Question on ntlm_auth tool
abartlet at samba.org
Fri Sep 10 08:44:27 GMT 2004
On Fri, 2004-09-10 at 10:02, Yimin Chen wrote:
> Hi Andrew,
> Thank you very much for the suggestion. I wasn't aware at all that
> winbind_request APIs are not for external use.
> Now Looking at the ntlm_auth tool again, I have a few more questions:
> 1) What is the option to retrieve the challenge from the server? In the
> NTLM authentication case, we need to pass the challenge back to client,
> and then retrieve the NT LM responses from client response, and pass the
> callenge as well as the NT LM responses to the ntlm_auth tool, right?
> I must have missed something, but can't figure out.
Are you doing NTLM or NTLMSSP? What is the target protocol? (MSCHAP?
Fundamentally, ntlm_auth operates as a privileged client in the domain,
and the challenge is either generated inside the helper, or supplied to
it, depending on mode of operation.
> 2) Is there a dynamic library API instead of binary calls of ntlm_auth
> that we can use to achieve the ntlm authentication? Invoking API calls
> could have lower overhead than binary calls.
Not at this stage - it was decided that a fork()/exec() interface
allowed for the best compatibility going forward, as well as a clear
licence boundary. There are proposals for a shared lib interface for
other winbind functions, but I don't yet see the need to extend it here.
Andrew Bartlett abartlet at samba.org
Authentication Developer, Samba Team http://samba.org
Student Network Administrator, Hawker College abartlet at hawkerc.net
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