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617 lines
12 KiB
C
617 lines
12 KiB
C
/* rwm.c - rewrite/remap operations */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2003 The OpenLDAP Foundation.
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* Portions Copyright 2003 Pierangelo Masarati.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include "portable.h"
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#ifdef SLAPD_OVER_RWM
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#include <stdio.h>
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#include "slap.h"
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#include "rwm.h"
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static int
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rwm_op_dn_massage( Operation *op, SlapReply *rs, void *cookie )
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{
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slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
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struct ldaprwmap *rwmap =
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(struct ldaprwmap *)on->on_bi.bi_private;
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struct berval dn, ndn, mdn = { 0, NULL };
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int rc = 0;
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dncookie dc;
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/*
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* Rewrite the bind dn if needed
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*/
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dc.rwmap = rwmap;
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#ifdef ENABLE_REWRITE
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dc.conn = op->o_conn;
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dc.rs = rs;
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dc.ctx = (char *)cookie;
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#else
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dc.tofrom = ((int *)cookie)[0];
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dc.normalized = 0;
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#endif
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rc = rwm_dn_massage( &dc, &op->o_req_dn, &mdn );
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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if ( mdn.bv_val == op->o_req_dn.bv_val ) {
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return LDAP_SUCCESS;
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}
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rc = dnPrettyNormal( NULL, &mdn, &dn, &ndn, op->o_tmpmemctx );
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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if ( mdn.bv_val != dn.bv_val ) {
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ch_free( mdn.bv_val );
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}
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op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
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op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
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op->o_req_dn = dn;
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op->o_req_ndn = ndn;
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return LDAP_SUCCESS;
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}
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static int
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rwm_bind( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "bindDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_add( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "addDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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/* TODO: rewrite attribute types, values of DN-valued attributes ... */
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_delete( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "deleteDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_modrdn( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "renameDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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/* TODO: rewrite attribute types, values of DN-valued attributes ... */
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_modify( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "modifyDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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/* TODO: rewrite attribute types, values of DN-valued attributes ... */
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_compare( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "compareDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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/* TODO: rewrite attribute types, values of DN-valued attributes ... */
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_search( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "searchDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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/* TODO: rewrite/map filter & attrs */
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_extended( Operation *op, SlapReply *rs )
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{
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int rc;
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#ifdef ENABLE_REWRITE
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rc = rwm_op_dn_massage( op, rs, "extendedDn" );
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#else
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rc = 1;
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rc = rwm_op_dn_massage( op, rs, &rc );
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#endif
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if ( rc != LDAP_SUCCESS ) {
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return rc;
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}
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/* TODO: rewrite/map extended data ? ... */
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return 0;
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}
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static int
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rwm_matched( Operation *op, SlapReply *rs )
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{
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slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
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struct ldaprwmap *rwmap =
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(struct ldaprwmap *)on->on_bi.bi_private;
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struct berval dn, mdn;
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dncookie dc;
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if ( rs->sr_matched == NULL ) {
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return SLAP_CB_CONTINUE;
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}
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dc.rwmap = rwmap;
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#ifdef ENABLE_REWRITE
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dc.conn = op->o_conn;
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dc.rs = rs;
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dc.ctx = "matchedDn";
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#else
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dc.tofrom = 0;
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dc.normalized = 0;
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#endif
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ber_str2bv( rs->sr_matched, 0, 0, &dn );
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rwm_dn_massage( &dc, &dn, &mdn );
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if ( mdn.bv_val != dn.bv_val ) {
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if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
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ch_free( (void *)rs->sr_matched );
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} else {
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rs->sr_flags |= REP_MATCHED_MUSTBEFREED;
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}
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rs->sr_matched = mdn.bv_val;
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}
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return SLAP_CB_CONTINUE;
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}
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static int
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rwm_send_entry( Operation *op, SlapReply *rs )
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{
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slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
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struct ldaprwmap *rwmap =
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(struct ldaprwmap *)on->on_bi.bi_private;
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Entry *e = NULL;
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struct berval dn = { 0, NULL }, ndn = { 0, NULL };
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dncookie dc;
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int rc = SLAP_CB_CONTINUE;
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assert( rs->sr_entry );
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e = rs->sr_entry;
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/*
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* Rewrite the dn of the result, if needed
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*/
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dc.rwmap = rwmap;
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#ifdef ENABLE_REWRITE
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dc.conn = op->o_conn;
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dc.rs = NULL;
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dc.ctx = "searchResultDN";
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#else
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dc.tofrom = 0;
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dc.normalized = 0;
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#endif
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if ( rwm_dn_massage( &dc, &e->e_name, &dn ) ) {
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return LDAP_OTHER;
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}
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if ( e->e_name.bv_val == dn.bv_val ) {
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return SLAP_CB_CONTINUE;
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}
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/*
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* Note: this may fail if the target host(s) schema differs
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* from the one known to the meta, and a DN with unknown
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* attributes is returned.
