Determining a User's Default Project

To log in to the system, a user must be assigned a default project.

Because each process on the system possesses project membership, an algorithm to assign a default project to the login or other initial process is necessary. The algorithm to determine a default project consists of four steps. If no default project is found, the user's login (or request to start a process) is denied.

The system sequentially follows these steps to determine a user's default project:

1. If the user has an entry with a project attribute defined in the /etc/user_attr extended user attributes database, then the value of the project attribute is the default project (see user_attr(4)).

2. If a project with the name user.user-id is present in the project(4) database, then that project is the default project.

3. If a project with the name group.group-name is present in the project database, where group-name is the name of the default group for the user (as specified in passwd(4)), then that project is the default project.

4. If the special project default is present in the project database, then that project is the default project.

This logic is provided by the getdefaultproj() library function (see getprojent(3PROJECT)).