/** BEGIN COPYRIGHT BLOCK * This Program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation; version 2 of the License. * * This Program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * this Program; if not, write to the Free Software Foundation, Inc., 59 Temple * Place, Suite 330, Boston, MA 02111-1307 USA. * * In addition, as a special exception, Red Hat, Inc. gives You the additional * right to link the code of this Program with code not covered under the GNU * General Public License ("Non-GPL Code") and to distribute linked combinations * including the two, subject to the limitations in this paragraph. Non-GPL Code * permitted under this exception must only link to the code of this Program * through those well defined interfaces identified in the file named EXCEPTION * found in the source code files (the "Approved Interfaces"). The files of * Non-GPL Code may instantiate templates or use macros or inline functions from * the Approved Interfaces without causing the resulting work to be covered by * the GNU General Public License. Only Red Hat, Inc. may make changes or * additions to the list of Approved Interfaces. You must obey the GNU General * Public License in all respects for all of the Program code and other code used * in conjunction with the Program except the Non-GPL Code covered by this * exception. If you modify this file, you may extend this exception to your * version of the file, but you are not obligated to do so. If you do not wish to * provide this exception without modification, you must delete this exception * statement from your version and license this file solely under the GPL without * exception. * * * Copyright (C) 2001 Sun Microsystems, Inc. Used by permission. * Copyright (C) 2005 Red Hat, Inc. * All rights reserved. * END COPYRIGHT BLOCK **/ #ifdef HAVE_CONFIG_H # include #endif /* * defbackend.c - implement a "backend of last resort" which is used only * when a request's basedn does not match one of the suffixes of any of the * configured backends. * */ #include "slap.h" /* * ---------------- Macros --------------------------------------------------- */ #define DEFBACKEND_TYPE "default" #define DEFBACKEND_OP_NOT_HANDLED 0 #define DEFBACKEND_OP_HANDLED 1 /* * ---------------- Static Variables ----------------------------------------- */ static struct slapdplugin defbackend_plugin; static Slapi_Backend *defbackend_backend = NULL; /* * ---------------- Prototypes for Private Functions ------------------------- */ static int defbackend_default( Slapi_PBlock *pb ); static int defbackend_noop( Slapi_PBlock *pb ); static int defbackend_abandon( Slapi_PBlock *pb ); static int defbackend_bind( Slapi_PBlock *pb ); static int defbackend_next_search_entry( Slapi_PBlock *pb ); /* * ---------------- Public Functions ----------------------------------------- */ /* * defbackend_init: instantiate the default backend */ void defbackend_init( void ) { int rc; char *errmsg; Slapi_PBlock pb; LDAPDebug( LDAP_DEBUG_TRACE, "defbackend_init\n", 0, 0, 0 ); /* * create a new backend */ pblock_init( &pb ); defbackend_backend = slapi_be_new( DEFBACKEND_TYPE , DEFBACKEND_TYPE, 1 /* Private */, 0 /* Do Not Log Changes */ ); if (( rc = slapi_pblock_set( &pb, SLAPI_BACKEND, defbackend_backend )) != 0 ) { errmsg = "slapi_pblock_set SLAPI_BACKEND failed"; goto cleanup_and_return; } /* * create a plugin structure for this backend since the * slapi_pblock_set()/slapi_pblock_get() functions assume there is one. */ memset( &defbackend_plugin, '\0', sizeof( struct slapdplugin )); defbackend_plugin.plg_type = SLAPI_PLUGIN_DATABASE; defbackend_backend->be_database = &defbackend_plugin; if (( rc = slapi_pblock_set( &pb, SLAPI_PLUGIN, &defbackend_plugin )) != 0 ) { errmsg = "slapi_pblock_set SLAPI_PLUGIN failed"; goto cleanup_and_return; } /* default backend is managed as if it would */ /* contain remote data. */ slapi_be_set_flag(defbackend_backend,SLAPI_BE_FLAG_REMOTE_DATA); /* * install handler functions, etc. */ errmsg = "slapi_pblock_set handlers failed"; rc = slapi_pblock_set( &pb, SLAPI_PLUGIN_VERSION, (void *)SLAPI_PLUGIN_CURRENT_VERSION ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_BIND_FN, (void *)defbackend_bind ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_UNBIND_FN, (void *)defbackend_noop ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_SEARCH_FN, (void *)defbackend_default ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_NEXT_SEARCH_ENTRY_FN, (void *)defbackend_next_search_entry ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_COMPARE_FN, (void *)defbackend_default ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_MODIFY_FN, (void *)defbackend_default ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_MODRDN_FN, (void *)defbackend_default ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_ADD_FN, (void *)defbackend_default ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_DELETE_FN, (void *)defbackend_default ); rc |= slapi_pblock_set( &pb, SLAPI_PLUGIN_DB_ABANDON_FN, (void *)defbackend_abandon ); cleanup_and_return: if ( rc != 0 ) { LDAPDebug( LDAP_DEBUG_ANY, "defbackend_init: failed (%s)\n", errmsg, 0, 0 ); exit( 1 ); } } /* * defbackend_get_backend: return a pointer to the default backend. * we never return NULL. */ Slapi_Backend * defbackend_get_backend( void ) { return( defbackend_backend ); } /* * ---------------- Private Functions ---------------------------------------- */ static int defbackend_default( Slapi_PBlock *pb ) { LDAPDebug( LDAP_DEBUG_TRACE, "defbackend_default\n", 0, 0, 0 ); send_nobackend_ldap_result( pb ); return( DEFBACKEND_OP_HANDLED ); } static int defbackend_noop( Slapi_PBlock *pb ) { LDAPDebug( LDAP_DEBUG_TRACE, "defbackend_noop\n", 0, 0, 0 ); return( DEFBACKEND_OP_HANDLED ); } static int defbackend_abandon( Slapi_PBlock *pb ) { LDAPDebug( LDAP_DEBUG_TRACE, "defbackend_abandon\n", 0, 0, 0 ); /* nothing to do */ return( DEFBACKEND_OP_HANDLED ); } static int defbackend_bind( Slapi_PBlock *pb ) { int rc, method; struct berval *cred; LDAPDebug( LDAP_DEBUG_TRACE, "defbackend_bind\n", 0, 0, 0 ); /* * Accept simple binds that do not contain passwords (but do not * update the bind DN field in the connection structure since we don't * grant access based on these "NULL binds") */ slapi_pblock_get( pb, SLAPI_BIND_METHOD, &method ); slapi_pblock_get( pb, SLAPI_BIND_CREDENTIALS, &cred ); if ( method == LDAP_AUTH_SIMPLE && cred->bv_len == 0 ) { slapi_counter_increment(g_get_global_snmp_vars()->ops_tbl.dsAnonymousBinds); rc = SLAPI_BIND_ANONYMOUS; } else { send_nobackend_ldap_result( pb ); rc = SLAPI_BIND_FAIL; } return( rc ); } static int defbackend_next_search_entry( Slapi_PBlock *pb ) { LDAPDebug( LDAP_DEBUG_TRACE, "defbackend_next_search_entry\n", 0, 0, 0 ); return( 0 ); /* no entries and no error */ }