[libvirt] dnsmasq supporting RA instead of radvd patch
Jim Fehlig
jfehlig at suse.com
Thu Nov 8 23:31:06 UTC 2012
Gene Czarcinski wrote:
> I have a working patch to have dnsmasq support RA instead of radvd.
> However, something has come up and it will be a week to ten days
> before I can get it in shape to submit.
>
> The current patch has three variables added to the _virNetworkObj
> structure: dnsmasqRA flag and both major and minor values for the
> dnsmasq's version.
>
> I use "dnsmasq --version" and then parse out the major/minor version
> values. If major>2, then dnamsqFA=1. If major=2 and minor>=63, then
> dnsmasqRA=1. For all other cases, dnsmasqRA=0.
>
> Code is added to the radvd functions which checks dnsmasqRA and exits
> if it is 1.
>
> Code is added to the dnsmasq configuration file if dnsmasqRa=1. If
> dhcp-range or dhcp-hosts is specified for IPv6, then enable-ra is
> added for stateful (dhcpv6). Otherwise, a special
> "dhcp-range=<ipv6-subnet-address>,ra-only" so that the ManagedFlag
> will be off in the RA packets for stateless operation.
>
> OK, how does that sound? Everyone comfortable with that?
>
> Another thing is that I plan to add a test such that if the radvd
> executable is not valid, the dnsmasqRA=1.
>
> As I was doing this, I also looked through the libvirt.spec file. My,
> what a wonderful example of wizardly that is. Anyway, I thought some
> updates may be in ortder:
>
> - increase the minimum version for dnsmasq from 2.41 to 2.48.
The SLE11 code stream, which will be active for quite some years, has
version 2.45 :(. Why is 2.48 needed? The feature you are after is in
2.63 right?
Regards,
Jim
>
> - why is radvd required for rpmbuild?
>
> - in light of my patch, make radvd an optional runtime requirement. I
> am not a spec file expert by any means but there must be a way to not
> require radvd if dnsmasq >- 2.63.
>
> Comments?
>
> Gene
>
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