/* $NetBSD: search.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $ */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 1998-2019 The OpenLDAP Foundation. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. * * A copy of this license is available in the file LICENSE in the * top-level directory of the distribution or, alternatively, at * . */ /* Portions Copyright (c) 1995 Regents of the University of Michigan. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that this notice is preserved and that due credit is given * to the University of Michigan at Ann Arbor. The name of the University * may not be used to endorse or promote products derived from this * software without specific prior written permission. This software * is provided ``as is'' without express or implied warranty. */ #include __RCSID("$NetBSD: search.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $"); #include "portable.h" #include #include #include #include "lutil.h" #include "slap.h" int do_search( Operation *op, /* info about the op to which we're responding */ SlapReply *rs /* all the response data we'll send */ ) { struct berval base = BER_BVNULL; ber_len_t siz, off, i; Debug( LDAP_DEBUG_TRACE, "%s do_search\n", op->o_log_prefix, 0, 0 ); /* * Parse the search request. It looks like this: * * SearchRequest := [APPLICATION 3] SEQUENCE { * baseObject DistinguishedName, * scope ENUMERATED { * baseObject (0), * singleLevel (1), * wholeSubtree (2), * subordinate (3) -- OpenLDAP extension * }, * derefAliases ENUMERATED { * neverDerefaliases (0), * derefInSearching (1), * derefFindingBaseObj (2), * alwaysDerefAliases (3) * }, * sizelimit INTEGER (0 .. 65535), * timelimit INTEGER (0 .. 65535), * attrsOnly BOOLEAN, * filter Filter, * attributes SEQUENCE OF AttributeType * } */ /* baseObject, scope, derefAliases, sizelimit, timelimit, attrsOnly */ if ( ber_scanf( op->o_ber, "{miiiib" /*}*/, &base, &op->ors_scope, &op->ors_deref, &op->ors_slimit, &op->ors_tlimit, &op->ors_attrsonly ) == LBER_ERROR ) { send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" ); rs->sr_err = SLAPD_DISCONNECT; goto return_results; } if ( op->ors_tlimit < 0 || op->ors_tlimit > SLAP_MAX_LIMIT ) { send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "invalid time limit" ); goto return_results; } if ( op->ors_slimit < 0 || op->ors_slimit > SLAP_MAX_LIMIT ) { send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "invalid size limit" ); goto return_results; } switch( op->ors_scope ) { case LDAP_SCOPE_BASE: case LDAP_SCOPE_ONELEVEL: case LDAP_SCOPE_SUBTREE: case LDAP_SCOPE_SUBORDINATE: break; default: send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "invalid scope" ); goto return_results; } switch( op->ors_deref ) { case LDAP_DEREF_NEVER: case LDAP_DEREF_FINDING: case LDAP_DEREF_SEARCHING: case LDAP_DEREF_ALWAYS: break; default: send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "invalid deref" ); goto return_results; } rs->sr_err = dnPrettyNormal( NULL, &base, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx ); if( rs->sr_err != LDAP_SUCCESS ) { Debug( LDAP_DEBUG_ANY, "%s do_search: invalid dn: \"%s\"\n", op->o_log_prefix, base.bv_val, 0 ); send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" ); goto return_results; } Debug( LDAP_DEBUG_ARGS, "SRCH \"%s\" %d %d", base.bv_val, op->ors_scope, op->ors_deref ); Debug( LDAP_DEBUG_ARGS, " %d %d %d\n", op->ors_slimit, op->ors_tlimit, op->ors_attrsonly); /* filter - returns a "normalized" version */ rs->sr_err = get_filter( op, op->o_ber, &op->ors_filter, &rs->sr_text ); if( rs->sr_err != LDAP_SUCCESS ) { if( rs->sr_err == SLAPD_DISCONNECT ) { rs->sr_err = LDAP_PROTOCOL_ERROR; send_ldap_disconnect( op, rs ); rs->sr_err = SLAPD_DISCONNECT; } else { send_ldap_result( op, rs ); } goto return_results; } filter2bv_x( op, op->ors_filter, &op->ors_filterstr ); Debug( LDAP_DEBUG_ARGS, " filter: %s\n", !BER_BVISEMPTY( &op->ors_filterstr ) ? op->ors_filterstr.bv_val : "empty", 0, 0 ); /* attributes */ siz = sizeof(AttributeName); off = offsetof(AttributeName,an_name); if ( ber_scanf( op->o_ber, "{M}}", &op->ors_attrs, &siz, off ) == LBER_ERROR ) { send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding attrs error" ); rs->sr_err = SLAPD_DISCONNECT; goto return_results; } for ( i=0; iors_attrs[i].an_desc = NULL; op->ors_attrs[i].an_oc = NULL; op->ors_attrs[i].an_flags = 0; if ( slap_bv2ad( &op->ors_attrs[i].an_name, &op->ors_attrs[i].an_desc, &dummy ) != LDAP_SUCCESS ) { if ( slap_bv2undef_ad( &op->ors_attrs[i].an_name, &op->ors_attrs[i].an_desc, &dummy, SLAP_AD_PROXIED|SLAP_AD_NOINSERT ) ) { struct berval *bv = &op->ors_attrs[i].an_name; /* RFC 4511 LDAPv3: All User Attributes */ if ( bvmatch( bv, slap_bv_all_user_attrs ) ) { continue; } /* RFC 3673 LDAPv3: All Operational Attributes */ if ( bvmatch( bv, slap_bv_all_operational_attrs ) ) { continue; } /* RFC 4529 LDAP: Requesting Attributes by Object Class */ if ( bv->bv_len > 1 && bv->bv_val[0] == '@' ) { /* FIXME: check if remaining is valid oc name? */ continue; } /* add more "exceptions" to RFC 4511 4.5.1.8. */ /* invalid attribute description? remove */ if ( ad_keystring( bv ) ) { /* NOTE: parsed in-place, don't modify; * rather add "1.1", which must be ignored */ BER_BVSTR( &op->ors_attrs[i].an_name, LDAP_NO_ATTRS ); } /* otherwise leave in place... */ } } } if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) { Debug( LDAP_DEBUG_ANY, "%s do_search: get_ctrls failed\n", op->o_log_prefix, 0, 0 ); goto return_results; } Debug( LDAP_DEBUG_ARGS, " attrs:", 0, 0, 0 ); if ( siz != 0 ) { for ( i = 0; iors_attrs[i].an_name.bv_val, 0, 0 ); } } Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 ); if ( StatslogTest( LDAP_DEBUG_STATS ) ) { char abuf[BUFSIZ/2], *ptr = abuf; unsigned len = 0, alen; sprintf(abuf, "scope=%d deref=%d", op->ors_scope, op->ors_deref); Statslog( LDAP_DEBUG_STATS, "%s SRCH base=\"%s\" %s filter=\"%s\"\n", op->o_log_prefix, op->o_req_dn.bv_val, abuf, op->ors_filterstr.bv_val, 0 ); for ( i = 0; iors_attrs[i].an_name.bv_len; if (alen >= sizeof(abuf)) { alen = sizeof(abuf)-1; } if (len && (len + 1 + alen >= sizeof(abuf))) { Statslog( LDAP_DEBUG_STATS, "%s SRCH attr=%s\n", op->o_log_prefix, abuf, 0, 0, 0 ); len = 0; ptr = abuf; } if (len) { *ptr++ = ' '; len++; } ptr = lutil_strncopy(ptr, op->ors_attrs[i].an_name.bv_val, alen); len += alen; *ptr = '\0'; } if (len) { Statslog( LDAP_DEBUG_STATS, "%s SRCH attr=%s\n", op->o_log_prefix, abuf, 0, 0, 0 ); } } op->o_bd = frontendDB; rs->sr_err = frontendDB->be_search( op, rs ); return_results:; if ( !BER_BVISNULL( &op->o_req_dn ) ) { slap_sl_free( op->o_req_dn.bv_val, op->o_tmpmemctx ); } if ( !BER_BVISNULL( &op->o_req_ndn ) ) { slap_sl_free( op->o_req_ndn.bv_val, op->o_tmpmemctx ); } if ( !BER_BVISNULL( &op->ors_filterstr ) ) { op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx ); } if ( op->ors_filter != NULL) { filter_free_x( op, op->ors_filter, 1 ); } if ( op->ors_attrs != NULL ) { op->o_tmpfree( op->ors_attrs, op->o_tmpmemctx ); } return rs->sr_err; } int fe_op_search( Operation *op, SlapReply *rs ) { BackendDB *bd = op->o_bd; if ( op->ors_scope == LDAP_SCOPE_BASE ) { Entry *entry = NULL; if ( BER_BVISEMPTY( &op->o_req_ndn ) ) { #ifdef LDAP_CONNECTIONLESS /* Ignore LDAPv2 CLDAP Root DSE queries */ if (op->o_protocol == LDAP_VERSION2 && op->o_conn->c_is_udp) { goto return_results; } #endif /* check restrictions */ if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) { send_ldap_result( op, rs ); goto return_results; } rs->sr_err = root_dse_info( op->o_conn, &entry, &rs->sr_text ); } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) { /* check restrictions */ if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) { send_ldap_result( op, rs ); goto return_results; } rs->sr_err = schema_info( &entry, &rs->sr_text ); } if( rs->sr_err != LDAP_SUCCESS ) { send_ldap_result( op, rs ); goto return_results; } else if ( entry != NULL ) { if ( get_assert( op ) && ( test_filter( op, entry, get_assertion( op )) != LDAP_COMPARE_TRUE )) { rs->sr_err = LDAP_ASSERTION_FAILED; goto fail1; } rs->sr_err = test_filter( op, entry, op->ors_filter ); if( rs->sr_err == LDAP_COMPARE_TRUE ) { /* note: we set no limits because either * no limit is specified, or at least 1 * is specified, and we're going to return * at most one entry */ op->ors_slimit = SLAP_NO_LIMIT; op->ors_tlimit = SLAP_NO_LIMIT; rs->sr_entry = entry; rs->sr_attrs = op->ors_attrs; rs->sr_operational_attrs = NULL; rs->sr_flags = 0; send_search_entry( op, rs ); rs->sr_entry = NULL; rs->sr_operational_attrs = NULL; } rs->sr_err = LDAP_SUCCESS; fail1: entry_free( entry ); send_ldap_result( op, rs ); goto return_results; } } if( BER_BVISEMPTY( &op->o_req_ndn ) && !BER_BVISEMPTY( &default_search_nbase ) ) { slap_sl_free( op->o_req_dn.bv_val, op->o_tmpmemctx ); slap_sl_free( op->o_req_ndn.bv_val, op->o_tmpmemctx ); ber_dupbv_x( &op->o_req_dn, &default_search_base, op->o_tmpmemctx ); ber_dupbv_x( &op->o_req_ndn, &default_search_nbase, op->o_tmpmemctx ); } /* * We could be serving multiple database backends. Select the * appropriate one, or send a referral to our "referral server" * if we don't hold it. */ op->o_bd = select_backend( &op->o_req_ndn, 1 ); if ( op->o_bd == NULL ) { rs->sr_ref = referral_rewrite( default_referral, NULL, &op->o_req_dn, op->ors_scope ); if (!rs->sr_ref) rs->sr_ref = default_referral; rs->sr_err = LDAP_REFERRAL; op->o_bd = bd; send_ldap_result( op, rs ); if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref ); rs->sr_ref = NULL; goto return_results; } /* check restrictions */ if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) { send_ldap_result( op, rs ); goto return_results; } /* check for referrals */ if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) { goto return_results; } if ( SLAP_SHADOW(op->o_bd) && get_dontUseCopy(op) ) { /* don't use shadow copy */ BerVarray defref = op->o_bd->be_update_refs ? op->o_bd->be_update_refs : default_referral; if( defref != NULL ) { rs->sr_ref = referral_rewrite( defref, NULL, &op->o_req_dn, op->ors_scope ); if( !rs->sr_ref) rs->sr_ref = defref; rs->sr_err = LDAP_REFERRAL; send_ldap_result( op, rs ); if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref ); } else { send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, "copy not used; no referral information available" ); } } else if ( op->o_bd->be_search ) { if ( limits_check( op, rs ) == 0 ) { /* actually do the search and send the result(s) */ (op->o_bd->be_search)( op, rs ); } /* else limits_check() sends error */ } else { send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, "operation not supported within namingContext" ); } return_results:; op->o_bd = bd; return rs->sr_err; }