inpcb or tcpcb in Linux net souce code

Hi all,

I want to search all tcp connections in kernel.
In BSD there are inpcb (Internet protocol control block) and tcpcb (TCP
control block) and the inpcb entities are connected by doubly linked lists.
I think Linux has sock and tcp_opt which are corresponding to insub and
tcpcb respectively.
However I couldn't figure it out whether socks are connected by anyway.
Are they linked by doubly linked list or some other way?
Is there any way I can search all connections in kernel?

I think netstat program is already doing this in kernel level.
But I coundn't find netstat's source code also.

Thank a lot.

Soohyun Cho

I found it.

It is "struct sock" in include/net/sock.h.
Thanks,


Soohyun Cho wrote:
> Hi all,
>
> I want to search all tcp connections in kernel.
> In BSD there are inpcb (Internet protocol control block) and tcpcb (TCP
> control block) and the inpcb entities are connected by doubly linked lists.
> I think Linux has sock and tcp_opt which are corresponding to insub and
> tcpcb respectively.
> However I couldn't figure it out whether socks are connected by anyway.
> Are they linked by doubly linked list or some other way?
> Is there any way I can search all connections in kernel?
>
> I think netstat program is already doing this in kernel level.
> But I coundn't find netstat's source code also.
>
> Thank a lot.
>
> Soohyun Cho
>
>