getting a callback ip address for nfsv4 client

[Julian Elischer]

Doug Rabson wrote:

> 
> While the RPC code doesn't currently expose the socket or local address, 
> I don't think there would be many problems in adding a client control 
> operation to get the local address. 

I like that option..

> Its not a good idea to allow access
> to the actual socket since that will change over reconnects. In theory, 
> the local address may also change over reconnects but that seems less 
> likely to be a problem. Also, the reconnect machinery doesn't actually 
> create the connection until the first RPC so some care would be needed 
> to account for that.
> 


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