In addition to parts of TUX running in kernel-space, user-loadable modules can also be written for TUX.
The API for the user-loadable modules is currently under development. This section of the documentation will be updated as the API becomes available.
A list of user-space loadable TUX modules and their location must be specified with the TUXMODULES parameter in /etc/sysconfig/tux. Refer to the section called Parameters in Chapter 3 for details.
Starting with TUX version 2.0.13 and kernel patch 2.4.2-P3, user-space loadable modules do not require special permissions to be activated. Instead, the module is specified using a common MIME type definition file. The user-space modules must end with the file extension .tux or .x and specified with the TUXMODULES parameter in /etc/sysconfig/tux. The file must be owned by root with root as the group and must be world-readable. It does not have to be executable. For example, to use the demo.tux user-space loadable module, you might have the following file:
[root@m /]# ls -l /var/www/html/demo.tux -rw-rw-r-- 1 root root 0 Sep 3 04:42 /var/www/html/demo.tux
For further information about writing a TUX user-space loadable module, see the file /usr/share/doc/tux-2.0/TUXAPI-user.txt.