/*
* meta_back_single_bind
*
* attempts to perform a bind with creds
*/
static int
meta_back_single_bind(
Operation *op,
SlapReply *rs,
metaconn_t *mc,
int candidate )
{
metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
metatarget_t *mt = mi->mi_targets[ candidate ];
struct berval mdn = BER_BVNULL;
metasingleconn_t *msc = &mc->mc_conns[ candidate ];
int msgid;
dncookie dc;
struct berval save_o_dn;
int save_o_do_not_cache;
LDAPControl **ctrls = NULL;
if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) {
ch_free( msc->msc_bound_ndn.bv_val );
BER_BVZERO( &msc->msc_bound_ndn );
}
if ( !BER_BVISNULL( &msc->msc_cred ) ) {
/* destroy sensitive data */
memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len );
ch_free( msc->msc_cred.bv_val );
BER_BVZERO( &msc->msc_cred );
}
/*
* Rewrite the bind dn if needed
*/
dc.target = mt;
dc.conn = op->o_conn;
dc.rs = rs;
dc.ctx = "bindDN";
if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
rs->sr_text = "DN rewrite error";
rs->sr_err = LDAP_OTHER;
return rs->sr_err;
}
/* don't add proxyAuthz; set the bindDN */
save_o_dn = op->o_dn;
save_o_do_not_cache = op->o_do_not_cache;
op->o_do_not_cache = 1;
op->o_dn = op->o_req_dn;
ctrls = op->o_ctrls;
rs->sr_err = meta_back_controls_add( op, rs, mc, candidate, &ctrls );
op->o_dn = save_o_dn;
op->o_do_not_cache = save_o_do_not_cache;
if ( rs->sr_err != LDAP_SUCCESS ) {
goto return_results;
}
/* FIXME: this fixes the bind problem right now; we need
* to use the asynchronous version to get the "matched"
* and more in case of failure ... */
/* FIXME: should we check if at least some of the op->o_ctrls
* can/should be passed? */
for (;;) {
rs->sr_err = ldap_sasl_bind( msc->msc_ld, mdn.bv_val,
LDAP_SASL_SIMPLE, &op->orb_cred,
ctrls, NULL, &msgid );
if ( rs->sr_err != LDAP_X_CONNECTING ) {
break;
}
ldap_pvt_thread_yield();
}
mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
meta_back_bind_op_result( op, rs, mc, candidate, msgid, LDAP_BACK_DONTSEND, 1 );
if ( rs->sr_err != LDAP_SUCCESS ) {
goto return_results;
}
/* If defined, proxyAuthz will be used also when
* back-ldap is the authorizing backend; for this
* purpose, a successful bind is followed by a
* bind with the configured identity assertion */
/* NOTE: use with care */
if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
meta_back_proxy_authz_bind( mc, candidate, op, rs, LDAP_BACK_SENDERR, 1 );
if ( !LDAP_BACK_CONN_ISBOUND( msc ) ) {
goto return_results;
}
goto cache_refresh;
}
ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_ndn );
LDAP_BACK_CONN_ISBOUND_SET( msc );
mc->mc_authz_target = candidate;
if ( META_BACK_TGT_SAVECRED( mt ) ) {
if ( !BER_BVISNULL( &msc->msc_cred ) ) {
memset( msc->msc_cred.bv_val, 0,
msc->msc_cred.bv_len );
}
ber_bvreplace( &msc->msc_cred, &op->orb_cred );
ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc );
}
cache_refresh:;
if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED
&& !BER_BVISEMPTY( &op->o_req_ndn ) )
{
( void )meta_dncache_update_entry( &mi->mi_cache,
