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NFS Return -EPERM if no supported or matching SECINFO flavor
Do not return RPC_AUTH_UNIX if SEINFO reply tests fail. This prevents an infinite loop of NFS4ERR_WRONGSEC for non RPC_AUTH_UNIX mounts. Without this patch, a mount with no sec= option to a server that does not include RPC_AUTH_UNIX in the SECINFO return can be presented with an attemtp to use RPC_AUTH_UNIX which will result in an NFS4ERR_WRONG_SEC which will prompt the SECINFO call which will again try RPC_AUTH_UNIX.... Signed-off-by: Andy Adamson <[email protected]> Tested-By: Steve Dickson <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
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