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-rw-r--r--servers/slapd/overlays/rwm.c2763
1 files changed, 2763 insertions, 0 deletions
diff --git a/servers/slapd/overlays/rwm.c b/servers/slapd/overlays/rwm.c
new file mode 100644
index 0000000..4bedbf6
--- /dev/null
+++ b/servers/slapd/overlays/rwm.c
@@ -0,0 +1,2763 @@
+/* rwm.c - rewrite/remap operations */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2003-2021 The OpenLDAP Foundation.
+ * Portions Copyright 2003 Pierangelo Masarati.
+ * 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"
+
+#ifdef SLAPD_OVER_RWM
+
+#include <stdio.h>
+
+#include <ac/string.h>
+
+#include "slap.h"
+#include "config.h"
+#include "lutil.h"
+#include "rwm.h"
+
+typedef struct rwm_op_state {
+ ber_tag_t r_tag;
+ struct berval ro_dn;
+ struct berval ro_ndn;
+ struct berval r_dn;
+ struct berval r_ndn;
+ struct berval rx_dn;
+ struct berval rx_ndn;
+ AttributeName *mapped_attrs;
+ OpRequest o_request;
+} rwm_op_state;
+
+typedef struct rwm_op_cb {
+ slap_callback cb;
+ rwm_op_state ros;
+} rwm_op_cb;
+
+static int
+rwm_db_destroy( BackendDB *be, ConfigReply *cr );
+
+static int
+rwm_send_entry( Operation *op, SlapReply *rs );
+
+static void
+rwm_op_rollback( Operation *op, SlapReply *rs, rwm_op_state *ros )
+{
+ /* in case of successful extended operation cleanup
+ * gets called *after* (ITS#6632); this hack counts
+ * on others to cleanup our o_req_dn/o_req_ndn,
+ * while we cleanup theirs. */
+ if ( ros->r_tag == LDAP_REQ_EXTENDED && rs->sr_err == LDAP_SUCCESS ) {
+ if ( !BER_BVISNULL( &ros->rx_dn ) ) {
+ ch_free( ros->rx_dn.bv_val );
+ }
+ if ( !BER_BVISNULL( &ros->rx_ndn ) ) {
+ ch_free( ros->rx_ndn.bv_val );
+ }
+
+ } else {
+ if ( !BER_BVISNULL( &ros->ro_dn ) ) {
+ op->o_req_dn = ros->ro_dn;
+ }
+ if ( !BER_BVISNULL( &ros->ro_ndn ) ) {
+ op->o_req_ndn = ros->ro_ndn;
+ }
+
+ if ( !BER_BVISNULL( &ros->r_dn )
+ && ros->r_dn.bv_val != ros->ro_dn.bv_val )
+ {
+ assert( ros->r_dn.bv_val != ros->r_ndn.bv_val );
+ ch_free( ros->r_dn.bv_val );
+ }
+
+ if ( !BER_BVISNULL( &ros->r_ndn )
+ && ros->r_ndn.bv_val != ros->ro_ndn.bv_val )
+ {
+ ch_free( ros->r_ndn.bv_val );
+ }
+ }
+
+ BER_BVZERO( &ros->r_dn );
+ BER_BVZERO( &ros->r_ndn );
+ BER_BVZERO( &ros->ro_dn );
+ BER_BVZERO( &ros->ro_ndn );
+ BER_BVZERO( &ros->rx_dn );
+ BER_BVZERO( &ros->rx_ndn );
+
+ switch( ros->r_tag ) {
+ case LDAP_REQ_COMPARE:
+ if ( op->orc_ava->aa_value.bv_val != ros->orc_ava->aa_value.bv_val )
+ op->o_tmpfree( op->orc_ava->aa_value.bv_val, op->o_tmpmemctx );
+ op->orc_ava = ros->orc_ava;
+ break;
+ case LDAP_REQ_MODIFY:
+ slap_mods_free( op->orm_modlist, 1 );
+ op->orm_modlist = ros->orm_modlist;
+ break;
+ case LDAP_REQ_MODRDN:
+ if ( op->orr_newSup != ros->orr_newSup ) {
+ if ( op->orr_newSup ) {
+ ch_free( op->orr_newSup->bv_val );
+ ch_free( op->orr_nnewSup->bv_val );
+ op->o_tmpfree( op->orr_newSup, op->o_tmpmemctx );
+ op->o_tmpfree( op->orr_nnewSup, op->o_tmpmemctx );
+ }
+ op->orr_newSup = ros->orr_newSup;
+ op->orr_nnewSup = ros->orr_nnewSup;
+ }
+ if ( op->orr_newrdn.bv_val != ros->orr_newrdn.bv_val ) {
+ ch_free( op->orr_newrdn.bv_val );
+ ch_free( op->orr_nnewrdn.bv_val );
+ op->orr_newrdn = ros->orr_newrdn;
+ op->orr_nnewrdn = ros->orr_nnewrdn;
+ }
+ break;
+ case LDAP_REQ_SEARCH:
+ op->o_tmpfree( ros->mapped_attrs, op->o_tmpmemctx );
+ op->ors_attrs = ros->ors_attrs;
+ if ( op->ors_filter != ros->ors_filter ) {
+ filter_free_x( op, op->ors_filter, 1 );
+ op->ors_filter = ros->ors_filter;
+ }
+ if ( op->ors_filterstr.bv_val != ros->ors_filterstr.bv_val ) {
+ op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
+ op->ors_filterstr = ros->ors_filterstr;
+ }
+ break;
+ case LDAP_REQ_EXTENDED:
+ if ( op->ore_reqdata != ros->ore_reqdata ) {
+ ber_bvfree( op->ore_reqdata );
+ op->ore_reqdata = ros->ore_reqdata;
+ }
+ break;
+ case LDAP_REQ_BIND:
+ if ( rs->sr_err == LDAP_SUCCESS ) {
+#if 0
+ ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
+ /* too late, c_mutex released */
+ Debug( LDAP_DEBUG_ANY, "*** DN: \"%s\" => \"%s\"\n",
+ op->o_conn->c_ndn.bv_val,
+ op->o_req_ndn.bv_val );
+ ber_bvreplace( &op->o_conn->c_ndn,
+ &op->o_req_ndn );
+ ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
+#endif
+ }
+ break;
+ default: break;
+ }
+}
+
+static int
+rwm_op_cleanup( Operation *op, SlapReply *rs )
+{
+ slap_callback *cb = op->o_callback;
+ rwm_op_state *ros = cb->sc_private;
+
+ if ( rs->sr_type == REP_RESULT || rs->sr_type == REP_EXTENDED ||
+ op->o_abandon || rs->sr_err == SLAPD_ABANDON )
+ {
+ rwm_op_rollback( op, rs, ros );
+
+ op->o_callback = op->o_callback->sc_next;
+ op->o_tmpfree( cb, op->o_tmpmemctx );
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+
+static rwm_op_cb *
+rwm_callback_get( Operation *op )
+{
+ rwm_op_cb *roc;
+
+ roc = op->o_tmpcalloc( 1, sizeof( struct rwm_op_cb ), op->o_tmpmemctx );
+ roc->cb.sc_cleanup = rwm_op_cleanup;
+ roc->cb.sc_response = NULL;
+ roc->cb.sc_next = op->o_callback;
+ roc->cb.sc_private = &roc->ros;
+ roc->ros.r_tag = op->o_tag;
+ roc->ros.ro_dn = op->o_req_dn;
+ roc->ros.ro_ndn = op->o_req_ndn;
+ BER_BVZERO( &roc->ros.r_dn );
+ BER_BVZERO( &roc->ros.r_ndn );
+ BER_BVZERO( &roc->ros.rx_dn );
+ BER_BVZERO( &roc->ros.rx_ndn );
+ roc->ros.mapped_attrs = NULL;
+ roc->ros.o_request = op->o_request;
+
+ return roc;
+}
+
+
+static int
+rwm_op_dn_massage( Operation *op, SlapReply *rs, void *cookie,
+ rwm_op_state *ros )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ struct berval dn = BER_BVNULL,
+ ndn = BER_BVNULL;
+ int rc = 0;
+ dncookie dc;
+
+ /*
+ * Rewrite the dn if needed
+ */
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = rs;
+ dc.ctx = (char *)cookie;
+
+ /* NOTE: in those cases where only the ndn is available,
+ * and the caller sets op->o_req_dn = op->o_req_ndn,
+ * only rewrite the op->o_req_ndn and use it as
+ * op->o_req_dn as well */
+ ndn = op->o_req_ndn;
+ if ( op->o_req_dn.bv_val != op->o_req_ndn.bv_val ) {
+ dn = op->o_req_dn;
+ rc = rwm_dn_massage_pretty_normalize( &dc, &op->o_req_dn, &dn, &ndn );
+ } else {
+ rc = rwm_dn_massage_normalize( &dc, &op->o_req_ndn, &ndn );
+ }
+
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ if ( ( op->o_req_dn.bv_val != op->o_req_ndn.bv_val && dn.bv_val == op->o_req_dn.bv_val )
+ || ndn.bv_val == op->o_req_ndn.bv_val )
+ {
+ return LDAP_SUCCESS;
+ }
+
+ if ( op->o_req_dn.bv_val != op->o_req_ndn.bv_val ) {
+ op->o_req_dn = dn;
+ assert( BER_BVISNULL( &ros->r_dn ) );
+ ros->r_dn = dn;
+ } else {
+ op->o_req_dn = ndn;
+ }
+ op->o_req_ndn = ndn;
+ assert( BER_BVISNULL( &ros->r_ndn ) );
+ ros->r_ndn = ndn;
+
+ if ( ros->r_tag == LDAP_REQ_EXTENDED ) {
+ ros->rx_dn = ros->r_dn;
+ ros->rx_ndn = ros->r_ndn;
+ }
+
+ return LDAP_SUCCESS;
+}
+
+static int
+rwm_op_add( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ int rc,
+ i;
+ Attribute **ap = NULL;
+ char *olddn = op->o_req_dn.bv_val;
+ int isupdate;
+
+ rwm_op_cb *roc = rwm_callback_get( op );
+
+ rc = rwm_op_dn_massage( op, rs, "addDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "addDN massage error" );
+ return -1;
+ }
+
+ if ( olddn != op->o_req_dn.bv_val ) {
+ ber_bvreplace( &op->ora_e->e_name, &op->o_req_dn );
+ ber_bvreplace( &op->ora_e->e_nname, &op->o_req_ndn );
+ }
+
+ /* Count number of attributes in entry */
+ isupdate = be_shadow_update( op );
+ for ( i = 0, ap = &op->oq_add.rs_e->e_attrs; *ap; ) {
+ Attribute *a;
+
+ if ( (*ap)->a_desc == slap_schema.si_ad_objectClass ||
+ (*ap)->a_desc == slap_schema.si_ad_structuralObjectClass )
+ {
+ int j, last;
+
+ last = (*ap)->a_numvals - 1;
+ for ( j = 0; !BER_BVISNULL( &(*ap)->a_vals[ j ] ); j++ ) {
+ struct ldapmapping *mapping = NULL;
+
+ ( void )rwm_mapping( &rwmap->rwm_oc, &(*ap)->a_vals[ j ],
+ &mapping, RWM_MAP );
+ if ( mapping == NULL ) {
+ if ( rwmap->rwm_at.drop_missing ) {
+ /* FIXME: we allow to remove objectClasses as well;
+ * if the resulting entry is inconsistent, that's
+ * the relayed database's business...
+ */
+ ch_free( (*ap)->a_vals[ j ].bv_val );
+ if ( last > j ) {
+ (*ap)->a_vals[ j ] = (*ap)->a_vals[ last ];
+ }
+ BER_BVZERO( &(*ap)->a_vals[ last ] );
+ (*ap)->a_numvals--;
+ last--;
+ j--;
+ }
+
+ } else {
+ ch_free( (*ap)->a_vals[ j ].bv_val );
+ ber_dupbv( &(*ap)->a_vals[ j ], &mapping->m_dst );
+ }
+ }
+
+ } else if ( !isupdate && !get_relax( op ) && (*ap)->a_desc->ad_type->sat_no_user_mod )
+ {
+ goto next_attr;
+
+ } else {
+ struct ldapmapping *mapping = NULL;
+
+ ( void )rwm_mapping( &rwmap->rwm_at, &(*ap)->a_desc->ad_cname,
+ &mapping, RWM_MAP );
+ if ( mapping == NULL ) {
+ if ( rwmap->rwm_at.drop_missing ) {
+ goto cleanup_attr;
+ }
+ }
+
+ if ( (*ap)->a_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName
+ || ( mapping != NULL && mapping->m_dst_ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) )
+ {
+ /*
+ * FIXME: rewrite could fail; in this case
+ * the operation should give up, right?
+ */
+ rc = rwm_dnattr_rewrite( op, rs, "addAttrDN",
+ (*ap)->a_vals,
+ (*ap)->a_nvals ? &(*ap)->a_nvals : NULL );
+ if ( rc ) {
+ goto cleanup_attr;
+ }
+
+ } else if ( (*ap)->a_desc == slap_schema.si_ad_ref ) {
+ rc = rwm_referral_rewrite( op, rs, "referralAttrDN",
+ (*ap)->a_vals,
+ (*ap)->a_nvals ? &(*ap)->a_nvals : NULL );
+ if ( rc != LDAP_SUCCESS ) {
+ goto cleanup_attr;
+ }
+ }
+
+ if ( mapping != NULL ) {
+ assert( mapping->m_dst_ad != NULL );
+ (*ap)->a_desc = mapping->m_dst_ad;
+ }
+ }
+
+next_attr:;
+ ap = &(*ap)->a_next;
+ continue;
+
+cleanup_attr:;
+ /* FIXME: leaking attribute/values? */
+ a = *ap;
+
+ *ap = (*ap)->a_next;
+ attr_free( a );
+ }
+
+ op->o_callback = &roc->cb;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_conn_init( BackendDB *be, Connection *conn )
+{
+ slap_overinst *on = (slap_overinst *) be->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ ( void )rewrite_session_init( rwmap->rwm_rw, conn );
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_conn_destroy( BackendDB *be, Connection *conn )
+{
+ slap_overinst *on = (slap_overinst *) be->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ ( void )rewrite_session_delete( rwmap->rwm_rw, conn );
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_op_bind( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ int rc;
+
+ rwm_op_cb *roc = rwm_callback_get( op );
+
+ rc = rwm_op_dn_massage( op, rs, "bindDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "bindDN massage error" );
+ return -1;
+ }
+
+ overlay_callback_after_backover( op, &roc->cb, 1 );
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_op_unbind( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ rewrite_session_delete( rwmap->rwm_rw, op->o_conn );
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_op_compare( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ int rc;
+ struct berval mapped_vals[2] = { BER_BVNULL, BER_BVNULL };
+
+ rwm_op_cb *roc = rwm_callback_get( op );
+
+ rc = rwm_op_dn_massage( op, rs, "compareDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "compareDN massage error" );
+ return -1;
+ }
+
+ /* if the attribute is an objectClass, try to remap its value */
+ if ( op->orc_ava->aa_desc == slap_schema.si_ad_objectClass
+ || op->orc_ava->aa_desc == slap_schema.si_ad_structuralObjectClass )
+ {
+ rwm_map( &rwmap->rwm_oc, &op->orc_ava->aa_value,
+ &mapped_vals[0], RWM_MAP );
+ if ( BER_BVISNULL( &mapped_vals[0] ) || BER_BVISEMPTY( &mapped_vals[0] ) )
+ {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, LDAP_OTHER, "compare objectClass map error" );
+ return -1;
+
+ } else if ( mapped_vals[0].bv_val != op->orc_ava->aa_value.bv_val ) {
+ ber_dupbv_x( &op->orc_ava->aa_value, &mapped_vals[0],
+ op->o_tmpmemctx );
+ }
+
+ } else {
+ struct ldapmapping *mapping = NULL;
+ AttributeDescription *ad = op->orc_ava->aa_desc;
+
+ ( void )rwm_mapping( &rwmap->rwm_at, &op->orc_ava->aa_desc->ad_cname,
+ &mapping, RWM_MAP );
+ if ( mapping == NULL ) {
+ if ( rwmap->rwm_at.drop_missing ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, LDAP_OTHER, "compare attributeType map error" );
+ return -1;
+ }
+
+ } else {
+ assert( mapping->m_dst_ad != NULL );
+ ad = mapping->m_dst_ad;
+ }
+
+ if ( op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName
+ || ( mapping != NULL && mapping->m_dst_ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) )
+ {
+ struct berval *mapped_valsp[2];
+
+ mapped_valsp[0] = &mapped_vals[0];
+ mapped_valsp[1] = &mapped_vals[1];
+
+ mapped_vals[0] = op->orc_ava->aa_value;
+
+ rc = rwm_dnattr_rewrite( op, rs, "compareAttrDN", NULL, mapped_valsp );
+
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "compareAttrDN massage error" );
+ return -1;
+ }
+
+ if ( mapped_vals[ 0 ].bv_val != op->orc_ava->aa_value.bv_val ) {
+ /* NOTE: if we get here, rwm_dnattr_rewrite()
+ * already freed the old value, so now
+ * it's invalid */
+ ber_dupbv_x( &op->orc_ava->aa_value, &mapped_vals[0],
+ op->o_tmpmemctx );
+ ber_memfree_x( mapped_vals[ 0 ].bv_val, NULL );
+ }
+ }
+ op->orc_ava->aa_desc = ad;
+ }
+
+ op->o_callback = &roc->cb;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_op_delete( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ int rc;
+
+ rwm_op_cb *roc = rwm_callback_get( op );
+
+ rc = rwm_op_dn_massage( op, rs, "deleteDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "deleteDN massage error" );
+ return -1;
+ }
+
+ op->o_callback = &roc->cb;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_op_modify( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ int isupdate;
+ Modifications **mlp;
+ int rc;
+
+ rwm_op_cb *roc = rwm_callback_get( op );
+
+ rc = rwm_op_dn_massage( op, rs, "modifyDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "modifyDN massage error" );
+ return -1;
+ }
+
+ isupdate = be_shadow_update( op );
+ for ( mlp = &op->orm_modlist; *mlp; ) {
+ int is_oc = 0;
+ Modifications *ml = *mlp;
+ struct ldapmapping *mapping = NULL;
+
+ /* ml points to a temporary mod until needs duplication */
+ if ( ml->sml_desc == slap_schema.si_ad_objectClass
+ || ml->sml_desc == slap_schema.si_ad_structuralObjectClass )
+ {
+ is_oc = 1;
+
+ } else if ( !isupdate && !get_relax( op ) && ml->sml_desc->ad_type->sat_no_user_mod )
+ {
+ ml = ch_malloc( sizeof( Modifications ) );
+ *ml = **mlp;
+ if ( (*mlp)->sml_values ) {
+ ber_bvarray_dup_x( &ml->sml_values, (*mlp)->sml_values, NULL );
+ if ( (*mlp)->sml_nvalues ) {
+ ber_bvarray_dup_x( &ml->sml_nvalues, (*mlp)->sml_nvalues, NULL );
+ }
+ }
+ *mlp = ml;
+ goto next_mod;
+
+ } else {
+ int drop_missing;
+
+ drop_missing = rwm_mapping( &rwmap->rwm_at,
+ &ml->sml_desc->ad_cname,
+ &mapping, RWM_MAP );
+ if ( drop_missing || ( mapping != NULL && BER_BVISNULL( &mapping->m_dst ) ) )
+ {
+ goto skip_mod;
+ }
+ }
+
+ /* duplicate the modlist */
+ ml = ch_malloc( sizeof( Modifications ));
+ *ml = **mlp;
+ *mlp = ml;
+
+ if ( ml->sml_values != NULL ) {
+ int i, num;
+ struct berval *bva;
+
+ for ( num = 0; !BER_BVISNULL( &ml->sml_values[ num ] ); num++ )
+ /* count values */ ;
+
+ bva = ch_malloc( (num+1) * sizeof( struct berval ));
+ for (i=0; i<num; i++)
+ ber_dupbv( &bva[i], &ml->sml_values[i] );
+ BER_BVZERO( &bva[i] );
+ ml->sml_values = bva;
+
+ if ( ml->sml_nvalues ) {
+ bva = ch_malloc( (num+1) * sizeof( struct berval ));
+ for (i=0; i<num; i++)
+ ber_dupbv( &bva[i], &ml->sml_nvalues[i] );
+ BER_BVZERO( &bva[i] );
+ ml->sml_nvalues = bva;
+ }
+
+ if ( is_oc ) {
+ int last, j;
+
+ last = num-1;
+
+ for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) {
+ struct ldapmapping *oc_mapping = NULL;
+
+ ( void )rwm_mapping( &rwmap->rwm_oc, &ml->sml_values[ j ],
+ &oc_mapping, RWM_MAP );
+ if ( oc_mapping == NULL ) {
+ if ( rwmap->rwm_at.drop_missing ) {
+ /* FIXME: we allow to remove objectClasses as well;
+ * if the resulting entry is inconsistent, that's
+ * the relayed database's business...
