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

[Khem Raj]

On 06/28/2011 04:53 PM, Graeme Gregory wrote:
> On 06/29/2011 12:50 AM, Khem Raj wrote:
>>
>> On Jun 28, 2011, at 3:51 PM, Scott Garman<scott.a.garman at intel.com>  wrote:
>>
>>> On 06/28/2011 03:41 PM, Khem Raj wrote:
>>>> ERROR: Multiple .bb files are due to be built which each provide ssh
>>>> (/home/kraj/work/angstrom/sources/openembedded-core/meta/recipes-core/dropbear/dropbear_0.52.bb
>>>> /home/kraj/work/angstrom/sources/openembedded-core/meta/recipes-connectivity/openssh/openssh_5.8p2.bb).
>>>>   This usually means one provides something the other doesn't and should.
>>>> ERROR: Multiple .bb files are due to be built which each provide sshd
>>>> (/home/kraj/work/angstrom/sources/openembedded-core/meta/recipes-core/dropbear/dropbear_0.52.bb
>>>> /home/kraj/work/angstrom/sources/openembedded-core/meta/recipes-connectivity/openssh/openssh_5.8p2.bb).
>>>>   This usually means one provides something the other doesn't and should.
>>>>
>>>> reason is that dropbear only provides ssh and sshd packages openssh
>>>> provides a few more e.g. openssh-sftp-server which is demanded by
>>>> some images and at same time wants dropbear to provide sshd and ssh
>>>>
>>>> Now both recipes are to be built but are in contention for providing
>>>> ssh and sshd
>>>>
>>>> How to solve this problem. ? Are other packages that openssh provides
>>>> strictly depending on ssh/sshd from openssh ? or will they work on
>>>> any ssh/sshd ?
>>>>
>>>> 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
>>> I've run into that and have been wondering how to resolve it as well.
>>>
>>> If there are currently existing images which are pulling in dropbear's ssh and sshd while using openssh's sftp-server, then that would imply they can work independently, even though that combo seems like an aggressive space optimization that I would tend to avoid.
>> yes if you build console-image with angstrom you will see it wanting sftp-server and dr bear for rest of ssh needs
>>
> sftp-server is just a really small ftp like program that gets run as the
> shell when sftp connects instead of ssh. It has no dependency on any
> openssh code or even openssl.

ok that solves my question about deps on ssh/ssh from openssh. So it 
seems we can refactor the openssh recipe


  This is the reason why the dropbear
> developer decided to just use it instead of writing his own exact work
> alike.
>
> I was the one that added it to Angstrom images as I really like to sftp
> out of the box.
>
> Graeme
>
>
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