&op->o_req_ndn, candidate );
}
return_results:;
if ( mdn.bv_val != op->o_req_dn.bv_val ) {
free( mdn.bv_val );
}
if ( META_BACK_TGT_QUARANTINE( mt ) ) {
meta_back_quarantine( op, rs, candidate );
}
return rs->sr_err;
}
int
meta_back_add( Operation *op, SlapReply *rs )
{
metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
metatarget_t *mt;
metaconn_t *mc;
int i, candidate = -1;
int isupdate;
Attribute *a;
LDAPMod **attrs;
struct berval mdn = BER_BVNULL, mapped;
dncookie dc;
int msgid;
ldap_back_send_t retrying = LDAP_BACK_RETRYING;
LDAPControl **ctrls = NULL;
Debug(LDAP_DEBUG_ARGS, "==> meta_back_add: %s\n",
op->o_req_dn.bv_val, 0, 0 );
/*
* get the current connection
*/
mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
return rs->sr_err;
}
assert( mc->mc_conns[ candidate ].msc_ld != NULL );
/*
* Rewrite the add dn, if needed
*/
mt = mi->mi_targets[ candidate ];
dc.target = mt;
dc.conn = op->o_conn;
dc.rs = rs;
dc.ctx = "addDN";
if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
send_ldap_result( op, rs );
goto done;
}
/* Count number of attributes in entry ( +1 ) */
for ( i = 1, a = op->ora_e->e_attrs; a; i++, a = a->a_next );
/* Create array of LDAPMods for ldap_add() */
attrs = ch_malloc( sizeof( LDAPMod * )*i );
dc.ctx = "addAttrDN";
isupdate = be_shadow_update( op );
for ( i = 0, a = op->ora_e->e_attrs; a; a = a->a_next ) {
int j, is_oc = 0;
if ( !isupdate && !get_relax( op ) && a->a_desc->ad_type->sat_no_user_mod )
{
continue;
}
if ( a->a_desc == slap_schema.si_ad_objectClass
|| a->a_desc == slap_schema.si_ad_structuralObjectClass )
{
is_oc = 1;
mapped = a->a_desc->ad_cname;
} else {
ldap_back_map( &mt->mt_rwmap.rwm_at,
&a->a_desc->ad_cname, &mapped, BACKLDAP_MAP );
if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
continue;
}
}
attrs[ i ] = ch_malloc( sizeof( LDAPMod ) );
if ( attrs[ i ] == NULL ) {
continue;
}
attrs[ i ]->mod_op = LDAP_MOD_BVALUES;
attrs[ i ]->mod_type = mapped.bv_val;
if ( is_oc ) {
for ( j = 0; !BER_BVISNULL( &a->a_vals[ j ] ); j++ )
;
attrs[ i ]->mod_bvalues =
(struct berval **)ch_malloc( ( j + 1 ) *
sizeof( struct berval * ) );
for ( j = 0; !BER_BVISNULL( &a->a_vals[ j ] ); ) {
struct ldapmapping *mapping;
ldap_back_mapping( &mt->mt_rwmap.rwm_oc,
&a->a_vals[ j ], &mapping, BACKLDAP_MAP );
if ( mapping == NULL ) {
if ( mt->mt_rwmap.rwm_oc.drop_missing ) {
continue;
}
attrs[ i ]->mod_bvalues[ j ] = &a->a_vals[ j ];
} else {
attrs[ i ]->mod_bvalues[ j ] = &mapping->dst;
}
j++;
}
attrs[ i ]->mod_bvalues[ j ] = NULL;
} else {
/*
* FIXME: dn-valued attrs should be rewritten
* to allow their use in ACLs at the back-ldap
* level.
*/
if ( a->a_desc->ad_type->sat_syntax ==
slap_schema.si_syn_distinguishedName )
{
(void)ldap_dnattr_rewrite( &dc, a->a_vals );
if ( a->a_vals == NULL ) {
continue;
}
}
for ( j = 0; !BER_BVISNULL( &a->a_vals[ j ] ); j++ )
;
attrs[ i ]->mod_bvalues = ch_malloc( ( j + 1 ) * sizeof( struct berval * ) );
for ( j = 0; !BER_BVISNULL( &a->a_vals[ j ] ); j++ ) {