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*/
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if ( dnNormalize( 0, NULL, NULL, &dn, &ndn, NULL ) != LDAP_SUCCESS ) {
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if ( dn.bv_val != e->e_name.bv_val ) {
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ch_free( dn.bv_val );
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}
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rc = LDAP_INVALID_DN_SYNTAX;
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goto fail;
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}
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if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
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e = entry_dup( e );
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if ( e == NULL ) {
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goto fail;
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}
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rs->sr_flags |= ( REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED );
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}
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free( e->e_name.bv_val );
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free( e->e_nname.bv_val );
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e->e_name = dn;
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e->e_nname = ndn;
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rs->sr_entry = e;
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/* TODO: map entry attribute types, objectclasses
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* and dn-valued attribute values */
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return SLAP_CB_CONTINUE;
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fail:;
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if ( dn.bv_val && ( dn.bv_val != e->e_name.bv_val ) ) {
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ch_free( dn.bv_val );
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}
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if ( ndn.bv_val ) {
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ch_free( ndn.bv_val );
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}
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return rc;
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}
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static int
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rwm_rw_config(
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BackendDB *be,
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const char *fname,
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int lineno,
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int argc,
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char **argv
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)
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{
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#ifdef ENABLE_REWRITE
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slap_overinst *on = (slap_overinst *) be->bd_info;
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struct ldaprwmap *rwmap =
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(struct ldaprwmap *)on->on_bi.bi_private;
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return rewrite_parse( rwmap->rwm_rw,
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fname, lineno, argc, argv );
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#else /* !ENABLE_REWRITE */
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fprintf( stderr, "%s: line %d: rewrite capabilities "
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"are not enabled\n", fname, lineno );
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#endif /* !ENABLE_REWRITE */
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return 0;
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}
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static int
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rwm_suffixmassage_config(
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BackendDB *be,
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const char *fname,
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int lineno,
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int argc,
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char **argv
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)
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{
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slap_overinst *on = (slap_overinst *) be->bd_info;
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struct ldaprwmap *rwmap =
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(struct ldaprwmap *)on->on_bi.bi_private;
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struct berval bvnc, nvnc, pvnc, brnc, nrnc, prnc;
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#ifdef ENABLE_REWRITE
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int rc;
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#endif /* ENABLE_REWRITE */
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/*
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* syntax:
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*
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* suffixmassage <suffix> <massaged suffix>
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*
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* the <suffix> field must be defined as a valid suffix
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* (or suffixAlias?) for the current database;
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* the <massaged suffix> shouldn't have already been
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* defined as a valid suffix or suffixAlias for the
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* current server
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*/
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if ( argc != 3 ) {
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fprintf( stderr, "%s: line %d: syntax is"
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" \"suffixMassage <suffix>"
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" <massaged suffix>\"\n",
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fname, lineno );
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return 1;
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}
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ber_str2bv( argv[1], 0, 0, &bvnc );
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if ( dnPrettyNormal( NULL, &bvnc, &pvnc, &nvnc, NULL ) != LDAP_SUCCESS ) {
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fprintf( stderr, "%s: line %d: suffix DN %s is invalid\n",
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fname, lineno, bvnc.bv_val );
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return 1;
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}
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ber_str2bv( argv[2], 0, 0, &brnc );
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if ( dnPrettyNormal( NULL, &brnc, &prnc, &nrnc, NULL ) != LDAP_SUCCESS ) {
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fprintf( stderr, "%s: line %d: suffix DN %s is invalid\n",
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fname, lineno, brnc.bv_val );
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free( nvnc.bv_val );
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free( pvnc.bv_val );
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return 1;
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}
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#ifdef ENABLE_REWRITE
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/*
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* The suffix massaging is emulated
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* by means of the rewrite capabilities
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*/
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rc = rwm_suffix_massage_config( rwmap->rwm_rw,
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&pvnc, &nvnc, &prnc, &nrnc );
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free( nvnc.bv_val );
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free( pvnc.bv_val );
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free( nrnc.bv_val );
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free( prnc.bv_val );
