+const char *net_get_name(struct udev_device *device);
+
+void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size);
+int deserialize_in_addrs(struct in_addr **addresses, const char *string);
+int deserialize_in6_addrs(struct in6_addr **addresses, const char *string);
+
+/* don't include "dhcp-lease-internal.h" as it causes conflicts between netinet/ip.h and linux/ip.h */
+struct sd_dhcp_route;