From 3a05756b423411a8dfba6c68adc4c85cbf1ec353 Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Wed, 8 Aug 2012 14:04:14 +0200
Subject: An Android specific attribute handler installs DNS servers via
 Builder

---
 .../jni/libandroidbridge/backend/android_attr.c    | 120 +++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 src/frontends/android/jni/libandroidbridge/backend/android_attr.c

(limited to 'src/frontends/android/jni/libandroidbridge/backend/android_attr.c')

diff --git a/src/frontends/android/jni/libandroidbridge/backend/android_attr.c b/src/frontends/android/jni/libandroidbridge/backend/android_attr.c
new file mode 100644
index 000000000..e8c506950
--- /dev/null
+++ b/src/frontends/android/jni/libandroidbridge/backend/android_attr.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * Copyright (C) 2012 Giuliano Grassi
+ * Copyright (C) 2012 Ralf Sager
+ * 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 "android_attr.h"
+#include "../charonservice.h"
+
+#include <hydra.h>
+#include <debug.h>
+#include <library.h>
+
+typedef struct private_android_attr_t private_android_attr_t;
+
+/**
+ * Private data of an android_attr_t object.
+ */
+struct private_android_attr_t {
+
+	/**
+	 * Public interface.
+	 */
+	android_attr_t public;
+};
+
+METHOD(attribute_handler_t, handle, bool,
+	private_android_attr_t *this, identification_t *server,
+	configuration_attribute_type_t type, chunk_t data)
+{
+	vpnservice_builder_t *builder;
+	host_t *dns;
+
+	switch (type)
+	{
+		case INTERNAL_IP4_DNS:
+			dns = host_create_from_chunk(AF_INET, data, 0);
+			break;
+		default:
+			return FALSE;
+	}
+
+	if (!dns || dns->is_anyaddr(dns))
+	{
+		DESTROY_IF(dns);
+		return FALSE;
+	}
+
+	builder = charonservice->get_vpnservice_builder(charonservice);
+	builder->add_dns(builder, dns);
+	dns->destroy(dns);
+	return TRUE;
+}
+
+METHOD(attribute_handler_t, release, void,
+	private_android_attr_t *this, identification_t *server,
+	configuration_attribute_type_t type, chunk_t data)
+{
+	/* DNS servers cannot be removed from an existing TUN device */
+}
+
+METHOD(enumerator_t, enumerate_dns, bool,
+	enumerator_t *this, configuration_attribute_type_t *type, chunk_t *data)
+{
+	*type = INTERNAL_IP4_DNS;
+	*data = chunk_empty;
+	this->enumerate = (void*)return_false;
+	return TRUE;
+}
+
+METHOD(attribute_handler_t, create_attribute_enumerator, enumerator_t*,
+	private_android_attr_t *this, identification_t *server, host_t *vip)
+{
+	enumerator_t *enumerator;
+
+	INIT(enumerator,
+			.enumerate = (void*)_enumerate_dns,
+			.destroy = (void*)free,
+	);
+	return enumerator;
+}
+
+METHOD(android_attr_t, destroy, void,
+	private_android_attr_t *this)
+{
+	free(this);
+}
+
+/**
+ * Described in header
+ */
+android_attr_t *android_attr_create()
+{
+	private_android_attr_t *this;
+
+	INIT(this,
+		.public = {
+			.handler = {
+				.handle = _handle,
+				.release = _release,
+				.create_attribute_enumerator = _create_attribute_enumerator,
+			},
+			.destroy = _destroy,
+		},
+	);
+
+	return &this->public;
+}
+
-- 
cgit v1.2.3