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Re: [Qemu-devel] [PATCH v1 RFC 23/34] io: add QIOChannelSocket class


From: Daniel P. Berrange
Subject: Re: [Qemu-devel] [PATCH v1 RFC 23/34] io: add QIOChannelSocket class
Date: Thu, 23 Apr 2015 13:31:54 +0100
User-agent: Mutt/1.5.23 (2014-03-12)

On Mon, Apr 20, 2015 at 09:18:49AM +0200, Gerd Hoffmann wrote:
> On Fr, 2015-04-17 at 15:22 +0100, Daniel P. Berrange wrote:
> > Implement a QIOChannel subclass that supports sockets I/O
> > 
> > TBD check errno handling of windows port & fix watch impl
> 
> > +struct QIOChannelSocket {
> > +    QIOChannel parent;
> > +    int fd;
> > +    struct sockaddr_storage localAddr;
> > +    socklen_t localAddrLen;
> > +    struct sockaddr_storage remoteAddr;
> > +    socklen_t remoteAddrLen;
> > +};
> 
> Looks like this supports a single listening socket only, correct?  That
> is a long-standing issue we have in qemu.  Listening on both ipv4 and
> ipv6 doesn't work, except when binding the socket to the ipv6 wildcard
> address which can accept ipv4 connects too on most systems.
> 
> Would be nice to tackle that while putting the socket code upside down
> anyway.

Thanks for reminding me about this limitation - I'll have a think about
how we can solve this problem at the same time too.

Regards,
Daniel
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