IPv6: Create temporary address if none exists.

If privacy extentions are enabled, but no current temporary address exists,
then create one when we get a router advertisement.

Signed-off-by: Glenn Wurster <gwurster@scs.carleton.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 2 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index ec7a91d9e865..8ed6763dae96 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2021,10 +2021,11 @@ ok:
                                         ipv6_ifa_notify(0, ift);
                         }
 
-                        if (create && in6_dev->cnf.use_tempaddr > 0) {
+                        if ((create || list_empty(&in6_dev->tempaddr_list)) && in6_dev->cnf.use_tempaddr > 0) {
                                 /*
                                  * When a new public address is created as described in [ADDRCONF],
-                                 * also create a new temporary address.
+                                 * also create a new temporary address. Also create a temporary
+                                 * address if it's enabled but no temporary address currently exists.
                                  */
                                 read_unlock_bh(&in6_dev->lock);
                                 ipv6_create_tempaddr(ifp, NULL);