/* SPDX-License-Identifier: LGPL-2.1+ */ /* * Copyright (C) 2015 Red Hat, Inc. */ #include "nm-default.h" #include "nm-device-tun.h" #include #include "nm-setting-connection.h" #include "nm-setting-tun.h" #include "nm-utils.h" #include "nm-object-private.h" /*****************************************************************************/ NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_MODE, PROP_OWNER, PROP_GROUP, PROP_NO_PI, PROP_VNET_HDR, PROP_MULTI_QUEUE, ); typedef struct { char * mode; gint64 owner; gint64 group; bool no_pi; bool vnet_hdr; bool multi_queue; } NMDeviceTunPrivate; struct _NMDeviceTun { NMDevice parent; NMDeviceTunPrivate _priv; }; struct _NMDeviceTunClass { NMDeviceClass parent; }; G_DEFINE_TYPE(NMDeviceTun, nm_device_tun, NM_TYPE_DEVICE) #define NM_DEVICE_TUN_GET_PRIVATE(self) \ _NM_GET_PRIVATE(self, NMDeviceTun, NM_IS_DEVICE_TUN, NMObject, NMDevice) /*****************************************************************************/ /** * nm_device_tun_get_hw_address: (skip) * @device: a #NMDeviceTun * * Gets the hardware (MAC) address of the #NMDeviceTun * * Returns: the hardware address. This is the internal string used by the * device, and must not be modified. * * Since: 1.2 * * Deprecated: 1.24: Use nm_device_get_hw_address() instead. **/ const char * nm_device_tun_get_hw_address(NMDeviceTun *device) { g_return_val_if_fail(NM_IS_DEVICE_TUN(device), NULL); return nm_device_get_hw_address(NM_DEVICE(device)); } /** * nm_device_tun_get_mode: * @device: a #NMDeviceTun * * Returns the TUN/TAP mode for the device. * * Returns: 'tun' or 'tap' * * Since: 1.2 **/ const char * nm_device_tun_get_mode(NMDeviceTun *device) { g_return_val_if_fail(NM_IS_DEVICE_TUN(device), NULL); return _nml_coerce_property_str_not_empty(NM_DEVICE_TUN_GET_PRIVATE(device)->mode); } /** * nm_device_tun_get_owner: * @device: a #NMDeviceTun * * Gets the tunnel owner. * * Returns: the uid of the tunnel owner, or -1 if it has no owner. * * Since: 1.2 **/ gint64 nm_device_tun_get_owner(NMDeviceTun *device) { g_return_val_if_fail(NM_IS_DEVICE_TUN(device), -1); return NM_DEVICE_TUN_GET_PRIVATE(device)->owner; } /** * nm_device_tun_get_group: * @device: a #NMDeviceTun * * Gets the tunnel group. * * Returns: the gid of the tunnel group, or -1 if it has no owner. * * Since: 1.2 **/ gint64 nm_device_tun_get_group(NMDeviceTun *device) { g_return_val_if_fail(NM_IS_DEVICE_TUN(device), -1); return NM_DEVICE_TUN_GET_PRIVATE(device)->group; } /** * nm_device_tun_get_pi: * @device: a #NMDeviceTun * * Returns whether the #NMDeviceTun has the IFF_NO_PI flag. * * Returns: %TRUE if the device has the flag, %FALSE otherwise * * Since: 1.2 **/ gboolean nm_device_tun_get_no_pi(NMDeviceTun *device) { g_return_val_if_fail(NM_IS_DEVICE_TUN(device), FALSE); return NM_DEVICE_TUN_GET_PRIVATE(device)->no_pi; } /** * nm_device_tun_get_vnet_hdr: * @device: a #NMDeviceTun * * Returns whether the #NMDeviceTun has the IFF_VNET_HDR flag. * * Returns: %TRUE if the device has the flag, %FALSE otherwise * * Since: 1.2 **/ gboolean nm_device_tun_get_vnet_hdr(NMDeviceTun *device) { g_return_val_if_fail(NM_IS_DEVICE_TUN(device), FALSE); return NM_DEVICE_TUN_GET_PRIVATE(device)->vnet_hdr; } /** * nm_device_tun_get_multi_queue: * @device: a #NMDeviceTun * * Returns whether the #NMDeviceTun has the IFF_MULTI_QUEUE flag. * * Returns: %TRUE if the device doesn't have the flag, %FALSE otherwise * * Since: 1.2 **/ gboolean nm_device_tun_get_multi_queue(NMDeviceTun *device) { g_return_val_if_fail(NM_IS_DEVICE_TUN(device), FALSE); return NM_DEVICE_TUN_GET_PRIVATE(device)->multi_queue; } static int tun_mode_from_string(const char *string) { if (!g_strcmp0(string, "tap")) return NM_SETTING_TUN_MODE_TAP; else return NM_SETTING_TUN_MODE_TUN; } static gboolean connection_compatible(NMDevice *device, NMConnection *connection, GError **error) { NMDeviceTunPrivate *priv = NM_DEVICE_TUN_GET_PRIVATE(device); NMSettingTunMode mode; NMSettingTun * s_tun; if (!NM_DEVICE_CLASS(nm_device_tun_parent_class) ->connection_compatible(device, connection, error)) return FALSE; if (!nm_connection_is_type(connection, NM_SETTING_TUN_SETTING_NAME)) { g_set_error_literal(error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION, _("The connection was not a tun connection.")); return FALSE; } s_tun = nm_connection_get_setting_tun(connection); mode = tun_mode_from_string(priv->mode); if (s_tun && mode != nm_setting_tun_get_mode(s_tun)) { g_set_error_literal(error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION, _("The mode of the device and the connection didn't match")); return FALSE; } return TRUE; } static GType get_setting_type(NMDevice *device) { return NM_TYPE_SETTING_TUN; } /*****************************************************************************/ static void nm_device_tun_init(NMDeviceTun *device) {} static void finalize(GObject *object) { NMDeviceTunPrivate *priv = NM_DEVICE_TUN_GET_PRIVATE(object); g_free(priv->mode); G_OBJECT_CLASS(nm_device_tun_parent_class)->finalize(object); } static void get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { NMDeviceTun *device = NM_DEVICE_TUN(object); switch (prop_id) { case PROP_MODE: g_value_set_string(value, nm_device_tun_get_mode(device)); break; case PROP_OWNER: g_value_set_int64(value, nm_device_tun_get_owner(device)); break; case PROP_GROUP: g_value_set_int64(value, nm_device_tun_get_group(device)); break; case PROP_NO_PI: g_value_set_boolean(value, nm_device_tun_get_no_pi(device)); break; case PROP_VNET_HDR: g_value_set_boolean(value, nm_device_tun_get_vnet_hdr(device)); break; case PROP_MULTI_QUEUE: g_value_set_boolean(value, nm_device_tun_get_multi_queue(device)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec); break; } } const NMLDBusMetaIface _nml_dbus_meta_iface_nm_device_tun = NML_DBUS_META_IFACE_INIT_PROP( NM_DBUS_INTERFACE_DEVICE_TUN, nm_device_tun_get_type, NML_DBUS_META_INTERFACE_PRIO_INSTANTIATE_HIGH, NML_DBUS_META_IFACE_DBUS_PROPERTIES( NML_DBUS_META_PROPERTY_INIT_X("Group", PROP_GROUP, NMDeviceTun, _priv.group), NML_DBUS_META_PROPERTY_INIT_FCN("HwAddress", 0, "s", _nm_device_notify_update_prop_hw_address), NML_DBUS_META_PROPERTY_INIT_S("Mode", PROP_MODE, NMDeviceTun, _priv.mode), NML_DBUS_META_PROPERTY_INIT_B("MultiQueue", PROP_MULTI_QUEUE, NMDeviceTun, _priv.multi_queue), NML_DBUS_META_PROPERTY_INIT_B("NoPi", PROP_NO_PI, NMDeviceTun, _priv.no_pi), NML_DBUS_META_PROPERTY_INIT_X("Owner", PROP_OWNER, NMDeviceTun, _priv.owner), NML_DBUS_META_PROPERTY_INIT_B("VnetHdr", PROP_VNET_HDR, NMDeviceTun, _priv.vnet_hdr), ), ); static void nm_device_tun_class_init(NMDeviceTunClass *gre_class) { GObjectClass * object_class = G_OBJECT_CLASS(gre_class); NMDeviceClass *device_class = NM_DEVICE_CLASS(gre_class); object_class->get_property = get_property; object_class->finalize = finalize; device_class->connection_compatible = connection_compatible; device_class->get_setting_type = get_setting_type; /** * NMDeviceTun:mode: * * The tunnel mode, either "tun" or "tap". * * Since: 1.2 **/ obj_properties[PROP_MODE] = g_param_spec_string(NM_DEVICE_TUN_MODE, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); /** * NMDeviceTun:owner: * * The uid of the tunnel owner, or -1 if it has no owner. * * Since: 1.2 **/ obj_properties[PROP_OWNER] = g_param_spec_int64(NM_DEVICE_TUN_OWNER, "", "", -1, G_MAXUINT32, -1, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); /** * NMDeviceTun:group: * * The gid of the tunnel group, or -1 if it has no owner. * * Since: 1.2 **/ obj_properties[PROP_GROUP] = g_param_spec_int64(NM_DEVICE_TUN_GROUP, "", "", -1, G_MAXUINT32, -1, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); /** * NMDeviceTun:no-pi: * * The tunnel's "TUN_NO_PI" flag; true if no protocol info is * prepended to the tunnel packets. * * Since: 1.2 **/ obj_properties[PROP_NO_PI] = g_param_spec_boolean(NM_DEVICE_TUN_NO_PI, "", "", FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); /** * NMDeviceTun:vnet-hdr: * * The tunnel's "TUN_VNET_HDR" flag; true if the tunnel packets * include a virtio network header. * * Since: 1.2 **/ obj_properties[PROP_VNET_HDR] = g_param_spec_boolean(NM_DEVICE_TUN_VNET_HDR, "", "", FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); /** * NMDeviceTun:multi-queue: * * The tunnel's "TUN_TAP_MQ" flag; true if callers can connect to * the tap device multiple times, for multiple send/receive * queues. * * Since: 1.2 **/ obj_properties[PROP_MULTI_QUEUE] = g_param_spec_boolean(NM_DEVICE_TUN_MULTI_QUEUE, "", "", FALSE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); _nml_dbus_meta_class_init_with_properties(object_class, &_nml_dbus_meta_iface_nm_device_tun); }