RE: [dsdp-tm-dev] Extending RSE

["Oberhuber, Martin" <Martin.Oberhuber@xxxxxxxxxxxxx>]

Hi Sheldon,

 

Usually telnet is used for terminal / shell like connections only, but not for

browsing or transferring files.

 

My first recommendation to you would be to try and get some sort of file

transfer protocol running on your target. There are really really small

servers and agents available.

 

If that's not possible, but your target has some kind of shell that supports

shell commands like "ls", "dir", "chdir", etc. you can implement your own

remote file system browser through telnet, by mapping an RSE IFileService

request like getFiles() by executing such remote shell commands, parsing

the ASCII output and returning IHostFile instances as needed.

 

You'd still have a hard time transferring binary files, though, because the

telnet protocol cannot easily transfer binary data (so when you do e.g.

"cat remoteFile" in order to transfer it to local, this would be unreliable

for binary files). You could try and get around this by running a program

like uuencode / uudecode on the remote side, or having an xyzmodem

server (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=165893).

 

I hope that helps, and I'm looking forward to hearing about your

progress...

Cheers,
--
Martin Oberhuber
Wind River Systems, Inc.
Target Management Project Lead, DSDP PMC Member
http://www.eclipse.org/dsdp/tm

 

---

From: dsdp-tm-dev-bounces@xxxxxxxxxxx [mailto:dsdp-tm-dev-bounces@xxxxxxxxxxx] On Behalf Of Sheldon Dsouza
Sent: Wednesday, February 07, 2007 8:30 PM
To: Target Management developer discussions
Subject: Re: [dsdp-tm-dev] Extending RSE

Hi Martin,

             I am currently using SSH as a blue print for creating the telnet service as you said, but i have come across a problem. In the SSH there is a File service implementation for SFTP, but the targets which i will be connecting to are not going to support protocols like FTP, TFP . So is it possible for me to have RSE for the target where a user can browse the entire target file system using telnet without a file transfer protocol, because i guess protocols like FTP are only used for various operations on files.

Regards,
Sheldon

On 2/6/07, Oberhuber, Martin <Martin.Oberhuber@xxxxxxxxxxxxx > wrote:

Hello Sheldon,

 

A Telnet connector service / shell subsystem does not exist yet.

You can basically take the org.eclipse.rse.*.ssh as blueprint for doing it,

and replace the ssh service (based on Jsch) by a Telnet implementation.

 

For a telnet implementation, you can choose from Jakarta Commons Net

(which is already part of RSE), and the implementation in

org.eclipse.tm.terminal/src/org.eclipse.tm.terminal.internal.telnet

(which is discouraged API so I'd rather recommend Commons Net).

 

When you come up with a telnet connector for RSE, we'd appreciate

if you could contribute it under EPL!

Thanks,
--
Martin Oberhuber
Wind River Systems, Inc.
Target Management Project Lead, DSDP PMC Member
http://www.eclipse.org/dsdp/tm

 

---

From: dsdp-tm-dev-bounces@xxxxxxxxxxx [mailto:dsdp-tm-dev-bounces@xxxxxxxxxxx] On Behalf Of Sheldon Dsouza
Sent: Tuesday, February 06, 2007 6:28 PM
To: dsdp-tm-dev@xxxxxxxxxxx
Subject: [dsdp-tm-dev] Extending RSE

Hi,

               I have tried RSE ant it works well for protocols like FTP and SSH. I would like to use Telnet as the underline subsystem does it exist or do i have to extend RSE to support telnet.

               If so how do i exyend RSE to support Telnet protocol?

Regards,
Sheldon

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