From mboxrd@z Thu Jan  1 00:00:00 1970
From: ZelluX <zellux@gmail.com>
Subject: Implementing keystroke logger in VMM
Date: Fri, 15 Jan 2010 20:20:19 +0800
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Hi, all

I want to sniffer keystrokes in Xen and filter some special characters
before Domain 0 gets the keystrokes. It seems first I need to write a simple
keyboard driver in Xen, and when an interrupt comes in, check whether it is
keyboard interrupt. If  it is a keyboard interrupt, get the data by inb
instruction, and do some logging and filtering work, then pass the interrupt
again to Domain 0.

So my question is, after Xen calls inb to fetch the character, will Domain 0
be able to fetch the character again? If not, is it possible for Xen to fake
a same character interrupt?

Many thanks.

-- 
Best regards,
Wang Yuanxuan
Parallel Processing Institute, Fudan University

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Hi, all<div><br></div><div>I want to sniffer keystrokes in Xen and filter s=
ome special characters before Domain 0 gets the keystrokes. It seems first =
I need to write a simple keyboard driver in Xen, and when an interrupt come=
s in, check whether it is keyboard interrupt. If =A0it is a keyboard interr=
upt, get the data by inb instruction, and do some logging and filtering wor=
k, then pass the interrupt again to Domain 0.</div>
<div><br></div><div>So my question is, after Xen calls inb to fetch the cha=
racter, will Domain 0 be able to fetch the character again? If not, is it p=
ossible for Xen to fake a same character interrupt?=A0</div><div><br></div>
<div>Many thanks.<br clear=3D"all"><br>-- <br>Best regards,<br>Wang Yuanxua=
n<br>Parallel Processing Institute, Fudan University<br>
</div>

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