HI all,

I want to know ,if there is a way to get data from the kernel SEND
buffer for a socket from a kernel module which is using netfilter
hooks ?? If yes, is there any open source implemenation /example which
i can start with ??
I believe there should be a way to parse sk_buff linked list and get
this data but not very sure being new to networking . Also how
portable this part will be ??
1: To other Linux kernel versions ??
2: To Other Unix* like kernels ??


Thanks,
Rohit

On May 10, 4:26 pm, Rohit <will.u.tellmem...@gmail.com> wrote:
> HI all,
>
> I want to know ,if there is a way to get data from the kernel SEND
> buffer for a socket from a kernel module which is using netfilter
> hooks ?? If yes, is there any open source implemenation /example which
> i can start with ??
> I believe there should be a way to parse sk_buff linked list and get
> this data but not very sure being new to networking . Also how
> portable this part will be ??
> 1: To other Linux kernel versions ??
> 2: To Other Unix* like kernels ??
>
> Thanks,
> Rohit

hi,
Check out this link
http://www.jungo.com/openrg/download...networking.pdf
chapter 13.
you can develop a similar kind of module and get the packets.

It should be portable between linux(minor variations if any).

With unix - dont know.

- Jothy

Thanks for the link. Will give it a try


On May 10, 8:10 pm, SaranJothy <saranjo...@gmail.com> wrote:
> On May 10, 4:26 pm, Rohit <will.u.tellmem...@gmail.com> wrote:
>
> > HI all,
>
> > I want to know ,if there is a way to get data from the kernel SEND
> > buffer for a socket from a kernel module which is using netfilter
> > hooks ?? If yes, is there any open source implemenation /example which
> > i can start with ??
> > I believe there should be a way to parse sk_buff linked list and get
> > this data but not very sure being new to networking . Also how
> > portable this part will be ??
> > 1: To other Linux kernel versions ??
> > 2: To Other Unix* like kernels ??
>
> > Thanks,
> > Rohit
>
> hi,
> Check out this linkwww.jungo.com/openrg/download/linux_ip_networking.pdf
> chapter 13.
> you can develop a similar kind of module and get the packets.
>
> It should be portable between linux(minor variations if any).
>
> With unix - dont know.
>
> - Jothy