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) 2007-2010 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 as published by
24 * the Free Software Foundation, either version 3 of the License, or
27 * uAnytun is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
32 * You should have received a copy of the GNU General Public License
33 * along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
36 #ifndef UANYTUN_init_crypt_h_INCLUDED
37 #define UANYTUN_init_crypt_h_INCLUDED
51 #ifndef USE_SSL_CRYPTO
55 #define MIN_GCRYPT_VERSION "1.2.0"
59 if(!gcry_check_version(MIN_GCRYPT_VERSION)) {
60 log_printf(NOTICE, "invalid Version of libgcrypt, should be >= %s", MIN_GCRYPT_VERSION);
64 gcry_error_t err = gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
66 log_printf(ERROR, "failed to disable secure memory: %s", gcry_strerror(err));
70 err = gcry_control(GCRYCTL_INITIALIZATION_FINISHED);
72 log_printf(ERROR, "failed to finish libgcrypt initialization: %s", gcry_strerror(err));
76 log_printf(NOTICE, "libgcrypt init finished");