static ActionSkBuff filter_src_port(arguments_t args, SkBuff b) { const u16 port = GET_ARG(u16, args); return has_src_port(b, port) ? Pass(b) : Drop(b); }
static bool pred_has_src_port(arguments_t args, SkBuff b) { const u16 port = GET_ARG(u16, args); return has_src_port(b, port); }