attrs[ i ]->mod_bvalues[ j ] = &a->a_vals[ j ];
}
attrs[ i ]->mod_bvalues[ j ] = NULL;
}
i++;
}
attrs[ i ] = NULL;
retry:;
ctrls = op->o_ctrls;
if ( meta_back_controls_add( op, rs, mc, candidate, &ctrls ) != LDAP_SUCCESS )
{
send_ldap_result( op, rs );
goto cleanup;
}
rs->sr_err = ldap_add_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
attrs, ctrls, NULL, &msgid );
rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
mt->mt_timeout[ SLAP_OP_ADD ], ( LDAP_BACK_SENDRESULT | retrying ) );
if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
retrying &= ~LDAP_BACK_RETRYING;
if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) {
/* if the identity changed, there might be need to re-authz */
(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
goto retry;
}
}
cleanup:;
(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
for ( --i; i >= 0; --i ) {
free( attrs[ i ]->mod_bvalues );
free( attrs[ i ] );
}
free( attrs );
if ( mdn.bv_val != op->ora_e->e_dn ) {
free( mdn.bv_val );
BER_BVZERO( &mdn );
}
done:;
if ( mc ) {
meta_back_release_conn( mi, mc );
}
return rs->sr_err;
}
int
meta_back_modify( Operation *op, SlapReply *rs )
{
metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
metatarget_t *mt;
metaconn_t *mc;
int rc = 0;
LDAPMod **modv = NULL;
LDAPMod *mods = NULL;
Modifications *ml;
int candidate = -1, i;
int isupdate;
struct berval mdn = BER_BVNULL;
struct berval mapped;
dncookie dc;
int msgid;
ldap_back_send_t retrying = LDAP_BACK_RETRYING;
LDAPControl **ctrls = NULL;
mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
return rs->sr_err;
}
assert( mc->mc_conns[ candidate ].msc_ld != NULL );
/*
* Rewrite the modify dn, if needed
*/
mt = mi->mi_targets[ candidate ];
dc.target = mt;
dc.conn = op->o_conn;
dc.rs = rs;
dc.ctx = "modifyDN";
if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
send_ldap_result( op, rs );
goto cleanup;
}
for ( i = 0, ml = op->orm_modlist; ml; i++ ,ml = ml->sml_next )
;
mods = ch_malloc( sizeof( LDAPMod )*i );
if ( mods == NULL ) {
rs->sr_err = LDAP_OTHER;
send_ldap_result( op, rs );
goto cleanup;
}
modv = ( LDAPMod ** )ch_malloc( ( i + 1 )*sizeof( LDAPMod * ) );
if ( modv == NULL ) {
rs->sr_err = LDAP_OTHER;
send_ldap_result( op, rs );
goto cleanup;
}
dc.ctx = "modifyAttrDN";
isupdate = be_shadow_update( op );
for ( i = 0, ml = op->orm_modlist; ml; ml = ml->sml_next ) {
int j, is_oc = 0;
if ( !isupdate && !get_relax( op ) && ml->sml_desc->ad_type->sat_no_user_mod )
{
continue;
}
if ( ml->sml_desc == slap_schema.si_ad_objectClass
|| ml->sml_desc == slap_schema.si_ad_structuralObjectClass )
{
is_oc = 1;
mapped = ml->sml_desc->ad_cname;
} else {
ldap_back_map( &mt->mt_rwmap.rwm_at,
&ml->sml_desc->ad_cname, &mapped,
BACKLDAP_MAP );
if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) {
continue;
}
}
modv[ i ] = &mods[ i ];
mods[ i ].mod_op = ml->sml_op | LDAP_MOD_BVALUES;
mods[ i ].mod_type = mapped.bv_val;
/*
* FIXME: dn-valued attrs should be rewritten
* to allow their use in ACLs at the back-ldap
* level.
