netdev - Re: [PATCH] iproute: Add route showdump command

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Date:	Fri, 27 Jul 2012 08:14:42 +0400
From:	Pavel Emelyanov <xemul@...allels.com>
To:	Stephen Hemminger <shemminger@...tta.com>
CC:	Dan Smith <danms@...ibm.com>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH] iproute: Add route showdump command

On 07/26/2012 08:03 PM, Stephen Hemminger wrote:
> On Thu, 26 Jul 2012 12:53:39 +0400
> Pavel Emelyanov <xemul@...allels.com> wrote:
> 
>> Some time ago the save+restore commands were added to ip route (git
>> id f4ff11e3, Add ip route save/restore). These two save the raw rtnl
>> stream into a file and restore one (reading it from stdin).
>>
>> The problem is that there's no way to get the contents of the dump
>> file in a human readable form. How about adding a command that reads
>> the rtnl stream from stdin and prints the data in a way the usual
>> "ip route list" does?
>>
>> Signed-off-by: Pavel Emelyanov <xemul@...allels.com>
> 
> Being able to decode a dump is great idea.
> Are the user's smart enough not to try it out at the command prompt
> and get totally lost? Maybe another isatty() check is needed.
> 
> Another solution would be to put a small header on the save file with
> a magic number that could be checked. This would mean changing save/restore/showdump
> and ideally updating the magic file in distributions.
> .

Hm... The idea with magic looks reasonable.
I will look at what can be done here, thanks!
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