8158519: Incorrect network mask and broadcast address on Linux when there are multiple IPv4 addresses on an interface

[Doychin Bondzhev]

All I can say is thank you ;-)

I can confirm that it works here to.

On Thu, Jun 2, 2016 at 5:53 PM, Langer, Christoph <christoph.langer at sap.com>
wrote:

> Hi Chris,
>
> I had already created a bug report for this:
> https://bugs.openjdk.java.net/browse/JDK-8158170 in the meanwhile but
> unfortunately, by mistake, I had just sent this information to Doychin and
> not to the mailing list. So, feel free to close and mark my bug as
> duplicate.
>
> I also started work on testing Doychin's approach but did not yet find
> time to finish it - so you overtook me on that one also.
>
> As for AIX, there is no getifaddrs available. So there we have to stick to
> the ioctl approach.
>
> I'll take a deeper look next week.
>
> Best regards
> Christoph
>
> > -----Original Message-----
> > From: net-dev [mailto:net-dev-bounces at openjdk.java.net] On Behalf Of
> Chris
> > Hegarty
> > Sent: Donnerstag, 2. Juni 2016 14:06
> > To: Doychin Bondzhev <doychin at dsoft-bg.com>; OpenJDK Network Dev list
> > <net-dev at openjdk.java.net>
> > Subject: 8158519: Incorrect network mask and broadcast address on Linux
> > when there are multiple IPv4 addresses on an interface
> >
> > Doychin, et al,
> >
> > I finally got time to look at the issue you reported and your suggested
> patch. I
> > filed
> > 8158519 [1] to track the issue. I think your suggested patch may be ok,
> but I just
> > wanted to push on the ioctl approach. I found an alternative, and
> verified that it
> > works as expected. Please take a look, and verify in your environment.
> Then
> > we
> > need to weigh up the two separate approaches.
> >
> > http://cr.openjdk.java.net/~chegar/8158519.00/
> >
> > For the record, I don’t have any specific issue with using getifaddrs, I
> just
> > wanted to
> > see if there was a less invasive change. That said, using getifaddrs
> could lead to
> > cleaner code, but we would need to check the situation on AIX ( which I
> don’t
> > have
> > access to ).
> >
> > -Chris.
> >
> > [1] https://bugs.openjdk.java.net/browse/JDK-8158519
>
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