netdev - Re: [PATCH] iproute: Ignore all output fields of ip route get for route add

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Date:	Fri, 03 Jun 2011 02:07:59 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	andi@...stfloor.org
Cc:	shemminger@...ux-foundation.org, netdev@...r.kernel.org
Subject: Re: [PATCH] iproute: Ignore all output fields of ip route get for
 route add

From: Andi Kleen <andi@...stfloor.org>
Date: Fri, 3 Jun 2011 10:39:18 +0200

> My vpnc-connect script broke in a kernel release because the new
> kernel started returning the ipid in ip cache get. The script
> would do ip route get, modify the route and then feed it back
> to ip route add. But ip route add couldn't parse ipid ..
> 
> Make route add skip all status fields output by ip cache get
> 
> In theory they could be fed to the kernel too, but that's likely
> not very useful (and I'm not fully sure if the kernel would
> even use them)
> 
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>

I think we've had this discussion before.

There are no guarentees that what the tool outputs for routes is
suitable for creating routes.

People have already put vpnc script fixes into Fedora and similar
already.

iproute2 is not where the hacks belong.
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