1 /* referral.c - BDB backend referral handler */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2012 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
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>.
19 #include <ac/string.h>
24 bdb_referrals( Operation *op, SlapReply *rs )
26 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
29 int rc = LDAP_SUCCESS;
34 if( op->o_tag == LDAP_REQ_SEARCH ) {
35 /* let search take care of itself */
39 if( get_manageDSAit( op ) ) {
40 /* let op take care of DSA management */
44 rc = bdb_reader_get(op, bdb->bi_dbenv, &rtxn);
54 rc = bdb_dn2entry( op, rtxn, &op->o_req_ndn, &ei, 1, &lock );
56 /* bdb_dn2entry() may legally leave ei == NULL
57 * if rc != 0 and rc != DB_NOTFOUND
68 rs->sr_text = "ldap server busy";
70 case DB_LOCK_DEADLOCK:
71 case DB_LOCK_NOTGRANTED:
74 Debug( LDAP_DEBUG_TRACE,
75 LDAP_XSTRING(bdb_referrals)
76 ": dn2entry failed: %s (%d)\n",
77 db_strerror(rc), rc, 0 );
78 rs->sr_text = "internal error";
82 if ( rc == DB_NOTFOUND ) {
84 rs->sr_matched = NULL;
86 Debug( LDAP_DEBUG_TRACE,
87 LDAP_XSTRING(bdb_referrals)
88 ": tag=%lu target=\"%s\" matched=\"%s\"\n",
89 (unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
91 if( is_entry_referral( e ) ) {
92 BerVarray ref = get_entry_referrals( op, e );
94 rs->sr_ref = referral_rewrite( ref, &e->e_name,
95 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
96 ber_bvarray_free( ref );
98 rs->sr_matched = ber_strdup_x(
99 e->e_name.bv_val, op->o_tmpmemctx );
103 bdb_cache_return_entry_r (bdb, e, &lock);
107 if( rs->sr_ref != NULL ) {
109 rc = rs->sr_err = LDAP_REFERRAL;
110 send_ldap_result( op, rs );
111 ber_bvarray_free( rs->sr_ref );
113 } else if ( rc != LDAP_SUCCESS ) {
114 rs->sr_text = rs->sr_matched ? "bad referral object" : NULL;
117 if (rs->sr_matched) {
118 op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
119 rs->sr_matched = NULL;
124 if ( is_entry_referral( e ) ) {
125 /* entry is a referral */
126 BerVarray refs = get_entry_referrals( op, e );
127 rs->sr_ref = referral_rewrite(
128 refs, &e->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
130 Debug( LDAP_DEBUG_TRACE,
131 LDAP_XSTRING(bdb_referrals)
132 ": tag=%lu target=\"%s\" matched=\"%s\"\n",
133 (unsigned long)op->o_tag, op->o_req_dn.bv_val, e->e_name.bv_val );
135 rs->sr_matched = e->e_name.bv_val;
136 if( rs->sr_ref != NULL ) {
137 rc = rs->sr_err = LDAP_REFERRAL;
138 send_ldap_result( op, rs );
139 ber_bvarray_free( rs->sr_ref );
143 rs->sr_text = "bad referral object";
146 rs->sr_matched = NULL;
147 ber_bvarray_free( refs );
150 bdb_cache_return_entry_r(bdb, e, &lock);