Re: [Qemu-devel] [PATCH 0/2] ssh: add password and privkey auth methods

[Pino Toscano]

On Friday, 26 July 2019 16:27:11 CEST Richard W.M. Jones wrote:
> On Fri, Jul 26, 2019 at 04:09:52PM +0200, Pino Toscano wrote:
> > These two patches add the password and private key authentication
> > methods to the ssh block driver, using secure objects for
> > passwords/passphrases.
> 
> I was attempting to test this but couldn't work out the full command
> line to use it (with qemu-img).  I got as far as:
> 
> $ ./qemu-img convert -p 'json:{ "file.driver": "ssh", "file.host": "devr7", 
> "file.path": "/var/tmp/root", "file.password-secret": "..." }' /var/tmp/root
> 
> I guess the secret should be specified using --object, but at that
> point I gave up.

Almost there :) add e.g.
  --object 'secret,id=sec0,file=passwd'
as parameter for the convert command (so after it, not before), and then
set 'sec0' as value for file.password-secret.  Of course 'sec0' is
arbitrary, any other QEMU id will do.

A long helpful comment in include/crypto/secret.h explains the basics
of the crypto objects.

-- 
Pino Toscano

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