From: Eric Dumazet <eric.dumazet@gmail.com>
To: Thomas Graf <tgraf@infradead.org>
Cc: Joakim Tjernlund <joakim.tjernlund@transmode.se>, netdev@vger.kernel.org
Subject: Re: ping -I eth1 ....
Date: Fri, 05 Nov 2010 15:34:25 +0100 [thread overview]
Message-ID: <1288967665.2882.522.camel@edumazet-laptop> (raw)
In-Reply-To: <20101105142510.GA14986@canuck.infradead.org>
Le vendredi 05 novembre 2010 à 10:25 -0400, Thomas Graf a écrit :
> On Fri, Nov 05, 2010 at 03:01:57PM +0100, Joakim Tjernlund wrote:
> > > > Then I do ifconfig eth1 down
> > > > and I still see the same. Should not
> > > > sendto and/or revcfrom return some error as
> > > > the interface is down?
> > >
> > > Hmm, this reminds me one patch, yes...
> > >
> > > Search for " ipv4: remove all rt cache entries on UNREGISTER event"
> > >
> > > http://permalink.gmane.org/gmane.linux.network/173391
> >
> > Ah, that does the trick. A few comments though:
> >
> > 1) I think you should include IFF_RUNNING too
>
> Probably even better to base it on the operational state of the link
>
> netif_running() && netif_oper_up() && netif_carrier_ok() && !netif_dormant()
At this point we setup a route.
Is a change of any of this status going to flush/cancel a previously
setup route ?
There must be a reason why in many places we only test (dev->flags &
IFF_UP), and _never_ netif_oper_up() (only in dev_get_flags() to export
it at userspace)
next prev parent reply other threads:[~2010-11-05 14:34 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-05 13:14 ping -I eth1 Joakim Tjernlund
2010-11-05 13:36 ` Eric Dumazet
2010-11-05 14:01 ` Joakim Tjernlund
2010-11-05 14:25 ` Thomas Graf
2010-11-05 14:34 ` Eric Dumazet [this message]
2010-11-05 14:53 ` Thomas Graf
2010-11-05 15:04 ` Joakim Tjernlund
2010-11-05 15:45 ` Joakim Tjernlund
2010-11-05 14:57 ` Joakim Tjernlund
2010-11-05 15:06 ` Eric Dumazet
2010-11-05 15:54 ` Joakim Tjernlund
2010-11-05 20:31 ` Thomas Graf
2010-11-06 9:42 ` Joakim Tjernlund
[not found] ` <OF921B3329.67FE598A-ONC12577D3.0033387A-C12577D3.00355AC4@LocalDomain>
2010-11-09 19:33 ` Joakim Tjernlund
[not found] ` <OFC0986D69.B0E22D17-ONC12577D6.006B4A38-C12577D6.006B72F9@LocalDomain>
2010-11-17 9:29 ` Joakim Tjernlund
2010-11-17 9:51 ` Eric Dumazet
2010-11-17 10:09 ` Joakim Tjernlund
2010-11-17 10:23 ` Eric Dumazet
2010-11-17 14:03 ` Joakim Tjernlund
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