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From: Glen Turner <gdt@gdt.id.au>
To: Andi Kleen <andi@firstfloor.org>
Cc: Rick Jones <rick.jones2@hp.com>, netdev@vger.kernel.org
Subject: Re: UDP path MTU discovery
Date: Fri, 02 Apr 2010 16:11:58 +1030	[thread overview]
Message-ID: <1270186918.2119.27.camel@ilion> (raw)
In-Reply-To: <20100401005539.GZ20695@one.firstfloor.org>

On Thu, 2010-04-01 at 02:55 +0200, Andi Kleen wrote:
> > What we need is an API for an instant notification that a ICMP Packet
> > Too Big message has arrived concerning the socket.
> 
> That already exists of course: IP_RECVERR

Hi Andi,

So what should I code?  The suggested EMSGSIZE or your suggestion
of grabbing all returning ICMP and parsing it?  Noting that the
second choice is pretty ugly.  That both seem specific to Linux is
frustrating, but that is life -- adding support for an operating
system seems to inevitably add #ifdefs for this sort of code.

Let me know and I'll code it into FreeRADIUS and radsecproxy and
I'll see how they go with 802.1x requests over IPv6.

Thanks so much for your time, Glen

-- 
 Glen Turner
 www.gdt.id.au/~gdt


  reply	other threads:[~2010-04-02  5:40 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-26  0:02 UDP path MTU discovery Glen Turner
2010-03-26  0:53 ` Rick Jones
2010-03-26  3:26   ` David Miller
2010-03-26 17:48     ` Rick Jones
2010-03-31 23:42     ` Glen Turner
2010-03-31 23:51       ` Hagen Paul Pfeifer
2010-04-01  0:06         ` Rick Jones
2010-03-26  3:24 ` David Miller
2010-03-28  8:41   ` Andi Kleen
2010-03-31 23:57     ` Glen Turner
2010-04-01  0:57       ` Andi Kleen
2010-03-28  8:50 ` Andi Kleen
2010-03-29 17:01   ` Rick Jones
2010-03-29 20:14     ` Andi Kleen
2010-03-29 20:25       ` Rick Jones
2010-03-29 20:50       ` Edgar E. Iglesias
2010-03-29 21:01         ` Rick Jones
2010-03-29 21:29           ` Eric Dumazet
2010-03-29 23:38             ` Templin, Fred L
2010-03-30  5:20               ` Andi Kleen
2010-03-30  6:06                 ` Eric Dumazet
2010-03-30  6:16                   ` Andi Kleen
2010-03-30  6:17                   ` UDP path MTU discovery II Andi Kleen
2010-03-30  6:16                 ` UDP path MTU discovery Edgar E. Iglesias
2010-03-30  6:19                   ` Andi Kleen
2010-03-30  8:20                     ` Edgar E. Iglesias
2010-03-30 14:12                       ` Andi Kleen
2010-03-30 22:04                         ` Edgar E. Iglesias
2010-03-30 15:58                     ` Templin, Fred L
2010-03-30 16:06                       ` Andi Kleen
2010-03-31 23:43     ` Glen Turner
2010-04-01  0:55       ` Andi Kleen
2010-04-02  5:41         ` Glen Turner [this message]
2010-04-04 10:25           ` Andi Kleen

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