Re: Accessing tcp socket information from within a module

[Vishwas Raman]

David S. Miller wrote:
> On Fri, 03 Oct 2003 17:02:07 -0700
> Vishwas Raman <vishwas@xxxxxxxxxxxxxxxxxxx> wrote:
>
>
> > Is there some way of accessing the information of all open tcp sockets 
> > in the system, other than having to turn one of IPV6 or KHTTPD on?
>
>
> You don't even need to write your kernel module, there is already
> a special netlink socket provided to userspace exactly for this
> purpose, to get info on all TCP sockets efficiently.
>
> See net/ipv4/tcp_diag.c

But what if I am interested in doing the same in kernel space and not 
user space? The module I am writing is going to sit between the tcp and 
ip layers of the networking stack. And I need to get info on all TCP 
sockets and create/modify certain data structures of my own in the 
module based on that information.


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