/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2018 Lubomir Rintel */ #include "src/core/nm-default-daemon.h" #include "nm-manager.h" #include "nm-device-wpan.h" #include #include #include #include "nm-act-request.h" #include "nm-device-private.h" #include "libnm-platform/nm-platform.h" #include "nm-device-factory.h" #include "nm-setting-wpan.h" #include "libnm-core-aux-intern/nm-libnm-core-utils.h" #include "libnm-core-intern/nm-core-internal.h" #define _NMLOG_DEVICE_TYPE NMDeviceWpan #include "nm-device-logging.h" /*****************************************************************************/ struct _NMDeviceWpan { NMDevice parent; }; struct _NMDeviceWpanClass { NMDeviceClass parent; }; G_DEFINE_TYPE(NMDeviceWpan, nm_device_wpan, NM_TYPE_DEVICE) /*****************************************************************************/ static gboolean complete_connection(NMDevice *device, NMConnection *connection, const char *specific_object, NMConnection *const *existing_connections, GError **error) { NMSettingWpan *s_wpan; nm_utils_complete_generic(nm_device_get_platform(device), connection, NM_SETTING_WPAN_SETTING_NAME, existing_connections, NULL, _("WPAN connection"), NULL, NULL, TRUE); s_wpan = NM_SETTING_WPAN(nm_connection_get_setting(connection, NM_TYPE_SETTING_WPAN)); if (!s_wpan) { g_set_error_literal(error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INVALID_CONNECTION, "A 'wpan' setting is required."); return FALSE; } return TRUE; } static void update_connection(NMDevice *device, NMConnection *connection) { _nm_connection_ensure_setting(connection, NM_TYPE_SETTING_WPAN); } static gboolean check_connection_compatible(NMDevice *device, NMConnection *connection, gboolean check_properties, GError **error) { NMSettingWpan *s_wpan; const char *mac, *hw_addr; if (!NM_DEVICE_CLASS(nm_device_wpan_parent_class) ->check_connection_compatible(device, connection, check_properties, error)) return FALSE; s_wpan = NM_SETTING_WPAN(nm_connection_get_setting(connection, NM_TYPE_SETTING_WPAN)); mac = nm_setting_wpan_get_mac_address(s_wpan); if (mac) { hw_addr = nm_device_get_hw_address(device); if (!nm_utils_hwaddr_matches(mac, -1, hw_addr, -1)) { nm_utils_error_set_literal(error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY, "MAC address mismatches"); return FALSE; } } return TRUE; } static NMActStageReturn act_stage1_prepare(NMDevice *device, NMDeviceStateReason *out_failure_reason) { NMDeviceWpan *self = NM_DEVICE_WPAN(device); NMSettingWpan *s_wpan; NMPlatform *platform; guint16 pan_id; guint16 short_address; gint16 page, channel; int ifindex; const guint8 *hwaddr; gsize hwaddr_len = 0; const NMPlatformLink *lowpan_plink; NMDevice *lowpan_device = NULL; NMActStageReturn ret = NM_ACT_STAGE_RETURN_FAILURE; platform = nm_device_get_platform(device); nm_assert(NM_IS_PLATFORM(platform)); ifindex = nm_device_get_ifindex(device); g_return_val_if_fail(ifindex > 0, NM_ACT_STAGE_RETURN_FAILURE); s_wpan = nm_device_get_applied_setting(device, NM_TYPE_SETTING_WPAN); g_return_val_if_fail(s_wpan, NM_ACT_STAGE_RETURN_FAILURE); hwaddr = nm_platform_link_get_address(platform, ifindex, &hwaddr_len); if (!hwaddr) { *out_failure_reason = NM_DEVICE_STATE_REASON_CONFIG_FAILED; return NM_ACT_STAGE_RETURN_FAILURE; } /* As of kernel 4.16, the 6LoWPAN devices layered on top of WPANs * need to be DOWN as well as the WPAN device itself in order to * modify