Description of problem:
Case1:-
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when nfs.rpc-auth-allow is set to an ip_address, it should allow nfs mount request only from the ip_address specified as value to nfs.rpc-auth-allow.

Case2:-
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when nfs.rpc-auth-reject is set to an ip_address, any nfs mount requests from the ip_address should be rejected. 

Version-Release number of selected component (if applicable):
mainline

How reproducible:
often

Steps to Reproduce Case1:
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1.gluster volume set <vol_name> nfs.rpc-auth-allow <client1>
2.mount -t nfs -o vers=3 <volume> <mount_point> from client1

Actual results:
[2012-03-02 18:42:16.653885] T [mount3.c:767:mnt3_check_client_net] 0-nfs-mount: Peer not allowed
[2012-03-02 18:42:16.653917] D [mount3.c:913:mnt3svc_mnt] 0-nfs-mount: Client mount not allowed

Expected results:
Client mount request should be allowed

Steps to Reproduce Case2:
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1.gluster volume set <vol_name> nfs.rpc-auth-reject <client1>
2.mount -t nfs -o vers=3 <volume> <mount_point> from client1

Actual results:
mount request from client1 allowed.

Expected results:
Client mount request should not be allowed

Additional info: