// SPDX-License-Identifier: LGPL-2.1+

/*

 * Copyright (C) 2019 Red Hat, Inc.

 */

#include "nm-default.h"

#include "nm-setting-wifi-p2p.h"

#include <net/ethernet.h>

#include "nm-utils.h"

#include "nm-libnm-core-intern/nm-common-macros.h"

#include "nm-utils-private.h"

#include "nm-setting-private.h"

/**

 * SECTION:nm-setting-wifi-p2p

 * @short_description: Describes connection properties for 802.11 Wi-Fi P2P networks

 *

 * The #NMSettingWifiP2P object is a #NMSetting subclass that describes properties

 * necessary for connection to 802.11 Wi-Fi P2P networks (aka Wi-Fi Direct).

 **/

/**

 * NMSettingWifiP2P:

 *

 * Wi-Fi P2P Settings

 *

 * Since: 1.16

 */

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

NM_GOBJECT_PROPERTIES_DEFINE_BASE (

	PROP_PEER,

	PROP_WPS_METHOD,

	PROP_WFD_IES,

);

typedef struct {

	char *peer_mac_address;

	GBytes *wfd_ies;

	NMSettingWirelessSecurityWpsMethod wps_method;

} NMSettingWifiP2PPrivate;

struct _NMSettingWifiP2P {

	NMSetting parent;

	NMSettingWifiP2PPrivate _priv;

};

struct _NMSettingWifiP2PClass {

	NMSettingClass parent;

};

G_DEFINE_TYPE (NMSettingWifiP2P, nm_setting_wifi_p2p, NM_TYPE_SETTING)

#define NM_SETTING_WIFI_P2P_GET_PRIVATE(self) _NM_GET_PRIVATE (self, NMSettingWifiP2P, NM_IS_SETTING_WIFI_P2P, NMSetting)

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

/**

 * nm_setting_wifi_p2p_get_peer:

 * @setting: the #NMSettingWifiP2P

 *

 * Returns: the #NMSettingWifiP2P:peer property of the setting

 *

 * Since: 1.16

 **/

const char *

nm_setting_wifi_p2p_get_peer (NMSettingWifiP2P *setting)

{

	g_return_val_if_fail (NM_IS_SETTING_WIFI_P2P (setting), NULL);

	return NM_SETTING_WIFI_P2P_GET_PRIVATE (setting)->peer_mac_address;

}

/**

 * nm_setting_wifi_p2p_get_wps_method:

 * @setting: the #NMSettingWifiP2P

 *

 * Returns: the #NMSettingWifiP2P:wps-method property of the setting

 *

 * Since: 1.16

 **/

NMSettingWirelessSecurityWpsMethod

nm_setting_wifi_p2p_get_wps_method (NMSettingWifiP2P *setting)

{

	g_return_val_if_fail (NM_IS_SETTING_WIFI_P2P (setting), NM_SETTING_WIRELESS_SECURITY_WPS_METHOD_DEFAULT);

	return NM_SETTING_WIFI_P2P_GET_PRIVATE (setting)->wps_method;

}

/**

 * nm_setting_wifi_p2p_get_wfd_ies:

 * @setting: the #NMSettingWiFiP2P

 *

 * Returns: (transfer none): the #NMSettingWiFiP2P:wfd-ies property of the setting

 *

 * Since: 1.16

 **/

GBytes *

nm_setting_wifi_p2p_get_wfd_ies (NMSettingWifiP2P *setting)

{

	g_return_val_if_fail (NM_IS_SETTING_WIFI_P2P (setting), NULL);

	return NM_SETTING_WIFI_P2P_GET_PRIVATE (setting)->wfd_ies;

}

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

static gboolean

verify (NMSetting *setting, NMConnection *connection, GError **error)

{

	NMSettingWifiP2PPrivate *priv = NM_SETTING_WIFI_P2P_GET_PRIVATE (setting);

	if (!priv->peer_mac_address) {

		g_set_error_literal (error,

		                     NM_CONNECTION_ERROR,

		                     NM_CONNECTION_ERROR_MISSING_PROPERTY,

		                     _("property is missing"));

		g_prefix_error (error, "%s.%s: ", NM_SETTING_WIFI_P2P_SETTING_NAME, NM_SETTING_WIFI_P2P_PEER);

		return FALSE;

	}

	if (!nm_utils_hwaddr_valid (priv->peer_mac_address, ETH_ALEN)) {

		g_set_error_literal (error,

		                     NM_CONNECTION_ERROR,

		                     NM_CONNECTION_ERROR_INVALID_PROPERTY,

		                     _("property is invalid"));

		g_prefix_error (error, "%s.%s: ", NM_SETTING_WIFI_P2P_SETTING_NAME, NM_SETTING_WIFI_P2P_PEER);

		return FALSE;

	}

	if (!_nm_utils_wps_method_validate (priv->wps_method,

	                                    NM_SETTING_WIFI_P2P_SETTING_NAME,

	                                    NM_SETTING_WIFI_P2P_WPS_METHOD,

	                                    TRUE,

	                                    error))

		return FALSE;

	return TRUE;

}

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

static void

get_property (GObject *object, guint prop_id,

              GValue *value, GParamSpec *pspec)