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return( rc );
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#else /* !ENABLE_REWRITE */
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ber_bvarray_add( &rwmap->rwm_suffix_massage, &pvnc );
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ber_bvarray_add( &rwmap->rwm_suffix_massage, &nvnc );
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ber_bvarray_add( &rwmap->rwm_suffix_massage, &prnc );
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ber_bvarray_add( &rwmap->rwm_suffix_massage, &nrnc );
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#endif /* !ENABLE_REWRITE */
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return 0;
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}
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static int
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rwm_m_config(
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BackendDB *be,
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const char *fname,
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int lineno,
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int argc,
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char **argv
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)
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{
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slap_overinst *on = (slap_overinst *) be->bd_info;
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struct ldaprwmap *rwmap =
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(struct ldaprwmap *)on->on_bi.bi_private;
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/* objectclass/attribute mapping */
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return rwm_map_config( &rwmap->rwm_oc,
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&rwmap->rwm_at,
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fname, lineno, argc, argv );
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}
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static int
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rwm_response( Operation *op, SlapReply *rs )
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{
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int rc;
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if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
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return rwm_send_entry( op, rs );
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}
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switch( op->o_tag ) {
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case LDAP_REQ_BIND:
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case LDAP_REQ_ADD:
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case LDAP_REQ_DELETE:
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case LDAP_REQ_MODRDN:
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case LDAP_REQ_MODIFY:
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case LDAP_REQ_COMPARE:
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case LDAP_REQ_SEARCH:
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case LDAP_REQ_EXTENDED:
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rc = rwm_matched( op, rs );
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break;
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default:
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rc = SLAP_CB_CONTINUE;
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break;
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}
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return rc;
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}
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static int
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rwm_config(
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BackendDB *be,
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const char *fname,
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int lineno,
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int argc,
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char **argv
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)
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{
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int rc = 0;
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if ( strncasecmp( argv[0], "rewrite", sizeof("rewrite") - 1) == 0 ) {
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rc = rwm_rw_config( be, fname, lineno, argc, argv );
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} else if (strcasecmp( argv[0], "map" ) == 0 ) {
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rc = rwm_m_config( be, fname, lineno, argc, argv );
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} else if (strcasecmp( argv[0], "suffixmassage" ) == 0 ) {
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rc = rwm_suffixmassage_config( be, fname, lineno, argc, argv );
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} else {
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rc = SLAP_CONF_UNKNOWN;
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}
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return rc;
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}
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static int
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rwm_over_init(
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BackendDB *be
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)
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{
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slap_overinst *on = (slap_overinst *) be->bd_info;
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struct ldapmapping *mapping = NULL;
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struct ldaprwmap *rwmap;
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rwmap = (struct ldaprwmap *)ch_malloc(sizeof(struct ldaprwmap));
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memset(rwmap, 0, sizeof(struct ldaprwmap));
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#ifdef ENABLE_REWRITE
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rwmap->rwm_rw = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
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if ( rwmap->rwm_rw == NULL ) {
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ch_free( rwmap );
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return -1;
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}
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#endif /* ENABLE_REWRITE */
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rwm_map_init( &rwmap->rwm_oc, &mapping );
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rwm_map_init( &rwmap->rwm_at, &mapping );
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on->on_bi.bi_private = (void *)rwmap;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rwm_destroy(
|
|
BackendDB *be
|
|
)
|
|
{
|
|
slap_overinst *on = (slap_overinst *) be->bd_info;
|
|
int rc = 0;
|
|
|
|
if ( on->on_bi.bi_private ) {
|
|
struct ldaprwmap *rwmap =
|
|
(struct ldaprwmap *)on->on_bi.bi_private;
|
|
|
|
#ifdef ENABLE_REWRITE
|
|
if (rwmap->rwm_rw) {
|
|
rewrite_info_delete( &rwmap->rwm_rw );
|
|
}
|
|
#else /* !ENABLE_REWRITE */
|
|
if ( rwmap->lrwm_suffix_massage ) {
|
|
ber_bvarray_free( rwmap->rwm_suffix_massage );
|
|
}
|
|
#endif /* !ENABLE_REWRITE */
|
|
|
|
avl_free( rwmap->rwm_oc.remap, NULL );
|
|
avl_free( rwmap->rwm_oc.map, mapping_free );
|
|
avl_free( rwmap->rwm_at.remap, NULL );
|
|
avl_free( rwmap->rwm_at.map, mapping_free );
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static slap_overinst rwm = { { NULL } };
|
|
|
|
int
|
|
rwm_init(void)
|
|
{
|
|
memset( &rwm, 0, sizeof(slap_overinst) );
|
|
|
|
rwm.on_bi.bi_type = "rewrite-remap";
|
|
rwm.on_bi.bi_db_init = rwm_over_init;
|
|
rwm.on_bi.bi_db_config = rwm_config;
|
|
rwm.on_bi.bi_db_destroy = rwm_destroy;
|
|
|
|
rwm.on_bi.bi_op_bind = rwm_bind;
|
|
rwm.on_bi.bi_op_search = rwm_search;
|
|
rwm.on_bi.bi_op_compare = rwm_compare;
|
|
rwm.on_bi.bi_op_modify = rwm_modify;
|
|
rwm.on_bi.bi_op_modrdn = rwm_modrdn;
|
|
rwm.on_bi.bi_op_add = rwm_add;
|
|
rwm.on_bi.bi_op_delete = rwm_delete;
|
|
rwm.on_bi.bi_extended = rwm_extended;
|
|
|
|
rwm.on_response = rwm_response;
|
|
|
|
return overlay_register( &rwm );
|
|
}
|
|
|
|
#if SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC
|
|
int init_module(int argc, char *argv[]) {
|
|
return rwm_init();
|
|
}
|
|
#endif
|
|
|
|
#endif /* SLAPD_OVER_RWM */
|