4 * uAnytun is a tiny implementation of SATP. Unlike Anytun which is a full
5 * featured implementation uAnytun has no support for multiple connections
6 * or synchronisation. It is a small single threaded implementation intended
7 * to act as a client on small platforms.
8 * The secure anycast tunneling protocol (satp) defines a protocol used
9 * for communication between any combination of unicast and anycast
10 * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
11 * mode and allows tunneling of every ETHER TYPE protocol (e.g.
12 * ethernet, ip, arp ...). satp directly includes cryptography and
13 * message authentication based on the methodes used by SRTP. It is
14 * intended to deliver a generic, scaleable and secure solution for
15 * tunneling and relaying of packets of any protocol.
18 * Copyright (C) 2007-2008 Christian Pointner <equinox@anytun.org>
20 * This file is part of uAnytun.
22 * uAnytun is free software: you can redistribute it and/or modify
23 * it under the terms of the GNU General Public License version 3 as
24 * published by the Free Software Foundation.
26 * uAnytun is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
31 * You should have received a copy of the GNU General Public License
32 * along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
35 #include "datatypes.h"
39 #include "sig_handler.h"
41 volatile sig_atomic_t signal_exit = 0;
45 signal(SIGINT, handle_signal);
46 signal(SIGQUIT, handle_signal);
47 signal(SIGTERM, handle_signal);
48 signal(SIGHUP, handle_signal);
49 signal(SIGUSR1, handle_signal);
50 signal(SIGUSR2, handle_signal);
53 void handle_signal(int sig)
56 case SIGINT: log_printf(NOTICE, "SIG-Int caught, exitting"); signal_exit = 1; break;
57 case SIGQUIT: log_printf(NOTICE, "SIG-Quit caught, exitting"); signal_exit = 1; break;
58 case SIGTERM: log_printf(NOTICE, "SIG-Term caught, exitting"); signal_exit = 1; break;
59 case SIGHUP: log_printf(NOTICE, "SIG-Hup caught"); break;
60 case SIGUSR1: log_printf(NOTICE, "SIG-Usr1 caught"); break;
61 case SIGUSR2: log_printf(NOTICE, "SIG-Usr2 caught"); break;
62 default: log_printf(NOTICE, "Signal %d caught, ignoring", sig); break;