From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760782AbYEYJfl (ORCPT ); Sun, 25 May 2008 05:35:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755036AbYEYJfd (ORCPT ); Sun, 25 May 2008 05:35:33 -0400 Received: from fmmailgate05.web.de ([217.72.192.243]:60351 "EHLO fmmailgate05.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754997AbYEYJfc convert rfc822-to-8bit (ORCPT ); Sun, 25 May 2008 05:35:32 -0400 Date: Sun, 25 May 2008 11:35:31 +0200 Message-Id: <290982711@web.de> MIME-Version: 1.0 From: devzero@web.de To: Shuduo Sang Cc: bosko.radivojevic@gmail.com, linux-kernel@vger.kernel.org Subject: Re: Inserting code from userspace to kernel space Organization: http://freemail.web.de/ X-Provags-Id: V01U2FsdGVkX18ekSEpBWZ9NkCUzYr1kMS5LHsv0AdPhs8IevNyOtf3JlxRZ oXEFft0pdPkfU6Fnm9Tu/K2UmMQ9XETHQ+KMgPlyVgvVupP6vM= Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > someone does not want to leak propertied algorithm out with GPL. This > can be a way to protect. this can be illegal, too. http://www.gnu.org/licenses/gpl-faq.html#ModifiedJustBinary >Can I release a modified version of a GPL-covered program in binary form only? >No. The whole point of the GPL is that all modified versions must be free software — which means, >in particular, that the source code of the modified version is available to the users > On Fri, May 23, 2008 at 10:30 PM, wrote: > >>> 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 ? > > > > someone does not want to leak propertied algorithm out with GPL. This > can be a way to protect. > > > > > > > > > List: linux-kernel > > Subject: Re: Inserting code from userspace to kernel space > > From: "Shuduo Sang" > > 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 > > 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 > >> -- > >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > >> the body of a message to majordomo@vger.kernel.org > >> More majordomo info at http://vger.kernel.org/majordomo-info.html > >> Please read the FAQ at http://www.tux.org/lkml/ > >> > > ______________________________________________________________ > > Jeden Monat 1 hochkarätiger maxdome-Blockbuster GRATIS! > > Exklusiv für alle WEB.DE Nutzer. http://www.blockbuster.web.de > > > > > _______________________________________________________________ Schon gehört? Der neue WEB.DE MultiMessenger kann`s mit allen: http://www.produkte.web.de/messenger/?did=3016