Re: [PATCH 1/4] tests: Fix virnetsockettest on FreeBSD

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On Fri, 2018-04-27 at 16:32 +0100, Daniel P. Berrangé wrote:
> > +        /* From FreeBSD's inet6(4):
> > +         *
> > +         *   By default, FreeBSD does not route IPv4 traffic to AF_INET6
> > +         *   sockets.  The default behavior intentionally violates RFC2553
> > +         *   for security reasons.  Listen to two sockets if you want to
> > +         *   accept both IPv4 and IPv6 traffic.
> > +         *
> > +         * So this test will never work on FreeBSD, and need to skip it. */
> 
> This code is not supposed to be relying on IPV6_V6ONLY. The testSocketTCPAccept
> method is supposed to create multiple listener sockets. We passing NULL as the
> listen address, which means we are supposed to get two sockets, one listening
> on IPv4 and one on IPv6. So the comment is right about FreeBSD being different
> but that situation should not apply to this test AFAIK.
> 
> So I'm wondering why it hasn't listened on both sockets...

Mh, you're right, the IPv6 thing was just a red herring: the test
case just seems to fail or succeed pretty much randomly.

I tried compiling out everything but the basic "Socket TCP/IPv4
Accept" part, and even that didn't manage to run successfully for
any extended lenght of time in a tight loop.

I'm afraid we're going to need someone with more network expertise
than I have to look into it.

-- 
Andrea Bolognani / Red Hat / Virtualization

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