad_entry = slap_schema.si_ad_entry; 1493 1494 rs->sr_type = REP_SEARCHREF; 1495 if ( op->o_callback ) { 1496 rc = slap_response_play( op, rs ); 1497 if ( rc != SLAP_CB_CONTINUE ) { 1498 goto rel; 1499 } 1500 } 1501 1502 Debug( LDAP_DEBUG_TRACE, 1503 "=> send_search_reference: dn=\"%s\"\n", 1504 edn, 0, 0 ); 1505 1506 if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry, 1507 ad_entry, NULL, ACL_READ, NULL ) ) 1508 { 1509 Debug( LDAP_DEBUG_ACL, 1510 "send_search_reference: access to entry not allowed\n", 1511 0, 0, 0 ); 1512 rc = 1; 1513 goto rel; 1514 } 1515 1516 if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry, 1517 ad_ref, NULL, ACL_READ, NULL ) ) 1518 { 1519 Debug( LDAP_DEBUG_ACL, 1520 "send_search_reference: access " 1521 "to reference not allowed\n", 1522 0, 0, 0 ); 1523 rc = 1; 1524 goto rel; 1525 } 1526 1527 if( op->o_domain_scope ) { 1528 Debug( LDAP_DEBUG_ANY, 1529 "send_search_reference: domainScope control in (%s)\n", 1530 edn, 0, 0 ); 1531 rc = 0; 1532 goto rel; 1533 } 1534 1535 if( rs->sr_ref == NULL ) { 1536 Debug( LDAP_DEBUG_ANY, 1537 "send_search_reference: null ref in (%s)\n", 1538 edn, 0, 0 ); 1539 rc = 1; 1540 goto rel; 1541 } 1542 1543 if( op->o_protocol < LDAP_VERSION3 ) { 1544 rc = 0; 1545 /* save the references for the result */ 1546 if( rs->sr_ref[0].bv_val != NULL ) { 1547 if( value_add( &rs->sr_v2ref, rs->sr_ref ) ) 1548 rc = LDAP_OTHER; 1549 } 1550 goto rel; 1551 } 1552 1553#ifdef LDAP_CONNECTIONLESS 1554 if( op->o_conn && op->o_conn->c_is_udp ) { 1555 ber = op->o_res_ber; 1556 } else 1557#endif 1558 { 1559 ber_init_w_nullc( ber, LBER_USE_DER ); 1560 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx ); 1561 } 1562 1563 rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid, 1564 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref ); 1565 1566 if( rc != -1 ) { 1567 rc = send_ldap_controls( op, ber, rs->sr_ctrls ); 1568 } 1569 1570 if( rc != -1 ) { 1571 rc = ber_printf( ber, /*"{"*/ "N}" ); 1572 } 1573 1574 if ( rc == -1 ) { 1575 Debug( LDAP_DEBUG_ANY, 1576 "send_search_reference: ber_printf failed\n", 0, 0, 0 ); 1577 1578#ifdef LDAP_CONNECTIONLESS 1579 if (!op->o_conn || op->o_conn->c_is_udp == 0) 1580#endif 1581 ber_free_buf( ber ); 1582 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" ); 1583 goto rel; 1584 } 1585 1586 rc = 0; 1587 rs_flush_entry( op, rs, NULL ); 1588 1589#ifdef LDAP_CONNECTIONLESS 1590 if (!op->o_conn || op->o_conn->c_is_udp == 0) { 1591#endif 1592 bytes = send_ldap_ber( op, ber ); 1593 ber_free_buf( ber ); 1594 1595 if ( bytes < 0 ) { 1596 rc = LDAP_UNAVAILABLE; 1597 } else { 1598 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex ); 1599 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes ); 1600 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 ); 1601 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 ); 1602 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex ); 1603 } 1604#ifdef LDAP_CONNECTIONLESS 1605 } 1606#endif 1607 if ( rs->sr_ref != NULL ) { 1608 int r; 1609 1610 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) { 1611 Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n", 1612 op->o_log_prefix, r, rs->sr_ref[0].bv_val, 1613 0, 0 ); 1614 } 1615 1616 } else { 1617 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n", 1618 op->o_log_prefix, 0, 0, 0, 0 ); 1619 } 1620 1621 Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 ); 1622 1623 if ( 0 ) { 1624rel: 1625 rs_flush_entry( op, rs, NULL ); 1626 } 1627 1628 if ( op->o_callback ) { 1629 (void)slap_cleanup_play( op, rs ); 1630 } 1631 1632 if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) { 1633 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */ 1634 if ( rs->sr_ctrls ) { 1635 slap_free_ctrls( op, rs->sr_ctrls ); 1636 rs->sr_ctrls = NULL; 1637 } 1638 } 1639 1640 return rc; 1641} 1642 1643int 1644str2result( 1645 char *s, 1646 int *code, 1647 char **matched, 1648 char **info ) 1649{ 1650 int rc; 1651 char *c; 1652 1653 *code = LDAP_SUCCESS; 1654 *matched = NULL; 1655 *info = NULL; 1656 1657 if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) { 1658 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n", 1659 s, 0, 0 ); 1660 1661 return( -1 ); 1662 } 1663 1664 rc = 0; 1665 while ( (s = strchr( s, '\n' )) != NULL ) { 1666 *s++ = '\0'; 1667 if ( *s == '\0' ) { 1668 break; 1669 } 1670 if ( (c = strchr( s, ':' )) != NULL ) { 1671 c++; 1672 } 1673 1674 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) { 1675 char *next = NULL; 1676 long retcode; 1677 1678 if ( c == NULL ) { 1679 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n", 