/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager -- Network link manager
 *
 * 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.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Copyright 2013 Red Hat, Inc.
 */

#include "config.h"

#include <string.h>

#include "nm-device-macvlan.h"
#include "nm-device-private.h"
#include "nm-default.h"
#include "nm-manager.h"
#include "nm-platform.h"
#include "nm-device-factory.h"

#include "nmdbus-device-macvlan.h"

#include "nm-device-logging.h"
_LOG_DECLARE_SELF(NMDeviceMacvlan);

G_DEFINE_TYPE (NMDeviceMacvlan, nm_device_macvlan, NM_TYPE_DEVICE_GENERIC)

#define NM_DEVICE_MACVLAN_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_MACVLAN, NMDeviceMacvlanPrivate))

typedef struct {
	int parent_ifindex;
	NMPlatformLnkMacvlan props;
} NMDeviceMacvlanPrivate;

enum {
	PROP_0,
	PROP_PARENT,
	PROP_MODE,
	PROP_NO_PROMISC,

	LAST_PROP
};

/**************************************************************/

/**************************************************************/

static const char *
macvlan_mode_to_string (guint mode)
{
	switch (mode) {
	case MACVLAN_MODE_PRIVATE:
		return "private";
	case MACVLAN_MODE_VEPA:
		return "vepa";
	case MACVLAN_MODE_BRIDGE:
		return "bridge";
	case MACVLAN_MODE_PASSTHRU:
		return "passthru";
	default:
		return "unknown";
	}
}

static void
update_properties (NMDevice *device)
{
	NMDeviceMacvlan *self = NM_DEVICE_MACVLAN (device);
	NMDeviceMacvlanPrivate *priv = NM_DEVICE_MACVLAN_GET_PRIVATE (device);
	GObject *object = G_OBJECT (device);
	const NMPlatformLnkMacvlan *props;
	const NMPlatformLink *plink;

	props = nm_platform_link_get_lnk_macvlan (NM_PLATFORM_GET, nm_device_get_ifindex (device), &plink);
	if (!props) {
		_LOGW (LOGD_HW, "could not get macvlan properties");
		return;
	}

	g_object_freeze_notify (object);

	if (priv->parent_ifindex != plink->parent)
		g_object_notify (object, NM_DEVICE_MACVLAN_PARENT);
	if (priv->props.mode != props->mode)
		g_object_notify (object, NM_DEVICE_MACVLAN_MODE);
	if (priv->props.no_promisc != props->no_promisc)
		g_object_notify (object, NM_DEVICE_MACVLAN_NO_PROMISC);

	priv->parent_ifindex = plink->parent;
	priv->props = *props;

	g_object_thaw_notify (object);
}

static void
link_changed (NMDevice *device, NMPlatformLink *info)
{
	NM_DEVICE_CLASS (nm_device_macvlan_parent_class)->link_changed (device, info);
	update_properties (device);
}

/**************************************************************/

static void
nm_device_macvlan_init (NMDeviceMacvlan *self)
{
}

static void
constructed (GObject *object)
{
	update_properties (NM_DEVICE (object));

	G_OBJECT_CLASS (nm_device_macvlan_parent_class)->constructed (object);
}

static void
get_property (GObject *object, guint prop_id,
              GValue *value, GParamSpec *pspec)
{
	NMDeviceMacvlanPrivate *priv = NM_DEVICE_MACVLAN_GET_PRIVATE (object);
	NMDevice *parent;

	switch (prop_id) {
	case PROP_PARENT:
		if (priv->parent_ifindex > 0)
			parent = nm_manager_get_device_by_ifindex (nm_manager_get (), priv->parent_ifindex);
		else
			parent = NULL;
		nm_utils_g_value_set_object_path (value, parent);
		break;
	case PROP_MODE:
		g_value_set_string (value, macvlan_mode_to_string (priv->props.mode));
		break;
	case PROP_NO_PROMISC:
		g_value_set_boolean (value, priv->props.no_promisc);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
		break;
	}
}

static void
nm_device_macvlan_class_init (NMDeviceMacvlanClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);
	NMDeviceClass *device_class = NM_DEVICE_CLASS (klass);

	g_type_class_add_private (klass, sizeof (NMDeviceMacvlanPrivate));

	NM_DEVICE_CLASS_DECLARE_TYPES (klass, NULL, NM_LINK_TYPE_MACVLAN, NM_LINK_TYPE_MACVTAP)

	object_class->constructed = constructed;
	object_class->get_property = get_property;

	device_class->link_changed = link_changed;

	/* properties */
	g_object_class_install_property
		(object_class, PROP_PARENT,
		 g_param_spec_string (NM_DEVICE_MACVLAN_PARENT, "", "",
		                      NULL,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	g_object_class_install_property
		(object_class, PROP_MODE,
		 g_param_spec_string (NM_DEVICE_MACVLAN_MODE, "", "",
		                      NULL,
		                      G_PARAM_READABLE |
		                      G_PARAM_STATIC_STRINGS));

	g_object_class_install_property
		(object_class, PROP_NO_PROMISC,
		 g_param_spec_boolean (NM_DEVICE_MACVLAN_NO_PROMISC, "", "",
		                       FALSE,
		                       G_PARAM_READABLE |
		                       G_PARAM_STATIC_STRINGS));

	nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (klass),
	                                        NMDBUS_TYPE_DEVICE_MACVLAN_SKELETON,
	                                        NULL);
}

/*************************************************************/

#define NM_TYPE_MACVLAN_FACTORY (nm_macvlan_factory_get_type ())
#define NM_MACVLAN_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_MACVLAN_FACTORY, NMMacvlanFactory))

static NMDevice *
create_device (NMDeviceFactory *factory,
               const char *iface,
               NMPlatformLink *plink,
               NMConnection *connection,
               gboolean *out_ignore)
{
	g_return_val_if_fail (plink, NULL);

	return (NMDevice *) g_object_new (NM_TYPE_DEVICE_MACVLAN,
	                                  NM_DEVICE_IFACE, iface,
	                                  NM_DEVICE_TYPE_DESC, "Macvlan",
	                                  NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_GENERIC,
	                                  NM_DEVICE_LINK_TYPE, plink->type,
	                                  NULL);
}

NM_DEVICE_FACTORY_DEFINE_INTERNAL (MACVLAN, Macvlan, macvlan,
	NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_MACVLAN, NM_LINK_TYPE_MACVTAP),
	factory_iface->create_device = create_device;
	)