public override XDR Mnt(XDR xdr, XDR @out, int xid, IPAddress client)
{
if (hostsMatcher == null)
{
return(MountResponse.WriteMNTResponse(Nfs3Status.Nfs3errAcces, @out, xid, null));
}
AccessPrivilege accessPrivilege = hostsMatcher.GetAccessPrivilege(client);
if (accessPrivilege == AccessPrivilege.None)
{
return(MountResponse.WriteMNTResponse(Nfs3Status.Nfs3errAcces, @out, xid, null));
}
string path = xdr.ReadString();
if (Log.IsDebugEnabled())
{
Log.Debug("MOUNT MNT path: " + path + " client: " + client);
}
string host = client.GetHostName();
if (Log.IsDebugEnabled())
{
Log.Debug("Got host: " + host + " path: " + path);
}
if (!exports.Contains(path))
{
Log.Info("Path " + path + " is not shared.");
MountResponse.WriteMNTResponse(Nfs3Status.Nfs3errNoent, @out, xid, null);
return(@out);
}
FileHandle handle = null;
try
{
HdfsFileStatus exFileStatus = dfsClient.GetFileInfo(path);
handle = new FileHandle(exFileStatus.GetFileId());
}
catch (IOException e)
{
Log.Error("Can't get handle for export:" + path, e);
MountResponse.WriteMNTResponse(Nfs3Status.Nfs3errNoent, @out, xid, null);
return(@out);
}
System.Diagnostics.Debug.Assert((handle != null));
Log.Info("Giving handle (fileId:" + handle.GetFileId() + ") to client for export "
+ path);
mounts.AddItem(new MountEntry(host, path));
MountResponse.WriteMNTResponse(Nfs3Status.Nfs3Ok, @out, xid, handle.GetContent());
return(@out);
}
protected override void HandleInternal(ChannelHandlerContext ctx, RpcInfo info)
{
RpcCall rpcCall = (RpcCall)info.Header();
MountInterface.MNTPROC mntproc = MountInterface.MNTPROC.FromValue(rpcCall.GetProcedure
());
int xid = rpcCall.GetXid();
byte[] data = new byte[info.Data().ReadableBytes()];
info.Data().ReadBytes(data);
XDR xdr = new XDR(data);
XDR @out = new XDR();
IPAddress client = ((IPEndPoint)info.RemoteAddress()).Address;
if (mntproc == MountInterface.MNTPROC.Null)
{
@out = NullOp(@out, xid, client);
}
else
{
if (mntproc == MountInterface.MNTPROC.Mnt)
{
// Only do port monitoring for MNT
if (!DoPortMonitoring(info.RemoteAddress()))
{
@out = MountResponse.WriteMNTResponse(Nfs3Status.Nfs3errAcces, @out, xid, null);
}
else
{
@out = Mnt(xdr, @out, xid, client);
}
}
else
{
if (mntproc == MountInterface.MNTPROC.Dump)
{
@out = Dump(@out, xid, client);
}
else
{
if (mntproc == MountInterface.MNTPROC.Umnt)
{
@out = Umnt(xdr, @out, xid, client);
}
else
{
if (mntproc == MountInterface.MNTPROC.Umntall)
{
Umntall(@out, xid, client);
}
else
{
if (mntproc == MountInterface.MNTPROC.Export)
{
// Currently only support one NFS export
IList <NfsExports> hostsMatchers = new AList <NfsExports>();
if (hostsMatcher != null)
{
hostsMatchers.AddItem(hostsMatcher);
@out = MountResponse.WriteExportList(@out, xid, exports, hostsMatchers);
}
else
{
// This means there are no valid exports provided.
RpcAcceptedReply.GetInstance(xid, RpcAcceptedReply.AcceptState.ProcUnavail, new VerifierNone
()).Write(@out);
}
}
else
{
// Invalid procedure
RpcAcceptedReply.GetInstance(xid, RpcAcceptedReply.AcceptState.ProcUnavail, new VerifierNone
()).Write(@out);
}
}
}
}
}
}
ChannelBuffer buf = ChannelBuffers.WrappedBuffer(@out.AsReadOnlyWrap().Buffer());
RpcResponse rsp = new RpcResponse(buf, info.RemoteAddress());
RpcUtil.SendRpcResponse(ctx, rsp);
}