PAM_UMASK

Section: Linux\-PAM Manual (8)
Updated: 06/16/2009
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pam_umask - PAM module to set the file mode creation mask

Synopsis

pam_umask.so [debug] [silent] [usergroups] [umask=mask]

DESCRIPTION

pam_umask is a PAM module to set the file mode creation mask of the current environment. The umask affects the default permissions assigned to newly created files.

The PAM module tries to get the umask value from the following places in the following order:

: * umask= argument

: * umask= entry of the users GECOS field

: * pri= entry of the users GECOS field

: * ulimit= entry of the users GECOS field

: * UMASK= entry from /etc/default/login

: * UMASK entry from /etc/login.defs

OPTIONS

debug

: Print debug information.

silent

: Don't print informative messages.

usergroups

: If the user is not root, and the user ID is equal to the group ID, and the username is the same as primary group name, the umask group bits are set to be the same as owner bits (examples: 022 -> 002, 077 -> 007).

umask=mask

: Sets the calling process's file mode creation mask (umask) to mask & 0777. The value is interpreted as Octal.

MODULE TYPES PROVIDED

Only the session type is provided.

RETURN VALUES

PAM_SUCCESS

: The new umask was set successfully.

PAM_SERVICE_ERR

: No username was given.

PAM_USER_UNKNOWN

: User not known.

EXAMPLES

Add the following line to FC/etc/pam.d/loginF[] to set the user specific umask at login:



        session optional pam_umask.so umask=0022

AUTHOR

pam_umask was written by Thorsten Kukuk <kukuk@thkukuk.de>.

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Time: 05:34:28 GMT, December 24, 2015