ssize_t odhcpd_unhexlify(uint8_t *dst, size_t len, const char *src);
void odhcpd_hexlify(char *dst, const uint8_t *src, size_t len);
-int config_parse_interface(struct blob_attr *b, const char *iname);
+int config_parse_interface(struct blob_attr *b, const char *iname, bool overwrite);
const char* ubus_get_ifname(const char *name);
void ubus_apply_network(void);