+ */
+ if ( last > j ) {
+ ch_free( ml->sml_values[ j ].bv_val );
+ ml->sml_values[ j ] = ml->sml_values[ last ];
+ }
+ BER_BVZERO( &ml->sml_values[ last ] );
+ last--;
+ j--;
+ }
+
+ } else {
+ ch_free( ml->sml_values[ j ].bv_val );
+ ber_dupbv( &ml->sml_values[ j ], &oc_mapping->m_dst );
+ }
+ }
+
+ } else {
+ if ( ml->sml_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName
+ || ( mapping != NULL && mapping->m_dst_ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) )
+ {
+ rc = rwm_dnattr_rewrite( op, rs, "modifyAttrDN",
+ ml->sml_values,
+ ml->sml_nvalues ? &ml->sml_nvalues : NULL );
+
+ } else if ( ml->sml_desc == slap_schema.si_ad_ref ) {
+ rc = rwm_referral_rewrite( op, rs,
+ "referralAttrDN",
+ ml->sml_values,
+ ml->sml_nvalues ? &ml->sml_nvalues : NULL );
+ if ( rc != LDAP_SUCCESS ) {
+ goto cleanup_mod;
+ }
+ }
+
+ if ( rc != LDAP_SUCCESS ) {
+ goto cleanup_mod;
+ }
+ }
+ }
+
+next_mod:;
+ if ( mapping != NULL ) {
+ /* use new attribute description */
+ assert( mapping->m_dst_ad != NULL );
+ ml->sml_desc = mapping->m_dst_ad;
+ }
+
+ mlp = &ml->sml_next;
+ continue;
+
+skip_mod:;
+ *mlp = (*mlp)->sml_next;
+ continue;
+
+cleanup_mod:;
+ ml = *mlp;
+ *mlp = (*mlp)->sml_next;
+ slap_mod_free( &ml->sml_mod, 0 );
+ free( ml );
+ }
+
+ op->o_callback = &roc->cb;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_op_modrdn( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ int rc;
+ dncookie dc;
+
+ rwm_op_cb *roc = rwm_callback_get( op );
+
+ if ( op->orr_newSup ) {
+ struct berval nnewSup = BER_BVNULL;
+ struct berval newSup = BER_BVNULL;
+
+ /*
+ * Rewrite the new superior, if defined and required
+ */
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = rs;
+ dc.ctx = "newSuperiorDN";
+ newSup = *op->orr_newSup;
+ nnewSup = *op->orr_nnewSup;
+ rc = rwm_dn_massage_pretty_normalize( &dc, op->orr_newSup, &newSup, &nnewSup );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "newSuperiorDN massage error" );
+ return -1;
+ }
+
+ if ( op->orr_newSup->bv_val != newSup.bv_val ) {
+ op->orr_newSup = op->o_tmpalloc( sizeof( struct berval ),
+ op->o_tmpmemctx );
+ op->orr_nnewSup = op->o_tmpalloc( sizeof( struct berval ),
+ op->o_tmpmemctx );
+ *op->orr_newSup = newSup;
+ *op->orr_nnewSup = nnewSup;
+ }
+ }
+
+ /*
+ * Rewrite the newRDN, if needed
+ */
+ {
+ struct berval newrdn = BER_BVNULL;
+ struct berval nnewrdn = BER_BVNULL;
+
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = rs;
+ dc.ctx = "newRDN";
+ newrdn = op->orr_newrdn;
+ nnewrdn = op->orr_nnewrdn;
+ rc = rwm_dn_massage_pretty_normalize( &dc, &op->orr_newrdn, &newrdn, &nnewrdn );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "newRDN massage error" );
+ goto err;
+ }
+
+ if ( op->orr_newrdn.bv_val != newrdn.bv_val ) {
+ op->orr_newrdn = newrdn;
+ op->orr_nnewrdn = nnewrdn;
+ }
+ }
+
+ /*
+ * Rewrite the dn, if needed
+ */
+ rc = rwm_op_dn_massage( op, rs, "renameDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "renameDN massage error" );
+ goto err;
+ }
+
+ op->o_callback = &roc->cb;
+
+ rc = SLAP_CB_CONTINUE;
+
+ if ( 0 ) {
+err:;
+ if ( op->orr_newSup != roc->ros.orr_newSup ) {
+ ch_free( op->orr_newSup->bv_val );
+ ch_free( op->orr_nnewSup->bv_val );
+ op->o_tmpfree( op->orr_newSup, op->o_tmpmemctx );
+ op->o_tmpfree( op->orr_nnewSup, op->o_tmpmemctx );
+ op->orr_newSup = roc->ros.orr_newSup;
+ op->orr_nnewSup = roc->ros.orr_nnewSup;
+ }
+
+ if ( op->orr_newrdn.bv_val != roc->ros.orr_newrdn.bv_val ) {
+ ch_free( op->orr_newrdn.bv_val );
+ ch_free( op->orr_nnewrdn.bv_val );
+ op->orr_newrdn = roc->ros.orr_newrdn;
+ op->orr_nnewrdn = roc->ros.orr_nnewrdn;
+ }
+ }
+
+ return rc;
+}
+
+
+static int
+rwm_swap_attrs( Operation *op, SlapReply *rs )
+{
+ slap_callback *cb = op->o_callback;
+ rwm_op_state *ros = cb->sc_private;
+
+ rs->sr_attrs = ros->ors_attrs;
+
+ /* other overlays might have touched op->ors_attrs,
+ * so we restore the original version here, otherwise
+ * attribute-mapping might fail */
+ op->ors_attrs = ros->mapped_attrs;
+
+ return SLAP_CB_CONTINUE;
+}
+
+/*
+ * NOTE: this implementation of get/release entry is probably far from
+ * optimal. The rationale consists in intercepting the request directed
+ * to the underlying database, in order to rewrite/remap the request,
+ * perform it using the modified data, duplicate the resulting entry
+ * and finally free it when release is called.
+ * This implies that subsequent overlays are not called, as the request
+ * is directly shunted to the underlying database.
+ */
+static int
+rwm_entry_release_rw( Operation *op, Entry *e, int rw )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+
+ /* can't be ours */
+ if ( ((BackendInfo *)on->on_info->oi_orig)->bi_entry_get_rw == NULL ) {
+ return SLAP_CB_CONTINUE;
+ }
+
+ /* just free entry if (probably) ours */
+ if ( e->e_private == NULL && BER_BVISNULL( &e->e_bv ) ) {
+ entry_free( e );
+ return LDAP_SUCCESS;
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_entry_get_rw( Operation *op, struct berval *ndn,
+ ObjectClass *oc, AttributeDescription *at, int rw, Entry **ep )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ int rc;
+ BackendDB db;
+ Operation op2;
+ SlapReply rs = { REP_SEARCH };
+
+ rwm_op_state ros = { 0 };
+ struct berval mndn = BER_BVNULL;
+
+ if ( ((BackendInfo *)on->on_info->oi_orig)->bi_entry_get_rw == NULL ) {
+ return SLAP_CB_CONTINUE;
+ }
+
+ /* massage DN */
+ op2.o_tag = LDAP_REQ_SEARCH;
+ op2 = *op;
+ op2.o_req_dn = *ndn;
+ op2.o_req_ndn = *ndn;
+ rc = rwm_op_dn_massage( &op2, &rs, "searchDN", &ros );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_OTHER;
+ }
+
+ mndn = BER_BVISNULL( &ros.r_ndn ) ? *ndn : ros.r_ndn;
+
+ /* map attribute & objectClass */
+ if ( at != NULL ) {
+ }
+
+ if ( oc != NULL ) {
+ }
+
+ /* fetch entry */
+ db = *op->o_bd;
+ op2.o_bd = &db;
+ op2.o_bd->bd_info = (BackendInfo *)on->on_info->oi_orig;
+ op2.ors_attrs = slap_anlist_all_attributes;
+ rc = op2.o_bd->bd_info->bi_entry_get_rw( &op2, &mndn, oc, at, rw, ep );
+ if ( rc == LDAP_SUCCESS && *ep != NULL ) {
+ /* we assume be_entry_release() needs to be called */
+ rs.sr_flags = REP_ENTRY_MUSTRELEASE;
+ rs.sr_entry = *ep;
+
+ /* duplicate & release */
+ op2.o_bd->bd_info = (BackendInfo *)on;
+ rc = rwm_send_entry( &op2, &rs );
+ RS_ASSERT( rs.sr_flags & REP_ENTRY_MUSTFLUSH );
+ if ( rc == SLAP_CB_CONTINUE ) {
+ *ep = rs.sr_entry;
+ rc = LDAP_SUCCESS;
+ } else {
+ assert( rc != LDAP_SUCCESS && rs.sr_entry == *ep );
+ *ep = NULL;
+ op2.o_bd->bd_info = (BackendInfo *)on->on_info;
+ be_entry_release_r( &op2, rs.sr_entry );
+ op2.o_bd->bd_info = (BackendInfo *)on;
+ }
+ }
+
+ if ( !BER_BVISNULL( &ros.r_ndn) && ros.r_ndn.bv_val != ndn->bv_val ) {
+ op->o_tmpfree( ros.r_ndn.bv_val, op->o_tmpmemctx );
+ }
+
+ return rc;
+}
+
+static int
+rwm_op_search( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ int rc;
+ dncookie dc;
+
+ struct berval fstr = BER_BVNULL;
+ Filter *f = NULL;
+
+ AttributeName *an = NULL;
+
+ char *text = NULL;
+
+ rwm_op_cb *roc = rwm_callback_get( op );
+
+ rc = rewrite_session_var_set( rwmap->rwm_rw, op->o_conn,
+ "searchFilter", op->ors_filterstr.bv_val );
+ if ( rc == LDAP_SUCCESS )
+ rc = rwm_op_dn_massage( op, rs, "searchDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ text = "searchDN massage error";
+ goto error_return;
+ }
+
+ /*
+ * Rewrite the dn if needed
+ */
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = rs;
+ dc.ctx = "searchFilterAttrDN";
+
+ rc = rwm_filter_map_rewrite( op, &dc, op->ors_filter, &fstr );
+ if ( rc != LDAP_SUCCESS ) {
+ text = "searchFilter/searchFilterAttrDN massage error";
+ goto error_return;
+ }
+
+ f = str2filter_x( op, fstr.bv_val );
+
+ if ( f == NULL ) {
+ text = "massaged filter parse error";
+ goto error_return;
+ }
+
+ op->ors_filter = f;
+ op->ors_filterstr = fstr;
+
+ rc = rwm_map_attrnames( op, &rwmap->rwm_at, &rwmap->rwm_oc,
+ op->ors_attrs, &an, RWM_MAP );
+ if ( rc != LDAP_SUCCESS ) {
+ text = "attribute list mapping error";
+ goto error_return;
+ }
+
+ op->ors_attrs = an;
+ /* store the mapped Attributes for later usage, in
+ * the case that other overlays change op->ors_attrs */
+ roc->ros.mapped_attrs = an;
+ roc->cb.sc_response = rwm_swap_attrs;
+
+ op->o_callback = &roc->cb;
+
+ return SLAP_CB_CONTINUE;
+
+error_return:;
+ if ( an != NULL ) {
+ ch_free( an );
+ }
+
+ if ( f != NULL ) {
+ filter_free_x( op, f, 1 );
+ }
+
+ if ( !BER_BVISNULL( &fstr ) ) {
+ op->o_tmpfree( fstr.bv_val, op->o_tmpmemctx );
+ }
+
+ rwm_op_rollback( op, rs, &roc->ros );
+ op->oq_search = roc->ros.oq_search;
+ op->o_tmpfree( roc, op->o_tmpmemctx );
+
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, text );
+
+ return -1;
+
+}
+
+static int
+rwm_exop_passwd( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ int rc;
+ rwm_op_cb *roc;
+
+ struct berval id = BER_BVNULL,
+ pwold = BER_BVNULL,
+ pwnew = BER_BVNULL;
+ BerElement *ber = NULL;
+
+ if ( !BER_BVISNULL( &op->o_req_ndn ) ) {
+ return LDAP_SUCCESS;
+ }
+
+ if ( !SLAP_ISGLOBALOVERLAY( op->o_bd ) ) {
+ rs->sr_err = LDAP_OTHER;
+ return rs->sr_err;
+ }
+
+ rs->sr_err = slap_passwd_parse( op->ore_reqdata, &id,
+ &pwold, &pwnew, &rs->sr_text );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ return rs->sr_err;
+ }
+
+ if ( !BER_BVISNULL( &id ) ) {
+ char idNul = id.bv_val[id.bv_len];
+ id.bv_val[id.bv_len] = '\0';
+ rs->sr_err = dnPrettyNormal( NULL, &id, &op->o_req_dn,
+ &op->o_req_ndn, op->o_tmpmemctx );
+ id.bv_val[id.bv_len] = idNul;
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ rs->sr_text = "Invalid DN";
+ return rs->sr_err;
+ }
+
+ } else {
+ ber_dupbv_x( &op->o_req_dn, &op->o_dn, op->o_tmpmemctx );
+ ber_dupbv_x( &op->o_req_ndn, &op->o_ndn, op->o_tmpmemctx );
+ }
+
+ roc = rwm_callback_get( op );
+
+ rc = rwm_op_dn_massage( op, rs, "extendedDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "extendedDN massage error" );
+ return -1;
+ }
+
+ ber = ber_alloc_t( LBER_USE_DER );
+ if ( !ber ) {
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "No memory";
+ return rs->sr_err;
+ }
+ ber_printf( ber, "{" );
+ if ( !BER_BVISNULL( &id )) {
+ ber_printf( ber, "tO", LDAP_TAG_EXOP_MODIFY_PASSWD_ID,
+ &op->o_req_dn );
+ }
+ if ( !BER_BVISNULL( &pwold )) {
