static void restart(void)
{
mroute4_disable(0);
mroute6_disable(0);
mcgroup4_disable();
mcgroup6_disable();
/* No need to close the IPC, only at cleanup. */
/* Update list of interfaces and create new virtual interface mappings in kernel. */
iface_init();
mroute4_enable(do_vifs, table_id, cache_tmo);
mroute6_enable(do_vifs, table_id);
}
/* Init everything before forking, so we can fail and return an
* error code in the parent and the initscript will fail */
static void start_server(int background)
{
int sd, api = 0;
if (background && daemonize())
return;
smclog(LOG_NOTICE, 0, "%s", version_info);
/* Build list of multicast-capable physical interfaces that
* are currently assigned an IP address. */
iface_init();
if (!mroute4_enable())
api++;
if (!mroute6_enable())
api++;
/* At least one API (IPv4 or IPv6) must have initialized successfully
* otherwise we abort the server initialization. */
if (!api) {
smclog(LOG_INIT, ENOPROTOOPT, "Kernel does not support multicast routing");
exit(1);
}
sd = ipc_server_init();
if (sd < 0)
smclog(LOG_WARNING, errno, "Failed setting up IPC socket, client communication disabled");
atexit(clean);
signal_init();
read_conf_file(conf_file);
/* Everything setup, notify any clients by creating the pidfile */
if (pidfile(NULL))
smclog(LOG_WARNING, errno, "Failed creating pidfile");
server_loop(sd);
}
/* Init everything before forking, so we can fail and return an
* error code in the parent and the initscript will fail */
static int start_server(void)
{
int api = 2, busy = 0;
if (geteuid() != 0) {
smclog(LOG_ERR, "Need root privileges to start %s", prognm);
return 1;
}
if (background) {
if (daemon(0, 0) < 0) {
smclog(LOG_ERR, "Failed daemonizing: %s", strerror(errno));
return 1;
}
}
/* Hello world! */
smclog(LOG_NOTICE, "%s", version_info);
if (startup_delay > 0) {
smclog(LOG_INFO, "Startup delay requested, waiting %d sec before continuing.", startup_delay);
sleep(startup_delay);
}
/*
* Timer API needs to be initilized before mroute4_enable()
*/
timer_init();
/*
* Build list of multicast-capable physical interfaces
*/
iface_init();
if (mroute4_enable(do_vifs, table_id, cache_tmo)) {
if (errno == EADDRINUSE)
busy++;
api--;
}
if (mroute6_enable(do_vifs, table_id)) {
if (errno == EADDRINUSE)
busy++;
api--;
}
/* At least one API (IPv4 or IPv6) must have initialized successfully
* otherwise we abort the server initialization. */
if (!api) {
if (busy)
smclog(LOG_ERR, "Another multicast routing application is already running.");
else
smclog(LOG_ERR, "Kernel does not support multicast routing.");
exit(1);
}
atexit(clean);
signal_init();
ipc_init();
conf_read(conf_file, do_vifs);
/* Everything setup, notify any clients waiting for us */
notify_ready(pid_file, uid, gid);
/* Drop root privileges before entering the server loop */
cap_drop_root(uid, gid);
return server_loop();
}