pam_get_data / pam_set_data does not work if used if sshd

Darren Tucker dtucker at zip.com.au
Sat Apr 23 06:48:12 UTC 2005


Kala B wrote:
> I have a PAM module which I use with /etc/pam.d/sshd. I do a
> pam_set_data() in the auth stack and do a pam_get_data() in the
> open_session call. But pam_get_data() returns "No module specific data
> is present". The same module when used with say, /etc/pam.d/login
> works fine. I checked that the pamhandle is the same. So, ideally it
> should contain the data.
> 
> Is this problem specific to sshd or PAM? 

A bit of both.  PAM's API forces sshd to do contortions to support the 
keyboard-interactive auth type, and this is part of the fallout.  See:
http://bugzilla.mindrot.org/show_bug.cgi?id=688

-- 
Darren Tucker (dtucker at zip.com.au)
GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4  37C9 C982 80C7 8FF4 FA69
     Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.




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