> Hi,
>
> Using the kernel facility such as system call or something, is there
> any method of getting the value of tcp window size?
>
> If not, I just want to know whether I have to add a system call of
> doing that or not.
>
> Thanks.
look at the ss utility which comes with iproute2 in the misc directory.
it can display lots of information,
other stuff can easily be added to net/ipv4/tcp_diag.c.
Bye,
Patrick
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