1 files changed, 37 insertions, 0 deletions

diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 5dc094b9732d..2c17c7efad46 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -813,6 +813,43 @@ fail:
         return NULL;
 }
 
+struct sctp_ulpevent *sctp_ulpevent_make_authkey(
+        const struct sctp_association *asoc, __u16 key_id,
+        __u32 indication, gfp_t gfp)
+{
+        struct sctp_ulpevent *event;
+        struct sctp_authkey_event *ak;
+        struct sk_buff *skb;
+
+        event = sctp_ulpevent_new(sizeof(struct sctp_authkey_event),
+                                  MSG_NOTIFICATION, gfp);
+        if (!event)
+                goto fail;
+
+        skb = sctp_event2skb(event);
+        ak = (struct sctp_authkey_event *)
+                skb_put(skb, sizeof(struct sctp_authkey_event));
+
+        ak->auth_type = SCTP_AUTHENTICATION_EVENT;
+        ak->auth_flags = 0;
+        ak->auth_length = sizeof(struct sctp_authkey_event);
+
+        ak->auth_keynumber = key_id;
+        ak->auth_altkeynumber = 0;
+        ak->auth_indication = indication;
+
+        /*
+         * The association id field, holds the identifier for the association.
+         */
+        sctp_ulpevent_set_owner(event, asoc);
+        ak->auth_assoc_id = sctp_assoc2id(asoc);
+
+        return event;
+fail:
+        return NULL;
+}
+
+
 /* Return the notification type, assuming this is a notification
  * event.
  */