Signed-off-by: James Carter <jwcart2@xxxxxxxxx>
---
v4: Remove the "*Where" section, since the notself patch series moves all
of that to beginning of the access vector section before talking about
specific rules.
secilc/docs/cil_access_vector_rules.md | 41 +++++++++++++++++++++++++-
1 file changed, 40 insertions(+), 1 deletion(-)
diff --git a/secilc/docs/cil_access_vector_rules.md b/secilc/docs/cil_access_vector_rules.md
index 034185da..47da60fc 100644
--- a/secilc/docs/cil_access_vector_rules.md
+++ b/secilc/docs/cil_access_vector_rules.md
@@ -19,7 +19,7 @@ Rules involving a source type, a target type, and class permissions or extended
<tbody>
<tr class="odd">
<td align="left"><p><code>av_flavor</code></p></td>
-<td align="left"><p>The flavor of access vector rule. Possible flavors are <code>allow</code>, <code>auditallow</code>, <code>dontaudit</code>, <code>neverallow</code>, <code>allowx</code>, <code>auditallowx</code>, <code>dontauditx</code>, <code>neverallowx</code>.</p></td>
+<td align="left"><p>The flavor of access vector rule. Possible flavors are <code>allow</code>, <code>auditallow</code>, <code>dontaudit</code>, <code>neverallow</code>, <code>deny</code>, <code>allowx</code>, <code>auditallowx</code>, <code>dontauditx</code>, and <code>neverallowx</code>.</p></td>
<tr class="even">
<td align="left"><p><code>source_id</code></p></td>
<td align="left"><p>A single previously defined source <code>type</code>, <code>typealias</code> or <code>typeattribute</code> identifier.</p></td>
@@ -175,6 +175,45 @@ This example will not compile as `type_3` is not allowed to be a source type for
(allow type_3 self (property_service (set)))
)
```
+deny
+----------
+
+Remove the access rights defined from any matching allow rules. These rules are processed before [`neverallow`](cil_access_vector_rules.md#neverallow) checking.
+
+**Rule definition:**
+
+```secil
+ (deny source_id target_id|self classpermissionset_id ...)
+```
+
+**Example:**
+
+```secil
+ (class class1 (perm1 perm2))
+
+ (type type1)
+ (type type2)
+ (allow type1 type2 (class1 (perm1))) ; Allow-1
+ (deny type1 type2 (class1 (perm1))) ; Deny-1
+ ; Allow-1 will be complete removed by Deny-1.
+
+ (type type3)
+ (type type4)
+ (allow type3 type4 (class1 (perm1 perm2))) ; Allow-2
+ (deny type3 type4 (class1 (perm1))) ; Deny-2
+ ; Allow-2 will be removed and replaced with the following when Deny-2 is evaluated
+ ; (allow type3 type4 (class1 (perm2)))
+
+ (type type5)
+ (type type6)
+ (typeattribute attr1)
+ (typeattributeset attr1 (type5 type6))
+ (allow attr1 attr1 (class1 (perm1))) ; Allow-3
+ (deny type5 type6 (class1 (perm1))) ; Deny-3
+ ; Allow-3 will be removed and replaced with the following when Deny-3 is evaluated
+ ; (allow type6 attr1 (class1 (perm1)))
+ ; (allow type5 type5 (class1 (perm1)))
+```
allowx
------
--
2.41.0
