On Tue, Aug 14, 2012 at 6:13 PM, Ajay Garg wrote:
> So, the use-case I am trying to solve, is that only a particular
> process should be able to read a group of files, and no one else (i.e.
> no-other-user/ no-other-process/no-other-anything). The only exception
> is the "root" user, and any user
Thanks Richard, Felipe, Alan.
First of all, let me tell you that I am highly previleged talking to
some of the most distinguished hackers in the world.
Alan, I truly admire you :)
So, the use-case I am trying to solve, is that only a particular
process should be able to read a group of files,
> I have already tried extracting the address of the "sys_call_table"
> from "System.Map"; however, I am still not able to replace the
> function-pointers with mine.
Correct.
> Trying to do gives me page-faults, apparently meaning that the
> syscall-table memory area is read-only.
Correct.
The
On Tue, Aug 14, 2012 at 05:01:56PM +0530, Ajay Garg wrote:
> Hi all.
>
> It is well known that the syscall-table had stopped being exported
> from version 2.6 onwards.
>
> So, now as a developer, if I wish to hack into the syscall-table, and
> change the syscall-function-pointers to my
On Tue, Aug 14, 2012 at 1:31 PM, Ajay Garg wrote:
> So, now as a developer, if I wish to hack into the syscall-table, and
> change the syscall-function-pointers to my custom-function-pointers
> (mainly for the reason of adding/preventing access to certain files,
> via Kernel-Loadable-Modules),
On Tue, Aug 14, 2012 at 1:31 PM, Ajay Garg ajaygargn...@gmail.com wrote:
So, now as a developer, if I wish to hack into the syscall-table, and
change the syscall-function-pointers to my custom-function-pointers
(mainly for the reason of adding/preventing access to certain files,
via
On Tue, Aug 14, 2012 at 05:01:56PM +0530, Ajay Garg wrote:
Hi all.
It is well known that the syscall-table had stopped being exported
from version 2.6 onwards.
So, now as a developer, if I wish to hack into the syscall-table, and
change the syscall-function-pointers to my
I have already tried extracting the address of the sys_call_table
from System.Map; however, I am still not able to replace the
function-pointers with mine.
Correct.
Trying to do gives me page-faults, apparently meaning that the
syscall-table memory area is read-only.
Correct.
The kernel
Thanks Richard, Felipe, Alan.
First of all, let me tell you that I am highly previleged talking to
some of the most distinguished hackers in the world.
Alan, I truly admire you :)
So, the use-case I am trying to solve, is that only a particular
process should be able to read a group of files,
On Tue, Aug 14, 2012 at 6:13 PM, Ajay Garg ajaygargn...@gmail.com wrote:
So, the use-case I am trying to solve, is that only a particular
process should be able to read a group of files, and no one else (i.e.
no-other-user/ no-other-process/no-other-anything). The only exception
is the root
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