Re: [ltp] Re: IBM HDAPS Someone interested?

From: Lee Revell (rlrevell_at_joe-job.com)
Date: 06/23/05

  • Next message: Martin Schwidefsky: "[patch 3/3] s390: debug feature changes." 
    To: Jan Knutar <jk-lkml@sci.fi>
Date:	Thu, 23 Jun 2005 13:08:39 -0400

    On Thu, 2005-06-23 at 18:33 +0300, Jan Knutar wrote:
    > On Tuesday 21 June 2005 02:35, Lee Revell wrote:
    >
    > > I was thinking more along the lines of figure out the io port it's
    > > using, then boot windows, set an IO breakpoint in softice, then drop
    > > your laptop on the bed or something.
    >
    > io ports 0x2E, 0x2F and 0xED aren't assigned to anything "known"
    > on other computers, are they? Someone with windows, softice and
    > tendency to reach deep insights into life, the universe and everything,
    > might find it fun to stare at.
    >

    Now you're talking my language... nope, they aren't used on any of my
    machines... hmm... Anyone want to lend me their Thinkpad? ;-P

    On a related note, I found it kind of depressing when I went to RE a
    Windows driver, I got millions of hits on how to crack copy protection
    on games, and only one guide to RE for Linux driver development:

    http://dxr3.sourceforge.net/re.html

    I'd really like to create a HOWTO, as there are some tricky aspects
    (like getting your IDA Pro symbols loaded into SoftICE), and it's much
    easier to find the register write routines than the document indicates.
    Just grep for "inb", "outb" and friends, most likely they each appear
    exactly once.

    Of course, with IO breakpoints, you don't even have to do that, but the
    register read/write routines are a good place to work backwards from...

    Lee

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  • Next message: Martin Schwidefsky: "[patch 3/3] s390: debug feature changes."

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