Re: [Qemu-devel] [PATCH 0/4] Allow blockdev-add for SSH

[Kevin Wolf <kwolf@redhat.com>]

Am 12.10.2016 um 18:20 hat Ashijeet Acharya geschrieben:
> On Wed, Oct 12, 2016 at 9:31 PM, Kevin Wolf <kwolf@redhat.com> wrote:
> > Am 11.10.2016 um 09:37 hat Ashijeet Acharya geschrieben:
> >> This series adds blockdev-add support for SSH block driver.
> >>
> >> Patch 1 prepares the code for the addition of a new option prefix,
> >> which is "server.". This is accomplished by adding a
> >> ssh_has_filename_options_conflict() function which helps to iterate
> >> over the various options and check for conflict.
> >>
> >> Patch 2 first adds InetSocketAddress compatibility to SSH block driver
> >> and then makes it accept a InetSocketAddress under the "server" option.
> >> The old options "host" and "port" are supported as legacy options and
> >> then translated to the respective InetSocketAddress representation.
> >>
> >> Patch 3 drops the usage of "host" and "port" outside of
> >> ssh_has_filename_options_conflict() and
> >> ssh_process_legacy_socket_options() functions in order to make them
> >> legacy options completely.
> >>
> >> Patch 4 helps to allow blockdev-add support for the SSH block driver
> >> by making the SSH option available.
> >
> > Commented on patch 2, the rest looks good to me at first sight.
> 
> Yes, I am going through that currently and will ask you if I have any queries.
> 
> >
> > Just curious, what kind of testing did you give the series?
> 
> First thing I made sure if I wasn't breaking anything. Basically I
> checked if blockdev-add worked with it and then if I am able to remove
> it with x-blockdev-del.

Did you try out all of the options that we support, including those in
InetSocketAddress?

> Also, there were no major changes which could
> make the patches to break. I don't see tests available for SSH either
> so there was nothing much I can do.
> Do you have anything in mind?

Actually, qemu-iotests has ssh support. It's probably not run very
often, so I'm not sure whether it completely passes on master, but worth
a try anyway. Check out ./check --help in tests/qemu-iotests, you'll
probably want something like './check -T -ssh'.

The commit message that added ssh support to the tests says:

    Note in order to run these tests on ssh, you must be running a local
    ssh daemon, and that daemon must accept loopback connections, and
    ssh-agent has to be set up to allow logins on the local daemon.  In
    other words, the following command should just work without demanding
    any passphrase:

     ssh localhost

Hope this is helpful.

Kevin