[svn-upgrade] Integrating new upstream version, strongswan (4.1.1)

1 files changed, 237 insertions, 0 deletions

diff --git a/src/charon/config/connections/local_connection_store.c b/src/charon/config/connections/local_connection_store.c
new file mode 100644
index 000000000..df4ec230a
--- /dev/null
+++ b/src/charon/config/connections/local_connection_store.c
@@ -0,0 +1,237 @@
+/**
+ * @file local_connection_store.c
+ *
+ * @brief Implementation of local_connection_store_t.
+ *
+ */
+
+/*
+ * Copyright (C) 2006 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 <string.h>
+
+#include "local_connection_store.h"
+
+#include <daemon.h>
+#include <utils/linked_list.h>
+
+
+typedef struct private_local_connection_store_t private_local_connection_store_t;
+
+/**
+ * Private data of an local_connection_store_t object
+ */
+struct private_local_connection_store_t {
+
+	/**
+	 * Public part
+	 */
+	local_connection_store_t public;
+	
+	/**
+	 * stored connection
+	 */
+	linked_list_t *connections;
+	
+	/**
+	 * Mutex to exclusivly access connection list
+	 */
+	pthread_mutex_t mutex;
+};
+
+
+/**
+ * Implementation of connection_store_t.get_connection_by_hosts.
+ */
+static connection_t *get_connection_by_hosts(private_local_connection_store_t *this, host_t *my_host, host_t *other_host)
+{
+	typedef enum {
+		PRIO_UNDEFINED=		0x00,
+		PRIO_ADDR_ANY= 		0x01,
+		PRIO_ADDR_MATCH=	0x02
+	} prio_t;
+
+	prio_t best_prio = PRIO_UNDEFINED;
+
+	iterator_t *iterator;
+	connection_t *candidate;
+	connection_t *found = NULL;
+	
+	DBG2(DBG_CFG, "looking for connection for host pair %H...%H",
+		 my_host, other_host);
+	
+	pthread_mutex_lock(&(this->mutex));
+	iterator = this->connections->create_iterator(this->connections, TRUE);
+	/* determine closest matching connection */
+	while (iterator->iterate(iterator, (void**)&candidate))
+	{
+		host_t *candidate_my_host;
+		host_t *candidate_other_host;
+
+		candidate_my_host = candidate->get_my_host(candidate);
+		candidate_other_host = candidate->get_other_host(candidate);
+
+		/* my_host addresses must match*/
+		if (my_host->ip_equals(my_host, candidate_my_host))
+		{
+			prio_t prio = PRIO_UNDEFINED;
+
+			/* exact match of peer host address or wildcard address? */
+			if (other_host->ip_equals(other_host, candidate_other_host))
+			{
+				prio |= PRIO_ADDR_MATCH;
+			}
+			else if (candidate_other_host->is_anyaddr(candidate_other_host))
+			{
+				prio |= PRIO_ADDR_ANY;
+			}
+
+			DBG2(DBG_CFG, "candidate connection \"%s\": %H...%H (prio=%d)",
+				 candidate->get_name(candidate),
+				 candidate_my_host, candidate_other_host, prio);
+
+			if (prio > best_prio)
+			{
+				found = candidate;
+				best_prio = prio;
+			}
+		}
+	}
+	iterator->destroy(iterator);
+	
+	if (found)
+	{
+		DBG2(DBG_CFG, "found matching connection \"%s\": %H...%H (prio=%d)",
+			 found->get_name(found), found->get_my_host(found),
+			 found->get_other_host(found), best_prio);
+		
+		/* give out a new reference to it */
+		found->get_ref(found);
+	}
+	pthread_mutex_unlock(&(this->mutex));
+	return found;
+}
+
+/**
+ * Implementation of connection_store_t.get_connection_by_name.
+ */
+static connection_t *get_connection_by_name(private_local_connection_store_t *this, char *name)
+{
+	iterator_t *iterator;
+	connection_t *current, *found = NULL;
+	
+	pthread_mutex_lock(&(this->mutex));
+	iterator = this->connections->create_iterator(this->connections, TRUE);
+	while (iterator->iterate(iterator, (void**)&current))
+	{
+		if (strcmp(name, current->get_name(current)) == 0)
+		{
+			found = current;
+			break;
+		}
+	}
+	iterator->destroy(iterator);
+	pthread_mutex_unlock(&(this->mutex));
+	
+	if (found)
+	{
+		/* get a new reference for it */
+		found->get_ref(found);
+	}
+	return found;
+}
+
+/**
+ * Implementation of connection_store_t.delete_connection.
+ */
+static status_t delete_connection(private_local_connection_store_t *this, char *name)
+{
+	iterator_t *iterator;
+	connection_t *current;
+	bool found = FALSE;
+	
+	pthread_mutex_lock(&(this->mutex));
+	iterator = this->connections->create_iterator(this->connections, TRUE);
+	while (iterator->iterate(iterator, (void **)&current))
+	{
+		if (strcmp(current->get_name(current), name) == 0)
+		{
+			/* remove connection from list, and destroy it */
+			iterator->remove(iterator);
+			current->destroy(current);
+			found = TRUE;
+			break;
+		}
+	}
+	iterator->destroy(iterator);
+	pthread_mutex_unlock(&(this->mutex));
+	if (found)
+	{
+		return SUCCESS;
+	}
+	return NOT_FOUND;
+}
+
+/**
+ * Implementation of connection_store_t.add_connection.
+ */
+static status_t add_connection(private_local_connection_store_t *this, connection_t *connection)
+{
+	pthread_mutex_lock(&(this->mutex));
+	this->connections->insert_last(this->connections, connection);
+	pthread_mutex_unlock(&(this->mutex));
+	return SUCCESS;
+}
+
+/**
+ * Implementation of connection_store_t.create_iterator.
+ */
+static iterator_t* create_iterator(private_local_connection_store_t *this)
+{
+	return this->connections->create_iterator_locked(this->connections,
+													 &this->mutex);
+}
+
+/**
+ * Implementation of connection_store_t.destroy.
+ */
+static void destroy (private_local_connection_store_t *this)
+{
+	pthread_mutex_lock(&(this->mutex));
+	this->connections->destroy_offset(this->connections, offsetof(connection_t, destroy));
+	pthread_mutex_unlock(&(this->mutex));
+	free(this);
+}
+
+/**
+ * Described in header.
+ */
+local_connection_store_t * local_connection_store_create(void)
+{
+	private_local_connection_store_t *this = malloc_thing(private_local_connection_store_t);
+
+	this->public.connection_store.get_connection_by_hosts = (connection_t*(*)(connection_store_t*,host_t*,host_t*))get_connection_by_hosts;
+	this->public.connection_store.get_connection_by_name = (connection_t*(*)(connection_store_t*,char*))get_connection_by_name;
+	this->public.connection_store.delete_connection = (status_t(*)(connection_store_t*,char*))delete_connection;
+	this->public.connection_store.add_connection = (status_t(*)(connection_store_t*,connection_t*))add_connection;
+	this->public.connection_store.create_iterator = (iterator_t*(*)(connection_store_t*))create_iterator;
+	this->public.connection_store.destroy = (void(*)(connection_store_t*))destroy;
+	
+	/* private variables */
+	this->connections = linked_list_create();
+	pthread_mutex_init(&(this->mutex), NULL);
+
+	return (&this->public);
+}