- import of strongswan-2.7.0

- applied patch for charon
2006-04-28 07:14:48 +00:00
parent 52923c9acb
commit 997358a6c4
2043 changed files with 346842 additions and 0 deletions
@@ -0,0 +1,189 @@
+/**
+ * @file packet.c
+ * 
+ * @brief Implementation of packet_t.
+ * 
+ */
+
+/*
+ * Copyright (C) 2005 Jan Hutter, Martin Willi
+ * 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.
+ */
+
+
+#include "packet.h"
+
+
+typedef struct private_packet_t private_packet_t;
+
+/**
+ * Private data of an packet_t object.
+ */
+struct private_packet_t {
+
+	/**
+	 * Public part of a packet_t object.
+	 */
+	packet_t public;
+	
+	/**
+	 * source address
+	 */
+	host_t *source;
+		
+	/**
+	 * destination address
+	 */
+	host_t *destination;
+	 
+	 /**
+	  * message data
+	  */
+	chunk_t data;
+};
+
+/**
+ * Implements packet_t.get_source
+ */
+static void set_source(private_packet_t *this, host_t *source)
+{
+	if (this->source)
+	{
+		this->source->destroy(this->source);	
+	}
+	this->source = source;
+}
+
+/**
+ * Implements packet_t.set_destination
+ */
+static void set_destination(private_packet_t *this, host_t *destination)
+{
+	if (this->destination)
+	{
+		this->destination->destroy(this->destination);	
+	}
+	this->destination = destination;
+}
+
+/**
+ * Implements packet_t.get_source
+ */
+static host_t *get_source(private_packet_t *this)
+{
+	return this->source;
+}
+
+/**
+ * Implements packet_t.get_destination
+ */
+static host_t *get_destination(private_packet_t *this)
+{
+	return this->destination;
+}
+	
+/**
+ * Implements packet_t.get_data
+ */
+static chunk_t get_data(private_packet_t *this)
+{
+	return this->data;
+}
+
+/**
+ * Implements packet_t.set_data
+ */
+static void set_data(private_packet_t *this, chunk_t data)
+{
+	free(this->data.ptr);
+	this->data = data;
+}
+
+/**
+ * Implements packet_t.destroy.
+ */
+static void destroy(private_packet_t *this)
+{
+	if (this->source != NULL)
+	{
+		this->source->destroy(this->source);
+	}	
+	if (this->destination != NULL)
+	{
+		this->destination->destroy(this->destination);
+	}
+	free(this->data.ptr);
+	free(this);
+}
+
+/**
+ * Implements packet_t.clone.
+ */
+static packet_t *clone(private_packet_t *this)
+{
+	private_packet_t *other = (private_packet_t*)packet_create();
+
+	if (this->destination != NULL)
+	{
+		other->destination = this->destination->clone(this->destination);
+	}
+	else 
+	{
+		other->destination = NULL;
+	}
+	
+	if (this->source != NULL)
+	{
+		other->source = this->source->clone(this->source);
+	}
+	else 
+	{
+		other->source = NULL;
+	}
+	
+	/* only clone existing chunks :-) */
+	if (this->data.ptr != NULL)
+	{
+		other->data.ptr = clalloc(this->data.ptr,this->data.len);
+		other->data.len = this->data.len;
+	}
+	else
+	{
+		other->data = CHUNK_INITIALIZER;
+	}
+	return &(other->public);
+}
+
+
+/*
+ * Documented in header
+ */
+packet_t *packet_create()
+{
+	private_packet_t *this = malloc_thing(private_packet_t);
+
+	this->public.set_data = (void(*) (packet_t *,chunk_t)) set_data;
+	this->public.get_data = (chunk_t(*) (packet_t *)) get_data;
+	this->public.set_source = (void(*) (packet_t *,host_t*)) set_source;
+	this->public.get_source = (host_t*(*) (packet_t *)) get_source;
+	this->public.set_destination = (void(*) (packet_t *,host_t*)) set_destination;
+	this->public.get_destination = (host_t*(*) (packet_t *)) get_destination;
+	this->public.clone = (packet_t*(*) (packet_t *))clone;
+	this->public.destroy = (void(*) (packet_t *)) destroy;
+	
+	this->destination = NULL;
+	this->source = NULL;
+	this->data = CHUNK_INITIALIZER;
+	
+	return &(this->public);
+}