Update libsrtp to version 2.0

crypto/include/aes_gcm_ossl.h

 /*
  * aes_gcm_ossl.h
  *
  * Header for AES Galois Counter Mode.
  *
  * John A. Foley
  * Cisco Systems, Inc.
  *
  */
 /*
- *      
+ *
  * Copyright (c) 2013, Cisco Systems, Inc.
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
- * 
+ *
  *   Redistributions of source code must retain the above copyright
  *   notice, this list of conditions and the following disclaimer.
- * 
+ *
  *   Redistributions in binary form must reproduce the above
  *   copyright notice, this list of conditions and the following
  *   disclaimer in the documentation and/or other materials provided
  *   with the distribution.
- * 
+ *
  *   Neither the name of the Cisco Systems, Inc. nor the names of its
  *   contributors may be used to endorse or promote products derived
  *   from this software without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #ifndef AES_GCM_OSSL_H
 #define AES_GCM_OSSL_H
 
 #include "cipher.h"
 #include "srtp.h"
+#include "datatypes.h"
 #include <openssl/evp.h>
 #include <openssl/aes.h>
 
 typedef struct {
-  v256_t   key;
-  int      key_size;
-  int      tag_len;
-  EVP_CIPHER_CTX ctx;
-  cipher_direction_t dir;
-} aes_gcm_ctx_t;
+    int key_size;
+    int tag_len;
+    EVP_CIPHER_CTX* ctx;
+    srtp_cipher_direction_t dir;
+} srtp_aes_gcm_ctx_t;
 
 #endif /* AES_GCM_OSSL_H */