pam_unix_session provides functions to initiate pam_sm_open_session(3PAM) and to terminate pam_sm_close_session(3PAM).

pam_open_session updates the /var/adm/lastlog file. The account management module reads this file to determine the previous time the user logged in. pam_sm_close_session is a null function.

The following options can be passed to the module:

debug

syslog(3C) debugging information at the LOG_DEBUG level

nowarn

Turn off warning messages

The following values are returned:

PAM_SUCCESS

Successful completiton

PAM_SESSION_ERR

Can not make or remove the entry for the specified session

PAM_USER_UNKNOWN

No account is present for user

See attributes(5) for descriptions of the following attributes:

pam(3PAM), pam_authenticate(3PAM), syslog(3C), libpam(3LIB), pam.conf(4), nsswitch.conf(4), attributes(5), pam_authtok_check(5), pam_authtok_get(5), pam_authtok_store(5), pam_dhkeys(5), pam_passwd_auth(5), pam_unix(5), pam_unix_account(5),pam_unix_auth(5),

The interfaces in libpam(3LIB) are MT-Safe only if each thread within the multi-threaded application uses its own PAM handle.

The pam_unix(5) module might not be supported in a future release. Similar functionality is provided by pam_authtok_check(5), pam_authtok_get(5), pam_authtok_store(5), pam_dhkeys(5), pam_passwd_auth(5), pam_unix_account(5), pam_unix_auth(5), and pam_unix_session(5).