From: Brad Fisher <brad@info-link.net>
To: Netfilter Development Mailinglist <netfilter-devel@lists.netfilter.org>
Cc: Kevin Spiteri <kspiteri@hobsoft.com.mt>
Subject: Re: libnetfilter_queue man page
Date: Wed, 08 Feb 2006 12:18:38 -0600 [thread overview]
Message-ID: <43EA35FE.6000000@info-link.net> (raw)
In-Reply-To: <43EA2683.3030606@info-link.net>
Brad Fisher wrote:
> One small thing I should mention - possibly a bug: I tried playing
> around with nfq_get_packet_hw() yesterday and the hw_addrlen returned
> seemed to be much too large... For an ethernet packet I'd expect it
> to be 6 (ethernet MAC address is 6 octets), but it was something like
> 1520 or so. Needless to say, much larger than expected. Perhaps I'm
> interpreting it wrong. I haven't had a chance to look too deeply into
> it yet.
I've determined that this is not a bug. The hw address length is
returned in network byte order, and thus the confusion. The value of
1536 I was seeing on an Athlon system is actually 6 in network order. A
simple ntohs() fixed it. Sorry if this confused anyone... Sure
confused me for a bit :)
-Brad
next prev parent reply other threads:[~2006-02-08 18:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1139235549.30902.3.camel@localhost.localdomain>
2006-02-08 14:19 ` libnetfilter_queue man page Harald Welte
2006-02-08 17:12 ` Brad Fisher
2006-02-08 18:18 ` Brad Fisher [this message]
2006-02-21 17:03 ` Gregor Maier
2006-02-21 18:10 ` Brad Fisher
2007-02-27 8:05 Julien DHERSIN
2007-02-28 12:43 ` Pablo Neira Ayuso
2007-03-02 13:15 ` Julien DHERSIN
-- strict thread matches above, loose matches on Subject: below --
2007-03-01 21:00 Jay Manni
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