Examples of XDR

org.apache.hadoop.oncrpc.XDR
Utility class for building XDR messages based on RFC 4506.
This class maintains a buffer into which java types are written as XDR types for building XDR messages. Similarly this class can be used to get java types from an XDR request or response.
Currently only a subset of XDR types defined in RFC 4506 are supported.

Examples of org.apache.hadoop.oncrpc.XDR

    RpcCall rpcCall = (RpcCall) info.header();
    final NFSPROC3 nfsproc3 = NFSPROC3.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();
    InetAddress client = ((InetSocketAddress) info.remoteAddress())
        .getAddress();
    Channel channel = info.channel();


    Credentials credentials = rpcCall.getCredential();
    // Ignore auth only for NFSPROC3_NULL, especially for Linux clients.
    if (nfsproc3 != NFSPROC3.NULL) {
      if (credentials.getFlavor() != AuthFlavor.AUTH_SYS
          && credentials.getFlavor() != AuthFlavor.RPCSEC_GSS) {
        LOG.info("Wrong RPC AUTH flavor, " + credentials.getFlavor()
            + " is not AUTH_SYS or RPCSEC_GSS.");
        XDR reply = new XDR();
        RpcDeniedReply rdr = new RpcDeniedReply(xid,
            RpcReply.ReplyState.MSG_ACCEPTED,
            RpcDeniedReply.RejectState.AUTH_ERROR, new VerifierNone());
        rdr.write(reply);


        ChannelBuffer buf = ChannelBuffers.wrappedBuffer(reply.asReadOnlyWrap()
            .buffer());
        RpcResponse rsp = new RpcResponse(buf, info.remoteAddress());
        RpcUtil.sendRpcResponse(ctx, rsp);
        return;
      }

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Examples of org.apache.hadoop.oncrpc.XDR

  
  @Test
  public void testSerializeDeserialize() {
    // Serialize NfsTime
    NfsTime t1 = new NfsTime(1001);
    XDR xdr = new XDR();
    t1.serialize(xdr);
    
    // Deserialize it back
    NfsTime t2 = NfsTime.deserialize(xdr.asReadOnlyWrap());
    
    // Ensure the NfsTimes are equal
    Assert.assertEquals(t1, t2);
  }

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Examples of org.apache.hadoop.oncrpc.XDR


public class TestFileHandle {
  @Test
  public void testConstructor() {
    FileHandle handle = new FileHandle(1024);
    XDR xdr = new XDR();
    handle.serialize(xdr);
    Assert.assertEquals(handle.getFileId(), 1024);


    // Deserialize it back 
    FileHandle handle2 = new FileHandle();
    handle2.deserialize(xdr.asReadOnlyWrap());
    Assert.assertEquals("Failed: Assert 1024 is id ", 1024, 
            handle.getFileId());
  }

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Examples of org.apache.hadoop.oncrpc.XDR

    RpcCall rpcCall = (RpcCall) info.header();
    final NFSPROC3 nfsproc3 = NFSPROC3.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();
    InetAddress client = ((InetSocketAddress) info.remoteAddress())
        .getAddress();
    Credentials credentials = rpcCall.getCredential();
    
    // Ignore auth only for NFSPROC3_NULL, especially for Linux clients.
    if (nfsproc3 != NFSPROC3.NULL) {
      if (credentials.getFlavor() != AuthFlavor.AUTH_SYS
          && credentials.getFlavor() != AuthFlavor.RPCSEC_GSS) {
        LOG.info("Wrong RPC AUTH flavor, " + credentials.getFlavor()
            + " is not AUTH_SYS or RPCSEC_GSS.");
        XDR reply = new XDR();
        RpcDeniedReply rdr = new RpcDeniedReply(xid,
            RpcReply.ReplyState.MSG_ACCEPTED,
            RpcDeniedReply.RejectState.AUTH_ERROR, new VerifierNone());
        rdr.write(reply);


