diff options
Diffstat (limited to 'src/devices/nm-device-wireguard.c')
| -rw-r--r-- | src/devices/nm-device-wireguard.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/devices/nm-device-wireguard.c b/src/devices/nm-device-wireguard.c new file mode 100644 index 00000000..62ec0274 --- /dev/null +++ b/src/devices/nm-device-wireguard.c @@ -0,0 +1,212 @@ +/* + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301 USA. + * + * Copyright 2018 Javier Arteaga <jarteaga@jbeta.is> + */ + +#include "nm-default.h" + +#include "nm-device-wireguard.h" + +#include "nm-device-private.h" +#include "platform/nm-platform.h" +#include "nm-device-factory.h" + +#include "nm-device-logging.h" +_LOG_DECLARE_SELF(NMDeviceWireGuard); + +/*****************************************************************************/ + +NM_GOBJECT_PROPERTIES_DEFINE (NMDeviceWireGuard, + PROP_PUBLIC_KEY, + PROP_LISTEN_PORT, + PROP_FWMARK, +); + +struct _NMDeviceWireGuard { + NMDevice parent; + NMPlatformLnkWireGuard props; +}; + +struct _NMDeviceWireGuardClass { + NMDeviceClass parent; +}; + +G_DEFINE_TYPE (NMDeviceWireGuard, nm_device_wireguard, NM_TYPE_DEVICE) + +/******************************************************************/ + +static GVariant * +get_public_key_as_variant (const NMDeviceWireGuard *self) +{ + return g_variant_new_fixed_array (G_VARIANT_TYPE_BYTE, + self->props.public_key, sizeof (self->props.public_key), 1); +} + +static void +update_properties (NMDevice *device) +{ + NMDeviceWireGuard *self; + const NMPlatformLink *plink; + const NMPlatformLnkWireGuard *props = NULL; + int ifindex; + + g_return_if_fail (NM_IS_DEVICE_WIREGUARD (device)); + self = NM_DEVICE_WIREGUARD (device); + + ifindex = nm_device_get_ifindex (device); + props = nm_platform_link_get_lnk_wireguard (nm_device_get_platform (device), ifindex, &plink); + if (!props) { + _LOGW (LOGD_PLATFORM, "could not get wireguard properties"); + return; + } + + g_object_freeze_notify (G_OBJECT (device)); + +#define CHECK_PROPERTY_CHANGED(field, prop) \ + G_STMT_START { \ + if (self->props.field != props->field) { \ + self->props.field = props->field; \ + _notify (self, prop); \ + } \ + } G_STMT_END + +#define CHECK_PROPERTY_CHANGED_ARRAY(field, prop) \ + G_STMT_START { \ + if (memcmp (&self->props.field, &props->field, sizeof (props->field)) != 0) { \ + memcpy (&self->props.field, &props->field, sizeof (props->field)); \ + _notify (self, prop); \ + } \ + } G_STMT_END + + CHECK_PROPERTY_CHANGED_ARRAY (public_key, PROP_PUBLIC_KEY); + CHECK_PROPERTY_CHANGED (listen_port, PROP_LISTEN_PORT); + CHECK_PROPERTY_CHANGED (fwmark, PROP_FWMARK); + + g_object_thaw_notify (G_OBJECT (device)); +} + +static void +link_changed (NMDevice *device, + const NMPlatformLink *pllink) +{ + NM_DEVICE_CLASS (nm_device_wireguard_parent_class)->link_changed (device, pllink); + update_properties (device); +} + + +/******************************************************************/ + +static void +get_property (GObject *object, guint prop_id, + GValue *value, GParamSpec *pspec) +{ + NMDeviceWireGuard *self = NM_DEVICE_WIREGUARD (object); + + switch (prop_id) { + case PROP_PUBLIC_KEY: + g_value_take_variant (value, get_public_key_as_variant (self)); + break; + case PROP_LISTEN_PORT: + g_value_set_uint (value, self->props.listen_port); + break; + case PROP_FWMARK: + g_value_set_uint (value, self->props.fwmark); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + +static void +nm_device_wireguard_init (NMDeviceWireGuard *self) +{ +} + +static const NMDBusInterfaceInfoExtended interface_info_device_wireguard = { + .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT ( + NM_DBUS_INTERFACE_DEVICE_WIREGUARD, + .properties = NM_DEFINE_GDBUS_PROPERTY_INFOS ( + NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE ("PublicKey", "ay", NM_DEVICE_WIREGUARD_PUBLIC_KEY), + NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE ("ListenPort", "q", NM_DEVICE_WIREGUARD_LISTEN_PORT), + NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE ("FwMark", "u", NM_DEVICE_WIREGUARD_FWMARK), + ), + ), +}; + +static void +nm_device_wireguard_class_init (NMDeviceWireGuardClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS (klass); + NMDeviceClass *device_class = NM_DEVICE_CLASS (klass); + + object_class->get_property = get_property; + + dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS (&interface_info_device_wireguard); + + device_class->connection_type_supported = NULL; + device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES (NM_LINK_TYPE_WIREGUARD); + + device_class->link_changed = link_changed; + + obj_properties[PROP_PUBLIC_KEY] = + g_param_spec_variant (NM_DEVICE_WIREGUARD_PUBLIC_KEY, + "", "", + G_VARIANT_TYPE ("ay"), + NULL, + G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); + + obj_properties[PROP_LISTEN_PORT] = + g_param_spec_uint (NM_DEVICE_WIREGUARD_LISTEN_PORT, + "", "", + 0, G_MAXUINT16, 0, + G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); + + obj_properties[PROP_FWMARK] = + g_param_spec_uint (NM_DEVICE_WIREGUARD_FWMARK, + "", "", + 0, G_MAXUINT32, 0, + G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); + + g_object_class_install_properties (object_class, _PROPERTY_ENUMS_LAST, obj_properties); +} + +/*************************************************************/ + +#define NM_TYPE_WIREGUARD_DEVICE_FACTORY (nm_wireguard_device_factory_get_type ()) +#define NM_WIREGUARD_DEVICE_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_WIREGUARD_DEVICE_FACTORY, NMWireGuardDeviceFactory)) + +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_WIREGUARD, + NM_DEVICE_IFACE, iface, + NM_DEVICE_TYPE_DESC, "WireGuard", + NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_WIREGUARD, + NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_WIREGUARD, + NULL); +} + +NM_DEVICE_FACTORY_DEFINE_INTERNAL (WIREGUARD, WireGuard, wireguard, + NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_WIREGUARD), + factory_class->create_device = create_device; +) |