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/* null.c - the null backend */
/* $OpenLDAP: pkg/ldap/servers/slapd/back-null/null.c,v 1.12.2.4 2006/01/03 22:16:21 kurt Exp $ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2002-2006 The OpenLDAP Foundation.
* 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>.
*/
/* ACKNOWLEDGEMENTS:
* This work was originally developed by Hallvard Furuseth for inclusion
* in OpenLDAP Software.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "slap.h"
struct null_info {
int ni_bind_allowed;
ID ni_nextid;
};
/* LDAP operations */
static int
null_back_bind( Operation *op, SlapReply *rs )
{
struct null_info *ni = (struct null_info *) op->o_bd->be_private;
if ( ni->ni_bind_allowed ) {
/* front end will send result on success (0) */
return LDAP_SUCCESS;
}
rs->sr_err = LDAP_INVALID_CREDENTIALS;
send_ldap_result( op, rs );
return rs->sr_err;
}
/* add, delete, modify, modrdn, search */
static int
null_back_success( Operation *op, SlapReply *rs )
{
rs->sr_err = LDAP_SUCCESS;
send_ldap_result( op, rs );
return 0;
}
/* compare */
static int
null_back_false( Operation *op, SlapReply *rs )
{
rs->sr_err = LDAP_COMPARE_FALSE;
send_ldap_result( op, rs );
return 0;
}
/* Slap tools */
static int
null_tool_entry_open( BackendDB *be, int mode )
{
return 0;
}
static int
null_tool_entry_close( BackendDB *be )
{
assert( be != NULL );
return 0;
}
static ID
null_tool_entry_next( BackendDB *be )
{
return NOID;
}
static Entry *
null_tool_entry_get( BackendDB *be, ID id )
{
assert( slapMode & SLAP_TOOL_MODE );
return NULL;
}
static ID
null_tool_entry_put( BackendDB *be, Entry *e, struct berval *text )
{
assert( slapMode & SLAP_TOOL_MODE );
assert( text != NULL );
assert( text->bv_val != NULL );
assert( text->bv_val[0] == '\0' ); /* overconservative? */
e->e_id = ((struct null_info *) be->be_private)->ni_nextid++;
return e->e_id;
}
/* Setup */
static int
null_back_db_config(
BackendDB *be,
const char *fname,
int lineno,
int argc,
char **argv )
{
struct null_info *ni = (struct null_info *) be->be_private;
if ( ni == NULL ) {
fprintf( stderr, "%s: line %d: null database info is null!\n",
fname, lineno );
return 1;
}
/* bind requests allowed */
if ( strcasecmp( argv[0], "bind" ) == 0 ) {
if ( argc < 2 ) {
fprintf( stderr,
"%s: line %d: missing <on/off> in \"bind <on/off>\" line\n",
fname, lineno );
return 1;
}
ni->ni_bind_allowed = strcasecmp( argv[1], "off" );
/* anything else */
} else {
return SLAP_CONF_UNKNOWN;
}
return 0;
}
static int
null_back_db_init( BackendDB *be )
{
struct null_info *ni = ch_calloc( 1, sizeof(struct null_info) );
ni->ni_bind_allowed = 0;
ni->ni_nextid = 1;
be->be_private = ni;
return 0;
}
static int
null_back_db_destroy( Backend *be )
{
free( be->be_private );
return 0;
}
int
null_back_initialize( BackendInfo *bi )
{
bi->bi_open = 0;
bi->bi_close = 0;
bi->bi_config = 0;
bi->bi_destroy = 0;
bi->bi_db_init = null_back_db_init;
bi->bi_db_config = null_back_db_config;
bi->bi_db_open = 0;
bi->bi_db_close = 0;
bi->bi_db_destroy = null_back_db_destroy;
bi->bi_op_bind = null_back_bind;
bi->bi_op_unbind = 0;
bi->bi_op_search = null_back_success;
bi->bi_op_compare = null_back_false;
bi->bi_op_modify = null_back_success;
bi->bi_op_modrdn = null_back_success;
bi->bi_op_add = null_back_success;
bi->bi_op_delete = null_back_success;
bi->bi_op_abandon = 0;
bi->bi_extended = 0;
bi->bi_chk_referrals = 0;
bi->bi_connection_init = 0;
bi->bi_connection_destroy = 0;
bi->bi_tool_entry_open = null_tool_entry_open;
bi->bi_tool_entry_close = null_tool_entry_close;
bi->bi_tool_entry_first = null_tool_entry_next;
bi->bi_tool_entry_next = null_tool_entry_next;
bi->bi_tool_entry_get = null_tool_entry_get;
bi->bi_tool_entry_put = null_tool_entry_put;
return 0;
}
#if SLAPD_NULL == SLAPD_MOD_DYNAMIC
/* conditionally define the init_module() function */
SLAP_BACKEND_INIT_MODULE( null )
#endif /* SLAPD_NULL == SLAPD_MOD_DYNAMIC */
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