1 /* bind.c - bdb backend bind routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2006 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>.
21 #include <ac/string.h>
22 #include <ac/unistd.h>
27 bdb_bind( Operation *op, SlapReply *rs )
29 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
33 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
34 char krbname[MAX_K_NAME_SZ + 1];
35 AttributeDescription *krbattr = slap_schema.si_ad_krbName;
40 AttributeDescription *password = slap_schema.si_ad_userPassword;
45 Debug( LDAP_DEBUG_ARGS,
46 "==> " LDAP_XSTRING(bdb_bind) ": dn: %s\n",
47 op->o_req_dn.bv_val, 0, 0);
49 /* allow noauth binds */
50 if ( op->oq_bind.rb_method == LDAP_AUTH_SIMPLE && be_isroot_pw( op )) {
51 ber_dupbv( &op->oq_bind.rb_edn, be_root_dn( op->o_bd ) );
52 /* front end will send result */
56 rs->sr_err = LOCK_ID(bdb->bi_dbenv, &locker);
61 rs->sr_text = "internal error";
62 send_ldap_result( op, rs );
67 /* get entry with reader lock */
68 rs->sr_err = bdb_dn2entry( op, NULL, &op->o_req_ndn, &ei, 1,
76 send_ldap_error( op, rs, LDAP_BUSY, "ldap_server_busy" );
77 LOCK_ID_FREE(bdb->bi_dbenv, locker);
79 case DB_LOCK_DEADLOCK:
80 case DB_LOCK_NOTGRANTED:
83 send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
84 LOCK_ID_FREE(bdb->bi_dbenv, locker);
89 if ( rs->sr_err == DB_NOTFOUND ) {
91 bdb_cache_return_entry_r( bdb->bi_dbenv,
92 &bdb->bi_cache, e, &lock );
96 rs->sr_err = LDAP_INVALID_CREDENTIALS;
97 send_ldap_result( op, rs );
99 LOCK_ID_FREE(bdb->bi_dbenv, locker);
104 ber_dupbv( &op->oq_bind.rb_edn, &e->e_name );
106 /* check for deleted */
107 if ( is_entry_subentry( e ) ) {
108 /* entry is an subentry, don't allow bind */
109 Debug( LDAP_DEBUG_TRACE, "entry is subentry\n", 0,
111 rs->sr_err = LDAP_INVALID_CREDENTIALS;
115 if ( is_entry_alias( e ) ) {
116 /* entry is an alias, don't allow bind */
117 Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0, 0, 0 );
118 rs->sr_err = LDAP_INVALID_CREDENTIALS;
122 if ( is_entry_referral( e ) ) {
123 Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
125 rs->sr_err = LDAP_INVALID_CREDENTIALS;
129 switch ( op->oq_bind.rb_method ) {
130 case LDAP_AUTH_SIMPLE:
131 a = attr_find( e->e_attrs, password );
133 rs->sr_err = LDAP_INVALID_CREDENTIALS;
137 if ( slap_passwd_check( op, e, a, &op->oq_bind.rb_cred,
138 &rs->sr_text ) != 0 )
140 /* failure; stop front end from sending result */
141 rs->sr_err = LDAP_INVALID_CREDENTIALS;
148 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
149 case LDAP_AUTH_KRBV41:
150 if ( krbv4_ldap_auth( op->o_bd, &op->oq_bind.rb_cred, &ad )
153 rs->sr_err = LDAP_INVALID_CREDENTIALS,
157 rs->sr_err = access_allowed( op, e,
158 krbattr, NULL, ACL_AUTH, NULL );
159 if ( ! rs->sr_err ) {
160 rs->sr_err = LDAP_INSUFFICIENT_ACCESS,
164 krbval.bv_len = sprintf( krbname, "%s%s%s@%s", ad.pname,
165 *ad.pinst ? "." : "", ad.pinst, ad.prealm );
167 if ( (a = attr_find( e->e_attrs, krbattr )) == NULL ) {
169 * no krbname values present: check against DN
171 if ( strcasecmp( op->o_req_dn.bv_val, krbname ) == 0 ) {
175 rs->sr_err = LDAP_INAPPROPRIATE_AUTH,
178 } else { /* look for krbname match */
179 krbval.bv_val = krbname;
181 if ( value_find( a->a_desc, a->a_vals, &krbval ) != 0 ) {
182 rs->sr_err = LDAP_INVALID_CREDENTIALS;
191 assert( 0 ); /* should not be unreachable */
192 rs->sr_err = LDAP_STRONG_AUTH_NOT_SUPPORTED;
193 rs->sr_text = "authentication method not supported";
197 /* free entry and reader lock */
199 bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache, e, &lock );
202 LOCK_ID_FREE(bdb->bi_dbenv, locker);
205 send_ldap_result( op, rs );
207 ber_bvarray_free( rs->sr_ref );
211 /* front end will send result on success (rs->sr_err==0) */