Re: [Qemu-devel] [PATCH] tests: vm: auto_install OpenBSD

[Daniel P . Berrangé]

On Fri, Aug 24, 2018 at 04:52:20PM +0800, Fam Zheng wrote:
> On Fri, 08/24 09:22, Daniel P. Berrangé wrote:
> > On Fri, Aug 24, 2018 at 09:21:26AM +0800, Fam Zheng wrote:
> > > Upgrade OpenBSD to 6.3 using auto_install. Especially, drop SDL1,
> > > include SDL2.
> > > 
> > > One limitation of this patch is that we need a temporary HTTP server on
> > > host 80 port for auto_install, because slirp cannot do guest forward on
> > > "host addr".
> > 
> > That's a pretty big limitation, as port 80 requires root privileges,
> > and that's a pretty strict no for automated testing IMHO.
> > 
> > Why does it have to be port 80 in particular - is it not possible
> > to use 8080 or even better, detect a random free port ?
> 
> OpenBSD autoinstall[1] is hardcoded to fetch from port 80. Maybe we can 
> instead
> persuade it into fetching from a different http server than 10.0.2.2. To do 
> that
> we'd need to implement a new slirp option for either "option tftp-server-name"
> or "next-server" according to the manpage. I'll have to experiment with it to
> see if it will work.
> 
> Or, do you think there are better options to configure the VM network to serve
> the file?

Why not use guestfwd eg

  guestfwd:tcp:10.0.2.1:80-tcp:127.0.0.1:8080

would redirect the guest IP address port 80, to the loopback interface on the
host port 8080. Now you can tell autoinstall to use 10.0.2.1 ?


Regards,
Daniel
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