1 files changed, 112 insertions, 0 deletions
diff --git a/src/charon/network/socket.h b/src/charon/network/socket.h
new file mode 100644
index 000000000..ef60fa7b6
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+++ b/src/charon/network/socket.h
@@ -0,0 +1,112 @@
+/**
+ * @file socket.h
+ * 
+ * @brief Interface for socket_t.
+ * 
+ */
+
+/*
+ * Copyright (C) 2006 Tobias Brunner, Daniel Roethlisberger
+ * Copyright (C) 2005-2006 Martin Willi
+ * Copyright (C) 2005 Jan Hutter
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program 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 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program 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.
+ */
+
+#ifndef SOCKET_H_
+#define SOCKET_H_
+
+typedef struct socket_t socket_t;
+
+#include <library.h>
+#include <network/packet.h>
+#include <utils/host.h>
+#include <utils/linked_list.h>
+
+/**
+ * @brief Maximum size of a packet.
+ *
+ * 3000 Bytes should be sufficient, see IKEv2 RFC.
+ *
+ * @ingroup network
+ */
+#define MAX_PACKET 3000
+
+/**
+ * @brief Abstraction of all sockets (IPv6/IPv6 send/receive).
+ *
+ * All available sockets are bound and the receive function
+ * reads from them. To allow binding of other daemons (pluto) to
+ * UDP/500, this implementation uses RAW sockets. An installed
+ * "Linux socket filter" filters out all non-IKEv2 traffic and handles
+ * just IKEv2 messages. An other daemon (pluto) must handle all traffic
+ * seperatly, e.g. ignore IKEv2 traffic, since charon handles that. 
+ * 
+ * @b Constructors:
+ * - socket_create()
+ * 
+ * @ingroup network
+ */
+struct socket_t {
+	
+	/**
+	 * @brief Receive a packet.
+	 * 
+	 * Reads a packet from the socket and sets source/dest
+	 * appropriately.
+	 * 
+	 * @param this			socket_t object to work on
+	 * @param packet		pinter gets address from allocated packet_t
+	 * @return 				
+	 * 						- SUCCESS when packet successfully received
+	 * 						- FAILED when unable to receive
+	 */
+	status_t (*receive) (socket_t *this, packet_t **packet);
+	
+	/**
+	 * @brief Send a packet.
+	 * 
+	 * Sends a packet to the net using destination from the packet.
+	 * Packet is sent using default routing mechanisms, thus the 
+	 * source address in packet is ignored.
+	 * 
+	 * @param this			socket_t object to work on
+	 * @param packet[out]	packet_t to send
+	 * @return 				
+	 * 						- SUCCESS when packet successfully sent
+	 * 						- FAILED when unable to send
+	 */
+	status_t (*send) (socket_t *this, packet_t *packet);
+	
+	/**
+	 * @brief Destroy sockets.
+	 * 
+	 * close sockets and destroy socket_t object
+	 * 
+	 * @param this 			socket_t to destroy
+	 */
+	void (*destroy) (socket_t *this);
+};
+
+/**
+ * @brief Create a socket_t, wich binds multiple sockets.
+ *
+ * @param port				port to bind socket to
+ * @param natt_port			port to float to in NAT-T
+ * @return  				socket_t object
+ *
+ * @ingroup network
+ */
+socket_t *socket_create(u_int16_t port, u_int16_t natt_port);
+
+
+#endif /*SOCKET_H_*/