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CIFS in 1.4.0 and debugging mysteries

simon

Alfresco,

I'm upgrading from 1.3.2 Enterprise to 1.4.0 Enterprise on a RedHat 4 Enterprise Linux server. I choose for the full package so a complete new Tomcat installation (not only deploying the new WAR file). CIFS worked fine in 1.3.2 in our setup where we used passthru with Active Directory.

Now, in 1.4.0 I tried to copy the settings I had in my file-servers-custom.xml file in 1.3.2 to enable CIFS with AD passthru:

   <config evaluator="string-compare" condition="CIFS Server">
      <host name="alfrescotest" domain="comp"/>
      <comment>Alfresco Alhambra CIFS Server</comment>

      <!– Set to the broadcast mask for the subnet –>
      <broadcast>132.158.55.255</broadcast>

      <!– Use Java socket based NetBIOS over TCP/IP and native SMB on linux –>
      <tcpipSMB platforms="linux,solaris,macosx"/>
      <netBIOSSMB platforms="linux,solaris,macosx"/>
      <hostAnnounce interval="5"/>

      <!– Use Win32 NetBIOS interface on Windows –>
      <Win32NetBIOS/>
      <Win32Announce interval="5"/>

      <sessionDebug flags="Negotiate,Socket"/>
   </config>
   … some other settings …
   <config evaluator="string-compare" condition="Filesystem Security">
      <authenticator type="passthru">
         <Server>ldapserv</Server>
      </authenticator>
   </config>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

This doesn't work. I get the following error when I try to connect with Windows and the client says "Network resource no longer available" after I gave the correct credentials (it keeps asking my username and password when I enter the wrong credentials so it seems authorization works).

12:06:24,609 ERROR [org.alfresco.smb.protocol] Closing session due to exception
java.lang.NullPointerException
        at org.alfresco.repo.security.authentication.AbstractAuthenticationComponent.
setCurrentAuthentication(AbstractAuthenticationComponent.java:137)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:335)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:181)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)
        at $Proxy16.setCurrentAuthentication(Unknown Source)
        at org.alfresco.filesys.server.auth.CifsAuthenticator.setCurrentUser(CifsAuthenticator.java:955)
        at org.alfresco.filesys.smb.server.SMBSrvSession.findVirtualCircuit(SMBSrvSession.java:287)
        at org.alfresco.filesys.smb.server.NTProtocolHandler.procChainedTreeConnectAndX(NTProtocolHandler.java:584)
        at org.alfresco.filesys.smb.server.NTProtocolHandler.procAndXCommands(NTProtocolHandler.java:505)
        at org.alfresco.filesys.smb.server.NTProtocolHandler.procAndXCommands(NTProtocolHandler.java:458)
        at org.alfresco.filesys.smb.server.NTProtocolHandler.procSessionSetup(NTProtocolHandler.java:418)
        at org.alfresco.filesys.smb.server.NTProtocolHandler.runProtocol(NTProtocolHandler.java:213)
        at org.alfresco.filesys.smb.server.SMBSrvSession.run(SMBSrvSession.java:1334)
        at java.lang.Thread.run(Thread.java:595)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

And now comes the magic… When I enable one or both of the following options in the log4j file CIFS works!

log4j.logger.org.alfresco.smb.protocol=debug
log4j.logger.org.alfresco.smb.protocol.auth=debug‍‍

I don't know why or how but with debugging turned on it goes fine?! Any idea how to solve this?

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Comments

gary_spencer

Hi,

Do you have an alfresco/extension/file-servers-custom.xml file ?. Could you email me your alfresco.log file.

Thanks

Gary

lme

Hi,

I have the same problem here after a migration from Alfresco 1.3.1E to 1.4.0E.

Simon or Gary, did you find a solution ?

Laurent

lme

Here is a solution that worked for me.

Now, I use NTLM authentication insteed of the passthru authentication.

- Alfresco 1.4.0E (upgraded from Alfresco 1.3.1E) on a Debian/Sarge
- Samba 3.0.14a from Debian/Sarge
- Alfresco and Samba share the same LDAP backend
- Alfresco and Samba are on different hosts

- tomcat/webapps/alfresco/WEB-INF/classes/alfresco/file-servers.xml :

no modification

- tomcat/shared/classes/alfresco/extension/ntlm-authentication-context.xml :

<beans>
    <bean id="authenticationDao" class="org.alfresco.repo.security.authentication.ntlm.NullMutableAuthenticationDao" />
    <bean id="authenticationComponentImpl" class="org.alfresco.repo.security.authentication.ntlm.NTLMAuthenticationComponentImpl">
        <property name="servers">
            <value>samba-server.domain.tld</value>
        </property>
        <property name="personService">
            <ref bean="personService" />
        </property>
        <property name="nodeService">
            <ref bean="nodeService" />
        </property>
        <property name="guestAccess">
            <value>false</value>
        </property>
    </bean>
</beans>
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

- tomcat/shared/classes/alfresco/extension/file-servers-custom.xml :

<alfresco-config area="file-servers">

   <config evaluator="string-compare" condition="CIFS Server">
      <host name="${localname}_A" domain="DOMAIN"/>
      <broadcast>192.168.1.255</broadcast>
   </config>

   <config evaluator="string-compare" condition="Filesystems" replace="true">
      <filesystems>
         <filesystem name="Alfresco">
            <store>workspace://SpacesStore</store>
            <rootPath>/app:company_home</rootPath>
            <offlineFiles/>
         </filesystem>
      </filesystems>
   </config>

</alfresco-config>
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

simon

@ Ime: Thanks for the reply. Glad you solved it but NTLM is a no go for us. I need the passthru authentication.

@ Gary: Did you get the log file I sent you on 2006.12.19?

pparkinson

Hey Simon,

Did you find a solution for this problem? I get the same error under the same circumstances.

gary_spencer

Hi,

There have been a few updates to the passthru authenticator in the latest code to fix these problems.

Cheers

Gary

pparkinson

Hi Gary,

We're attempting to upgrade to 1.4.1. and I'm using the 1.4.1 jboss bundle Alfresco provides. You mentioned latest code I thought 1.4.1 was the latest released code? Are you speaking of unreleased code? If so, how can I resolve the problem now so that I can finish our upgrade?

pparkinson

Thanks Gary and Simon the fix worked!