linux-kernel - Re: Inserting code from userspace to kernel space

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Date:	Fri, 23 May 2008 16:30:16 +0200
From:	devzero@....de
To:	sangshuduo@...il.com
Cc:	bosko.radivojevic@...il.com, linux-kernel@...r.kernel.org
Subject: Re: Inserting code from userspace to kernel space

>> I know this sounds quite weird, but maybe there is a project that can help us ;)
>>
>
>actually you can implement a parser/interpretor, whatever you name it,
>in kernel space. And you can send the
>function code from user space to kernel space by device driver
>interface. the parser can parse that and do something
>practical function in kernel.
>
>I have worked on a similar task in a product powered by linux. It works great.

any pointer to the sourcecode so bosko (and others) can profit from that ?




List:       linux-kernel
Subject:    Re: Inserting code from userspace to kernel space
From:       "Shuduo Sang" <sangshuduo () gmail ! com>
Date:       2008-05-22 16:04:35
Message-ID: ee101c360805220904h1c69db12q3048d0347d27c461 () mail ! gmail ! com
[Download message RAW]

On Thu, May 22, 2008 at 8:41 PM, Bosko Radivojevic
<bosko.radivojevic@...il.com> wrote:
> Hi!
>
> I'm looking for a way to insert code from user space to the kernel
> space, but without using kernel module. Actually, we are working on a
> system that has to allow end user to change part of code (one or two
> functions) that is executed from the kernel space.
>
> For now we have two different kernel modules, one exporting a function
> which another module uses. Process of compiling kernel module is quite
> ineligible for standard end user (along with the requirement to
> support multi platform cross compiling) compared to just cross
> compiling a simple code that doesn't use any libraries than libc.
>
> I know this sounds quite weird, but maybe there is a project that can help us ;)
>

actually you can implement a parser/interpretor, whatever you name it,
in kernel space. And you can send the
function code from user space to kernel space by device driver
interface. the parser can parse that and do something
practical function in kernel.

I have worked on a similar task in a product powered by linux. It works great.

> Sincerely,
> Bosko
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