pam_succeed_if


SYNOPSIS
       pam_succeed_if.so [flag...] [condition...]

DESCRIPTION
       pam_succeed_if.so is designed to succeed or fail authentication based
       on characteristics of the account belonging to the user being
       authenticated. One use is to select whether to load other modules based
       on this test.

       The module should be given one or more conditions as module arguments,
       and authentication will succeed only if all of the conditions are met.

OPTIONS
       The following flags are supported:

       debug
           Turns on debugging messages sent to syslog.

       use_uid
           Evaluate conditions using the account of the user whose UID the
           application is running under instead of the user being
           authenticated.

       quiet
           Don't log failure or success to the system log.

       quiet_fail
           Don't log failure to the system log.

       quiet_success
           Don't log success to the system log.

       audit
           Log unknown users to the system log.

       Conditions are three words: a field, a test, and a value to test for.

       Available fields are user, uid, gid, shell, home and service:

       field < number
           Field has a value numerically less than number.

       field <= number
           Field has a value numerically less than or equal to number.

       field eq number
           Field has a value numerically equal to number.

       field >= number
           Field has a value numerically greater than or equal to number.

       field > number
           Field has a value numerically greater than number.

       field !~ glob
           Field does not match the given glob.

       field in item:item:...
           Field is contained in the list of items separated by colons.

       field notin item:item:...
           Field is not contained in the list of items separated by colons.

       user ingroup group
           User is in given group.

       user notingroup group
           User is not in given group.

       user innetgr netgroup
           (user,host) is in given netgroup.

       user notinnetgr group
           (user,host) is not in given netgroup.

MODULE TYPES PROVIDED
       All module types (account, auth, password and session) are provided.

RETURN VALUES
       PAM_SUCCESS
           The condition was true.

       PAM_AUTH_ERR
           The condition was false.

       PAM_SERVICE_ERR
           A service error occurred or the arguments can't be parsed
           correctly.

EXAMPLES
       To emulate the behaviour of pam_wheel, except there is no fallback to
       group 0:

           auth required pam_succeed_if.so quiet user ingroup wheel


       Given that the type matches, only loads the othermodule rule if the UID
       is over 500. Adjust the number after default to skip several rules.

           type [default=1 success=ignore] pam_succeed_if.so quiet uid > 500
           type required othermodule.so arguments...


SEE ALSO
       glob(7), pam(7)

AUTHOR
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