taglinefilesource code
rt_window37include/linux/route.hunsigned long  rt_window;  /* Window clamping     */
rt_window41include/net/route.hunsigned long    rt_window;
rt_window300net/ipv4/route.crt->rt_window = 0;  /* Default is no clamping */
rt_window308net/ipv4/route.crt->rt_window = window;
rt_window512net/ipv4/route.cip_rt_add(flags, daddr, mask, gw, dev, r->rt_mss, r->rt_window, r->rt_irtt, metric);
rt_window575net/ipv4/route.cr->rt_mask, (int)r->rt_mss, r->rt_window, (int)r->rt_irtt);
rt_window2832net/ipv4/tcp.cnewsk->window_clamp = rt->rt_window;
rt_window4359net/ipv4/tcp.csk->window_clamp=rt->rt_window;