diff options
Diffstat (limited to 'src/devices/nm-device-wpan.c')
| -rw-r--r-- | src/devices/nm-device-wpan.c | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/src/devices/nm-device-wpan.c b/src/devices/nm-device-wpan.c new file mode 100644 index 00000000..dd2ebac1 --- /dev/null +++ b/src/devices/nm-device-wpan.c @@ -0,0 +1,253 @@ +/* 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 2018 Lubomir Rintel <lkundrak@v3.sk> + */ + +#include "nm-default.h" + +#include "nm-manager.h" +#include "nm-device-wpan.h" + +#include <stdlib.h> +#include <string.h> +#include <sys/types.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" + +#include "nm-device-logging.h" +_LOG_DECLARE_SELF(NMDeviceWpan); + +/*****************************************************************************/ + +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, + TRUE); + + s_wpan = nm_connection_get_setting_wpan (connection); + 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_connection_get_setting_wpan (connection); + + 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_connection_get_setting_wpan (connection); + + 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); + NMConnection *connection; + NMSettingWpan *s_wpan; + NMPlatform *platform; + guint16 pan_id; + guint16 short_address; + int ifindex; + const guint8 *hwaddr; + gsize hwaddr_len = 0; + const NMPlatformLink *lowpan_plink; + NMDevice *lowpan_device = NULL; + NMActStageReturn ret = NM_ACT_STAGE_RETURN_FAILURE; + + ret = NM_DEVICE_CLASS (nm_device_wpan_parent_class)->act_stage1_prepare (device, out_failure_reason); + if (ret != NM_ACT_STAGE_RETURN_SUCCESS) + return ret; + + platform = nm_device_get_platform (device); + g_return_val_if_fail (platform, NM_ACT_STAGE_RETURN_FAILURE); + + ifindex = nm_device_get_ifindex (device); + g_return_val_if_fail (ifindex > 0, NM_ACT_STAGE_RETURN_FAILURE); + + connection = nm_device_get_applied_connection (device); + g_return_val_if_fail (connection, NM_ACT_STAGE_RETURN_FAILURE); + + s_wpan = nm_connection_get_setting_wpan (connection); + g_return_val_if_fail (s_wpan, NM_ACT_STAGE_RETURN_FAILURE); + + hwaddr = nm_platform_link_get_address (platform, ifindex, &hwaddr_len); + g_return_val_if_fail (hwaddr, 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; + } + } + + 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 (NMDevice *) 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; +); |