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|
User Statements
===============
user
----
Declares an SELinux user identifier in the current namespace.
**Statement definition:**
(user user_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>user</code></p></td>
<td align="left"><p>The <code>user</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>The SELinux <code>user</code> identifier.</p></td>
</tr>
</tbody>
</table>
**Example:**
This will declare an SELinux user as `unconfined.user`:
(block unconfined
(user user)
)
userrole
--------
Associates a previously declared [`user`](cil_user_statements.md#user) identifier with a previously declared [`role`](cil_role_statements.md#role) identifier.
**Statement definition:**
(userrole user_id role_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>userrole</code></p></td>
<td align="left"><p>The <code>userrole</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> or <code>userattribute</code> identifier.</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>role_id</code></p></td>
<td align="left"><p>A previously declared <code>role</code> or <code>roleattribute</code> identifier.</p></td>
</tr>
</tbody>
</table>
**Example:**
This example will associate `unconfined.user` to `unconfined.role`:
(block unconfined
(user user)
(role role)
(userrole user role)
)
userattribute
-------------
Declares a user attribute identifier in the current namespace. The identifier may have zero or more [`user`](cil_user_statements.md#user) and [`userattribute`](cil_user_statements.md#userattribute) identifiers associated to it via the [`userattributeset`](cil_user_statements.md#userattributeset) statement.
**Statement definition:**
(userattribute userattribute_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>userattribute</code></p></td>
<td align="left"><p>The <code>userattribute</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>userattribute_id</code></p></td>
<td align="left"><p>The <code>userattribute</code> identifier.</p></td>
</tr>
</tbody>
</table>
**Example:**
This example will declare a user attribute `users.user_holder` that will have an empty set:
(block users
(userattribute user_holder)
)
userattributeset
----------------
Allows the association of one or more previously declared [`user`](cil_user_statements.md#user) or [`userattribute`](cil_user_statements.md#userattribute) identifiers to a [`userattribute`](cil_user_statements.md#userattribute) identifier. Expressions may be used to refine the associations as shown in the examples.
**Statement definition:**
(userattributeset userattribute_id (user_id ... | expr ...))
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>userattributeset</code></p></td>
<td align="left"><p>The <code>userattributeset</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>userattribute_id</code></p></td>
<td align="left"><p>A single previously declared <code>userattribute</code> identifier.</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>Zero or more previously declared <code>user</code> or <code>userattribute</code> identifiers.</p>
<p>Note that there must be at least one <code>user_id</code> or <code>expr</code> parameter declared.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>expr</code></p></td>
<td align="left"><p>Zero or more <code>expr</code>'s, the valid operators and syntax are:</p>
<p><code> (and (user_id ...) (user_id ...))</code></p>
<p><code> (or (user_id ...) (user_id ...))</code></p>
<p><code> (xor (user_id ...) (user_id ...))</code></p>
<p><code> (not (user_id ...))</code></p>
<p><code> (all)</code></p></td>
</tr>
</tbody>
</table>
**Example:**
This example will declare three users and two user attributes, then associate all the users to them as shown:
(block users
(user user_1)
(user user_2)
(user user_3)
(userattribute user_holder)
(userattributeset user_holder (user_1 user_2 user_3))
(userattribute user_holder_all)
(userattributeset user_holder_all (all))
)
userlevel
---------
Associates a previously declared [`user`](cil_user_statements.md#user) identifier with a previously declared [`level`](cil_mls_labeling_statements.md#level) identifier. The [`level`](cil_mls_labeling_statements.md#level) may be named or anonymous.
**Statement definition:**
(userlevel user_id level_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>userlevel</code></p></td>
<td align="left"><p>The <code>userlevel</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> identifier.</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>level_id</code></p></td>
<td align="left"><p>A previously declared <code>level</code> identifier. This may consist of a single <code>sensitivity</code> with zero or more mixed named and anonymous <code>category</code>'s as discussed in the <code>level</code> statement.</p></td>
</tr>
</tbody>
</table>
**Example:**
This example will associate `unconfined.user` with a named [`level`](cil_mls_labeling_statements.md#level) of `systemlow`:
(sensitivity s0)
(level systemlow (s0))
(block unconfined
(user user)
(userlevel user systemlow)
; An anonymous example:
;(userlevel user (s0))
)
userrange
---------
Associates a previously declared [`user`](cil_user_statements.md#user) identifer with a previously declared [`levelrange`](cil_mls_labeling_statements.md#levelrange) identifier. The [`levelrange`](cil_mls_labeling_statements.md#levelrange) may be named or anonymous.
