Moving charon to libcharon.

2010-03-19 13:34:52 +01:00
parent 7c11d10eb8
commit 08c5572602
480 changed files with 0 additions and 0 deletions
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2008 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 "stroke_shared_key.h"
+
+#include <utils/linked_list.h>
+
+typedef struct private_stroke_shared_key_t private_stroke_shared_key_t;
+
+/**
+ * private data of shared_key
+ */
+struct private_stroke_shared_key_t {
+
+	/**
+	 * implements shared_key_t
+	 */
+	stroke_shared_key_t public;
+
+	/**
+	 * type of this key
+	 */
+	shared_key_type_t type;
+
+	/**
+	 * data of the key
+	 */
+	chunk_t key;
+
+	/**
+	 * list of key owners, as identification_t
+	 */
+	linked_list_t *owners;
+
+	/**
+	 * reference counter
+	 */
+	refcount_t ref;
+};
+
+/**
+ * Implementation of shared_key_t.get_type.
+ */
+static shared_key_type_t get_type(private_stroke_shared_key_t *this)
+{
+	return this->type;
+}
+
+/**
+ * Implementation of shared_key_t.get_ref.
+ */
+static private_stroke_shared_key_t* get_ref(private_stroke_shared_key_t *this)
+{
+	ref_get(&this->ref);
+	return this;
+}
+
+/**
+ * Implementation of shared_key_t.get_key.
+ */
+static chunk_t get_key(private_stroke_shared_key_t *this)
+{
+	return this->key;
+}
+
+/**
+ * Implementation of stroke_shared_key_t.has_owner.
+ */
+static id_match_t has_owner(private_stroke_shared_key_t *this, identification_t *owner)
+{
+	enumerator_t *enumerator;
+	id_match_t match, best = ID_MATCH_NONE;
+	identification_t *current;
+
+	enumerator = this->owners->create_enumerator(this->owners);
+	while (enumerator->enumerate(enumerator, &current))
+	{
+		match  = owner->matches(owner, current);
+		if (match > best)
+		{
+			best = match;
+		}
+	}
+	enumerator->destroy(enumerator);
+	return best;
+}
+/**
+ * Implementation of stroke_shared_key_t.add_owner.
+ */
+static void add_owner(private_stroke_shared_key_t *this, identification_t *owner)
+{
+	this->owners->insert_last(this->owners, owner);
+}
+
+/**
+ * Implementation of stroke_shared_key_t.destroy
+ */
+static void destroy(private_stroke_shared_key_t *this)
+{
+	if (ref_put(&this->ref))
+	{
+		this->owners->destroy_offset(this->owners, offsetof(identification_t, destroy));
+		chunk_free(&this->key);
+		free(this);
+	}
+}
+
+/**
+ * create a shared key
+ */
+stroke_shared_key_t *stroke_shared_key_create(shared_key_type_t type, chunk_t key)
+{
+	private_stroke_shared_key_t *this = malloc_thing(private_stroke_shared_key_t);
+
+	this->public.shared.get_type = (shared_key_type_t(*)(shared_key_t*))get_type;
+	this->public.shared.get_key = (chunk_t(*)(shared_key_t*))get_key;
+	this->public.shared.get_ref = (shared_key_t*(*)(shared_key_t*))get_ref;
+	this->public.shared.destroy = (void(*)(shared_key_t*))destroy;
+	this->public.add_owner = (void(*)(stroke_shared_key_t*, identification_t *owner))add_owner;
+	this->public.has_owner = (id_match_t(*)(stroke_shared_key_t*, identification_t *owner))has_owner;
+
+	this->owners = linked_list_create();
+	this->type = type;
+	this->key = key;
+	this->ref = 1;
+
+	return &this->public;
+}