From: geraint0923@gmail.com (Geraint Yang)
To: kernelnewbies@lists.kernelnewbies.org
Subject: How to hook the system call?
Date: Mon, 28 Nov 2011 10:12:26 +0800 [thread overview]
Message-ID: <CAAdM-RUJ736HDW+Mvb4dE13zSLPs0zd=UL1NUQvkB+XvEtrwFA@mail.gmail.com> (raw)
In-Reply-To: <CAFLxGvx0q+SZBa0ZmBuSKrQzG7T8sskDSQ4H9mpCon7rFjxmdQ@mail.gmail.com>
Thanks for advice !
I am using the LSM framework even though it need recompiling the kernel.
But I will also give a try to the kernelroll module.
Modifying sys_call_table is easier to get error but it can get more freedom
than LSM framework which could only hook on limit hooking points.
On Mon, Nov 28, 2011 at 9:12 AM, richard -rw- weinberger <
richard.weinberger@gmail.com> wrote:
> On Sun, Nov 27, 2011 at 11:17 PM, Jonathan Neusch?fer
> <j.neuschaefer@gmx.net> wrote:
> > On Wed, Nov 23, 2011 at 04:40:14PM +0800, Geraint Yang wrote:
> >> Hello everyone,
> >>
> >> I am going to hook a system call like 'read' or 'send' by modifying the
> >> sys_call_table, but it seems that the sys_call_table is in read only
> page,
> >> how can I set modify the sys_call_table ? Or if there any method that I
> can
> >> use to hook a system call in module without modify the kernel source?
>
> Please keep in mind that hooking a system call is very bad and error prone.
>
> --
> Thanks,
> //richard
>
--
Geraint Yang
Tsinghua University Department of Computer Science and Technology
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next prev parent reply other threads:[~2011-11-28 2:12 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-23 8:40 How to hook the system call? Geraint Yang
2011-11-23 9:22 ` Alexandru Juncu
2011-11-23 10:10 ` Daniel Baluta
2011-11-23 10:27 ` Alexandru Juncu
2011-11-23 12:02 ` rohan puri
2011-11-23 16:50 ` Geraint Yang
2011-11-23 16:59 ` Alexandru Juncu
2011-11-23 18:05 ` Geraint Yang
2011-11-23 18:20 ` Nuno Martins
2011-11-24 4:04 ` rohan puri
2011-11-27 22:17 ` Jonathan Neuschäfer
2011-11-28 1:12 ` richard -rw- weinberger
2011-11-28 2:12 ` Geraint Yang [this message]
2011-11-28 9:48 ` Jonathan Neuschäfer
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