        ChannelBuffer buf = ChannelBuffers.wrappedBuffer(reply.asReadOnlyWrap()
            .buffer());
        RpcResponse rsp = new RpcResponse(buf, info.remoteAddress());
        RpcUtil.sendRpcResponse(ctx, rsp);
        return;
      }

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Examples of org.apache.hadoop.oncrpc.XDR

    }
  }


  @Test(timeout = 1000)
  public void testRegistration() throws IOException, InterruptedException {
    XDR req = new XDR();
    RpcCall.getInstance(++xid, RpcProgramPortmap.PROGRAM,
        RpcProgramPortmap.VERSION,
        RpcProgramPortmap.PMAPPROC_SET,
        new CredentialsNone(), new VerifierNone()).write(req);


    PortmapMapping sent = new PortmapMapping(90000, 1,
        PortmapMapping.TRANSPORT_TCP, 1234);
    sent.serialize(req);


    byte[] reqBuf = req.getBytes();
    DatagramSocket s = new DatagramSocket();
    DatagramPacket p = new DatagramPacket(reqBuf, reqBuf.length,
        pm.getUdpServerLoAddress());
    try {
      s.send(p);

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Examples of org.apache.hadoop.oncrpc.XDR

    // Get inodeId of /tmp
    HdfsFileStatus status = nn.getRpcServer().getFileInfo(testdir);
    long dirId = status.getFileId();


    // Create related part of the XDR request
    XDR xdr_req = new XDR();
    FileHandle handle = new FileHandle(dirId);
    handle.serialize(xdr_req);
    xdr_req.writeLongAsHyper(0); // cookie
    xdr_req.writeLongAsHyper(0); // verifier
    xdr_req.writeInt(100); // count


    READDIR3Response response = nfsd.readdir(xdr_req.asReadOnlyWrap(),
        securityHandler, new InetSocketAddress("localhost", 1234));
    List<Entry3> dirents = response.getDirList().getEntries();
    assertTrue(dirents.size() == 5); // inculding dot, dotdot


    // Test start listing from f2
    status = nn.getRpcServer().getFileInfo(testdir + "/f2");
    long f2Id = status.getFileId();


    // Create related part of the XDR request
    xdr_req = new XDR();
    handle = new FileHandle(dirId);
    handle.serialize(xdr_req);
    xdr_req.writeLongAsHyper(f2Id); // cookie
    xdr_req.writeLongAsHyper(0); // verifier
    xdr_req.writeInt(100); // count


    response = nfsd.readdir(xdr_req.asReadOnlyWrap(), securityHandler,
        new InetSocketAddress("localhost", 1234));
    dirents = response.getDirList().getEntries();
    assertTrue(dirents.size() == 1);
    Entry3 entry = dirents.get(0);
    assertTrue(entry.getName().equals("f3"));


    // When the cookie is deleted, list starts over no including dot, dotdot
    hdfs.delete(new Path(testdir + "/f2"), false);


    response = nfsd.readdir(xdr_req.asReadOnlyWrap(), securityHandler,
        new InetSocketAddress("localhost", 1234));
    dirents = response.getDirList().getEntries();
    assertTrue(dirents.size() == 2); // No dot, dotdot
  }

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Examples of org.apache.hadoop.oncrpc.XDR

    // Get inodeId of /tmp
    HdfsFileStatus status = nn.getRpcServer().getFileInfo(testdir);
    long dirId = status.getFileId();
    
    // Create related part of the XDR request
    XDR xdr_req = new XDR();
    FileHandle handle = new FileHandle(dirId);
    handle.serialize(xdr_req);
    xdr_req.writeLongAsHyper(0); // cookie
    xdr_req.writeLongAsHyper(0); // verifier
    xdr_req.writeInt(100); // dirCount
    xdr_req.writeInt(1000); // maxCount


    READDIRPLUS3Response responsePlus = nfsd.readdirplus(xdr_req
        .asReadOnlyWrap(), securityHandler, new InetSocketAddress("localhost",
        1234));
    List<EntryPlus3> direntPlus = responsePlus.getDirListPlus().getEntries();
    assertTrue(direntPlus.size() == 5); // including dot, dotdot


