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authorTobias Brunner <tobias@strongswan.org>2012-08-13 12:07:52 +0200
committerTobias Brunner <tobias@strongswan.org>2012-08-13 12:07:52 +0200
commit09ae3d79ca0f1143736a0de45678915a3ebe5a3f (patch)
treed304e8e618450d0e4867dfc72e14ed575a442c20 /src/libipsec/ip_packet.h
parente4ef4c9877d5ccb773ace0edf655351428c39572 (diff)
parentefbb5e8c57330ec730825aa31ac5153f1d1c5913 (diff)
downloadstrongswan-09ae3d79ca0f1143736a0de45678915a3ebe5a3f.tar.bz2
strongswan-09ae3d79ca0f1143736a0de45678915a3ebe5a3f.tar.xz
Merge branch 'android-app'
This branch introduces a userland IPsec implementation (libipsec) and an Android App which targets the VpnService API that is provided by Android 4+. The implementation is based on the bachelor thesis 'Userland IPsec for Android 4' by Giuliano Grassi and Ralf Sager.
Diffstat (limited to 'src/libipsec/ip_packet.h')
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diff --git a/src/libipsec/ip_packet.h b/src/libipsec/ip_packet.h
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+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * 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.
+ */
+
+/**
+ * @defgroup ip_packet ip_packet
+ * @{ @ingroup libipsec
+ */
+
+#ifndef IP_PACKET_H_
+#define IP_PACKET_H_
+
+#include <library.h>
+#include <utils/host.h>
+#include <utils/packet.h>
+
+typedef struct ip_packet_t ip_packet_t;
+
+/**
+ * IP packet
+ */
+struct ip_packet_t {
+
+ /**
+ * IP version of this packet
+ *
+ * @return ip version
+ */
+ u_int8_t (*get_version)(ip_packet_t *this);
+
+ /**
+ * Get the source address of this packet
+ *
+ * @return source host
+ */
+ host_t *(*get_source)(ip_packet_t *this);
+
+ /**
+ * Get the destination address of this packet
+ *
+ * @return destination host
+ */
+ host_t *(*get_destination)(ip_packet_t *this);
+
+ /**
+ * Get the protocol (IPv4) or next header (IPv6) field of this packet.
+ *
+ * @return protocol|next header field
+ */
+ u_int8_t (*get_next_header)(ip_packet_t *this);
+
+ /**
+ * Get the complete IP packet (including the header)
+ *
+ * @return IP packet (internal data)
+ */
+ chunk_t (*get_encoding)(ip_packet_t *this);
+
+ /**
+ * Clone the IP packet
+ *
+ * @return clone of the packet
+ */
+ ip_packet_t *(*clone)(ip_packet_t *this);
+
+ /**
+ * Destroy an ip_packet_t
+ */
+ void (*destroy)(ip_packet_t *this);
+
+};
+
+/**
+ * Create an IP packet out of data from the wire (or decapsulated from another
+ * packet).
+ *
+ * @note The raw IP packet gets either owned by the new object, or destroyed,
+ * if the data is invalid.
+ *
+ * @param packet the IP packet (including header), gets owned
+ * @return ip_packet_t instance, or NULL if invalid
+ */
+ip_packet_t *ip_packet_create(chunk_t packet);
+
+#endif /** IP_PACKET_H_ @}*/