/*
* Check that the counts of running and retry servers stored in struct service
* are accurate
*/
static unsigned service_count_check( struct service *sp,
unsigned running_servers,
unsigned retry_servers )
{
char *sid = SVC_ID( sp ) ;
int error_count = 0 ;
const char *func = "service_count_check" ;
if ( SVC_RUNNING_SERVERS( sp ) != running_servers )
{
msg( LOG_ERR, func,
"service %s: actual running servers = %d, known running servers = %d",
sid, running_servers, SVC_RUNNING_SERVERS( sp ) ) ;
error_count++ ;
}
if ( SVC_RETRIES( sp ) != retry_servers )
{
msg( LOG_ERR, func,
"service %s: actual retry servers = %d, known retry servers = %d",
sid, retry_servers, SVC_RETRIES( sp ) ) ;
error_count++ ;
}
if ( error_count && debug.on )
msg( LOG_DEBUG, func, "%s: %d errors detected", sid, error_count ) ;
return( error_count ) ;
}
void svc_dump( const struct service *sp, int fd )
{
tabprint( fd, 0, "Service = %s\n", SC_NAME( SVC_CONF( sp ) ) ) ;
tabprint( fd, 1, "State = %s\n",
nv_get_name( service_states, (int) SVC_STATE(sp) ) ) ;
sc_dump( SVC_CONF( sp ), fd, 1, FALSE ) ;
if ( SVC_IS_ACTIVE(sp) )
{
tabprint( fd, 1, "running servers = %d\n", SVC_RUNNING_SERVERS(sp) ) ;
tabprint( fd, 1, "retry servers = %d\n", SVC_RETRIES(sp) ) ;
tabprint( fd, 1, "attempts = %d\n", SVC_ATTEMPTS(sp) ) ;
tabprint( fd, 1, "service fd = %d\n", SVC_FD(sp) ) ;
}
Sputchar( fd, '\n' ) ;
}
static void consistency_check( enum check_type type )
{
int fd ;
fd_set socket_mask_copy ;
unsigned u ;
int errors ;
unsigned total_running_servers = 0 ;
unsigned total_retry_servers = 0 ;
unsigned error_count = 0 ;
bool_int service_count_check_failed = FALSE ;
const char *func = "consistency_check" ;
socket_mask_copy = ps.rws.socket_mask ;
for ( u = 0 ; u < pset_count( SERVICES( ps ) ) ; u++ )
{
register struct service *sp = SP( pset_pointer( SERVICES( ps ), u ) ) ;
char *sid = SVC_ID( sp ) ;
unsigned running_servers ;
unsigned retry_servers ;
error_count += refcount_check( sp, &running_servers, &retry_servers ) ;
if ( SVC_IS_AVAILABLE( sp ) || SVC_IS_DISABLED ( sp ) )
{
/*
* In this case, there may be some servers running
*/
if ( FD_ISSET( SVC_FD( sp ), &socket_mask_copy ) )
{
if ( SVC_IS_DISABLED( sp ) )
{
msg( LOG_ERR, func,
"fd of disabled service %s still in socket mask", sid ) ;
error_count++ ;
}
FD_CLR( SVC_FD( sp ), &socket_mask_copy ) ;
}
error_count += thread_check( sp, running_servers, retry_servers ) ;
errors = service_count_check( sp, running_servers, retry_servers ) ;
if ( ! errors && ! service_count_check_failed )
{
total_retry_servers += retry_servers ;
total_running_servers += running_servers ;
}
if ( errors )
{
service_count_check_failed = TRUE ;
error_count += errors ;
}
if ( SVC_IS_DISABLED( sp ) && SVC_RUNNING_SERVERS( sp ) == 0 )
{
msg( LOG_ERR, func,
