int type_system_get_type_system(const NLTypeSystem *type_system, const NLTypeSystem **ret, uint16_t type);
int type_system_get_type_system_union(const NLTypeSystem *type_system, const NLTypeSystemUnion **ret, uint16_t type);
int type_system_union_get_type_system(const NLTypeSystemUnion *type_system_union, const NLTypeSystem **ret, const char *key);
+
+typedef enum NLUnionLinkInfoData {
+ NL_UNION_LINK_INFO_DATA_BOND,
+ NL_UNION_LINK_INFO_DATA_BRIDGE,
+ NL_UNION_LINK_INFO_DATA_VLAN,
+ NL_UNION_LINK_INFO_DATA_VETH,
+ NL_UNION_LINK_INFO_DATA_DUMMY,
+ NL_UNION_LINK_INFO_DATA_MACVLAN,
+ NL_UNION_LINK_INFO_DATA_VXLAN,
+ NL_UNION_LINK_INFO_DATA_IPIP_TUNNEL,
+ NL_UNION_LINK_INFO_DATA_IPGRE_TUNNEL,
+ NL_UNION_LINK_INFO_DATA_SIT_TUNNEL,
+ NL_UNION_LINK_INFO_DATA_VTI_TUNNEL,
+ _NL_UNION_LINK_INFO_DATA_MAX,
+ _NL_UNION_LINK_INFO_DATA_INVALID = -1
+} NLUnionLinkInfoData;
+
+const char *nl_union_link_info_data_to_string(NLUnionLinkInfoData p) _const_;
+NLUnionLinkInfoData nl_union_link_info_data_from_string(const char *p) _pure_;