Date: Fri, 30 Jul 2010 00:01:04 -0500 From: Steven Susbauer <steven@too1337.com> To: freebsd-questions <freebsd-questions@freebsd.org> Cc: EforeZZ <eforezz@gmail.com> Subject: Re: Firewire RAM access Message-ID: <4C525C90.9000003@too1337.com> In-Reply-To: <AANLkTikv%2BPA3J-gYjHULghW8BskswYjjRBwpripQB5Zw@mail.gmail.com> References: <AANLkTikv%2BPA3J-gYjHULghW8BskswYjjRBwpripQB5Zw@mail.gmail.com>
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On 07/27/10 07:38, EforeZZ wrote: > Hi, > > I was playing around with fwcontrol and its "-m" switch. > I connected my FreeBSD 7.2 notebook to Win7 PC Via firewire and > attempted to access Win7's RAM through the /dev/fwmem interface. I > failed. > <snip> > The question is.. Should this always work? As far as I know I should > be able to access other PC's RAM through the firewire connection > without any support from the connected PC's OS, right? > > Best regards, > EforeZZ According to this page for the Linux mem1394 driver, the host can set up a filter to block it, and Windows appears to do so (http://johannes.sipsolutions.net/Projects/mem1394). -Steve
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