Re: [PATCH] Only lookup uid/gid when applying rules

[Roy Marples <uberlord@gentoo.org>]

On Tuesday 01 August 2006 14:12, Kay Sievers wrote:
> How does that solve the problem, that you need to resolve a name when a
> rule gets applied, but you will hang in getpwnam() cause of  the system
> config?
> Such an array will only reduce the number of lookups for the _same_
> name, but not solve the problem, right?

OK, it doesn't really solve the problem. The issue as I see it is that every 
user/group name is looked up for each rule before events are processed.

This is bad for reasons explained earlier.

So we need to lookup the user/group at rule application time. We can 
optionally store it back in the rule or in an a id/name array.

This solves the problem of a correctly configured LDAP server who does not 
have the user/group "tss" in any nss DB and yet exists in a udev rule that 
will never be applied.

This does not solve the problem of a poorly configured LDAP/NIS/udev system 
where the user did not add tss to /etc/{passwd,group}, but the patch was not 
expected to either ;)

Thanks

-- 
Roy Marples <uberlord@gentoo.org>
Gentoo/Linux Developer (baselayout, networking)

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