ceph: allow renewal of auth credentials

Add infrastructure to allow the mon_client to periodically renew its auth
credentials.  Also add a messenger callback that will force such a renewal
if a peer rejects our authenticator.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 9 insertions, 0 deletions

diff --git a/fs/ceph/messenger.c b/fs/ceph/messenger.c
index e4e8d4439d3a..c4341784ec8f 100644
--- a/fs/ceph/messenger.c
+++ b/fs/ceph/messenger.c
@@ -1849,6 +1849,15 @@ static void ceph_fault(struct ceph_connection *con)
                 con->in_msg = NULL;
         }
 
+        /*
+         * in case we faulted due to authentication, invalidate our
+         * current tickets so that we can get new ones.
+         */
+        if (con->auth_retry && con->ops->invalidate_authorizer) {
+                dout("calling invalidate_authorizer()\n");
+                con->ops->invalidate_authorizer(con);
+        }
+
         /* If there are no messages in the queue, place the connection
          * in a STANDBY state (i.e., don't try to reconnect just yet). */
         if (list_empty(&con->out_queue) && !con->out_keepalive_pending) {