How to connect ssh and /dev/nmdm devices Was:( Re: Native Linux guest in Bhyve (no grub2-bhyve) status? )

[Willem Jan Withagen]

On 2015-01-05 9:41, Willem Jan Withagen wrote:
> On 2015-01-05 0:28, Peter Grehan wrote:
>> Hi Willem,
>>
>>> Would it it be possible in the meantime to enhance grub2-bhyve with the
>>> same possibility as bhyve itself has for the console?
>>>
>>> So I can redirect grub screen access to /dev/nmdm12041, and one can even
>>> use this channel to see the grubscreen during rebooting.
>>>
>>> Or if it is not that hard, give some pointers to write it myself.
>>
>>   Conrad contributed this to grub-bhyve with
>>       https://github.com/grehan-freebsd/grub2-bhyve/pull/2
>>
>>   It's available in v0.30 which has been in ports for a while now:
>>
>>       https://github.com/grehan-freebsd/grub2-bhyve/releases/tag/v0.30
>
> Right,
>
> Did miss that, I guess.
> I'll upgrade my bhyve-grub.

Yup, works really nice.

Now in a continuance from this...

What is the easiest way to "propagate"  the full-duplex tty stream from 
a SSH-login to a /dev/nmdmXXXXA.

This will give easy access to the console screens.

one would type:
	ssh -p XXXX user at management-ip
and end up at the console on /dev/nmdmxxxxA

Currently I'm using tip for this, but that also requires hacking new VMs 
into /etc/remote.

So a very basic TIP, without the serial/ACU/speed stuff, would really be 
useful. Preferably all signals are sent thru as well.
And if this might not be 100% secure, it would require an ssh-jailed 
setup. A bit like sftp.

hints and or suggestion welcome.

--WjW
--WjW