Added a task stub to create and process IKEv1 informational exchanges

src/libcharon/Makefile.am

@@ -98,6 +98,7 @@ sa/tasks/ike_auth_lifetime.c sa/tasks/ike_auth_lifetime.h \
 sa/tasks/ike_vendor.c sa/tasks/ike_vendor.h \
 sa/tasks/ike_vendor_v1.c sa/tasks/ike_vendor_v1.h \
 sa/tasks/main_mode.c sa/tasks/main_mode.h \
+sa/tasks/informational.c sa/tasks/informational.h \
 sa/tasks/xauth.c sa/tasks/xauth.h \
 sa/tasks/quick_mode.c sa/tasks/quick_mode.h \
 sa/tasks/mode_config.c sa/tasks/mode_config.h \

src/libcharon/sa/tasks/informational.c

@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2011 Martin Willi
+ * Copyright (C) 2011 revosec AG
+ *
+ * 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 "informational.h"
+
+#include <daemon.h>
+
+typedef struct private_informational_t private_informational_t;
+
+/**
+ * Private members of a informational_t task.
+ */
+struct private_informational_t {
+
+	/**
+	 * Public methods and task_t interface.
+	 */
+	informational_t public;
+
+	/**
+	 * Assigned IKE_SA.
+	 */
+	ike_sa_t *ike_sa;
+
+	/**
+	 * Notify payload to send
+	 */
+	notify_payload_t *notify;
+};
+
+METHOD(task_t, build_i, status_t,
+	private_informational_t *this, message_t *message)
+{
+	message->add_payload(message, &this->notify->payload_interface);
+	this->notify = NULL;
+	return SUCCESS;
+}
+
+METHOD(task_t, process_r, status_t,
+	private_informational_t *this, message_t *message)
+{
+	return FAILED;
+}
+
+METHOD(task_t, build_r, status_t,
+	private_informational_t *this, message_t *message)
+{
+	return FAILED;
+}
+
+METHOD(task_t, process_i, status_t,
+	private_informational_t *this, message_t *message)
+{
+	return FAILED;
+}
+
+METHOD(task_t, get_type, task_type_t,
+	private_informational_t *this)
+{
+	return TASK_INFORMATIONAL;
+}
+
+METHOD(task_t, migrate, void,
+	private_informational_t *this, ike_sa_t *ike_sa)
+{
+	this->ike_sa = ike_sa;
+}
+
+METHOD(task_t, destroy, void,
+	private_informational_t *this)
+{
+	DESTROY_IF(this->notify);
+	free(this);
+}
+
+/*
+ * Described in header.
+ */
+informational_t *informational_create(ike_sa_t *ike_sa, notify_payload_t *notify)
+{
+	private_informational_t *this;
+
+	INIT(this,
+		.public = {
+			.task = {
+				.get_type = _get_type,
+				.migrate = _migrate,
+				.destroy = _destroy,
+			},
+		},
+		.ike_sa = ike_sa,
+		.notify = notify,
+	);
+
+	if (notify)
+	{
+		this->public.task.build = _build_i;
+		this->public.task.process = _process_i;
+	}
+	else
+	{
+		this->public.task.build = _build_r;
+		this->public.task.process = _process_r;
+	}
+
+	return &this->public;
+}

src/libcharon/sa/tasks/informational.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2011 Martin Willi
+ * Copyright (C) 2011 revosec AG
+ *
+ * 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 informational informational
+ * @{ @ingroup tasks
+ */
+
+#ifndef INFORMATIONAL_H_
+#define informational_H_
+
+typedef struct informational_t informational_t;
+
+#include <library.h>
+#include <sa/ike_sa.h>
+#include <sa/tasks/task.h>
+#include <encoding/payloads/notify_payload.h>
+
+/**
+ * IKEv1 informational exchange, negotiates errors.
+ */
+struct informational_t {
+
+	/**
+	 * Implements the task_t interface
+	 */
+	task_t task;
+};
+
+/**
+ * Create a new informational task.
+ *
+ * @param notify		notify to send as initiator, NULL if responder
+ * @return				task to handle by the task_manager
+ */
+informational_t *informational_create(ike_sa_t *ike_sa, notify_payload_t *notify);
+
+#endif /** INFORMATIONAL_H_ @}*/

src/libcharon/sa/tasks/task.c

@@ -36,6 +36,7 @@ ENUM(task_type_names, TASK_IKE_INIT, TASK_IKE_CERT_POST_V1,
 	"CHILD_DELETE",
 	"CHILD_REKEY",
 	"MAIN_MODE",
+	"INFORMATIONAL",
 	"XAUTH",
 	"MODE_CONFIG",
 	"QUICK_MODE",
@@ -63,6 +64,7 @@ ENUM(task_type_names, TASK_IKE_INIT, TASK_IKE_CERT_POST_V1,
 	"CHILD_DELETE",
 	"CHILD_REKEY",
 	"MAIN_MODE",
+	"INFORMATIONAL",
 	"XAUTH",
 	"MODE_CONFIG",
 	"QUICK_MODE",

src/libcharon/sa/tasks/task.h

@@ -71,6 +71,8 @@ enum task_type_t {
 	TASK_CHILD_REKEY,
 	/** IKEv1 main mode */
 	TASK_MAIN_MODE,
+	/** IKEv1 informational exchange */
+	TASK_INFORMATIONAL,
 	/** IKEv1 XAUTH authentication */
 	TASK_XAUTH,
 	/** IKEv1 Mode Config */