the WPAN properties. */ lowpan_plink = nm_platform_link_get_by_address(platform, NM_LINK_TYPE_6LOWPAN, hwaddr, hwaddr_len); if (lowpan_plink && NM_FLAGS_HAS(lowpan_plink->n_ifi_flags, IFF_UP)) { lowpan_device = nm_manager_get_device_by_ifindex(NM_MANAGER_GET, lowpan_plink->ifindex); } if (lowpan_device) nm_device_take_down(lowpan_device, TRUE); nm_device_take_down(device, TRUE); pan_id = nm_setting_wpan_get_pan_id(s_wpan); if (pan_id != G_MAXUINT16) { if (!nm_platform_wpan_set_pan_id(platform, ifindex, pan_id)) { _LOGW(LOGD_DEVICE, "unable to set the PAN ID"); goto out; } } short_address = nm_setting_wpan_get_short_address(s_wpan); if (short_address != G_MAXUINT16) { if (!nm_platform_wpan_set_short_addr(platform, ifindex, short_address)) { _LOGW(LOGD_DEVICE, "unable to set the short address"); goto out; } } channel = nm_setting_wpan_get_channel(s_wpan); if (channel != NM_SETTING_WPAN_CHANNEL_DEFAULT) { page = nm_setting_wpan_get_page(s_wpan); if (!nm_platform_wpan_set_channel(platform, ifindex, page, channel)) { _LOGW(LOGD_DEVICE, "unable to set the channel"); goto out; } } ret = NM_ACT_STAGE_RETURN_SUCCESS; out: nm_device_bring_up(device); if (lowpan_device) nm_device_bring_up(lowpan_device); return ret; } /*****************************************************************************/ static void nm_device_wpan_init(NMDeviceWpan *self) {} static const NMDBusInterfaceInfoExtended interface_info_device_wpan = { .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT( NM_DBUS_INTERFACE_DEVICE_WPAN, .properties = NM_DEFINE_GDBUS_PROPERTY_INFOS( NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE( "HwAddress", "s", NM_DEVICE_HW_ADDRESS, .annotations = NM_GDBUS_ANNOTATION_INFO_LIST_DEPRECATED(), ), ), ), }; static void nm_device_wpan_class_init(NMDeviceWpanClass *klass) { NMDeviceClass *device_class = NM_DEVICE_CLASS(klass); NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS(klass); dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS(&interface_info_device_wpan); device_class->connection_type_supported = NM_SETTING_WPAN_SETTING_NAME; device_class->connection_type_check_compatible = NM_SETTING_WPAN_SETTING_NAME; device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES(NM_LINK_TYPE_WPAN); device_class->complete_connection = complete_connection; device_class->check_connection_compatible = check_connection_compatible; device_class->update_connection = update_connection; device_class->act_stage1_prepare = act_stage1_prepare; } /*****************************************************************************/ #define NM_TYPE_WPAN_DEVICE_FACTORY (nm_wpan_device_factory_get_type()) #define NM_WPAN_DEVICE_FACTORY(obj) \ (_NM_G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_WPAN_DEVICE_FACTORY, NMWpanDeviceFactory)) static NMDevice * create_device(NMDeviceFactory *factory, const char *iface, const NMPlatformLink *plink, NMConnection *connection, gboolean *out_ignore) { return g_object_new(NM_TYPE_DEVICE_WPAN, NM_DEVICE_IFACE, iface, NM_DEVICE_TYPE_DESC, "WPAN", NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_WPAN, NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_WPAN, NULL); } NM_DEVICE_FACTORY_DEFINE_INTERNAL( WPAN, Wpan, wpan, NM_DEVICE_FACTORY_DECLARE_LINK_TYPES(NM_LINK_TYPE_WPAN) NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES(NM_SETTING_WPAN_SETTING_NAME), factory_class->create_device = create_device;);