"disabled service %s has 0 running servers\n", sid ) ;
error_count++ ;
continue ;
}
}
else
{
msg( LOG_ERR, func, "service %s not started", SVC_ID( sp ) ) ;
error_count++ ;
}
}
if ( ! service_count_check_failed )
{
if ( total_running_servers != pset_count( SERVERS( ps ) ) )
{
msg( LOG_ERR, func,
"total running servers (%d) != number of running servers (%d)",
total_running_servers, pset_count( SERVERS( ps ) ) ) ;
error_count++ ;
}
if ( total_retry_servers != pset_count( RETRIES( ps ) ) )
{
msg( LOG_ERR, func,
"total retry servers (%d) != number of retry servers (%d)",
total_retry_servers, pset_count( RETRIES( ps ) ) ) ;
error_count++ ;
}
}
/*
* Check if there are any descriptors set in socket_mask_copy
*/
for ( fd = 0 ; fd < ps.ros.max_descriptors ; fd++ )
if ( FD_ISSET( fd, &socket_mask_copy ) && ((fd != signals_pending[0]) && fd != signals_pending[1]))
{
msg( LOG_ERR, func,
"descriptor %d set in socket mask but there is no service for it",
fd ) ;
error_count++ ;
}
if ( error_count != 0 )
msg( LOG_WARNING, func,
"Consistency check detected %d errors", error_count ) ;
else
if ( type == USER_REQUESTED || debug.on )
msg( LOG_INFO, func, "Consistency check passed" ) ;
if( type == PERIODIC )
if ( xtimer_add( periodic_check, ps.ros.cc_interval ) == -1 )
msg( LOG_ERR, func, "Failed to start consistency timer" ) ;
}
/*
* Activate a service.
*/
status_e svc_activate( struct service *sp )
{
struct service_config *scp = SVC_CONF( sp ) ;
status_e status ;
const char *func = "svc_activate" ;
/* No activation for MUXCLIENTS.
*/
if (SC_IS_MUXCLIENT( scp ))
{
return( OK );
}
if( SC_IPV4( scp ) ) {
SVC_FD(sp) = socket( AF_INET,
SC_SOCKET_TYPE( scp ), SC_PROTOVAL( scp ) ) ;
} else if( SC_IPV6( scp ) ) {
SVC_FD(sp) = socket( AF_INET6,
SC_SOCKET_TYPE( scp ), SC_PROTOVAL( scp ) ) ;
}
if ( SVC_FD(sp) == -1 )
{
msg( LOG_ERR, func,
"socket creation failed (%m). service = %s", SC_ID( scp ) ) ;
return( FAILED ) ;
}
if ( set_fd_modes( sp ) == FAILED )
{
(void) Sclose( SVC_FD(sp) ) ;
return( FAILED ) ;
}
#ifndef NO_RPC
if ( SC_IS_RPC( scp ) )
status = activate_rpc( sp ) ;
else
#endif /* ! NO_RPC */
status = activate_normal( sp ) ;
if ( status == FAILED )
{
(void) Sclose( SVC_FD(sp) ) ;
return( FAILED ) ;
}
#ifdef HAVE_MDNS
xinetd_mdns_register(scp);
#endif
if ( log_start( sp, &SVC_LOG(sp) ) == FAILED )
{
deactivate( sp ) ;
return( FAILED ) ;
}
/*
* Initialize the service data
*/
SVC_RUNNING_SERVERS(sp) = SVC_RETRIES(sp) = 0 ;
if ( SC_MUST_LISTEN( scp ) )
(void) listen( SVC_FD(sp), LISTEN_BACKLOG ) ;
ps.rws.descriptors_free-- ;
SVC_STATE(sp) = SVC_ACTIVE ;
FD_SET( SVC_FD(sp), &ps.rws.socket_mask ) ;
if ( SVC_FD(sp) > ps.rws.mask_max )
ps.rws.mask_max = SVC_FD(sp) ;
ps.rws.active_services++ ;
ps.rws.available_services++ ;
return( OK ) ;
}
