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Message-ID: <35aabd94-068a-3ef3-c52c-3b30a2bf5c71@redhat.com>
Date:   Mon, 6 Jun 2022 14:29:14 -0400
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Subject: Re: nfs-utils: rpc.svcgssd bug reading /etc/nfs.conf
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To:     marcel@linux-ng.de, linux-nfs@vger.kernel.org
References: <bf4aa2c82bfef19304d7a458a2a8fb28@linux-ng.de>
From:   Steve Dickson <steved@redhat.com>
In-Reply-To: <bf4aa2c82bfef19304d7a458a2a8fb28@linux-ng.de>
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Hello,

On 6/6/22 2:14 PM, marcel@linux-ng.de wrote:
> Hi there,
> 
> please don't hesitate to direct me somewhere else in case this is not the right place to report
> bugs concerning nfs-utils.
> 
> I found a bug in nfs-utils concerning the rpc.svcgssd daemon while I was trying to set the
> principal name in /etc/nfs.conf:
> 
> [svcgssd]
> principal=nfs/myhost.mydomain.de@MYDOMAIN.DE
> 
> However rpc.svcgssd refused to start - complaining about not being able to find the principal in
> the keytab.
> When specified on command line (using the -p option) things worked however.
> 
> So I took a look at the code and found the problem in nfs-utils-2.6.1/utils/gssd/svcgssd.c.
> The problem seems to be here:
> 
> /* We don't need the config anymore */
> conf_cleanup();
> 
> This is called right after parsing the config file(s), but before calling gssd_acquire_cred().
> At the time it is called the variable "principal" does no longer contain the data read from the
> config file.
> 
> Moving conf_cleanup() to the end of the code helps.Could you please set a patch that shows where you moved this call?

> 
> As I first encountered this on Ubuntu 22.04 I also opened a Launchpad bug report:
> s. https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1977745
Unfortunately I don't get notified when these get open....
https://bugzilla.linux-nfs.org/ would be a better place.

> 
> Maybe someone can fix this for the next release.
Sure... send a patch and we can make it happen!

steved.

> 
> Best regards,
> Marcel
>