pam_exec.so PAM module does not export variable PAM_USER as stated in the documentation

Posted by davidparks21 on Server Fault See other posts from Server Fault or by davidparks21
Published on 2011-06-17T04:54:28Z Indexed on 2011/11/23 17:53 UTC
Read the original article Hit count: 382

Filed under:

unix

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authentication

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pam

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shell-scripting

I'm trying to use the pam_exec.so PAM module to execute a script which needs to know the username/password coming from the application (OpenVPN in this case).

I have a script that executes printenv >>afile, but I don't see all the environment variables that the man pages states that pam_exec.so exports (namely PAM_USER I think), I only see the following:

PAM_SERVICE=openvpn
PAM_TYPE=auth
PWD=/usr/local/openvpn/bin
SHLVL=1
A__z="*SHLVL

I do successfully pick up the password off of STDIN and output it with this same script. But for the life of me I can't get the username.

Any thoughts on what I should try next?

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