diff options
Diffstat (limited to 'src/core/devices/nm-device-loopback.c')
| -rw-r--r-- | src/core/devices/nm-device-loopback.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/src/core/devices/nm-device-loopback.c b/src/core/devices/nm-device-loopback.c new file mode 100644 index 00000000..ec72aa96 --- /dev/null +++ b/src/core/devices/nm-device-loopback.c @@ -0,0 +1,166 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2022 Red Hat, Inc. + */ + +#include "src/core/nm-default-daemon.h" +#include "nm-device-loopback.h" +#include "nm-device-private.h" +#include "libnm-platform/nm-platform.h" +#include "nm-device-factory.h" +#include "nm-setting-loopback.h" +#include "libnm-core-aux-intern/nm-libnm-core-utils.h" + +#define _NMLOG_DEVICE_TYPE NMDeviceLoopback +#include "nm-device-logging.h" + +/*****************************************************************************/ + +struct _NMDeviceLoopback { + NMDevice parent; +}; + +struct _NMDeviceLoopbackClass { + NMDeviceClass parent; +}; + +G_DEFINE_TYPE(NMDeviceLoopback, nm_device_loopback, NM_TYPE_DEVICE) + +/*****************************************************************************/ + +static NMDeviceCapabilities +get_generic_capabilities(NMDevice *dev) +{ + /* In many aspects, loopback is a software device. Still, don't return + * NM_DEVICE_CAP_IS_SOFTWARE here, because we cannot delete nor create + * such an interface. */ + return NM_DEVICE_CAP_NONE; +} + +static guint32 +get_configured_mtu(NMDevice *device, NMDeviceMtuSource *out_source, gboolean *out_force) +{ + return nm_device_get_configured_mtu_from_connection(device, + NM_TYPE_SETTING_LOOPBACK, + out_source); +} + +static const char * +get_auto_ip_config_method(NMDevice *device, int addr_family) +{ + return NM_IS_IPv4(addr_family) ? NM_SETTING_IP4_CONFIG_METHOD_MANUAL + : NM_SETTING_IP6_CONFIG_METHOD_MANUAL; +} + +static gboolean +complete_connection(NMDevice *device, + NMConnection *connection, + const char *specific_object, + NMConnection *const *existing_connections, + GError **error) +{ + nm_utils_complete_generic_with_params(nm_device_get_platform(device), + connection, + NM_SETTING_LOOPBACK_SETTING_NAME, + existing_connections, + NULL, + _("Loopback connection"), + NULL, + nm_device_get_ip_iface(device)); + + _nm_connection_ensure_setting(connection, NM_TYPE_SETTING_LOOPBACK); + + return TRUE; +} + +static void +update_connection(NMDevice *device, NMConnection *connection) +{ + _nm_connection_ensure_setting(connection, NM_TYPE_SETTING_LOOPBACK); +} + +static gboolean +can_reapply_change(NMDevice *device, + const char *setting_name, + NMSetting *s_old, + NMSetting *s_new, + GHashTable *diffs, + GError **error) +{ + if (!nm_streq(setting_name, NM_SETTING_LOOPBACK_SETTING_NAME)) { + return NM_DEVICE_CLASS(nm_device_loopback_parent_class) + ->can_reapply_change(device, setting_name, s_old, s_new, diffs, error); + } + + return nm_device_hash_check_invalid_keys(diffs, + NM_SETTING_LOOPBACK_SETTING_NAME, + error, + NM_SETTING_LOOPBACK_MTU); +} + +/*****************************************************************************/ + +static const NMDBusInterfaceInfoExtended interface_info_device_loopback = { + .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT(NM_DBUS_INTERFACE_DEVICE_LOOPBACK, ), +}; + +static void +nm_device_loopback_init(NMDeviceLoopback *self) +{} + +static void +nm_device_loopback_class_init(NMDeviceLoopbackClass *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_loopback); + + device_class->connection_type_supported = NM_SETTING_LOOPBACK_SETTING_NAME; + device_class->connection_type_check_compatible = NM_SETTING_LOOPBACK_SETTING_NAME; + device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES(NM_LINK_TYPE_LOOPBACK); + + device_class->complete_connection = complete_connection; + device_class->get_generic_capabilities = get_generic_capabilities; + device_class->update_connection = update_connection; + device_class->act_stage1_prepare_set_hwaddr_ethernet = TRUE; + device_class->get_auto_ip_config_method = get_auto_ip_config_method; + device_class->get_configured_mtu = get_configured_mtu; + device_class->allow_autoconnect_on_external = TRUE; + device_class->can_reapply_change = can_reapply_change; +} + +/*****************************************************************************/ + +#define NM_TYPE_LOOPBACK_DEVICE_FACTORY (nm_loopback_device_factory_get_type()) +#define NM_LOOPBACK_DEVICE_FACTORY(obj) \ + (_NM_G_TYPE_CHECK_INSTANCE_CAST((obj), \ + NM_TYPE_LOOPBACK_DEVICE_FACTORY, \ + NMLoopbackDeviceFactory)) + +static NMDevice * +create_device(NMDeviceFactory *factory, + const char *iface, + const NMPlatformLink *plink, + NMConnection *connection, + gboolean *out_ignore) +{ + return g_object_new(NM_TYPE_DEVICE_LOOPBACK, + NM_DEVICE_IFACE, + iface, + NM_DEVICE_TYPE_DESC, + "Loopback", + NM_DEVICE_DEVICE_TYPE, + NM_DEVICE_TYPE_LOOPBACK, + NM_DEVICE_LINK_TYPE, + NM_LINK_TYPE_LOOPBACK, + NULL); +} + +NM_DEVICE_FACTORY_DEFINE_INTERNAL( + LOOPBACK, + Loopback, + loopback, + NM_DEVICE_FACTORY_DECLARE_LINK_TYPES(NM_LINK_TYPE_LOOPBACK) + NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES(NM_SETTING_LOOPBACK_SETTING_NAME), + factory_class->create_device = create_device;); |