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.\" ========================================================================
.\"
.IX Title "cipux-rbac.conf 3pm"
.TH cipux-rbac.conf 3pm "2008-12-15" "perl v5.10.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "cipux\-rbac.conf"
.IX Header "cipux-rbac.conf"
.ie n .SS "%rbac_cfg"
.el .SS "\f(CW%rbac_cfg\fP"
.IX Subsection "%rbac_cfg"
\&\s-1TODO\s0
.ie n .SS "%rbac_scope"
.el .SS "\f(CW%rbac_scope\fP"
.IX Subsection "%rbac_scope"
\&\s-1TODO\s0
.PP
\fIStructure Considerations\fR
.IX Subsection "Structure Considerations"
.PP
There are several aproaches and naming schemata to implement the \s-1RABC\s0 structure
for tasks.
.PP
This (non valid) example might not be very common, because it implements the
student self administration.
.PP
.Vb 10
\& Task::cipux_task_list_student_accounts | task         \e   
\&  |                                     |              | ou=Task
\&  \`\-\- cipuxAclProgramMember             | attribute    |
\&      = student.cgi                     | program name / \e
\&         |                              |                | ou=CAT
\&         \`\-\- cipuxAclRoleMember         | attribute      | 
\&             = student                  | role name    \e /
\&                |                       |              |
\&                \`\-\- cipuxAclUserMember  | attribute    | ou=Group
\&                    = bibaggings        | user name    /
.Ve
.PP
The above example constructs a clean approach with seperated \s-1LDAP\s0 attributes
like cipuxAclProgramMember, cipuxAclRoleMember and cipuxAclUserMember, but it
has a big disadvantage. If you look at a normal Group node, which consists out
of the object class posixGroup, you will notice that for the filesystem and \s-1PAM\s0
normally the attribuet memberUid is used to describe the membership.  Therefore
\&\- in this example \- the \s-1ACL\s0 hierary for CipUX::RABC and the file sytem group
membership might member out of sync. If that is what you what: ok, but mostly
you would not like ask yourself questions like: Why the user (who is in the
\&\s-1POSIX\s0 group student) can access object \s-1XY\s0 on the filesystem but can not access
the \s-1CAT\s0 module module teacher? The anser would be of course: He is not in the
attribute cipuxAclUserMember.
.PP
To avoid inconsitency we made the follwoing schema valid for debian now: The
effective rights on the filesystem concerning roles (aka groups) and the ACLs
CipUX uses are the same, because the attribute is the same.
.PP
.Vb 10
\& Task::cipux_task_list_teacher_accounts | task         \e   
\&  |                                     |              | ou=Task
\&  \`\-\- cipuxMemberPid                    | attribute    |
\&      = teacher.cgi                     | program name / \e
\&         |                              |                | ou=CAT
\&         \`\-\- cipuxMemberRid             | attribute      | 
\&             = teacher                  | role name    \e /
\&                |                       |              |
\&                \`\-\- memberUid           | attribute    | ou=Group
\&                    = chkuelker         | user name    /
.Ve
.PP
As you can see memberUid is not a \s-1LDAP\s0 attribute out of the cipux.schema. The
second thing is that we dropped the Acl part of the attribute, to state that
this might not used only for \s-1ACL\s0.
.PP
.Vb 10
\&        # +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
\&        # | RBAC hierarchy structure                                        |
\&        # +\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-+
\&        #
\&        # dim 0 = etc config space ($config_hr0 ...$config_hr2)
\&        # dim 1 = distribution space (debian, debian\-edu, ....)
\&        # dim 2 = RBAC scope (task, cat, ...)
\&        # dim 3 = RBAC level, hierarchy level (0,1, ..., n)
\&        # dim 4 = level config space (list, member, ...)
\&        # dim 5 = level config values (cipux_task_list_tasks, ...)
.Ve
.ie n .SS "%rbac_explain"
.el .SS "\f(CW%rbac_explain\fP"
.IX Subsection "%rbac_explain"
\&\s-1TODO\s0