*/
if ( ml->sml_values != NULL ) {
if ( is_oc ) {
for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
;
mods[ i ].mod_bvalues =
(struct berval **)ch_malloc( ( j + 1 ) *
sizeof( struct berval * ) );
for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); ) {
struct ldapmapping *mapping;
ldap_back_mapping( &mt->mt_rwmap.rwm_oc,
&ml->sml_values[ j ], &mapping, BACKLDAP_MAP );
if ( mapping == NULL ) {
if ( mt->mt_rwmap.rwm_oc.drop_missing ) {
continue;
}
mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
} else {
mods[ i ].mod_bvalues[ j ] = &mapping->dst;
}
j++;
}
mods[ i ].mod_bvalues[ j ] = NULL;
} else {
if ( ml->sml_desc->ad_type->sat_syntax ==
slap_schema.si_syn_distinguishedName )
{
( void )ldap_dnattr_rewrite( &dc, ml->sml_values );
if ( ml->sml_values == NULL ) {
continue;
}
}
for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
;
mods[ i ].mod_bvalues =
(struct berval **)ch_malloc( ( j + 1 ) *
sizeof( struct berval * ) );
for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) {
mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ];
}
mods[ i ].mod_bvalues[ j ] = NULL;
}
} else {
mods[ i ].mod_bvalues = NULL;
}
i++;
}
modv[ i ] = 0;
retry:;
ctrls = op->o_ctrls;
rc = meta_back_controls_add( op, rs, mc, candidate, &ctrls );
if ( rc != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto cleanup;
}
rs->sr_err = ldap_modify_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
modv, ctrls, NULL, &msgid );
rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
mt->mt_timeout[ SLAP_OP_MODIFY ], ( LDAP_BACK_SENDRESULT | retrying ) );
if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
retrying &= ~LDAP_BACK_RETRYING;
if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) {
/* if the identity changed, there might be need to re-authz */
(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
goto retry;
}
}
cleanup:;
(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
if ( mdn.bv_val != op->o_req_dn.bv_val ) {
free( mdn.bv_val );
BER_BVZERO( &mdn );
}
if ( modv != NULL ) {
for ( i = 0; modv[ i ]; i++ ) {
free( modv[ i ]->mod_bvalues );
}
}
free( mods );
free( modv );
if ( mc ) {
meta_back_release_conn( mi, mc );
}
return rs->sr_err;
}
int
meta_back_compare( Operation *op, SlapReply *rs )
{
metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
metatarget_t *mt;
metaconn_t *mc;
int rc = 0;
int candidate = -1;
struct berval mdn = BER_BVNULL;
dncookie dc;
struct berval mapped_attr = op->orc_ava->aa_desc->ad_cname;
struct berval mapped_value = op->orc_ava->aa_value;
int msgid;
ldap_back_send_t retrying = LDAP_BACK_RETRYING;
LDAPControl **ctrls = NULL;
mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR );
if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) {
return rs->sr_err;
}
assert( mc->mc_conns[ candidate ].msc_ld != NULL );
/*
* Rewrite the modify dn, if needed
*/
mt = mi->mi_targets[ candidate ];
dc.target = mt;
dc.conn = op->o_conn;
dc.rs = rs;
dc.ctx = "compareDN";
switch ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
case LDAP_UNWILLING_TO_PERFORM:
rc = 1;
goto cleanup;
default:
break;
}
/*
* if attr is objectClass, try to remap the value
*/
if ( op->orc_ava->aa_desc == slap_schema.si_ad_objectClass ) {
ldap_back_map( &mt->mt_rwmap.rwm_oc,
&op->orc_ava->aa_value,
&mapped_value, BACKLDAP_MAP );
if ( BER_BVISNULL( &mapped_value ) || BER_BVISEMPTY( &mapped_value ) ) {
goto cleanup;
}
/*
* else try to remap the attribute
*/
} else {
ldap_back_map( &mt->mt_rwmap.rwm_at,
&op->orc_ava->aa_desc->ad_cname,
&mapped_attr, BACKLDAP_MAP );
if ( BER_BVISNULL( &mapped_attr ) || BER_BVISEMPTY( &mapped_attr ) ) {
goto cleanup;
}
if ( op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName )
{
dc.ctx = "compareAttrDN";
switch ( ldap_back_dn_massage( &dc, &op->orc_ava->aa_value, &mapped_value ) )
{
case LDAP_UNWILLING_TO_PERFORM:
rc = 1;
goto cleanup;
default:
break;
}
}
}
retry:;
ctrls = op->o_ctrls;
rc = meta_back_controls_add( op, rs, mc, candidate, &ctrls );
if ( rc != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto cleanup;
}
rs->sr_err = ldap_compare_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val,
mapped_attr.bv_val, &mapped_value,
ctrls, NULL, &msgid );
rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid,
mt->mt_timeout[ SLAP_OP_COMPARE ], ( LDAP_BACK_SENDRESULT | retrying ) );
if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
retrying &= ~LDAP_BACK_RETRYING;
if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) {
/* if the identity changed, there might be need to re-authz */
(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
goto retry;
}
}
cleanup:;
(void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
if ( mdn.bv_val != op->o_req_dn.bv_val ) {
free( mdn.bv_val );
}
if ( op->orc_ava->aa_value.bv_val != mapped_value.bv_val ) {
free( mapped_value.bv_val );
}
if ( mc ) {
meta_back_release_conn( mi, mc );
}
return rs->sr_err;
}