Hello, On Sun, 2006-02-26 at 09:07, Jesse Brandeburg wrote: > On 2/23/06, Anders K. Pedersen <[EMAIL PROTECTED]> wrote: > > We have a couple of servers with Mylex RAID controllers (handled by the > > DAC960 block device driver). There's normally no keyboard or mouse > > attached, and neither the DAC960 nor the NIC driver (e100) provides > > entropy to the random pool, so it was impossible to get any data from > > /dev/random. > > Is there any reason that other network drivers shouldn't be setting > SA_SAMPLE_RANDOM?
When I ran into this problem, I did some googling of the problem, and found a description of a similar problem in an older thread on LKML (I don't have the link now, sorry), where it was mentioned, that it was somewhat bad for NIC drivers to set SA_SAMPLE_RANDOM, because network traffic can be observed an to some extent controlled from the outside. I don't know how serious a problem this is, but because of this, I chose to patch the RAID driver and not the NIC driver. I did notice, though, that several NIC drivers (e1000 and tg3 comes to mind) do set SA_SAMPLE_RANDOM, so the behaviour currently isn't consistent. -- Med venlig hilsen - Best regards Anders K. Pedersen Network Engineer - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
