/** @brief handles shutdown syscall at the exit in case of address translation */
void syscall_shutdown_post(reg_s * reg, process_descriptor_t * proc)
{
XBT_DEBUG("shutdown_post");
proc_outside(proc);
struct infos_socket *is = get_infos_socket(proc, (int) reg->arg[0]);
if (is == NULL) {
reg->ret = -EBADF;
return;
}
comm_shutdown(is);
if (strace_option)
print_shutdown_syscall(reg, proc);
}
int main (int argc, char**argv)
{
int ret = 0;
int heartbeat_usec = 50000; //20Hz is ok by default
uint64_t last_beat = 0;
Log_info ("cloudvpn starting");
Log (0, "You are using CloudVPN, which is Free software.");
Log (0, "For more information please see the GNU GPL license,");
Log (0, "which you should have received along with this program.");
setup_sighandler (kill_cloudvpn);
/*
* initialization
*/
if (!config_parse (argc, argv) ) {
Log_error ("failed to parse config, terminating.");
ret = 1;
goto failed_config;
}
if (!config_get_int ("heartbeat", heartbeat_usec) )
heartbeat_usec = 50000;
Log_info ("heartbeat is set to %d usec", heartbeat_usec);
timestamp_update(); //get initial timestamp
status_init();
route_init();
squeue_init();
network_init();
if (poll_init() ) {
Log_fatal ("poll initialization failed");
ret = 2;
goto failed_poll;
}
if (do_memlock() ) {
Log_fatal ("locking process to memory failed");
ret = 3;
goto failed_poll;
}
if (comm_load() ) {
Log_fatal ("failed to load comm data");
ret = 4;
goto failed_poll;
}
if (comm_init() ) {
Log_fatal ("communication initialization failed");
ret = 5;
goto failed_comm;
}
if (gate_init() ) {
Log_fatal ("gate initialization failed");
ret = 6;
goto failed_gate;
}
if (do_chroot() ) {
Log_fatal ("chrooting failed");
ret = 7;
goto failed_sec;
}
if (do_switch_user() ) {
Log_fatal ("user switch failed");
ret = 8;
goto failed_sec;
}
/*
* main loop
*/
Log_info ("initialization complete, entering main loop");
last_beat = 0; //update immediately.
while (!g_terminate) {
timestamp_update();
if ( (timestamp() - last_beat)
< (unsigned int) heartbeat_usec) {
//poll more stuff
poll_wait_for_event (heartbeat_usec
- timestamp()
+ last_beat);
//send the results
comm_flush_data();
gate_flush_data();
continue;
}
last_beat = timestamp();
gate_periodic_update();
comm_periodic_update();
route_periodic_update();
status_try_export();
}
/*
* deinitialization
*/
Log_info ("shutting down");
failed_sec:
gate_shutdown();
failed_gate:
comm_shutdown();
failed_comm:
if (poll_deinit() )
Log_warn ("poll_deinit somehow failed!");
failed_poll:
failed_config:
if (!ret) Log_info ("cloudvpn exiting gracefully");
else Log_error ("cloudvpn exiting with code %d", ret);
return ret;
}