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/*
Unix SMB / CIFS implementation .
Main SMB server routines
Copyright ( C ) Andrew Tridgell 1992 - 1998
Copyright ( C ) Martin Pool 2002
Copyright ( C ) Jelmer Vernooij 2002 - 2003
Copyright ( C ) Volker Lendecke 1993 - 2007
Copyright ( C ) Jeremy Allison 1993 - 2007
Copyright ( C ) Andrew Bartlett 2010
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 ; either version 3 of the License , or
( at your option ) any later version .
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 , see < http : //www.gnu.org/licenses/>.
*/
# include "includes.h"
# include "smbd/globals.h"
# include "librpc/gen_ndr/messaging.h"
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# include "../librpc/gen_ndr/srv_dfs.h"
# include "../librpc/gen_ndr/srv_dssetup.h"
# include "../librpc/gen_ndr/srv_echo.h"
# include "../librpc/gen_ndr/srv_eventlog.h"
# include "../librpc/gen_ndr/srv_initshutdown.h"
# include "../librpc/gen_ndr/srv_lsa.h"
# include "../librpc/gen_ndr/srv_netlogon.h"
# include "../librpc/gen_ndr/srv_ntsvcs.h"
# include "../librpc/gen_ndr/srv_samr.h"
# include "../librpc/gen_ndr/srv_spoolss.h"
# include "../librpc/gen_ndr/srv_srvsvc.h"
# include "../librpc/gen_ndr/srv_svcctl.h"
# include "../librpc/gen_ndr/srv_winreg.h"
# include "../librpc/gen_ndr/srv_wkssvc.h"
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# include "printing/notify.h"
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# include "printing.h"
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# include "serverid.h"
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static struct files_struct * log_writeable_file_fn (
struct files_struct * fsp , void * private_data )
{
bool * found = ( bool * ) private_data ;
char * path ;
if ( ! fsp - > can_write ) {
return NULL ;
}
if ( ! ( * found ) ) {
DEBUG ( 0 , ( " Writable files open at exit: \n " ) ) ;
* found = true ;
}
path = talloc_asprintf ( talloc_tos ( ) , " %s/%s " , fsp - > conn - > connectpath ,
smb_fname_str_dbg ( fsp - > fsp_name ) ) ;
if ( path = = NULL ) {
DEBUGADD ( 0 , ( " <NOMEM> \n " ) ) ;
}
DEBUGADD ( 0 , ( " %s \n " , path ) ) ;
TALLOC_FREE ( path ) ;
return NULL ;
}
/****************************************************************************
Exit the server .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Reasons for shutting down a server process. */
enum server_exit_reason { SERVER_EXIT_NORMAL , SERVER_EXIT_ABNORMAL } ;
static void exit_server_common ( enum server_exit_reason how ,
const char * const reason ) _NORETURN_ ;
static void exit_server_common ( enum server_exit_reason how ,
const char * const reason )
{
bool had_open_conn = false ;
struct smbd_server_connection * sconn = smbd_server_conn ;
if ( ! exit_firsttime )
exit ( 0 ) ;
exit_firsttime = false ;
change_to_root_user ( ) ;
if ( sconn & & sconn - > smb1 . negprot . auth_context ) {
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TALLOC_FREE ( sconn - > smb1 . negprot . auth_context ) ;
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}
if ( sconn ) {
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if ( lp_log_writeable_files_on_exit ( ) ) {
bool found = false ;
files_forall ( sconn , log_writeable_file_fn , & found ) ;
}
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had_open_conn = conn_close_all ( sconn ) ;
invalidate_all_vuids ( sconn ) ;
}
/* 3 second timeout. */
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print_notify_send_messages ( sconn - > msg_ctx , 3 ) ;
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/* delete our entry in the serverid database. */
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if ( am_parent ) {
/*
* For children the parent takes care of cleaning up
*/
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serverid_deregister ( sconn_server_id ( sconn ) ) ;
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}
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# ifdef WITH_DFS
if ( dcelogin_atmost_once ) {
dfs_unlogin ( ) ;
}
# endif
# ifdef USE_DMAPI
/* Destroy Samba DMAPI session only if we are master smbd process */
if ( am_parent ) {
if ( ! dmapi_destroy_session ( ) ) {
DEBUG ( 0 , ( " Unable to close Samba DMAPI session \n " ) ) ;
}
}
# endif
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if ( am_parent ) {
rpc_wkssvc_shutdown ( ) ;
rpc_dssetup_shutdown ( ) ;
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# ifdef DEVELOPER
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rpc_rpcecho_shutdown ( ) ;
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# endif
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rpc_netdfs_shutdown ( ) ;
rpc_initshutdown_shutdown ( ) ;
rpc_eventlog_shutdown ( ) ;
rpc_ntsvcs_shutdown ( ) ;
rpc_svcctl_shutdown ( ) ;
rpc_spoolss_shutdown ( ) ;
rpc_srvsvc_shutdown ( ) ;
rpc_winreg_shutdown ( ) ;
rpc_netlogon_shutdown ( ) ;
rpc_samr_shutdown ( ) ;
rpc_lsarpc_shutdown ( ) ;
}
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locking_end ( ) ;
printing_end ( ) ;
/*
* we need to force the order of freeing the following ,
* because smbd_msg_ctx is not a talloc child of smbd_server_conn .
*/
sconn = NULL ;
TALLOC_FREE ( smbd_server_conn ) ;
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server_messaging_context_free ( ) ;
server_event_context_free ( ) ;
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TALLOC_FREE ( smbd_memcache_ctx ) ;
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if ( how ! = SERVER_EXIT_NORMAL ) {
DEBUGSEP ( 0 ) ;
DEBUG ( 0 , ( " Abnormal server exit: %s \n " ,
reason ? reason : " no explanation provided " ) ) ;
DEBUGSEP ( 0 ) ;
log_stack_trace ( ) ;
dump_core ( ) ;
} else {
DEBUG ( 3 , ( " Server exit (%s) \n " ,
( reason ? reason : " normal exit " ) ) ) ;
if ( am_parent ) {
pidfile_unlink ( ) ;
}
gencache_stabilize ( ) ;
}
/* if we had any open SMB connections when we exited then we
need to tell the parent smbd so that it can trigger a retry
of any locks we may have been holding or open files we were
blocking */
if ( had_open_conn ) {
exit ( 1 ) ;
} else {
exit ( 0 ) ;
}
}
void exit_server ( const char * const explanation )
{
exit_server_common ( SERVER_EXIT_ABNORMAL , explanation ) ;
}
void exit_server_cleanly ( const char * const explanation )
{
exit_server_common ( SERVER_EXIT_NORMAL , explanation ) ;
}