diff options
Diffstat (limited to 'src/core/devices/nm-device-wpan.c')
| -rw-r--r-- | src/core/devices/nm-device-wpan.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/src/core/devices/nm-device-wpan.c b/src/core/devices/nm-device-wpan.c new file mode 100644 index 00000000..2f3b16ff --- /dev/null +++ b/src/core/devices/nm-device-wpan.c @@ -0,0 +1,257 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2018 Lubomir Rintel <lkundrak@v3.sk> + */ + +#include "src/core/nm-default-daemon.h" + +#include "nm-manager.h" +#include "nm-device-wpan.h" + +#include <stdlib.h> +#include <sys/types.h> +#include <linux/if.h> + +#include "nm-act-request.h" +#include "nm-device-private.h" +#include "nm-ip4-config.h" +#include "platform/nm-platform.h" +#include "nm-device-factory.h" +#include "nm-setting-wpan.h" +#include "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) +{ + NMSettingWpan *s_wpan = + NM_SETTING_WPAN(nm_connection_get_setting(connection, NM_TYPE_SETTING_WPAN)); + + if (!s_wpan) { + s_wpan = (NMSettingWpan *) nm_setting_wpan_new(); + nm_connection_add_setting(connection, (NMSetting *) s_wpan); + } +} + +static gboolean +check_connection_compatible(NMDevice *device, NMConnection *connection, GError **error) +{ + NMSettingWpan *s_wpan; + const char * mac, *hw_addr; + + if (!NM_DEVICE_CLASS(nm_device_wpan_parent_class) + ->check_connection_compatible(device, connection, 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, TRUE, NULL); + + if (lowpan_device) + nm_device_bring_up(lowpan_device, TRUE, NULL); + + 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), ), ), +}; + +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) \ + (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;); |