1680 s, 0, 0 ); 1681 rc = -1; 1682 continue; 1683 } 1684 1685 while ( isspace( (unsigned char) c[ 0 ] ) ) c++; 1686 if ( c[ 0 ] == '\0' ) { 1687 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n", 1688 s, 0, 0 ); 1689 rc = -1; 1690 continue; 1691 } 1692 1693 retcode = strtol( c, &next, 10 ); 1694 if ( next == NULL || next == c ) { 1695 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n", 1696 s, 0, 0 ); 1697 rc = -1; 1698 continue; 1699 } 1700 1701 while ( isspace( (unsigned char) next[ 0 ] ) && next[ 0 ] != '\n' ) 1702 next++; 1703 if ( next[ 0 ] != '\0' && next[ 0 ] != '\n' ) { 1704 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n", 1705 s, 0, 0 ); 1706 rc = -1; 1707 continue; 1708 } 1709 1710 /* FIXME: what if it's larger than max int? */ 1711 *code = (int)retcode; 1712 1713 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) { 1714 if ( c != NULL ) { 1715 *matched = c; 1716 } 1717 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) { 1718 if ( c != NULL ) { 1719 *info = c; 1720 } 1721 } else { 1722 Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n", 1723 s, 0, 0 ); 1724 1725 rc = -1; 1726 } 1727 } 1728 1729 return( rc ); 1730} 1731 1732int slap_read_controls( 1733 Operation *op, 1734 SlapReply *rs, 1735 Entry *e, 1736 const struct berval *oid, 1737 LDAPControl **ctrl ) 1738{ 1739 int rc; 1740 struct berval bv; 1741 BerElementBuffer berbuf; 1742 BerElement *ber = (BerElement *) &berbuf; 1743 LDAPControl c; 1744 Operation myop; 1745 1746 Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n", 1747 op->o_log_prefix, oid->bv_val, e->e_dn ); 1748 1749 rs->sr_entry = e; 1750 rs->sr_attrs = ( oid == &slap_pre_read_bv ) ? 1751 op->o_preread_attrs : op->o_postread_attrs; 1752 1753 bv.bv_len = entry_flatsize( rs->sr_entry, 0 ); 1754 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx ); 1755 1756 ber_init2( ber, &bv, LBER_USE_DER ); 1757 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx ); 1758 1759 /* create new operation */ 1760 myop = *op; 1761 /* FIXME: o_bd needed for ACL */ 1762 myop.o_bd = op->o_bd; 1763 myop.o_res_ber = ber; 1764 myop.o_callback = NULL; 1765 myop.ors_slimit = 1; 1766 myop.ors_attrsonly = 0; 1767 1768 rc = slap_send_search_entry( &myop, rs ); 1769 if( rc ) return rc; 1770 1771 rc = ber_flatten2( ber, &c.ldctl_value, 0 ); 1772 1773 if( rc == -1 ) return LDAP_OTHER; 1774 1775 c.ldctl_oid = oid->bv_val; 1776 c.ldctl_iscritical = 0; 1777 1778 if ( *ctrl == NULL ) { 1779 /* first try */ 1780 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL ); 1781 } else { 1782 /* retry: free previous try */ 1783 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx ); 1784 } 1785 1786 **ctrl = c; 1787 return LDAP_SUCCESS; 1788} 1789 1790/* Map API errors to protocol errors... */ 1791int 1792slap_map_api2result( SlapReply *rs ) 1793{ 1794 switch(rs->sr_err) { 1795 case LDAP_SERVER_DOWN: 1796 return LDAP_UNAVAILABLE; 1797 case LDAP_LOCAL_ERROR: 1798 return LDAP_OTHER; 1799 case LDAP_ENCODING_ERROR: 1800 case LDAP_DECODING_ERROR: 1801 return LDAP_PROTOCOL_ERROR; 1802 case LDAP_TIMEOUT: 1803 return LDAP_UNAVAILABLE; 1804 case LDAP_AUTH_UNKNOWN: 1805 return LDAP_AUTH_METHOD_NOT_SUPPORTED; 1806 case LDAP_FILTER_ERROR: 1807 rs->sr_text = "Filter error"; 1808 return LDAP_OTHER; 1809 case LDAP_USER_CANCELLED: 1810 rs->sr_text = "User cancelled"; 1811 return LDAP_OTHER; 1812 case LDAP_PARAM_ERROR: 1813 return LDAP_PROTOCOL_ERROR; 1814 case LDAP_NO_MEMORY: 1815 return LDAP_OTHER; 1816 case LDAP_CONNECT_ERROR: 1817 return LDAP_UNAVAILABLE; 1818 case LDAP_NOT_SUPPORTED: 1819 return LDAP_UNWILLING_TO_PERFORM; 1820 case LDAP_CONTROL_NOT_FOUND: 1821 return LDAP_PROTOCOL_ERROR; 1822 case LDAP_NO_RESULTS_RETURNED: 1823 return LDAP_NO_SUCH_OBJECT; 1824 case LDAP_MORE_RESULTS_TO_RETURN: 1825 rs->sr_text = "More results to return"; 1826 return LDAP_OTHER; 1827 case LDAP_CLIENT_LOOP: 1828 case LDAP_REFERRAL_LIMIT_EXCEEDED: 1829 return LDAP_LOOP_DETECT; 1830 default: 1831 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER; 1832 return rs->sr_err; 1833 } 1834} 1835 1836 1837slap_mask_t 1838slap_attr_flags( AttributeName *an ) 1839{ 1840 slap_mask_t flags = SLAP_ATTRS_UNDEFINED; 1841 1842 if ( an == NULL ) { 1843 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES ); 1844 1845 } else { 1846 flags |= an_find( an, slap_bv_all_operational_attrs ) 1847 ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO; 1848 flags |= an_find( an, slap_bv_all_user_attrs ) 1849 ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO; 1850 } 1851 1852 return flags; 1853} 1854