[Libssh] Implementing a SSH server

[Jan Willamowius]

Hi Aris,

using ssh_bind_accept with a file descriptor in to-be-accepted state
work better indeed.
I didn't think of this, because ssh_bind_set_fd() is missing, but I
wrote my fd directly into ssh_bind->bindfd and that works fine.

Thanks for your help,
Jan

PS: To implement a server, one still needs to include priv.h and it
would be great if you would accept the patch I submitted to add "extern
C" declarations.


Aris Adamantiadis wrote:
> Hello,
> 
> after reading server.c source, it seems that what you want to do is not
> possible using only the external API. So I understand why you got out
> some code from ssh_bind_accept() into your own code.
> Your code has the two lines:
>     session->dsa_key = dsa;
>     session->rsa_key = rsa;
> How did you define the variables dsa and rsa ? You will have to set them
> as explained in ssh_bind_accept().
> 
> It's really ugly but it might work as expected.
> Something possible would be changing your app a little to use
> ssh_bind_accept by giving it a file descriptor in the to-be-accepted state.
> 
> I agree it lacks a function like
> ssh_accept_fd(SSH_OPTIONS options, int fd);
> 
> Maybe in 0.3
> 
> Regards,
> 
> Aris
> 
> Jan Willamowius a écrit :
> > Hi,
> > 
> > I'm trying to use libssh to replace a telent server in a C++ application
> > with a ssh server. I'm sticking as close to the samplesshd as I can,
> > but I have to pass in the file descriptor for the socket.
> > 
> > When running under valgrind, I can see that my code throws a lot of
> > errors in ssh_accept() about crypto variables not being initialized,
> > while samplesshd doesn't.
> > 
> > My code looks like this:
> > 
> >     session = ssh_new();
> >     session->server = 1;
> >     session->version = 2;
> >     SSH_OPTIONS *options = ssh_options_new();
> >     ssh_options_set_dsa_server_key(options, "ssh_host_dsa_key");
> >     ssh_options_set_rsa_server_key(options, "ssh_host_rsa_key");
> >     // ... read keys ...
> >     ssh_socket_free(session->socket);
> >     session->socket = ssh_socket_new(session);
> >     ssh_socket_set_fd(session->socket, NEW_HANDLE);
> >     ssh_options_set_fd(options, NEW_HANDLE);
> >     ssh_set_options(session, options);
> >     session->dsa_key = dsa;
> >     session->rsa_key = rsa;
> > 
> >     if(ssh_accept(session)) {
> > 	return false;
> >     }
> > 
> > What else do i need to initialize before calling ssh_accept() ?
> > 
> > Thanks,
> > Jan

-- 
Jan Willamowius, jan at willamowius.de, http://www.willamowius.de/