Evaluating a port to RTEMS (embedded OS with single address space and no processes)

[Christian Mauderer]

Am 04.02.2016 um 14:11 schrieb Luca Filipozzi:
> On Thu, Feb 04, 2016 at 01:40:30PM +0100, Christian Mauderer wrote:
>> I am searching a SSH server for remote administration of an embedded
>> application running on RTEMS (https://www.rtems.org). This environment
>> has neither virtual memory nor user and kernel space. So this is like an
>> application running in kernel mode only.
>>
>> Would it be possible to run (a very basic version of) OpenSSH in such an
>> environment using e.g. threads instead of forking new subprocesses? Is
>> there already some known similar configuration (e.g. on another embedded
>> OS)?
> 
> https://matt.ucc.asn.au/dropbear/dropbear.html
> 
> http://dropbear.ucc.asn.narkive.com/EzweMUvJ/single-address-space-no-processes

Hello Luca Filipozzi,

of course you are right: I should have mentioned that my colleague
posted nearly the same question on the dropbear mailing list.

Dropbear is one of the alternatives that we are evaluating. Currently we
are not sure which one would be easier to port. It seems that dropbear
would be at least possible to port.

One difference is that OpenSSH has an integrated SFTP solution while as
far as i know dropbear would need an extra application for that.

Kind regards

Christian Mauderer
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