audit: validate comparison operations, store them in sane form
Don't store the field->op in the messy (and very inconvenient for e.g.
audit_comparator()) form; translate to dense set of values and do full
validation of userland-submitted value while we are at it.
->audit_init_rule() and ->audit_match_rule() get new values now; in-tree
instances updated.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/audit.h b/include/linux/audit.h
index cc71fdb..67e5dbf 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -247,6 +247,18 @@
#define AUDIT_GREATER_THAN_OR_EQUAL (AUDIT_GREATER_THAN|AUDIT_EQUAL)
#define AUDIT_OPERATORS (AUDIT_EQUAL|AUDIT_NOT_EQUAL|AUDIT_BIT_MASK)
+enum {
+ Audit_equal,
+ Audit_not_equal,
+ Audit_bitmask,
+ Audit_bittest,
+ Audit_lt,
+ Audit_gt,
+ Audit_le,
+ Audit_ge,
+ Audit_bad
+};
+
/* Status symbols */
/* Mask values */
#define AUDIT_STATUS_ENABLED 0x0001