[jboss-jira] [JBoss JIRA] (WFCORE-4699) preferIPv6Addresses and preferIPv4Stack System Properties are Mishandled in the Config

[Teresa Miyar Gil (Jira)]

     [ https://issues.jboss.org/browse/WFCORE-4699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Teresa Miyar Gil moved JBEAP-17706 to WFCORE-4699:
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              Project: WildFly Core  (was: JBoss Enterprise Application Platform)
                  Key: WFCORE-4699  (was: JBEAP-17706)
             Workflow: GIT Pull Request workflow   (was: CDW with loose statuses v1)
          Component/s: Server
                           (was: Server)
                           (was: Web (Undertow))
    Affects Version/s: 10.0.0.Final
                           (was: 7.1.4.GA)
                           (was: 7.1.6.GA)
                           (was: 7.2.3.GA)
     QE Test Coverage:   (was: +)


> preferIPv6Addresses and preferIPv4Stack System Properties are Mishandled in the Config
> --------------------------------------------------------------------------------------
>
>                 Key: WFCORE-4699
>                 URL: https://issues.jboss.org/browse/WFCORE-4699
>             Project: WildFly Core
>          Issue Type: Bug
>          Components: Server
>    Affects Versions: 10.0.0.Final
>         Environment: * JBoss EAP 7.1/7.2
> * Interface attached to port 0.0.0.0
> * Red Hat Enterprise Linux 7
> * IPv6 disabled in the kernel
>     sysctl -w net.ipv6.conf.all.disable_ipv6=1
>     sysctl -w net.ipv6.conf.default.disable_ipv6=1
> * System properties -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=true
>            Reporter: Teresa Miyar Gil
>            Assignee: Teresa Miyar Gil
>            Priority: Major
>              Labels: ipv6, startup
>
> Error is thrown on startup.
> Caused by: java.net.SocketException: Protocol family unavailable
> 	at sun.nio.ch.Net.bind0(Native Method)
> 	at sun.nio.ch.Net.bind(Net.java:433)
> 	at sun.nio.ch.Net.bind(Net.java:425)
> 	at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
> 	at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
> 	at org.xnio.nio.NioXnioWorker.createTcpConnectionServer(NioXnioWorker.java:179)
> 	at org.xnio.XnioWorker.createStreamConnectionServer(XnioWorker.java:310)
> 	at io.undertow.protocols.ssl.UndertowXnioSsl.createSslConnectionServer(UndertowXnioSsl.java:301)
> 	at org.wildfly.extension.undertow.HttpsListenerService.startListening(HttpsListenerService.java:127)
> The customer ships a turn key solution that has the two system properties set: -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=true because they are needed for some cases for customers running IPv6,  but others want to harden their systems by disabling IPv4.
> This works on JBoss EAP 6, but it throws the error on JBoss EAP 7 on the same version of Java.  Furthermore, adding just Djava.net.preferIPv4Stack=false has the same issue, even though it the default value, while leaving it off starts.
> This appears to be related to  controller/src/main/java/org/jboss/as/controller/interfaces/OverallInterfaceCriteria.java#pruneIPTypes where if both properties are null, it leaves the set of candidate addresses alone, but it either are set, it strips out all IPv4 addresses.  



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