PAM_UMASK

Section: Linux\-PAM Manual (8)
Updated: 08/06/2006
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NAME

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 SERVICES PROVIDED

Only the session service is supported.  

RETURN VALUES

PAM_SUCCESS
The new umask was set successfull.
PAM_SERVICE_ERR
No username was given.
PAM_USER_UNKNOWN
User not known.
 

EXAMPLES

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

        session optional pam_umask.so umask=0022
      

 

SEE ALSO

pam.conf(5), pam.d(8), pam(8)  

AUTHOR

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
MODULE SERVICES PROVIDED
RETURN VALUES
EXAMPLES
SEE ALSO
AUTHOR

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