+ ber_printf( ber, "tO", LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, &pwold );
+ }
+ if ( !BER_BVISNULL( &pwnew )) {
+ ber_printf( ber, "tO", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, &pwnew );
+ }
+ ber_printf( ber, "N}" );
+ ber_flatten( ber, &op->ore_reqdata );
+ ber_free( ber, 1 );
+
+ op->o_callback = &roc->cb;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static struct exop {
+ struct berval oid;
+ BI_op_extended *extended;
+} exop_table[] = {
+ { BER_BVC(LDAP_EXOP_MODIFY_PASSWD), rwm_exop_passwd },
+ { BER_BVNULL, NULL }
+};
+
+static int
+rwm_extended( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ int rc;
+ rwm_op_cb *roc;
+
+ int i;
+
+ for ( i = 0; exop_table[i].extended != NULL; i++ ) {
+ if ( bvmatch( &exop_table[i].oid, &op->oq_extended.rs_reqoid ) )
+ {
+ rc = exop_table[i].extended( op, rs );
+ switch ( rc ) {
+ case LDAP_SUCCESS:
+ break;
+
+ case SLAP_CB_CONTINUE:
+ case SLAPD_ABANDON:
+ return rc;
+
+ default:
+ send_ldap_result( op, rs );
+ return rc;
+ }
+ break;
+ }
+ }
+
+ roc = rwm_callback_get( op );
+
+ rc = rwm_op_dn_massage( op, rs, "extendedDN", &roc->ros );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "extendedDN massage error" );
+ return -1;
+ }
+
+ /* TODO: rewrite/map extended data ? ... */
+ op->o_callback = &roc->cb;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static void
+rwm_matched( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ struct berval dn, mdn;
+ dncookie dc;
+ int rc;
+
+ if ( rs->sr_matched == NULL ) {
+ return;
+ }
+
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = rs;
+ dc.ctx = "matchedDN";
+ ber_str2bv( rs->sr_matched, 0, 0, &dn );
+ mdn = dn;
+ rc = rwm_dn_massage_pretty( &dc, &dn, &mdn );
+ if ( rc != LDAP_SUCCESS ) {
+ rs->sr_err = rc;
+ rs->sr_text = "Rewrite error";
+
+ } else if ( mdn.bv_val != dn.bv_val ) {
+ if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
+ ch_free( (void *)rs->sr_matched );
+
+ } else {
+ rs->sr_flags |= REP_MATCHED_MUSTBEFREED;
+ }
+ rs->sr_matched = mdn.bv_val;
+ }
+}
+
+static int
+rwm_attrs( Operation *op, SlapReply *rs, Attribute** a_first, int stripEntryDN )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ dncookie dc;
+ int rc;
+ Attribute **ap;
+ int isupdate;
+ int check_duplicate_attrs = 0;
+
+ /*
+ * Rewrite the dn attrs, if needed
+ */
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = NULL;
+
+ /* FIXME: the entries are in the remote mapping form;
+ * so we need to select those attributes we are willing
+ * to return, and remap them accordingly */
+
+ /* FIXME: in principle, one could map an attribute
+ * on top of another, which already exists.
+ * As such, in the end there might exist more than
+ * one instance of an attribute.
+ * We should at least check if this occurs, and issue
+ * an error (because multiple instances of attrs in
+ * response are not valid), or merge the values (what
+ * about duplicate values?) */
+ isupdate = be_shadow_update( op );
+ for ( ap = a_first; *ap; ) {
+ struct ldapmapping *mapping = NULL;
+ int drop_missing;
+ int last = -1;
+ Attribute *a;
+
+ if ( ( rwmap->rwm_flags & RWM_F_DROP_UNREQUESTED_ATTRS ) &&
+ op->ors_attrs != NULL &&
+ !SLAP_USERATTRS( rs->sr_attr_flags ) &&
+ !ad_inlist( (*ap)->a_desc, op->ors_attrs ) )
+ {
+ goto cleanup_attr;
+ }
+
+ drop_missing = rwm_mapping( &rwmap->rwm_at,
+ &(*ap)->a_desc->ad_cname, &mapping, RWM_REMAP );
+ if ( drop_missing || ( mapping != NULL && BER_BVISEMPTY( &mapping->m_dst ) ) )
+ {
+ goto cleanup_attr;
+ }
+ if ( mapping != NULL ) {
+ assert( mapping->m_dst_ad != NULL );
+
+ /* try to normalize mapped Attributes if the original
+ * AttributeType was not normalized */
+ if ( (!(*ap)->a_desc->ad_type->sat_equality ||
+ !(*ap)->a_desc->ad_type->sat_equality->smr_normalize) &&
+ mapping->m_dst_ad->ad_type->sat_equality &&
+ mapping->m_dst_ad->ad_type->sat_equality->smr_normalize )
+ {
+ if ((rwmap->rwm_flags & RWM_F_NORMALIZE_MAPPED_ATTRS))
+ {
+ int i = 0;
+
+ last = (*ap)->a_numvals;
+ if ( last )
+ {
+ (*ap)->a_nvals = ch_malloc( (last+1) * sizeof(struct berval) );
+
+ for ( i = 0; !BER_BVISNULL( &(*ap)->a_vals[i]); i++ ) {
+ int rc;
+ /*
+ * check that each value is valid per syntax
+ * and pretty if appropriate
+ */
+ rc = mapping->m_dst_ad->ad_type->sat_equality->smr_normalize(
+ SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+ mapping->m_dst_ad->ad_type->sat_syntax,
+ mapping->m_dst_ad->ad_type->sat_equality,
+ &(*ap)->a_vals[i], &(*ap)->a_nvals[i],
+ NULL );
+
+ if ( rc != LDAP_SUCCESS ) {
+ /* FIXME: this is wrong, putting a non-normalized value
+ * into nvals. But when a proxy sends us bogus data,
+ * we still need to give it to the client, even if it
+ * violates the syntax. I.e., we don't want to silently
+ * drop things and trigger an apparent data loss.
+ */
+ ber_dupbv( &(*ap)->a_nvals[i], &(*ap)->a_vals[i] );
+ }
+ }
+ BER_BVZERO( &(*ap)->a_nvals[i] );
+ }
+
+ } else {
+ assert( (*ap)->a_nvals == (*ap)->a_vals );
+ (*ap)->a_nvals = NULL;
+ ber_bvarray_dup_x( &(*ap)->a_nvals, (*ap)->a_vals, NULL );
+ }
+ }
+
+ /* rewrite the attribute description */
+ (*ap)->a_desc = mapping->m_dst_ad;
+
+ /* will need to check for duplicate attrs */
+ check_duplicate_attrs++;
+ }
+
+ if ( (*ap)->a_desc == slap_schema.si_ad_entryDN ) {
+ if ( stripEntryDN ) {
+ /* will be generated by frontend */
+ goto cleanup_attr;
+ }
+
+ } else if ( !isupdate
+ && !get_relax( op )
+ && (*ap)->a_desc->ad_type->sat_no_user_mod
+ && (*ap)->a_desc->ad_type != slap_schema.si_at_undefined )
+ {
+ goto next_attr;
+ }
+
+ if ( last == -1 ) { /* not yet counted */
+ last = (*ap)->a_numvals;
+ }
+
+ if ( last == 0 ) {
+ /* empty? leave it in place because of attrsonly and vlv */
+ goto next_attr;
+ }
+ last--;
+
+ if ( (*ap)->a_desc == slap_schema.si_ad_objectClass
+ || (*ap)->a_desc == slap_schema.si_ad_structuralObjectClass )
+ {
+ struct berval *bv;
+
+ for ( bv = (*ap)->a_vals; !BER_BVISNULL( bv ); bv++ ) {
+ struct berval mapped;
+
+ rwm_map( &rwmap->rwm_oc, &bv[0], &mapped, RWM_REMAP );
+ if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
+remove_oc:;
+ ch_free( bv[0].bv_val );
+ BER_BVZERO( &bv[0] );
+ if ( &(*ap)->a_vals[last] > &bv[0] ) {
+ bv[0] = (*ap)->a_vals[last];
+ BER_BVZERO( &(*ap)->a_vals[last] );
+ }
+ last--;
+ bv--;
+
+ } else if ( mapped.bv_val != bv[0].bv_val
+ && ber_bvstrcasecmp( &mapped, &bv[0] ) != 0 )
+ {
+ int i;
+
+ for ( i = 0; !BER_BVISNULL( &(*ap)->a_vals[ i ] ); i++ ) {
+ if ( &(*ap)->a_vals[ i ] == bv ) {
+ continue;
+ }
+
+ if ( ber_bvstrcasecmp( &mapped, &(*ap)->a_vals[ i ] ) == 0 ) {
+ break;
+ }
+ }
+
+ if ( !BER_BVISNULL( &(*ap)->a_vals[ i ] ) ) {
+ goto remove_oc;
+ }
+
+ /*
+ * FIXME: after LBER_FREEing
+ * the value is replaced by
+ * ch_alloc'ed memory
+ */
+ ber_bvreplace( &bv[0], &mapped );
+
+ /* FIXME: will need to check
+ * if the structuralObjectClass
+ * changed */
+ }
+ }
+
+ /*
+ * It is necessary to try to rewrite attributes with
+ * dn syntax because they might be used in ACLs as
+ * members of groups; since ACLs are applied to the
+ * rewritten stuff, no dn-based subject clause could
+ * be used at the ldap backend side (see
+ * http://www.OpenLDAP.org/faq/data/cache/452.html)
+ * The problem can be overcome by moving the dn-based
+ * ACLs to the target directory server, and letting
+ * everything pass thru the ldap backend. */
+ /* FIXME: handle distinguishedName-like syntaxes, like
+ * nameAndOptionalUID */
+ } else if ( (*ap)->a_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName
+ || ( mapping != NULL && mapping->m_src_ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) )
+ {
+ dc.ctx = "searchAttrDN";
+ rc = rwm_dnattr_result_rewrite( &dc, (*ap)->a_vals, (*ap)->a_nvals );
+ if ( rc != LDAP_SUCCESS ) {
+ goto cleanup_attr;
+ }
+
+ } else if ( (*ap)->a_desc == slap_schema.si_ad_ref ) {
+ dc.ctx = "searchAttrDN";
+ rc = rwm_referral_result_rewrite( &dc, (*ap)->a_vals );
+ if ( rc != LDAP_SUCCESS ) {
+ goto cleanup_attr;
+ }
+ }
+
+
+next_attr:;
+ ap = &(*ap)->a_next;
+ continue;
+
+cleanup_attr:;
+ a = *ap;
+ *ap = (*ap)->a_next;
+
+ attr_free( a );
+ }
+
+ /* only check if some mapping occurred */
+ if ( check_duplicate_attrs ) {
+ for ( ap = a_first; *ap != NULL; ap = &(*ap)->a_next ) {
+ Attribute **tap;
+
+ for ( tap = &(*ap)->a_next; *tap != NULL; ) {
+ if ( (*tap)->a_desc == (*ap)->a_desc ) {
+ Entry e = { 0 };
+ Modification mod = { 0 };
+ const char *text = NULL;
+ char textbuf[ SLAP_TEXT_BUFLEN ];
+ Attribute *next = (*tap)->a_next;
+
+ BER_BVSTR( &e.e_name, "" );
+ BER_BVSTR( &e.e_nname, "" );
+ e.e_attrs = *ap;
+ mod.sm_op = LDAP_MOD_ADD;
+ mod.sm_desc = (*ap)->a_desc;
+ mod.sm_type = mod.sm_desc->ad_cname;
+ mod.sm_numvals = (*tap)->a_numvals;
+ mod.sm_values = (*tap)->a_vals;
+ if ( (*tap)->a_nvals != (*tap)->a_vals ) {
+ mod.sm_nvalues = (*tap)->a_nvals;
+ }
+
+ (void)modify_add_values( &e, &mod,
+ /* permissive */ 1,
+ &text, textbuf, sizeof( textbuf ) );
+
+ /* should not insert new attrs! */
+ assert( e.e_attrs == *ap );
+
+ attr_free( *tap );
+ *tap = next;
+
+ } else {
+ tap = &(*tap)->a_next;
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+/* Should return SLAP_CB_CONTINUE or failure, never LDAP_SUCCESS. */
+static int
+rwm_send_entry( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ Entry *e = NULL;
+ struct berval dn = BER_BVNULL,
+ ndn = BER_BVNULL;
+ dncookie dc;
+ int rc;
+
+ assert( rs->sr_entry != NULL );
+
+ /*
+ * Rewrite the dn of the result, if needed
+ */
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = NULL;
+ dc.ctx = "searchEntryDN";
+
+ e = rs->sr_entry;
+ if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) {
+ /* FIXME: all we need to duplicate are:
+ * - dn
+ * - ndn
+ * - attributes that are requested
+ * - no values if attrsonly is set
+ */
+ e = entry_dup( e );
+ if ( e == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto fail;
+ }
+ } else if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
+ /* ITS#6423: REP_ENTRY_MUSTRELEASE incompatible
+ * with REP_ENTRY_MODIFIABLE */
+ RS_ASSERT( 0 );
+ rc = 1;
+ goto fail;
+ }
+
+ /*
+ * Note: this may fail if the target host(s) schema differs
+ * from the one known to the meta, and a DN with unknown
+ * attributes is returned.
