2 files changed, 14 insertions, 5 deletions

diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 4d100c841c80..2ccf19e06e15 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -322,9 +322,15 @@ enum {
 #define AUDIT_STATUS_BACKLOG_LIMIT      0x0010
 #define AUDIT_STATUS_BACKLOG_WAIT_TIME  0x0020
 
-#define AUDIT_VERSION_BACKLOG_LIMIT     1
-#define AUDIT_VERSION_BACKLOG_WAIT_TIME 2
-#define AUDIT_VERSION_LATEST AUDIT_VERSION_BACKLOG_WAIT_TIME
+#define AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT      0x00000001
+#define AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME  0x00000002
+#define AUDIT_FEATURE_BITMAP_ALL (AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT | \
+                                  AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME)
+
+/* deprecated: AUDIT_VERSION_* */
+#define AUDIT_VERSION_LATEST            AUDIT_FEATURE_BITMAP_ALL
+#define AUDIT_VERSION_BACKLOG_LIMIT     AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT
+#define AUDIT_VERSION_BACKLOG_WAIT_TIME AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME
 
                                 /* Failure-to-log actions */
 #define AUDIT_FAIL_SILENT       0
@@ -403,7 +409,10 @@ struct audit_status {
         __u32           backlog_limit;  /* waiting messages limit */
         __u32           lost;           /* messages lost */
         __u32           backlog;        /* messages waiting in queue */
-        __u32           version;        /* audit api version number */
+        union {
+                __u32   version;        /* deprecated: audit api version num */
+                __u32   feature_bitmap; /* bitmap of kernel audit features */
+        };
         __u32           backlog_wait_time;/* message queue wait timeout */
 };
 
diff --git a/kernel/audit.c b/kernel/audit.c
index 53bb39bf79e2..7b83c557aee6 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -842,7 +842,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
                 s.backlog_limit         = audit_backlog_limit;
                 s.lost                  = atomic_read(&audit_lost);
                 s.backlog               = skb_queue_len(&audit_skb_queue);
-                s.version               = AUDIT_VERSION_LATEST;
+                s.feature_bitmap        = AUDIT_FEATURE_BITMAP_ALL;
                 s.backlog_wait_time     = audit_backlog_wait_time;
                 audit_send_reply(skb, seq, AUDIT_GET, 0, 0, &s, sizeof(s));
                 break;