From 539b0d759755145eb20c5fd2938d47aac7049480 Mon Sep 17 00:00:00 2001
From: Jeffrey Altman <jaltman@your-file-system.com>
Date: Wed, 11 Feb 2015 01:25:04 -0500
Subject: [PATCH] ubik: DISK_UpdateInterfaceAddr == server restart

If a DISK_UpdateInterfaceAddr RPC is received the server that sent
it restarted.  Force the urecovery code to verify the server state.

Change-Id: I465863dc3a52d844b56d576bd55229435556cfd6
Reviewed-on: http://gerrit.openafs.org/11738
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Daria Brashear <shadow@your-file-system.com>
Reviewed-by: Jeffrey Hutzelman <jhutz@cmu.edu>
Reviewed-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Reviewed-by: Jeffrey Altman <jaltman@your-file-system.com>
(cherry picked from commit 30667a5d7b86b29f9aafe2b490d89b8e01bfc541)
Reviewed-on: http://gerrit.openafs.org/11774
Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
Reviewed-by: Chas Williams <3chas3@gmail.com>
Reviewed-by: Stephan Wiesand <stephan.wiesand@desy.de>
---
 src/ubik/remote.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/ubik/remote.c b/src/ubik/remote.c
index 11bf375faa..4723cf0672 100644
--- a/src/ubik/remote.c
+++ b/src/ubik/remote.c
@@ -724,6 +724,15 @@ SDISK_UpdateInterfaceAddr(struct rx_call *rxcall,
     for (i = 0; i < UBIK_MAX_INTERFACE_ADDR && ts->addr[i]; i++)
 	ubik_print("... %s\n", afs_inet_ntoa_r(ts->addr[i], hoststr));
 
+    /*
+     * The most likely cause of a DISK_UpdateInterfaceAddr RPC
+     * is because the server was restarted.  Reset its state
+     * so that no DISK_Begin RPCs will be issued until the
+     * known database version is current.
+     */
+    ts->beaconSinceDown = 0;
+    ts->currentDB = 0;
+    urecovery_LostServer();
     return 0;
 }