+ goto error_return;
+ }
+
+ /* If we've got a glued backend, check the real backend */
+ op_be = op->o_bd;
+ if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
+ op->o_bd = select_backend( &op->o_req_ndn, 0, 0 );
+ }
+
+ if (backend_check_restrictions( op, rs,
+ (struct berval *)&slap_EXOP_MODIFY_PASSWD ) != LDAP_SUCCESS) {
+ rc = rs->sr_err;
+ goto error_return;
+ }
+
+ /* check for referrals */
+ if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
+ rc = rs->sr_err;
+ goto error_return;
+ }
+
+#ifndef SLAPD_MULTIMASTER
+ /* This does not apply to multi-master case */
+ if(!( !SLAP_SHADOW( op->o_bd ) || be_isupdate( op ))) {
+ /* we SHOULD return a referral in this case */
+ BerVarray defref = op->o_bd->be_update_refs
+ ? op->o_bd->be_update_refs : default_referral;
+
+ if( defref != NULL ) {
+ rs->sr_ref = referral_rewrite( op->o_bd->be_update_refs,
+ NULL, NULL, LDAP_SCOPE_DEFAULT );
+ if(rs->sr_ref) {
+ rs->sr_flags |= REP_REF_MUSTBEFREED;
+ } else {
+ rs->sr_ref = defref;
+ }
+ rc = LDAP_REFERRAL;
+ goto error_return;
+
+ }
+
+ rs->sr_text = "shadow context; no update referral";
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ goto error_return;
+ }
+#endif /* !SLAPD_MULTIMASTER */
+
+ /* generate a new password if none was provided */
+ if ( qpw->rs_new.bv_len == 0 ) {
+ slap_passwd_generate( &qpw->rs_new );
+ if ( qpw->rs_new.bv_len ) {
+ rsp = slap_passwd_return( &qpw->rs_new );
+ }
+ }
+ if ( qpw->rs_new.bv_len == 0 ) {
+ rs->sr_text = "password generation failed";
+ rc = LDAP_OTHER;
+ goto error_return;
+ }
+
+ op->o_bd = op_be;
+
+ /* Give the backend a chance to handle this itself */
+ if ( op->o_bd->be_extended ) {
+ rs->sr_err = op->o_bd->be_extended( op, rs );
+ if ( rs->sr_err != LDAP_UNWILLING_TO_PERFORM &&
+ rs->sr_err != SLAP_CB_CONTINUE ) {
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+
+ /* The backend didn't handle it, so try it here */
+ if( op->o_bd && !op->o_bd->be_modify ) {
+ rs->sr_text = "operation not supported for current user";
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ goto error_return;
+ }
+
+ ml = ch_malloc( sizeof(Modifications) );
+ if ( !qpw->rs_modtail ) qpw->rs_modtail = &ml->sml_next;
+
+ if ( default_passwd_hash ) {
+ for ( nhash = 0; default_passwd_hash[nhash]; nhash++ );
+ hashes = default_passwd_hash;
+ } else {
+ nhash = 1;
+ hashes = (char **)defhash;
+ }
+ ml->sml_values = ch_malloc( (nhash+1)*sizeof(struct berval) );
+ for ( i=0; hashes[i]; i++ ) {
+ slap_passwd_hash_type( &qpw->rs_new, &hash, hashes[i], &rs->sr_text );
+ if ( hash.bv_len == 0 ) {
+ if ( !rs->sr_text ) {
+ rs->sr_text = "password hash failed";
+ }
+ break;
+ }
+ ml->sml_values[i] = hash;
+ }
+ ml->sml_values[i].bv_val = NULL;
+ ml->sml_nvalues = NULL;
+ ml->sml_desc = slap_schema.si_ad_userPassword;
+ ml->sml_op = LDAP_MOD_REPLACE;
+ ml->sml_next = qpw->rs_mods;
+ qpw->rs_mods = ml;
+
+ if ( hashes[i] ) {
+ rs->sr_err = LDAP_OTHER;
+
+ } else {
+ slap_callback *sc = op->o_callback;
+
+ op->o_tag = LDAP_REQ_MODIFY;
+ op->o_callback = &cb2;
+ op->orm_modlist = qpw->rs_mods;
+ cb2.sc_private = qpw; /* let Modify know this was pwdMod,
+ * if it cares... */
+
+ rs->sr_err = slap_mods_opattrs( op, ml, qpw->rs_modtail, &rs->sr_text,
+ NULL, 0, 1 );
+
+ if ( rs->sr_err == LDAP_SUCCESS ) {
+ rs->sr_err = op->o_bd->be_modify( op, rs );
+ }
+ if ( rs->sr_err == LDAP_SUCCESS ) {
+ rs->sr_rspdata = rsp;
+ } else if ( rsp ) {
+ ber_bvfree( rsp );
+ }
+ op->o_tag = LDAP_REQ_EXTENDED;
+ op->o_callback = sc;
+ }
+ slap_mods_free( qpw->rs_mods );
+ if ( rsp ) {
+ free( qpw->rs_new.bv_val );
+ }
+
+ rc = rs->sr_err;
+ op->oq_extended = qext;
+
+error_return:;
+ if ( !BER_BVISNULL( &op->o_req_dn ) ) {
+ op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
+ }
+ if ( !BER_BVISNULL( &op->o_req_ndn ) ) {
+ op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );