added a dispatcher class to receive HA sync messages

simple attribute parser enumerator (probably needs a cleaner implementation)
2010-04-07 13:55:11 +02:00
parent 12ec91ba3a
commit 190edaf527
8 changed files with 422 additions and 13 deletions
@@ -0,0 +1,161 @@
+/*
+ * 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.
+ *
+ * $Id$
+ */
+
+#include "ha_sync_dispatcher.h"
+
+#include <daemon.h>
+#include <processing/jobs/callback_job.h>
+
+typedef struct private_ha_sync_dispatcher_t private_ha_sync_dispatcher_t;
+
+/**
+ * Private data of an ha_sync_dispatcher_t object.
+ */
+struct private_ha_sync_dispatcher_t {
+
+	/**
+	 * Public ha_sync_dispatcher_t interface.
+	 */
+	ha_sync_dispatcher_t public;
+
+	/**
+	 * socket to pull messages from
+	 */
+	ha_sync_socket_t *socket;
+
+	/**
+	 * Dispatcher job
+	 */
+	callback_job_t *job;
+};
+
+/**
+ * Process messages of type IKE_ADD
+ */
+static void process_ike_add(private_ha_sync_dispatcher_t *this,
+							ha_sync_message_t *message)
+{
+	ha_sync_message_attribute_t attribute;
+	ha_sync_message_value_t value;
+	enumerator_t *enumerator;
+
+	enumerator = message->create_attribute_enumerator(message);
+	while (enumerator->enumerate(enumerator, &attribute, &value))
+	{
+		switch (attribute)
+		{
+			/* ike_sa_id_t* */
+			case HA_SYNC_IKE_ID:
+			case HA_SYNC_IKE_REKEY_ID:
+				DBG1(DBG_IKE, " %d -> %llu:%llu %s", attribute,
+					 value.ike_sa_id->get_initiator_spi(value.ike_sa_id),
+					 value.ike_sa_id->get_responder_spi(value.ike_sa_id),
+					 value.ike_sa_id->is_initiator(value.ike_sa_id) ?
+						"initiator" : "responder");
+				break;
+			/* identification_t* */
+			case HA_SYNC_LOCAL_ID:
+			case HA_SYNC_REMOTE_ID:
+			case HA_SYNC_EAP_ID:
+				DBG1(DBG_IKE, " %d -> %D", attribute, value.id);
+				break;
+			/* host_t* */
+			case HA_SYNC_LOCAL_ADDR:
+			case HA_SYNC_REMOTE_ADDR:
+			case HA_SYNC_LOCAL_VIP:
+			case HA_SYNC_REMOTE_VIP:
+			case HA_SYNC_ADDITIONAL_ADDR:
+				DBG1(DBG_IKE, " %d -> %H", attribute, value.host);
+				break;
+			/* char* */
+			case HA_SYNC_CONFIG_NAME:
+				DBG1(DBG_IKE, " %d -> %s", attribute, value.str);
+				break;
+			/** u_int32_t */
+			case HA_SYNC_CONDITIONS:
+			case HA_SYNC_EXTENSIONS:
+				DBG1(DBG_IKE, " %d -> %lu", attribute, value.u32);
+				break;
+			/** chunk_t */
+			case HA_SYNC_NONCE_I:
+			case HA_SYNC_NONCE_R:
+			case HA_SYNC_SECRET:
+				DBG1(DBG_IKE, " %d -> %B", attribute, &value.chunk);
+				break;
+		}
+	}
+	enumerator->destroy(enumerator);
+}
+
+/**
+ * Dispatcher job function
+ */
+static job_requeue_t dispatch(private_ha_sync_dispatcher_t *this)
+{
+	ha_sync_message_t *message;
+
+	message = this->socket->pull(this->socket);
+	switch (message->get_type(message))
+	{
+		case HA_SYNC_IKE_ADD:
+			process_ike_add(this, message);
+			break;
+		case HA_SYNC_IKE_UPDATE:
+			break;
+		case HA_SYNC_IKE_DELETE:
+			break;
+		case HA_SYNC_IKE_REKEY:
+			break;
+		case HA_SYNC_CHILD_ADD:
+			break;
+		case HA_SYNC_CHILD_DELETE:
+			break;
+		default:
+			DBG1(DBG_CFG, "received unknown HA sync message type %d",
+				 message->get_type(message));
+			break;
+	}
+	message->destroy(message);
+
+	return JOB_REQUEUE_DIRECT;
+}
+
+/**
+ * Implementation of ha_sync_dispatcher_t.destroy.
+ */
+static void destroy(private_ha_sync_dispatcher_t *this)
+{
+	this->job->cancel(this->job);
+	free(this);
+}
+
+/**
+ * See header
+ */
+ha_sync_dispatcher_t *ha_sync_dispatcher_create(ha_sync_socket_t *socket)
+{
+	private_ha_sync_dispatcher_t *this = malloc_thing(private_ha_sync_dispatcher_t);
+
+	this->public.destroy = (void(*)(ha_sync_dispatcher_t*))destroy;
+
+	this->socket = socket;
+	this->job = callback_job_create((callback_job_cb_t)dispatch,
+									this, NULL, NULL);
+	charon->processor->queue_job(charon->processor, (job_t*)this->job);
+
+	return &this->public;
+}