summaryrefslogtreecommitdiffstats
path: root/servers/slapd/back-bdb/referral.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:11:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 11:11:40 +0000
commit7731832751ab9f3c6ddeb66f186d3d7fa1934a6d (patch)
treee91015872543a59be2aad26c2fea02e41b57005d /servers/slapd/back-bdb/referral.c
parentInitial commit. (diff)
downloadopenldap-7731832751ab9f3c6ddeb66f186d3d7fa1934a6d.tar.xz
openldap-7731832751ab9f3c6ddeb66f186d3d7fa1934a6d.zip
Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servers/slapd/back-bdb/referral.c')
-rw-r--r--servers/slapd/back-bdb/referral.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/servers/slapd/back-bdb/referral.c b/servers/slapd/back-bdb/referral.c
new file mode 100644
index 0000000..ad51b2d
--- /dev/null
+++ b/servers/slapd/back-bdb/referral.c
@@ -0,0 +1,152 @@
+/* referral.c - BDB backend referral handler */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2021 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>.
+ */
+
+#include "portable.h"
+#include <stdio.h>
+#include <ac/string.h>
+
+#include "back-bdb.h"
+
+int
+bdb_referrals( Operation *op, SlapReply *rs )
+{
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ Entry *e = NULL;
+ EntryInfo *ei;
+ int rc = LDAP_SUCCESS;
+
+ DB_TXN *rtxn;
+ DB_LOCK lock;
+
+ if( op->o_tag == LDAP_REQ_SEARCH ) {
+ /* let search take care of itself */
+ return rc;
+ }
+
+ if( get_manageDSAit( op ) ) {
+ /* let op take care of DSA management */
+ return rc;
+ }
+
+ rc = bdb_reader_get(op, bdb->bi_dbenv, &rtxn);
+ switch(rc) {
+ case 0:
+ break;
+ default:
+ return LDAP_OTHER;
+ }
+
+dn2entry_retry:
+ /* get entry */
+ rc = bdb_dn2entry( op, rtxn, &op->o_req_ndn, &ei, 1, &lock );
+
+ /* bdb_dn2entry() may legally leave ei == NULL
+ * if rc != 0 and rc != DB_NOTFOUND
+ */
+ if ( ei ) {
+ e = ei->bei_e;
+ }
+
+ switch(rc) {
+ case DB_NOTFOUND:
+ case 0:
+ break;
+ case LDAP_BUSY:
+ rs->sr_text = "ldap server busy";
+ return LDAP_BUSY;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto dn2entry_retry;
+ default:
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_referrals)
+ ": dn2entry failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ rs->sr_text = "internal error";
+ return LDAP_OTHER;
+ }
+
+ if ( rc == DB_NOTFOUND ) {
+ rc = LDAP_SUCCESS;
+ rs->sr_matched = NULL;
+ if ( e != NULL ) {
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_referrals)
+ ": tag=%lu target=\"%s\" matched=\"%s\"\n",
+ (unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
+
+ if( is_entry_referral( e ) ) {
+ BerVarray ref = get_entry_referrals( op, e );
+ rc = LDAP_OTHER;
+ rs->sr_ref = referral_rewrite( ref, &e->e_name,
+ &op->o_req_dn, LDAP_SCOPE_DEFAULT );
+ ber_bvarray_free( ref );
+ if ( rs->sr_ref ) {
+ rs->sr_matched = ber_strdup_x(
+ e->e_name.bv_val, op->o_tmpmemctx );
+ }
+ }
+
+ bdb_cache_return_entry_r (bdb, e, &lock);
+ e = NULL;
+ }
+
+ if( rs->sr_ref != NULL ) {
+ /* send referrals */
+ rc = rs->sr_err = LDAP_REFERRAL;
+ send_ldap_result( op, rs );
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ } else if ( rc != LDAP_SUCCESS ) {
+ rs->sr_text = rs->sr_matched ? "bad referral object" : NULL;
+ }
+
+ if (rs->sr_matched) {
+ op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
+ rs->sr_matched = NULL;
+ }
+ return rc;
+ }
+
+ if ( is_entry_referral( e ) ) {
+ /* entry is a referral */
+ BerVarray refs = get_entry_referrals( op, e );
+ rs->sr_ref = referral_rewrite(
+ refs, &e->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
+
+ Debug( LDAP_DEBUG_TRACE,
+ LDAP_XSTRING(bdb_referrals)
+ ": tag=%lu target=\"%s\" matched=\"%s\"\n",
+ (unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
+
+ rs->sr_matched = e->e_name.bv_val;
+ if( rs->sr_ref != NULL ) {
+ rc = rs->sr_err = LDAP_REFERRAL;
+ send_ldap_result( op, rs );
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ } else {
+ rc = LDAP_OTHER;
+ rs->sr_text = "bad referral object";
+ }
+
+ rs->sr_matched = NULL;
+ ber_bvarray_free( refs );
+ }
+
+ bdb_cache_return_entry_r(bdb, e, &lock);
+ return rc;
+}