/*
 * Copyright (C) 2013 Doubango Telecom <http://www.doubango.org>
 *	
 * This file is part of Open Source Doubango Framework.
 *
 * DOUBANGO is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *	
 * DOUBANGO is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *	
 * You should have received a copy of the GNU General Public License
 * along with DOUBANGO.
 *
 */
 
 /**@file tnet_dtls.h
  * @brief DTLS utilitity functions, based on openssl.
  */
 #ifndef TNET_DTLS_H
 #define TNET_DTLS_H
 
 #include "tinynet_config.h"
 #include "tnet_types.h"
 
 TNET_BEGIN_DECLS
 
 struct ssl_ctx_st;
 struct tnet_socket_s;
 
 typedef void tnet_dtls_socket_handle_t;
 
 typedef enum tnet_dtls_socket_event_type_e
 {
 	tnet_dtls_socket_event_type_handshake_started,
 	tnet_dtls_socket_event_type_handshake_succeed,
 	tnet_dtls_socket_event_type_handshake_failed,
 	tnet_dtls_socket_event_type_fingerprint_mismatch,
 	tnet_dtls_socket_event_type_error,
 	tnet_dtls_socket_event_type_dtls_srtp_profile_selected, /* SRTP_AES128_CM_SHA1_80 | SRTP_AES128_CM_SHA1_32 */
 	tnet_dtls_socket_event_type_dtls_srtp_data, /* key||salt */
 }
 tnet_dtls_socket_event_type_t;
 
 typedef int (*tnet_dtls_socket_cb_f)(const void* usrdata, tnet_dtls_socket_event_type_t e, const tnet_dtls_socket_handle_t* handle, const void* data, tsk_size_t size);
 
 TINYNET_API tsk_bool_t tnet_dtls_is_srtp_supported();
 TINYNET_API tsk_bool_t tnet_dtls_is_supported();
 TINYNET_API tnet_dtls_hash_type_t tnet_dtls_get_hash_from_string(const char* hash);
 TINYNET_API tnet_dtls_setup_t tnet_dtls_get_setup_from_string(const char* setup);
 TINYNET_API int tnet_dtls_get_fingerprint(const char* certfile, tnet_fingerprint_t* fingerprint, tnet_dtls_hash_type_t hash);
 TINYNET_API tnet_dtls_socket_handle_t* tnet_dtls_socket_create(struct tnet_socket_s* wrapped_sock, struct ssl_ctx_st* ssl_ctx);
 TINYNET_API tnet_fd_t tnet_dtls_socket_get_fd(const tnet_dtls_socket_handle_t* handle);
 TINYNET_API const struct sockaddr_storage* tnet_dtls_socket_get_remote_addr(const tnet_dtls_socket_handle_t* handle);
 TINYNET_API int tnet_dtls_socket_set_callback(tnet_dtls_socket_handle_t* handle, const void* usrdata, tnet_dtls_socket_cb_f func);
 TINYNET_API int tnet_dtls_socket_set_remote_fingerprint(tnet_dtls_socket_handle_t* handle, const tnet_fingerprint_t* fingerprint, tnet_dtls_hash_type_t hash);
 TINYNET_API int tnet_dtls_socket_set_store_handshakingdata(tnet_dtls_socket_handle_t* handle, tsk_bool_t handshake_storedata);
 TINYNET_API int tnet_dtls_socket_get_handshakingdata(tnet_dtls_socket_handle_t* handle, const void** data, tsk_size_t *size);
 TINYNET_API int tnet_dtls_socket_use_srtp(tnet_dtls_socket_handle_t* handle);
 TINYNET_API int tnet_dtls_socket_set_setup(tnet_dtls_socket_handle_t* handle, tnet_dtls_setup_t setup);
 TINYNET_API tsk_bool_t tnet_dtls_socket_is_remote_cert_fp_match(tnet_dtls_socket_handle_t* handle);
 TINYNET_API int tnet_dtls_socket_do_handshake(tnet_dtls_socket_handle_t* handle, const struct sockaddr_storage* remote_addr);
 TINYNET_API tsk_bool_t tnet_dtls_socket_is_handshake_completed(const tnet_dtls_socket_handle_t* handle);
 TINYNET_API int tnet_dtls_socket_handle_incoming_data(tnet_dtls_socket_handle_t* handle, const void* data, tsk_size_t size);
 
 TINYNET_GEXTERN const tsk_object_def_t *tnet_dtls_socket_def_t;
 
 TNET_END_DECLS
 
 #endif /* TNET_DTLS_H */