+ */
+ dn = e->e_name;
+ ndn = e->e_nname;
+ rc = rwm_dn_massage_pretty_normalize( &dc, &e->e_name, &dn, &ndn );
+ if ( rc != LDAP_SUCCESS ) {
+ rc = 1;
+ goto fail;
+ }
+
+ if ( e->e_name.bv_val != dn.bv_val ) {
+ ch_free( e->e_name.bv_val );
+ ch_free( e->e_nname.bv_val );
+
+ e->e_name = dn;
+ e->e_nname = ndn;
+ }
+
+ /* TODO: map entry attribute types, objectclasses
+ * and dn-valued attribute values */
+
+ /* FIXME: the entries are in the remote mapping form;
+ * so we need to select those attributes we are willing
+ * to return, and remap them accordingly */
+ (void)rwm_attrs( op, rs, &e->e_attrs, 1 );
+
+ if ( e != rs->sr_entry ) {
+ /* Reimplementing rs_replace_entry(), I suppose to
+ * bypass our own dubious rwm_entry_release_rw() */
+ if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
+ rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ be_entry_release_r( op, rs->sr_entry );
+ op->o_bd->bd_info = (BackendInfo *)on;
+ } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
+ entry_free( rs->sr_entry );
+ }
+ rs->sr_entry = e;
+ rs->sr_flags |= REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED;
+ }
+
+ return SLAP_CB_CONTINUE;
+
+fail:;
+ if ( e != NULL && e != rs->sr_entry ) {
+ if ( e->e_name.bv_val == dn.bv_val ) {
+ BER_BVZERO( &e->e_name );
+ }
+
+ if ( e->e_nname.bv_val == ndn.bv_val ) {
+ BER_BVZERO( &e->e_nname );
+ }
+
+ entry_free( e );
+ }
+
+ if ( !BER_BVISNULL( &dn ) ) {
+ ch_free( dn.bv_val );
+ }
+
+ if ( !BER_BVISNULL( &ndn ) ) {
+ ch_free( ndn.bv_val );
+ }
+
+ return rc;
+}
+
+static int
+rwm_operational( Operation *op, SlapReply *rs )
+{
+ /* FIXME: the entries are in the remote mapping form;
+ * so we need to select those attributes we are willing
+ * to return, and remap them accordingly */
+ if ( rs->sr_operational_attrs ) {
+ rwm_attrs( op, rs, &rs->sr_operational_attrs, 1 );
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+
+#if 0
+/* don't use this; it cannot be reverted, and leaves op->o_req_dn
+ * rewritten for subsequent operations; fine for plain suffixmassage,
+ * but destroys everything else */
+static int
+rwm_chk_referrals( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ int rc;
+
+ rc = rwm_op_dn_massage( op, rs, "referralCheckDN" );
+ if ( rc != LDAP_SUCCESS ) {
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
+ send_ldap_error( op, rs, rc, "referralCheckDN massage error" );
+ return -1;
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+#endif
+
+static int
+rwm_rw_config(
+ BackendDB *be,
+ const char *fname,
+ int lineno,
+ int argc,
+ char **argv )
+{
+ slap_overinst *on = (slap_overinst *) be->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ return rewrite_parse( rwmap->rwm_rw,
+ fname, lineno, argc, argv );
+
+ return 0;
+}
+
+static int
+rwm_suffixmassage_config(
+ BackendDB *be,
+ const char *fname,
+ int lineno,
+ int argc,
+ char **argv )
+{
+ slap_overinst *on = (slap_overinst *) be->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ struct berval bvnc, nvnc, pvnc, brnc, nrnc, prnc;
+ int massaged;
+ int rc;
+
+ /*
+ * syntax:
+ *
+ * suffixmassage [<suffix>] <massaged suffix>
+ *
+ * the [<suffix>] field must be defined as a valid suffix
+ * for the current database;
+ * the <massaged suffix> shouldn't have already been
+ * defined as a valid suffix for the current server
+ */
+ if ( argc == 2 ) {
+ if ( be->be_suffix == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+ " \"suffixMassage [<suffix>]"
+ " <massaged suffix>\" without "
+ "<suffix> part requires database "
+ "suffix be defined first.\n",
+ fname, lineno, 0 );
+ return 1;
+ }
+ bvnc = be->be_suffix[ 0 ];
+ massaged = 1;
+
+ } else if ( argc == 3 ) {
+ ber_str2bv( argv[ 1 ], 0, 0, &bvnc );
+ massaged = 2;
+
+ } else {
+ Debug( LDAP_DEBUG_ANY, "%s: line %d: syntax is"
+ " \"suffixMassage [<suffix>]"
+ " <massaged suffix>\"\n",
+ fname, lineno, 0 );
+ return 1;
+ }
+
+ if ( dnPrettyNormal( NULL, &bvnc, &pvnc, &nvnc, NULL ) != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_ANY, "%s: line %d: suffix DN %s is invalid\n",
+ fname, lineno, bvnc.bv_val );
+ return 1;
+ }
+
+ ber_str2bv( argv[ massaged ], 0, 0, &brnc );
+ if ( dnPrettyNormal( NULL, &brnc, &prnc, &nrnc, NULL ) != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_ANY, "%s: line %d: suffix DN %s is invalid\n",
+ fname, lineno, brnc.bv_val );
+ free( nvnc.bv_val );
+ free( pvnc.bv_val );
+ return 1;
+ }
+
+ /*
+ * The suffix massaging is emulated
+ * by means of the rewrite capabilities
+ */
+ rc = rwm_suffix_massage_config( rwmap->rwm_rw,
+ &pvnc, &nvnc, &prnc, &nrnc );
+ free( nvnc.bv_val );
+ free( pvnc.bv_val );
+ free( nrnc.bv_val );
+ free( prnc.bv_val );
+
+ return rc;
+}
+
+static int
+rwm_m_config(
+ BackendDB *be,
+ const char *fname,
+ int lineno,
+ int argc,
+ char **argv )
+{
+ slap_overinst *on = (slap_overinst *) be->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ /* objectclass/attribute mapping */
+ return rwm_map_config( &rwmap->rwm_oc,
+ &rwmap->rwm_at,
+ fname, lineno, argc, argv );
+}
+
+static int
+rwm_response( Operation *op, SlapReply *rs )
+{
+ slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ int rc;
+
+ if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
+ return rwm_send_entry( op, rs );
+ }
+
+ switch( op->o_tag ) {
+ case LDAP_REQ_SEARCH:
+ case LDAP_REQ_BIND:
+ case LDAP_REQ_ADD:
+ case LDAP_REQ_DELETE:
+ case LDAP_REQ_MODRDN:
+ case LDAP_REQ_MODIFY:
+ case LDAP_REQ_COMPARE:
+ case LDAP_REQ_EXTENDED:
+ if ( rs->sr_ref ) {
+ dncookie dc;
+
+ /*
+ * Rewrite the dn of the referrals, if needed
+ */
+ dc.rwmap = rwmap;
+ dc.conn = op->o_conn;
+ dc.rs = NULL;
+ dc.ctx = "referralDN";
+ rc = rwm_referral_result_rewrite( &dc, rs->sr_ref );
+ /* FIXME: impossible, so far */
+ if ( rc != LDAP_SUCCESS ) {
+ rs->sr_err = rc;
+ break;
+ }
+ }
+
+ rwm_matched( op, rs );
+ break;
+ }
+
+ return SLAP_CB_CONTINUE;
+}
+
+static int
+rwm_db_config(
+ BackendDB *be,
+ const char *fname,
+ int lineno,
+ int argc,
+ char **argv )
+{
+ slap_overinst *on = (slap_overinst *) be->bd_info;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ int rc = 0;
+ char *argv0 = NULL;
+
+ if ( strncasecmp( argv[ 0 ], "rwm-", STRLENOF( "rwm-" ) ) == 0 ) {
+ argv0 = argv[ 0 ];
+ argv[ 0 ] = &argv0[ STRLENOF( "rwm-" ) ];
+ }
+
+ if ( strncasecmp( argv[0], "rewrite", STRLENOF("rewrite") ) == 0 ) {
+ rc = rwm_rw_config( be, fname, lineno, argc, argv );
+
+ } else if ( strcasecmp( argv[0], "map" ) == 0 ) {
+ rc = rwm_m_config( be, fname, lineno, argc, argv );
+
+ } else if ( strcasecmp( argv[0], "suffixmassage" ) == 0 ) {
+ rc = rwm_suffixmassage_config( be, fname, lineno, argc, argv );
+
+ } else if ( strcasecmp( argv[0], "t-f-support" ) == 0 ) {
+ if ( argc != 2 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s: line %d: \"t-f-support {no|yes|discover}\" needs 1 argument.\n",
+ fname, lineno, 0 );
+ return( 1 );
+ }
+
+ if ( strcasecmp( argv[ 1 ], "no" ) == 0 ) {
+ rwmap->rwm_flags &= ~(RWM_F_SUPPORT_T_F_MASK2);
+
+ } else if ( strcasecmp( argv[ 1 ], "yes" ) == 0 ) {
+ rwmap->rwm_flags |= RWM_F_SUPPORT_T_F;
+
+ /* TODO: not implemented yet */
+ } else if ( strcasecmp( argv[ 1 ], "discover" ) == 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s: line %d: \"discover\" not supported yet "
+ "in \"t-f-support {no|yes|discover}\".\n",
+ fname, lineno, 0 );
+ return( 1 );
+#if 0
+ rwmap->rwm_flags |= RWM_F_SUPPORT_T_F_DISCOVER;
+#endif
+
+ } else {
+ Debug( LDAP_DEBUG_ANY,
+ "%s: line %d: unknown value \"%s\" for \"t-f-support {no|yes|discover}\".\n",
+ fname, lineno, argv[ 1 ] );
+ return 1;
+ }
+
+ } else if ( strcasecmp( argv[0], "normalize-mapped-attrs" ) == 0 ) {
+ if ( argc !=2 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s: line %d: \"normalize-mapped-attrs {no|yes}\" needs 1 argument.\n",
+ fname, lineno, 0 );
+ return( 1 );
+ }
+
+ if ( strcasecmp( argv[ 1 ], "no" ) == 0 ) {
+ rwmap->rwm_flags &= ~(RWM_F_NORMALIZE_MAPPED_ATTRS);
+
+ } else if ( strcasecmp( argv[ 1 ], "yes" ) == 0 ) {
+ rwmap->rwm_flags |= RWM_F_NORMALIZE_MAPPED_ATTRS;
+ }
+
+ } else {
+ rc = SLAP_CONF_UNKNOWN;
+ }
+
+ if ( argv0 ) {
+ argv[ 0 ] = argv0;
+ }
+
+ return rc;
+}
+
+/*
+ * dynamic configuration...
