From: Stephen Hemminger <shemminger@linux-foundation.org>
To: "Timo Teräs" <timo.teras@iki.fi>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] iproute2: support xfrm upper protocol gre key
Date: Tue, 23 Nov 2010 10:54:18 -0800 [thread overview]
Message-ID: <20101123105418.65072de8@nehalam> (raw)
In-Reply-To: <4CEC0A42.60209@iki.fi>
On Tue, 23 Nov 2010 20:38:58 +0200
Timo Teräs <timo.teras@iki.fi> wrote:
> On 11/23/2010 08:13 PM, Stephen Hemminger wrote:
> > On Tue, 23 Nov 2010 18:44:44 +0200
> > Timo Teräs <timo.teras@iki.fi> wrote:
> >> On 11/23/2010 06:24 PM, Stephen Hemminger wrote:
> >>> The GRE key is not really an IPv4 address. Why should the utilities
> >>> use IPv4 address manipulation to format/scan it. It makes more sense
> >>> to me to just use u32 an do the necessary ntohl.
> >>
> >> This is pretty much how iptunnel.c does it, so I copied the code. Would
> >> you prefer to format it as single u32 number? Or use something else for
> >> formatting it similar to IPv4?
> >>
> >> In either case, we should change iptunnel.c to match ipxfrm.c. It'll be
> >> easier if both parts handling the gre key treat it equivalently.
> >>
> >> I think Cisco does indeed treat it as u32 number in the configurations.
> >> So I'm okay updating this patch, and fixing iptunnel.c side too. We
> >> might still want to keep the parsing of ipv4 format to keep backwards
> >> compatibility.
> >
> > My preference would be to take both dotted quad and a single
> > number.
>
> And I assume that when dumping stuff, it should be output as single
> number. Or make that configurable with some switch?
>
> I'll refresh my patch and fix iptunnel.c output tomorrow.
Just show it as a decimal number. That is what Cisco and Juniper do.
--
next prev parent reply other threads:[~2010-11-23 18:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-23 15:02 [PATCH] iproute2: support xfrm upper protocol gre key Timo Teräs
2010-11-23 16:24 ` Stephen Hemminger
2010-11-23 16:44 ` Timo Teräs
2010-11-23 18:13 ` Stephen Hemminger
2010-11-23 18:38 ` Timo Teräs
2010-11-23 18:54 ` Stephen Hemminger [this message]
2010-11-24 8:18 ` [PATCH 1/2] iproute2: treat gre key as number Timo Teräs
2010-11-24 8:18 ` [PATCH 2/2] iproute2: support xfrm upper protocol gre key Timo Teräs
2010-11-30 17:55 ` Stephen Hemminger
2010-11-23 22:26 ` [PATCH] " Ben Hutchings
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