    // Test start listing from f2
    status = nn.getRpcServer().getFileInfo(testdir + "/f2");
    long f2Id = status.getFileId();


    // Create related part of the XDR request
    xdr_req = new XDR();
    handle = new FileHandle(dirId);
    handle.serialize(xdr_req);
    xdr_req.writeLongAsHyper(f2Id); // cookie
    xdr_req.writeLongAsHyper(0); // verifier
    xdr_req.writeInt(100); // dirCount
    xdr_req.writeInt(1000); // maxCount


    responsePlus = nfsd.readdirplus(xdr_req.asReadOnlyWrap(), securityHandler,
        new InetSocketAddress("localhost", 1234));
    direntPlus = responsePlus.getDirListPlus().getEntries();
    assertTrue(direntPlus.size() == 1);
    EntryPlus3 entryPlus = direntPlus.get(0);
    assertTrue(entryPlus.getName().equals("f3"));


    // When the cookie is deleted, list starts over no including dot, dotdot
    hdfs.delete(new Path(testdir + "/f2"), false);


    responsePlus = nfsd.readdirplus(xdr_req.asReadOnlyWrap(), securityHandler,
        new InetSocketAddress("localhost", 1234));
    direntPlus = responsePlus.getDirListPlus().getEntries();
    assertTrue(direntPlus.size() == 2); // No dot, dotdot
  }

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Examples of org.apache.hadoop.oncrpc.XDR

          + request.getHandle().getFileId());
      WccData fileWcc = new WccData(latestAttr.getWccAttr(), latestAttr);
      WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3ERR_IO,
          fileWcc, 0, request.getStableHow(), Nfs3Constant.WRITE_COMMIT_VERF);
      Nfs3Utils.writeChannel(channel,
          response.writeHeaderAndResponse(new XDR(), xid, new VerifierNone()),
          xid);
    } else {
      // Update the write time first
      updateLastAccessTime();
      
      // Handle repeated write requests (same xid or not).
      // If already replied, send reply again. If not replied, drop the
      // repeated request.
      WriteCtx existantWriteCtx = checkRepeatedWriteRequest(request, channel,
          xid);
      if (existantWriteCtx != null) {
        if (!existantWriteCtx.getReplied()) {
          if (LOG.isDebugEnabled()) {
            LOG.debug("Repeated write request which hasn't be served: xid="
                + xid + ", drop it.");
          }
        } else {
          if (LOG.isDebugEnabled()) {
            LOG.debug("Repeated write request which is already served: xid="
                + xid + ", resend response.");
          }
          WccData fileWcc = new WccData(latestAttr.getWccAttr(), latestAttr);
          WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3_OK,
              fileWcc, request.getCount(), request.getStableHow(),
              Nfs3Constant.WRITE_COMMIT_VERF);
          Nfs3Utils.writeChannel(channel, response.writeHeaderAndResponse(
              new XDR(), xid, new VerifierNone()), xid);
        }
      } else {
        // not a repeated write request
        receivedNewWriteInternal(dfsClient, request, channel, xid,
            asyncDataService, iug);

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Examples of org.apache.hadoop.oncrpc.XDR

          request.getData().array(),
          Nfs3Utils.getFileIdPath(request.getHandle()), wccData, iug);
    }
    updateLastAccessTime();
    Nfs3Utils.writeChannel(channel,
        response.writeHeaderAndResponse(new XDR(), xid, new VerifierNone()),
        xid);
  }

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Examples of org.apache.hadoop.oncrpc.XDR

        }
        WccData fileWcc = new WccData(preOpAttr, latestAttr);
        WRITE3Response response = new WRITE3Response(Nfs3Status.NFS3_OK,
            fileWcc, count, stableHow, Nfs3Constant.WRITE_COMMIT_VERF);
        Nfs3Utils
            .writeChannel(channel, response.writeHeaderAndResponse(new XDR(),
                xid, new VerifierNone()), xid);
        writeCtx.setReplied(true);
      }
    }
  }

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