Iner Module Communications

Iner Module Communications

[vinolin]

Hi Group !

Is it possible to perform inermodule communications between the LKM s?
Any idea ?
Please share with me.

Thanks,
Vinolin.

Re: Iner Module Communications

[Robert Love]

On Wed, 2002-03-13 at 00:45, vinolin wrote:

> Is it possible to perform inermodule communications between the LKM s?
> Any idea ?
> Please share with me.

You can call functions and touch data in other functions ... the kernel
image, even with modules, is one big flat monolithic model.

You will probably want to EXPORT_SYMBOL the functions and variables you
want to touch ... see other modules.  But basically you can access
anything that is exported once your module is linked.

Carefully consider _why_ you need "inter-module communication",
though... and design to those (hopefully proper) goals.

	Robert Love

Re: Iner Module Communications

[vinolin]

On Wednesday 13 March 2002 11:23, Robert Love wrote:

> You can call functions and touch data in other functions ... the kernel
> image, even with modules, is one big flat monolithic model.
>
> You will probably want to EXPORT_SYMBOL the functions and variables you
> want to touch ... see other modules.  But basically you can access
> anything that is exported once your module is linked.
>
> Carefully consider _why_ you need "inter-module communication",
> though... and design to those (hopefully proper) goals.
>
>        Robert Love


Thanks Robert.
Actually i'm trying to segregate IP and ICMP from the linux stack.
Thogh i do insmod of IP as well as ICMP, i'm having the linux stack as well.
In this case, if i do EXPORT_SYMBOL,
  the LKM ICMP module can refer the IP module instead of refering LKM IP 
module. But i want the LKM ICMP communicate to LKM IP only, not the kernel's 
IP.

Is EXPORT_SYMBOL the only way to solve this ? Any other idea ?

Thanks,
Vinolin.