Re: [Patch] Selective removal mode for udev

[Hannes Reinecke <hare@suse.de>]

Kay Sievers wrote:
> On Fri, 2005-02-11 at 11:15 +0100, Christian Zoz wrote:
>>On Fri, Feb 11, Kay Sievers wrote:
[ .. ]
>>>Hmm, wouldn't it be nicer to be able to set these things along with the
>>>rules, so we still have only one source of policy. And we are able to
>>>match against SUBSYSTEMS, DRIVERS and such things?
>>>
>>>Something like an OPTIONS="..." key, which may contain a list of keys
>>>and we can also move the no_partitions key into that.
>>>
>>>This way we can specify the "remove-policy" with an "option" only rule
>>>globally or only for a certain subsystem.
>>For indiviual rules there is ignore_remove. And as a global switch an
>>option in udev.conf is much easier. The user needs no knowldege about
>>rule writing.
> 
> You shouldn't change udev.conf, if you don't know how to write rules. :)
> 
> The point is that it's nice to have _all_ policy from one source.
> One line with:
>   OPTIONS="no_remove"
> 
> will do the same as the config option. But you can limit its focus with
> additional keys to certain devices if needed.
> We've removed the default permissions settings from udev.conf for the
> same reason.
> 
Yes, this sounds reasonable.

Proposed format:

OPTIONS=<optargs>
<optargs> := "<arg>(,<arg>)*"
<arg> := ignore_scripts|remove_none|remove_symlinks

No, since we're having several options I consider it quite a waste to 
store every option with one line in the database. Can't we just use a 
bitmap for it? Would simplify handling quite a lot ...

Cheers,

Hannes
-- 
Dr. Hannes Reinecke			hare@suse.de
SuSE Linux AG				S390 & zSeries
Maxfeldstraße 5				+49 911 74053 688
90409 Nürnberg				http://www.suse.de


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