From: Stephen Hemminger <shemminger@osdl.org>
To: silviu.craciunas@sbg.ac.at
Cc: linux-kernel@vger.kernel.org
Subject: Re: get device from file struct
Date: Thu, 14 Dec 2006 10:45:18 -0800 [thread overview]
Message-ID: <20061214104518.6ad2cc4c@freekitty> (raw)
In-Reply-To: <1166101408.6186.7.camel@ThinkPadCK6>
On Thu, 14 Dec 2006 14:03:28 +0100
Silviu Craciunas <silviu.craciunas@sbg.ac.at> wrote:
> On Wed, 2006-12-13 at 15:53 -0800, Stephen Hemminger wrote:
> > The connection between file and network device is through many
> > layers and there is no direct binding. It could be 0 to N interfaces
> > and even be data dependent.
>
> you mean protocol dependent? yes,it goes trough the layer of the vfs but
> I thought there may be a way to get to the struct net_device from the
> struct file. You have the dev_base which contains all devices and in the
> net_device there is the ifindex which is the unique identifier. I guess
> there is no way to know the ifindex directly from a socket struct.
>
> thanks
> silviu
>
You can have things like netfilter and traffic classifiers that look
at packet.
--
Stephen Hemminger <shemminger@osdl.org>
prev parent reply other threads:[~2006-12-14 18:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-11 15:22 get device from file struct Silviu Craciunas
2006-12-11 18:34 ` Brice Goglin
2006-12-12 9:04 ` Silviu Craciunas
2006-12-13 9:59 ` Jan Engelhardt
2006-12-13 10:37 ` Silviu Craciunas
2006-12-13 11:03 ` Jan Engelhardt
2006-12-13 12:28 ` Silviu Craciunas
2006-12-13 19:19 ` Jan Engelhardt
2006-12-13 23:53 ` Stephen Hemminger
2006-12-14 13:03 ` Silviu Craciunas
2006-12-14 18:45 ` Stephen Hemminger [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20061214104518.6ad2cc4c@freekitty \
--to=shemminger@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=silviu.craciunas@sbg.ac.at \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox