[OpenAFS] windows explorer refresh required in particular circumstances

[Jeffrey Altman]

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Jeffrey Altman wrote:
> Jason Cowart wrote:
>> We've traditionally had Widows users mount AFS drives by mapping to a
>> drive letter using the Net Use command.  Recently we've begun
>> experimenting with instead using UNC paths to create a connection in "My
>> Network Places."
>>
>> In testing this a couple of our staff have run into a problem where they
>> have to manually refresh Windows explorer to see updates to the AFS
>> directory.  This only occurs for them when both of the following are true:
>>
>> * They're using the UNC path to access the directory
>> * They're logged into our Windows domain
>>
>> If they log directly into the local machine, the problem does not
>> occur.  If they log into the domain, but map the directory to a drive
>> letter it doesn't occur.
>>
>> This is using OpenAFS for Windows 1.5.10.
>>
>> Any thoughts?
> 
> Sounds like a bug somewhere.  This should probably be debugged by
> adding some custom logging to the SMB Notification routines and the
> AFS Callbacks so that the differences between the various scenarios
> can be narrowed in scope.
> 
> Jeffrey Altman

Looks like a bug in Windows.  When the none domain account is used
OpenAFS receives:

smb_ReceiveNTTranNotifyChange fidp 0x03833EA8 scp 0x102AB834 file "\Private"
Request for NotifyChange filter 0x17 fid 112 wtree 0
      Notify Change File Name
      Notify Change Directory Name
      Notify Change Attributes
      Notify Change Last Write

When the domain account is used, it does not.

If OpenAFS doesn't receive a request for notification, there is nothing
for it to respond to with a notification.

Jeffrey Altman



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