loading modules at kernel startup

loading modules at kernel startup

[linux lover]

Hi all,
                  How to load own kernel modules just after eth0
interface is brought up?
I want to load kernel module as soon as networking part of kenrel
starts. I dont want to loose any packets that travels on my linux
machine.
regards,
linux_lover

Re: loading modules at kernel startup

[Alex Riesen]

On Tue, 21 Dec 2004 14:44:23 +0530, linux lover
<linux.lover2004@gmail.com> wrote:
> Hi all,
> How to load own kernel modules just after eth0
> interface is brought up?
> I want to load kernel module as soon as networking part of kenrel
> starts.

Look at udev and hotplug

> I dont want to loose any packets that travels on my linux
> machine.

You'll always loose something: there will be a gap between activating
of the network interface and running of your module (or sniffer, as it sounds).

Re: loading modules at kernel startup

[linux lover]

Hello Alex,
               The kernel modules are netfilter modules that i wrote
and want to be loaded as soon as eth0 is up. Is there any way in
kernel to add my modules and get it loaded at startup?
              I actually added in .bashrc but modules are loaded with
every console i open but not once in system.
regards,
linux_lover


On Tue, 21 Dec 2004 10:37:32 +0100, Alex Riesen <raa.lkml@gmail.com> wrote:
> On Tue, 21 Dec 2004 14:44:23 +0530, linux lover
> <linux.lover2004@gmail.com> wrote:
> > Hi all,
> > How to load own kernel modules just after eth0
> > interface is brought up?
> > I want to load kernel module as soon as networking part of kenrel
> > starts.
> 
> Look at udev and hotplug
> 
> > I dont want to loose any packets that travels on my linux
> > machine.
> 
> You'll always loose something: there will be a gap between activating
> of the network interface and running of your module (or sniffer, as it sounds).
>

Re: loading modules at kernel startup

[Bernd Petrovitsch]

On Tue, 2004-12-21 at 10:37 +0100, Alex Riesen wrote:
> On Tue, 21 Dec 2004 14:44:23 +0530, linux lover
> <linux.lover2004@gmail.com> wrote:
[...]
> > How to load own kernel modules just after eth0
> > interface is brought up?
> > I want to load kernel module as soon as networking part of kenrel
> > starts.

This usually depends on your distribution.

> Look at udev and hotplug
> 
> > I dont want to loose any packets that travels on my linux
> > machine.
> 
> You'll always loose something: there will be a gap between activating
> of the network interface and running of your module (or sniffer, as it sounds).

Not if you do all on "activating the network interface" except "ip link
set eth<x> up".
Usually this means patching your distributions network startup scripts
and/or hooking in the firewall-rule-startup-script (where you basically
have the same problem).

	Bernd
-- 
Firmix Software GmbH                   http://www.firmix.at/
mobil: +43 664 4416156                 fax: +43 1 7890849-55
          Embedded Linux Development and Services

Re: loading modules at kernel startup

[Jan Engelhardt]

>Hi all,
>                  How to load own kernel modules just after eth0
>interface is brought up?

Possibly by loading them beforehand.

>I want to load kernel module as soon as networking part of kenrel
>starts. I dont want to loose any packets that travels on my linux
>machine.


Jan Engelhardt
-- 
ENOSPC