Re: Record SSH session

[Jakub Jelen <jjelen@xxxxxxxxxx>]

On 3/16/23 02:53, Jose David Bravo A wrote:
> Hello,
>
> Is there any way to record a SSH session, like script/replayscript 
> functionality but using libssh?
>
> If that's not a functionality that the lib has, may you please point me 
> in the direction of how this can be implemented, for example using 
> ssh_client.c ?

There is no functionality for this in libssh. There are several 
standalone tools, for example tlog (which is nicely integrated in RHEL).

It really depends on your use case, if you want to record it on the 
client or on the server or if you have some pre-existing tools or 
formats for storing recordings.

If you are up to the client, the ssh client example is using connectors 
for the IO handling. To plug the recording in, I think you can create 
your own callbacks that would do the logging and call the default 
callbacks (or reimplement them as they do not look like part of the API):

https://gitlab.com/libssh/libssh-mirror/-/blob/master/examples/ssh_client.c#L206

Regards,
--
Jakub Jelen
Crypto Team, Security Engineering
Red Hat, Inc.