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authorEric Paris <eparis@redhat.com>2012-01-03 14:23:08 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-17 16:17:01 -0500
commit02d86a568c6d2d335256864451ac8ce781bc5652 (patch)
tree3ef085bd96cc79733cff28993379dbbd4b855813 /include
parent29ef73b7a823b77a7cd0bdd7d7cded3fb6c2587b (diff)
downloadlinaro-lsk-02d86a568c6d2d335256864451ac8ce781bc5652.tar.gz
audit: allow interfield comparison in audit rules
We wish to be able to audit when a uid=500 task accesses a file which is uid=0. Or vice versa. This patch introduces a new audit filter type AUDIT_FIELD_COMPARE which takes as an 'enum' which indicates which fields should be compared. At this point we only define the task->uid vs inode->uid, but other comparisons can be added. Signed-off-by: Eric Paris <eparis@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/audit.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 7cbd6fe4157..838e05fc058 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -182,7 +182,10 @@
* AUDIT_UNUSED_BITS is updated if need be. */
#define AUDIT_UNUSED_BITS 0x07FFFC00
+/* AUDIT_FIELD_COMPARE rule list */
+#define AUDIT_COMPARE_UID_TO_OBJ_UID 1
+#define AUDIT_MAX_FIELD_COMPARE AUDIT_COMPARE_UID_TO_OBJ_UID
/* Rule fields */
/* These are useful when checking the
* task structure at task creation time
@@ -225,6 +228,7 @@
#define AUDIT_FILETYPE 108
#define AUDIT_OBJ_UID 109
#define AUDIT_OBJ_GID 110
+#define AUDIT_FIELD_COMPARE 111
#define AUDIT_ARG0 200
#define AUDIT_ARG1 (AUDIT_ARG0+1)