{

	NMSettingWifiP2P *setting = NM_SETTING_WIFI_P2P (object);

	switch (prop_id) {

	case PROP_PEER:

		g_value_set_string (value, nm_setting_wifi_p2p_get_peer (setting));

		break;

	case PROP_WPS_METHOD:

		g_value_set_uint (value, nm_setting_wifi_p2p_get_wps_method (setting));

		break;

	case PROP_WFD_IES:

		g_value_set_boxed (value, nm_setting_wifi_p2p_get_wfd_ies (setting));

		break;

	default:

		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

		break;

	}

}

static void

set_property (GObject *object, guint prop_id,

              const GValue *value, GParamSpec *pspec)

{

	NMSettingWifiP2PPrivate *priv = NM_SETTING_WIFI_P2P_GET_PRIVATE (object);

	switch (prop_id) {

	case PROP_PEER:

		g_free (priv->peer_mac_address);

		priv->peer_mac_address = _nm_utils_hwaddr_canonical_or_invalid (g_value_get_string (value),

		                                                                ETH_ALEN);

		break;

	case PROP_WPS_METHOD:

		priv->wps_method = g_value_get_uint (value);

		break;

	case PROP_WFD_IES:

		nm_clear_pointer (&priv->wfd_ies, g_bytes_unref);

		priv->wfd_ies = g_value_dup_boxed (value);

		break;

	default:

		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);

		break;

	}

}

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

static void

nm_setting_wifi_p2p_init (NMSettingWifiP2P *setting)

{

}

/**

 * nm_setting_wifi_p2p_new:

 *

 * Creates a new #NMSettingWifiP2P object with default values.

 *

 * Returns: (transfer full): the new empty #NMSettingWifiP2P object

 *

 * Since: 1.16

 **/

NMSetting *

nm_setting_wifi_p2p_new (void)

{

	return g_object_new (NM_TYPE_SETTING_WIFI_P2P, NULL);

}

static void

finalize (GObject *object)

{

	NMSettingWifiP2PPrivate *priv = NM_SETTING_WIFI_P2P_GET_PRIVATE (object);

	g_free (priv->peer_mac_address);

	g_bytes_unref (priv->wfd_ies);

	G_OBJECT_CLASS (nm_setting_wifi_p2p_parent_class)->finalize (object);

}

static void

nm_setting_wifi_p2p_class_init (NMSettingWifiP2PClass *setting_wifi_p2p_class)

{

	GObjectClass *object_class = G_OBJECT_CLASS (setting_wifi_p2p_class);

	NMSettingClass *setting_class = NM_SETTING_CLASS (setting_wifi_p2p_class);

	object_class->get_property = get_property;

	object_class->set_property = set_property;

	object_class->finalize     = finalize;

	setting_class->verify      = verify;

	/**

	 * NMSettingWifiP2P:peer:

	 *

	 * The P2P device that should be connected to. Currently this is the only

	 * way to create or join a group.

	 *

	 * Since: 1.16

	 */

	/* ---keyfile---

	 * property: peer

	 * format: usual hex-digits-and-colons notation

	 * description: MAC address in traditional hex-digits-and-colons notation

	 *   (e.g. 00:22:68:12:79:A2), or semicolon separated list of 6 bytes (obsolete)

	 *   (e.g. 0;34;104;18;121;162).

	 * ---end---

	 */

	obj_properties[PROP_PEER] =

	    g_param_spec_string (NM_SETTING_WIFI_P2P_PEER, "", "",

	                         NULL,

	                         G_PARAM_READWRITE |

	                         G_PARAM_STATIC_STRINGS);

	/**

	 * NMSettingWifiP2P:wps-method:

	 *

	 * Flags indicating which mode of WPS is to be used.

	 *

	 * There's little point in changing the default setting as NetworkManager will

	 * automatically determine the best method to use.

	 *

	 * Since: 1.16

	 */

	obj_properties[PROP_WPS_METHOD] =

	    g_param_spec_uint (NM_SETTING_WIFI_P2P_WPS_METHOD, "", "",

	                       0,

	                       G_MAXUINT32,

	                       NM_SETTING_WIRELESS_SECURITY_WPS_METHOD_DEFAULT,

	                       G_PARAM_READWRITE |

	                       NM_SETTING_PARAM_FUZZY_IGNORE |

	                       G_PARAM_STATIC_STRINGS);

	/**

	 * NMSettingWifiP2P:wfd-ies:

	 *

	 * The Wi-Fi Display (WFD) Information Elements (IEs) to set.

	 *

	 * Wi-Fi Display requires a protocol specific information element to be

	 * set in certain Wi-Fi frames. These can be specified here for the

	 * purpose of establishing a connection.

	 * This setting is only useful when implementing a Wi-Fi Display client.

	 *

	 * Since: 1.16

	 */

	obj_properties[PROP_WFD_IES] =

	    g_param_spec_boxed (NM_SETTING_WIFI_P2P_WFD_IES, "", "",

	                        G_TYPE_BYTES,

	                        G_PARAM_READWRITE |

	                        NM_SETTING_PARAM_FUZZY_IGNORE |

	                        G_PARAM_STATIC_STRINGS);

	g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties);

	_nm_setting_class_commit (setting_class, NM_META_SETTING_TYPE_WIFI_P2P);

}