+ */
+
+enum {
+ /* rewrite */
+ RWM_CF_REWRITE = 1,
+
+ /* map */
+ RWM_CF_MAP,
+ RWM_CF_T_F_SUPPORT,
+ RWM_CF_NORMALIZE_MAPPED,
+ RWM_CF_DROP_UNREQUESTED,
+
+ RWM_CF_LAST
+};
+
+static slap_verbmasks t_f_mode[] = {
+ { BER_BVC( "true" ), RWM_F_SUPPORT_T_F },
+ { BER_BVC( "yes" ), RWM_F_SUPPORT_T_F },
+ { BER_BVC( "discover" ), RWM_F_SUPPORT_T_F_DISCOVER },
+ { BER_BVC( "false" ), RWM_F_NONE },
+ { BER_BVC( "no" ), RWM_F_NONE },
+ { BER_BVNULL, 0 }
+};
+
+static ConfigDriver rwm_cf_gen;
+
+static ConfigTable rwmcfg[] = {
+ { "rwm-rewrite", "rewrite",
+ 2, 0, STRLENOF("rwm-rewrite"),
+ ARG_MAGIC|RWM_CF_REWRITE, rwm_cf_gen,
+ "( OLcfgOvAt:16.1 NAME 'olcRwmRewrite' "
+ "DESC 'Rewrites strings' "
+ "EQUALITY caseIgnoreMatch "
+ "SYNTAX OMsDirectoryString "
+ "X-ORDERED 'VALUES' )",
+ NULL, NULL },
+
+ { "rwm-suffixmassage", "[virtual]> <real",
+ 2, 3, 0, ARG_MAGIC|RWM_CF_REWRITE, rwm_cf_gen,
+ NULL, NULL, NULL },
+
+ { "rwm-t-f-support", "true|false|discover",
+ 2, 2, 0, ARG_MAGIC|RWM_CF_T_F_SUPPORT, rwm_cf_gen,
+ "( OLcfgOvAt:16.2 NAME 'olcRwmTFSupport' "
+ "DESC 'Absolute filters support' "
+ "SYNTAX OMsDirectoryString "
+ "SINGLE-VALUE )",
+ NULL, NULL },
+
+ { "rwm-map", "{objectClass|attribute}",
+ 2, 4, 0, ARG_MAGIC|RWM_CF_MAP, rwm_cf_gen,
+ "( OLcfgOvAt:16.3 NAME 'olcRwmMap' "
+ "DESC 'maps attributes/objectClasses' "
+ "EQUALITY caseIgnoreMatch "
+ "SYNTAX OMsDirectoryString "
+ "X-ORDERED 'VALUES' )",
+ NULL, NULL },
+
+ { "rwm-normalize-mapped-attrs", "true|false",
+ 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|RWM_CF_NORMALIZE_MAPPED, rwm_cf_gen,
+ "( OLcfgOvAt:16.4 NAME 'olcRwmNormalizeMapped' "
+ "DESC 'Normalize mapped attributes/objectClasses' "
+ "SYNTAX OMsBoolean "
+ "SINGLE-VALUE )",
+ NULL, NULL },
+
+ { "rwm-drop-unrequested-attrs", "true|false",
+ 2, 2, 0, ARG_MAGIC|ARG_ON_OFF|RWM_CF_DROP_UNREQUESTED, rwm_cf_gen,
+ "( OLcfgOvAt:16.5 NAME 'olcRwmDropUnrequested' "
+ "DESC 'Drop unrequested attributes' "
+ "SYNTAX OMsBoolean "
+ "SINGLE-VALUE )",
+ NULL, NULL },
+
+ { NULL, NULL, 0, 0, 0, ARG_IGNORED }
+};
+
+static ConfigOCs rwmocs[] = {
+ { "( OLcfgOvOc:16.1 "
+ "NAME 'olcRwmConfig' "
+ "DESC 'Rewrite/remap configuration' "
+ "SUP olcOverlayConfig "
+ "MAY ( "
+ "olcRwmRewrite $ "
+ "olcRwmTFSupport $ "
+ "olcRwmMap $ "
+ "olcRwmNormalizeMapped $ "
+ "olcRwmDropUnrequested"
+ ") )",
+ Cft_Overlay, rwmcfg, NULL, NULL },
+ { NULL, 0, NULL }
+};
+
+static void
+slap_bv_x_ordered_unparse( BerVarray in, BerVarray *out )
+{
+ int i;
+ BerVarray bva = NULL;
+ char ibuf[32], *ptr;
+ struct berval idx;
+
+ assert( in != NULL );
+
+ for ( i = 0; !BER_BVISNULL( &in[i] ); i++ )
+ /* count'em */ ;
+
+ if ( i == 0 ) {
+ return;
+ }
+
+ idx.bv_val = ibuf;
+
+ bva = ch_malloc( ( i + 1 ) * sizeof(struct berval) );
+ BER_BVZERO( &bva[ 0 ] );
+
+ for ( i = 0; !BER_BVISNULL( &in[i] ); i++ ) {
+ idx.bv_len = snprintf( idx.bv_val, sizeof( ibuf ), "{%d}", i );
+ if ( idx.bv_len >= sizeof( ibuf ) ) {
+ ber_bvarray_free( bva );
+ return;
+ }
+
+ bva[i].bv_len = idx.bv_len + in[i].bv_len;
+ bva[i].bv_val = ch_malloc( bva[i].bv_len + 1 );
+ ptr = lutil_strcopy( bva[i].bv_val, ibuf );
+ ptr = lutil_strcopy( ptr, in[i].bv_val );
+ *ptr = '\0';
+ BER_BVZERO( &bva[ i + 1 ] );
+ }
+
+ *out = bva;
+}
+
+static int
+rwm_bva_add(
+ BerVarray *bva,
+ int idx,
+ char **argv )
+{
+ char *line;
+ struct berval bv;
+
+ line = ldap_charray2str( argv, "\" \"" );
+ if ( line != NULL ) {
+ int len = strlen( argv[ 0 ] );
+
+ ber_str2bv( line, 0, 0, &bv );
+ AC_MEMCPY( &bv.bv_val[ len ], &bv.bv_val[ len + 1 ],
+ bv.bv_len - ( len + 1 ) );
+ bv.bv_val[ bv.bv_len - 1 ] = '"';
+
+ if ( idx == -1 ) {
+ ber_bvarray_add( bva, &bv );
+
+ } else {
+ (*bva)[ idx ] = bv;
+ }
+
+ return 0;
+ }
+
+ return -1;
+}
+
+static int
+rwm_bva_rewrite_add(
+ struct ldaprwmap *rwmap,
+ int idx,
+ char **argv )
+{
+ return rwm_bva_add( &rwmap->rwm_bva_rewrite, idx, argv );
+}
+
+#ifdef unused
+static int
+rwm_bva_map_add(
+ struct ldaprwmap *rwmap,
+ int idx,
+ char **argv )
+{
+ return rwm_bva_add( &rwmap->rwm_bva_map, idx, argv );
+}
+#endif /* unused */
+
+static int
+rwm_info_init( struct rewrite_info ** rwm_rw )
+{
+ char *rargv[ 3 ];
+
+ *rwm_rw = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
+ if ( *rwm_rw == NULL ) {
+ return -1;
+ }
+
+ /* this rewriteContext by default must be null;
+ * rules can be added if required */
+ rargv[ 0 ] = "rewriteContext";
+ rargv[ 1 ] = "searchFilter";
+ rargv[ 2 ] = NULL;
+ rewrite_parse( *rwm_rw, "<suffix massage>", 1, 2, rargv );
+
+ rargv[ 0 ] = "rewriteContext";
+ rargv[ 1 ] = "default";
+ rargv[ 2 ] = NULL;
+ rewrite_parse( *rwm_rw, "<suffix massage>", 2, 2, rargv );
+
+ return 0;
+}
+
+static int
+rwm_cf_gen( ConfigArgs *c )
+{
+ slap_overinst *on = (slap_overinst *)c->bi;
+ struct ldaprwmap *rwmap =
+ (struct ldaprwmap *)on->on_bi.bi_private;
+
+ BackendDB db;
+ char *argv0;
+ int idx0 = 0;
+ int rc = 0;
+
+ db = *c->be;
+ db.bd_info = c->bi;
+
+ if ( c->op == SLAP_CONFIG_EMIT ) {
+ struct berval bv = BER_BVNULL;
+
+ switch ( c->type ) {
+ case RWM_CF_REWRITE:
+ if ( rwmap->rwm_bva_rewrite == NULL ) {
+ rc = 1;
+
+ } else {
+ slap_bv_x_ordered_unparse( rwmap->rwm_bva_rewrite, &c->rvalue_vals );
+ if ( !c->rvalue_vals ) {
+ rc = 1;
+ }
+ }
+ break;
+
+ case RWM_CF_T_F_SUPPORT:
+ enum_to_verb( t_f_mode, (rwmap->rwm_flags & RWM_F_SUPPORT_T_F_MASK2), &bv );
+ if ( BER_BVISNULL( &bv ) ) {
+ /* there's something wrong... */
+ assert( 0 );
+ rc = 1;
+
+ } else {
+ value_add_one( &c->rvalue_vals, &bv );
+ }
+ break;
+
+ case RWM_CF_MAP:
+ if ( rwmap->rwm_bva_map == NULL ) {
+ rc = 1;
+
+ } else {
+ slap_bv_x_ordered_unparse( rwmap->rwm_bva_map, &c->rvalue_vals );
+ if ( !c->rvalue_vals ) {
+ rc = 1;
+ }
+ }
+ break;
+
+ case RWM_CF_NORMALIZE_MAPPED:
+ c->value_int = ( rwmap->rwm_flags & RWM_F_NORMALIZE_MAPPED_ATTRS );
+ break;
+
+ case RWM_CF_DROP_UNREQUESTED:
+ c->value_int = ( rwmap->rwm_flags & RWM_F_DROP_UNREQUESTED_ATTRS );
+ break;
+
+ default:
+ assert( 0 );
+ rc = 1;
+ }
+
+ return rc;
+
+ } else if ( c->op == LDAP_MOD_DELETE ) {
+ switch ( c->type ) {
+ case RWM_CF_REWRITE:
+ if ( c->valx >= 0 ) {
+ int i;
+
+ for ( i = 0; !BER_BVISNULL( &rwmap->rwm_bva_rewrite[ i ] ); i++ )
+ /* count'em */ ;
+
+ if ( c->valx >= i ) {
+ rc = 1;
+ break;
+ }
+
+ ber_memfree( rwmap->rwm_bva_rewrite[ c->valx ].bv_val );
+ for ( i = c->valx; !BER_BVISNULL( &rwmap->rwm_bva_rewrite[ i + 1 ] ); i++ )
+ {
+ rwmap->rwm_bva_rewrite[ i ] = rwmap->rwm_bva_rewrite[ i + 1 ];
+ }
+ BER_BVZERO( &rwmap->rwm_bva_rewrite[ i ] );
+
+ rewrite_info_delete( &rwmap->rwm_rw );
+ assert( rwmap->rwm_rw == NULL );
+
+ rc = rwm_info_init( &rwmap->rwm_rw );
+
+ for ( i = 0; !BER_BVISNULL( &rwmap->rwm_bva_rewrite[ i ] ); i++ )