**Statement definition:**
(userrange user_id levelrange_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>userrange</code></p></td>
<td align="left"><p>The <code>userrange</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> identifier.</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>levelrange_id</code></p></td>
<td align="left"><p>A previously declared <code>levelrange</code> identifier. This may be formed by named or anonymous components as discussed in the <code>levelrange</code> statement and shown in the examples.</p></td>
</tr>
</tbody>
</table>
**Example:**
This example will associate `unconfined.user` with a named [`levelrange`](cil_mls_labeling_statements.md#levelrange) of `low_high`, other anonymous examples are also shown:
(category c0)
(category c1)
(categoryorder (c0 c1))
(sensitivity s0)
(sensitivity s1)
(dominance (s0 s1))
(sensitivitycategory s0 (c0 c1))
(level systemLow (s0))
(level systemHigh (s0 (c0 c1)))
(levelrange low_high (systemLow systemHigh))
(block unconfined
(user user)
(role role)
(userrole user role)
; Named example:
(userrange user low_high)
; Anonymous examples:
;(userrange user (systemLow systemHigh))
;(userrange user (systemLow (s0 (c0 c1))))
;(userrange user ((s0) (s0 (c0 c1))))
)
userbounds
----------
Defines a hierarchical relationship between users where the child user cannot have more priviledges than the parent.
Notes:
- It is not possible to bind the parent to more than one child.
- While this is added to the binary policy, it is not enforced by the SELinux kernel services.
**Statement definition:**
(userbounds parent_user_id child_user_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>userbounds</code></p></td>
<td align="left"><p>The <code>userbounds</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>parent_user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> identifier.</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>child_user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> identifier.</p></td>
</tr>
</tbody>
</table>
**Example:**
The user `test` cannot have greater priviledges than `unconfined.user`:
(user test)
(unconfined
(user user)
(userbounds user .test)
)
userprefix
----------
Declare a user prefix that will be replaced by the file labeling utilities described at [http://selinuxproject.org/page/PolicyStoreConfigurationFiles](http://selinuxproject.org/page/PolicyStoreConfigurationFiles#file_contexts.template_File) that details the `file_contexts` entries.
**Statement definition:**
(userprefix user_id prefix)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>userprefix</code></p></td>
<td align="left"><p>The <code>userprefix</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> identifier.</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>prefix</code></p></td>
<td align="left"><p>The string to be used by the file labeling utilities.</p></td>
</tr>
</tbody>
</table>
**Example:**
This example will associate `unconfined.admin` user with a prefix of "[`user`](cil_user_statements.md#user)":
(block unconfined
(user admin
(userprefix admin user)
)
selinuxuser
-----------
Associates a GNU/Linux user to a previously declared [`user`](cil_user_statements.md#user) identifier with a previously declared MLS [`userrange`](cil_user_statements.md#userrange). Note that the [`userrange`](cil_user_statements.md#userrange) is required even if the policy is non-MCS/MLS.
**Statement definition:**
(selinuxuser user_name user_id userrange_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>selinuxuser</code></p></td>
<td align="left"><p>The <code>selinuxuser</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>user_name</code></p></td>
<td align="left"><p>A string representing the GNU/Linux user name</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> identifier.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>userrange_id</code></p></td>
<td align="left"><p>A previously declared <code>userrange</code> identifier that has been associated to the <code>user</code> identifier. This may be formed by named or anonymous components as discussed in the <code>userrange</code> statement and shown in the examples.</p></td>
</tr>
</tbody>
</table>
**Example:**
This example will associate `unconfined.admin` user with a GNU / Linux user "`admin_1`":
(block unconfined
(user admin)
(selinuxuser admin_1 admin low_low)
)
selinuxuserdefault
------------------
Declares the default SELinux user. Only one [`selinuxuserdefault`](cil_user_statements.md#selinuxuserdefault) statement is allowed in the policy. Note that the [`userrange`](cil_user_statements.md#userrange) identifier is required even if the policy is non-MCS/MLS.
**Statement definition:**
(selinuxuserdefault user_id userrange_id)
**Where:**
<table>
<colgroup>
<col width="25%" />
<col width="75%" />
</colgroup>
<tbody>
<tr class="odd">
<td align="left"><p><code>selinuxuserdefault</code></p></td>
<td align="left"><p>The <code>selinuxuserdefault</code> keyword.</p></td>
</tr>
<tr class="even">
<td align="left"><p><code>user_id</code></p></td>
<td align="left"><p>A previously declared SELinux <code>user</code> identifier.</p></td>
</tr>
<tr class="odd">
<td align="left"><p><code>userrange_id</code></p></td>
<td align="left"><p>A previously declared <code>userrange</code> identifier that has been associated to the <code>user</code> identifier. This may be formed by named or anonymous components as discussed in the <code>userrange</code> statement and shown in the examples.</p></td>
</tr>
</tbody>
</table>
**Example:**
This example will define the `unconfined.user` as the default SELinux user:
(block unconfined
(user user)
(selinuxuserdefault user low_low)
)
|
