summaryrefslogtreecommitdiffstats
path: root/servers/slapd/search.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:35:32 +0000
commit5ea77a75dd2d2158401331879f3c8f47940a732c (patch)
treed89dc06e9f4850a900f161e25f84e922c4f86cc8 /servers/slapd/search.c
parentInitial commit. (diff)
downloadopenldap-5ea77a75dd2d2158401331879f3c8f47940a732c.tar.xz
openldap-5ea77a75dd2d2158401331879f3c8f47940a732c.zip
Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servers/slapd/search.c')
-rw-r--r--servers/slapd/search.c439
1 files changed, 439 insertions, 0 deletions
diff --git a/servers/slapd/search.c b/servers/slapd/search.c
new file mode 100644
index 0000000..7846f0f
--- /dev/null
+++ b/servers/slapd/search.c
@@ -0,0 +1,439 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 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
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* 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 "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#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 );
+ /*
+ * 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 );
+ send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
+ goto return_results;
+ }
+
+ Debug( LDAP_DEBUG_ARGS, "SRCH \"%s\" %d %d %d %d %d\n",
+ base.bv_val, op->ors_scope, op->ors_deref,
+ 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" );
+
+ /* 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; i<siz; i++ ) {
+ const char *dummy; /* ignore msgs from bv2ad */
+ op->ors_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 );
+ goto return_results;
+ }
+
+ if (LogTest( LDAP_DEBUG_ARGS ) ) {
+ char abuf[BUFSIZ/2], *ptr = abuf;
+ unsigned len = 0, alen;
+
+ if ( !siz ) {
+ len = 1;
+ abuf[0] = '\0';
+ }
+ for ( i = 0; i<siz; i++ ) {
+ alen = op->ors_attrs[i].an_name.bv_len;
+ if (alen >= sizeof(abuf)) {
+ alen = sizeof(abuf)-1;
+ }
+ if (len && (len + 1 + alen >= sizeof(abuf))) {
+ Debug( LDAP_DEBUG_ARGS, " attrs: %s\n", abuf );
+ 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) {
+ Debug( LDAP_DEBUG_ARGS, " attrs: %s\n", abuf );
+ }
+ }
+
+ if (LogTest( 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);
+ Debug( 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 );
+
+ for ( i = 0; i<siz; i++ ) {
+ alen = op->ors_attrs[i].an_name.bv_len;
+ if (alen >= sizeof(abuf)) {
+ alen = sizeof(abuf)-1;
+ }
+ if (len && (len + 1 + alen >= sizeof(abuf))) {
+ Debug( LDAP_DEBUG_STATS, "%s SRCH attr=%s\n",
+ op->o_log_prefix, abuf );
+ 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) {
+ Debug( LDAP_DEBUG_STATS, "%s SRCH attr=%s\n",
+ op->o_log_prefix, abuf );
+ }
+ }
+
+ op->o_bd = frontendDB;
+ rs->sr_err = frontendDB->be_search( op, rs );
+ if ( rs->sr_err == SLAPD_ASYNCOP ) {
+ /* skip cleanup */
+ return rs->sr_err;
+ }
+
+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;
+}
+