How to send an IP packet from the kernel

How to send an IP packet from the kernel

[Dmytro Bablinyuk]

I have a dstaddr, srcaddr and the actual data(payload). I need to load 
IP packet with data(payload) and send the packet out to the net through 
eth0 .
How do I do this from the kernel?

Thank you

Re: How to send an IP packet from the kernel

[William Stearns]

Good morning, Dmytro,

On Mon, 15 Dec 2003, Dmytro Bablinyuk wrote:

> I have a dstaddr, srcaddr and the actual data(payload). I need to load 
> IP packet with data(payload) and send the packet out to the net through 
> eth0 .
> How do I do this from the kernel?

	Why not do it from userspace, with lots of available tools ( 
http://www.stearns.org/doc/pcap-apps.html , 
http://www.stearns.org/netreply )?
	Cheers,
	- Bill

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Re: How to send an IP packet from the kernel

[Dmytro Bablinyuk]

>>I have a dstaddr, srcaddr and the actual data(payload). I need to load 
>>IP packet with data(payload) and send the packet out to the net through 
>>eth0 .
>>How do I do this from the kernel?
>>    
>>
>
>	Why not do it from userspace, with lots of available tools ( 
>http://www.stearns.org/doc/pcap-apps.html , 
>http://www.stearns.org/netreply )?
>  
>
For reasons that the driver will do extra stuff on this data and this 
data not always will be/must be available to a user space app.
Some data will be available only inside of the driver. No other 
processing out of the driver for that data is allowed.

Re: How to send an IP packet from the kernel

[Joshua Schmidlkofer]

On Mon, 2003-12-15 at 07:38, Dmytro Bablinyuk wrote:
> >>I have a dstaddr, srcaddr and the actual data(payload). I need to load 
> >>IP packet with data(payload) and send the packet out to the net through 
> >>eth0 .
> >>How do I do this from the kernel?
> >>    
> >>
> >
> >	Why not do it from userspace, with lots of available tools ( 
> >http://www.stearns.org/doc/pcap-apps.html , 
> >http://www.stearns.org/netreply )?
> >  
> >
> For reasons that the driver will do extra stuff on this data and this 
> data not always will be/must be available to a user space app.
> Some data will be available only inside of the driver. No other 
> processing out of the driver for that data is allowed.


You trying to back door a driver or something?   You might look at AFS
kernel modules. http://www.openafs.org.  They do many things in the
kernel, and i think that some IP communications is one of them.  [But
don't quote me]

js