[OE-core] Conflicting providers for ssh/sshd (dropbear and openssh)

[Scott Garman]

On 06/29/2011 01:56 AM, Koen Kooi wrote:
>
> Op 29 jun 2011, om 10:50 heeft Anders Darander het volgende
> geschreven:
>
>> On Wed, Jun 29, 2011 at 10:24, Koen
>> Kooi<koen at dominion.thruhere.net>  wrote:
>>> Op 29 jun 2011, om 00:41 heeft Khem Raj het volgende geschreven:
>>>> If they are independent then may be the openssh recipe should
>>>> be divided into openssh-ssh and openssh-rest so one can use
>>>> openssh provided daemon or dropbear provided as they wish
>>>
>>> Dividing the openssl recipe would gain us little and the gains
>>> would be only for the power companies since you'd have to build
>>> openssh twice to get both sftp and ssh. The decrease in build
>>> time for only sftp is neglible.
>>
>> Hm, speaking against what I've often been advocating (reducing
>> build time by factoring out dependenies etc)...
>>
>> I think the simplest and most straightforward solution is to just
>> split the packaging into openssh-ssh and openssh-sftp, where
>> openssh-sftp packages just what is needed for handling the
>> sftp-server in cooperation with dropbear. It could possibly also
>> include the sftp-client if desired/needed.
>
> That's already the case now. The problem is the PROVIDES overlap
> since the Poky people decided a distro could only have one true ssh
> implementation instead of choosing it per image. So if your distro
> doesn't set the PREFERRED_PROVIDER_sshd you get those nagging
> messages during parsing that scare users and make consultants rich.
>
> OE .dev isn't a lot better with the misguided DISTRO_SSH_DAEMON, but
> at least it doesn't show those nag messages.

It's worth noting that one of the things I got into master just after 
Yocto 1.0 shipped was a refactoring of how ssh servers were specified. 
It no longer is a distro choice - we have task-core-ssh-openssh and 
task-core-ssh-dropbear that you add to IMAGE_FEATURES for your desired 
image.

Which makes me wonder what the consequences would be to simply remove 
the PROVIDES from the dropbear and openssh recipes?

Scott

-- 
Scott Garman
Embedded Linux Engineer - Yocto Project
Intel Open Source Technology Center