Examples with SYMLINK3Request org.apache.hadoop.nfs.nfs3.request.SYMLINK3Request used on opensource projects

Example 1 with SYMLINK3Request

use of org.apache.hadoop.nfs.nfs3.request.SYMLINK3Request in project hadoop by apache.

the class RpcProgramNfs3 method symlink.

@VisibleForTesting
SYMLINK3Response symlink(XDR xdr, SecurityHandler securityHandler, SocketAddress remoteAddress) {
    SYMLINK3Response response = new SYMLINK3Response(Nfs3Status.NFS3_OK);
    if (!checkAccessPrivilege(remoteAddress, AccessPrivilege.READ_WRITE)) {
        response.setStatus(Nfs3Status.NFS3ERR_ACCES);
        return response;
    }
    DFSClient dfsClient = clientCache.getDfsClient(securityHandler.getUser());
    if (dfsClient == null) {
        response.setStatus(Nfs3Status.NFS3ERR_SERVERFAULT);
        return response;
    }
    SYMLINK3Request request;
    try {
        request = SYMLINK3Request.deserialize(xdr);
    } catch (IOException e) {
        LOG.error("Invalid SYMLINK request");
        response.setStatus(Nfs3Status.NFS3ERR_INVAL);
        return response;
    }
    FileHandle dirHandle = request.getHandle();
    String name = request.getName();
    String symData = request.getSymData();
    String linkDirIdPath = Nfs3Utils.getFileIdPath(dirHandle);
    // Don't do any name check to source path, just leave it to HDFS
    String linkIdPath = linkDirIdPath + "/" + name;
    if (LOG.isDebugEnabled()) {
        LOG.debug("NFS SYMLINK, target: " + symData + " link: " + linkIdPath + " client: " + remoteAddress);
    }
    try {
        WccData dirWcc = response.getDirWcc();
        WccAttr preOpAttr = Nfs3Utils.getWccAttr(dfsClient, linkDirIdPath);
        dirWcc.setPreOpAttr(preOpAttr);
        dfsClient.createSymlink(symData, linkIdPath, false);
        // Set symlink attr is considered as to change the attr of the target
        // file. So no need to set symlink attr here after it's created.
        HdfsFileStatus linkstat = dfsClient.getFileLinkInfo(linkIdPath);
        Nfs3FileAttributes objAttr = Nfs3Utils.getNfs3FileAttrFromFileStatus(linkstat, iug);
        dirWcc.setPostOpAttr(Nfs3Utils.getFileAttr(dfsClient, linkDirIdPath, iug));
        return new SYMLINK3Response(Nfs3Status.NFS3_OK, new FileHandle(objAttr.getFileId()), objAttr, dirWcc);
    } catch (IOException e) {
        LOG.warn("Exception: " + e);
        int status = mapErrorStatus(e);
        response.setStatus(status);
        return response;
    }
}

Example 2 with SYMLINK3Request

use of org.apache.hadoop.nfs.nfs3.request.SYMLINK3Request in project hadoop by apache.

the class TestRpcProgramNfs3 method testReadlink.

@Test(timeout = 60000)
public void testReadlink() throws Exception {
    // Create a symlink first.
    HdfsFileStatus status = nn.getRpcServer().getFileInfo(testdir);
    long dirId = status.getFileId();
    XDR xdr_req = new XDR();
    FileHandle handle = new FileHandle(dirId);
    SYMLINK3Request req = new SYMLINK3Request(handle, "fubar", new SetAttr3(), "bar");
    req.serialize(xdr_req);
    SYMLINK3Response response = nfsd.symlink(xdr_req.asReadOnlyWrap(), securityHandler, new InetSocketAddress("localhost", 1234));
    assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK, response.getStatus());
    // Now perform readlink operations.
    FileHandle handle2 = response.getObjFileHandle();
    XDR xdr_req2 = new XDR();
    READLINK3Request req2 = new READLINK3Request(handle2);
    req2.serialize(xdr_req2);
    // Attempt by an unpriviledged user should fail.
    READLINK3Response response1 = nfsd.readlink(xdr_req2.asReadOnlyWrap(), securityHandlerUnpriviledged, new InetSocketAddress("localhost", 1234));
    assertEquals("Incorrect return code:", Nfs3Status.NFS3ERR_ACCES, response1.getStatus());
    // Attempt by a priviledged user should pass.
    READLINK3Response response2 = nfsd.readlink(xdr_req2.asReadOnlyWrap(), securityHandler, new InetSocketAddress("localhost", 1234));
    assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK, response2.getStatus());
}

Example 3 with SYMLINK3Request

use of org.apache.hadoop.nfs.nfs3.request.SYMLINK3Request in project hadoop by apache.

the class SYMLINK3Request method deserialize.

public static SYMLINK3Request deserialize(XDR xdr) throws IOException {
    FileHandle handle = readHandle(xdr);
    String name = xdr.readString();
    SetAttr3 symAttr = new SetAttr3();
    symAttr.deserialize(xdr);
    String symData = xdr.readString();
    return new SYMLINK3Request(handle, name, symAttr, symData);
}

Example 4 with SYMLINK3Request

use of org.apache.hadoop.nfs.nfs3.request.SYMLINK3Request in project hadoop by apache.

the class TestRpcProgramNfs3 method testSymlink.

@Test(timeout = 60000)
public void testSymlink() throws Exception {
    HdfsFileStatus status = nn.getRpcServer().getFileInfo(testdir);
    long dirId = status.getFileId();
    XDR xdr_req = new XDR();
    FileHandle handle = new FileHandle(dirId);
    SYMLINK3Request req = new SYMLINK3Request(handle, "fubar", new SetAttr3(), "bar");
    req.serialize(xdr_req);
    // Attempt by an unprivileged user should fail.
    SYMLINK3Response response1 = nfsd.symlink(xdr_req.asReadOnlyWrap(), securityHandlerUnpriviledged, new InetSocketAddress("localhost", 1234));
    assertEquals("Incorrect return code:", Nfs3Status.NFS3ERR_ACCES, response1.getStatus());
    // Attempt by a privileged user should pass.
    SYMLINK3Response response2 = nfsd.symlink(xdr_req.asReadOnlyWrap(), securityHandler, new InetSocketAddress("localhost", 1234));
    assertEquals("Incorrect return code:", Nfs3Status.NFS3_OK, response2.getStatus());
}