Imported Upstream version 0.3.5

[anytun.git] / src / keyDerivation.h

diff --git a/src/keyDerivation.h b/src/keyDerivation.h
index f34499c..3290b3e 100644 (file)
--- a/src/keyDerivation.h
+++ b/src/keyDerivation.h
@@ -6,12 +6,12 @@
  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
  *  ethernet, ip, arp ...). satp directly includes cryptography and
- *  message authentication based on the methodes used by SRTP.  It is
+ *  message authentication based on the methods used by SRTP.  It is
  *  intended to deliver a generic, scaleable and secure solution for
  *  tunneling and relaying of packets of any protocol.
  *
  *
- *  Copyright (C) 2007-2009 Othmar Gsenger, Erwin Nindl,
+ *  Copyright (C) 2007-2014 Markus Grüneis, Othmar Gsenger, Erwin Nindl,
  *                          Christian Pointner <satp@wirdorange.org>
  *
  *  This file is part of Anytun.
@@ -27,7 +27,20 @@
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
- *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
+ *  along with Anytun.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  In addition, as a special exception, the copyright holders give
+ *  permission to link the code of portions of this program with the
+ *  OpenSSL library under certain conditions as described in each
+ *  individual source file, and distribute linked combinations
+ *  including the two.
+ *  You must obey the GNU General Public License in all respects
+ *  for all of the code used other than OpenSSL.  If you modify
+ *  file(s) with this exception, you may extend this exception to your
+ *  version of the file(s), but you are not obligated to do so.  If you
+ *  do not wish to do so, delete this exception statement from your
+ *  version.  If you delete this exception statement from all source
+ *  files in the program, then also delete it here.
  */
 
 #ifndef ANYTUN_keyDerivation_h_INCLUDED
@@ -40,11 +53,15 @@
 #include "options.h"
 
 #ifndef NO_CRYPT
-#ifndef USE_SSL_CRYPTO
-#include <gcrypt.h>
-#else
+
+#if defined(USE_SSL_CRYPTO)
 #include <openssl/aes.h>
+#elif defined(USE_NETTLE)
+#include <nettle/aes.h>
+#else  // USE_GCRYPT is the default
+#include <gcrypt.h>
 #endif
+
 #endif
 #include <boost/archive/text_oarchive.hpp>
 #include <boost/archive/text_iarchive.hpp>
@@ -168,11 +185,13 @@ private:
     ar& boost::serialization::base_object<KeyDerivation>(*this);
   }
 
-#ifndef USE_SSL_CRYPTO
-  gcry_cipher_hd_t handle_[2];
-#else
+#if defined(USE_SSL_CRYPTO)
   AES_KEY aes_key_[2];
   uint8_t ecount_buf_[2][AES_BLOCK_SIZE];
+#elif defined(USE_NETTLE)
+  struct aes_ctx ctx_[2];
+#else  // USE_GCRYPT is the default
+  gcry_cipher_hd_t handle_[2];
 #endif
 
 #ifdef _MSC_VER