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openldap/servers/slapd/overlays/rwm.c

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/* rwm.c - rewrite/remap operations */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2003-2020 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 );
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 );
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 );
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 );
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 );
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' "
"EQUALITY caseIgnoreMatch "
"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' "
"EQUALITY booleanMatch "
"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' "
"EQUALITY booleanMatch "
"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 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 {
rc = slap_bv_x_ordered_unparse( rwmap->rwm_bva_rewrite, &c->rvalue_vals );
}
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 */
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