+ {
+ ConfigArgs ca = { 0 };
+
+ ca.line = rwmap->rwm_bva_rewrite[ i ].bv_val;
+ ca.argc = 0;
+ init_config_argv( &ca );
+ config_parse_ldif( &ca );
+
+ argv0 = ca.argv[ 0 ];
+ ca.argv[ 0 ] += STRLENOF( "rwm-" );
+
+ if ( strcasecmp( ca.argv[ 0 ], "suffixmassage" ) == 0 ) {
+ rc = rwm_suffixmassage_config( &db, c->fname, c->lineno,
+ ca.argc, ca.argv );
+
+ } else {
+ rc = rwm_rw_config( &db, c->fname, c->lineno,
+ ca.argc, ca.argv );
+ }
+
+ ca.argv[ 0 ] = argv0;
+
+ ch_free( ca.tline );
+ ch_free( ca.argv );
+
+ assert( rc == 0 );
+ }
+
+ } else if ( rwmap->rwm_rw != NULL ) {
+ rewrite_info_delete( &rwmap->rwm_rw );
+ assert( rwmap->rwm_rw == NULL );
+
+ ber_bvarray_free( rwmap->rwm_bva_rewrite );
+ rwmap->rwm_bva_rewrite = NULL;
+
+ rc = rwm_info_init( &rwmap->rwm_rw );
+ }
+ break;
+
+ case RWM_CF_T_F_SUPPORT:
+ rwmap->rwm_flags &= ~RWM_F_SUPPORT_T_F_MASK2;
+ break;
+
+ case RWM_CF_MAP:
+ if ( c->valx >= 0 ) {
+ struct ldapmap rwm_oc = rwmap->rwm_oc;
+ struct ldapmap rwm_at = rwmap->rwm_at;
+ char *argv[5];
+ int cnt = 0;
+
+ if ( rwmap->rwm_bva_map ) {
+ for ( ; !BER_BVISNULL( &rwmap->rwm_bva_map[ cnt ] ); cnt++ )
+ /* count */ ;
+ }
+
+ if ( c->valx >= cnt ) {
+ rc = 1;
+ break;
+ }
+
+ memset( &rwmap->rwm_oc, 0, sizeof( rwmap->rwm_oc ) );
+ memset( &rwmap->rwm_at, 0, sizeof( rwmap->rwm_at ) );
+
+ /* re-parse all mappings except the one
+ * that needs to be eliminated */
+ argv[0] = "map";
+ for ( cnt = 0; !BER_BVISNULL( &rwmap->rwm_bva_map[ cnt ] ); cnt++ ) {
+ ConfigArgs ca = { 0 };
+
+ if ( cnt == c->valx ) {
+ continue;
+ }
+
+ ca.line = rwmap->rwm_bva_map[ cnt ].bv_val;
+ ca.argc = 0;
+ init_config_argv( &ca );
+ config_parse_ldif( &ca );
+
+ argv[1] = ca.argv[0];
+ argv[2] = ca.argv[1];
+ argv[3] = ca.argv[2];
+ argv[4] = ca.argv[3];
+
+ rc = rwm_m_config( &db, c->fname, c->lineno, ca.argc + 1, argv );
+
+ ch_free( ca.tline );
+ ch_free( ca.argv );
+
+ /* in case of failure, restore
+ * the existing mapping */
+ if ( rc ) {
+ avl_free( rwmap->rwm_oc.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_oc.map, rwm_mapping_free );
+ avl_free( rwmap->rwm_at.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_at.map, rwm_mapping_free );
+ rwmap->rwm_oc = rwm_oc;
+ rwmap->rwm_at = rwm_at;
+ break;
+ }
+ }
+
+ /* in case of success, destroy the old mapping
+ * and eliminate the deleted one */
+ if ( rc == 0 ) {
+ avl_free( rwm_oc.remap, rwm_mapping_dst_free );
+ avl_free( rwm_oc.map, rwm_mapping_free );
+ avl_free( rwm_at.remap, rwm_mapping_dst_free );
+ avl_free( rwm_at.map, rwm_mapping_free );
+
+ ber_memfree( rwmap->rwm_bva_map[ c->valx ].bv_val );
+ for ( cnt = c->valx; !BER_BVISNULL( &rwmap->rwm_bva_map[ cnt ] ); cnt++ ) {
+ rwmap->rwm_bva_map[ cnt ] = rwmap->rwm_bva_map[ cnt + 1 ];
+ }
+ }
+
+ } else {
+ avl_free( rwmap->rwm_oc.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_oc.map, rwm_mapping_free );
+ avl_free( rwmap->rwm_at.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_at.map, rwm_mapping_free );
+
+ rwmap->rwm_oc.remap = NULL;
+ rwmap->rwm_oc.map = NULL;
+ rwmap->rwm_at.remap = NULL;
+ rwmap->rwm_at.map = NULL;
+
+ ber_bvarray_free( rwmap->rwm_bva_map );
+ rwmap->rwm_bva_map = NULL;
+ }
+ break;
+
+ case RWM_CF_NORMALIZE_MAPPED:
+ rwmap->rwm_flags &= ~RWM_F_NORMALIZE_MAPPED_ATTRS;
+ break;
+
+ case RWM_CF_DROP_UNREQUESTED:
+ rwmap->rwm_flags &= ~RWM_F_DROP_UNREQUESTED_ATTRS;
+ break;
+
+ default:
+ return 1;
+ }
+ return rc;
+ }
+
+ if ( strncasecmp( c->argv[ 0 ], "olcRwm", STRLENOF( "olcRwm" ) ) == 0 ) {
+ idx0 = 1;
+ }
+
+ switch ( c->type ) {
+ case RWM_CF_REWRITE:
+ if ( c->valx >= 0 ) {
+ struct rewrite_info *rwm_rw = rwmap->rwm_rw;
+ int i, last;
+
+ for ( last = 0; rwmap->rwm_bva_rewrite && !BER_BVISNULL( &rwmap->rwm_bva_rewrite[ last ] ); last++ )
+ /* count'em */ ;
+
+ if ( c->valx > last ) {
+ c->valx = last;
+ }
+
+ rwmap->rwm_rw = NULL;
+ rc = rwm_info_init( &rwmap->rwm_rw );
+
+ for ( i = 0; i < c->valx; i++ ) {
+ ConfigArgs ca = { 0 };
+
+ ca.line = rwmap->rwm_bva_rewrite[ i ].bv_val;
+ ca.argc = 0;
+ init_config_argv( &ca );
+ config_parse_ldif( &ca );
+
+ argv0 = ca.argv[ 0 ];
+ ca.argv[ 0 ] += STRLENOF( "rwm-" );
+
+ if ( strcasecmp( ca.argv[ 0 ], "suffixmassage" ) == 0 ) {
+ rc = rwm_suffixmassage_config( &db, c->fname, c->lineno,
+ ca.argc, ca.argv );
+
+ } else {
+ rc = rwm_rw_config( &db, c->fname, c->lineno,
+ ca.argc, ca.argv );
+ }
+
+ ca.argv[ 0 ] = argv0;
+
+ ch_free( ca.tline );
+ ch_free( ca.argv );
+
+ assert( rc == 0 );
+ }
+
+ argv0 = c->argv[ idx0 ];
+ if ( strncasecmp( argv0, "rwm-", STRLENOF( "rwm-" ) ) != 0 ) {
+ return 1;
+ }
+ c->argv[ idx0 ] += STRLENOF( "rwm-" );
+ if ( strcasecmp( c->argv[ idx0 ], "suffixmassage" ) == 0 ) {
+ rc = rwm_suffixmassage_config( &db, c->fname, c->lineno,
+ c->argc - idx0, &c->argv[ idx0 ] );
+
+ } else {
+ rc = rwm_rw_config( &db, c->fname, c->lineno,
+ c->argc - idx0, &c->argv[ idx0 ] );
+ }
+ c->argv[ idx0 ] = argv0;
+ if ( rc != 0 ) {
+ rewrite_info_delete( &rwmap->rwm_rw );
+ assert( rwmap->rwm_rw == NULL );
+
+ rwmap->rwm_rw = rwm_rw;
+ return 1;
+ }
+
+ for ( i = c->valx; rwmap->rwm_bva_rewrite && !BER_BVISNULL( &rwmap->rwm_bva_rewrite[ i ] ); i++ )
+ {
+ ConfigArgs ca = { 0 };
+
+ ca.line = rwmap->rwm_bva_rewrite[ i ].bv_val;
+ ca.argc = 0;
+ init_config_argv( &ca );
+ config_parse_ldif( &ca );
+
+ argv0 = ca.argv[ 0 ];
+ ca.argv[ 0 ] += STRLENOF( "rwm-" );
+
+ if ( strcasecmp( ca.argv[ 0 ], "suffixmassage" ) == 0 ) {
+ rc = rwm_suffixmassage_config( &db, c->fname, c->lineno,
+ ca.argc, ca.argv );
+
+ } else {
+ rc = rwm_rw_config( &db, c->fname, c->lineno,
+ ca.argc, ca.argv );
+ }
+
+ ca.argv[ 0 ] = argv0;
+
+ ch_free( ca.tline );
+ ch_free( ca.argv );
+
+ assert( rc == 0 );
+ }
+
+ rwmap->rwm_bva_rewrite = ch_realloc( rwmap->rwm_bva_rewrite,
+ ( last + 2 )*sizeof( struct berval ) );
+ BER_BVZERO( &rwmap->rwm_bva_rewrite[last+1] );
+
+ for ( i = last - 1; i >= c->valx; i-- )
+ {
+ rwmap->rwm_bva_rewrite[ i + 1 ] = rwmap->rwm_bva_rewrite[ i ];
+ }
+
+ rwm_bva_rewrite_add( rwmap, c->valx, &c->argv[ idx0 ] );
+
+ rewrite_info_delete( &rwm_rw );
+ assert( rwm_rw == NULL );
+
+ break;
+ }
+
+ argv0 = c->argv[ idx0 ];
+ if ( strncasecmp( argv0, "rwm-", STRLENOF( "rwm-" ) ) != 0 ) {
+ return 1;
+ }
+ c->argv[ idx0 ] += STRLENOF( "rwm-" );
+ if ( strcasecmp( c->argv[ idx0 ], "suffixmassage" ) == 0 ) {
+ rc = rwm_suffixmassage_config( &db, c->fname, c->lineno,
+ c->argc - idx0, &c->argv[ idx0 ] );
+
+ } else {
+ rc = rwm_rw_config( &db, c->fname, c->lineno,
+ c->argc - idx0, &c->argv[ idx0 ] );
+ }
+ c->argv[ idx0 ] = argv0;
+ if ( rc ) {
+ return 1;
+
+ } else {
+ rwm_bva_rewrite_add( rwmap, -1, &c->argv[ idx0 ] );
+ }
+ break;
+
+ case RWM_CF_T_F_SUPPORT:
+ rc = verb_to_mask( c->argv[ 1 ], t_f_mode );
+ if ( BER_BVISNULL( &t_f_mode[ rc ].word ) ) {
+ return 1;
+ }
+
+ rwmap->rwm_flags &= ~RWM_F_SUPPORT_T_F_MASK2;
+ rwmap->rwm_flags |= t_f_mode[ rc ].mask;
+ rc = 0;
+ break;
+
+ case RWM_CF_MAP:
+ if ( c->valx >= 0 ) {
+ struct ldapmap rwm_oc = rwmap->rwm_oc;
+ struct ldapmap rwm_at = rwmap->rwm_at;
+ char *argv[5];
+ int cnt = 0;
+
+ if ( rwmap->rwm_bva_map ) {
+ for ( ; !BER_BVISNULL( &rwmap->rwm_bva_map[ cnt ] ); cnt++ )
+ /* count */ ;
+ }
+
+ if ( c->valx >= cnt ) {
+ c->valx = cnt;
+ }
+
+ memset( &rwmap->rwm_oc, 0, sizeof( rwmap->rwm_oc ) );
+ memset( &rwmap->rwm_at, 0, sizeof( rwmap->rwm_at ) );
+
+ /* re-parse all mappings, including the one
+ * that needs to be added */
+ argv[0] = "map";
+ for ( cnt = 0; cnt < c->valx; cnt++ ) {
+ ConfigArgs ca = { 0 };
+
+ ca.line = rwmap->rwm_bva_map[ cnt ].bv_val;
+ ca.argc = 0;
+ init_config_argv( &ca );
+ config_parse_ldif( &ca );
+
+ argv[1] = ca.argv[0];
+ argv[2] = ca.argv[1];
+ argv[3] = ca.argv[2];
+ argv[4] = ca.argv[3];
+
+ rc = rwm_m_config( &db, c->fname, c->lineno, ca.argc + 1, argv );
+
+ ch_free( ca.tline );
+ ch_free( ca.argv );
+
+ /* in case of failure, restore
+ * the existing mapping */
+ if ( rc ) {
+ goto rwmmap_fail;
+ }
+ }
+
+ argv0 = c->argv[0];
+ c->argv[0] = "map";
+ rc = rwm_m_config( &db, c->fname, c->lineno, c->argc, c->argv );
+ c->argv[0] = argv0;
+ if ( rc ) {
+ goto rwmmap_fail;
+ }
+
+ if ( rwmap->rwm_bva_map ) {
+ for ( ; !BER_BVISNULL( &rwmap->rwm_bva_map[ cnt ] ); cnt++ ) {
+ ConfigArgs ca = { 0 };
+
+ ca.line = rwmap->rwm_bva_map[ cnt ].bv_val;
+ ca.argc = 0;
+ init_config_argv( &ca );
+ config_parse_ldif( &ca );
+
+ argv[1] = ca.argv[0];
+ argv[2] = ca.argv[1];
+ argv[3] = ca.argv[2];
+ argv[4] = ca.argv[3];
+
+ rc = rwm_m_config( &db, c->fname, c->lineno, ca.argc + 1, argv );
+
+ ch_free( ca.tline );
+ ch_free( ca.argv );
+
+ /* in case of failure, restore
+ * the existing mapping */
+ if ( rc ) {
+ goto rwmmap_fail;
+ }
+ }
+ }
+
+ /* in case of success, destroy the old mapping
+ * and add the new one */
+ if ( rc == 0 ) {
+ BerVarray tmp;
+ struct berval bv, *bvp = &bv;
+
+ if ( rwm_bva_add( &bvp, 0, &c->argv[ idx0 ] ) ) {
+ rc = 1;
+ goto rwmmap_fail;
+ }
+
+ tmp = ber_memrealloc( rwmap->rwm_bva_map,
+ sizeof( struct berval )*( cnt + 2 ) );
+ if ( tmp == NULL ) {
+ ber_memfree( bv.bv_val );
+ rc = 1;
+ goto rwmmap_fail;
+ }
+ rwmap->rwm_bva_map = tmp;
+ BER_BVZERO( &rwmap->rwm_bva_map[ cnt + 1 ] );
+
+ avl_free( rwm_oc.remap, rwm_mapping_dst_free );
+ avl_free( rwm_oc.map, rwm_mapping_free );
+ avl_free( rwm_at.remap, rwm_mapping_dst_free );
+ avl_free( rwm_at.map, rwm_mapping_free );
+
+ for ( ; cnt-- > c->valx; ) {
+ rwmap->rwm_bva_map[ cnt + 1 ] = rwmap->rwm_bva_map[ cnt ];
+ }
+ rwmap->rwm_bva_map[ c->valx ] = bv;
+
+ } else {
+rwmmap_fail:;
+ avl_free( rwmap->rwm_oc.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_oc.map, rwm_mapping_free );
+ avl_free( rwmap->rwm_at.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_at.map, rwm_mapping_free );
+ rwmap->rwm_oc = rwm_oc;
+ rwmap->rwm_at = rwm_at;
+ }
+
+ break;
+ }
+
+ argv0 = c->argv[ 0 ];
+ c->argv[ 0 ] += STRLENOF( "rwm-" );
+ rc = rwm_m_config( &db, c->fname, c->lineno, c->argc, c->argv );
+ c->argv[ 0 ] = argv0;
+ if ( rc ) {
+ return 1;
+
+ } else {
+ char *line;
+ struct berval bv;
+
+ line = ldap_charray2str( &c->argv[ 1 ], " " );
+ if ( line != NULL ) {
+ ber_str2bv( line, 0, 0, &bv );
+ ber_bvarray_add( &rwmap->rwm_bva_map, &bv );
+ }
+ }
+ break;
+
+ case RWM_CF_NORMALIZE_MAPPED:
+ if ( c->value_int ) {
+ rwmap->rwm_flags |= RWM_F_NORMALIZE_MAPPED_ATTRS;
+ } else {
+ rwmap->rwm_flags &= ~RWM_F_NORMALIZE_MAPPED_ATTRS;
+ }
+ break;
+
+ case RWM_CF_DROP_UNREQUESTED:
+ if ( c->value_int ) {
+ rwmap->rwm_flags |= RWM_F_DROP_UNREQUESTED_ATTRS;
+ } else {
+ rwmap->rwm_flags &= ~RWM_F_DROP_UNREQUESTED_ATTRS;
+ }
+ break;
+
+ default:
+ assert( 0 );
+ return 1;
+ }
+
+ return rc;
+}
+
+static int
+rwm_db_init(
+ BackendDB *be,
+ ConfigReply *cr )
+{
+ slap_overinst *on = (slap_overinst *) be->bd_info;
+ struct ldaprwmap *rwmap;
+ int rc = 0;
+
+ rwmap = (struct ldaprwmap *)ch_calloc( 1, sizeof( struct ldaprwmap ) );
+
+ /* default */
+ rwmap->rwm_flags = RWM_F_DROP_UNREQUESTED_ATTRS;
+
+ rc = rwm_info_init( &rwmap->rwm_rw );
+
+ on->on_bi.bi_private = (void *)rwmap;
+
+ if ( rc ) {
+ (void)rwm_db_destroy( be, NULL );
+ }
+
+ return rc;
+}
+
+static int
+rwm_db_destroy(
+ BackendDB *be,
+ ConfigReply *cr )
+{
+ 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;
+
+ if ( rwmap->rwm_rw ) {
+ rewrite_info_delete( &rwmap->rwm_rw );
+ if ( rwmap->rwm_bva_rewrite )
+ ber_bvarray_free( rwmap->rwm_bva_rewrite );
+ }
+
+ avl_free( rwmap->rwm_oc.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_oc.map, rwm_mapping_free );
+ avl_free( rwmap->rwm_at.remap, rwm_mapping_dst_free );
+ avl_free( rwmap->rwm_at.map, rwm_mapping_free );
+ ber_bvarray_free( rwmap->rwm_bva_map );
+
+ ch_free( rwmap );
+ }
+
+ return rc;
+}
+
+static slap_overinst rwm = { { NULL } };
+
+#if SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC
+static
+#endif /* SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC */
+int
+rwm_initialize( void )
+{
+ int rc;
+
+ /* Make sure we don't exceed the bits reserved for userland */
+ config_check_userland( RWM_CF_LAST );
+
+ memset( &rwm, 0, sizeof( slap_overinst ) );
+
+ rwm.on_bi.bi_type = "rwm";
+ rwm.on_bi.bi_flags =
+ SLAPO_BFLAG_SINGLE |
+ 0;
+
+ rwm.on_bi.bi_db_init = rwm_db_init;
+ rwm.on_bi.bi_db_config = rwm_db_config;
+ rwm.on_bi.bi_db_destroy = rwm_db_destroy;
+
+ rwm.on_bi.bi_op_bind = rwm_op_bind;
+ rwm.on_bi.bi_op_search = rwm_op_search;
+ rwm.on_bi.bi_op_compare = rwm_op_compare;
+ rwm.on_bi.bi_op_modify = rwm_op_modify;
+ rwm.on_bi.bi_op_modrdn = rwm_op_modrdn;
+ rwm.on_bi.bi_op_add = rwm_op_add;
+ rwm.on_bi.bi_op_delete = rwm_op_delete;
+ rwm.on_bi.bi_op_unbind = rwm_op_unbind;
+ rwm.on_bi.bi_extended = rwm_extended;
+#if 1 /* TODO */
+ rwm.on_bi.bi_entry_release_rw = rwm_entry_release_rw;
+ rwm.on_bi.bi_entry_get_rw = rwm_entry_get_rw;
+#endif
+
+ rwm.on_bi.bi_operational = rwm_operational;
+ rwm.on_bi.bi_chk_referrals = 0 /* rwm_chk_referrals */ ;
+
+ rwm.on_bi.bi_connection_init = rwm_conn_init;
+ rwm.on_bi.bi_connection_destroy = rwm_conn_destroy;
+
+ rwm.on_response = rwm_response;
+
+ rwm.on_bi.bi_cf_ocs = rwmocs;
+
+ rc = config_register_schema( rwmcfg, rwmocs );
+ if ( rc ) {
+ return rc;
+ }
+
+ return overlay_register( &rwm );
+}
+
+#if SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC
+int
+init_module( int argc, char *argv[] )
+{
+ return rwm_initialize();
+}
+#endif /* SLAPD_OVER_RWM == SLAPD_MOD_DYNAMIC */
+
+#endif /* SLAPD_OVER_RWM */